diff options
Diffstat (limited to 'tqtinterface/qt4/src/3rdparty/libmng/libmng_pixels.c')
| -rw-r--r-- | tqtinterface/qt4/src/3rdparty/libmng/libmng_pixels.c | 10845 |
1 files changed, 0 insertions, 10845 deletions
diff --git a/tqtinterface/qt4/src/3rdparty/libmng/libmng_pixels.c b/tqtinterface/qt4/src/3rdparty/libmng/libmng_pixels.c deleted file mode 100644 index 7379217..0000000 --- a/tqtinterface/qt4/src/3rdparty/libmng/libmng_pixels.c +++ /dev/null @@ -1,10845 +0,0 @@ -/* ************************************************************************** */ -/* * For conditions of distribution and use, * */ -/* * see copyright notice in libmng.h * */ -/* ************************************************************************** */ -/* * * */ -/* * project : libmng * */ -/* * file : libmng_pixels.c copyright (c) 2000 G.Juyn * */ -/* * version : 1.0.4 * */ -/* * * */ -/* * purpose : Pixel-row management routines (implementation) * */ -/* * * */ -/* * author : G.Juyn * */ -/* * web : http://www.3-t.com * */ -/* * email : mailto:info@3-t.com * */ -/* * * */ -/* * comment : implementation of the pixel-row management routines * */ -/* * * */ -/* * the dual alpha-composing for RGBA/BGRA/etc output-canvas' * */ -/* * is based on the Note on Compositing chapter of the * */ -/* * DOH-3 draft, noted to me by Adam M. Costello * */ -/* * * */ -/* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */ -/* * - changed strict-ANSI stuff * */ -/* * 0.5.1 - 05/11/2000 - G.Juyn * */ -/* * - added callback error-reporting support * */ -/* * 0.5.1 - 05/12/2000 - G.Juyn * */ -/* * - changed trace to macro for callback error-reporting * */ -/* * * */ -/* * 0.5.2 - 05/22/2000 - G.Juyn * */ -/* * - added JNG support * */ -/* * 0.5.2 - 05/30/2000 - G.Juyn * */ -/* * - fixed minor bugs 16-bit pixel-handling * */ -/* * - added delta-image row-processing routines * */ -/* * 0.5.2 - 06/02/2000 - G.Juyn * */ -/* * - fixed endian support (hopefully) * */ -/* * 0.5.2 - 06/03/2000 - G.Juyn * */ -/* * - fixed makeup for Linux gcc compile * */ -/* * 0.5.2 - 06/05/2000 - G.Juyn * */ -/* * - implemented app bkgd restore routines * */ -/* * - implemented RGBA8, ARGB8, BGRA8 & ABGR8 display routines * */ -/* * - added support for RGB8_A8 canvasstyle * */ -/* * 0.5.2 - 06/09/2000 - G.Juyn * */ -/* * - fixed alpha-handling for alpha canvasstyles * */ -/* * * */ -/* * 0.5.3 - 06/16/2000 - G.Juyn * */ -/* * - changed progressive-display processing * */ -/* * 0.5.3 - 06/17/2000 - G.Juyn * */ -/* * - changed to support delta-images * */ -/* * - optimized some store_xxx routines * */ -/* * 0.5.3 - 06/20/2000 - G.Juyn * */ -/* * - fixed nasty bug with embedded PNG after delta-image * */ -/* * 0.5.3 - 06/24/2000 - G.Juyn * */ -/* * - fixed problem with 16-bit GA format * */ -/* * 0.5.3 - 06/25/2000 - G.Juyn * */ -/* * - fixed problem with cheap transparency for 4-bit gray * */ -/* * - fixed display_xxxx routines for interlaced images * */ -/* * 0.5.3 - 06/28/2000 - G.Juyn * */ -/* * - fixed compiler-warning for non-initialized iB variable * */ -/* * * */ -/* * 0.9.1 - 07/05/2000 - G.Juyn * */ -/* * - fixed mandatory BACK color to be opaque * */ -/* * * */ -/* * 0.9.2 - 07/31/2000 - G.Juyn * */ -/* * - B110547 - fixed bug in interlace code * */ -/* * 0.9.2 - 08/05/2000 - G.Juyn * */ -/* * - changed file-prefixes * */ -/* * * */ -/* * 0.9.3 - 08/20/2000 - G.Juyn * */ -/* * - fixed app-supplied background restore * */ -/* * 0.9.3 - 08/26/2000 - G.Juyn * */ -/* * - added MAGN chunk * */ -/* * 0.9.3 - 09/07/2000 - G.Juyn * */ -/* * - added support for new filter_types * */ -/* * 0.9.3 - 09/30/2000 - G.Juyn * */ -/* * - fixed MAGN rounding errors (thanks Matthias!) * */ -/* * 0.9.3 - 10/10/2000 - G.Juyn * */ -/* * - fixed alpha-blending for RGBA canvasstyle * */ -/* * 0.9.3 - 10/11/2000 - G.Juyn * */ -/* * - fixed alpha-blending for other alpha-canvasstyles * */ -/* * 0.9.3 - 10/16/2000 - G.Juyn * */ -/* * - added optional support for bKGD for PNG images * */ -/* * - added support for JDAA * */ -/* * 0.9.3 - 10/17/2000 - G.Juyn * */ -/* * - fixed support for bKGD * */ -/* * 0.9.3 - 10/19/2000 - G.Juyn * */ -/* * - implemented delayed delta-processing * */ -/* * 0.9.3 - 10/28/2000 - G.Juyn * */ -/* * - fixed tRNS processing for gray-image < 8-bits * */ -/* * * */ -/* * 0.9.4 - 12/16/2000 - G.Juyn * */ -/* * - fixed mixup of data- & function-pointers (thanks Dimitri)* */ -/* * 0.9.4 - 1/18/2001 - G.Juyn * */ -/* * - removed "old" MAGN methods 3 & 4 * */ -/* * - added "new" MAGN methods 3, 4 & 5 * */ -/* * - removed test filter-methods 1 & 65 * */ -/* * * */ -/* * 1.0.1 - 04/21/2001 - G.Juyn (code by G.Kelly) * */ -/* * - added BGRA8 canvas with premultiplied alpha * */ -/* * 1.0.1 - 04/25/2001 - G.Juyn * */ -/* * - moved mng_clear_cms to libmng_cms * */ -/* * * */ -/* * 1.0.2 - 06/25/2001 - G.Juyn * */ -/* * - added option to turn off progressive refresh * */ -/* * * */ -/* * 1.0.4 - 11/04/2001 - G.Juyn * */ -/* * - fixed possible compile-problem in cleanup_rowproc * */ -/* * 1.0.4 - 06/22/2002 - G.Juyn * */ -/* * - B558212 - off by one error * */ -/* * - MNG subimage alpha composite wrong for rgba8 images * */ -/* * * */ -/* ************************************************************************** */ - -#include "libmng.h" -#include "libmng_data.h" -#include "libmng_error.h" -#include "libmng_trace.h" -#ifdef __BORLANDC__ -#pragma hdrstop -#endif -#include "libmng_objects.h" -#include "libmng_memory.h" -#include "libmng_cms.h" -#include "libmng_filter.h" -#include "libmng_pixels.h" - -#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) -#pragma option -A /* force ANSI-C */ -#endif - -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_DISPLAY_PROCS - -/* TODO: magnification & canvas-positioning/-clipping */ - -/* TODO: major optimization of pixel-loops by using assembler (?) */ - -/* ************************************************************************** */ -/* * * */ -/* * Interlace tables * */ -/* * * */ -/* ************************************************************************** */ - -mng_uint32 const interlace_row [7] = { 0, 0, 4, 0, 2, 0, 1 }; -mng_uint32 const interlace_rowskip [7] = { 8, 8, 8, 4, 4, 2, 2 }; -mng_uint32 const interlace_col [7] = { 0, 4, 0, 2, 0, 1, 0 }; -mng_uint32 const interlace_colskip [7] = { 8, 8, 4, 4, 2, 2, 1 }; -mng_uint32 const interlace_roundoff [7] = { 7, 7, 3, 3, 1, 1, 0 }; -mng_uint32 const interlace_divider [7] = { 3, 3, 2, 2, 1, 1, 0 }; - -/* ************************************************************************** */ -/* * * */ -/* * Alpha composing macros * */ -/* * the code below is slightly modified from the libpng package * */ -/* * the original was last optimized by Greg Roelofs & Mark Adler * */ -/* * * */ -/* ************************************************************************** */ - -#define MNG_COMPOSE8(RET,FG,ALPHA,BG) { \ - mng_uint16 iH = (mng_uint16)((mng_uint16)(FG) * (mng_uint16)(ALPHA) \ - + (mng_uint16)(BG)*(mng_uint16)(255 - \ - (mng_uint16)(ALPHA)) + (mng_uint16)128); \ - (RET) = (mng_uint8)((iH + (iH >> 8)) >> 8); } - -#define MNG_COMPOSE16(RET,FG,ALPHA,BG) { \ - mng_uint32 iH = (mng_uint32)((mng_uint32)(FG) * (mng_uint32)(ALPHA) \ - + (mng_uint32)(BG)*(mng_uint32)(65535L - \ - (mng_uint32)(ALPHA)) + (mng_uint32)32768L); \ - (RET) = (mng_uint16)((iH + (iH >> 16)) >> 16); } - -/* ************************************************************************** */ -/* * * */ -/* * Alpha blending macros * */ -/* * this code is based on Adam Costello's "Note on Compositing" from the * */ -/* * mng-list which gives the following formula: * */ -/* * * */ -/* * top pixel = (Rt, Gt, Bt, At) * */ -/* * bottom pixel = (Rb, Gb, Bb, Ab) * */ -/* * composite pixel = (Rc, Gc, Bc, Ac) * */ -/* * * */ -/* * all values in the range 0..1 * */ -/* * * */ -/* * Ac = 1 - (1 - At)(1 - Ab) * */ -/* * s = At / Ac * */ -/* * t = (1 - At) Ab / Ac * */ -/* * Rc = s Rt + t Rb * */ -/* * Gc = s Gt + t Gb * */ -/* * Bc = s Bt + t Bb * */ -/* * * */ -/* * (I just hope I coded it correctly in integer arithmetic...) * */ -/* * * */ -/* ************************************************************************** */ - -#define MNG_BLEND8(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ - mng_uint32 S, T; \ - (AC) = (mng_uint8)((mng_uint32)255 - \ - ((((mng_uint32)255 - (mng_uint32)(AT)) * \ - ((mng_uint32)255 - (mng_uint32)(AB)) ) >> 8)); \ - S = (mng_uint32)(((mng_uint32)(AT) << 8) / \ - (mng_uint32)(AC)); \ - T = (mng_uint32)(((mng_uint32)255 - (mng_uint32)(AT)) * \ - (mng_uint32)(AB) / (mng_uint32)(AC)); \ - (RC) = (mng_uint8)((S * (mng_uint32)(RT) + \ - T * (mng_uint32)(RB) + (mng_uint32)127) >> 8); \ - (GC) = (mng_uint8)((S * (mng_uint32)(GT) + \ - T * (mng_uint32)(GB) + (mng_uint32)127) >> 8); \ - (BC) = (mng_uint8)((S * (mng_uint32)(BT) + \ - T * (mng_uint32)(BB) + (mng_uint32)127) >> 8); } - -#define MNG_BLEND16(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ - mng_uint32 S, T; \ - (AC) = (mng_uint16)((mng_uint32)65525 - \ - ((((mng_uint32)65535 - (mng_uint32)(AT)) * \ - ((mng_uint32)65535 - (mng_uint32)(AB)) ) >> 16)); \ - S = (mng_uint32)(((mng_uint32)(AT) << 16) / \ - (mng_uint32)(AC)); \ - T = (mng_uint32)(((mng_uint32)65535 - (mng_uint32)(AT)) * \ - (mng_uint32)(AB) / (mng_uint32)(AC)); \ - (RC) = (mng_uint16)((S * (mng_uint32)(RT) + \ - T * (mng_uint32)(RB) + (mng_uint32)32767) >> 16); \ - (GC) = (mng_uint16)((S * (mng_uint32)(GT) + \ - T * (mng_uint32)(GB) + (mng_uint32)32767) >> 16); \ - (BC) = (mng_uint16)((S * (mng_uint32)(BT) + \ - T * (mng_uint32)(BB) + (mng_uint32)32767) >> 16); } - -/* ************************************************************************** */ - -/* note a good optimizing compiler will optimize this */ -#define DIV255B8(x) (mng_uint8)(((x) + 127) / 255) -#define DIV255B16(x) (mng_uint16)(((x) + 32767) / 65535) - -/* ************************************************************************** */ -/* * * */ -/* * Progressive display check - checks to see if progressive display is * */ -/* * in order & indicates so * */ -/* * * */ -/* * The routine is called after a call to one of the display_xxx routines * */ -/* * if appropriate * */ -/* * * */ -/* * The refresh is warrented in the read_chunk routine (mng_read.c) * */ -/* * and only during read&display processing, since there's not much point * */ -/* * doing it from memory! * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode display_progressive_check (mng_datap pData) -{ - if ((pData->bDoProgressive) && /* need progressive display? */ - ((pData->eImagetype != mng_it_mng) || (pData->iDataheight > 300)) && - (pData->iDestb - pData->iDestt > 50) && (!pData->pCurraniobj)) - { - mng_int32 iC = pData->iRow + pData->iDestt - pData->iSourcet; - - if (iC % 20 == 0) /* every 20th line */ - pData->bNeedrefresh = MNG_TRUE; - - } - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Display routines - convert rowdata (which is already color-corrected) * */ -/* * to the output canvas, respecting the opacity information * */ -/* * * */ -/* ************************************************************************** */ - -void check_update_region (mng_datap pData) -{ /* determine actual canvas row */ - mng_int32 iRow = pData->iRow + pData->iDestt - pData->iSourcet; - /* check for change in update-region */ - if ((pData->iDestl < (mng_int32)pData->iUpdateleft) || (pData->iUpdateright == 0)) - pData->iUpdateleft = pData->iDestl; - - if (pData->iDestr > (mng_int32)pData->iUpdateright) - pData->iUpdateright = pData->iDestr; - - if ((iRow < (mng_int32)pData->iUpdatetop) || (pData->iUpdatebottom == 0)) - pData->iUpdatetop = iRow; - - if (iRow+1 > (mng_int32)pData->iUpdatebottom) - pData->iUpdatebottom = iRow+1; - - return; -} - -/* ************************************************************************** */ - -mng_retcode display_rgb8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iA16; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint8 iA8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - - pScanline += (pData->iColinc * 3); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - - pScanline += (pData->iColinc * 3); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iA16 = mng_get_uint16 (pDataline+6); - - if (iA16) /* any opacity at all ? */ - { - if (iA16 == 0xFFFF) /* fully opaque ? */ - { /* scale down by dropping the LSB */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - } - else - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*pScanline ); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*(pScanline+2)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iFGr16 >> 8); - *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); - } - } - - pScanline += (pData->iColinc * 3); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iA8 = *(pDataline+3); /* get alpha value */ - - if (iA8) /* any opacity at all ? */ - { - if (iA8 == 0xFF) /* fully opaque ? */ - { /* then simply copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - } - else - { /* do alpha composing */ - MNG_COMPOSE8 (*pScanline, *pDataline, iA8, *pScanline ) - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iA8, *(pScanline+2)) - } - } - - pScanline += (pData->iColinc * 3); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_rgba8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iFGa16, iBGa16, iCa16; - mng_uint8 iFGa8, iBGa8, iCa8; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint16 iCr16, iCg16, iCb16; - mng_uint8 iCr8, iCg8, iCb8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - *(pScanline+3) = *(pDataline+6); - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *(pDataline+3); - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - iFGa16 = mng_get_uint16 (pDataline+6); - iBGa16 = (mng_uint16)(*(pScanline+3)); - iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; - - if (iFGa16) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) - { /* plain copy it */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - *(pScanline+3) = *(pDataline+6); - } - else - { - if (iBGa16 == 0xFFFF) /* background fully opaque ? */ - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*pScanline ); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*(pScanline+2)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iFGr16 >> 8); - *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); - /* alpha remains fully opaque !!! */ - } - else - { /* scale background up */ - iBGr16 = (mng_uint16)(*pScanline ); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*(pScanline+2)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* let's blend */ - MNG_BLEND16 (mng_get_uint16 (pDataline ), - mng_get_uint16 (pDataline+2), - mng_get_uint16 (pDataline+4), iFGa16, - iBGr16, iBGg16, iBGb16, iBGa16, - iCr16, iCg16, iCb16, iCa16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iCr16 >> 8); - *(pScanline+1) = (mng_uint8)(iCg16 >> 8); - *(pScanline+2) = (mng_uint8)(iCb16 >> 8); - *(pScanline+3) = (mng_uint8)(iCa16 >> 8); - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iFGa8 = *(pDataline+3); /* get alpha values */ - iBGa8 = *(pScanline+3); - - if (iFGa8) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa8 == 0xFF) || (iBGa8 == 0)) - { /* then simply copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *(pDataline+3); - } - else - { - if (iBGa8 == 0xFF) /* background fully opaque ? */ - { /* do alpha composing */ - MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ) - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)) - /* alpha remains fully opaque !!! */ - } - else - { /* now blend */ - MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, - *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, - iCr8, iCg8, iCb8, iCa8) - /* and return the composed values */ - *pScanline = iCr8; - *(pScanline+1) = iCg8; - *(pScanline+2) = iCb8; - *(pScanline+3) = iCa8; - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_argb8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iFGa16, iBGa16, iCa16; - mng_uint8 iFGa8, iBGa8, iCa8; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint16 iCr16, iCg16, iCb16; - mng_uint8 iCr8, iCg8, iCb8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START) -#endif - - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *(pDataline+6); - *(pScanline+1) = *pDataline; - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *(pDataline+4); - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *(pDataline+3); - *(pScanline+1) = *pDataline; - *(pScanline+2) = *(pDataline+1); - *(pScanline+3) = *(pDataline+2); - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - iFGa16 = mng_get_uint16 (pDataline+6); - iBGa16 = (mng_uint16)(*pScanline); - iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; - - if (iFGa16) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) - { /* plain copy it */ - *pScanline = *(pDataline+6); - *(pScanline+1) = *pDataline; - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *(pDataline+4); - } - else - { - if (iBGa16 == 0xFFFF) /* background fully opaque ? */ - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+1)); - iBGg16 = (mng_uint16)(*(pScanline+2)); - iBGb16 = (mng_uint16)(*(pScanline+3)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16) - /* and return the composed values */ - /* alpha remains fully opaque !!! */ - *(pScanline+1) = (mng_uint8)(iFGr16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+3) = (mng_uint8)(iFGb16 >> 8); - } - else - { /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+1)); - iBGg16 = (mng_uint16)(*(pScanline+2)); - iBGb16 = (mng_uint16)(*(pScanline+3)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* let's blend */ - MNG_BLEND16 (mng_get_uint16 (pDataline ), - mng_get_uint16 (pDataline+2), - mng_get_uint16 (pDataline+4), iFGa16, - iBGr16, iBGg16, iBGb16, iBGa16, - iCr16, iCg16, iCb16, iCa16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iCa16 >> 8); - *(pScanline+1) = (mng_uint8)(iCr16 >> 8); - *(pScanline+2) = (mng_uint8)(iCg16 >> 8); - *(pScanline+3) = (mng_uint8)(iCb16 >> 8); - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iFGa8 = *(pDataline+3); /* get alpha values */ - iBGa8 = *pScanline; - - if (iFGa8) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa8 == 0xFF) || (iBGa8 == 0)) - { /* then simply copy the values */ - *pScanline = *(pDataline+3); - *(pScanline+1) = *pDataline; - *(pScanline+2) = *(pDataline+1); - *(pScanline+3) = *(pDataline+2); - } - else - { - if (iBGa8 == 0xFF) /* background fully opaque ? */ - { /* do simple alpha composing */ - /* alpha itself remains fully opaque !!! */ - MNG_COMPOSE8 (*(pScanline+1), *pDataline, iFGa8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)) - MNG_COMPOSE8 (*(pScanline+3), *(pDataline+2), iFGa8, *(pScanline+3)) - } - else - { /* now blend */ - MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, - *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, - iCr8, iCg8, iCb8, iCa8) - /* and return the composed values */ - *pScanline = iCa8; - *(pScanline+1) = iCr8; - *(pScanline+2) = iCg8; - *(pScanline+3) = iCb8; - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_rgb8_a8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pAlphaline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iFGa16, iBGa16, iCa16; - mng_uint8 iFGa8, iBGa8, iCa8; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint16 iCr16, iCg16, iCb16; - mng_uint8 iCr8, iCg8, iCb8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination rows */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination rows starting-point */ - pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); - pAlphaline = pAlphaline + pData->iCol + pData->iDestl; - - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - *pAlphaline = *(pDataline+6); - - pScanline += (pData->iColinc * 3); - pAlphaline += pData->iColinc; - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - *pAlphaline = *(pDataline+3); - - pScanline += (pData->iColinc * 3); - pAlphaline += pData->iColinc; - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - iFGa16 = mng_get_uint16 (pDataline+6); - iBGa16 = (mng_uint16)(*pAlphaline); - iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; - - if (iFGa16) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) - { /* plain copy it */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+4); - *pAlphaline = *(pDataline+6); - } - else - { - if (iBGa16 == 0xFFFF) /* background fully opaque ? */ - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*pScanline ); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*(pScanline+2)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iFGr16 >> 8); - *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); - /* alpha remains fully opaque !!! */ - } - else - { /* scale background up */ - iBGr16 = (mng_uint16)(*pScanline ); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*(pScanline+2)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* let's blend */ - MNG_BLEND16 (mng_get_uint16 (pDataline ), - mng_get_uint16 (pDataline+2), - mng_get_uint16 (pDataline+4), iFGa16, - iBGr16, iBGg16, iBGb16, iBGa16, - iCr16, iCg16, iCb16, iCa16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iCr16 >> 8); - *(pScanline+1) = (mng_uint8)(iCg16 >> 8); - *(pScanline+2) = (mng_uint8)(iCb16 >> 8); - *pAlphaline = (mng_uint8)(iCa16 >> 8); - } - } - } - - pScanline += (pData->iColinc * 3); - pAlphaline += pData->iColinc; - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iFGa8 = *(pDataline+3); /* get alpha values */ - iBGa8 = *pAlphaline; - - if (iFGa8) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa8 == 0xFF) || (iBGa8 == 0)) - { /* then simply copy the values */ - *pScanline = *pDataline; - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *(pDataline+2); - *pAlphaline = *(pDataline+3); - } - else - { - if (iBGa8 == 0xFF) /* background fully opaque ? */ - { /* do alpha composing */ - MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ) - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)) - /* alpha remains fully opaque !!! */ - } - else - { /* now blend */ - MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, - *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, - iCr8, iCg8, iCb8, iCa8) - /* and return the composed values */ - *pScanline = iCr8; - *(pScanline+1) = iCg8; - *(pScanline+2) = iCb8; - *pAlphaline = iCa8; - } - } - } - - pScanline += (pData->iColinc * 3); - pAlphaline += pData->iColinc; - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_bgr8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iA16; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint8 iA8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 8; - else - pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *(pDataline+4); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *pDataline; - - pScanline += (pData->iColinc * 3); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *(pDataline+2); - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *pDataline; - - pScanline += (pData->iColinc * 3); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha value */ - iA16 = mng_get_uint16 (pDataline+6); - - if (iA16) /* any opacity at all ? */ - { - if (iA16 == 0xFFFF) /* fully opaque ? */ - { /* scale down by dropping the LSB */ - *pScanline = *(pDataline+4); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *pDataline; - } - else - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+2)); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*pScanline ); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iFGb16 >> 8); - *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); - } - } - - pScanline += (pData->iColinc * 3); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iA8 = *(pDataline+3); /* get alpha value */ - - if (iA8) /* any opacity at all ? */ - { - if (iA8 == 0xFF) /* fully opaque ? */ - { /* then simply copy the values */ - *pScanline = *(pDataline+2); - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *pDataline; - } - else - { /* do alpha composing */ - MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ) - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)) - } - } - - pScanline += (pData->iColinc * 3); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_bgra8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iFGa16, iBGa16, iCa16; - mng_uint8 iFGa8, iBGa8, iCa8; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint16 iCr16, iCg16, iCb16; - mng_uint8 iCr8, iCg8, iCb8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *(pDataline+4); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *pDataline; - *(pScanline+3) = *(pDataline+6); - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *(pDataline+2); - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *pDataline; - *(pScanline+3) = *(pDataline+3); - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - iFGa16 = mng_get_uint16 (pDataline+6); - iBGa16 = (mng_uint16)(*(pScanline+3)); - iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; - - if (iFGa16) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) - { /* plain copy it */ - *pScanline = *(pDataline+4); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *pDataline; - *(pScanline+3) = *(pDataline+6); - } - else - { - if (iBGa16 == 0xFFFF) /* background fully opaque ? */ - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+2)); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*pScanline ); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iFGb16 >> 8); - *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); - /* alpha remains fully opaque !!! */ - } - else - { /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+2)); - iBGg16 = (mng_uint16)(*(pScanline+1)); - iBGb16 = (mng_uint16)(*pScanline ); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* let's blend */ - MNG_BLEND16 (mng_get_uint16 (pDataline ), - mng_get_uint16 (pDataline+2), - mng_get_uint16 (pDataline+4), iFGa16, - iBGr16, iBGg16, iBGb16, iBGa16, - iCr16, iCg16, iCb16, iCa16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iCb16 >> 8); - *(pScanline+1) = (mng_uint8)(iCg16 >> 8); - *(pScanline+2) = (mng_uint8)(iCr16 >> 8); - *(pScanline+3) = (mng_uint8)(iCa16 >> 8); - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iFGa8 = *(pDataline+3); /* get alpha values */ - iBGa8 = *(pScanline+3); - - if (iFGa8) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa8 == 0xFF) || (iBGa8 == 0)) - { /* then simply copy the values */ - *pScanline = *(pDataline+2); - *(pScanline+1) = *(pDataline+1); - *(pScanline+2) = *pDataline; - *(pScanline+3) = *(pDataline+3); - } - else - { - if (iBGa8 == 0xFF) /* background fully opaque ? */ - { /* do alpha composing */ - MNG_COMPOSE8 (*pScanline, *(pDataline+2), iFGa8, *pScanline ) - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *pDataline, iFGa8, *(pScanline+2)) - /* alpha remains fully opaque !!! */ - } - else - { /* now blend */ - MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, - *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, - iCr8, iCg8, iCb8, iCa8) - /* and return the composed values */ - *pScanline = iCb8; - *(pScanline+1) = iCg8; - *(pScanline+2) = iCr8; - *(pScanline+3) = iCa8; - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_bgra8_pm (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint32 s, t; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - if ((s = pDataline[6]) == 0) - *(mng_uint32*) pScanline = 0; /* set all components = 0 */ - else - { - if (s == 255) - { - pScanline[0] = pDataline[4]; - pScanline[1] = pDataline[2]; - pScanline[2] = pDataline[0]; - pScanline[3] = 255; - } - else - { - pScanline[0] = DIV255B8(s * pDataline[4]); - pScanline[1] = DIV255B8(s * pDataline[2]); - pScanline[2] = DIV255B8(s * pDataline[0]); - pScanline[3] = (mng_uint8)s; - } - } - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values and premultiply */ - if ((s = pDataline[3]) == 0) - *(mng_uint32*) pScanline = 0; /* set all components = 0 */ - else - { - if (s == 255) - { - pScanline[0] = pDataline[2]; - pScanline[1] = pDataline[1]; - pScanline[2] = pDataline[0]; - pScanline[3] = 255; - } - else - { - pScanline[0] = DIV255B8(s * pDataline[2]); - pScanline[1] = DIV255B8(s * pDataline[1]); - pScanline[2] = DIV255B8(s * pDataline[0]); - pScanline[3] = (mng_uint8)s; - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - if ((s = pDataline[6]) != 0) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if (s == 255) - { /* plain copy it */ - pScanline[0] = pDataline[4]; - pScanline[1] = pDataline[2]; - pScanline[2] = pDataline[0]; - pScanline[3] = 255; - } - else - { /* now blend (premultiplied) */ - t = 255 - s; - pScanline[0] = DIV255B8(s * pDataline[4] + t * pScanline[0]); - pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); - pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); - pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - if ((s = pDataline[3]) != 0) /* any opacity at all ? */ - { /* fully opaque ? */ - if (s == 255) - { /* then simply copy the values */ - pScanline[0] = pDataline[2]; - pScanline[1] = pDataline[1]; - pScanline[2] = pDataline[0]; - pScanline[3] = 255; - } - else - { /* now blend (premultiplied) */ - t = 255 - s; - pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); - pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); - pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); - pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode display_abgr8 (mng_datap pData) -{ - mng_uint8p pScanline; - mng_uint8p pDataline; - mng_int32 iX; - mng_uint16 iFGa16, iBGa16, iCa16; - mng_uint8 iFGa8, iBGa8, iCa8; - mng_uint16 iFGr16, iFGg16, iFGb16; - mng_uint16 iBGr16, iBGg16, iBGb16; - mng_uint16 iCr16, iCg16, iCb16; - mng_uint8 iCr8, iCg8, iCb8; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START) -#endif - /* viewable row ? */ - if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) - { /* address destination row */ - pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), - pData->iRow + pData->iDestt - - pData->iSourcet); - /* adjust destination row starting-point */ - pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); - pDataline = pData->pRGBArow; /* address source row */ - - if (pData->bIsRGBA16) /* adjust source row starting-point */ - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); - else - pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); - - if (pData->bIsOpaque) /* forget about transparency ? */ - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* scale down by dropping the LSB */ - *pScanline = *(pDataline+6); - *(pScanline+1) = *(pDataline+4); - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *pDataline; - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* copy the values */ - *pScanline = *(pDataline+3); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+1); - *(pScanline+3) = *pDataline; - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - else - { - if (pData->bIsRGBA16) /* 16-bit input row ? */ - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { /* get alpha values */ - iFGa16 = mng_get_uint16 (pDataline+6); - iBGa16 = (mng_uint16)(*pScanline); - iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; - - if (iFGa16) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) - { /* plain copy it */ - *pScanline = *(pDataline+6); - *(pScanline+1) = *(pDataline+4); - *(pScanline+2) = *(pDataline+2); - *(pScanline+3) = *pDataline; - } - else - { - if (iBGa16 == 0xFFFF) /* background fully opaque ? */ - { /* get the proper values */ - iFGr16 = mng_get_uint16 (pDataline ); - iFGg16 = mng_get_uint16 (pDataline+2); - iFGb16 = mng_get_uint16 (pDataline+4); - /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+3)); - iBGg16 = (mng_uint16)(*(pScanline+2)); - iBGb16 = (mng_uint16)(*(pScanline+1)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* now compose */ - MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16) - MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16) - MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16) - /* and return the composed values */ - /* alpha itself remains fully opaque !!! */ - *(pScanline+1) = (mng_uint8)(iFGb16 >> 8); - *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); - *(pScanline+3) = (mng_uint8)(iFGr16 >> 8); - } - else - { /* scale background up */ - iBGr16 = (mng_uint16)(*(pScanline+3)); - iBGg16 = (mng_uint16)(*(pScanline+2)); - iBGb16 = (mng_uint16)(*(pScanline+1)); - iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; - iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; - iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; - /* let's blend */ - MNG_BLEND16 (mng_get_uint16 (pDataline ), - mng_get_uint16 (pDataline+2), - mng_get_uint16 (pDataline+4), iFGa16, - iBGr16, iBGg16, iBGb16, iBGa16, - iCr16, iCg16, iCb16, iCa16) - /* and return the composed values */ - *pScanline = (mng_uint8)(iCa16 >> 8); - *(pScanline+1) = (mng_uint8)(iCb16 >> 8); - *(pScanline+2) = (mng_uint8)(iCg16 >> 8); - *(pScanline+3) = (mng_uint8)(iCr16 >> 8); - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 8; - } - } - else - { - for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; iX += pData->iColinc) - { - iFGa8 = *(pDataline+3); /* get alpha values */ - iBGa8 = *pScanline; - - if (iFGa8) /* any opacity at all ? */ - { /* fully opaque or background fully transparent ? */ - if ((iFGa8 == 0xFF) || (iBGa8 == 0)) - { /* then simply copy the values */ - *pScanline = *(pDataline+3); - *(pScanline+1) = *(pDataline+2); - *(pScanline+2) = *(pDataline+1); - *(pScanline+3) = *pDataline; - } - else - { - if (iBGa8 == 0xFF) /* background fully opaque ? */ - { /* do simple alpha composing */ - /* alpha itself remains fully opaque !!! */ - MNG_COMPOSE8 (*(pScanline+1), *(pDataline+2), iFGa8, *(pScanline+1)) - MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)) - MNG_COMPOSE8 (*(pScanline+3), *pDataline, iFGa8, *(pScanline+3)) - } - else - { /* now blend */ - MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, - *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, - iCr8, iCg8, iCb8, iCa8) - /* and return the composed values */ - *pScanline = iCa8; - *(pScanline+1) = iCb8; - *(pScanline+2) = iCg8; - *(pScanline+3) = iCr8; - } - } - } - - pScanline += (pData->iColinc << 2); - pDataline += 4; - } - } - } - } - - check_update_region (pData); - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Background restore routines - restore the background with info from * */ -/* * the BACK and/or bKGD chunk or the app's background canvas * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode restore_bkgd_backimage (mng_datap pData) -{ - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_START) -#endif - /* make it easy on yourself */ - iRetcode = restore_bkgd_backcolor (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - - - /* TODO: loading the background-image */ - - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode restore_bkgd_backcolor (mng_datap pData) -{ - mng_int32 iX; - mng_uint8p pWork = pData->pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_START) -#endif - - for (iX = pData->iSourcel; iX < pData->iSourcer; iX++) - { /* ok; drop the background-color in there */ - *pWork = (mng_uint8)(pData->iBACKred >> 8); - *(pWork+1) = (mng_uint8)(pData->iBACKgreen >> 8); - *(pWork+2) = (mng_uint8)(pData->iBACKblue >> 8); - *(pWork+3) = 0xFF; /* opaque! it's mandatory */ - - pWork += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode restore_bkgd_bkgd (mng_datap pData) -{ - mng_int32 iX; - mng_uint8p pWork = pData->pRGBArow; - mng_imagep pImage; - mng_imagedatap pBuf; - mng_uint8 iRed = 0; - mng_uint8 iGreen = 0; - mng_uint8 iBlue = 0; - - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_START) -#endif - /* determine the correct image buffer */ - pImage = (mng_imagep)pData->pCurrentobj; - - if (!pImage) - pImage = (mng_imagep)pData->pObjzero; - - pBuf = pImage->pImgbuf; - - switch (pBuf->iColortype) - { - case 0 : ; /* gray types */ - case 4 : { - mng_uint8 iGray; - - if (pBuf->iBitdepth > 8) - iGray = (mng_uint8)(pBuf->iBKGDgray >> 8); - else - { - iGray = (mng_uint8)pBuf->iBKGDgray; - /* please note how tricky the next code is !! */ - switch (pBuf->iBitdepth) - { - case 1 : iGray = (mng_uint8)((iGray << 1) + iGray); - case 2 : iGray = (mng_uint8)((iGray << 2) + iGray); - case 4 : iGray = (mng_uint8)((iGray << 4) + iGray); - } - } - - iRed = iGray; - iGreen = iGray; - iBlue = iGray; - - break; - } - - case 3 : { /* indexed type */ - iRed = pBuf->aPLTEentries [pBuf->iBKGDindex].iRed; - iGreen = pBuf->aPLTEentries [pBuf->iBKGDindex].iGreen; - iBlue = pBuf->aPLTEentries [pBuf->iBKGDindex].iBlue; - - break; - } - - case 2 : ; /* rgb types */ - case 6 : { - if (pBuf->iBitdepth > 8) - { - iRed = (mng_uint8)(pBuf->iBKGDred >> 8); - iGreen = (mng_uint8)(pBuf->iBKGDgreen >> 8); - iBlue = (mng_uint8)(pBuf->iBKGDblue >> 8); - } - else - { - iRed = (mng_uint8)(pBuf->iBKGDred ); - iGreen = (mng_uint8)(pBuf->iBKGDgreen); - iBlue = (mng_uint8)(pBuf->iBKGDblue ); - } - - break; - } - } - - for (iX = pData->iSourcel; iX < pData->iSourcer; iX++) - { - *pWork = iRed; - *(pWork+1) = iGreen; - *(pWork+2) = iBlue; - *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ - - pWork += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode restore_bkgd_bgcolor (mng_datap pData) -{ - mng_int32 iX; - mng_uint8p pWork = pData->pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_START) -#endif - - for (iX = pData->iSourcel; iX < pData->iSourcer; iX++) - { /* ok; drop the background-color in there */ - *pWork = (mng_uint8)(pData->iBGred >> 8); - *(pWork+1) = (mng_uint8)(pData->iBGgreen >> 8); - *(pWork+2) = (mng_uint8)(pData->iBGblue >> 8); - *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ - - pWork += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode restore_bkgd_rgb8 (mng_datap pData) -{ - mng_int32 iX; - mng_uint8p pBkgd; - mng_uint8p pWork = pData->pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_START) -#endif - - if (pData->fGetbkgdline) /* can we access the background ? */ - { /* point to the right pixel then */ - pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, - pData->iRow + pData->iDestt) + - (3 * pData->iDestl); - - for (iX = pData->iSourcel; iX < pData->iSourcer; iX++) - { - *pWork = *pBkgd; /* ok; copy the pixel */ - *(pWork+1) = *(pBkgd+1); - *(pWork+2) = *(pBkgd+2); - *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ - - pWork += 4; - pBkgd += 3; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode restore_bkgd_bgr8 (mng_datap pData) -{ - mng_int32 iX; - mng_uint8p pBkgd; - mng_uint8p pWork = pData->pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_START) -#endif - - if (pData->fGetbkgdline) /* can we access the background ? */ - { /* point to the right pixel then */ - pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, - pData->iRow + pData->iDestt) + - (3 * pData->iDestl); - - for (iX = pData->iSourcel; iX < pData->iSourcer; iX++) - { - *pWork = *(pBkgd+2); /* ok; copy the pixel */ - *(pWork+1) = *(pBkgd+1); - *(pWork+2) = *pBkgd; - *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ - - pWork += 4; - pBkgd += 3; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Row retrieval routines - retrieve processed & uncompressed row-data * */ -/* * from the current "object" * */ -/* * * */ -/* ************************************************************************** */ - -/* TODO: a serious optimization is to retrieve only those pixels that will - actually be displayed; this would require changes in - the "display_image" routine (in mng_display.c) & - all the "retrieve_xxx" routines below & - the "display_xxx" routines above !!!!! - NOTE that "correct_xxx" routines would not require modification */ - -mng_retcode retrieve_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iG; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_START) -#endif - - pRGBArow = pData->pRGBArow; /* temporary work pointers */ - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - if (pBuf->bHasTRNS) /* tRNS in buffer ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = *pWorkrow; /* get the gray-value */ - /* is it transparent ? */ - if ((mng_uint16)iG == pBuf->iTRNSgray) - { - *pRGBArow = 0x00; /* nuttin to display */ - *(pRGBArow+1) = 0x00; - *(pRGBArow+2) = 0x00; - *(pRGBArow+3) = 0x00; - } - else - { - switch (pBuf->iBitdepth) /* LBR to 8-bits ! */ - { - case 1 : iG = (mng_uint8)((iG << 1) + iG); - case 2 : iG = (mng_uint8)((iG << 2) + iG); - case 4 : iG = (mng_uint8)((iG << 4) + iG); - } - - *pRGBArow = iG; /* put in intermediate row */ - *(pRGBArow+1) = iG; - *(pRGBArow+2) = iG; - *(pRGBArow+3) = 0xFF; - } - - pWorkrow++; /* next pixel */ - pRGBArow += 4; - } - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = *pWorkrow; /* get the gray-value */ - - switch (pBuf->iBitdepth) /* LBR to 8-bits ! */ - { - case 1 : iG = (mng_uint8)((iG << 1) + iG); - case 2 : iG = (mng_uint8)((iG << 2) + iG); - case 4 : iG = (mng_uint8)((iG << 4) + iG); - } - - *pRGBArow = iG; /* put in intermediate row */ - *(pRGBArow+1) = iG; - *(pRGBArow+2) = iG; - *(pRGBArow+3) = 0xFF; - - pWorkrow++; /* next pixel */ - pRGBArow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_g16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iG; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_START) -#endif - /* temporary work pointers */ - pRGBArow = pData->pRGBArow; - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - if (pBuf->bHasTRNS) /* tRNS in buffer ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ - /* is it transparent ? */ - if (iG == pBuf->iTRNSgray) - { /* nuttin to display */ - mng_put_uint16 (pRGBArow, 0x0000); - mng_put_uint16 (pRGBArow+2, 0x0000); - mng_put_uint16 (pRGBArow+4, 0x0000); - mng_put_uint16 (pRGBArow+6, 0x0000); - } - else - { /* put in intermediate row */ - mng_put_uint16 (pRGBArow, iG); - mng_put_uint16 (pRGBArow+2, iG); - mng_put_uint16 (pRGBArow+4, iG); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - } - - pWorkrow += 2; /* next pixel */ - pRGBArow += 8; - } - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ - - mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ - mng_put_uint16 (pRGBArow+2, iG); - mng_put_uint16 (pRGBArow+4, iG); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - - pWorkrow += 2; /* next pixel */ - pRGBArow += 8; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iR, iG, iB; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_START) -#endif - - pRGBArow = pData->pRGBArow; /* temporary work pointers */ - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - if (pBuf->bHasTRNS) /* tRNS in buffer ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iR = *pWorkrow; /* get the rgb-values */ - iG = *(pWorkrow+1); - iB = *(pWorkrow+2); - /* is it transparent ? */ - if (((mng_uint16)iR == pBuf->iTRNSred ) && - ((mng_uint16)iG == pBuf->iTRNSgreen) && - ((mng_uint16)iB == pBuf->iTRNSblue ) ) - { - *pRGBArow = 0x00; /* nothing to display */ - *(pRGBArow+1) = 0x00; - *(pRGBArow+2) = 0x00; - *(pRGBArow+3) = 0x00; - } - else - { - *pRGBArow = iR; /* put in intermediate row */ - *(pRGBArow+1) = iG; - *(pRGBArow+2) = iB; - *(pRGBArow+3) = 0xFF; - } - - pWorkrow += 3; /* next pixel */ - pRGBArow += 4; - } - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pRGBArow = *pWorkrow; /* just copy the pixel */ - *(pRGBArow+1) = *(pWorkrow+1); - *(pRGBArow+2) = *(pWorkrow+2); - *(pRGBArow+3) = 0xFF; - - pWorkrow += 3; /* next pixel */ - pRGBArow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_rgb16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iR, iG, iB; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_START) -#endif - /* temporary work pointers */ - pRGBArow = pData->pRGBArow; - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - if (pBuf->bHasTRNS) /* tRNS in buffer ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iR = mng_get_uint16 (pWorkrow); /* get the rgb-values */ - iG = mng_get_uint16 (pWorkrow+2); - iB = mng_get_uint16 (pWorkrow+4); - /* is it transparent ? */ - if ((iR == pBuf->iTRNSred ) && - (iG == pBuf->iTRNSgreen) && - (iB == pBuf->iTRNSblue ) ) - { /* nothing to display */ - mng_put_uint16 (pRGBArow, 0x0000); - mng_put_uint16 (pRGBArow+2, 0x0000); - mng_put_uint16 (pRGBArow+4, 0x0000); - mng_put_uint16 (pRGBArow+6, 0x0000); - } - else - { /* put in intermediate row */ - mng_put_uint16 (pRGBArow, iR); - mng_put_uint16 (pRGBArow+2, iG); - mng_put_uint16 (pRGBArow+4, iB); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - } - - pWorkrow += 6; /* next pixel */ - pRGBArow += 8; - } - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* just copy the pixel */ - mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); - mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); - mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - - pWorkrow += 6; /* next pixel */ - pRGBArow += 8; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_idx8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_START) -#endif - - pRGBArow = pData->pRGBArow; /* temporary work pointers */ - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - if (pBuf->bHasTRNS) /* tRNS in buffer ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iQ = *pWorkrow; /* get the index */ - /* is it valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - /* transparency for this index ? */ - if ((mng_uint32)iQ < pBuf->iTRNScount) - *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; - else - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pWorkrow++; /* next pixel */ - pRGBArow += 4; - } - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iQ = *pWorkrow; /* get the index */ - /* is it valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pWorkrow++; /* next pixel */ - pRGBArow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_ga8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iG; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_START) -#endif - - pRGBArow = pData->pRGBArow; /* temporary work pointers */ - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = *pWorkrow; /* get the gray-value */ - *pRGBArow = iG; /* put in intermediate row */ - *(pRGBArow+1) = iG; - *(pRGBArow+2) = iG; - *(pRGBArow+3) = *(pWorkrow+1); - - pWorkrow += 2; /* next pixel */ - pRGBArow += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_ga16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iG; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pRGBArow = pData->pRGBArow; - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ - - mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ - mng_put_uint16 (pRGBArow+2, iG); - mng_put_uint16 (pRGBArow+4, iG); - mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); - - pWorkrow += 4; /* next pixel */ - pRGBArow += 8; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_rgba8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_START) -#endif - - pRGBArow = pData->pRGBArow; /* temporary work pointers */ - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - /* can't be easier than this ! */ - MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode retrieve_rgba16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pRGBArow = pData->pRGBArow; - pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); - /* can't be easier than this ! */ - MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Row storage routines - store processed & uncompressed row-data * */ -/* * into the current "object" * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode store_g1 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it white ? */ - *pOutrow = 0x01; /* white */ - else - *pOutrow = 0x00; /* black */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_g2 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_g4 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - - iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_g16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* copy into object buffer */ - mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); - - pOutrow += (pData->iColinc << 1); /* next pixel */ - pWorkrow += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* copy the RGB bytes */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - - pWorkrow += 3; /* next pixel */ - pOutrow += (pData->iColinc * 3); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_rgb16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - MNG_COPY (pOutrow, pWorkrow, 6) /* copy the RGB bytes */ - - pWorkrow += 6; /* next pixel */ - pOutrow += (pData->iColinc * 6); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_idx1 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* store the index */ - *pOutrow = 0x01; - else - *pOutrow = 0x00; - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_idx2 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* store the index */ - *pOutrow = (mng_uint8)((iB & iM) >> iS); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_idx4 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* store the index */ - *pOutrow = (mng_uint8)((iB & iM) >> iS); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_idx8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_ga8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* copy the GA bytes */ - *(pOutrow+1) = *(pWorkrow+1); - - pWorkrow += 2; /* next pixel */ - pOutrow += (pData->iColinc << 1); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_ga16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - MNG_COPY (pOutrow, pWorkrow, 4) /* copy the GA bytes */ - - pWorkrow += 4; /* next pixel */ - pOutrow += (pData->iColinc << 2); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_rgba8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* copy the RGBA bytes */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - *(pOutrow+3) = *(pWorkrow+3); - - pWorkrow += 4; /* next pixel */ - pOutrow += (pData->iColinc << 2); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode store_rgba16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - MNG_COPY (pOutrow, pWorkrow, 8) /* copy the RGBA bytes */ - - pWorkrow += 8; /* next pixel */ - pOutrow += (pData->iColinc << 3); - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Row storage routines (JPEG) - store processed & uncompressed row-data * */ -/* * into the current "object" * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_START) -#endif - - pWorkrow = pData->pJPEGrow; /* temporary work pointers */ - pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); - /* easy as pie ... */ - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_END) -#endif - - return next_jpeg_row (pData); /* we've got one more row of gray-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_START) -#endif - - pWorkrow = pData->pJPEGrow; /* temporary work pointers */ - pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); - /* easy as pie ... */ - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_END) -#endif - - return next_jpeg_row (pData); /* we've got one more row of rgb-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_ga8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_START) -#endif - - pWorkrow = pData->pJPEGrow; /* temporary work pointers */ - pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* copy into object buffer */ - - pOutrow += 2; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_END) -#endif - - return next_jpeg_row (pData); /* we've got one more row of gray-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgba8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_START) -#endif - - pWorkrow = pData->pJPEGrow; /* temporary work pointers */ - pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* copy pixel into object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - - pOutrow += 4; /* next pixel */ - pWorkrow += 3; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_END) -#endif - - return next_jpeg_row (pData); /* we've got one more row of rgb-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_alpha (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pJPEGrow2; - pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 1; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += 2; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_alpha (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pJPEGrow2; - pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 3; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += 4; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_a1 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - iM = 0; /* start at pixel 0 */ - iB = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it opaque ? */ - *pOutrow = 0xFF; /* opaque */ - else - *pOutrow = 0x00; /* transparent */ - - pOutrow += 2; /* next pixel */ - iM >>= 1; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_a2 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - switch ((iB & iM) >> iS) /* determine the alpha level */ - { - case 0x03 : { *pOutrow = 0xFF; break; } - case 0x02 : { *pOutrow = 0xAA; break; } - case 0x01 : { *pOutrow = 0x55; break; } - default : { *pOutrow = 0x00; } - } - - pOutrow += 2; /* next pixel */ - iM >>= 2; - iS -= 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_a4 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the alpha level */ - iQ = (mng_uint8)((iB & iM) >> iS); - iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ - - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += 2; /* next pixel */ - iM >>= 4; - iS -= 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_a8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += 2; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g8_a16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* only high-order byte! */ - - pOutrow += 2; /* next pixel */ - pWorkrow += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_a1 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - iM = 0; /* start at pixel 0 */ - iB = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it opaque ? */ - *pOutrow = 0xFF; /* opaque */ - else - *pOutrow = 0x00; /* transparent */ - - pOutrow += 4; /* next pixel */ - iM >>= 1; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_a2 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - switch ((iB & iM) >> iS) /* determine the alpha level */ - { - case 0x03 : { *pOutrow = 0xFF; break; } - case 0x02 : { *pOutrow = 0xAA; break; } - case 0x01 : { *pOutrow = 0x55; break; } - default : { *pOutrow = 0x00; } - } - - pOutrow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_a4 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the alpha level */ - iQ = (mng_uint8)((iB & iM) >> iS); - iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ - - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_a8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in buffer */ - - pOutrow += 4; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_rgb8_a16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* only high-order byte */ - - pOutrow += 4; /* next pixel */ - pWorkrow += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g12_a1 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 2; - iM = 0; /* start at pixel 0 */ - iB = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* opaque ? */ - mng_put_uint16 (pOutrow, 0xFFFF);/* opaque */ - else - mng_put_uint16 (pOutrow, 0x0000);/* transparent */ - - pOutrow += 4; /* next pixel */ - iM >>= 1; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g12_a2 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 2; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - switch ((iB & iM) >> iS) /* determine the gray level */ - { - case 0x03 : { mng_put_uint16 (pOutrow, 0xFFFF); break; } - case 0x02 : { mng_put_uint16 (pOutrow, 0xAAAA); break; } - case 0x01 : { mng_put_uint16 (pOutrow, 0x5555); break; } - default : { mng_put_uint16 (pOutrow, 0x0000); } - } - - pOutrow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g12_a4 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint16 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 2; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the gray level */ - iQ = (mng_uint16)((iB & iM) >> iS); - iQ = (mng_uint16)(iQ + (iQ << 4)); /* expand to 16-bit by replication */ - iQ = (mng_uint16)(iQ + (iQ << 8)); - /* put in object buffer */ - mng_put_uint16 (pOutrow, iQ); - - pOutrow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g12_a8 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint16 iW; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 2; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iW = (mng_uint16)(*pWorkrow); /* get input byte */ - iW = (mng_uint16)(iW + (iW << 8)); /* expand to 16-bit by replication */ - - mng_put_uint16 (pOutrow, iW); /* put in object buffer */ - - pOutrow += 4; /* next pixel */ - pWorkrow++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -mng_retcode store_jpeg_g12_a16 (mng_datap pData) -{ - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 2; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* copy it */ - mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); - - pOutrow += 4; /* next pixel */ - pWorkrow += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_END) -#endif - - return next_jpeg_alpharow (pData); /* we've got one more row of alpha-samples */ -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ -/* * * */ -/* * Delta-image row routines - apply the processed & uncompressed row-data * */ -/* * onto the target "object" * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode delta_g1 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it white ? */ - *pOutrow = 0xFF; /* white */ - else - *pOutrow = 0x00; /* black */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* invert if it is white ? */ - *pOutrow = (mng_uint8)(*pOutrow ^ 0xFF); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_END) -#endif - - return store_g1 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_g2 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - switch ((iB & iM) >> iS) /* determine the gray level */ - { - case 0x03 : { *pOutrow = 0xFF; break; } - case 0x02 : { *pOutrow = 0xAA; break; } - case 0x01 : { *pOutrow = 0x55; break; } - default : { *pOutrow = 0x00; } - } - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* determine the gray level */ - switch (((*pOutrow >> 6) + ((iB & iM) >> iS)) & 0x03) - { - case 0x03 : { *pOutrow = 0xFF; break; } - case 0x02 : { *pOutrow = 0xAA; break; } - case 0x01 : { *pOutrow = 0x55; break; } - default : { *pOutrow = 0x00; } - } - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_END) -#endif - - return store_g2 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_g4 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the gray level */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* expand to 8-bit by replication */ - iQ = (mng_uint8)(iQ + (iQ << 4)); - - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the gray level */ - iQ = (mng_uint8)(((*pOutrow >> 4) + ((iB & iM) >> iS)) & 0x0F); - /* expand to 8-bit by replication */ - iQ = (mng_uint8)(iQ + (iQ << 4)); - - *pOutrow = iQ; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_END) -#endif - - return store_g4 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_END) -#endif - - return store_g8 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_g16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - /* next pixel */ - pOutrow += (pData->iColinc << 1); - pWorkrow += 2; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow) )); - /* next pixel */ - pOutrow += (pData->iColinc << 1); - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_END) -#endif - - return store_g16 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - /* next pixel */ - pOutrow += (pData->iColinc * 3); - pWorkrow += 3; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); - *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); - *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); - /* next pixel */ - pOutrow += (pData->iColinc * 3); - pWorkrow += 3; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_END) -#endif - - return store_rgb8 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_rgb16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - *(pOutrow+3) = *(pWorkrow+3); - *(pOutrow+4) = *(pWorkrow+4); - *(pOutrow+5) = *(pWorkrow+5); - /* next pixel */ - pOutrow += (pData->iColinc * 6); - pWorkrow += 6; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow ) )); - mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + - mng_get_uint16 (pWorkrow+2) )); - mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + - mng_get_uint16 (pWorkrow+4) )); - /* next pixel */ - pOutrow += (pData->iColinc * 6); - pWorkrow += 6; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_END) -#endif - - return store_rgb16 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_idx1 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* put the right index value */ - *pOutrow = 1; - else - *pOutrow = 0; - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* invert if it is non-zero index */ - *pOutrow = (mng_uint8)(*pOutrow ^ 0x01); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 1; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_END) -#endif - - return store_idx1 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_idx2 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* put the index */ - *pOutrow = (mng_uint8)((iB & iM) >> iS); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* calculate the index */ - *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x03); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 2; - iS -= 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_END) -#endif - - return store_idx2 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_idx4 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* put the index */ - *pOutrow = (mng_uint8)((iB & iM) >> iS); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* calculate the index */ - *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x0F); - - pOutrow += pData->iColinc; /* next pixel */ - iM >>= 4; - iS -= 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_END) -#endif - - return store_idx4 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_idx8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); - - pOutrow += pData->iColinc; /* next pixel */ - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_END) -#endif - - return store_idx8 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_ga8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - /* next pixel */ - pOutrow += (pData->iColinc << 1); - pWorkrow += 2; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); - *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); - /* next pixel */ - pOutrow += (pData->iColinc << 1); - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_END) -#endif - - return store_ga8 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_ga16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - *(pOutrow+3) = *(pWorkrow+3); - /* next pixel */ - pOutrow += (pData->iColinc << 2); - pWorkrow += 4; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow ) )); - mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + - mng_get_uint16 (pWorkrow+2) )); - /* next pixel */ - pOutrow += (pData->iColinc << 2); - pWorkrow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_END) -#endif - - return store_ga16 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; /* put in object buffer */ - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - *(pOutrow+3) = *(pWorkrow+3); - /* next pixel */ - pOutrow += (pData->iColinc << 2); - pWorkrow += 4; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); - *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); - *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); - *(pOutrow+3) = (mng_uint8)(*(pOutrow+3) + *(pWorkrow+3)); - /* next pixel */ - pOutrow += (pData->iColinc << 2); - pWorkrow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_END) -#endif - - return store_rgba8 (pData); -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iDeltaBlocky * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + - (pData->iDeltaBlockx * pBuf->iSamplesize); - /* pixel replace ? */ - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - MNG_COPY (pOutrow, pWorkrow, 8) /* put in object buffer */ - /* next pixel */ - pOutrow += (pData->iColinc << 3); - pWorkrow += 8; - } - } - else - { /* pixel add ! */ - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* add to object buffer */ - mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow ) )); - mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + - mng_get_uint16 (pWorkrow+2) )); - mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + - mng_get_uint16 (pWorkrow+4) )); - mng_put_uint16 (pOutrow+6, (mng_uint16)(mng_get_uint16 (pOutrow+6 ) + - mng_get_uint16 (pWorkrow+6) )); - /* next pixel */ - pOutrow += (pData->iColinc << 3); - pWorkrow += 8; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_END) -#endif - - return store_rgba16 (pData); -} - -/* ************************************************************************** */ -/* * * */ -/* * Delta-image row routines - apply the source row onto the target * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode delta_g1_g1 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0x01); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_g2_g2 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0x03); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_g4_g4 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0x0F); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_g8_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_g16_g16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 1)) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + - mng_get_uint16 (pWorkrow)) & 0xFFFF)); - - pOutrow += 2; - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgb8_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < (pData->iRowsamples * 3); iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgb16_rgb16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples * 6)) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow )) & 0xFFFF)); - mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + - mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); - mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + - mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); - - pOutrow += 6; - pWorkrow += 6; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga8_ga8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 1) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < (pData->iRowsamples << 1); iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga8_g8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; - - pOutrow += 2; - pWorkrow++; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow += 2; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga8_a8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 1; - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; - - pOutrow += 2; - pWorkrow++; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow += 2; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga16_ga16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 2)) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow )) & 0xFFFF)); - mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + - mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); - - pOutrow += 4; - pWorkrow += 4; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga16_g16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); - - pOutrow += 4; - pWorkrow += 2; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + - mng_get_uint16 (pWorkrow)) & 0xFFFF)); - - pOutrow += 4; - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_ga16_a16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow)); - - pOutrow += 4; - pWorkrow += 2; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + - mng_get_uint16 (pWorkrow)) & 0xFFFF)); - - pOutrow += 4; - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba8_rgba8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 2) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < (pData->iRowsamples << 2); iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow++; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba8_rgb8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; - *(pOutrow+1) = *(pWorkrow+1); - *(pOutrow+2) = *(pWorkrow+2); - - pOutrow += 4; - pWorkrow += 3; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow ) & 0xFF); - *(pOutrow+1) = (mng_uint8)(((mng_uint16)*(pOutrow+1) + - (mng_uint16)*(pWorkrow+1)) & 0xFF); - *(pOutrow+2) = (mng_uint8)(((mng_uint16)*(pOutrow+2) + - (mng_uint16)*(pWorkrow+2)) & 0xFF); - - pOutrow += 4; - pWorkrow += 3; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba8_a8 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize) + 3; - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = *pWorkrow; - - pOutrow += 4; - pWorkrow++; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + - (mng_uint16)*pWorkrow) & 0xFF); - - pOutrow += 4; - pWorkrow++; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba16_rgba16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 3)) - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow )) & 0xFFFF)); - mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + - mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); - mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + - mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); - mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + - mng_get_uint16 (pWorkrow+6)) & 0xFFFF)); - - pOutrow += 8; - pWorkrow += 8; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba16_rgb16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow )); - mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow+2)); - mng_put_uint16 (pOutrow+4, mng_get_uint16 (pWorkrow+4)); - - pOutrow += 8; - pWorkrow += 6; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + - mng_get_uint16 (pWorkrow )) & 0xFFFF)); - mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + - mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); - mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + - mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); - - pOutrow += 8; - pWorkrow += 6; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode delta_rgba16_a16 (mng_datap pData) -{ - mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - mng_uint8p pWorkrow; - mng_uint8p pOutrow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_START) -#endif - - pWorkrow = pData->pRGBArow; - pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + - (pData->iCol * pBuf->iSamplesize); - - if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || - (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow+6, mng_get_uint16 (pWorkrow)); - - pOutrow += 8; - pWorkrow += 2; - } - } - else - if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + - mng_get_uint16 (pWorkrow)) & 0xFFFF)); - - pOutrow += 8; - pWorkrow += 2; - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Delta-image row routines - scale the source to bitdepth of target * */ -/* * * */ -/* ************************************************************************** */ - - - -/* ************************************************************************** */ -/* * * */ -/* * Row processing routines - convert uncompressed data from zlib to * */ -/* * managable row-data which serves as input to the color-management * */ -/* * routines * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode process_g1 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - if (pBuf->iTRNSgray) /* white transparent ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it white ? */ - /* transparent ! */ - mng_put_uint32 (pRGBArow, 0x00000000); - else /* opaque black */ - mng_put_uint32 (pRGBArow, 0x000000FF); - - pRGBArow += 4; /* next pixel */ - iM >>= 1; - } - } - else /* black transparent */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it white ? */ - /* opaque white */ - mng_put_uint32 (pRGBArow, 0xFFFFFFFF); - else /* transparent */ - mng_put_uint32 (pRGBArow, 0x00000000); - - pRGBArow += 4; /* next pixel */ - iM >>= 1; - } - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else /* no transparency */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - } - - if (iB & iM) /* is it white ? */ - /* opaque white */ - mng_put_uint32 (pRGBArow, 0xFFFFFFFF); - else /* opaque black */ - mng_put_uint32 (pRGBArow, 0x000000FF); - - pRGBArow += 4; /* next pixel */ - iM >>= 1; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_g2 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* determine gray level */ - iQ = (mng_uint8)((iB & iM) >> iS); - - if (iQ == pBuf->iTRNSgray) /* transparent ? */ - mng_put_uint32 (pRGBArow, 0x00000000); - else - { - switch (iQ) /* determine the gray level */ - { - case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } - case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } - case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } - default : { mng_put_uint32 (pRGBArow, 0x000000FF); } - } - } - - pRGBArow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - - switch ((iB & iM) >> iS) /* determine the gray level */ - { - case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } - case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } - case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } - default : { mng_put_uint32 (pRGBArow, 0x000000FF); } - } - - pRGBArow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_g4 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the gray level */ - iQ = (mng_uint8)((iB & iM) >> iS); - - if (iQ == pBuf->iTRNSgray) /* transparent ? */ - { - *pRGBArow = 0; /* put in intermediate row */ - *(pRGBArow+1) = 0; - *(pRGBArow+2) = 0; - *(pRGBArow+3) = 0; - } - else - { /* expand to 8-bit by replication */ - iQ = (mng_uint8)(iQ + (iQ << 4)); - - *pRGBArow = iQ; /* put in intermediate row */ - *(pRGBArow+1) = iQ; - *(pRGBArow+2) = iQ; - *(pRGBArow+3) = 0xFF; - } - - pRGBArow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the gray level */ - iQ = (mng_uint8)((iB & iM) >> iS); - iQ = (mng_uint8)(iQ + (iQ << 4));/* expand to 8-bit by replication */ - - *pRGBArow = iQ; /* put in intermediate row */ - *(pRGBArow+1) = iQ; - *(pRGBArow+2) = iQ; - *(pRGBArow+3) = 0xFF; - - pRGBArow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_g8 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iB = *pWorkrow; /* get next input-byte */ - - if (iB == pBuf->iTRNSgray) /* transparent ? */ - { - *pRGBArow = 0; /* put in intermediate row */ - *(pRGBArow+1) = 0; - *(pRGBArow+2) = 0; - *(pRGBArow+3) = 0; - } - else - { - *pRGBArow = iB; /* put in intermediate row */ - *(pRGBArow+1) = iB; - *(pRGBArow+2) = iB; - *(pRGBArow+3) = 0xFF; - } - - pRGBArow += 4; /* next pixel */ - pWorkrow++; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iB = *pWorkrow; /* get next input-byte */ - - *pRGBArow = iB; /* put in intermediate row */ - *(pRGBArow+1) = iB; - *(pRGBArow+2) = iB; - *(pRGBArow+3) = 0xFF; - - pRGBArow += 4; /* next pixel */ - pWorkrow++; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_g16 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iW; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iW = mng_get_uint16 (pWorkrow); /* get input */ - - if (iW == pBuf->iTRNSgray) /* transparent ? */ - { /* put in intermediate row */ - mng_put_uint16 (pRGBArow, 0); - mng_put_uint16 (pRGBArow+2, 0); - mng_put_uint16 (pRGBArow+4, 0); - mng_put_uint16 (pRGBArow+6, 0); - } - else - { /* put in intermediate row */ - mng_put_uint16 (pRGBArow, iW); - mng_put_uint16 (pRGBArow+2, iW); - mng_put_uint16 (pRGBArow+4, iW); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - } - - pRGBArow += 8; /* next pixel */ - pWorkrow += 2; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iW = mng_get_uint16 (pWorkrow); /* get input */ - - mng_put_uint16 (pRGBArow, iW); /* and put in intermediate row */ - mng_put_uint16 (pRGBArow+2, iW); - mng_put_uint16 (pRGBArow+4, iW); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - - pRGBArow += 8; /* next pixel */ - pWorkrow += 2; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_rgb8 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iR, iG, iB; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iR = *pWorkrow; /* get the RGB values */ - iG = *(pWorkrow+1); - iB = *(pWorkrow+2); - /* transparent ? */ - if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && - (iB == pBuf->iTRNSblue)) - { - *pRGBArow = 0; /* this pixel is transparent ! */ - *(pRGBArow+1) = 0; - *(pRGBArow+2) = 0; - *(pRGBArow+3) = 0; - } - else - { - *pRGBArow = iR; /* copy the RGB values */ - *(pRGBArow+1) = iG; - *(pRGBArow+2) = iB; - *(pRGBArow+3) = 0xFF; /* this one isn't transparent */ - } - - pWorkrow += 3; /* next pixel */ - pRGBArow += 4; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pRGBArow = *pWorkrow; /* copy the RGB bytes */ - *(pRGBArow+1) = *(pWorkrow+1); - *(pRGBArow+2) = *(pWorkrow+2); - *(pRGBArow+3) = 0xFF; /* no alpha; so always fully opaque */ - - pWorkrow += 3; /* next pixel */ - pRGBArow += 4; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_rgb16 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iR, iG, iB; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iR = mng_get_uint16 (pWorkrow); /* get the RGB values */ - iG = mng_get_uint16 (pWorkrow+2); - iB = mng_get_uint16 (pWorkrow+4); - /* transparent ? */ - if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && - (iB == pBuf->iTRNSblue)) - { /* transparent then */ - mng_put_uint16 (pRGBArow, 0); - mng_put_uint16 (pRGBArow+2, 0); - mng_put_uint16 (pRGBArow+4, 0); - mng_put_uint16 (pRGBArow+6, 0); - } - else - { /* put in intermediate row */ - mng_put_uint16 (pRGBArow, iR); - mng_put_uint16 (pRGBArow+2, iG); - mng_put_uint16 (pRGBArow+4, iB); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - } - - pWorkrow += 6; /* next pixel */ - pRGBArow += 8; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { /* copy the RGB values */ - mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); - mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); - mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); - mng_put_uint16 (pRGBArow+6, 0xFFFF); - - pWorkrow += 6; /* next pixel */ - pRGBArow += 8; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_idx1 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - iS = 7; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - /* transparency for this index ? */ - if ((mng_uint32)iQ < pBuf->iTRNScount) - *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; - else - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 1; - iS -= 1; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0x80; - iS = 7; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 1; - iS -= 1; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_idx2 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - /* transparency for this index ? */ - if ((mng_uint32)iQ < pBuf->iTRNScount) - *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; - else - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = *pWorkrow; /* get next input-byte */ - pWorkrow++; - iM = 0xC0; - iS = 6; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - *pRGBArow = pBuf->aPLTEentries [iQ].iRed; - *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; - *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; - *(pRGBArow+3) = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 2; - iS -= 2; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_idx4 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iB; - mng_uint8 iM; - mng_uint32 iS; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - iM = 0; /* start at pixel 0 */ - iB = 0; - iS = 0; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = pWorkrow [0]; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; - pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; - pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; - /* transparency for this index ? */ - if ((mng_uint32)iQ < pBuf->iTRNScount) - pRGBArow [3] = pBuf->aTRNSentries [iQ]; - else - pRGBArow [3] = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - if (!iM) /* mask underflow ? */ - { - iB = pWorkrow [0]; /* get next input-byte */ - pWorkrow++; - iM = 0xF0; - iS = 4; - } - /* get the index */ - iQ = (mng_uint8)((iB & iM) >> iS); - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; - pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; - pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; - pRGBArow [3] = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - iM >>= 4; - iS -= 4; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_idx8 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint8 iQ; - mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_START) -#endif - - if (!pBuf) /* no object? then use obj 0 */ - pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - if (pBuf->bHasTRNS) /* tRNS encountered ? */ - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iQ = *pWorkrow; /* get input byte */ - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; - pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; - pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; - /* transparency for this index ? */ - if ((mng_uint32)iQ < pBuf->iTRNScount) - pRGBArow [3] = pBuf->aTRNSentries [iQ]; - else - pRGBArow [3] = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - pWorkrow++; - } - - pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ - } - else - { - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iQ = *pWorkrow; /* get input byte */ - /* index valid ? */ - if ((mng_uint32)iQ < pBuf->iPLTEcount) - { /* put in intermediate row */ - pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; - pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; - pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; - pRGBArow [3] = 0xFF; - } - else - MNG_ERROR (pData, MNG_PLTEINDEXERROR) - - pRGBArow += 4; /* next pixel */ - pWorkrow++; - } - - pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_ga8 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - *pRGBArow = *pWorkrow; /* copy the gray value */ - *(pRGBArow+1) = *pWorkrow; - *(pRGBArow+2) = *pWorkrow; - *(pRGBArow+3) = *(pWorkrow+1); /* copy the alpha value */ - - pWorkrow += 2; /* next pixel */ - pRGBArow += 4; - } - - pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_ga16 (mng_datap pData) -{ - mng_uint8p pWorkrow; - mng_uint8p pRGBArow; - mng_int32 iX; - mng_uint16 iW; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_START) -#endif - /* temporary work pointers */ - pWorkrow = pData->pWorkrow + pData->iPixelofs; - pRGBArow = pData->pRGBArow; - - for (iX = 0; iX < pData->iRowsamples; iX++) - { - iW = mng_get_uint16 (pWorkrow); /* copy the gray value */ - mng_put_uint16 (pRGBArow, iW); - mng_put_uint16 (pRGBArow+2, iW); - mng_put_uint16 (pRGBArow+4, iW); - /* copy the alpha value */ - mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); - - pWorkrow += 4; /* next pixel */ - pRGBArow += 8; - } - - pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_rgba8 (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_START) -#endif - /* this is the easiest transform */ - MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize) - - pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode process_rgba16 (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_START) -#endif - /* this is the easiest transform */ - MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize) - - pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ -/* * * */ -/* * Row processing initialization routines - set up the variables needed * */ -/* * to process uncompressed row-data * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode init_g1_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g1; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g1; - else - pData->fStorerow = (mng_fptr)store_g1; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g1; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 7; - pData->iSamplediv = 3; - pData->iRowsize = (pData->iRowsamples + 7) >> 3; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g1_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g1; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g1; - else - pData->fStorerow = (mng_fptr)store_g1; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g1; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 7; - pData->iSamplediv = 3; - pData->iRowsize = ((pData->iRowsamples + 7) >> 3); - pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g2_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g2; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g2; - else - pData->fStorerow = (mng_fptr)store_g2; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g2; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 3; - pData->iSamplediv = 2; - pData->iRowsize = (pData->iRowsamples + 3) >> 2; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g2_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g2; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g2; - else - pData->fStorerow = (mng_fptr)store_g2; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g2; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 3; - pData->iSamplediv = 2; - pData->iRowsize = ((pData->iRowsamples + 3) >> 2); - pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g4_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g4; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g4; - else - pData->fStorerow = (mng_fptr)store_g4; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g4; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 1; - pData->iSamplediv = 1; - pData->iRowsize = (pData->iRowsamples + 1) >> 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g4_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g4; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g4; - else - pData->fStorerow = (mng_fptr)store_g4; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g4; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 1; - pData->iSamplediv = 1; - pData->iRowsize = ((pData->iRowsamples + 1) >> 1); - pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g8; - else - pData->fStorerow = (mng_fptr)store_g8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g8_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g8; - else - pData->fStorerow = (mng_fptr)store_g8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g8; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples; - pData->iRowmax = pData->iDatawidth + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g16_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g16; - else - pData->fStorerow = (mng_fptr)store_g16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g16; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 2; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 2; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_g16_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_g16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_g16; - else - pData->fStorerow = (mng_fptr)store_g16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g16; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 2; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 1; - pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; - pData->iFilterbpp = 2; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgb8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgb8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgb8; - else - pData->fStorerow = (mng_fptr)store_rgb8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgb8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 3; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples * 3; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 3; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgb8_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgb8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgb8; - else - pData->fStorerow = (mng_fptr)store_rgb8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgb8; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 3; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples * 3; - pData->iRowmax = (pData->iDatawidth * 3) + pData->iPixelofs; - pData->iFilterbpp = 3; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgb16_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgb16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgb16; - else - pData->fStorerow = (mng_fptr)store_rgb16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgb16; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 6; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples * 6; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 6; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgb16_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgb16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgb16; - else - pData->fStorerow = (mng_fptr)store_rgb16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgb16; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 6; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples * 6; - pData->iRowmax = (pData->iDatawidth * 6) + pData->iPixelofs; - pData->iFilterbpp = 6; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx1_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx1; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx1; - else - pData->fStorerow = (mng_fptr)store_idx1; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx1; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 7; - pData->iSamplediv = 3; - pData->iRowsize = (pData->iRowsamples + 7) >> 3; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx1_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx1; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx1; - else - pData->fStorerow = (mng_fptr)store_idx1; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx1; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 7; - pData->iSamplediv = 3; - pData->iRowsize = (pData->iRowsamples + 7) >> 3; - pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx2_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx2; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx2; - else - pData->fStorerow = (mng_fptr)store_idx2; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx2; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 3; - pData->iSamplediv = 2; - pData->iRowsize = (pData->iRowsamples + 3) >> 2; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx2_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx2; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx2; - else - pData->fStorerow = (mng_fptr)store_idx2; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx2; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 3; - pData->iSamplediv = 2; - pData->iRowsize = (pData->iRowsamples + 3) >> 2; - pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx4_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx4; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx4; - else - pData->fStorerow = (mng_fptr)store_idx4; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx4; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 1; - pData->iSamplediv = 1; - pData->iRowsize = (pData->iRowsamples + 1) >> 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx4_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx4; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx4; - else - pData->fStorerow = (mng_fptr)store_idx4; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx4; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 1; - pData->iSamplediv = 1; - pData->iRowsize = (pData->iRowsamples + 1) >> 1; - pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx8; - else - pData->fStorerow = (mng_fptr)store_idx8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_idx8_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_idx8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_idx8; - else - pData->fStorerow = (mng_fptr)store_idx8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_idx8; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 1; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples; - pData->iRowmax = pData->iDatawidth + pData->iPixelofs; - pData->iFilterbpp = 1; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_ga8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_ga8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_ga8; - else - pData->fStorerow = (mng_fptr)store_ga8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_ga8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 2; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 2; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_ga8_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_ga8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_ga8; - else - pData->fStorerow = (mng_fptr)store_ga8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_ga8; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 2; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 1; - pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; - pData->iFilterbpp = 2; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_ga16_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_ga16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_ga16; - else - pData->fStorerow = (mng_fptr)store_ga16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_ga16; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 4; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 2; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 4; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_ga16_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_ga16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_ga16; - else - pData->fStorerow = (mng_fptr)store_ga16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_ga16; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 4; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 2; - pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; - pData->iFilterbpp = 4; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgba8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgba8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgba8; - else - pData->fStorerow = (mng_fptr)store_rgba8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgba8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 4; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 2; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 4; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgba8_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgba8; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgba8; - else - pData->fStorerow = (mng_fptr)store_rgba8; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgba8; - - pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 4; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 2; - pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; - pData->iFilterbpp = 4; - pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgba16_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgba16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgba16; - else - pData->fStorerow = (mng_fptr)store_rgba16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgba16; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 8; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 3; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 8; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_rgba16_i (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_START) -#endif - - if (pData->fDisplayrow) - pData->fProcessrow = (mng_fptr)process_rgba16; - - if (pData->pStoreobj) /* store in object too ? */ - { /* immediate delta ? */ - if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) - pData->fStorerow = (mng_fptr)delta_rgba16; - else - pData->fStorerow = (mng_fptr)store_rgba16; - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_rgba16; - - pData->iPass = 0; /* from 0..6; (1..7 in specification) */ - pData->iRow = interlace_row [0]; - pData->iRowinc = interlace_rowskip [0]; - pData->iCol = interlace_col [0]; - pData->iColinc = interlace_colskip [0]; - pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; - pData->iSamplemul = 8; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 3; - pData->iRowmax = (pData->iDatawidth << 3) + pData->iPixelofs; - pData->iFilterbpp = 8; - pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ -/* * * */ -/* * Row processing initialization routines (JPEG) - set up the variables * */ -/* * needed to process uncompressed row-data * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG - -/* ************************************************************************** */ - -mng_retcode init_jpeg_a1_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* store in object too ? */ - { - if (pData->iJHDRimgbitdepth == 8) - { - switch (pData->iJHDRcolortype) - { - case 12 : { pData->fStorerow = (mng_fptr)store_jpeg_g8_a1; break; } - case 14 : { pData->fStorerow = (mng_fptr)store_jpeg_rgb8_a1; break; } - } - } - - /* TODO: bitdepth 12 & 20 */ - - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g1; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 7; - pData->iSamplediv = 3; - pData->iRowsize = (pData->iRowsamples + 7) >> 3; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_jpeg_a2_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* store in object too ? */ - { - if (pData->iJHDRimgbitdepth == 8) - { - switch (pData->iJHDRcolortype) - { - case 12 : { pData->fStorerow = (mng_fptr)store_jpeg_g8_a2; break; } - case 14 : { pData->fStorerow = (mng_fptr)store_jpeg_rgb8_a2; break; } - } - } - - /* TODO: bitdepth 12 & 20 */ - - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g2; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 3; - pData->iSamplediv = 2; - pData->iRowsize = (pData->iRowsamples + 3) >> 2; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_jpeg_a4_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* store in object too ? */ - { - if (pData->iJHDRimgbitdepth == 8) - { - switch (pData->iJHDRcolortype) - { - case 12 : { pData->fStorerow = (mng_fptr)store_jpeg_g8_a4; break; } - case 14 : { pData->fStorerow = (mng_fptr)store_jpeg_rgb8_a4; break; } - } - } - - /* TODO: bitdepth 12 & 20 */ - - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g4; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 1; - pData->iSamplediv = 1; - pData->iRowsize = (pData->iRowsamples + 1) >> 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_jpeg_a8_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* store in object too ? */ - { - if (pData->iJHDRimgbitdepth == 8) - { - switch (pData->iJHDRcolortype) - { - case 12 : { pData->fStorerow = (mng_fptr)store_jpeg_g8_a8; break; } - case 14 : { pData->fStorerow = (mng_fptr)store_jpeg_rgb8_a8; break; } - } - } - - /* TODO: bitdepth 12 & 20 */ - - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g8; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 1; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 1; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -mng_retcode init_jpeg_a16_ni (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* store in object too ? */ - { - if (pData->iJHDRimgbitdepth == 8) - { - switch (pData->iJHDRcolortype) - { - case 12 : { pData->fStorerow = (mng_fptr)store_jpeg_g8_a16; break; } - case 14 : { pData->fStorerow = (mng_fptr)store_jpeg_rgb8_a16; break; } - } - } - - /* TODO: bitdepth 12 & 20 */ - - } - - if (pData->iFilter & 0x40) /* leveling & differing ? */ - pData->fDifferrow = (mng_fptr)differ_g16; - - pData->iPass = -1; - pData->iRow = 0; - pData->iRowinc = 1; - pData->iCol = 0; - pData->iColinc = 1; - pData->iRowsamples = pData->iDatawidth; - pData->iSamplemul = 2; - pData->iSampleofs = 0; - pData->iSamplediv = 0; - pData->iRowsize = pData->iRowsamples << 1; - pData->iRowmax = pData->iRowsize + pData->iPixelofs; - pData->iFilterbpp = 2; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_END) -#endif - - return init_rowproc (pData); -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ -/* * * */ -/* * Generic row processing initialization & cleanup routines * */ -/* * - initialize the buffers used by the row processing routines * */ -/* * - cleanup the buffers used by the row processing routines * */ -/* * * */ -/* ************************************************************************** */ - -mng_retcode init_rowproc (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_START) -#endif - - if (pData->pStoreobj) /* storage object selected ? */ - { - pData->pStorebuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; - /* and so it becomes viewable ! */ - ((mng_imagep)pData->pStoreobj)->bViewable = MNG_TRUE; - ((mng_imagedatap)pData->pStorebuf)->bViewable = MNG_TRUE; - } - - /* allocate the buffers; the individual init routines have already - calculated the required maximum size; except in the case of a JNG - without alpha!!! */ - if (pData->iRowmax) - { - MNG_ALLOC (pData, pData->pWorkrow, pData->iRowmax) - MNG_ALLOC (pData, pData->pPrevrow, pData->iRowmax) - } - - /* allocate an RGBA16 row for intermediate processing */ - MNG_ALLOC (pData, pData->pRGBArow, (pData->iDatawidth << 3)); - -#ifndef MNG_NO_CMS - if (pData->fDisplayrow) /* display "on-the-fly" ? */ - { -#if defined(MNG_FULL_CMS) /* determine color-management initialization */ - mng_retcode iRetcode = init_full_cms (pData); -#elif defined(MNG_GAMMA_ONLY) - mng_retcode iRetcode = init_gamma_only (pData); -#elif defined(MNG_APP_CMS) - mng_retcode iRetcode = init_app_cms (pData); -#endif - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* !MNG_NO_CMS */ - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode next_row (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_START) -#endif - - pData->iRow += pData->iRowinc; /* increase the row counter */ - - if (pData->iPass >= 0) /* interlaced ? */ - { - while ((pData->iPass < 7) && /* went 'outside' the image ? */ - ((pData->iRow >= (mng_int32)pData->iDataheight) || - (pData->iCol >= (mng_int32)pData->iDatawidth ) )) - { - pData->iPass++; /* next pass ! */ - - if (pData->iPass < 7) /* there's only 7 passes ! */ - { - pData->iRow = interlace_row [pData->iPass]; - pData->iRowinc = interlace_rowskip [pData->iPass]; - pData->iCol = interlace_col [pData->iPass]; - pData->iColinc = interlace_colskip [pData->iPass]; - pData->iRowsamples = (pData->iDatawidth - pData->iCol + interlace_roundoff [pData->iPass]) - >> interlace_divider [pData->iPass]; - - if (pData->iSamplemul > 1) /* recalculate row dimension */ - pData->iRowsize = pData->iRowsamples * pData->iSamplemul; - else - if (pData->iSamplediv > 0) - pData->iRowsize = (pData->iRowsamples + pData->iSampleofs) >> pData->iSamplediv; - else - pData->iRowsize = pData->iRowsamples; - - } - - if ((pData->iPass < 7) && /* reset previous row to zeroes ? */ - (pData->iRow < (mng_int32)pData->iDataheight) && - (pData->iCol < (mng_int32)pData->iDatawidth ) ) - { /* making sure the filters will work properly! */ - mng_int32 iX; - mng_uint8p pTemp = pData->pPrevrow; - - for (iX = 0; iX < pData->iRowsize; iX++) - { - *pTemp = 0; - pTemp++; - } - } - } - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode cleanup_rowproc (mng_datap pData) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_START) -#endif - -#ifdef MNG_INCLUDE_LCMS /* cleanup cms profile/transform */ - { - mng_retcode iRetcode = mng_clear_cms (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } -#endif /* MNG_INCLUDE_LCMS */ - - if (pData->pWorkrow) /* cleanup buffer for working row */ - MNG_FREE (pData, pData->pWorkrow, pData->iRowmax) - - if (pData->pPrevrow) /* cleanup buffer for previous row */ - MNG_FREE (pData, pData->pPrevrow, pData->iRowmax) - - if (pData->pRGBArow) /* cleanup buffer for intermediate row */ - MNG_FREE (pData, pData->pRGBArow, (pData->iDatawidth << 3)) - - pData->pWorkrow = 0; /* propogate uninitialized buffers */ - pData->pPrevrow = 0; - pData->pRGBArow = 0; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_END) -#endif - - return MNG_NOERROR; /* woohiii */ -} - -/* ************************************************************************** */ -/* * * */ -/* * Generic row processing routines for JNG * */ -/* * * */ -/* ************************************************************************** */ - -#ifdef MNG_INCLUDE_JNG - -/* ************************************************************************** */ - -mng_retcode display_jpeg_rows (mng_datap pData) -{ - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_START) -#endif - /* any completed rows ? */ - if ((pData->iJPEGrow > pData->iJPEGdisprow) && - (pData->iJPEGalpharow > pData->iJPEGdisprow) ) - { - mng_uint32 iX, iMax; - mng_uint32 iSaverow = pData->iRow; /* save alpha decompression row-count */ - /* determine the highest complete(!) row */ - if (pData->iJPEGrow > pData->iJPEGalpharow) - iMax = pData->iJPEGalpharow; - else - iMax = pData->iJPEGrow; - /* display the rows */ - for (iX = pData->iJPEGdisprow; iX < iMax; iX++) - { - pData->iRow = iX; /* make sure we all know which row to handle */ - /* makeup an intermediate row from the buffer */ - iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); - /* color-correct it if necessary */ - if ((!iRetcode) && (pData->fCorrectrow)) - iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); - - if (!iRetcode) /* and display it */ - { - iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); - - if (!iRetcode) /* check progressive display refresh */ - iRetcode = display_progressive_check (pData); - } - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - - pData->iJPEGdisprow = iMax; /* keep track of the last displayed row */ - pData->iRow = iSaverow; /* restore alpha decompression row-count */ - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode next_jpeg_alpharow (mng_datap pData) -{ - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_START) -#endif - - pData->iJPEGalpharow++; /* count the row */ - - if (pData->fDisplayrow) /* display "on-the-fly" ? */ - { /* try to display what you can */ - iRetcode = display_jpeg_rows (pData); - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode next_jpeg_row (mng_datap pData) -{ - mng_retcode iRetcode; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_START) -#endif - - pData->iJPEGrow++; /* increase the row-counter */ - - if (pData->fDisplayrow) /* display "on-the-fly" ? */ - { /* has alpha channel ? */ - if ((pData->iJHDRcolortype == MNG_COLORTYPE_JPEGGRAYA ) || - (pData->iJHDRcolortype == MNG_COLORTYPE_JPEGCOLORA) ) - { /* try to display what you can */ - iRetcode = display_jpeg_rows (pData); - } - else - { /* make sure we all know which row to handle */ - pData->iRow = pData->iJPEGrow - 1; - /* makeup an intermediate row from the buffer */ - iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); - /* color-correct it if necessary */ - if ((!iRetcode) && (pData->fCorrectrow)) - iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); - - if (!iRetcode) /* and display it */ - { - iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); - - if (!iRetcode) /* check progressive display refresh */ - iRetcode = display_progressive_check (pData); - } - } - - if (iRetcode) /* on error bail out */ - return iRetcode; - } - - /* surpassed last filled row ? */ - if (pData->iJPEGrow > pData->iJPEGrgbrow) - pData->iJPEGrgbrow = pData->iJPEGrow; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_JNG */ - -/* ************************************************************************** */ - -mng_retcode magnify_g8_x1 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX, iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - - if (iX == 0) /* first interval ? */ - iM = iML; - else - if (iX == (iWidth - 1)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - - for (iS = 1; iS < iM; iS++) /* fill interval */ - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - } - - pTempsrc1++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_g8_x2 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 1; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { /* is it same as first ? */ - if (*pTempsrc1 == *pTempsrc2) - { - for (iS = 1; iS < iM; iS++) /* then just repeat the first */ - { - *pTempdst = *pTempsrc1; - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) /* calculate the distances */ - { - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - pTempdst++; - } - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - } - } - } - - pTempsrc1++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_g8_x3 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 1; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { /* is it same as first ? */ - if (*pTempsrc1 == *pTempsrc2) - { - for (iS = 1; iS < iM; iS++) /* then just repeat the first */ - { - *pTempdst = *pTempsrc1; - pTempdst++; - } - } - else - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* replicate first half */ - { - *pTempdst = *pTempsrc1; - pTempdst++; - } - - for (iS = iH; iS < iM; iS++) /* replicate second half */ - { - *pTempdst = *pTempsrc2; - pTempdst++; - } - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - } - } - } - - pTempsrc1++; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_x1 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX, iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - - if (iX == 0) /* first interval ? */ - iM = iML; - else - if (iX == (iWidth - 1)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - - for (iS = 1; iS < iM; iS++) /* fill interval */ - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - } - - pTempsrc1 += 3; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_x2 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 3; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - for (iS = 1; iS < iM; iS++) - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - - if (*(pTempsrc1+2) == *(pTempsrc2+2)) - *pTempdst = *(pTempsrc1+2); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - - (mng_int32)(*(pTempsrc1+2)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - } - } - } - - pTempsrc1 += 3; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_x3 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 3; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* replicate first half */ - { - *pTempdst = *pTempsrc1; - *(pTempdst+1) = *(pTempsrc1+1); - *(pTempdst+2) = *(pTempsrc1+2); - - pTempdst += 3; - } - - for (iS = iH; iS < iM; iS++) /* replicate second half */ - { - *pTempdst = *pTempsrc2; - *(pTempdst+1) = *(pTempsrc2+1); - *(pTempdst+2) = *(pTempsrc2+2); - - pTempdst += 3; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - } - } - } - - pTempsrc1 += 3; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_x1 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX, iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - - if (iX == 0) /* first interval ? */ - iM = iML; - else - if (iX == (iWidth - 1)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - - for (iS = 1; iS < iM; iS++) /* fill interval */ - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - } - - pTempsrc1 += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_x2 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 2; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - for (iS = 1; iS < iM; iS++) - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - } - } - } - - pTempsrc1 += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_x3 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 2; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* replicate first half */ - { - *pTempdst = *pTempsrc1; - *(pTempdst+1) = *(pTempsrc1+1); - - pTempdst += 2; - } - - for (iS = iH; iS < iM; iS++) /* replicate second half */ - { - *pTempdst = *pTempsrc2; - *(pTempdst+1) = *(pTempsrc2+1); - - pTempdst += 2; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - } - } - } - - pTempsrc1 += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_x4 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 2; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* first half */ - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - *pTempdst = *(pTempsrc1+1); /* replicate alpha from left */ - - pTempdst++; - } - - for (iS = iH; iS < iM; iS++) /* second half */ - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - *pTempdst = *(pTempsrc2+1); /* replicate alpha from right */ - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - } - } - } - - pTempsrc1 += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_x5 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 2; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* first half */ - { - *pTempdst = *pTempsrc1; /* replicate gray from left */ - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1);/* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - } - - for (iS = iH; iS < iM; iS++) /* second half */ - { - *pTempdst = *pTempsrc2; /* replicate gray from right */ - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1);/* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - } - } - } - - pTempsrc1 += 2; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_x1 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX, iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - - if (iX == 0) /* first interval ? */ - iM = iML; - else - if (iX == (iWidth - 1)) /* last interval ? */ - iM = iMR; - else - iM = iMX; - - for (iS = 1; iS < iM; iS++) /* fill interval */ - { - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - } - - pTempsrc1 += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_x2 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 4; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - for (iS = 1; iS < iM; iS++) - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - - if (*(pTempsrc1+2) == *(pTempsrc2+2)) - *pTempdst = *(pTempsrc1+2); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - - (mng_int32)(*(pTempsrc1+2)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); - - pTempdst++; - - if (*(pTempsrc1+3) == *(pTempsrc2+3)) - *pTempdst = *(pTempsrc1+3); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - - (mng_int32)(*(pTempsrc1+3)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - } - } - } - - pTempsrc1 += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_x3 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 4; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* replicate first half */ - { - *pTempdst = *pTempsrc1; - *(pTempdst+1) = *(pTempsrc1+1); - *(pTempdst+2) = *(pTempsrc1+2); - *(pTempdst+3) = *(pTempsrc1+3); - - pTempdst += 4; - } - - for (iS = iH; iS < iM; iS++) /* replicate second half */ - { - *pTempdst = *pTempsrc2; - *(pTempdst+1) = *(pTempsrc2+1); - *(pTempdst+2) = *(pTempsrc2+2); - *(pTempdst+3) = *(pTempsrc2+3); - - pTempdst += 4; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - } - } - } - - pTempsrc1 += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_x4 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 4; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* first half */ - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - - if (*(pTempsrc1+2) == *(pTempsrc2+2)) - *pTempdst = *(pTempsrc1+2); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - - (mng_int32)(*(pTempsrc1+2)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); - - pTempdst++; - /* replicate alpha from left */ - *pTempdst = *(pTempsrc1+3); - - pTempdst++; - } - - for (iS = iH; iS < iM; iS++) /* second half */ - { - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; /* just repeat the first */ - else /* calculate the distance */ - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2)) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - - if (*(pTempsrc1+1) == *(pTempsrc2+1)) - *pTempdst = *(pTempsrc1+1); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - - (mng_int32)(*(pTempsrc1+1)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); - - pTempdst++; - - if (*(pTempsrc1+2) == *(pTempsrc2+2)) - *pTempdst = *(pTempsrc1+2); - else - *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - - (mng_int32)(*(pTempsrc1+2)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); - - pTempdst++; - /* replicate alpha from right */ - *pTempdst = *(pTempsrc2+3); - - pTempdst++; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - } - } - } - - pTempsrc1 += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_x5 (mng_datap pData, - mng_uint16 iMX, - mng_uint16 iML, - mng_uint16 iMR, - mng_uint32 iWidth, - mng_uint8p pSrcline, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_int32 iS, iM, iH; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X5, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline; /* initialize pixel-loop */ - pTempdst = pDstline; - - for (iX = 0; iX < iWidth; iX++) - { - pTempsrc2 = pTempsrc1 + 4; - - *pTempdst = *pTempsrc1; /* copy original source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - - if (iX == 0) /* first interval ? */ - { - if (iWidth == 1) /* single pixel ? */ - pTempsrc2 = MNG_NULL; - - iM = (mng_int32)iML; - } - else - if (iX == (iWidth - 2)) /* last interval ? */ - iM = (mng_int32)iMR; - else - iM = (mng_int32)iMX; - /* fill interval ? */ - if ((iX < iWidth - 1) || (iWidth == 1)) - { - if (pTempsrc2) /* do we have the second pixel ? */ - { - iH = (iM+1) / 2; /* calculate halfway point */ - - for (iS = 1; iS < iH; iS++) /* first half */ - { - *pTempdst = *pTempsrc1; /* replicate color from left */ - *(pTempdst+1) = *(pTempsrc1+1); - *(pTempdst+2) = *(pTempsrc1+2); - - if (*(pTempsrc1+3) == *(pTempsrc2+3)) - *(pTempdst+3) = *(pTempsrc1+3); - else - *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - - (mng_int32)(*(pTempsrc1+3)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); - - pTempdst += 4; - } - - for (iS = iH; iS < iM; iS++) /* second half */ - { - *pTempdst = *pTempsrc2; /* replicate color from right */ - *(pTempdst+1) = *(pTempsrc2+1); - *(pTempdst+2) = *(pTempsrc2+2); - - if (*(pTempsrc1+3) == *(pTempsrc2+3)) - *(pTempdst+3) = *(pTempsrc1+3); - else - *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - - (mng_int32)(*(pTempsrc1+3)) ) + iM) / - (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); - - pTempdst += 4; - } - } - else - { - for (iS = 1; iS < iM; iS++) - { - *pTempdst = *pTempsrc1; /* repeat first source pixel */ - pTempdst++; - *pTempdst = *(pTempsrc1+1); - pTempdst++; - *pTempdst = *(pTempsrc1+2); - pTempdst++; - *pTempdst = *(pTempsrc1+3); - pTempdst++; - } - } - } - - pTempsrc1 += 4; - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_g8_y1 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_START) -#endif - - MNG_COPY (pDstline, pSrcline1, iWidth) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_g8_y2 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_g8_y3 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_START) -#endif - - if (pSrcline2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - MNG_COPY (pDstline, pSrcline1, iWidth) - else - MNG_COPY (pDstline, pSrcline2, iWidth) - } - else - { /* just repeat the entire line */ - MNG_COPY (pDstline, pSrcline1, iWidth) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_y1 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_START) -#endif - - MNG_COPY (pDstline, pSrcline1, iWidth * 3) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_y2 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth * 3) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgb8_y3 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_START) -#endif - - if (pSrcline2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - MNG_COPY (pDstline, pSrcline1, iWidth * 3) - else - MNG_COPY (pDstline, pSrcline2, iWidth * 3) - } - else - { /* just repeat the entire line */ - MNG_COPY (pDstline, pSrcline1, iWidth * 3) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_y1 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_START) -#endif - - MNG_COPY (pDstline, pSrcline1, iWidth << 1) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_y2 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 1) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_y3 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y3, MNG_LC_START) -#endif - - if (pSrcline2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - MNG_COPY (pDstline, pSrcline1, iWidth << 1) - else - MNG_COPY (pDstline, pSrcline2, iWidth << 1) - } - else - { /* just repeat the entire line */ - MNG_COPY (pDstline, pSrcline1, iWidth << 1) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_y4 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2 += 2; - - *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ - } - } - else - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1 += 2; - pTempsrc2++; - - *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ - } - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 1) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_ga8_y5 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - { - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc1; /* replicate gray from top */ - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst = *pTempsrc2; /* replicate gray from bottom */ - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 1) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_y1 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_START) -#endif - - MNG_COPY (pDstline, pSrcline1, iWidth << 2) - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_y2 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 2) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_y3 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y3, MNG_LC_START) -#endif - - if (pSrcline2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - MNG_COPY (pDstline, pSrcline1, iWidth << 2) - else - MNG_COPY (pDstline, pSrcline2, iWidth << 2) - } - else - { /* just repeat the entire line */ - MNG_COPY (pDstline, pSrcline1, iWidth << 2) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_y4 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2 += 2; - - *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ - } - } - else - { - for (iX = 0; iX < iWidth; iX++) - { /* calculate the distances */ - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - - if (*pTempsrc1 == *pTempsrc2) - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1 += 2; - pTempsrc2++; - - *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ - } - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 2) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -mng_retcode magnify_rgba8_y5 (mng_datap pData, - mng_int32 iS, - mng_int32 iM, - mng_uint32 iWidth, - mng_uint8p pSrcline1, - mng_uint8p pSrcline2, - mng_uint8p pDstline) -{ - mng_uint32 iX; - mng_uint8p pTempsrc1; - mng_uint8p pTempsrc2; - mng_uint8p pTempdst; - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_START) -#endif - - pTempsrc1 = pSrcline1; /* initialize pixel-loop */ - pTempsrc2 = pSrcline2; - pTempdst = pDstline; - - if (pTempsrc2) /* do we have a second line ? */ - { - if (iS < (iM+1) / 2) /* top half ? */ - { - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst++ = *pTempsrc1++; /* replicate color from top */ - *pTempdst++ = *pTempsrc1++; - *pTempdst++ = *pTempsrc1++; - - pTempsrc2 += 3; - - if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - else - { - for (iX = 0; iX < iWidth; iX++) - { - *pTempdst++ = *pTempsrc2++; /* replicate color from bottom */ - *pTempdst++ = *pTempsrc2++; - *pTempdst++ = *pTempsrc2++; - - pTempsrc1 += 3; - - if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ - *pTempdst = *pTempsrc1; - else - *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - - (mng_int32)(*pTempsrc1) ) + iM) / - (iM * 2) ) + (mng_int32)(*pTempsrc1) ); - - pTempdst++; - pTempsrc1++; - pTempsrc2++; - } - } - } - else - { /* just repeat the entire line */ - MNG_COPY (pTempdst, pTempsrc1, iWidth << 2) - } - -#ifdef MNG_SUPPORT_TRACE - MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_END) -#endif - - return MNG_NOERROR; -} - -/* ************************************************************************** */ - -#endif /* MNG_INCLUDE_DISPLAY_PROCS */ - -/* ************************************************************************** */ -/* * end of file * */ -/* ************************************************************************** */ - |