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-rw-r--r--mpeglib/lib/util/render/x11/imageDGAFull.cpp289
1 files changed, 289 insertions, 0 deletions
diff --git a/mpeglib/lib/util/render/x11/imageDGAFull.cpp b/mpeglib/lib/util/render/x11/imageDGAFull.cpp
new file mode 100644
index 00000000..6e07b658
--- /dev/null
+++ b/mpeglib/lib/util/render/x11/imageDGAFull.cpp
@@ -0,0 +1,289 @@
+/*
+ xfree 4.0 dga fullscreen mode
+ Copyright (C) 2000 Martin Vogt, Christian Gerlach
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Library General Public License as published by
+ the Free Software Foundation.
+
+ For more information look at the file COPYRIGHT in this package
+
+ */
+
+
+#include "imageDGAFull.h"
+
+#include <iostream>
+
+using namespace std;
+
+ImageDGAFull::ImageDGAFull() {
+
+ m_iMode = -1;
+ m_bIsActive = false;
+ lSupport=false;
+ m_pxWindow = NULL;
+ m_iImageMode = _IMAGE_NONE;
+ ditherWrapper=NULL;
+ supportedModes = _IMAGE_NONE;
+ setIdentifier("DGA");
+}
+
+
+ImageDGAFull::~ImageDGAFull() {
+ if (ditherWrapper != NULL) {
+ delete ditherWrapper;
+ }
+}
+
+void ImageDGAFull::init(XWindow *xWindow, YUVPicture*)
+{
+ int uid;
+
+ m_pxWindow = xWindow;
+ if (ditherWrapper == NULL) {
+ ditherWrapper=new DitherWrapper(xWindow->depth,
+ xWindow->redMask,
+ xWindow->greenMask,
+ xWindow->blueMask,
+ xWindow->pixel);
+ }
+
+#ifndef X11_DGA2
+ return;
+#endif
+
+#ifdef X11_DGA2
+ m_pDGAModes=NULL;
+ m_iNumberModes = 0;
+
+ m_iVideoWidth = xWindow->width;
+ m_iVideoHeight = xWindow->height;
+ uid=getuid();
+ if (uid != 0) {
+ //cout << "you are :"<<uid<<" and not root(0). DGA 2.0 needs root"<<endl;
+ return;
+ }
+
+ if ((m_pDisplay =xWindow->display)==NULL ) {
+ fprintf( stderr, " cannot connect to X server %s\n", XDisplayName(NULL));
+ return;
+ }
+
+ m_iScreen = DefaultScreen(xWindow->display);
+
+
+ if (!XF86DGAQueryVersion(xWindow->display,
+ &m_iMajorVersion, &m_iMinorVersion)) {
+ fprintf(stderr, "Unable to query video extension version\n");
+ return ;
+ }
+ printf("DGA version %d.%d detected!\n", m_iMajorVersion, m_iMinorVersion);
+
+ // Fail if the extension version in the server is too old
+ if (m_iMajorVersion < DGA_MINMAJOR ||
+ (m_iMajorVersion == DGA_MINMAJOR && m_iMinorVersion < DGA_MINMINOR)) {
+ fprintf(stderr, "Xserver is running an old XFree86-DGA version"
+ " (%d.%d)\n", m_iMajorVersion, m_iMinorVersion);
+ fprintf(stderr, "Minimum required version is %d.%d\n",
+ DGA_MINMAJOR, DGA_MINMINOR);
+ return ;
+ }
+
+ if (!XF86DGAQueryExtension(m_pDisplay, &m_iEventBase, &m_iErrorBase)) {
+ fprintf(stderr, "Unable to query video extension information\n");
+ return ;
+ }
+ printf("Event base %d\n", m_iEventBase);
+ printf("Error base %d\n", m_iErrorBase);
+
+ lSupport=true;
+ supportedModes = _IMAGE_FULL;
+#endif
+}
+
+int ImageDGAFull::support() {
+ return lSupport;
+}
+
+
+int ImageDGAFull::openImage(int mode) {
+#ifdef X11_DGA2
+ int width, bank, ram;
+ m_bAllowZoom = IS_DOUBLE(mode);
+ m_iImageMode = mode;
+
+ /* Open access to the framebuffer */
+ if ( ! XDGAOpenFramebuffer(m_pDisplay,m_iScreen) ) {
+ return(false);
+ }
+
+ findMode(m_pxWindow->width, m_pxWindow->height, m_pxWindow->depth);
+ m_pDevice = XDGASetMode(m_pDisplay, m_iScreen, m_pDGAModes[m_iMode].num);
+
+
+ XDGASelectInput(m_pDisplay, m_iScreen,
+ KeyPressMask | ButtonPressMask | PointerMotionMask);
+
+ XF86DGAGetVideo(m_pDisplay,m_iScreen,&m_pAddr,&width,&bank,&ram);
+
+
+ if(bank < (ram * 1024)) {
+ XF86DGASetVidPage(m_pxWindow->display,
+ DefaultScreen(m_pxWindow->display), 0);
+ }
+
+ XF86DGASetViewPort(m_pxWindow->display,
+ DefaultScreen(m_pxWindow->display),0,0);
+
+
+ printf("Offset:%8x\n",m_iOffsetScreen);
+ m_pStartAddr = m_pAddr + m_iOffsetScreen;
+ m_iOffsetLine = (m_iBytesPerLine - m_iBytesPerRow) / m_iBytesPerPixel;
+ cout << "LineOffset: " << m_iOffsetLine << endl;
+
+ // Clear the screen
+ memset(m_pAddr, 0, m_iBytesPerLine * m_iScreenHeight);
+ /* char *pos = m_pStartAddr;
+ int end = (m_bZoom) ? 2*m_iVideoHeight : m_iVideoHeight;
+ for (int line=0 ; line<end ; line++) {
+ memset(pos, 80, m_iBytesPerRow);
+ pos += m_iBytesPerRow + m_iOffsetLine * m_iBytesPerPixel;
+ }
+ sleep(2);*/
+
+ m_bIsActive = true;
+#endif
+ return true;
+}
+
+
+int ImageDGAFull::closeImage() {
+#ifdef X11_DGA2
+ m_bIsActive = false;
+ stop();
+
+ // delete resources
+ if (m_pDGAModes != NULL) {
+ delete m_pDGAModes;
+ m_pDGAModes=NULL;
+ }
+#endif
+ return true;
+}
+
+
+unsigned char* ImageDGAFull::address() {
+ return (unsigned char*) m_pStartAddr;
+}
+
+
+int ImageDGAFull::offset() {
+ return m_iOffsetLine;
+}
+
+
+void ImageDGAFull::ditherImage(YUVPicture* pic) {
+
+ int useMode = (m_bZoom) ? m_iImageMode : m_iImageMode & (!_IMAGE_DOUBLE);
+
+ ditherWrapper->doDither(pic,m_pxWindow->depth,useMode,
+ address(),offset());
+}
+
+
+void ImageDGAFull::putImage() {
+
+ if (event())
+ closeImage();
+}
+
+
+int ImageDGAFull::findMode(int width, int height, int bpp) {
+#ifdef X11_DGA2
+ int minBorder = INT_MAX;
+ int yBorder=0;
+ int border;
+
+ // TODO: also check the y-axis
+
+ m_iMode = -1;
+ m_iNumberModes = 0;
+ m_pDGAModes = XDGAQueryModes(m_pDisplay, m_iScreen, &m_iNumberModes);
+ printf("Number modes: %d\n", m_iNumberModes);
+
+ for (int count=0 ; count<m_iNumberModes ; count++) {
+
+
+ if (m_pDGAModes[count].depth != bpp)
+ continue;
+
+ printf("Mode: %d %dx%d \t bpp %d\n",
+ count,
+ m_pDGAModes[count].viewportWidth,
+ m_pDGAModes[count].viewportHeight,
+ m_pDGAModes[count].bitsPerPixel);
+
+ // test normal video
+ border = m_pDGAModes[count].viewportWidth - width;
+ if ((border >= 0) && (border < minBorder)) {
+ minBorder = border;
+ m_iMode = count;
+ m_bZoom = false;
+ yBorder = m_pDGAModes[count].viewportHeight - height;
+ }
+
+ // test zoomed video
+ if (m_bAllowZoom) {
+ border = m_pDGAModes[count].viewportWidth - 2 * width;
+ if ((border >= 0) && (border < minBorder)) {
+ minBorder = border;
+ m_iMode = count;
+ m_bZoom = true;
+ yBorder = m_pDGAModes[count].viewportHeight-2*height;
+ }
+ }
+ }
+
+ if (m_iMode != -1) {
+ m_iScreenWidth = m_pDGAModes[m_iMode].viewportWidth;
+ m_iScreenHeight = m_pDGAModes[m_iMode].viewportHeight;
+
+ m_iBytesPerPixel = m_pDGAModes[m_iMode].bitsPerPixel / 8;
+ m_iBytesPerLine = m_pDGAModes[m_iMode].bytesPerScanline;
+ m_iBytesPerRow = width * m_iBytesPerPixel;
+ if (m_bZoom) {
+ m_iBytesPerRow += m_iBytesPerRow;
+ }
+
+ m_iOffsetScreen = minBorder * (m_iBytesPerPixel / 2) +
+ (yBorder / 2) * m_iBytesPerLine;
+ }
+
+ cout << "Best Mode: " << m_iMode << endl;
+ cout << "Border Size: " << minBorder / 2 << endl;
+ cout << "Zoom: " << m_bZoom << endl;
+ cout << "Bytes per Line: " << m_iBytesPerLine << endl;
+ cout << "Bytes per Row: " << m_iBytesPerRow << endl;
+ cout << "Bytes per Pixel:" << m_iBytesPerPixel << endl;
+ cout << "Total offset: " << m_iOffsetScreen << endl;
+#endif
+ return (m_iMode != -1);
+}
+
+
+
+int ImageDGAFull::event() {
+ XEvent event;
+ return XCheckTypedEvent(m_pDisplay, ButtonPress + m_iEventBase, &event);
+}
+
+void ImageDGAFull::stop() {
+#ifdef X11_DGA2
+ m_bIsActive = false;
+ XF86DGADirectVideo(m_pDisplay, m_iScreen, 0);
+
+ XUngrabPointer(m_pDisplay, CurrentTime);
+ XUngrabKeyboard(m_pDisplay, CurrentTime);
+#endif
+}
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