diff options
Diffstat (limited to 'xrdp/xrdp_painter.c')
| -rw-r--r-- | xrdp/xrdp_painter.c | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/xrdp/xrdp_painter.c b/xrdp/xrdp_painter.c new file mode 100644 index 00000000..b09df176 --- /dev/null +++ b/xrdp/xrdp_painter.c @@ -0,0 +1,333 @@ + +/* + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + Copyright (C) Jay Sorg 2004 + + painter, gc + +*/ + +#include "xrdp.h" + +/*****************************************************************************/ +struct xrdp_painter* xrdp_painter_create(struct xrdp_wm* wm) +{ + struct xrdp_painter* self; + + self = (struct xrdp_painter*)g_malloc(sizeof(struct xrdp_painter), 1); + self->wm = wm; + self->orders = wm->orders; + self->rop = 0xcc; /* copy */ + return self; +} + +/*****************************************************************************/ +void xrdp_painter_delete(struct xrdp_painter* self) +{ + if (self == 0) + return; + g_free(self); +} + +/*****************************************************************************/ +int xrdp_painter_begin_update(struct xrdp_painter* self) +{ + xrdp_orders_init(self->orders); + return 0; +} + +/*****************************************************************************/ +int xrdp_painter_end_update(struct xrdp_painter* self) +{ + xrdp_orders_send(self->orders); + return 0; +} + +/*****************************************************************************/ +int xrdp_painter_clip_adj(struct xrdp_painter* self, int* x, int* y, + int* cx, int* cy) +{ + int dx; + int dy; + + if (!self->use_clip) + return 1; + if (self->clip.left > *x) + dx = self->clip.left - *x; + else + dx = 0; + if (self->clip.top > *y) + dy = self->clip.top - *y; + else + dy = 0; + if (*x + *cx > self->clip.right) + *cx = *cx - ((*x + *cx) - self->clip.right); + if (*y + *cy > self->clip.bottom) + *cy = *cy - ((*y + *cy) - self->clip.bottom); + *cx = *cx - dx; + *cy = *cy - dy; + if (*cx <= 0) + return 0; + if (*cy <= 0) + return 0; + *x = *x + dx; + *y = *y + dy; + return 1; +} + +/*****************************************************************************/ +int xrdp_painter_set_clip(struct xrdp_painter* self, + int x, int y, int cx, int cy) +{ + self->use_clip = 1; + self->clip.left = x; + self->clip.top = y; + self->clip.right = x + cx; + self->clip.bottom = y + cy; + return 0; +} + +/*****************************************************************************/ +int xrdp_painter_clr_clip(struct xrdp_painter* self) +{ + self->use_clip = 0; + return 0; +} + +/*****************************************************************************/ +int xrdp_painter_rop(int rop, int src, int dst) +{ + switch (rop & 0x0f) + { + case 0x0: return 0; + case 0x1: return ~(src | dst); + case 0x2: return (~src) & dst; + case 0x3: return ~src; + case 0x4: return src & (~dst); + case 0x5: return ~(dst); + case 0x6: return src ^ dst; + case 0x7: return ~(src & dst); + case 0x8: return src & dst; + case 0x9: return ~(src) ^ dst; + case 0xa: return dst; + case 0xb: return (~src) | dst; + case 0xc: return src; + case 0xd: return src | (~dst); + case 0xe: return src | dst; + case 0xf: return ~0; + } + return dst; +} + +/*****************************************************************************/ +/* fill in an area of the screen with one color */ +int xrdp_painter_fill_rect(struct xrdp_painter* self, + struct xrdp_bitmap* bitmap, + int x, int y, int cx, int cy) +{ + int i; + struct xrdp_region* region; + struct xrdp_rect rect; + + if (x >= bitmap->width) return 0; + if (y >= bitmap->height) return 0; + if (x < 0) { cx += x; x = 0; } + if (y < 0) { cy += y; y = 0; } + if (cx <= 0) return 0; + if (cy <= 0) return 0; + if (x + cx > bitmap->width) cx = bitmap->width - x; + if (y + cy > bitmap->height) cy = bitmap->height - y; + + if (!xrdp_painter_clip_adj(self, &x, &y, &cx, &cy)) + return 0; + + if (bitmap->type == 0) + return 0; + region = xrdp_region_create(self->wm); + xrdp_wm_get_vis_region(self->wm, bitmap, x, y, cx, cy, region); + i = 0; + while (xrdp_region_get_rect(region, i, &rect) == 0) + { + DEBUG(("sending rect order %d %d %d %d\n\r", rect.left, rect.top, + rect.right, rect.bottom)); + xrdp_orders_rect(self->orders, rect.left, rect.top, + rect.right - rect.left, + rect.bottom - rect.top, + self->fg_color, 0); + i++; + } + xrdp_region_delete(region); + return 0; +} + +/*****************************************************************************/ +/* fill in an area of the screen with opcodes and patterns */ +/* todo, this needs work */ +int xrdp_painter_fill_rect2(struct xrdp_painter* self, + struct xrdp_bitmap* bitmap, + int x, int y, int cx, int cy) +{ + int i; + struct xrdp_region* region; + struct xrdp_rect rect; + + if (x >= bitmap->width) return 0; + if (y >= bitmap->height) return 0; + if (x < 0) { cx += x; x = 0; } + if (y < 0) { cy += y; y = 0; } + if (cx <= 0) return 0; + if (cy <= 0) return 0; + if (x + cx > bitmap->width) cx = bitmap->width - x; + if (y + cy > bitmap->height) cy = bitmap->height - y; + + if (!xrdp_painter_clip_adj(self, &x, &y, &cx, &cy)) + return 0; + + if (bitmap->type == 0) /* bitmap */ + return 0; + region = xrdp_region_create(self->wm); + xrdp_wm_get_vis_region(self->wm, bitmap, x, y, cx, cy, region); + i = 0; + while (xrdp_region_get_rect(region, i, &rect) == 0) + { + DEBUG(("sending rect order %d %d %d %d\n\r", rect.left, rect.top, + rect.right, rect.bottom)); + xrdp_orders_pat_blt(self->orders, rect.left, rect.top, + rect.right - rect.left, + rect.bottom - rect.top, + self->rop, self->bg_color, self->fg_color, + &self->brush, 0); + i++; + } + xrdp_region_delete(region); + + return 0; +} + +#define SS 16 + +/*****************************************************************************/ +int xrdp_painter_draw_bitmap(struct xrdp_painter* self, + struct xrdp_bitmap* bitmap, + struct xrdp_bitmap* to_draw, + int x, int y, int cx, int cy) +{ + int i; + int j; + int k; + int w; + int h; + int x1; + int y1; + int ok; + int srcx; + int srcy; + int bitmap_id; + int cache_id; + int cache_idx; + int palette_id; + struct xrdp_region* region; + struct xrdp_rect rect; + struct xrdp_rect rect1; + struct xrdp_rect rect2; + struct xrdp_bitmap* b; + + /* todo data */ + + if (bitmap->type == 0) + return 0; + region = xrdp_region_create(self->wm); + xrdp_wm_get_vis_region(self->wm, bitmap, x, y, cx, cy, region); + b = bitmap; + while (b != 0) + { + x = x + b->left; + y = y + b->top; + b = b->parent; + } + palette_id = xrdp_cache_add_palette(self->wm->cache, self->wm->palette); + i = 0; + while (i < to_draw->width) + { + j = 0; + while (j < to_draw->height) + { + x1 = x + i; + y1 = y + j; + MIN(w, SS, to_draw->width - i); + MIN(h, SS, to_draw->height - j); + b = xrdp_bitmap_create(w, h, self->wm->screen->bpp, 0); + xrdp_bitmap_copy_box(to_draw, b, i, j, w, h); + bitmap_id = xrdp_cache_add_bitmap(self->wm->cache, b); + HIWORD(cache_id, bitmap_id); + LOWORD(cache_idx, bitmap_id); + k = 0; + while (xrdp_region_get_rect(region, k, &rect) == 0) + { + xrdp_wm_rect(&rect1, x1, y1, w, h); + if (xrdp_wm_rect_intersect(&rect, &rect1, &rect2)) + { + ok = 1; + if (self->use_clip) + { + rect = self->clip; + xrdp_wm_rect_offset(&rect, x, y); + if (!xrdp_wm_rect_intersect(&rect2, &rect, &rect1)) + ok = 0; + } + else + rect1 = rect2; + if (ok) + { + rect1.right--; + rect1.bottom--; + /* check these so ms client don't crash */ + if (x1 + w >= self->wm->screen->width) + w = self->wm->screen->width - x1; + if (y1 + h >= self->wm->screen->height) + h = self->wm->screen->height - y1; + if (w > 0 && h > 0 && x1 + w > 0 && y1 + h > 0) + { + srcx = 0; + srcy = 0; + if (x1 < 0) + { + w = w + x1; + srcx = srcx - x1; + x1 = 0; + } + if (y1 < 0) + { + h = h + y1; + srcy = srcy - y1; + y1 = 0; + } + xrdp_orders_mem_blt(self->orders, cache_id, palette_id, + x1, y1, w, h, self->rop, srcx, srcy, + cache_idx, &rect1); + } + } + } + k++; + } + xrdp_bitmap_delete(b); + j += SS; + } + i += SS; + } + xrdp_region_delete(region); + return 0; +} |