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Convert cairo canvas group_start/end to pixman

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This commit is contained in:
Alexander Larsson 2010-02-17 16:09:27 +01:00
parent 69fc5f57a7
commit d07c401de4
1 changed files with 18 additions and 14 deletions
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32
cairo_canvas.c
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@ -2139,26 +2139,30 @@ void canvas_read_bits(CairoCanvas *canvas, uint8_t *dest, int dest_stride, const
void canvas_group_start(CairoCanvas *canvas, int n_clip_rects, SpiceRect *clip_rects)
{
cairo_t *cairo = canvas->cairo;
pixman_region32_t dest_region;
cairo_save(cairo);
pixman_region32_fini(&canvas->canvas_region);
spice_pixman_region32_init_rects(&canvas->canvas_region,
clip_rects, n_clip_rects);
if (n_clip_rects) {
SpiceRect *end = clip_rects + n_clip_rects;
for (; clip_rects < end; clip_rects++) {
cairo_rectangle(cairo,
clip_rects->left,
clip_rects->top,
clip_rects->right - clip_rects->left,
clip_rects->bottom - clip_rects->top);
}
cairo_clip(cairo);
}
pixman_region32_init_rect(&dest_region,
0, 0,
pixman_image_get_width(canvas->image),
pixman_image_get_height(canvas->image));
/* Make sure we always clip to canvas size */
pixman_region32_intersect(&canvas->canvas_region, &canvas->canvas_region, &dest_region);
pixman_region32_fini(&dest_region);
}
void canvas_group_end(CairoCanvas *canvas)
{
cairo_restore(canvas->cairo);
pixman_region32_fini(&canvas->canvas_region);
pixman_region32_init_rect(&canvas->canvas_region,
0, 0,
pixman_image_get_width(canvas->image),
pixman_image_get_height(canvas->image));
}
void canvas_clear(CairoCanvas *canvas)