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Use cairo_push_group() for all double buffering, drop window_copy_*()

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This commit is contained in:
Kristian Høgsberg 2011-01-21 11:35:05 -05:00
parent f39a9ccbb3
commit e164e4ef72
4 changed files with 24 additions and 55 deletions
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23
clients/image.c
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@ -140,7 +140,7 @@ image_draw(struct image *image)
struct rectangle allocation;
GdkPixbuf *pb;
cairo_t *cr;
cairo_surface_t *wsurface, *surface;
cairo_surface_t *surface;
window_draw(image->window);
@ -153,14 +153,15 @@ image_draw(struct image *image)
if (pb == NULL)
return;
wsurface = window_get_surface(image->window);
surface = cairo_surface_create_similar(wsurface,
CAIRO_CONTENT_COLOR_ALPHA,
allocation.width,
allocation.height);
cairo_surface_destroy(wsurface);
surface = window_get_surface(image->window);
cr = cairo_create(surface);
window_get_child_allocation(image->window, &allocation);
cairo_rectangle(cr, allocation.x, allocation.y,
allocation.width, allocation.height);
cairo_clip(cr);
cairo_push_group(cr);
cairo_translate(cr, allocation.x, allocation.y);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 1);
cairo_paint(cr);
@ -169,11 +170,13 @@ image_draw(struct image *image)
allocation.width, allocation.height);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_paint(cr);
cairo_destroy(cr);
g_object_unref(pb);
window_copy_surface(image->window, &allocation, surface);
cairo_pop_group_to_source(cr);
cairo_paint(cr);
cairo_destroy(cr);
window_flush(image->window);
cairo_surface_destroy(surface);
}