package/weston/0011-HACK-gl-renderer-Support-making-hole-for-surface.patch

4 Subject: [PATCH 11/79] HACK: gl-renderer: Support making hole for surface
22 +	/* Transparent hole region(excluding it's lower subsurface area) */
23 +	pixman_region32_t hole;
35 +	pixman_region32_init(&surface->hole);
43 +	pixman_region32_fini(&surface->hole);
53 +		 * HACK: Make a hole for this surface
55 +		 * 1/ Set the hole region
56 +		 *  wl_region_add(region, [hole region]);
57 +		 * 2/ Add a special rect to mark the region as a hole
63 +			pixman_region32_t hole;
66 +			pixman_region32_init_rect(&hole, -1, -1, 1, 1);
67 +			pixman_region32_subtract(&hole, &region->region,
68 +						 &hole);
70 +			pixman_region32_copy(&surface->hole, &hole);
71 +			pixman_region32_fini(&hole);
73 +			// Trigger repaint to apply the hole
136 +	// HACK: Make hole for the surface(excluding it's lower subsurface area)
137 +	if (pixman_region32_not_empty(&pnode->surface->hole)) {
139 +		pixman_region32_t hole, region;
154 +		pixman_region32_subtract(&region, &pnode->surface->hole, &region);
155 +		pixman_region32_init(&hole);
156 +		weston_view_to_global_region(pnode->view, &region, &hole);
158 +		pixman_region32_intersect(&hole, &hole, &repaint);
160 +		weston_output_region_from_global(pnode->output, &hole);
161 +		clear_region(pnode->view, &hole);
163 +		pixman_region32_fini(&hole);