shaped-texture: Remove mask texture handling from get_image()

It has been broken for a long time now, not handling shadows of
SSD clients well. Instead, just use the offscreen code paths.

Closes https://gitlab.gnome.org/GNOME/mutter/-/issues/1110

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1996>
This commit is contained in:
Robert Mader 2021-09-09 12:44:47 +02:00 committed by Marge Bot
parent 1031de5605
commit 8bf87a7e73

View File

@ -1346,6 +1346,9 @@ meta_shaped_texture_reset_viewport_dst_size (MetaShapedTexture *stex)
gboolean gboolean
meta_shaped_texture_should_get_via_offscreen (MetaShapedTexture *stex) meta_shaped_texture_should_get_via_offscreen (MetaShapedTexture *stex)
{ {
if (stex->mask_texture != NULL)
return TRUE;
if (!cogl_texture_is_get_data_supported (stex->texture)) if (!cogl_texture_is_get_data_supported (stex->texture))
return TRUE; return TRUE;
@ -1388,7 +1391,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
cairo_rectangle_int_t *clip) cairo_rectangle_int_t *clip)
{ {
cairo_rectangle_int_t *image_clip = NULL; cairo_rectangle_int_t *image_clip = NULL;
CoglTexture *texture, *mask_texture; CoglTexture *texture;
cairo_surface_t *surface; cairo_surface_t *surface;
g_return_val_if_fail (META_IS_SHAPED_TEXTURE (stex), NULL); g_return_val_if_fail (META_IS_SHAPED_TEXTURE (stex), NULL);
@ -1448,42 +1451,6 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
if (image_clip) if (image_clip)
cogl_object_unref (texture); cogl_object_unref (texture);
mask_texture = stex->mask_texture;
if (mask_texture != NULL)
{
cairo_t *cr;
cairo_surface_t *mask_surface;
if (image_clip)
mask_texture =
cogl_texture_new_from_sub_texture (mask_texture,
image_clip->x,
image_clip->y,
image_clip->width,
image_clip->height);
mask_surface = cairo_image_surface_create (CAIRO_FORMAT_A8,
cogl_texture_get_width (mask_texture),
cogl_texture_get_height (mask_texture));
cogl_texture_get_data (mask_texture, COGL_PIXEL_FORMAT_A_8,
cairo_image_surface_get_stride (mask_surface),
cairo_image_surface_get_data (mask_surface));
cairo_surface_mark_dirty (mask_surface);
cr = cairo_create (surface);
cairo_set_source_surface (cr, mask_surface, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (mask_surface);
if (image_clip)
cogl_object_unref (mask_texture);
}
return surface; return surface;
} }