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shaped-texture: Don't change the callers clip rect

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We intersected the callers clip rect. That is probably not a good idea,
and easily avoided, so lets avoid it.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/362
This commit is contained in:
Jonas Ådahl 2018-12-20 17:32:27 +01:00 committed by Ray Strode
parent a53eb8dcbd
commit 1fe3adcd95
1 changed files with 20 additions and 16 deletions
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36
src/compositor/meta-shaped-texture.c
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@ -925,6 +925,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
cairo_rectangle_int_t *clip)
{
MetaShapedTexturePrivate *priv = stex->priv;
cairo_rectangle_int_t *transformed_clip = NULL;
CoglTexture *texture, *mask_texture;
cairo_rectangle_int_t texture_rect = { 0, 0, 0, 0 };
cairo_surface_t *surface;
@ -936,21 +937,23 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
if (texture == NULL)
return NULL;
texture_rect.width = cogl_texture_get_width (texture);
texture_rect.height = cogl_texture_get_height (texture);
if (clip != NULL)
{
if (!meta_rectangle_intersect (&texture_rect, clip, clip))
transformed_clip = alloca (sizeof (cairo_rectangle_int_t));
*transformed_clip = *clip;
if (!meta_rectangle_intersect (&texture_rect, transformed_clip,
transformed_clip))
return NULL;
}
if (clip != NULL)
if (transformed_clip)
texture = cogl_texture_new_from_sub_texture (texture,
clip->x,
clip->y,
clip->width,
clip->height);
transformed_clip->x,
transformed_clip->y,
transformed_clip->width,
transformed_clip->height);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
cogl_texture_get_width (texture),
@ -962,7 +965,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
cairo_surface_mark_dirty (surface);
if (clip != NULL)
if (transformed_clip)
cogl_object_unref (texture);
mask_texture = priv->mask_texture;
@ -971,12 +974,13 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
cairo_t *cr;
cairo_surface_t *mask_surface;
if (clip != NULL)
mask_texture = cogl_texture_new_from_sub_texture (mask_texture,
clip->x,
clip->y,
clip->width,
clip->height);
if (transformed_clip)
mask_texture =
cogl_texture_new_from_sub_texture (mask_texture,
transformed_clip->x,
transformed_clip->y,
transformed_clip->width,
transformed_clip->height);
mask_surface = cairo_image_surface_create (CAIRO_FORMAT_A8,
cogl_texture_get_width (mask_texture),
@ -996,7 +1000,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
cairo_surface_destroy (mask_surface);
if (clip != NULL)
if (transformed_clip)
cogl_object_unref (mask_texture);
}