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shaped-texture: Fix damage propagation for rotated transforms with viewport

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When a viewport source rect or destination size is set, `stex->dst_width`
gives us the the cropped and/or scaled size. At this step, we need the
uncropped/unscaled size however.

Note: this is only ever relevant if buffer transform and viewport are
used together - otherwise the values are the same.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1836>
This commit is contained in:
Robert Mader 2021-04-20 14:56:56 +02:00
parent 99abb086fb
commit 7d3e2c5f9c
1 changed files with 16 additions and 5 deletions
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21
src/compositor/meta-shaped-texture.c
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@ -989,6 +989,8 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
cairo_rectangle_int_t *clip)
{
MetaMonitorTransform inverted_transform;
int scaled_and_transformed_width;
int scaled_and_transformed_height;
if (stex->texture == NULL)
return FALSE;
@ -1005,12 +1007,21 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
META_ROUNDING_STRATEGY_GROW,
clip);
if (meta_monitor_transform_is_rotated (stex->transform))
{
scaled_and_transformed_width = stex->tex_height / stex->buffer_scale;
scaled_and_transformed_height = stex->tex_width / stex->buffer_scale;
}
else
{
scaled_and_transformed_width = stex->tex_width / stex->buffer_scale;
scaled_and_transformed_height = stex->tex_height / stex->buffer_scale;
}
inverted_transform = meta_monitor_transform_invert (stex->transform);
meta_shaped_texture_ensure_size_valid (stex);
meta_rectangle_transform (clip,
inverted_transform,
stex->dst_width,
stex->dst_height,
scaled_and_transformed_width,
scaled_and_transformed_height,
clip);
if (stex->has_viewport_src_rect || stex->has_viewport_dst_size)
@ -1031,8 +1042,8 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
viewport = (graphene_rect_t) {
.origin.x = 0,
.origin.y = 0,
.size.width = stex->tex_width / stex->buffer_scale,
.size.height = stex->tex_height / stex->buffer_scale,
.size.width = scaled_and_transformed_width,
.size.height = scaled_and_transformed_height,
};
}