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shaped-texture: Use surface coordinates in get_image()
There were multiple bugs present after the ClutterContent transition. Refactor `get_image` to: - always assume surface coordinates for the clip - return a cairo_surface in buffer size - make the offscreen path take size arguments, so we can easily change the assumption in get_image - fix some clipping bugs on the way https://gitlab.gnome.org/GNOME/mutter/merge_requests/758
This commit is contained in:
Robert Mader
Jonas Ådahl
parent
1d2913d9b9
commit
cd70595b50
@ -1114,7 +1114,9 @@ should_get_via_offscreen (MetaShapedTexture *stex)
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static cairo_surface_t *
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get_image_via_offscreen (MetaShapedTexture *stex,
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cairo_rectangle_int_t *clip)
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cairo_rectangle_int_t *clip,
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int image_width,
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int image_height)
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{
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g_autoptr (ClutterPaintNode) root_node = NULL;
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ClutterBackend *clutter_backend = clutter_get_default_backend ();
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@ -1132,16 +1134,16 @@ get_image_via_offscreen (MetaShapedTexture *stex,
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if (!clip)
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{
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fallback_clip = (cairo_rectangle_int_t) {
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.width = stex->dst_width,
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.height = stex->dst_height,
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.width = image_width,
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.height = image_height,
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};
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clip = &fallback_clip;
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}
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image_texture =
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COGL_TEXTURE (cogl_texture_2d_new_with_size (cogl_context,
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stex->dst_width,
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stex->dst_height));
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image_width,
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image_height));
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cogl_primitive_texture_set_auto_mipmap (COGL_PRIMITIVE_TEXTURE (image_texture),
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FALSE);
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if (!cogl_texture_allocate (COGL_TEXTURE (image_texture), &error))
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@ -1164,11 +1166,11 @@ get_image_via_offscreen (MetaShapedTexture *stex,
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cogl_framebuffer_push_matrix (fb);
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cogl_matrix_init_identity (&projection_matrix);
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cogl_matrix_scale (&projection_matrix,
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1.0 / (stex->dst_width / 2.0),
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-1.0 / (stex->dst_height / 2.0), 0);
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1.0 / (image_width / 2.0),
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-1.0 / (image_height / 2.0), 0);
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cogl_matrix_translate (&projection_matrix,
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-(stex->dst_width / 2.0),
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-(stex->dst_height / 2.0), 0);
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-(image_width / 2.0),
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-(image_height / 2.0), 0);
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cogl_framebuffer_set_projection_matrix (fb, &projection_matrix);
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@ -1180,8 +1182,9 @@ get_image_via_offscreen (MetaShapedTexture *stex,
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do_paint_content (stex, root_node,
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stex->texture,
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&(ClutterActorBox) {
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clip->x, clip->y,
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clip->width, clip->height,
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0, 0,
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image_width,
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image_height,
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},
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255);
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@ -1219,7 +1222,7 @@ cairo_surface_t *
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meta_shaped_texture_get_image (MetaShapedTexture *stex,
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cairo_rectangle_int_t *clip)
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{
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cairo_rectangle_int_t *transformed_clip = NULL;
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cairo_rectangle_int_t *image_clip = NULL;
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CoglTexture *texture, *mask_texture;
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cairo_surface_t *surface;
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@ -1239,31 +1242,43 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
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{
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cairo_rectangle_int_t dst_rect;
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transformed_clip = alloca (sizeof (cairo_rectangle_int_t));
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meta_rectangle_scale_double (clip, stex->buffer_scale,
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META_ROUNDING_STRATEGY_GROW,
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transformed_clip);
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image_clip = alloca (sizeof (cairo_rectangle_int_t));
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dst_rect = (cairo_rectangle_int_t) {
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.width = stex->dst_width,
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.height = stex->dst_height,
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};
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if (!meta_rectangle_intersect (&dst_rect, transformed_clip,
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transformed_clip))
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if (!meta_rectangle_intersect (&dst_rect, clip,
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image_clip))
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return NULL;
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*image_clip = (MetaRectangle) {
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.x = image_clip->x * stex->buffer_scale,
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.y = image_clip->y * stex->buffer_scale,
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.width = image_clip->width * stex->buffer_scale,
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.height = image_clip->height * stex->buffer_scale,
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};
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}
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if (should_get_via_offscreen (stex))
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return get_image_via_offscreen (stex, transformed_clip);
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{
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int image_width;
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int image_height;
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if (transformed_clip)
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image_width = stex->dst_width * stex->buffer_scale;
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image_height = stex->dst_height * stex->buffer_scale;
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return get_image_via_offscreen (stex,
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image_clip,
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image_width,
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image_height);
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}
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if (image_clip)
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texture = cogl_texture_new_from_sub_texture (texture,
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transformed_clip->x,
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transformed_clip->y,
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transformed_clip->width,
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transformed_clip->height);
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image_clip->x,
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image_clip->y,
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image_clip->width,
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image_clip->height);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
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cogl_texture_get_width (texture),
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@ -1275,7 +1290,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
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cairo_surface_mark_dirty (surface);
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if (transformed_clip)
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if (image_clip)
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cogl_object_unref (texture);
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mask_texture = stex->mask_texture;
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@ -1284,13 +1299,13 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
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cairo_t *cr;
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cairo_surface_t *mask_surface;
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if (transformed_clip)
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if (image_clip)
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mask_texture =
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cogl_texture_new_from_sub_texture (mask_texture,
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transformed_clip->x,
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transformed_clip->y,
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transformed_clip->width,
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transformed_clip->height);
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image_clip->x,
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image_clip->y,
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image_clip->width,
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image_clip->height);
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mask_surface = cairo_image_surface_create (CAIRO_FORMAT_A8,
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cogl_texture_get_width (mask_texture),
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@ -1310,7 +1325,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
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cairo_surface_destroy (mask_surface);
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if (transformed_clip)
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if (image_clip)
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cogl_object_unref (mask_texture);
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}
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