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MetaShapedTexture: save and restore textures on suspend
The proprietary nvidia driver garbles GPU memory on suspend. In order to workaround that limitation, this commit copies all textures to host memory on suspend and restores them on resume. One complication comes from external textures (such as those given to us by Xwayland for X clients). We can't just restore those textures, since they aren't writable. This commit addresses that complication by keeping a local texture around for those external textures, and using it instead for parts of the window that haven't been redrawn since resume.
This commit is contained in:
Ray Strode
parent
395d463c08
commit
625ea86672
@ -29,6 +29,7 @@
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#include <meta/meta-shaped-texture.h>
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#include "meta-shaped-texture-private.h"
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#include "meta-texture-rectangle.h"
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#include <cogl/cogl.h>
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#include <gdk/gdk.h> /* for gdk_rectangle_intersect() */
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@ -38,6 +39,7 @@
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#include "core/boxes-private.h"
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#include "meta-cullable.h"
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#include <meta/meta-backend.h>
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static void meta_shaped_texture_dispose (GObject *object);
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@ -55,8 +57,12 @@ static void meta_shaped_texture_get_preferred_height (ClutterActor *self,
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static gboolean meta_shaped_texture_get_paint_volume (ClutterActor *self, ClutterPaintVolume *volume);
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static void disable_backing_store (MetaShapedTexture *stex);
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static void cullable_iface_init (MetaCullableInterface *iface);
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static gboolean meta_debug_show_backing_store = FALSE;
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G_DEFINE_TYPE_WITH_CODE (MetaShapedTexture, meta_shaped_texture, CLUTTER_TYPE_ACTOR,
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G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
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@ -72,6 +78,14 @@ enum {
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static guint signals[LAST_SIGNAL];
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typedef struct
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{
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CoglTexture *texture;
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CoglTexture *mask_texture;
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cairo_surface_t *mask_surface;
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cairo_region_t *region;
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} MetaTextureBackingStore;
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struct _MetaShapedTexturePrivate
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{
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MetaTextureTower *paint_tower;
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@ -93,6 +107,16 @@ struct _MetaShapedTexturePrivate
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cairo_region_t *clip_region;
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cairo_region_t *unobscured_region;
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/* textures get corrupted on suspend, so save them */
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cairo_surface_t *saved_base_surface;
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cairo_surface_t *saved_mask_surface;
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/* We can't just restore external textures, so we need to track
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* which parts of the external texture are freshly drawn from
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* the client after corruption, and fill in the rest from our
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* saved snapshot */
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MetaTextureBackingStore *backing_store;
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guint tex_width, tex_height;
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guint fallback_width, fallback_height;
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@ -120,12 +144,19 @@ meta_shaped_texture_class_init (MetaShapedTextureClass *klass)
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G_TYPE_NONE, 0);
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g_type_class_add_private (klass, sizeof (MetaShapedTexturePrivate));
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if (g_getenv ("MUTTER_DEBUG_BACKING_STORE"))
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meta_debug_show_backing_store = TRUE;
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}
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static void
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meta_shaped_texture_init (MetaShapedTexture *self)
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{
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MetaShapedTexturePrivate *priv;
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MetaBackend *backend = meta_get_backend ();
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ClutterBackend *clutter_backend = clutter_get_default_backend ();
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CoglContext *cogl_context =
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clutter_backend_get_cogl_context (clutter_backend);
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priv = self->priv = META_SHAPED_TEXTURE_GET_PRIVATE (self);
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@ -135,6 +166,12 @@ meta_shaped_texture_init (MetaShapedTexture *self)
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priv->mask_texture = NULL;
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priv->create_mipmaps = TRUE;
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priv->is_y_inverted = TRUE;
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if (cogl_has_feature (cogl_context, COGL_FEATURE_ID_UNSTABLE_TEXTURES))
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{
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g_signal_connect_object (backend, "suspending", G_CALLBACK (meta_shaped_texture_save), self, G_CONNECT_SWAPPED);
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g_signal_connect_object (backend, "resuming", G_CALLBACK (meta_shaped_texture_restore), self, G_CONNECT_SWAPPED);
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}
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}
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static void
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@ -210,25 +247,74 @@ meta_shaped_texture_dispose (GObject *object)
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G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
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}
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static int
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get_layer_indices (MetaShapedTexture *stex,
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int *main_layer_index,
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int *backing_mask_layer_index,
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int *backing_layer_index,
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int *mask_layer_index)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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int next_layer_index = 0;
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if (main_layer_index)
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*main_layer_index = next_layer_index;
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next_layer_index++;
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if (priv->backing_store)
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{
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if (backing_mask_layer_index)
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*backing_mask_layer_index = next_layer_index;
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next_layer_index++;
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if (backing_layer_index)
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*backing_layer_index = next_layer_index;
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next_layer_index++;
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}
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else
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{
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if (backing_mask_layer_index)
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*backing_mask_layer_index = -1;
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if (backing_layer_index)
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*backing_layer_index = -1;
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}
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if (mask_layer_index)
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*mask_layer_index = next_layer_index;
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return next_layer_index;
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}
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static CoglPipeline *
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get_base_pipeline (MetaShapedTexture *stex,
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CoglContext *ctx)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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CoglPipeline *pipeline;
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int main_layer_index;
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int backing_layer_index;
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int backing_mask_layer_index;
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int i, number_of_layers;
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if (priv->base_pipeline)
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return priv->base_pipeline;
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pipeline = cogl_pipeline_new (ctx);
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cogl_pipeline_set_layer_wrap_mode_s (pipeline, 0,
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number_of_layers = get_layer_indices (stex,
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&main_layer_index,
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&backing_mask_layer_index,
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&backing_layer_index,
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NULL);
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for (i = 0; i < number_of_layers; i++)
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{
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cogl_pipeline_set_layer_wrap_mode_s (pipeline, i,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
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cogl_pipeline_set_layer_wrap_mode_t (pipeline, 0,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
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cogl_pipeline_set_layer_wrap_mode_s (pipeline, 1,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
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cogl_pipeline_set_layer_wrap_mode_t (pipeline, 1,
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cogl_pipeline_set_layer_wrap_mode_t (pipeline, i,
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COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
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}
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if (!priv->is_y_inverted)
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{
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CoglMatrix matrix;
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@ -236,11 +322,26 @@ get_base_pipeline (MetaShapedTexture *stex,
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cogl_matrix_init_identity (&matrix);
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cogl_matrix_scale (&matrix, 1, -1, 1);
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cogl_matrix_translate (&matrix, 0, -1, 0);
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cogl_pipeline_set_layer_matrix (pipeline, 0, &matrix);
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cogl_pipeline_set_layer_matrix (pipeline, main_layer_index, &matrix);
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}
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if (priv->backing_store)
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{
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g_autofree char *backing_description = NULL;
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cogl_pipeline_set_layer_combine (pipeline, backing_mask_layer_index,
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"RGBA = REPLACE(PREVIOUS)",
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NULL);
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backing_description = g_strdup_printf ("RGBA = INTERPOLATE(PREVIOUS, TEXTURE_%d, TEXTURE_%d[A])",
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backing_layer_index,
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backing_mask_layer_index);
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cogl_pipeline_set_layer_combine (pipeline,
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backing_layer_index,
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backing_description,
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NULL);
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}
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if (priv->snippet)
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cogl_pipeline_add_layer_snippet (pipeline, 0, priv->snippet);
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cogl_pipeline_add_layer_snippet (pipeline, main_layer_index, priv->snippet);
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priv->base_pipeline = pipeline;
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@ -260,12 +361,15 @@ get_masked_pipeline (MetaShapedTexture *stex,
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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CoglPipeline *pipeline;
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int mask_layer_index;
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if (priv->masked_pipeline)
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return priv->masked_pipeline;
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get_layer_indices (stex, NULL, NULL, NULL, &mask_layer_index);
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pipeline = cogl_pipeline_copy (get_base_pipeline (stex, ctx));
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cogl_pipeline_set_layer_combine (pipeline, 1,
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cogl_pipeline_set_layer_combine (pipeline, mask_layer_index,
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"RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
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NULL);
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@ -340,6 +444,8 @@ set_cogl_texture (MetaShapedTexture *stex,
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if (priv->texture)
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cogl_object_unref (priv->texture);
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g_clear_pointer (&priv->saved_base_surface, cairo_surface_destroy);
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priv->texture = cogl_tex;
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if (cogl_tex != NULL)
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@ -385,6 +491,10 @@ do_paint (MetaShapedTexture *stex,
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CoglContext *ctx;
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ClutterActorBox alloc;
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CoglPipelineFilter filter;
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int main_layer_index;
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int backing_mask_layer_index;
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int backing_layer_index;
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int mask_layer_index;
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tex_width = priv->tex_width;
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tex_height = priv->tex_height;
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@ -447,6 +557,12 @@ do_paint (MetaShapedTexture *stex,
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}
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}
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get_layer_indices (stex,
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&main_layer_index,
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&backing_mask_layer_index,
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&backing_layer_index,
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&mask_layer_index);
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/* First, paint the unblended parts, which are part of the opaque region. */
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if (use_opaque_region)
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{
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@ -468,8 +584,24 @@ do_paint (MetaShapedTexture *stex,
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if (!cairo_region_is_empty (region))
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{
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opaque_pipeline = get_unblended_pipeline (stex, ctx);
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cogl_pipeline_set_layer_texture (opaque_pipeline, 0, paint_tex);
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cogl_pipeline_set_layer_filters (opaque_pipeline, 0, filter, filter);
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cogl_pipeline_set_layer_texture (opaque_pipeline, main_layer_index, paint_tex);
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cogl_pipeline_set_layer_filters (opaque_pipeline, main_layer_index, filter, filter);
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if (priv->backing_store)
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{
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cogl_pipeline_set_layer_texture (opaque_pipeline,
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backing_mask_layer_index,
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priv->backing_store->mask_texture);
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cogl_pipeline_set_layer_filters (opaque_pipeline,
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backing_mask_layer_index,
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filter, filter);
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cogl_pipeline_set_layer_texture (opaque_pipeline,
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backing_layer_index,
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priv->backing_store->texture);
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cogl_pipeline_set_layer_filters (opaque_pipeline,
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backing_layer_index,
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filter, filter);
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}
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n_rects = cairo_region_num_rectangles (region);
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for (i = 0; i < n_rects; i++)
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@ -504,12 +636,28 @@ do_paint (MetaShapedTexture *stex,
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else
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{
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blended_pipeline = get_masked_pipeline (stex, ctx);
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cogl_pipeline_set_layer_texture (blended_pipeline, 1, priv->mask_texture);
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cogl_pipeline_set_layer_filters (blended_pipeline, 1, filter, filter);
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cogl_pipeline_set_layer_texture (blended_pipeline, mask_layer_index, priv->mask_texture);
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cogl_pipeline_set_layer_filters (blended_pipeline, mask_layer_index, filter, filter);
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}
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cogl_pipeline_set_layer_texture (blended_pipeline, 0, paint_tex);
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cogl_pipeline_set_layer_filters (blended_pipeline, 0, filter, filter);
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cogl_pipeline_set_layer_texture (blended_pipeline, main_layer_index, paint_tex);
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cogl_pipeline_set_layer_filters (blended_pipeline, main_layer_index, filter, filter);
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if (priv->backing_store)
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{
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cogl_pipeline_set_layer_texture (blended_pipeline,
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backing_mask_layer_index,
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priv->backing_store->mask_texture);
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cogl_pipeline_set_layer_filters (blended_pipeline,
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backing_mask_layer_index,
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filter, filter);
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cogl_pipeline_set_layer_texture (blended_pipeline,
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backing_layer_index,
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priv->backing_store->texture);
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cogl_pipeline_set_layer_filters (blended_pipeline,
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backing_layer_index,
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filter, filter);
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}
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CoglColor color;
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cogl_color_init_from_4ub (&color, opacity, opacity, opacity, opacity);
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@ -725,6 +873,7 @@ meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
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priv = stex->priv;
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g_clear_pointer (&priv->mask_texture, cogl_object_unref);
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g_clear_pointer (&priv->saved_mask_surface, cairo_surface_destroy);
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if (mask_texture != NULL)
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{
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@ -746,6 +895,66 @@ meta_shaped_texture_is_obscured (MetaShapedTexture *self)
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return FALSE;
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}
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static void
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meta_texture_backing_store_redraw_mask (MetaTextureBackingStore *backing_store)
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{
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CoglError *error = NULL;
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if (!cogl_texture_set_data (backing_store->mask_texture, COGL_PIXEL_FORMAT_A_8,
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cairo_image_surface_get_stride (backing_store->mask_surface),
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cairo_image_surface_get_data (backing_store->mask_surface), 0,
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&error))
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{
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g_warning ("Failed to update backing mask texture");
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g_clear_pointer (&error, cogl_error_free);
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}
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}
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static gboolean
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meta_texture_backing_store_shrink (MetaTextureBackingStore *backing_store,
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const cairo_rectangle_int_t *area)
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{
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cairo_t *cr;
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cairo_region_subtract_rectangle (backing_store->region, area);
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/* If the client has finally redrawn the entire surface, we can
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* ditch our snapshot
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*/
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if (cairo_region_is_empty (backing_store->region))
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return FALSE;
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cr = cairo_create (backing_store->mask_surface);
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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cairo_paint (cr);
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gdk_cairo_region (cr, backing_store->region);
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cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
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cairo_fill (cr);
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cairo_destroy (cr);
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meta_texture_backing_store_redraw_mask (backing_store);
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return TRUE;
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}
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static void
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shrink_backing_region (MetaShapedTexture *stex,
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const cairo_rectangle_int_t *area)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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gboolean still_backing_texture;
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if (!priv->backing_store)
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return;
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still_backing_texture =
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meta_texture_backing_store_shrink (priv->backing_store, area);
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if (!still_backing_texture)
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disable_backing_store (stex);
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}
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/**
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* meta_shaped_texture_update_area:
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* @stex: #MetaShapedTexture
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@ -775,6 +984,8 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
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if (priv->texture == NULL)
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return FALSE;
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shrink_backing_region (stex, &clip);
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meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
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unobscured_region = effective_unobscured_region (stex);
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@ -920,7 +1131,8 @@ 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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CoglTexture **texture)
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{
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MetaShapedTexturePrivate *priv = stex->priv;
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ClutterBackend *clutter_backend = clutter_get_default_backend ();
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@ -1015,9 +1227,29 @@ get_image_via_offscreen (MetaShapedTexture *stex,
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clip->width, clip->height,
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CLUTTER_CAIRO_FORMAT_ARGB32,
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cairo_image_surface_get_data (surface));
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cairo_surface_mark_dirty (surface);
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if (texture)
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{
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*texture = cogl_object_ref (image_texture);
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if (G_UNLIKELY (meta_debug_show_backing_store))
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{
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cairo_t *cr;
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cr = cairo_create (surface);
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cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 0.75);
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cairo_paint (cr);
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cairo_destroy (cr);
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}
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cogl_texture_set_data (*texture, CLUTTER_CAIRO_FORMAT_ARGB32,
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cairo_image_surface_get_stride (surface),
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cairo_image_surface_get_data (surface), 0, NULL);
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}
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cogl_object_unref (fb);
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cairo_surface_mark_dirty (surface);
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|
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return surface;
|
||||
}
|
||||
@ -1078,7 +1310,7 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
|
||||
}
|
||||
|
||||
if (should_get_via_offscreen (stex))
|
||||
return get_image_via_offscreen (stex, transformed_clip);
|
||||
return get_image_via_offscreen (stex, transformed_clip, NULL);
|
||||
|
||||
if (transformed_clip)
|
||||
texture = cogl_texture_new_from_sub_texture (texture,
|
||||
@ -1139,6 +1371,226 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
|
||||
return surface;
|
||||
}
|
||||
|
||||
static void
|
||||
meta_texture_backing_store_free (MetaTextureBackingStore *backing_store)
|
||||
{
|
||||
g_clear_pointer (&backing_store->texture, cogl_object_unref);
|
||||
g_clear_pointer (&backing_store->mask_texture, cogl_object_unref);
|
||||
g_clear_pointer (&backing_store->mask_surface, cairo_surface_destroy);
|
||||
g_clear_pointer (&backing_store->region, cairo_region_destroy);
|
||||
|
||||
g_slice_free (MetaTextureBackingStore, backing_store);
|
||||
}
|
||||
|
||||
static MetaTextureBackingStore *
|
||||
meta_texture_backing_store_new (CoglTexture *texture)
|
||||
{
|
||||
MetaTextureBackingStore *backing_store = NULL;
|
||||
ClutterBackend *backend = clutter_get_default_backend ();
|
||||
CoglContext *context = clutter_backend_get_cogl_context (backend);
|
||||
CoglTexture *mask_texture = NULL;
|
||||
guchar *mask_data;
|
||||
int width, height, stride;
|
||||
cairo_surface_t *surface;
|
||||
cairo_region_t *region;
|
||||
cairo_rectangle_int_t backing_rectangle;
|
||||
|
||||
width = cogl_texture_get_width (texture);
|
||||
height = cogl_texture_get_height (texture);
|
||||
stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8, width);
|
||||
|
||||
/* we start off by only letting the backing texture through, and none of the real texture */
|
||||
backing_rectangle.x = 0;
|
||||
backing_rectangle.y = 0;
|
||||
backing_rectangle.width = width;
|
||||
backing_rectangle.height = height;
|
||||
|
||||
region = cairo_region_create_rectangle (&backing_rectangle);
|
||||
|
||||
/* initialize mask to transparent, so the entire backing store shows through
|
||||
* up front
|
||||
*/
|
||||
mask_data = g_malloc0 (stride * height);
|
||||
surface = cairo_image_surface_create_for_data (mask_data,
|
||||
CAIRO_FORMAT_A8,
|
||||
width,
|
||||
height,
|
||||
stride);
|
||||
|
||||
if (meta_texture_rectangle_check (texture))
|
||||
{
|
||||
mask_texture = COGL_TEXTURE (cogl_texture_rectangle_new_with_size (context,
|
||||
width,
|
||||
height));
|
||||
cogl_texture_set_components (mask_texture, COGL_TEXTURE_COMPONENTS_A);
|
||||
cogl_texture_set_region (mask_texture,
|
||||
0, 0,
|
||||
0, 0,
|
||||
width, height,
|
||||
width, height,
|
||||
COGL_PIXEL_FORMAT_A_8,
|
||||
stride, mask_data);
|
||||
}
|
||||
else
|
||||
{
|
||||
CoglError *error = NULL;
|
||||
|
||||
mask_texture = COGL_TEXTURE (cogl_texture_2d_new_from_data (context, width, height,
|
||||
COGL_PIXEL_FORMAT_A_8,
|
||||
stride, mask_data, &error));
|
||||
|
||||
if (error)
|
||||
{
|
||||
g_warning ("Failed to allocate mask texture: %s", error->message);
|
||||
cogl_error_free (error);
|
||||
}
|
||||
}
|
||||
|
||||
if (mask_texture)
|
||||
{
|
||||
backing_store = g_slice_new0 (MetaTextureBackingStore);
|
||||
backing_store->texture = cogl_object_ref (texture);
|
||||
backing_store->mask_texture = mask_texture;
|
||||
backing_store->mask_surface = surface;
|
||||
backing_store->region = region;
|
||||
}
|
||||
|
||||
return backing_store;
|
||||
}
|
||||
|
||||
static void
|
||||
enable_backing_store (MetaShapedTexture *stex,
|
||||
CoglTexture *texture)
|
||||
{
|
||||
MetaShapedTexturePrivate *priv = stex->priv;
|
||||
|
||||
g_clear_pointer (&priv->backing_store, meta_texture_backing_store_free);
|
||||
|
||||
priv->backing_store = meta_texture_backing_store_new (texture);
|
||||
|
||||
meta_shaped_texture_reset_pipelines (stex);
|
||||
}
|
||||
|
||||
static void
|
||||
disable_backing_store (MetaShapedTexture *stex)
|
||||
{
|
||||
MetaShapedTexturePrivate *priv = stex->priv;
|
||||
|
||||
g_clear_pointer (&priv->backing_store, meta_texture_backing_store_free);
|
||||
|
||||
meta_shaped_texture_reset_pipelines (stex);
|
||||
}
|
||||
|
||||
void
|
||||
meta_shaped_texture_save (MetaShapedTexture *stex)
|
||||
{
|
||||
|
||||
CoglTexture *texture, *mask_texture;
|
||||
MetaShapedTexturePrivate *priv = stex->priv;
|
||||
cairo_surface_t *surface;
|
||||
|
||||
g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
|
||||
|
||||
texture = COGL_TEXTURE (priv->texture);
|
||||
|
||||
if (texture == NULL)
|
||||
return;
|
||||
|
||||
g_clear_pointer (&priv->saved_base_surface, cairo_surface_destroy);
|
||||
g_clear_pointer (&priv->saved_mask_surface, cairo_surface_destroy);
|
||||
g_clear_pointer (&priv->backing_store, meta_texture_backing_store_free);
|
||||
|
||||
if (should_get_via_offscreen (stex))
|
||||
{
|
||||
CoglTexture *backing_texture;
|
||||
|
||||
meta_shaped_texture_reset_pipelines (stex);
|
||||
|
||||
surface = get_image_via_offscreen (stex, NULL, &backing_texture);
|
||||
|
||||
enable_backing_store (stex, backing_texture);
|
||||
cogl_object_unref (backing_texture);
|
||||
}
|
||||
else
|
||||
{
|
||||
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
||||
cogl_texture_get_width (texture),
|
||||
cogl_texture_get_height (texture));
|
||||
|
||||
cogl_texture_get_data (texture, CLUTTER_CAIRO_FORMAT_ARGB32,
|
||||
cairo_image_surface_get_stride (surface),
|
||||
cairo_image_surface_get_data (surface));
|
||||
}
|
||||
|
||||
priv->saved_base_surface = surface;
|
||||
|
||||
mask_texture = stex->priv->mask_texture;
|
||||
if (mask_texture != NULL)
|
||||
{
|
||||
cairo_surface_t *mask_surface;
|
||||
|
||||
mask_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
|
||||
cogl_texture_get_width (mask_texture),
|
||||
cogl_texture_get_height (mask_texture));
|
||||
|
||||
cogl_texture_get_data (mask_texture, CLUTTER_CAIRO_FORMAT_ARGB32,
|
||||
cairo_image_surface_get_stride (mask_surface),
|
||||
cairo_image_surface_get_data (mask_surface));
|
||||
|
||||
cairo_surface_mark_dirty (mask_surface);
|
||||
|
||||
priv->saved_mask_surface = mask_surface;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
meta_shaped_texture_restore (MetaShapedTexture *stex)
|
||||
{
|
||||
MetaShapedTexturePrivate *priv = stex->priv;
|
||||
CoglTexture *texture;
|
||||
CoglError *error = NULL;
|
||||
|
||||
texture = meta_shaped_texture_get_texture (stex);
|
||||
|
||||
if (texture == NULL)
|
||||
return;
|
||||
|
||||
if (priv->mask_texture)
|
||||
{
|
||||
if (!cogl_texture_set_data (priv->mask_texture, CLUTTER_CAIRO_FORMAT_ARGB32,
|
||||
cairo_image_surface_get_stride (priv->saved_mask_surface),
|
||||
cairo_image_surface_get_data (priv->saved_mask_surface), 0,
|
||||
&error))
|
||||
{
|
||||
g_warning ("Failed to restore mask texture");
|
||||
g_clear_pointer (&error, cogl_error_free);
|
||||
}
|
||||
g_clear_pointer (&priv->saved_mask_surface, cairo_surface_destroy);
|
||||
}
|
||||
|
||||
/* if the main texture doesn't support direct writes, then
|
||||
* write to the local backing texture instead, and blend old
|
||||
* versus new at paint time.
|
||||
*/
|
||||
if (priv->backing_store)
|
||||
{
|
||||
meta_texture_backing_store_redraw_mask (priv->backing_store);
|
||||
texture = priv->backing_store->texture;
|
||||
}
|
||||
|
||||
if (!cogl_texture_set_data (texture, CLUTTER_CAIRO_FORMAT_ARGB32,
|
||||
cairo_image_surface_get_stride (priv->saved_base_surface),
|
||||
cairo_image_surface_get_data (priv->saved_base_surface), 0,
|
||||
&error))
|
||||
{
|
||||
g_warning ("Failed to restore texture");
|
||||
g_clear_pointer (&error, cogl_error_free);
|
||||
}
|
||||
g_clear_pointer (&priv->saved_base_surface, cairo_surface_destroy);
|
||||
|
||||
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
|
||||
}
|
||||
|
||||
void
|
||||
meta_shaped_texture_set_fallback_size (MetaShapedTexture *self,
|
||||
guint fallback_width,
|
||||
|
||||
@ -81,6 +81,8 @@ void meta_shaped_texture_set_opaque_region (MetaShapedTexture *stex,
|
||||
cairo_surface_t * meta_shaped_texture_get_image (MetaShapedTexture *stex,
|
||||
cairo_rectangle_int_t *clip);
|
||||
|
||||
void meta_shaped_texture_save (MetaShapedTexture *self);
|
||||
void meta_shaped_texture_restore (MetaShapedTexture *self);
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __META_SHAPED_TEXTURE_H__ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user