From 4b2e0247af3ba026ff982e51ca00eba9ce05b9da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
Date: Tue, 17 Apr 2018 04:53:02 -0500
Subject: [PATCH] st-texture-cache: Save cairo surfaces to a different map

The default keyed_surface is meant to handle CoglTextures thus we can't
add cairo surfaces to it, as the DestroyNotify function won't handle them.

Then the quicker way is to just add another Hash table for handling
such types of textures, with proper destroy function.


(cherry picked from commit 1f03599d1cf888f73a33363212b99905064e2c9e)
---
 src/st/st-texture-cache.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/st/st-texture-cache.c b/src/st/st-texture-cache.c
index 58185120e..0c794a3ab 100644
--- a/src/st/st-texture-cache.c
+++ b/src/st/st-texture-cache.c
@@ -37,6 +37,7 @@ struct _StTextureCachePrivate
 
   /* Things that were loaded with a cache policy != NONE */
   GHashTable *keyed_cache; /* char * -> CoglTexture* */
+  GHashTable *keyed_surface_cache; /* char * -> cairo_surface_t* */
 
   /* Presently this is used to de-duplicate requests for GIcons and async URIs. */
   GHashTable *outstanding_requests; /* char * -> AsyncTextureLoadData * */
@@ -145,6 +146,10 @@ st_texture_cache_init (StTextureCache *self)
 
   self->priv->keyed_cache = g_hash_table_new_full (g_str_hash, g_str_equal,
                                                    g_free, cogl_object_unref);
+  self->priv->keyed_surface_cache = g_hash_table_new_full (g_str_hash,
+                                                           g_str_equal,
+                                                           g_free,
+                                                           (GDestroyNotify) cairo_surface_destroy);
   self->priv->outstanding_requests = g_hash_table_new_full (g_str_hash, g_str_equal,
                                                             g_free, NULL);
   self->priv->file_monitors = g_hash_table_new_full (g_file_hash, (GEqualFunc) g_file_equal,
@@ -166,6 +171,7 @@ st_texture_cache_dispose (GObject *object)
     }
 
   g_clear_pointer (&self->priv->keyed_cache, g_hash_table_destroy);
+  g_clear_pointer (&self->priv->keyed_surface_cache, g_hash_table_destroy);
   g_clear_pointer (&self->priv->outstanding_requests, g_hash_table_destroy);
   g_clear_pointer (&self->priv->file_monitors, g_hash_table_destroy);
 
@@ -988,7 +994,7 @@ file_changed_cb (GFileMonitor      *monitor,
   g_free (key);
 
   key = g_strdup_printf (CACHE_PREFIX_FILE_FOR_CAIRO "%u", file_hash);
-  g_hash_table_remove (cache->priv->keyed_cache, key);
+  g_hash_table_remove (cache->priv->keyed_surface_cache, key);
   g_free (key);
 
   g_signal_emit (cache, signals[TEXTURE_FILE_CHANGED], 0, file);
@@ -1309,7 +1315,7 @@ st_texture_cache_load_file_sync_to_cairo_surface (StTextureCache        *cache,
 
   key = g_strdup_printf (CACHE_PREFIX_FILE_FOR_CAIRO "%u", g_file_hash (file));
 
-  surface = g_hash_table_lookup (cache->priv->keyed_cache, key);
+  surface = g_hash_table_lookup (cache->priv->keyed_surface_cache, key);
 
   if (surface == NULL)
     {
@@ -1323,7 +1329,8 @@ st_texture_cache_load_file_sync_to_cairo_surface (StTextureCache        *cache,
       if (policy == ST_TEXTURE_CACHE_POLICY_FOREVER)
         {
           cairo_surface_reference (surface);
-          g_hash_table_insert (cache->priv->keyed_cache, g_strdup (key), surface);
+          g_hash_table_insert (cache->priv->keyed_surface_cache,
+                               g_strdup (key), surface);
         }
     }
   else