Refactor recent changes to SharedTexture and TilesManager.

These changes are directly related to the comments found in this
CL --> https://android-git.corp.google.com/g/#change,83984

Change-Id: Ida0acb772f9bcaa4f4f5b394676d45b27f4149d2

1 files changed, 19 insertions, 1 deletions

diff --git a/WebCore/platform/graphics/android/BackedDoubleBufferedTexture.cpp b/WebCore/platform/graphics/android/BackedDoubleBufferedTexture.cpp
index 02168a9..ced0c2e 100644
--- a/WebCore/platform/graphics/android/BackedDoubleBufferedTexture.cpp
+++ b/WebCore/platform/graphics/android/BackedDoubleBufferedTexture.cpp
@@ -25,8 +25,9 @@
 
 #include "config.h"
 #include "BackedDoubleBufferedTexture.h"
-
 #include "BaseTile.h"
+#include "DeleteTextureOperation.h"
+#include "TilesManager.h"
 #include "GLUtils.h"
 
 #define LOG_NDEBUG 1
@@ -54,6 +55,23 @@ BackedDoubleBufferedTexture::~BackedDoubleBufferedTexture()
     delete m_canvas;
 }
 
+void BackedDoubleBufferedTexture::onDestroy(SharedTexture** textures)
+{
+    int x = 0;
+    while (textures[x] != 0) {
+        // We need to delete the source texture and EGLImage in the texture
+        // generation thread. In theory we should be able to delete the EGLImage
+        // from either thread, but it currently throws an error if not deleted
+        // in the same EGLContext from which it was created.
+        textures[x]->lock();
+        DeleteTextureOperation* operation = new DeleteTextureOperation(
+            textures[x]->getSourceTextureId(), textures[x]->getEGLImage());
+        textures[x]->unlock();
+        TilesManager::instance()->scheduleOperation(operation);
+        x++;
+    }
+}
+
 TextureInfo* BackedDoubleBufferedTexture::producerLock()
 {
     m_busyLock.lock();