Add m-esr52 at 52.6.0

1 files changed, 45 insertions, 0 deletions

diff --git a/gfx/gl/TextureGarbageBin.cpp b/gfx/gl/TextureGarbageBin.cpp
new file mode 100644
index 000000000..89a9c8355
--- /dev/null
+++ b/gfx/gl/TextureGarbageBin.cpp
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "TextureGarbageBin.h"
+#include "GLContext.h"
+
+using namespace mozilla;
+using namespace mozilla::gl;
+
+void
+TextureGarbageBin::GLContextTeardown()
+{
+    EmptyGarbage();
+
+    MutexAutoLock lock(mMutex);
+    mGL = nullptr;
+}
+
+void
+TextureGarbageBin::Trash(GLuint tex)
+{
+    MutexAutoLock lock(mMutex);
+    if (!mGL)
+        return;
+
+    mGarbageTextures.push(tex);
+}
+
+void
+TextureGarbageBin::EmptyGarbage()
+{
+    MutexAutoLock lock(mMutex);
+    if (!mGL)
+        return;
+
+    MOZ_RELEASE_ASSERT(mGL->IsCurrent(), "GFX: GL context not current.");
+    while (!mGarbageTextures.empty()) {
+        GLuint tex = mGarbageTextures.top();
+        mGarbageTextures.pop();
+        mGL->fDeleteTextures(1, &tex);
+    }
+}