1 files changed, 68 insertions, 0 deletions
diff --git a/gfx/layers/LayerScope.h b/gfx/layers/LayerScope.h
new file mode 100644
index 000000000..24fde2397
--- /dev/null
+++ b/gfx/layers/LayerScope.h
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim:set ts=4 sw=4 sts=4 et: */
+/* 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/. */
+
+#ifndef GFX_LAYERSCOPE_H
+#define GFX_LAYERSCOPE_H
+
+#include <stdint.h>
+#include <mozilla/UniquePtr.h>
+#include "gfxMatrix.h"
+
+namespace mozilla {
+
+namespace gl { class GLContext; }
+
+namespace layers {
+
+
+namespace layerscope { class Packet; }
+
+struct EffectChain;
+class LayerComposite;
+class TextureHost;
+
+class LayerScope {
+public:
+    static void DrawBegin();
+    static void SetRenderOffset(float aX, float aY);
+    static void SetLayerTransform(const gfx::Matrix4x4& aMatrix);
+    static void SetDrawRects(size_t aRects,
+                             const gfx::Rect* aLayerRects,
+                             const gfx::Rect* aTextureRects);
+    static void DrawEnd(gl::GLContext* aGLContext,
+                        const EffectChain& aEffectChain,
+                        int aWidth,
+                        int aHeight);
+
+    static void SendLayer(LayerComposite* aLayer,
+                          int aWidth,
+                          int aHeight);
+    static void SendLayerDump(UniquePtr<layerscope::Packet> aPacket);
+    static bool CheckSendable();
+    static void CleanLayer();
+    static void SetHWComposed();
+
+    static void SetPixelScale(double devPixelsPerCSSPixel);
+    static void ContentChanged(TextureHost *host);
+private:
+    static void Init();
+};
+
+// Perform BeginFrame and EndFrame automatically
+class LayerScopeAutoFrame {
+public:
+    explicit LayerScopeAutoFrame(int64_t aFrameStamp);
+    ~LayerScopeAutoFrame();
+
+private:
+    static void BeginFrame(int64_t aFrameStamp);
+    static void EndFrame();
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif /* GFX_LAYERSCOPE_H */