1 files changed, 106 insertions, 0 deletions
diff --git a/cc/CCDirectRenderer.h b/cc/CCDirectRenderer.h
new file mode 100644
index 0000000..097d5fa
--- /dev/null
+++ b/cc/CCDirectRenderer.h
@@ -0,0 +1,106 @@
+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CCDirectRenderer_h
+#define CCDirectRenderer_h
+
+#include "CCRenderer.h"
+#include "CCResourceProvider.h"
+#include "CCScopedTexture.h"
+
+namespace WebCore {
+
+class CCResourceProvider;
+
+// This is the base class for code shared between the GL and software
+// renderer implementations.  "Direct" refers to the fact that it does not
+// delegate rendering to another compositor.
+class CCDirectRenderer : public CCRenderer {
+    WTF_MAKE_NONCOPYABLE(CCDirectRenderer);
+public:
+    virtual ~CCDirectRenderer() { }
+
+    CCResourceProvider* resourceProvider() const { return m_resourceProvider; }
+
+    virtual void decideRenderPassAllocationsForFrame(const CCRenderPassList& renderPassesInDrawOrder) OVERRIDE;
+    virtual bool haveCachedResourcesForRenderPassId(int id) const OVERRIDE;
+    virtual void drawFrame(const CCRenderPassList& renderPassesInDrawOrder, const CCRenderPassIdHashMap& renderPassesById) OVERRIDE;
+
+protected:
+    CCDirectRenderer(CCRendererClient* client, CCResourceProvider* resourceProvider)
+        : CCRenderer(client)
+        , m_resourceProvider(resourceProvider)
+    {
+    }
+
+    struct DrawingFrame {
+        const CCRenderPassIdHashMap* renderPassesById;
+        const CCRenderPass* rootRenderPass;
+        const CCRenderPass* currentRenderPass;
+        const CCScopedTexture* currentTexture;
+
+        FloatRect rootDamageRect;
+
+        WebKit::WebTransformationMatrix projectionMatrix;
+        WebKit::WebTransformationMatrix windowMatrix;
+        bool flippedY;
+        FloatRect scissorRectInRenderPassSpace;
+
+        DrawingFrame()
+            : rootRenderPass(0)
+            , currentRenderPass(0)
+            , currentTexture(0)
+            , flippedY(false)
+        { }
+    };
+
+    class CachedTexture : public CCScopedTexture {
+        WTF_MAKE_NONCOPYABLE(CachedTexture);
+    public:
+        static PassOwnPtr<CachedTexture> create(CCResourceProvider* resourceProvider) { return adoptPtr(new CachedTexture(resourceProvider)); }
+        virtual ~CachedTexture() { }
+
+        bool isComplete() const { return m_isComplete; }
+        void setIsComplete(bool isComplete) { m_isComplete = isComplete; }
+
+    protected:
+        explicit CachedTexture(CCResourceProvider* resourceProvider)
+            : CCScopedTexture(resourceProvider)
+            , m_isComplete(false)
+        {
+        }
+
+    private:
+        bool m_isComplete;
+    };
+
+    static FloatRect quadVertexRect();
+    static void quadRectTransform(WebKit::WebTransformationMatrix* quadRectTransform, const WebKit::WebTransformationMatrix& quadTransform, const FloatRect& quadRect);
+    static void initializeMatrices(DrawingFrame&, const IntRect& drawRect, bool flipY);
+    static IntRect moveScissorToWindowSpace(const DrawingFrame&, FloatRect scissorRect);
+
+    bool haveCachedResources(int renderPassId) const;
+    static IntSize renderPassTextureSize(const CCRenderPass*);
+    static GC3Denum renderPassTextureFormat(const CCRenderPass*);
+
+    void drawRenderPass(DrawingFrame&, const CCRenderPass*);
+    bool useRenderPass(DrawingFrame&, const CCRenderPass*);
+
+    virtual void bindFramebufferToOutputSurface(DrawingFrame&) = 0;
+    virtual bool bindFramebufferToTexture(DrawingFrame&, const CCScopedTexture*, const IntRect& framebufferRect) = 0;
+    virtual void setDrawViewportSize(const IntSize&) = 0;
+    virtual void enableScissorTestRect(const IntRect& scissorRect) = 0;
+    virtual void disableScissorTest() = 0;
+    virtual void clearFramebuffer(DrawingFrame&) = 0;
+    virtual void drawQuad(DrawingFrame&, const CCDrawQuad*) = 0;
+    virtual void beginDrawingFrame(DrawingFrame&) = 0;
+    virtual void finishDrawingFrame(DrawingFrame&) = 0;
+
+    HashMap<int, OwnPtr<CachedTexture> > m_renderPassTextures;
+    CCResourceProvider* m_resourceProvider;
+};
+
+}
+
+#endif // CCDirectRenderer_h