Revert "Delete CC."

cc/output/renderer.h

+// 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 CC_OUTPUT_RENDERER_H_
+#define CC_OUTPUT_RENDERER_H_
+
+#include "base/basictypes.h"
+#include "cc/base/scoped_ptr_vector.h"
+#include "cc/output/renderer_capabilities.h"
+#include "cc/output/renderer_settings.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace cc {
+
+class CompositorFrameAck;
+class CompositorFrameMetadata;
+class RenderPass;
+class RenderPassId;
+class ScopedResource;
+class Task;
+
+typedef ScopedPtrVector<RenderPass> RenderPassList;
+
+struct RendererCapabilitiesImpl {
+  RendererCapabilitiesImpl();
+  ~RendererCapabilitiesImpl();
+
+  // Capabilities copied to main thread.
+  ResourceFormat best_texture_format;
+  bool allow_partial_texture_updates;
+  int max_texture_size;
+  bool using_shared_memory_resources;
+
+  // Capabilities used on compositor thread only.
+  bool using_partial_swap;
+  bool using_egl_image;
+  bool using_image;
+  bool using_discard_framebuffer;
+  bool allow_rasterize_on_demand;
+
+  RendererCapabilities MainThreadCapabilities() const;
+};
+
+class RendererClient {
+ public:
+  virtual void SetFullRootLayerDamage() = 0;
+};
+
+class Renderer {
+ public:
+  virtual ~Renderer() {}
+
+  virtual const RendererCapabilitiesImpl& Capabilities() const = 0;
+
+  virtual void DecideRenderPassAllocationsForFrame(
+      const RenderPassList& render_passes_in_draw_order) {}
+  virtual bool HasAllocatedResourcesForTesting(RenderPassId id) const;
+
+  // This passes ownership of the render passes to the renderer. It should
+  // consume them, and empty the list. The parameters here may change from frame
+  // to frame and should not be cached.
+  // The |device_viewport_rect| and |device_clip_rect| are in non-y-flipped
+  // window space.
+  virtual void DrawFrame(RenderPassList* render_passes_in_draw_order,
+                         float device_scale_factor,
+                         const gfx::Rect& device_viewport_rect,
+                         const gfx::Rect& device_clip_rect,
+                         bool disable_picture_quad_image_filtering) = 0;
+
+  // Waits for rendering to finish.
+  virtual void Finish() = 0;
+
+  virtual void DoNoOp() {}
+
+  // Puts backbuffer onscreen.
+  virtual void SwapBuffers(const CompositorFrameMetadata& metadata) = 0;
+  virtual void ReceiveSwapBuffersAck(const CompositorFrameAck& ack) {}
+
+  bool visible() const { return visible_; }
+  void SetVisible(bool visible);
+
+ protected:
+  Renderer(RendererClient* client, const RendererSettings* settings)
+      : client_(client), settings_(settings), visible_(true) {}
+
+  virtual void DidChangeVisibility() = 0;
+
+  RendererClient* client_;
+  const RendererSettings* settings_;
+  bool visible_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(Renderer);
+};
+
+}  // namespace cc
+
+#endif  // CC_OUTPUT_RENDERER_H_