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// 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 CCRenderer_h
#define CCRenderer_h
#include "CCLayerTreeHost.h"
#include "managed_memory_policy.h"
#include "FloatQuad.h"
#include "base/basictypes.h"
#include "cc/render_pass.h"
namespace cc {
class ScopedTexture;
class RendererClient {
public:
virtual const IntSize& deviceViewportSize() const = 0;
virtual const LayerTreeSettings& settings() const = 0;
virtual void didLoseContext() = 0;
virtual void onSwapBuffersComplete() = 0;
virtual void setFullRootLayerDamage() = 0;
virtual void setManagedMemoryPolicy(const ManagedMemoryPolicy& policy) = 0;
virtual void enforceManagedMemoryPolicy(const ManagedMemoryPolicy& policy) = 0;
protected:
virtual ~RendererClient() { }
};
class Renderer {
public:
// This enum defines the various resource pools for the ResourceProvider
// where textures get allocated.
enum ResourcePool {
ImplPool = 1, // This pool is for textures that get allocated on the impl thread (e.g. RenderSurfaces).
ContentPool // This pool is for textures that get allocated on the main thread (e.g. tiles).
};
virtual ~Renderer() { }
virtual const RendererCapabilities& capabilities() const = 0;
const LayerTreeSettings& settings() const { return m_client->settings(); }
gfx::Size viewportSize() { return m_client->deviceViewportSize(); }
int viewportWidth() { return viewportSize().width(); }
int viewportHeight() { return viewportSize().height(); }
virtual void viewportChanged() { }
virtual void decideRenderPassAllocationsForFrame(const RenderPassList&) { }
virtual bool haveCachedResourcesForRenderPassId(RenderPass::Id) const;
virtual void drawFrame(const RenderPassList&, const RenderPassIdHashMap&) = 0;
// waits for rendering to finish
virtual void finish() = 0;
virtual void doNoOp() { }
// puts backbuffer onscreen
virtual bool swapBuffers() = 0;
virtual void getFramebufferPixels(void *pixels, const IntRect&) = 0;
virtual bool isContextLost();
virtual void setVisible(bool) = 0;
protected:
explicit Renderer(RendererClient* client)
: m_client(client)
{
}
RendererClient* m_client;
DISALLOW_COPY_AND_ASSIGN(Renderer);
};
}
#endif // CCRenderer_h
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