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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 "CCRenderPass.h"
#include "FloatQuad.h"
#include "IntRect.h"
#include <wtf/Noncopyable.h>
#include <wtf/PassRefPtr.h>
namespace cc {
class CCScopedTexture;
class CCRendererClient {
public:
virtual const IntSize& deviceViewportSize() const = 0;
virtual const CCLayerTreeSettings& settings() const = 0;
virtual void didLoseContext() = 0;
virtual void onSwapBuffersComplete() = 0;
virtual void releaseContentsTextures() = 0;
virtual void setFullRootLayerDamage() = 0;
virtual void setMemoryAllocationLimitBytes(size_t) = 0;
protected:
virtual ~CCRendererClient() { }
};
class CCRenderer {
WTF_MAKE_NONCOPYABLE(CCRenderer);
public:
// This enum defines the various resource pools for the CCResourceProvider
// 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 ~CCRenderer() { }
virtual const RendererCapabilities& capabilities() const = 0;
const CCLayerTreeSettings& settings() const { return m_client->settings(); }
const IntSize& viewportSize() { return m_client->deviceViewportSize(); }
int viewportWidth() { return viewportSize().width(); }
int viewportHeight() { return viewportSize().height(); }
virtual void viewportChanged() { }
virtual void decideRenderPassAllocationsForFrame(const CCRenderPassList&) { }
virtual bool haveCachedResourcesForRenderPassId(CCRenderPass::Id) const { return false; }
virtual void drawFrame(const CCRenderPassList&, const CCRenderPassIdHashMap&) = 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() { return false; }
virtual void setVisible(bool) = 0;
protected:
explicit CCRenderer(CCRendererClient* client)
: m_client(client)
{
}
CCRendererClient* m_client;
};
}
#endif // CCRenderer_h
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