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Viewing changes to shared/port/content/common/gpu_service_shim_oxide.h

  • Committer: Chris Coulson
  • Date: 2015-03-25 01:40:08 UTC
  • mfrom: (1007.2.15 support-eglimage)
  • Revision ID: chris.coulson@canonical.com-20150325014008-rklnpn9pc0e0rxu8
https://launchpad.net/bugs/1435831
https://launchpad.net/bugs/1435835
Add an EGLImage compositing path for when share groups aren't reliable, and improve synchronization between the WebView compositor and UI compositor

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shared/port/content/common/gpu_service_shim_oxide.h
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// vim:expandtab:shiftwidth=2:tabstop=2:
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// Copyright (C) 2014 Canonical Ltd.
 
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// Copyright (C) 2014-2015 Canonical Ltd.
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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#ifndef _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_THREAD_SHIM_H_
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#define _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_THREAD_SHIM_H_
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#include <cstdint>
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#include "base/macros.h"
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#include "base/memory/scoped_ptr.h"
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#include "base/memory/weak_ptr.h"
 
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#ifndef _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_SERVICE_SHIM_H_
 
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#define _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_SERVICE_SHIM_H_
 
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#include <stdint.h>
 
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#include "content/common/content_export.h"
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typedef unsigned int GLuint;
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namespace gfx {
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class GLShareGroup;
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}
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namespace gpu {
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class Mailbox;
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namespace gles2 {
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class TextureManager;
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class TextureRef;
 
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class GLES2Decoder;
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}
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}
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namespace content {
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class ContextProviderCommandBuffer;
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class GpuCommandBufferStub;
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namespace oxide_gpu_shim {
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// Wrapper class for TextureRef. This is not thread-safe, and should only
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// be used on the GPU thread
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class CONTENT_EXPORT Texture {
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 public:
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  Texture(content::GpuCommandBufferStub* command_buffer,
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          gpu::gles2::TextureRef* ref);
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  ~Texture();
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  // Return the real texture ID
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  GLuint GetServiceID() const;
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  // Returns the TextureManager associated with the share group that the
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  // TextureRef belongs to
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  gpu::gles2::TextureManager* GetTextureManager() const;
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  // Destroy the underlying TextureRef. This can fail, eg, if the context
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  // is lost. On success, |this| can be deleted. On failure, |this| must not
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  // be deleted until its TextureManager is deing destroyed
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  // Returns: true on success, false on failure
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  bool Destroy();  
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 private:
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  // We use a WeakPtr, but it's a bug if this class outlives command_buffer_
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  base::WeakPtr<content::GpuCommandBufferStub> command_buffer_;
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  scoped_refptr<gpu::gles2::TextureRef> ref_;
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  DISALLOW_COPY_AND_ASSIGN(Texture);
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};
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// Create and return a Texture instance for the corresponding client process,
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// command buffer and mailbox. The caller takes ownership of Texture
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CONTENT_EXPORT Texture* ConsumeTextureFromMailbox(
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    int32_t client_id,
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    int32_t route_id,
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    const gpu::Mailbox& mailbox);
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CONTENT_EXPORT int32_t GetContextProviderRouteID(
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    content::ContextProviderCommandBuffer* provider);
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CONTENT_EXPORT gfx::GLShareGroup* GetGLShareGroup();
 
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CONTENT_EXPORT gpu::gles2::GLES2Decoder* GetGLES2Decoder(int32_t client_id,
 
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                                                         int32_t route_id);
 
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gfx::GLShareGroup* GetGLShareGroup();
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CONTENT_EXPORT void SetGLShareGroup(gfx::GLShareGroup* share_group);
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} // oxide_gpu_shim
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} // content
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#endif // _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_THREAD_SHIM_H_
 
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#endif // _OXIDE_SHARED_PORT_CONTENT_COMMON_GPU_SERVICE_SHIM_H_