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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_VR_GRAPHICS_DELEGATE_WIN_H_
#define CHROME_BROWSER_VR_GRAPHICS_DELEGATE_WIN_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "chrome/browser/vr/graphics_delegate.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/client_shared_image.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/ipc/client/gpu_channel_host.h"
#include "mojo/public/cpp/platform/platform_handle.h"
#include "services/viz/public/cpp/gpu/context_provider_command_buffer.h"
#include "ui/gfx/geometry/size.h"
namespace gpu {
class SharedImageInterface;
namespace gles2 {
class GLES2Interface;
}
} // namespace gpu
namespace vr {
class GraphicsDelegateWin : public GraphicsDelegate {
public:
GraphicsDelegateWin();
~GraphicsDelegateWin() override;
// GraphicsDelegate:
void Initialize(base::OnceClosure on_initialized) override;
bool PreRender() override;
void PostRender() override;
gfx::GpuMemoryBufferHandle GetTexture() override;
gpu::SyncToken GetSyncToken() override;
void ResetMemoryBuffer() override;
bool BindContext() override;
void ClearContext() override;
private:
// Helpers:
bool EnsureMemoryBuffer();
void ClearBufferToBlack() override;
scoped_refptr<gpu::GpuChannelHost> gpu_channel_host_;
scoped_refptr<viz::ContextProviderCommandBuffer> context_provider_;
raw_ptr<gpu::gles2::GLES2Interface> gl_ = nullptr;
raw_ptr<gpu::SharedImageInterface> sii_ = nullptr;
gfx::Size last_size_;
scoped_refptr<gpu::ClientSharedImage> client_shared_image_;
std::unique_ptr<gpu::SharedImageTexture> shared_image_texture_;
std::unique_ptr<gpu::SharedImageTexture::ScopedAccess>
scoped_shared_image_access_;
GLuint draw_frame_buffer_ = 0;
// Sync point after access to the buffer is done.
gpu::SyncToken access_done_sync_token_;
};
} // namespace vr
#endif // CHROME_BROWSER_VR_GRAPHICS_DELEGATE_WIN_H_
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