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// Copyright (c) 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 CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
#define CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
#include <stdint.h>
#include <memory>
#include "base/macros.h"
#include "base/memory/shared_memory.h"
#include "base/memory/weak_ptr.h"
#include "gpu/command_buffer/client/gpu_control_client.h"
#include "gpu/command_buffer/common/command_buffer_id.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "ppapi/shared_impl/ppb_graphics_3d_shared.h"
#include "ppapi/shared_impl/resource.h"
namespace gpu {
struct Capabilities;
class CommandBufferProxyImpl;
struct ContextCreationAttribs;
}
namespace content {
class PPB_Graphics3D_Impl : public ppapi::PPB_Graphics3D_Shared,
public gpu::GpuControlClient {
public:
static PP_Resource CreateRaw(PP_Instance instance,
PP_Resource share_context,
const gpu::ContextCreationAttribs& attrib_helper,
gpu::Capabilities* capabilities,
base::SharedMemoryHandle* shared_state_handle,
gpu::CommandBufferId* command_buffer_id);
// PPB_Graphics3D_API trusted implementation.
PP_Bool SetGetBuffer(int32_t transfer_buffer_id) override;
scoped_refptr<gpu::Buffer> CreateTransferBuffer(uint32_t size,
int32_t* id) override;
PP_Bool DestroyTransferBuffer(int32_t id) override;
PP_Bool Flush(int32_t put_offset) override;
gpu::CommandBuffer::State WaitForTokenInRange(int32_t start,
int32_t end) override;
gpu::CommandBuffer::State WaitForGetOffsetInRange(
uint32_t set_get_buffer_count,
int32_t start,
int32_t end) override;
void EnsureWorkVisible() override;
void TakeFrontBuffer() override;
void ReturnFrontBuffer(const gpu::Mailbox& mailbox,
const gpu::SyncToken& sync_token,
bool is_lost);
// Binds/unbinds the graphics of this context with the associated instance.
// Returns true if binding/unbinding is successful.
bool BindToInstance(bool bind);
// Returns true if the backing texture is always opaque.
bool IsOpaque();
// Notifications about the view's progress painting. See PluginInstance.
// These messages are used to send Flush callbacks to the plugin.
void ViewInitiatedPaint();
gpu::CommandBufferProxyImpl* GetCommandBufferProxy();
protected:
~PPB_Graphics3D_Impl() override;
// ppapi::PPB_Graphics3D_Shared overrides.
gpu::CommandBuffer* GetCommandBuffer() override;
gpu::GpuControl* GetGpuControl() override;
int32_t DoSwapBuffers(const gpu::SyncToken& sync_token,
const gfx::Size& size) override;
private:
explicit PPB_Graphics3D_Impl(PP_Instance instance);
bool InitRaw(PPB_Graphics3D_API* share_context,
const gpu::ContextCreationAttribs& requested_attribs,
gpu::Capabilities* capabilities,
base::SharedMemoryHandle* shared_state_handle,
gpu::CommandBufferId* command_buffer_id);
// GpuControlClient implementation.
void OnGpuControlLostContext() final;
void OnGpuControlLostContextMaybeReentrant() final;
void OnGpuControlErrorMessage(const char* msg, int id) final;
// Other notifications from the GPU process.
void OnSwapBuffers();
// Notifications sent to plugin.
void SendContextLost();
// Reuses a mailbox if one is available, otherwise makes a new one.
gpu::Mailbox GenerateMailbox();
// A front buffer that was recently taken from the command buffer. This should
// be immediately consumed by DoSwapBuffers().
gpu::Mailbox taken_front_buffer_;
// Mailboxes that are no longer in use.
std::vector<gpu::Mailbox> mailboxes_to_reuse_;
// True if context is bound to instance.
bool bound_to_instance_;
// True when waiting for compositor to commit our backing texture.
bool commit_pending_;
#if DCHECK_IS_ON()
bool lost_context_ = false;
#endif
bool has_alpha_;
const bool use_image_chromium_;
std::unique_ptr<gpu::CommandBufferProxyImpl> command_buffer_;
base::WeakPtrFactory<PPB_Graphics3D_Impl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Impl);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PPB_GRAPHICS_3D_IMPL_H_
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