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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 GPU_COMMAND_BUFFER_CLIENT_WEBGPU_IMPLEMENTATION_H_
#define GPU_COMMAND_BUFFER_CLIENT_WEBGPU_IMPLEMENTATION_H_
#include <dawn/webgpu.h>
#include <dawn/wire/WireClient.h>
#include <memory>
#include <utility>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "gpu/command_buffer/client/dawn_client_memory_transfer_service.h"
#include "gpu/command_buffer/client/dawn_client_serializer.h"
#include "gpu/command_buffer/client/gpu_control_client.h"
#include "gpu/command_buffer/client/implementation_base.h"
#include "gpu/command_buffer/client/logging.h"
#include "gpu/command_buffer/client/transfer_buffer.h"
#include "gpu/command_buffer/client/webgpu_cmd_helper.h"
#include "gpu/command_buffer/client/webgpu_export.h"
#include "gpu/command_buffer/client/webgpu_interface.h"
#include "ui/gl/buildflags.h"
namespace gpu {
namespace webgpu {
#if BUILDFLAG(USE_DAWN)
class DawnWireServices : public APIChannel {
private:
friend class base::RefCounted<DawnWireServices>;
~DawnWireServices() override;
public:
DawnWireServices(WebGPUImplementation* webgpu_implementation,
WebGPUCmdHelper* helper,
MappedMemoryManager* mapped_memory,
std::unique_ptr<TransferBuffer> transfer_buffer);
WGPUInstance GetWGPUInstance() const override;
dawn::wire::WireClient* wire_client();
DawnClientSerializer* serializer();
DawnClientMemoryTransferService* memory_transfer_service();
void Disconnect() override;
bool IsDisconnected() const;
void FreeMappedResources(WebGPUCmdHelper* helper);
private:
bool disconnected_ = false;
DawnClientMemoryTransferService memory_transfer_service_;
DawnClientSerializer serializer_;
dawn::wire::WireClient wire_client_;
WGPUInstance wgpu_instance_;
};
#endif
class WEBGPU_EXPORT WebGPUImplementation final : public WebGPUInterface,
public ImplementationBase {
public:
explicit WebGPUImplementation(WebGPUCmdHelper* helper,
TransferBufferInterface* transfer_buffer,
GpuControl* gpu_control);
WebGPUImplementation(const WebGPUImplementation&) = delete;
WebGPUImplementation& operator=(const WebGPUImplementation&) = delete;
~WebGPUImplementation() override;
gpu::ContextResult Initialize(const SharedMemoryLimits& limits);
// Include the auto-generated part of this class. We split this because
// it means we can easily edit the non-auto generated parts right here in
// this file instead of having to edit some template or the code generator.
#include "gpu/command_buffer/client/webgpu_implementation_autogen.h"
void AssociateMailbox(GLuint device_id,
GLuint device_generation,
GLuint id,
GLuint generation,
uint64_t usage,
uint64_t internal_usage,
const WGPUTextureFormat* view_formats,
GLuint view_format_count,
MailboxFlags flags,
const Mailbox& mailbox) override;
void AssociateMailboxForBuffer(GLuint device_id,
GLuint device_generation,
GLuint id,
GLuint generation,
uint64_t usage,
const Mailbox& mailbox) override;
// ContextSupport implementation.
void SetAggressivelyFreeResources(bool aggressively_free_resources) override;
uint64_t ShareGroupTracingGUID() const override;
void SetErrorMessageCallback(
base::RepeatingCallback<void(const char*, int32_t)> callback) override;
bool ThreadSafeShallowLockDiscardableTexture(uint32_t texture_id) override;
void CompleteLockDiscardableTexureOnContextThread(
uint32_t texture_id) override;
bool ThreadsafeDiscardableTextureIsDeletedForTracing(
uint32_t texture_id) override;
void* MapTransferCacheEntry(uint32_t serialized_size) override;
void UnmapAndCreateTransferCacheEntry(uint32_t type, uint32_t id) override;
bool ThreadsafeLockTransferCacheEntry(uint32_t type, uint32_t id) override;
void UnlockTransferCacheEntries(
const std::vector<std::pair<uint32_t, uint32_t>>& entries) override;
void DeleteTransferCacheEntry(uint32_t type, uint32_t id) override;
unsigned int GetTransferBufferFreeSize() const override;
bool IsJpegDecodeAccelerationSupported() const override;
bool IsWebPDecodeAccelerationSupported() const override;
bool CanDecodeWithHardwareAcceleration(
const cc::ImageHeaderMetadata* image_metadata) const override;
// InterfaceBase implementation.
void GenSyncTokenCHROMIUM(GLbyte* sync_token) override;
void GenUnverifiedSyncTokenCHROMIUM(GLbyte* sync_token) override;
void VerifySyncTokensCHROMIUM(GLbyte** sync_tokens, GLsizei count) override;
void WaitSyncTokenCHROMIUM(const GLbyte* sync_token) override;
void ShallowFlushCHROMIUM() override;
bool HasGrContextSupport() const override;
// ImplementationBase implementation.
void IssueShallowFlush() override;
void SetGLError(GLenum error,
const char* function_name,
const char* msg) override;
// GpuControlClient implementation.
void OnGpuControlLostContext() final;
void OnGpuControlLostContextMaybeReentrant() final;
void OnGpuControlErrorMessage(const char* message, int32_t id) final;
void OnGpuControlReturnData(base::span<const uint8_t> data) final;
// WebGPUInterface implementation
void FlushCommands() override;
bool EnsureAwaitingFlush() override;
void FlushAwaitingCommands() override;
scoped_refptr<APIChannel> GetAPIChannel() const override;
ReservedBuffer ReserveBuffer(
WGPUDevice device,
const WGPUBufferDescriptor* optionalDesc) override;
ReservedTexture ReserveTexture(
WGPUDevice device,
const WGPUTextureDescriptor* optionalDesc = nullptr) override;
WGPUDevice DeprecatedEnsureDefaultDeviceSync() override;
private:
const char* GetLogPrefix() const { return "webgpu"; }
void CheckGLError() {}
void LoseContext();
raw_ptr<WebGPUCmdHelper> helper_;
#if BUILDFLAG(USE_DAWN)
scoped_refptr<DawnWireServices> dawn_wire_;
#endif
LogSettings log_settings_;
std::atomic_bool lost_{false};
};
} // namespace webgpu
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_WEBGPU_IMPLEMENTATION_H_
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