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// Copyright 2017 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef DAWNNATIVE_VULKAN_BUFFERVK_H_
#define DAWNNATIVE_VULKAN_BUFFERVK_H_
#include "dawn_native/Buffer.h"
#include "common/SerialQueue.h"
#include "common/vulkan_platform.h"
#include "dawn_native/ResourceMemoryAllocation.h"
namespace dawn::native::vulkan {
struct CommandRecordingContext;
class Device;
class Buffer final : public BufferBase {
public:
static ResultOrError<Ref<Buffer>> Create(Device* device,
const BufferDescriptor* descriptor);
VkBuffer GetHandle() const;
// Transitions the buffer to be used as `usage`, recording any necessary barrier in
// `commands`.
// TODO(crbug.com/dawn/851): coalesce barriers and do them early when possible.
void TransitionUsageNow(CommandRecordingContext* recordingContext, wgpu::BufferUsage usage);
bool TransitionUsageAndGetResourceBarrier(wgpu::BufferUsage usage,
VkBufferMemoryBarrier* barrier,
VkPipelineStageFlags* srcStages,
VkPipelineStageFlags* dstStages);
// All the Ensure methods return true if the buffer was initialized to zero.
bool EnsureDataInitialized(CommandRecordingContext* recordingContext);
bool EnsureDataInitializedAsDestination(CommandRecordingContext* recordingContext,
uint64_t offset,
uint64_t size);
bool EnsureDataInitializedAsDestination(CommandRecordingContext* recordingContext,
const CopyTextureToBufferCmd* copy);
// Dawn API
void SetLabelImpl() override;
private:
~Buffer() override;
using BufferBase::BufferBase;
MaybeError Initialize(bool mappedAtCreation);
void InitializeToZero(CommandRecordingContext* recordingContext);
void ClearBuffer(CommandRecordingContext* recordingContext,
uint32_t clearValue,
uint64_t offset = 0,
uint64_t size = 0);
MaybeError MapAsyncImpl(wgpu::MapMode mode, size_t offset, size_t size) override;
void UnmapImpl() override;
void DestroyImpl() override;
bool IsCPUWritableAtCreation() const override;
MaybeError MapAtCreationImpl() override;
void* GetMappedPointerImpl() override;
VkBuffer mHandle = VK_NULL_HANDLE;
ResourceMemoryAllocation mMemoryAllocation;
wgpu::BufferUsage mLastUsage = wgpu::BufferUsage::None;
};
} // namespace dawn::native::vulkan
#endif // DAWNNATIVE_VULKAN_BUFFERVK_H_