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79c9d125f2
This CL propagates errors from reentrant WriteBuffer calls and makes procy methods on BufferBase to show that it is safe to call GetMappedRange and Unmap without handling errors. Bug: dawn:723 Change-Id: I4ea43adc4844505314bf84e2357b2d928f1d1f8c Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46003 Auto-Submit: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Stephen White <senorblanco@chromium.org>
128 lines
4.4 KiB
C++
128 lines
4.4 KiB
C++
// Copyright 2017 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef DAWNNATIVE_BUFFER_H_
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#define DAWNNATIVE_BUFFER_H_
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#include "dawn_native/Error.h"
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#include "dawn_native/Forward.h"
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#include "dawn_native/IntegerTypes.h"
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#include "dawn_native/ObjectBase.h"
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#include "dawn_native/dawn_platform.h"
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#include <memory>
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namespace dawn_native {
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struct CopyTextureToBufferCmd;
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enum class MapType : uint32_t;
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MaybeError ValidateBufferDescriptor(DeviceBase* device, const BufferDescriptor* descriptor);
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static constexpr wgpu::BufferUsage kReadOnlyBufferUsages =
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wgpu::BufferUsage::MapRead | wgpu::BufferUsage::CopySrc | wgpu::BufferUsage::Index |
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wgpu::BufferUsage::Vertex | wgpu::BufferUsage::Uniform | kReadOnlyStorageBuffer;
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class BufferBase : public ObjectBase {
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enum class BufferState {
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Unmapped,
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Mapped,
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MappedAtCreation,
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Destroyed,
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};
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public:
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BufferBase(DeviceBase* device, const BufferDescriptor* descriptor);
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static BufferBase* MakeError(DeviceBase* device, const BufferDescriptor* descriptor);
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uint64_t GetSize() const;
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wgpu::BufferUsage GetUsage() const;
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MaybeError MapAtCreation();
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void OnMapRequestCompleted(MapRequestID mapID, WGPUBufferMapAsyncStatus status);
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MaybeError ValidateCanUseOnQueueNow() const;
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bool IsFullBufferRange(uint64_t offset, uint64_t size) const;
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bool IsDataInitialized() const;
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void SetIsDataInitialized();
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void* GetMappedRange(size_t offset, size_t size, bool writable = true);
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void Unmap();
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// Dawn API
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void APIMapAsync(wgpu::MapMode mode,
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size_t offset,
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size_t size,
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WGPUBufferMapCallback callback,
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void* userdata);
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void* APIGetMappedRange(size_t offset, size_t size);
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const void* APIGetConstMappedRange(size_t offset, size_t size);
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void APIUnmap();
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void APIDestroy();
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protected:
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BufferBase(DeviceBase* device,
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const BufferDescriptor* descriptor,
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ObjectBase::ErrorTag tag);
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~BufferBase() override;
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void DestroyInternal();
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MaybeError MapAtCreationInternal();
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private:
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virtual MaybeError MapAtCreationImpl() = 0;
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virtual MaybeError MapAsyncImpl(wgpu::MapMode mode, size_t offset, size_t size) = 0;
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virtual void UnmapImpl() = 0;
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virtual void DestroyImpl() = 0;
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virtual void* GetMappedPointerImpl() = 0;
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virtual bool IsCPUWritableAtCreation() const = 0;
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MaybeError CopyFromStagingBuffer();
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void CallMapCallback(MapRequestID mapID, WGPUBufferMapAsyncStatus status);
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MaybeError ValidateMap(wgpu::BufferUsage requiredUsage,
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WGPUBufferMapAsyncStatus* status) const;
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MaybeError ValidateMapAsync(wgpu::MapMode mode,
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size_t offset,
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size_t size,
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WGPUBufferMapAsyncStatus* status) const;
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MaybeError ValidateUnmap() const;
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MaybeError ValidateDestroy() const;
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bool CanGetMappedRange(bool writable, size_t offset, size_t size) const;
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void UnmapInternal(WGPUBufferMapAsyncStatus callbackStatus);
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uint64_t mSize = 0;
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wgpu::BufferUsage mUsage = wgpu::BufferUsage::None;
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BufferState mState;
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bool mIsDataInitialized = false;
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std::unique_ptr<StagingBufferBase> mStagingBuffer;
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WGPUBufferMapCallback mMapCallback = nullptr;
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void* mMapUserdata = 0;
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MapRequestID mLastMapID = MapRequestID(0);
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wgpu::MapMode mMapMode = wgpu::MapMode::None;
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size_t mMapOffset = 0;
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size_t mMapSize = 0;
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};
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} // namespace dawn_native
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#endif // DAWNNATIVE_BUFFER_H_
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