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0eff5987f0
This chained struct can be used for internally adding usages to
Dawn textures. It will affect how the texture is allocated, but
not affect frontend validation.
One use case for this is so that Chromium can use an internal
copyTextureToTexture command to implement copies from a WebGPU
texture-backed canvas to other Web platform primitives when the
swapchain texture was not explicitly created with CopySrc usage
in Javascript.
Usage:
wgpu::DawnTextureInternalUsageDescriptor internalDesc = {};
internalDesc.internalUsage = wgpu::TextureUsage::CopySrc;
wgpu::TextureDescriptor desc = {};
// set properties of desc.
desc.nextInChain = &internalDesc;
device.createTexture(&desc);
Fixed: dawn:1027
Change-Id: Id4d08b5588d4960d150d559aa11502c69f40a674
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/58140
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
// Copyright 2019 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_EXTENSIONS_H_
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#define DAWNNATIVE_EXTENSIONS_H_
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#include <bitset>
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#include <unordered_map>
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#include <vector>
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#include "dawn_native/DawnNative.h"
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namespace dawn_native {
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enum class Extension {
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TextureCompressionBC,
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ShaderFloat16,
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PipelineStatisticsQuery,
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TimestampQuery,
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MultiPlanarFormats,
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DepthClamping,
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// Dawn-specific
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DawnInternalUsages,
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EnumCount,
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InvalidEnum = EnumCount,
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ExtensionMin = TextureCompressionBC,
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};
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// A wrapper of the bitset to store if an extension is enabled or not. This wrapper provides the
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// convenience to convert the enums of enum class Extension to the indices of a bitset.
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struct ExtensionsSet {
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std::bitset<static_cast<size_t>(Extension::EnumCount)> extensionsBitSet;
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void EnableExtension(Extension extension);
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bool IsEnabled(Extension extension) const;
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std::vector<const char*> GetEnabledExtensionNames() const;
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void InitializeDeviceProperties(WGPUDeviceProperties* properties) const;
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};
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const char* ExtensionEnumToName(Extension extension);
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class ExtensionsInfo {
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public:
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ExtensionsInfo();
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// Used to query the details of an extension. Return nullptr if extensionName is not a valid
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// name of an extension supported in Dawn
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const ExtensionInfo* GetExtensionInfo(const char* extensionName) const;
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Extension ExtensionNameToEnum(const char* extensionName) const;
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ExtensionsSet ExtensionNamesToExtensionsSet(
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const std::vector<const char*>& requiredExtensions) const;
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private:
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std::unordered_map<std::string, Extension> mExtensionNameToEnumMap;
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};
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} // namespace dawn_native
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#endif // DAWNNATIVE_EXTENSIONS_H_
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