| // Copyright 2020 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 SRC_DAWN_NATIVE_SUBRESOURCE_H_ |
| #define SRC_DAWN_NATIVE_SUBRESOURCE_H_ |
| |
| #include "dawn/native/EnumClassBitmasks.h" |
| #include "dawn/native/dawn_platform.h" |
| |
| namespace dawn::native { |
| |
| // Note: Subresource indices are computed by iterating the aspects in increasing order. |
| // D3D12 uses these directly, so the order must match D3D12's indices. |
| // - Depth/Stencil textures have Depth as Plane 0, and Stencil as Plane 1. |
| enum class Aspect : uint8_t { |
| None = 0x0, |
| Color = 0x1, |
| Depth = 0x2, |
| Stencil = 0x4, |
| |
| // Aspects used to select individual planes in a multi-planar format. |
| Plane0 = 0x8, |
| Plane1 = 0x10, |
| |
| // An aspect for that represents the combination of both the depth and stencil aspects. It |
| // can be ignored outside of the Vulkan backend. |
| CombinedDepthStencil = 0x20, |
| }; |
| |
| template <> |
| struct EnumBitmaskSize<Aspect> { |
| static constexpr unsigned value = 6; |
| }; |
| |
| // Convert the TextureAspect to an Aspect mask for the format. ASSERTs if the aspect |
| // does not exist in the format. |
| // Also ASSERTs if "All" is selected and results in more than one aspect. |
| Aspect ConvertSingleAspect(const Format& format, wgpu::TextureAspect aspect); |
| |
| // Convert the TextureAspect to an Aspect mask for the format. ASSERTs if the aspect |
| // does not exist in the format. |
| Aspect ConvertAspect(const Format& format, wgpu::TextureAspect aspect); |
| |
| // Returns the Aspects of the Format that are selected by the wgpu::TextureAspect. |
| // Note that this can return Aspect::None if the Format doesn't have any of the |
| // selected aspects. |
| Aspect SelectFormatAspects(const Format& format, wgpu::TextureAspect aspect); |
| |
| // Convert TextureAspect to the aspect which corresponds to the view format. This |
| // special cases per plane view formats before calling ConvertAspect. |
| Aspect ConvertViewAspect(const Format& format, wgpu::TextureAspect aspect); |
| |
| // Helper struct to make it clear that what the parameters of a range mean. |
| template <typename T> |
| struct FirstAndCountRange { |
| T first; |
| T count; |
| }; |
| |
| struct SubresourceRange { |
| SubresourceRange(Aspect aspects, |
| FirstAndCountRange<uint32_t> arrayLayerParam, |
| FirstAndCountRange<uint32_t> mipLevelParams); |
| SubresourceRange(); |
| |
| Aspect aspects; |
| uint32_t baseArrayLayer; |
| uint32_t layerCount; |
| uint32_t baseMipLevel; |
| uint32_t levelCount; |
| |
| static SubresourceRange SingleMipAndLayer(uint32_t baseMipLevel, |
| uint32_t baseArrayLayer, |
| Aspect aspects); |
| static SubresourceRange MakeSingle(Aspect aspect, |
| uint32_t baseArrayLayer, |
| uint32_t baseMipLevel); |
| |
| static SubresourceRange MakeFull(Aspect aspects, uint32_t layerCount, uint32_t levelCount); |
| }; |
| |
| // Helper function to use aspects as linear indices in arrays. |
| uint8_t GetAspectIndex(Aspect aspect); |
| uint8_t GetAspectCount(Aspect aspects); |
| |
| // The maximum number of planes per format Dawn knows about. Asserts in BuildFormatTable that |
| // the per plane index does not exceed the known maximum plane count. |
| static constexpr uint32_t kMaxPlanesPerFormat = 3; |
| |
| } // namespace dawn::native |
| |
| namespace dawn { |
| |
| template <> |
| struct IsDawnBitmask<dawn::native::Aspect> { |
| static constexpr bool enable = true; |
| }; |
| |
| } // namespace dawn |
| |
| #endif // SRC_DAWN_NATIVE_SUBRESOURCE_H_ |