| // Copyright 2018 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef SRC_DAWN_NATIVE_DAWN_PLATFORM_H_ |
| #define SRC_DAWN_NATIVE_DAWN_PLATFORM_H_ |
| |
| // Use webgpu_cpp to have the enum and bitfield definitions |
| #include "dawn/webgpu_cpp.h" |
| |
| #include "dawn/native/dawn_platform_autogen.h" |
| |
| namespace dawn::native { |
| |
| // kEnumCount is a constant specifying the number of enums in a WebGPU enum type, |
| // if the enums are contiguous, making it suitable for iteration. |
| // It is defined in dawn_platform_autogen.h |
| template <typename T> |
| constexpr uint32_t kEnumCount = EnumCount<T>::value; |
| |
| // Extra buffer usages |
| // Add an extra buffer usage and an extra binding type for binding the buffers with QueryResolve |
| // usage as storage buffer in the internal pipeline. |
| static constexpr wgpu::BufferUsage kInternalStorageBuffer = |
| static_cast<wgpu::BufferUsage>(1u << 31); |
| |
| // Add an extra buffer usage (readonly storage buffer usage) for render pass resource tracking |
| static constexpr wgpu::BufferUsage kReadOnlyStorageBuffer = |
| static_cast<wgpu::BufferUsage>(1u << 30); |
| |
| static constexpr wgpu::BufferUsage kAllInternalBufferUsages = |
| kInternalStorageBuffer | kReadOnlyStorageBuffer; |
| |
| // Extra texture usages |
| // Usage to denote an extra tag value used in system specific ways. |
| // - Used to store that attachments are used more than once in PassResourceUsageTracker. |
| // - Used to store mixed read-only vs. not depth-stencil layouts in Vulkan. |
| static constexpr wgpu::TextureUsage kReservedTextureUsage = |
| static_cast<wgpu::TextureUsage>(1u << 31); |
| |
| // Extrea texture usages for textures that are used with the presentation engine. |
| // Acquire is that Dawn is acquiring the texture from the presentation engine while Release is Dawn |
| // releasing is to the presentation engine. |
| static constexpr wgpu::TextureUsage kPresentAcquireTextureUsage = |
| static_cast<wgpu::TextureUsage>(1u << 30); |
| static constexpr wgpu::TextureUsage kPresentReleaseTextureUsage = |
| static_cast<wgpu::TextureUsage>(1u << 29); |
| |
| // Add an extra texture usage (readonly render attachment usage) for render pass resource |
| // tracking |
| static constexpr wgpu::TextureUsage kReadOnlyRenderAttachment = |
| static_cast<wgpu::TextureUsage>(1u << 28); |
| |
| // Add an extra texture usage (readonly storage texture usage) for resource tracking |
| static constexpr wgpu::TextureUsage kReadOnlyStorageTexture = |
| static_cast<wgpu::TextureUsage>(1u << 27); |
| |
| // Add an extra texture usage (writeonly storage texture usage) for resource tracking |
| static constexpr wgpu::TextureUsage kWriteOnlyStorageTexture = |
| static_cast<wgpu::TextureUsage>(1u << 26); |
| |
| // Add an extra texture usage (load resolve texture to MSAA) for render pass resource tracking |
| static constexpr wgpu::TextureUsage kResolveAttachmentLoadingUsage = |
| static_cast<wgpu::TextureUsage>(1u << 25); |
| |
| // Extra BufferBindingType for internal storage buffer binding. |
| static constexpr wgpu::BufferBindingType kInternalStorageBufferBinding = |
| static_cast<wgpu::BufferBindingType>(~0u); |
| |
| // Extra TextureSampleType for sampling from a resolve attachment. |
| static constexpr wgpu::TextureSampleType kInternalResolveAttachmentSampleType = |
| static_cast<wgpu::TextureSampleType>(~0u); |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_DAWN_PLATFORM_H_ |