| // Copyright 2020 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_BINDINGINFO_H_ |
| #define SRC_DAWN_NATIVE_BINDINGINFO_H_ |
| |
| #include <cstdint> |
| #include <vector> |
| |
| #include "dawn/common/Constants.h" |
| #include "dawn/common/ityp_array.h" |
| #include "dawn/native/Error.h" |
| #include "dawn/native/Format.h" |
| #include "dawn/native/IntegerTypes.h" |
| #include "dawn/native/PerStage.h" |
| |
| #include "dawn/native/dawn_platform.h" |
| |
| namespace dawn::native { |
| |
| // Not a real WebGPU limit, but used to optimize parts of Dawn which expect valid usage of the |
| // API. There should never be more bindings than the max per stage, for each stage. |
| static constexpr uint32_t kMaxBindingsPerPipelineLayout = |
| 3 * (kMaxSampledTexturesPerShaderStage + kMaxSamplersPerShaderStage + |
| kMaxStorageBuffersPerShaderStage + kMaxStorageTexturesPerShaderStage + |
| kMaxUniformBuffersPerShaderStage); |
| |
| static constexpr BindingIndex kMaxBindingsPerPipelineLayoutTyped = |
| BindingIndex(kMaxBindingsPerPipelineLayout); |
| |
| // TODO(enga): Figure out a good number for this. |
| static constexpr uint32_t kMaxOptimalBindingsPerGroup = 32; |
| |
| enum class BindingInfoType { Buffer, Sampler, Texture, StorageTexture, ExternalTexture }; |
| |
| struct BindingInfo { |
| BindingNumber binding; |
| wgpu::ShaderStage visibility; |
| |
| BindingInfoType bindingType; |
| |
| // TODO(dawn:527): These four values could be made into a union. |
| BufferBindingLayout buffer; |
| SamplerBindingLayout sampler; |
| TextureBindingLayout texture; |
| StorageTextureBindingLayout storageTexture; |
| }; |
| |
| struct BindingSlot { |
| BindGroupIndex group; |
| BindingNumber binding; |
| }; |
| |
| struct PerStageBindingCounts { |
| uint32_t sampledTextureCount; |
| uint32_t samplerCount; |
| uint32_t storageBufferCount; |
| uint32_t storageTextureCount; |
| uint32_t uniformBufferCount; |
| uint32_t externalTextureCount; |
| }; |
| |
| struct BindingCounts { |
| uint32_t totalCount; |
| uint32_t bufferCount; |
| uint32_t unverifiedBufferCount; // Buffers with minimum buffer size unspecified |
| uint32_t dynamicUniformBufferCount; |
| uint32_t dynamicStorageBufferCount; |
| PerStage<PerStageBindingCounts> perStage; |
| }; |
| |
| struct CombinedLimits; |
| |
| void IncrementBindingCounts(BindingCounts* bindingCounts, |
| const UnpackedPtr<BindGroupLayoutEntry>& entry); |
| void AccumulateBindingCounts(BindingCounts* bindingCounts, const BindingCounts& rhs); |
| MaybeError ValidateBindingCounts(const CombinedLimits& limits, const BindingCounts& bindingCounts); |
| |
| // For buffer size validation |
| using RequiredBufferSizes = PerBindGroup<std::vector<uint64_t>>; |
| |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_BINDINGINFO_H_ |