| // Copyright 2017 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. |
| |
| #include "dawn_native/opengl/PipelineLayoutGL.h" |
| |
| #include "common/BitSetIterator.h" |
| #include "dawn_native/BindGroupLayout.h" |
| #include "dawn_native/opengl/DeviceGL.h" |
| |
| namespace dawn::native::opengl { |
| |
| PipelineLayout::PipelineLayout(Device* device, const PipelineLayoutDescriptor* descriptor) |
| : PipelineLayoutBase(device, descriptor) { |
| GLuint uboIndex = 0; |
| GLuint samplerIndex = 0; |
| GLuint sampledTextureIndex = 0; |
| GLuint ssboIndex = 0; |
| GLuint storageTextureIndex = 0; |
| |
| for (BindGroupIndex group : IterateBitSet(GetBindGroupLayoutsMask())) { |
| const BindGroupLayoutBase* bgl = GetBindGroupLayout(group); |
| mIndexInfo[group].resize(bgl->GetBindingCount()); |
| |
| for (BindingIndex bindingIndex{0}; bindingIndex < bgl->GetBindingCount(); |
| ++bindingIndex) { |
| const BindingInfo& bindingInfo = bgl->GetBindingInfo(bindingIndex); |
| switch (bindingInfo.bindingType) { |
| case BindingInfoType::Buffer: |
| switch (bindingInfo.buffer.type) { |
| case wgpu::BufferBindingType::Uniform: |
| mIndexInfo[group][bindingIndex] = uboIndex; |
| uboIndex++; |
| break; |
| case wgpu::BufferBindingType::Storage: |
| case kInternalStorageBufferBinding: |
| case wgpu::BufferBindingType::ReadOnlyStorage: |
| mIndexInfo[group][bindingIndex] = ssboIndex; |
| ssboIndex++; |
| break; |
| case wgpu::BufferBindingType::Undefined: |
| UNREACHABLE(); |
| } |
| break; |
| |
| case BindingInfoType::Sampler: |
| mIndexInfo[group][bindingIndex] = samplerIndex; |
| samplerIndex++; |
| break; |
| |
| case BindingInfoType::Texture: |
| case BindingInfoType::ExternalTexture: |
| mIndexInfo[group][bindingIndex] = sampledTextureIndex; |
| sampledTextureIndex++; |
| break; |
| |
| case BindingInfoType::StorageTexture: |
| mIndexInfo[group][bindingIndex] = storageTextureIndex; |
| storageTextureIndex++; |
| break; |
| } |
| } |
| } |
| |
| mNumSamplers = samplerIndex; |
| mNumSampledTextures = sampledTextureIndex; |
| } |
| |
| const PipelineLayout::BindingIndexInfo& PipelineLayout::GetBindingIndexInfo() const { |
| return mIndexInfo; |
| } |
| |
| GLuint PipelineLayout::GetTextureUnitsUsed() const { |
| return 0; |
| } |
| |
| size_t PipelineLayout::GetNumSamplers() const { |
| return mNumSamplers; |
| } |
| |
| size_t PipelineLayout::GetNumSampledTextures() const { |
| return mNumSampledTextures; |
| } |
| |
| } // namespace dawn::native::opengl |