| // Copyright 2017 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. |
| |
| #include "dawn/native/opengl/PipelineLayoutGL.h" |
| |
| #include "dawn/common/BitSetIterator.h" |
| #include "dawn/common/MatchVariant.h" |
| #include "dawn/native/BindGroupLayoutInternal.h" |
| #include "dawn/native/opengl/DeviceGL.h" |
| |
| namespace dawn::native::opengl { |
| |
| PipelineLayout::PipelineLayout(Device* device, |
| const UnpackedPtr<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 BindGroupLayoutInternalBase* bgl = GetBindGroupLayout(group); |
| mIndexInfo[group].resize(bgl->GetBindingCount()); |
| |
| for (BindingIndex bindingIndex{0}; bindingIndex < bgl->GetBindingCount(); ++bindingIndex) { |
| const BindingInfo& bindingInfo = bgl->GetBindingInfo(bindingIndex); |
| MatchVariant( |
| bindingInfo.bindingLayout, |
| [&](const BufferBindingInfo& layout) { |
| switch (layout.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: |
| DAWN_UNREACHABLE(); |
| } |
| }, |
| [&](const StaticSamplerHolderBindingLayout&) { |
| mIndexInfo[group][bindingIndex] = samplerIndex; |
| samplerIndex++; |
| }, |
| [&](const SamplerBindingLayout&) { |
| mIndexInfo[group][bindingIndex] = samplerIndex; |
| samplerIndex++; |
| }, |
| [&](const TextureBindingInfo&) { |
| mIndexInfo[group][bindingIndex] = sampledTextureIndex; |
| sampledTextureIndex++; |
| }, |
| [&](const StorageTextureBindingInfo&) { |
| mIndexInfo[group][bindingIndex] = storageTextureIndex; |
| storageTextureIndex++; |
| }); |
| } |
| } |
| |
| mNumSamplers = samplerIndex; |
| mNumSampledTextures = sampledTextureIndex; |
| |
| // Set internal uniform binding as the next unused uboIndex. |
| mInternalUniformBinding = uboIndex; |
| } |
| |
| 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; |
| } |
| |
| GLuint PipelineLayout::GetInternalUniformBinding() const { |
| return mInternalUniformBinding; |
| } |
| |
| } // namespace dawn::native::opengl |