| /* Copyright (c) 2017 Hans-Kristian Arntzen |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| // Based on the following files from the Granite rendering engine: |
| // - vulkan/shader.cpp |
| |
| #include "src/ui/lib/escher/third_party/granite/vk/pipeline_layout.h" |
| |
| #include "src/ui/lib/escher/escher.h" |
| #include "src/ui/lib/escher/impl/vulkan_utils.h" |
| #include "src/ui/lib/escher/resources/resource_recycler.h" |
| #include "src/ui/lib/escher/vk/impl/descriptor_set_allocator.h" |
| |
| namespace escher { |
| |
| const ResourceTypeInfo PipelineLayout::kTypeInfo("PipelineLayout", |
| ResourceType::kResource, |
| ResourceType::kPipelineLayout); |
| |
| PipelineLayout::PipelineLayout(ResourceRecycler* resource_recycler, |
| const impl::PipelineLayoutSpec& spec) |
| : Resource(resource_recycler), spec_(spec) { |
| vk::DescriptorSetLayout set_layouts[VulkanLimits::kNumDescriptorSets] = {}; |
| unsigned num_set_layouts = 0; |
| for (unsigned i = 0; i < VulkanLimits::kNumDescriptorSets; i++) { |
| // TODO(ES-83): don't ask for an allocator if the set is masked? |
| // Would be nice, but then we wouldn't have a layout available for the |
| // skipped sets. |
| descriptor_set_allocators_[i] = escher()->GetDescriptorSetAllocator( |
| spec.descriptor_set_layouts(i), spec.immutable_sampler()); |
| set_layouts[i] = descriptor_set_allocators_[i]->vk_layout(); |
| if (spec.descriptor_set_mask() & (1u << i)) { |
| // When creating a layout via vk::Device::CreatePipelineLayout(), Vulkan |
| // uses the index within the array of vk::DescriptorSetLayouts as the |
| // index of that descriptor set. In other words, if your GLSL code |
| // mentions (descriptor_set = 3, binding = 2), then the corresponding |
| // vk::DescriptorSetLayout *must* have been at index 3 of the array passed |
| // to CreatePipelineLayout(). |
| // |
| // So this counter has to equal the index of the highest-referenced |
| // descriptor set, plus one. |
| num_set_layouts = i + 1; |
| } |
| } |
| vk::PipelineLayoutCreateInfo info; |
| if (num_set_layouts) { |
| info.setLayoutCount = num_set_layouts; |
| info.pSetLayouts = set_layouts; |
| } |
| |
| if (spec.num_push_constant_ranges()) { |
| info.pushConstantRangeCount = spec.num_push_constant_ranges(); |
| info.pPushConstantRanges = spec.push_constant_ranges().data(); |
| } |
| |
| pipeline_layout_ = |
| ESCHER_CHECKED_VK_RESULT(vk_device().createPipelineLayout(info, nullptr)); |
| } |
| |
| PipelineLayout::~PipelineLayout() { |
| if (pipeline_layout_) { |
| vk_device().destroyPipelineLayout(pipeline_layout_); |
| } |
| } |
| |
| } // namespace escher |