71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
// Copyright 2018 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn_native/vulkan/PipelineLayoutVk.h"
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#include "dawn_native/vulkan/BindGroupLayoutVk.h"
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#include "dawn_native/vulkan/DeviceVk.h"
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#include "dawn_native/vulkan/FencedDeleter.h"
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#include "common/BitSetIterator.h"
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namespace dawn_native { namespace vulkan {
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PipelineLayout::PipelineLayout(Device* device, const PipelineLayoutDescriptor* descriptor)
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: PipelineLayoutBase(device, descriptor) {
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// Compute the array of VkDescriptorSetLayouts that will be chained in the create info.
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// TODO(cwallez@chromium.org) Vulkan doesn't allow holes in this array, should we expose
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// this constraints at the Dawn level?
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uint32_t numSetLayouts = 0;
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std::array<VkDescriptorSetLayout, kMaxBindGroups> setLayouts;
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for (uint32_t setIndex : IterateBitSet(GetBindGroupLayoutsMask())) {
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setLayouts[numSetLayouts] = ToBackend(GetBindGroupLayout(setIndex))->GetHandle();
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numSetLayouts++;
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}
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// Specify Dawn's push constant range on all pipeline layouts because we don't know which
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// pipelines might use it.
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VkPushConstantRange pushConstantRange;
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pushConstantRange.stageFlags = VK_SHADER_STAGE_ALL;
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pushConstantRange.offset = 0;
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pushConstantRange.size = 4 * kMaxPushConstants;
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VkPipelineLayoutCreateInfo createInfo;
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createInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
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createInfo.pNext = nullptr;
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createInfo.flags = 0;
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createInfo.setLayoutCount = numSetLayouts;
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createInfo.pSetLayouts = setLayouts.data();
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createInfo.pushConstantRangeCount = 1;
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createInfo.pPushConstantRanges = &pushConstantRange;
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if (device->fn.CreatePipelineLayout(device->GetVkDevice(), &createInfo, nullptr,
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&mHandle) != VK_SUCCESS) {
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ASSERT(false);
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}
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}
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PipelineLayout::~PipelineLayout() {
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if (mHandle != VK_NULL_HANDLE) {
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ToBackend(GetDevice())->GetFencedDeleter()->DeleteWhenUnused(mHandle);
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mHandle = VK_NULL_HANDLE;
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}
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}
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VkPipelineLayout PipelineLayout::GetHandle() const {
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return mHandle;
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}
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}} // namespace dawn_native::vulkan
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