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// Copyright 2018 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/vulkan/PipelineLayoutVk.h"
#include "common/BitSetIterator.h"
#include "dawn_native/vulkan/BindGroupLayoutVk.h"
#include "dawn_native/vulkan/DeviceVk.h"
#include "dawn_native/vulkan/FencedDeleter.h"
#include "dawn_native/vulkan/VulkanError.h"
namespace dawn_native { namespace vulkan {
// static
ResultOrError<PipelineLayout*> PipelineLayout::Create(
Device* device,
const PipelineLayoutDescriptor* descriptor) {
Ref<PipelineLayout> layout = AcquireRef(new PipelineLayout(device, descriptor));
DAWN_TRY(layout->Initialize());
return layout.Detach();
}
MaybeError PipelineLayout::Initialize() {
// Compute the array of VkDescriptorSetLayouts that will be chained in the create info.
// TODO(cwallez@chromium.org) Vulkan doesn't allow holes in this array, should we expose
// this constraints at the Dawn level?
uint32_t numSetLayouts = 0;
std::array<VkDescriptorSetLayout, kMaxBindGroups> setLayouts;
for (BindGroupIndex setIndex : IterateBitSet(GetBindGroupLayoutsMask())) {
setLayouts[numSetLayouts] = ToBackend(GetBindGroupLayout(setIndex))->GetHandle();
numSetLayouts++;
}
VkPipelineLayoutCreateInfo createInfo;
createInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
createInfo.pNext = nullptr;
createInfo.flags = 0;
createInfo.setLayoutCount = numSetLayouts;
createInfo.pSetLayouts = AsVkArray(setLayouts.data());
createInfo.pushConstantRangeCount = 0;
createInfo.pPushConstantRanges = nullptr;
Device* device = ToBackend(GetDevice());
return CheckVkSuccess(
device->fn.CreatePipelineLayout(device->GetVkDevice(), &createInfo, nullptr, &*mHandle),
"CreatePipelineLayout");
}
PipelineLayout::~PipelineLayout() {
if (mHandle != VK_NULL_HANDLE) {
ToBackend(GetDevice())->GetFencedDeleter()->DeleteWhenUnused(mHandle);
mHandle = VK_NULL_HANDLE;
}
}
VkPipelineLayout PipelineLayout::GetHandle() const {
return mHandle;
}
}} // namespace dawn_native::vulkan