blob: eb31182c0a415f3b40a30d5a168d94aaa7412ed8 [file] [log] [blame]
// 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/BindGroupVk.h"
#include "common/BitSetIterator.h"
#include "dawn_native/vulkan/BindGroupLayoutVk.h"
#include "dawn_native/vulkan/BufferVk.h"
#include "dawn_native/vulkan/DeviceVk.h"
#include "dawn_native/vulkan/FencedDeleter.h"
#include "dawn_native/vulkan/SamplerVk.h"
#include "dawn_native/vulkan/TextureVk.h"
#include "dawn_native/vulkan/VulkanError.h"
namespace dawn_native { namespace vulkan {
// static
ResultOrError<BindGroup*> BindGroup::Create(Device* device,
const BindGroupDescriptor* descriptor) {
return ToBackend(descriptor->layout)->AllocateBindGroup(device, descriptor);
}
BindGroup::BindGroup(Device* device,
const BindGroupDescriptor* descriptor,
DescriptorSetAllocation descriptorSetAllocation)
: BindGroupBase(this, device, descriptor),
mDescriptorSetAllocation(descriptorSetAllocation) {
// Now do a write of a single descriptor set with all possible chained data allocated on the
// stack.
uint32_t numWrites = 0;
std::array<VkWriteDescriptorSet, kMaxBindingsPerGroup> writes;
std::array<VkDescriptorBufferInfo, kMaxBindingsPerGroup> writeBufferInfo;
std::array<VkDescriptorImageInfo, kMaxBindingsPerGroup> writeImageInfo;
for (const auto& it : GetLayout()->GetBindingMap()) {
BindingNumber bindingNumber = it.first;
BindingIndex bindingIndex = it.second;
const BindingInfo& bindingInfo = GetLayout()->GetBindingInfo(bindingIndex);
auto& write = writes[numWrites];
write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write.pNext = nullptr;
write.dstSet = GetHandle();
write.dstBinding = static_cast<uint32_t>(bindingNumber);
write.dstArrayElement = 0;
write.descriptorCount = 1;
write.descriptorType =
VulkanDescriptorType(bindingInfo.type, bindingInfo.hasDynamicOffset);
switch (bindingInfo.type) {
case wgpu::BindingType::UniformBuffer:
case wgpu::BindingType::StorageBuffer:
case wgpu::BindingType::ReadonlyStorageBuffer: {
BufferBinding binding = GetBindingAsBufferBinding(bindingIndex);
writeBufferInfo[numWrites].buffer = ToBackend(binding.buffer)->GetHandle();
writeBufferInfo[numWrites].offset = binding.offset;
writeBufferInfo[numWrites].range = binding.size;
write.pBufferInfo = &writeBufferInfo[numWrites];
break;
}
case wgpu::BindingType::Sampler:
case wgpu::BindingType::ComparisonSampler: {
Sampler* sampler = ToBackend(GetBindingAsSampler(bindingIndex));
writeImageInfo[numWrites].sampler = sampler->GetHandle();
write.pImageInfo = &writeImageInfo[numWrites];
break;
}
case wgpu::BindingType::SampledTexture: {
TextureView* view = ToBackend(GetBindingAsTextureView(bindingIndex));
writeImageInfo[numWrites].imageView = view->GetHandle();
// TODO(cwallez@chromium.org): This isn't true in general: if the image has
// two read-only usages one of which is Sampled. Works for now though :)
writeImageInfo[numWrites].imageLayout =
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
write.pImageInfo = &writeImageInfo[numWrites];
break;
}
case wgpu::BindingType::ReadonlyStorageTexture:
case wgpu::BindingType::WriteonlyStorageTexture: {
TextureView* view = ToBackend(GetBindingAsTextureView(bindingIndex));
writeImageInfo[numWrites].imageView = view->GetHandle();
writeImageInfo[numWrites].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
write.pImageInfo = &writeImageInfo[numWrites];
break;
}
default:
UNREACHABLE();
}
numWrites++;
}
// TODO(cwallez@chromium.org): Batch these updates
device->fn.UpdateDescriptorSets(device->GetVkDevice(), numWrites, writes.data(), 0,
nullptr);
}
BindGroup::~BindGroup() {
ToBackend(GetLayout())->DeallocateBindGroup(this, &mDescriptorSetAllocation);
}
VkDescriptorSet BindGroup::GetHandle() const {
return mDescriptorSetAllocation.set;
}
}} // namespace dawn_native::vulkan