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OpenGL: Implement RenderPipelineLayout

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This commit is contained in:
Lynix
2020-04-26 18:21:38 +02:00
parent 0b05feb7e3
commit 32157503e8
9 changed files with 127 additions and 119 deletions
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3
src/Nazara/OpenGLRenderer/OpenGLDevice.cpp
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@@ -5,6 +5,7 @@
#include <Nazara/OpenGLRenderer/OpenGLDevice.hpp>
#include <Nazara/Renderer/CommandPool.hpp>
#include <Nazara/OpenGLRenderer/OpenGLBuffer.hpp>
#include <Nazara/OpenGLRenderer/OpenGLRenderPipelineLayout.hpp>
#include <Nazara/OpenGLRenderer/OpenGLShaderStage.hpp>
#include <Nazara/OpenGLRenderer/OpenGLTexture.hpp>
#include <Nazara/OpenGLRenderer/Wrapper/Loader.hpp>
@@ -58,7 +59,7 @@ namespace Nz
std::shared_ptr<RenderPipelineLayout> OpenGLDevice::InstantiateRenderPipelineLayout(RenderPipelineLayoutInfo pipelineLayoutInfo)
{
return {};
return std::make_shared<OpenGLRenderPipelineLayout>(std::move(pipelineLayoutInfo));
}
std::shared_ptr<ShaderStageImpl> OpenGLDevice::InstantiateShaderStage(ShaderStageType type, ShaderLanguage lang, const void* source, std::size_t sourceSize)

95
src/Nazara/OpenGLRenderer/OpenGLRenderPipelineLayout.cpp
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@@ -2,8 +2,6 @@
// This file is part of the "Nazara Engine - OpenGL Renderer"
// For conditions of distribution and use, see copyright notice in Config.hpp
#if 0
#include <Nazara/OpenGLRenderer/OpenGLRenderPipelineLayout.hpp>
#include <Nazara/Core/ErrorFlags.hpp>
#include <Nazara/Core/MemoryHelper.hpp>
@@ -15,6 +13,29 @@
namespace Nz
{
OpenGLRenderPipelineLayout::OpenGLRenderPipelineLayout(RenderPipelineLayoutInfo layoutInfo) :
m_textureDescriptorCount(0),
m_uniformBufferDescriptorCount(0),
m_layoutInfo(std::move(layoutInfo))
{
for (const auto& bindingInfo : m_layoutInfo.bindings)
{
switch (bindingInfo.type)
{
case ShaderBindingType::Texture:
m_textureDescriptorCount++;
break;
case ShaderBindingType::UniformBuffer:
m_uniformBufferDescriptorCount++;
break;
default:
throw std::runtime_error(("unknown binding type 0x" + String::Number(UnderlyingCast(bindingInfo.type), 16)).ToStdString());
}
}
}
OpenGLRenderPipelineLayout::~OpenGLRenderPipelineLayout()
{
for (auto& pool : m_descriptorPools)
@@ -46,50 +67,15 @@ namespace Nz
return bindingPtr;
}
bool OpenGLRenderPipelineLayout::Create(Vk::Device& device, RenderPipelineLayoutInfo layoutInfo)
{
m_device = &device;
m_layoutInfo = std::move(layoutInfo);
StackVector<VkDescriptorSetLayoutBinding> layoutBindings = NazaraStackVector(VkDescriptorSetLayoutBinding, m_layoutInfo.bindings.size());
for (const auto& bindingInfo : m_layoutInfo.bindings)
{
VkDescriptorSetLayoutBinding& layoutBinding = layoutBindings.emplace_back();
layoutBinding.binding = bindingInfo.index;
layoutBinding.descriptorCount = 1U;
layoutBinding.descriptorType = ToOpenGL(bindingInfo.type);
layoutBinding.stageFlags = ToOpenGL(bindingInfo.shaderStageFlags);
}
if (!m_descriptorSetLayout.Create(*m_device, UInt32(layoutBindings.size()), layoutBindings.data()))
return false;
if (!m_pipelineLayout.Create(*m_device, m_descriptorSetLayout))
return false;
return true;
}
auto OpenGLRenderPipelineLayout::AllocatePool() -> DescriptorPool&
{
StackVector<VkDescriptorPoolSize> poolSizes = NazaraStackVector(VkDescriptorPoolSize, m_layoutInfo.bindings.size());
constexpr UInt32 MaxSet = 128;
for (const auto& bindingInfo : m_layoutInfo.bindings)
{
VkDescriptorPoolSize& poolSize = poolSizes.emplace_back();
poolSize.descriptorCount = MaxSet;
poolSize.type = ToOpenGL(bindingInfo.type);
}
DescriptorPool pool;
if (!pool.descriptorPool.Create(*m_device, MaxSet, UInt32(poolSizes.size()), poolSizes.data(), VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT))
throw std::runtime_error("Failed to allocate new descriptor pool: " + TranslateOpenGLError(pool.descriptorPool.GetLastErrorCode()));
pool.freeBindings.Resize(MaxSet, true);
pool.storage = std::make_unique<DescriptorPool::BindingStorage[]>(MaxSet);
pool.textureDescriptor.resize(m_textureDescriptorCount * MaxSet);
pool.uniformBufferDescriptor.resize(m_uniformBufferDescriptorCount * MaxSet);
return m_descriptorPools.emplace_back(std::move(pool));
}
@@ -102,17 +88,30 @@ namespace Nz
if (freeBindingId == pool.freeBindings.npos)
return {}; //< No free binding in this pool
Vk::DescriptorSet descriptorSet = pool.descriptorPool.AllocateDescriptorSet(m_descriptorSetLayout);
if (!descriptorSet)
{
NazaraWarning("Failed to allocate descriptor set: " + TranslateOpenGLError(pool.descriptorPool.GetLastErrorCode()));
return {};
}
pool.freeBindings.Reset(freeBindingId);
OpenGLShaderBinding* freeBindingMemory = reinterpret_cast<OpenGLShaderBinding*>(&pool.storage[freeBindingId]);
return ShaderBindingPtr(PlacementNew(freeBindingMemory, *this, poolIndex, freeBindingId, std::move(descriptorSet)));
return ShaderBindingPtr(PlacementNew(freeBindingMemory, *this, poolIndex, freeBindingId));
}
auto OpenGLRenderPipelineLayout::GetTextureDescriptor(std::size_t poolIndex, std::size_t bindingIndex, std::size_t textureIndex) -> TextureDescriptor&
{
assert(poolIndex < m_descriptorPools.size());
auto& pool = m_descriptorPools[poolIndex];
assert(!pool.freeBindings.Test(bindingIndex));
assert(textureIndex < m_textureDescriptorCount);
return pool.textureDescriptor[bindingIndex * m_textureDescriptorCount + textureIndex];
}
auto OpenGLRenderPipelineLayout::GetUniformBufferDescriptor(std::size_t poolIndex, std::size_t bindingIndex, std::size_t uniformBufferIndex) -> UniformBufferDescriptor&
{
assert(poolIndex < m_descriptorPools.size());
auto& pool = m_descriptorPools[poolIndex];
assert(!pool.freeBindings.Test(bindingIndex));
assert(uniformBufferIndex < m_uniformBufferDescriptorCount);
return pool.uniformBufferDescriptor[bindingIndex * m_uniformBufferDescriptorCount + uniformBufferIndex];
}
void OpenGLRenderPipelineLayout::Release(ShaderBinding& binding)
@@ -136,5 +135,3 @@ namespace Nz
TryToShrink();
}
}
#endif

73
src/Nazara/OpenGLRenderer/OpenGLShaderBinding.cpp
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@@ -2,8 +2,6 @@
// This file is part of the "Nazara Engine - OpenGL Renderer"
// For conditions of distribution and use, see copyright notice in Config.hpp
#if 0
#include <Nazara/OpenGLRenderer/OpenGLShaderBinding.hpp>
#include <Nazara/Core/Algorithm.hpp>
#include <Nazara/Core/StackVector.hpp>
@@ -17,57 +15,58 @@ namespace Nz
{
void OpenGLShaderBinding::Update(std::initializer_list<Binding> bindings)
{
StackVector<VkDescriptorBufferInfo> bufferBinding = NazaraStackVector(VkDescriptorBufferInfo, bindings.size());
StackVector<VkDescriptorImageInfo> imageBinding = NazaraStackVector(VkDescriptorImageInfo, bindings.size());
StackVector<VkWriteDescriptorSet> writeOps = NazaraStackVector(VkWriteDescriptorSet, bindings.size());
const auto& layoutInfo = m_owner.GetLayoutInfo();
for (const Binding& binding : bindings)
{
VkWriteDescriptorSet& writeOp = writeOps.emplace_back();
writeOp.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
writeOp.dstSet = m_descriptorSet;
writeOp.dstBinding = UInt32(binding.bindingIndex);
assert(binding.bindingIndex < layoutInfo.bindings.size());
const auto& bindingDesc = layoutInfo.bindings[binding.bindingIndex];
std::visit([&](auto&& arg)
std::size_t resourceIndex = 0;
for (std::size_t i = binding.bindingIndex; i > 0; --i)
{
using T = std::decay_t<decltype(arg)>;
// Use i-1 to prevent underflow in for loop
if (layoutInfo.bindings[i - 1].type == bindingDesc.type)
resourceIndex++;
}
if constexpr (std::is_same_v<T, TextureBinding>)
switch (bindingDesc.type)
{
case ShaderBindingType::Texture:
{
OpenGLTexture& vkTexture = *static_cast<OpenGLTexture*>(arg.texture);
OpenGLTextureSampler& vkSampler = *static_cast<OpenGLTextureSampler*>(arg.sampler);
if (!std::holds_alternative<TextureBinding>(binding.content))
throw std::runtime_error("binding #" + std::to_string(binding.bindingIndex) + " is a texture but another binding type has been supplied");
VkDescriptorImageInfo& imageInfo = imageBinding.emplace_back();
imageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
imageInfo.imageView = vkTexture.GetImageView();
imageInfo.sampler = vkSampler.GetSampler();
const TextureBinding& texBinding = std::get<TextureBinding>(binding.content);
writeOp.descriptorCount = 1;
writeOp.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
OpenGLTexture& glTexture = *static_cast<OpenGLTexture*>(texBinding.texture);
OpenGLTextureSampler& glSampler = *static_cast<OpenGLTextureSampler*>(texBinding.sampler);
writeOp.pImageInfo = &imageInfo;
auto& textureDescriptor = m_owner.GetTextureDescriptor(m_poolIndex, m_bindingIndex, resourceIndex);
textureDescriptor.sampler = glSampler.GetSampler().GetObjectId();
textureDescriptor.texture = glTexture.GetTexture().GetObjectId();
break;
}
else if constexpr (std::is_same_v<T, UniformBufferBinding>)
case ShaderBindingType::UniformBuffer:
{
OpenGLBuffer& vkBuffer = *static_cast<OpenGLBuffer*>(arg.buffer);
if (!std::holds_alternative<UniformBufferBinding>(binding.content))
throw std::runtime_error("binding #" + std::to_string(binding.bindingIndex) + " is an uniform buffer but another binding type has been supplied");
VkDescriptorBufferInfo& bufferInfo = bufferBinding.emplace_back();
bufferInfo.buffer = vkBuffer.GetBuffer();
bufferInfo.offset = arg.offset;
bufferInfo.range = arg.range;
const UniformBufferBinding& uboBinding = std::get<UniformBufferBinding>(binding.content);
writeOp.descriptorCount = 1;
writeOp.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
OpenGLBuffer& glBuffer = *static_cast<OpenGLBuffer*>(uboBinding.buffer);
if (glBuffer.GetType() != BufferType_Uniform)
throw std::runtime_error("expected uniform buffer");
writeOp.pBufferInfo = &bufferInfo;
auto& uboDescriptor = m_owner.GetUniformBufferDescriptor(m_poolIndex, m_bindingIndex, resourceIndex);
uboDescriptor.buffer = glBuffer.GetBuffer().GetObjectId();
uboDescriptor.offset = uboBinding.offset;
uboDescriptor.size = uboBinding.range;
break;
}
else
static_assert(AlwaysFalse<T>::value, "non-exhaustive visitor");
}, binding.content);
}
}
m_owner.GetDevice()->vkUpdateDescriptorSets(*m_owner.GetDevice(), UInt32(writeOps.size()), writeOps.data(), 0U, nullptr);
}
void OpenGLShaderBinding::Release()
@@ -75,5 +74,3 @@ namespace Nz
m_owner.Release(*this);
}
}
#endif