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Seele/src/Engine/Graphics/Metal/PipelineCache.mm
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#include "PipelineCache.h"
#include "Descriptor.h"
#include "Enums.h"
#include "Metal/MTLLibrary.hpp"
#include "RenderPass.h"
#include "Foundation/NSError.hpp"
#include "Foundation/NSString.hpp"
#include "Graphics.h"
#include "Graphics/Descriptor.h"
#include "Graphics/Enums.h"
#include "Graphics/Metal/Pipeline.h"
#include "Metal/MTLComputePipeline.hpp"
#include "Metal/MTLDevice.hpp"
#include "Metal/MTLRenderCommandEncoder.hpp"
#include "Metal/MTLRenderPipeline.hpp"
#include "Metal/MTLVertexDescriptor.hpp"
#include "Shader.h"
#include "Texture.h"
#include <Foundation/Foundation.h>
#include <iostream>
using namespace Seele;
using namespace Seele::Metal;
PipelineCache::PipelineCache(PGraphics graphics, const std::string& name) : graphics(graphics), cacheFile(name) {}
PipelineCache::~PipelineCache() {}
PGraphicsPipeline PipelineCache::createPipeline(Gfx::LegacyPipelineCreateInfo createInfo) {
PRenderPass renderPass = createInfo.renderPass.cast<RenderPass>();
MTL::RenderPipelineDescriptor* pipelineDescriptor = MTL::RenderPipelineDescriptor::alloc()->init();
MTL::VertexDescriptor* vertexDescriptor = pipelineDescriptor->vertexDescriptor()->init();
MTL::VertexAttributeDescriptorArray* attributes = vertexDescriptor->attributes()->init();
if (createInfo.vertexInput != nullptr) {
const auto& vertexInfo = createInfo.vertexInput->getInfo();
for (size_t attr = 0; attr < vertexInfo.attributes.size(); ++attr) {
MTL::VertexAttributeDescriptor* attribute = attributes->object(attr)->init();
attribute->setBufferIndex(vertexInfo.attributes[attr].binding);
switch (vertexInfo.attributes[attr].format) {
case Gfx::SE_FORMAT_R32G32B32_SFLOAT:
attribute->setFormat(MTL::VertexFormatFloat3);
break;
default:
throw std::logic_error("TODO");
}
attribute->setOffset(vertexInfo.attributes[attr].offset);
}
MTL::VertexBufferLayoutDescriptorArray* bufferLayout = vertexDescriptor->layouts()->init();
for (size_t binding = 0; binding < vertexInfo.bindings.size(); ++binding) {
MTL::VertexBufferLayoutDescriptor* buffer = bufferLayout->object(binding)->init();
buffer->setStride(vertexInfo.bindings[binding].stride);
buffer->setStepRate(1);
switch (vertexInfo.bindings[binding].inputRate) {
case Gfx::SE_VERTEX_INPUT_RATE_VERTEX:
buffer->setStepFunction(MTL::VertexStepFunctionPerVertex);
break;
case Gfx::SE_VERTEX_INPUT_RATE_INSTANCE:
buffer->setStepFunction(MTL::VertexStepFunctionPerInstance);
break;
}
}
}
pipelineDescriptor->setVertexDescriptor(vertexDescriptor);
auto vertShader = createInfo.vertexShader.cast<VertexShader>();
Array<uint32> vertexSets = vertShader->usedDescriptors;
MTL::Function* vertexFunction = vertShader->getFunction();
Array<uint32> fragmentSets;
MTL::Function* fragmentFunction = nullptr;
pipelineDescriptor->setVertexFunction(vertexFunction);
if (createInfo.fragmentShader != nullptr) {
auto fragShader = createInfo.fragmentShader.cast<FragmentShader>();
fragmentSets = fragShader->usedDescriptors;
fragmentFunction = fragShader->getFunction();
pipelineDescriptor->setFragmentFunction(fragmentFunction);
}
pipelineDescriptor->setInputPrimitiveTopology(cast(createInfo.topology));
for(uint c = 0; c < renderPass->getLayout().colorAttachments.size(); ++c) {
const auto& color = renderPass->getLayout().colorAttachments[c];
MTL::RenderPipelineColorAttachmentDescriptor* desc = MTL::RenderPipelineColorAttachmentDescriptor::alloc()->init();
desc->setWriteMask(MTL::ColorWriteMaskAll);
desc->setPixelFormat(cast(color.getFormat()));
desc->setAlphaBlendOperation(MTL::BlendOperationAdd);
desc->setDestinationAlphaBlendFactor(MTL::BlendFactorDestinationAlpha);
desc->setBlendingEnabled(false);
pipelineDescriptor->colorAttachments()->setObject(desc, c);
}
MTL::DepthStencilDescriptor* depthDescriptor = MTL::DepthStencilDescriptor::alloc()->init();
if (createInfo.renderPass->getLayout().depthAttachment.getTexture() != nullptr) {
depthDescriptor->setDepthWriteEnabled(createInfo.depthStencilState.depthWriteEnable);
depthDescriptor->setDepthCompareFunction(cast(createInfo.depthStencilState.depthCompareOp));
pipelineDescriptor->setDepthAttachmentPixelFormat(
cast(createInfo.renderPass->getLayout().depthAttachment.getTexture().cast<Texture2D>()->getFormat()));
}
pipelineDescriptor->setAlphaToCoverageEnabled(createInfo.multisampleState.alphaCoverageEnable);
pipelineDescriptor->setAlphaToOneEnabled(createInfo.multisampleState.alphaToOneEnable);
pipelineDescriptor->setRasterSampleCount(createInfo.multisampleState.samples);
pipelineDescriptor->setRasterizationEnabled(!createInfo.rasterizationState.rasterizerDiscardEnable);
MTL::DepthStencilState* depthState = graphics->getDevice()->newDepthStencilState(depthDescriptor);
depthDescriptor->release();
uint32 hash = pipelineDescriptor->hash();
if (graphicsPipelines.contains(hash)) {
return graphicsPipelines[hash];
}
MTL::PrimitiveType type = MTL::PrimitiveTypeTriangle;
switch (createInfo.topology) {
case Gfx::SE_PRIMITIVE_TOPOLOGY_POINT_LIST:
type = MTL::PrimitiveTypePoint;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_LINE_LIST:
type = MTL::PrimitiveTypeLine;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_LINE_STRIP:
type = MTL::PrimitiveTypeLineStrip;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST:
type = MTL::PrimitiveTypeTriangle;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
type = MTL::PrimitiveTypeTriangleStrip;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN:
type = MTL::PrimitiveTypeTriangle;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY:
type = MTL::PrimitiveTypeLine;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY:
type = MTL::PrimitiveTypeLineStrip;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY:
type = MTL::PrimitiveTypeTriangle;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY:
type = MTL::PrimitiveTypeTriangleStrip;
break;
case Gfx::SE_PRIMITIVE_TOPOLOGY_PATCH_LIST:
type = MTL::PrimitiveTypeTriangle;
break;
}
NS::Error* error;
graphicsPipelines[hash] = new GraphicsPipeline(
graphics, type, graphics->getDevice()->newRenderPipelineState(pipelineDescriptor, &error), std::move(createInfo.pipelineLayout));
if (error) {
std::cout << error->localizedDescription()->cString(NS::ASCIIStringEncoding) << std::endl;
assert(false);
}
pipelineDescriptor->release();
graphicsPipelines[hash]->vertexSets = vertexSets;
graphicsPipelines[hash]->vertexFunction = vertexFunction;
graphicsPipelines[hash]->fragmentSets = fragmentSets;
graphicsPipelines[hash]->fragmentFunction = fragmentFunction;
graphicsPipelines[hash]->depth = depthState;
return graphicsPipelines[hash];
}
PGraphicsPipeline PipelineCache::createPipeline(Gfx::MeshPipelineCreateInfo createInfo) {
PRenderPass renderPass = createInfo.renderPass.cast<RenderPass>();
MTL::MeshRenderPipelineDescriptor* pipelineDescriptor = MTL::MeshRenderPipelineDescriptor::alloc()->init();
auto meshShader = createInfo.meshShader.cast<MeshShader>();
Array<uint32> meshSets = meshShader->usedDescriptors;
MTL::Function* meshFunction = meshShader->getFunction();
Array<uint32> taskSets;
MTL::Function* taskFunction = nullptr;
Array<uint32> fragmentSets;
MTL::Function* fragmentFunction = nullptr;
pipelineDescriptor->setMeshFunction(meshFunction);
if (createInfo.taskShader != nullptr) {
auto taskShader = createInfo.taskShader.cast<TaskShader>();
taskSets = taskShader->usedDescriptors;
taskFunction = taskShader->getFunction();
pipelineDescriptor->setObjectFunction(taskFunction);
}
if (createInfo.fragmentShader != nullptr) {
auto fragShader = createInfo.fragmentShader.cast<FragmentShader>();
fragmentSets = fragShader->usedDescriptors;
fragmentFunction = fragShader->getFunction();
pipelineDescriptor->setFragmentFunction(fragmentFunction);
}
for(uint c = 0; c < renderPass->getLayout().colorAttachments.size(); ++c) {
const auto& color = renderPass->getLayout().colorAttachments[c];
MTL::RenderPipelineColorAttachmentDescriptor* desc = MTL::RenderPipelineColorAttachmentDescriptor::alloc()->init();
desc->setWriteMask(MTL::ColorWriteMaskAll);
desc->setPixelFormat(cast(color.getFormat()));
desc->setAlphaBlendOperation(MTL::BlendOperationAdd);
desc->setDestinationAlphaBlendFactor(MTL::BlendFactorDestinationAlpha);
desc->setBlendingEnabled(false);
pipelineDescriptor->colorAttachments()->setObject(desc, c);
}
if (createInfo.renderPass->getLayout().depthAttachment.getTexture() != nullptr) {
pipelineDescriptor->setDepthAttachmentPixelFormat(
cast(createInfo.renderPass->getLayout().depthAttachment.getTexture().cast<Texture2D>()->getFormat()));
}
pipelineDescriptor->setAlphaToCoverageEnabled(createInfo.multisampleState.alphaCoverageEnable);
pipelineDescriptor->setAlphaToOneEnabled(createInfo.multisampleState.alphaToOneEnable);
pipelineDescriptor->setRasterSampleCount(createInfo.multisampleState.samples);
pipelineDescriptor->setRasterizationEnabled(!createInfo.rasterizationState.rasterizerDiscardEnable);
uint32 hash = pipelineDescriptor->hash();
if (graphicsPipelines.contains(hash)) {
return graphicsPipelines[hash];
}
NS::Error* error = nullptr;
MTL::AutoreleasedRenderPipelineReflection reflection;
graphicsPipelines[hash] = new GraphicsPipeline(
graphics, MTL::PrimitiveTypeTriangle,
graphics->getDevice()->newRenderPipelineState(pipelineDescriptor, MTL::PipelineOptionNone, &reflection, &error),
std::move(createInfo.pipelineLayout));
if (error) {
std::cout << error->debugDescription()->utf8String() << std::endl;
}
pipelineDescriptor->release();
graphicsPipelines[hash]->taskSets = taskSets;
graphicsPipelines[hash]->taskFunction = taskFunction;
graphicsPipelines[hash]->meshSets = meshSets;
graphicsPipelines[hash]->meshFunction = meshFunction;
graphicsPipelines[hash]->fragmentSets = fragmentSets;
graphicsPipelines[hash]->fragmentFunction = fragmentFunction;
return graphicsPipelines[hash];
}
PComputePipeline PipelineCache::createPipeline(Gfx::ComputePipelineCreateInfo createInfo) {
PComputeShader shader = createInfo.computeShader.cast<ComputeShader>();
uint32 hash = shader->getShaderHash();
if (computePipelines.contains(hash)) {
return computePipelines[hash];
}
NS::Error* error;
computePipelines[hash] = new ComputePipeline(graphics, graphics->getDevice()->newComputePipelineState(shader->getFunction(), &error),
std::move(createInfo.pipelineLayout));
assert(!error);
computePipelines[hash]->computeFunction = shader->getFunction();
return computePipelines[hash];
}