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[dxbc] Figuring out how to best generate SPIR-V module code

This commit is contained in:
Philip Rebohle 2017-10-16 19:53:17 +02:00
parent aebe359509
commit 0a57a4ddf5
2 changed files with 47 additions and 4 deletions
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37
src/dxbc/dxbc_compiler.cpp
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@ -2,8 +2,9 @@
namespace dxvk {
DxbcCompiler::DxbcCompiler(DxbcProgramVersion version) {
DxbcCompiler::DxbcCompiler(DxbcProgramVersion version)
: m_version(version) {
this->enableCapability(spv::CapabilityShader);
}
@ -19,8 +20,36 @@ namespace dxvk {
Rc<DxvkShader> DxbcCompiler::finalize() {
return new DxvkShader(VK_SHADER_STAGE_COMPUTE_BIT,
DxvkSpirvCodeBuffer(), 0, nullptr);
DxvkSpirvCodeBuffer codeBuffer;
codeBuffer.putHeader(m_counter.numIds());
codeBuffer.append(m_spirvCapabilities);
codeBuffer.append(m_spirvProgramCode);
return new DxvkShader(this->shaderStage(),
std::move(codeBuffer), 0, nullptr);
}
VkShaderStageFlagBits DxbcCompiler::shaderStage() const {
switch (m_version.type()) {
case DxbcProgramType::PixelShader : return VK_SHADER_STAGE_FRAGMENT_BIT;
case DxbcProgramType::VertexShader : return VK_SHADER_STAGE_VERTEX_BIT;
case DxbcProgramType::GeometryShader : return VK_SHADER_STAGE_GEOMETRY_BIT;
case DxbcProgramType::HullShader : return VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT;
case DxbcProgramType::DomainShader : return VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT;
case DxbcProgramType::ComputeShader : return VK_SHADER_STAGE_COMPUTE_BIT;
}
throw DxvkError("DxbcCompiler::shaderStage: Unknown program type");
}
void DxbcCompiler::enableCapability(spv::Capability cap) {
if (m_capabilities.find(cap) == m_capabilities.end()) {
m_spirvCapabilities.putIns (spv::OpCapability, 2);
m_spirvCapabilities.putWord(cap);
m_capabilities.insert(cap);
}
}
}

14
src/dxbc/dxbc_compiler.h
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@ -1,5 +1,7 @@
#pragma once
#include <unordered_set>
#include "../dxvk/dxvk_shader.h"
#include "dxbc_chunk_shex.h"
@ -34,6 +36,18 @@ namespace dxvk {
private:
DxbcProgramVersion m_version;
DxvkSpirvIdCounter m_counter;
std::unordered_set<spv::Capability> m_capabilities;
DxvkSpirvCodeBuffer m_spirvCapabilities;
DxvkSpirvCodeBuffer m_spirvProgramCode;
VkShaderStageFlagBits shaderStage() const;
void enableCapability(spv::Capability cap);
};
}