84ea825ea3
Refactor SPIRVToMSLConverterContext into distinct SPIRVToMSLConversionConfiguration and SPIRVToMSLConversionResults for conversion input and output, respectively. Update to latest SPIRV-Cross version. Update What's New document.
459 lines
18 KiB
C++
459 lines
18 KiB
C++
/*
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* SPIRVToMSLConverter.cpp
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*
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* Copyright (c) 2014-2019 The Brenwill Workshop Ltd. (http://www.brenwill.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "SPIRVToMSLConverter.h"
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#include "MVKCommonEnvironment.h"
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#include "MVKStrings.h"
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#include "FileSupport.h"
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#include "SPIRVSupport.h"
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#include <fstream>
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using namespace mvk;
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using namespace std;
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using namespace SPIRV_CROSS_NAMESPACE;
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#pragma mark -
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#pragma mark SPIRVToMSLConversionConfiguration
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// Returns whether the vector contains the value (using a matches(T&) comparison member function). */
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template<class T>
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bool containsMatching(const vector<T>& vec, const T& val) {
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for (const T& vecVal : vec) { if (vecVal.matches(val)) { return true; } }
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return false;
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}
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConversionOptions::matches(const SPIRVToMSLConversionOptions& other) const {
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if (entryPointStage != other.entryPointStage) { return false; }
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if (entryPointName != other.entryPointName) { return false; }
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if (tessPatchKind != other.tessPatchKind) { return false; }
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if (numTessControlPoints != other.numTessControlPoints) { return false; }
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if (!!shouldFlipVertexY != !!other.shouldFlipVertexY) { return false; }
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if (mslOptions.platform != other.mslOptions.platform) { return false; }
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if (mslOptions.msl_version != other.mslOptions.msl_version) { return false; }
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if (mslOptions.texel_buffer_texture_width != other.mslOptions.texel_buffer_texture_width) { return false; }
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if (mslOptions.swizzle_buffer_index != other.mslOptions.swizzle_buffer_index) { return false; }
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if (mslOptions.indirect_params_buffer_index != other.mslOptions.indirect_params_buffer_index) { return false; }
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if (mslOptions.shader_output_buffer_index != other.mslOptions.shader_output_buffer_index) { return false; }
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if (mslOptions.shader_patch_output_buffer_index != other.mslOptions.shader_patch_output_buffer_index) { return false; }
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if (mslOptions.shader_tess_factor_buffer_index != other.mslOptions.shader_tess_factor_buffer_index) { return false; }
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if (mslOptions.buffer_size_buffer_index != other.mslOptions.buffer_size_buffer_index) { return false; }
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if (mslOptions.shader_input_wg_index != other.mslOptions.shader_input_wg_index) { return false; }
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if (!!mslOptions.enable_point_size_builtin != !!other.mslOptions.enable_point_size_builtin) { return false; }
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if (!!mslOptions.disable_rasterization != !!other.mslOptions.disable_rasterization) { return false; }
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if (!!mslOptions.capture_output_to_buffer != !!other.mslOptions.capture_output_to_buffer) { return false; }
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if (!!mslOptions.swizzle_texture_samples != !!other.mslOptions.swizzle_texture_samples) { return false; }
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if (!!mslOptions.tess_domain_origin_lower_left != !!other.mslOptions.tess_domain_origin_lower_left) { return false; }
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if (mslOptions.argument_buffers != other.mslOptions.argument_buffers) { return false; }
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if (mslOptions.pad_fragment_output_components != other.mslOptions.pad_fragment_output_components) { return false; }
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if (mslOptions.texture_buffer_native != other.mslOptions.texture_buffer_native) { return false; }
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return true;
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}
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MVK_PUBLIC_SYMBOL std::string SPIRVToMSLConversionOptions::printMSLVersion(uint32_t mslVersion, bool includePatch) {
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string verStr;
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uint32_t major = mslVersion / 10000;
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verStr += to_string(major);
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uint32_t minor = (mslVersion - CompilerMSL::Options::make_msl_version(major)) / 100;
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verStr += ".";
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verStr += to_string(minor);
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if (includePatch) {
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uint32_t patch = mslVersion - CompilerMSL::Options::make_msl_version(major, minor);
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verStr += ".";
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verStr += to_string(patch);
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}
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return verStr;
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}
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MVK_PUBLIC_SYMBOL SPIRVToMSLConversionOptions::SPIRVToMSLConversionOptions() {
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mslOptions.pad_fragment_output_components = true;
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#if MVK_MACOS
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mslOptions.platform = CompilerMSL::Options::macOS;
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#endif
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#if MVK_IOS
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mslOptions.platform = CompilerMSL::Options::iOS;
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#endif
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}
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MVK_PUBLIC_SYMBOL bool MSLVertexAttribute::matches(const MSLVertexAttribute& other) const {
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if (vertexAttribute.location != other.vertexAttribute.location) { return false; }
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if (vertexAttribute.msl_buffer != other.vertexAttribute.msl_buffer) { return false; }
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if (vertexAttribute.msl_offset != other.vertexAttribute.msl_offset) { return false; }
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if (vertexAttribute.msl_stride != other.vertexAttribute.msl_stride) { return false; }
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if (vertexAttribute.format != other.vertexAttribute.format) { return false; }
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if (vertexAttribute.builtin != other.vertexAttribute.builtin) { return false; }
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if (!!vertexAttribute.per_instance != !!other.vertexAttribute.per_instance) { return false; }
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return true;
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}
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MVK_PUBLIC_SYMBOL bool mvk::MSLResourceBinding::matches(const MSLResourceBinding& other) const {
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if (resourceBinding.stage != other.resourceBinding.stage) { return false; }
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if (resourceBinding.desc_set != other.resourceBinding.desc_set) { return false; }
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if (resourceBinding.binding != other.resourceBinding.binding) { return false; }
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if (resourceBinding.msl_buffer != other.resourceBinding.msl_buffer) { return false; }
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if (resourceBinding.msl_texture != other.resourceBinding.msl_texture) { return false; }
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if (resourceBinding.msl_sampler != other.resourceBinding.msl_sampler) { return false; }
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if (requiresConstExprSampler != other.requiresConstExprSampler) { return false; }
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// If requiresConstExprSampler is false, constExprSampler can be ignored
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if (requiresConstExprSampler) {
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if (constExprSampler.coord != other.constExprSampler.coord) { return false; }
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if (constExprSampler.min_filter != other.constExprSampler.min_filter) { return false; }
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if (constExprSampler.mag_filter != other.constExprSampler.mag_filter) { return false; }
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if (constExprSampler.mip_filter != other.constExprSampler.mip_filter) { return false; }
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if (constExprSampler.s_address != other.constExprSampler.s_address) { return false; }
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if (constExprSampler.t_address != other.constExprSampler.t_address) { return false; }
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if (constExprSampler.r_address != other.constExprSampler.r_address) { return false; }
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if (constExprSampler.compare_func != other.constExprSampler.compare_func) { return false; }
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if (constExprSampler.border_color != other.constExprSampler.border_color) { return false; }
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if (constExprSampler.lod_clamp_min != other.constExprSampler.lod_clamp_min) { return false; }
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if (constExprSampler.lod_clamp_max != other.constExprSampler.lod_clamp_max) { return false; }
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if (constExprSampler.max_anisotropy != other.constExprSampler.max_anisotropy) { return false; }
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if (constExprSampler.compare_enable != other.constExprSampler.compare_enable) { return false; }
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if (constExprSampler.lod_clamp_enable != other.constExprSampler.lod_clamp_enable) { return false; }
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if (constExprSampler.anisotropy_enable != other.constExprSampler.anisotropy_enable) { return false; }
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}
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return true;
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}
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConversionConfiguration::stageSupportsVertexAttributes() const {
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return (options.entryPointStage == spv::ExecutionModelVertex ||
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options.entryPointStage == spv::ExecutionModelTessellationControl ||
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options.entryPointStage == spv::ExecutionModelTessellationEvaluation);
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}
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// Check them all in case inactive VA's duplicate locations used by active VA's.
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConversionConfiguration::isVertexAttributeLocationUsed(uint32_t location) const {
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for (auto& va : vertexAttributes) {
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if ((va.vertexAttribute.location == location) && va.isUsedByShader) { return true; }
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}
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return false;
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}
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// Check them all in case inactive VA's duplicate buffers used by active VA's.
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConversionConfiguration::isVertexBufferUsed(uint32_t mslBuffer) const {
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for (auto& va : vertexAttributes) {
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if ((va.vertexAttribute.msl_buffer == mslBuffer) && va.isUsedByShader) { return true; }
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}
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return false;
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}
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MVK_PUBLIC_SYMBOL void SPIRVToMSLConversionConfiguration::markAllAttributesAndResourcesUsed() {
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if (stageSupportsVertexAttributes()) {
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for (auto& va : vertexAttributes) { va.isUsedByShader = true; }
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}
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for (auto& rb : resourceBindings) { rb.isUsedByShader = true; }
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}
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConversionConfiguration::matches(const SPIRVToMSLConversionConfiguration& other) const {
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if ( !options.matches(other.options) ) { return false; }
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if (stageSupportsVertexAttributes()) {
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for (const auto& va : vertexAttributes) {
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if (va.isUsedByShader && !containsMatching(other.vertexAttributes, va)) { return false; }
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}
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}
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for (const auto& rb : resourceBindings) {
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if (rb.isUsedByShader && !containsMatching(other.resourceBindings, rb)) { return false; }
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}
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return true;
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}
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MVK_PUBLIC_SYMBOL void SPIRVToMSLConversionConfiguration::alignWith(const SPIRVToMSLConversionConfiguration& srcContext) {
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if (stageSupportsVertexAttributes()) {
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for (auto& va : vertexAttributes) {
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va.isUsedByShader = false;
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for (auto& srcVA : srcContext.vertexAttributes) {
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if (va.matches(srcVA)) { va.isUsedByShader = srcVA.isUsedByShader; }
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}
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}
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}
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for (auto& rb : resourceBindings) {
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rb.isUsedByShader = false;
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for (auto& srcRB : srcContext.resourceBindings) {
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if (rb.matches(srcRB)) { rb.isUsedByShader = srcRB.isUsedByShader; }
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}
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}
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}
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#pragma mark -
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#pragma mark SPIRVToMSLConverter
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MVK_PUBLIC_SYMBOL void SPIRVToMSLConverter::setSPIRV(const uint32_t* spirvCode, size_t length) {
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_spirv.clear(); // Clear for reuse
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_spirv.reserve(length);
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for (size_t i = 0; i < length; i++) {
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_spirv.push_back(spirvCode[i]);
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}
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}
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MVK_PUBLIC_SYMBOL bool SPIRVToMSLConverter::convert(SPIRVToMSLConversionConfiguration& context,
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bool shouldLogSPIRV,
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bool shouldLogMSL,
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bool shouldLogGLSL) {
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// Uncomment to write SPIR-V to file as a debugging aid
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// ofstream spvFile("spirv.spv", ios::binary);
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// spvFile.write((char*)_spirv.data(), _spirv.size() << 2);
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// spvFile.close();
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_wasConverted = true;
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_resultLog.clear();
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_msl.clear();
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_shaderConversionResults.reset();
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if (shouldLogSPIRV) { logSPIRV("Converting"); }
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SPIRV_CROSS_NAMESPACE::CompilerMSL* pMSLCompiler = nullptr;
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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try {
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#endif
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pMSLCompiler = new SPIRV_CROSS_NAMESPACE::CompilerMSL(_spirv);
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if (context.options.hasEntryPoint()) {
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pMSLCompiler->set_entry_point(context.options.entryPointName, context.options.entryPointStage);
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}
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// Set up tessellation parameters if needed.
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if (context.options.entryPointStage == spv::ExecutionModelTessellationControl ||
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context.options.entryPointStage == spv::ExecutionModelTessellationEvaluation) {
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if (context.options.tessPatchKind != spv::ExecutionModeMax) {
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pMSLCompiler->set_execution_mode(context.options.tessPatchKind);
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}
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if (context.options.numTessControlPoints != 0) {
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pMSLCompiler->set_execution_mode(spv::ExecutionModeOutputVertices, context.options.numTessControlPoints);
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}
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}
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// Establish the MSL options for the compiler
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// This needs to be done in two steps...for CompilerMSL and its superclass.
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pMSLCompiler->set_msl_options(context.options.mslOptions);
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auto scOpts = pMSLCompiler->get_common_options();
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scOpts.vertex.flip_vert_y = context.options.shouldFlipVertexY;
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pMSLCompiler->set_common_options(scOpts);
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// Add vertex attributes
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if (context.stageSupportsVertexAttributes()) {
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for (auto& va : context.vertexAttributes) {
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pMSLCompiler->add_msl_vertex_attribute(va.vertexAttribute);
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}
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}
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// Add resource bindings and hardcoded constexpr samplers
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for (auto& rb : context.resourceBindings) {
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auto& rbb = rb.resourceBinding;
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pMSLCompiler->add_msl_resource_binding(rbb);
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if (rb.requiresConstExprSampler) {
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pMSLCompiler->remap_constexpr_sampler_by_binding(rbb.desc_set, rbb.binding, rb.constExprSampler);
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}
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}
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_msl = pMSLCompiler->compile();
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if (shouldLogMSL) { logSource(_msl, "MSL", "Converted"); }
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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} catch (SPIRV_CROSS_NAMESPACE::CompilerError& ex) {
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string errMsg("MSL conversion error: ");
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errMsg += ex.what();
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logError(errMsg.data());
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if (shouldLogMSL && pMSLCompiler) {
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_msl = pMSLCompiler->get_partial_source();
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logSource(_msl, "MSL", "Partially converted");
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}
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}
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#endif
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// Populate the shader conversion results with info from the compilation run,
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// and mark which vertex attributes and resource bindings are used by the shader
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populateEntryPoint(pMSLCompiler, context.options);
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_shaderConversionResults.isRasterizationDisabled = pMSLCompiler && pMSLCompiler->get_is_rasterization_disabled();
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_shaderConversionResults.needsSwizzleBuffer = pMSLCompiler && pMSLCompiler->needs_swizzle_buffer();
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_shaderConversionResults.needsOutputBuffer = pMSLCompiler && pMSLCompiler->needs_output_buffer();
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_shaderConversionResults.needsPatchOutputBuffer = pMSLCompiler && pMSLCompiler->needs_patch_output_buffer();
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_shaderConversionResults.needsBufferSizeBuffer = pMSLCompiler && pMSLCompiler->needs_buffer_size_buffer();
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_shaderConversionResults.needsInputThreadgroupMem = pMSLCompiler && pMSLCompiler->needs_input_threadgroup_mem();
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if (context.stageSupportsVertexAttributes()) {
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for (auto& ctxVA : context.vertexAttributes) {
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ctxVA.isUsedByShader = pMSLCompiler->is_msl_vertex_attribute_used(ctxVA.vertexAttribute.location);
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}
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}
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for (auto& ctxRB : context.resourceBindings) {
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ctxRB.isUsedByShader = pMSLCompiler->is_msl_resource_binding_used(ctxRB.resourceBinding.stage,
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ctxRB.resourceBinding.desc_set,
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ctxRB.resourceBinding.binding);
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}
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delete pMSLCompiler;
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// To check GLSL conversion
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if (shouldLogGLSL) {
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SPIRV_CROSS_NAMESPACE::CompilerGLSL* pGLSLCompiler = nullptr;
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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try {
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#endif
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pGLSLCompiler = new SPIRV_CROSS_NAMESPACE::CompilerGLSL(_spirv);
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auto options = pGLSLCompiler->get_common_options();
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options.vulkan_semantics = true;
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options.separate_shader_objects = true;
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pGLSLCompiler->set_common_options(options);
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string glsl = pGLSLCompiler->compile();
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logSource(glsl, "GLSL", "Estimated original");
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#ifndef SPIRV_CROSS_EXCEPTIONS_TO_ASSERTIONS
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} catch (SPIRV_CROSS_NAMESPACE::CompilerError& ex) {
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string errMsg("Original GLSL extraction error: ");
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errMsg += ex.what();
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logMsg(errMsg.data());
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if (pGLSLCompiler) {
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string glsl = pGLSLCompiler->get_partial_source();
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logSource(glsl, "GLSL", "Partially converted");
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}
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}
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#endif
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delete pGLSLCompiler;
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}
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return _wasConverted;
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}
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// Appends the message text to the result log.
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void SPIRVToMSLConverter::logMsg(const char* logMsg) {
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string trimMsg = trim(logMsg);
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if ( !trimMsg.empty() ) {
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_resultLog += trimMsg;
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_resultLog += "\n\n";
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}
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}
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// Appends the error text to the result log, sets the wasConverted property to false, and returns it.
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bool SPIRVToMSLConverter::logError(const char* errMsg) {
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logMsg(errMsg);
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_wasConverted = false;
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return _wasConverted;
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}
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// Appends the SPIR-V to the result log, indicating whether it is being converted or was converted.
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void SPIRVToMSLConverter::logSPIRV(const char* opDesc) {
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string spvLog;
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mvk::logSPIRV(_spirv, spvLog);
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_resultLog += opDesc;
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_resultLog += " SPIR-V:\n";
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_resultLog += spvLog;
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_resultLog += "\nEnd SPIR-V\n\n";
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// Uncomment one or both of the following lines to get additional debugging and tracability capabilities.
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// The SPIR-V can be written in binary form to a file, and/or logged in human readable form to the console.
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// These can be helpful if errors occur during conversion of SPIR-V to MSL.
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// writeSPIRVToFile("spvout.spv");
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// printf("\n%s\n", getResultLog().c_str());
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}
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// Writes the SPIR-V code to a file. This can be useful for debugging
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// when the SPRIR-V did not originally come from a known file
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void SPIRVToMSLConverter::writeSPIRVToFile(string spvFilepath) {
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vector<char> fileContents;
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spirvToBytes(_spirv, fileContents);
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string errMsg;
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if (writeFile(spvFilepath, fileContents, errMsg)) {
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_resultLog += "Saved SPIR-V to file: " + absolutePath(spvFilepath) + "\n\n";
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} else {
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_resultLog += "Could not write SPIR-V file. " + errMsg + "\n\n";
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}
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}
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// Validates that the SPIR-V code will disassemble during logging.
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bool SPIRVToMSLConverter::validateSPIRV() {
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if (_spirv.size() < 5) { return false; }
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if (_spirv[0] != spv::MagicNumber) { return false; }
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if (_spirv[4] != 0) { return false; }
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return true;
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}
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// Appends the source to the result log, prepending with the operation.
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void SPIRVToMSLConverter::logSource(string& src, const char* srcLang, const char* opDesc) {
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_resultLog += opDesc;
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_resultLog += " ";
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_resultLog += srcLang;
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_resultLog += ":\n";
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_resultLog += src;
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_resultLog += "\nEnd ";
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_resultLog += srcLang;
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_resultLog += "\n\n";
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}
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void SPIRVToMSLConverter::populateWorkgroupDimension(SPIRVWorkgroupSizeDimension& wgDim,
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uint32_t size,
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SPIRV_CROSS_NAMESPACE::SpecializationConstant& spvSpecConst) {
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wgDim.size = max(size, 1u);
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wgDim.isSpecialized = (spvSpecConst.id != 0);
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wgDim.specializationID = spvSpecConst.constant_id;
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}
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// Populates the entry point with info extracted from the SPRI-V compiler.
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void SPIRVToMSLConverter::populateEntryPoint(SPIRV_CROSS_NAMESPACE::Compiler* pCompiler,
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SPIRVToMSLConversionOptions& options) {
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if ( !pCompiler ) { return; }
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SPIRV_CROSS_NAMESPACE::SPIREntryPoint spvEP;
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if (options.hasEntryPoint()) {
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spvEP = pCompiler->get_entry_point(options.entryPointName, options.entryPointStage);
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} else {
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const auto& entryPoints = pCompiler->get_entry_points_and_stages();
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if ( !entryPoints.empty() ) {
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auto& ep = entryPoints[0];
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spvEP = pCompiler->get_entry_point(ep.name, ep.execution_model);
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}
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}
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auto& ep = _shaderConversionResults.entryPoint;
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ep.mtlFunctionName = spvEP.name;
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SPIRV_CROSS_NAMESPACE::SpecializationConstant widthSC, heightSC, depthSC;
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pCompiler->get_work_group_size_specialization_constants(widthSC, heightSC, depthSC);
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auto& wgSize = ep.workgroupSize;
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populateWorkgroupDimension(wgSize.width, spvEP.workgroup_size.x, widthSC);
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populateWorkgroupDimension(wgSize.height, spvEP.workgroup_size.y, heightSC);
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populateWorkgroupDimension(wgSize.depth, spvEP.workgroup_size.z, depthSC);
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}
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