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//
// Copyright 2016 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// GlslangWrapperVk: Wrapper for Vulkan's glslang compiler.
//
#include "libANGLE/renderer/vulkan/GlslangWrapperVk.h"
#include "libANGLE/renderer/vulkan/ContextVk.h"
#include "libANGLE/renderer/vulkan/vk_cache_utils.h"
namespace rx
{
namespace
{
angle::Result ErrorHandler(vk::Context *context, GlslangError)
{
ANGLE_VK_CHECK(context, false, VK_ERROR_INVALID_SHADER_NV);
return angle::Result::Stop;
}
} // namespace
// static
GlslangSourceOptions GlslangWrapperVk::CreateSourceOptions(const angle::FeaturesVk &features)
{
GlslangSourceOptions options;
options.useOldRewriteStructSamplers = features.forceOldRewriteStructSamplers.enabled;
options.supportsTransformFeedbackExtension =
features.supportsTransformFeedbackExtension.enabled;
options.emulateTransformFeedback = features.emulateTransformFeedback.enabled;
options.emulateBresenhamLines = features.basicGLLineRasterization.enabled;
return options;
}
// static
void GlslangWrapperVk::ResetGlslangProgramInterfaceInfo(
GlslangProgramInterfaceInfo *glslangProgramInterfaceInfo)
{
glslangProgramInterfaceInfo->uniformsAndXfbDescriptorSetIndex =
kUniformsAndXfbDescriptorSetIndex;
glslangProgramInterfaceInfo->currentUniformBindingIndex = 0;
glslangProgramInterfaceInfo->textureDescriptorSetIndex = kTextureDescriptorSetIndex;
glslangProgramInterfaceInfo->currentTextureBindingIndex = 0;
glslangProgramInterfaceInfo->shaderResourceDescriptorSetIndex =
kShaderResourceDescriptorSetIndex;
glslangProgramInterfaceInfo->currentShaderResourceBindingIndex = 0;
glslangProgramInterfaceInfo->driverUniformsDescriptorSetIndex =
kDriverUniformsDescriptorSetIndex;
glslangProgramInterfaceInfo->locationsUsedForXfbExtension = 0;
}
// static
void GlslangWrapperVk::GetShaderSource(const angle::FeaturesVk &features,
const gl::ProgramState &programState,
const gl::ProgramLinkedResources &resources,
GlslangProgramInterfaceInfo *programInterfaceInfo,
gl::ShaderMap<std::string> *shaderSourcesOut,
ShaderMapInterfaceVariableInfoMap *variableInfoMapOut)
{
GlslangSourceOptions options = CreateSourceOptions(features);
GlslangGetShaderSource(options, programState, resources, programInterfaceInfo, shaderSourcesOut,
variableInfoMapOut);
}
// static
angle::Result GlslangWrapperVk::GetShaderCode(
vk::Context *context,
const gl::ShaderBitSet &linkedShaderStages,
const gl::Caps &glCaps,
const gl::ShaderMap<std::string> &shaderSources,
const ShaderMapInterfaceVariableInfoMap &variableInfoMap,
gl::ShaderMap<std::vector<uint32_t>> *shaderCodeOut)
{
return GlslangGetShaderSpirvCode(
[context](GlslangError error) { return ErrorHandler(context, error); }, linkedShaderStages,
glCaps, shaderSources, variableInfoMap, shaderCodeOut);
}
// static
angle::Result GlslangWrapperVk::TransformSpirV(
vk::Context *context,
const gl::ShaderType shaderType,
bool removeEarlyFragmentTestsOptimization,
const ShaderInterfaceVariableInfoMap &variableInfoMap,
const SpirvBlob &initialSpirvBlob,
SpirvBlob *shaderCodeOut)
{
return GlslangTransformSpirvCode(
[context](GlslangError error) { return ErrorHandler(context, error); }, shaderType,
removeEarlyFragmentTestsOptimization, variableInfoMap, initialSpirvBlob, shaderCodeOut);
}
} // namespace rx
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