| // |
| // 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. |
| // |
| // OutputVulkanGLSL: |
| // Code that outputs shaders that fit GL_KHR_vulkan_glsl. |
| // The shaders are then fed into glslang to spit out SPIR-V (libANGLE-side). |
| // See: https://www.khronos.org/registry/vulkan/specs/misc/GL_KHR_vulkan_glsl.txt |
| // |
| |
| #include "compiler/translator/OutputGLSL.h" |
| |
| namespace sh |
| { |
| |
| class TOutputVulkanGLSL : public TOutputGLSL |
| { |
| public: |
| TOutputVulkanGLSL(TInfoSinkBase &objSink, |
| ShArrayIndexClampingStrategy clampingStrategy, |
| ShHashFunction64 hashFunction, |
| NameMap &nameMap, |
| TSymbolTable *symbolTable, |
| sh::GLenum shaderType, |
| int shaderVersion, |
| ShShaderOutput output, |
| ShCompileOptions compileOptions); |
| |
| void writeStructType(const TStructure *structure); |
| |
| uint32_t nextUnusedBinding() { return mNextUnusedBinding++; } |
| uint32_t nextUnusedInputLocation(uint32_t consumedCount) |
| { |
| uint32_t nextUnused = mNextUnusedInputLocation; |
| mNextUnusedInputLocation += consumedCount; |
| return nextUnused; |
| } |
| uint32_t nextUnusedOutputLocation(uint32_t consumedCount) |
| { |
| uint32_t nextUnused = mNextUnusedOutputLocation; |
| mNextUnusedOutputLocation += consumedCount; |
| return nextUnused; |
| } |
| |
| protected: |
| void writeLayoutQualifier(TIntermTyped *variable) override; |
| void writeVariableType(const TType &type, |
| const TSymbol *symbol, |
| bool isFunctionArgument) override; |
| |
| // Every resource that requires set & binding layout qualifiers is assigned set 0 and an |
| // arbitrary binding when outputting GLSL. Every input/output that requires a location |
| // layout qualifiers is assigned an arbitrary location as well. |
| // |
| // Glslang wrapper modifies set, binding and location decorations in SPIR-V directly. |
| uint32_t mNextUnusedBinding; |
| uint32_t mNextUnusedInputLocation; |
| uint32_t mNextUnusedOutputLocation; |
| }; |
| |
| } // namespace sh |