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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef WEBGL_SHADER_VALIDATOR_H_
#define WEBGL_SHADER_VALIDATOR_H_
#include <memory>
#include <string>
#include <unordered_map>
#include "GLDefs.h"
#include "GLSLANG/ShaderLang.h"
#include "nsString.h"
namespace mozilla::webgl {
class ShaderValidatorResults final {
public:
std::string mInfoLog;
bool mValid = false;
std::string mObjectCode;
int mShaderVersion = 0;
int mVertexShaderNumViews = 0;
std::vector<sh::Attribute> mAttributes;
std::vector<sh::InterfaceBlock> mInterfaceBlocks;
std::vector<sh::OutputVariable> mOutputVariables;
std::vector<sh::Uniform> mUniforms;
std::vector<sh::Varying> mVaryings;
std::unordered_map<std::string, std::string> mNameMap;
int mMaxVaryingVectors = 0;
bool mNeeds_webgl_gl_VertexID_Offset = false;
bool CanLinkTo(const ShaderValidatorResults& vert,
nsCString* const out_log) const;
size_t SizeOfIncludingThis(MallocSizeOf) const;
};
class ShaderValidator final {
public:
const ShHandle mHandle;
private:
const ShCompileOptions mCompileOptions;
const int mMaxVaryingVectors;
public:
bool mIfNeeded_webgl_gl_VertexID_Offset = false;
static std::unique_ptr<ShaderValidator> Create(
GLenum shaderType, ShShaderSpec spec, ShShaderOutput outputLanguage,
const ShBuiltInResources& resources, ShCompileOptions compileOptions);
private:
ShaderValidator(ShHandle handle, ShCompileOptions compileOptions,
int maxVaryingVectors)
: mHandle(handle),
mCompileOptions(compileOptions),
mMaxVaryingVectors(maxVaryingVectors) {}
public:
~ShaderValidator();
std::unique_ptr<const ShaderValidatorResults> ValidateAndTranslate(
const char*) const;
};
} // namespace mozilla::webgl
#endif // WEBGL_SHADER_VALIDATOR_H_
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