/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ /*! * Copyright (c) 2017 by Contributors * \file codegen_opengl.h * \brief Generate OpenGL device code. */ #ifndef TVM_CODEGEN_CODEGEN_OPENGL_H_ #define TVM_CODEGEN_CODEGEN_OPENGL_H_ #include <tvm/codegen.h> #include <tvm/packed_func_ext.h> #include <string> #include <unordered_set> #include <unordered_map> #include "codegen_c.h" #include "../runtime/opengl/opengl_module.h" namespace tvm { namespace codegen { class CodeGenOpenGL final : public CodeGenC { public: CodeGenOpenGL(); void AddFunction(LoweredFunc f); std::unordered_map<std::string, runtime::OpenGLShader> Finish(); void InitFuncState(LoweredFunc f) final; void BindThreadIndex(const IterVar& iv) final; void VisitStmt_(const Store* op) final; std::string TexelFetch(const Variable* buffer, Expr index); std::string GetBufferRef(Type t, const Variable* buffer, Expr index) final; void PrintType(Type t, std::ostream& os) final; // NOLINT(*) // Codegen for immediate values void VisitExpr_(const IntImm* op, std::ostream& os) final; // NOLINT(*) void VisitExpr_(const UIntImm* op, std::ostream& os) final; // NOLINT(*) void VisitExpr_(const FloatImm* op, std::ostream& os) final; // NOLINT(*) void VisitExpr_(const StringImm* op, std::ostream& os) final; // NOLINT(*) // Match glsl_texture_store Call. void VisitStmt_(const Evaluate* op) final; // NOLINT(*) private: const Variable* output_{nullptr}; std::unordered_set<const Variable*> inputs_; const Variable* output_iter_var_{nullptr}; std::unordered_map<std::string, runtime::OpenGLShader> shaders_; std::string thread_extent_var_; }; } // namespace codegen } // namespace tvm #endif // TVM_CODEGEN_CODEGEN_OPENGL_H_