1 // Copyright 2018 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_ 16 #define THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_ 17 18 #include "absl/types/optional.h" 19 #include "tools/render/sdl_util.h" 20 21 namespace quic_trace { 22 namespace render { 23 24 // A utility class that wraps a GlProgram and all GlShader objects in it. This 25 // class also does some preprocessing on shader source: it adds the #version 26 // header and the shared definition of uniform buffer and windowToGl() 27 // subroutine. 28 class Shader : public GlProgram { 29 public: 30 Shader(const char* vertex_code, const char* fragment_code); 31 Shader(const char* vertex_code, 32 const char* geometry_code, 33 const char* fragment_code); 34 35 private: 36 GlShader vertex_shader_; 37 GlShader fragment_shader_; 38 absl::optional<GlShader> geometry_shader_; 39 }; 40 41 } // namespace render 42 } // namespace quic_trace 43 44 #endif // THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_ 45