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// Copyright 2018 Google LLC
//
// Licensed 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
//
// https://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.
#ifndef THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_
#define THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_
#include "absl/types/optional.h"
#include "tools/render/sdl_util.h"
namespace quic_trace {
namespace render {
// A utility class that wraps a GlProgram and all GlShader objects in it. This
// class also does some preprocessing on shader source: it adds the #version
// header and the shared definition of uniform buffer and windowToGl()
// subroutine.
class Shader : public GlProgram {
public:
Shader(const char* vertex_code, const char* fragment_code);
Shader(const char* vertex_code,
const char* geometry_code,
const char* fragment_code);
private:
GlShader vertex_shader_;
GlShader fragment_shader_;
absl::optional<GlShader> geometry_shader_;
};
} // namespace render
} // namespace quic_trace
#endif // THIRD_PARTY_QUIC_TRACE_TOOLS_SHADER_H_