59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MEDIAPIPE_GPU_SHADER_UTIL_H_
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#define MEDIAPIPE_GPU_SHADER_UTIL_H_
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#include <string>
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#include <unordered_map>
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#include "mediapipe/gpu/gl_base.h"
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namespace mediapipe {
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// TODO: Remove the C-style helpers.
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// Compiles a GLSL shader, logs errors, returns the compile status
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// (GL_TRUE for success, GL_FALSE for failure).
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GLint GlhCompileShader(GLenum target, const GLchar* source, GLuint* shader,
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bool force_log_errors = false);
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// Links a GLSL program, logs errors, returns the link status
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// (GL_TRUE for success, GL_FALSE for failure).
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GLint GlhLinkProgram(GLuint program, bool force_log_errors = false);
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// Validates a GLSL program, logs errors, returns the validate status
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// (GL_TRUE for success, GL_FALSE for failure).
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GLint GlhValidateProgram(GLuint program);
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// Creates a GLSL program by compiling and linking the provided shaders.
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// Also obtains the locations of the requested attributes.
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// Return GL_TRUE for success, GL_FALSE for failure.
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GLint GlhCreateProgram(const GLchar* vert_src, const GLchar* frag_src,
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GLsizei attr_count, const GLchar* const* attr_names,
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const GLint* attr_locations, GLuint* program,
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bool force_log_errors = false);
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// Compiles a shader specified by shader_source. Returns true on success.
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bool CompileShader(GLenum shader_type, const std::string& shader_source,
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GLuint* shader);
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// Creates a shader program using the supplied vertex shader, fragment shader
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// and attributes and stores in program. Returns true on success.
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bool CreateShaderProgram(
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GLuint vertex_shader, GLuint fragment_shader,
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const std::unordered_map<GLuint, std::string>& attributes, GLuint* program);
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} // namespace mediapipe
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#endif // MEDIAPIPE_GPU_SHADER_UTIL_H_
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