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153 lines (137 loc) · 6.38 KB
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Copy pathGLProgram.cpp
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153 lines (137 loc) · 6.38 KB
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#include "GLProgram.hpp"
#include <iostream>
#include <vector>
GLShader::GLShader( GLenum type, std::string const &source ) {
shader = glCreateShader(type);
{
GLchar const *str = source.c_str();
GLint length = GLint(source.size());
glShaderSource(shader, 1, &str, &length);
}
glCompileShader(shader);
GLint compile_status = GL_FALSE;
glGetShaderiv(shader, GL_COMPILE_STATUS, &compile_status);
if (compile_status != GL_TRUE) {
std::cerr << "Failed to compile shader." << std::endl;
GLint info_log_length = 0;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &info_log_length);
std::vector< GLchar > info_log(info_log_length, 0);
GLsizei length = 0;
glGetShaderInfoLog(shader, GLsizei(info_log.size()), &length, &info_log[0]);
std::cerr << "Info log: " << std::string(info_log.begin(), info_log.begin() + length);
glDeleteShader(shader);
throw std::runtime_error("Failed to compile shader.");
}
}
GLProgram::GLProgram( std::initializer_list< GLShader const * > shaders ) {
program = glCreateProgram();
for (auto s : shaders) {
glAttachShader(program, s->shader);
}
glLinkProgram(program);
GLint link_status = GL_FALSE;
glGetProgramiv(program, GL_LINK_STATUS, &link_status);
if (link_status != GL_TRUE) {
std::cerr << "Failed to link shader program." << std::endl;
GLint info_log_length = 0;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &info_log_length);
std::vector< GLchar > info_log(info_log_length, 0);
GLsizei length = 0;
glGetProgramInfoLog(program, GLsizei(info_log.size()), &length, &info_log[0]);
std::cerr << "Info log: " << std::string(info_log.begin(), info_log.begin() + length);
throw std::runtime_error("Failed to link program");
}
}
void GLProgram::DEBUG_dump_info(std::string const &name_) {
std::cout << " ------ Shader Program '" << name_ << "' -----\n";
{
GLint active = 0;
glGetProgramiv(program, GL_ACTIVE_ATTRIBUTES, &active);
std::cout << " " << active << " active attributes:\n";
for (GLuint l = 0; l < (GLuint)active; ++l) {
GLchar name[100];
GLint size = 0;
GLenum type = 0;
glGetActiveAttrib(program, l, 100, NULL, &size, &type, name);
name[99] = '\0';
GLuint idx = glGetAttribLocation(program, name);
auto str = [](GLenum type) -> std::string {
#undef DO
#define DO( X ) if (type == GL_ ## X) return #X;
DO( FLOAT ) DO( FLOAT_VEC2 ) DO( FLOAT_VEC3 ) DO( FLOAT_VEC4 )
DO( FLOAT_MAT2 ) DO( FLOAT_MAT2x3 ) DO( FLOAT_MAT2x4 )
DO( FLOAT_MAT3x2 ) DO( FLOAT_MAT3 ) DO( FLOAT_MAT3x4 )
DO( FLOAT_MAT4x2 ) DO( FLOAT_MAT4x3 ) DO( FLOAT_MAT4 )
DO( INT ) DO( INT_VEC2 ) DO( INT_VEC3 ) DO( INT_VEC4 )
DO( UNSIGNED_INT ) DO( UNSIGNED_INT_VEC2 ) DO( UNSIGNED_INT_VEC3 ) DO( UNSIGNED_INT_VEC4 )
DO( DOUBLE ) DO( DOUBLE_VEC2 ) DO( DOUBLE_VEC3 ) DO( DOUBLE_VEC4 )
DO( DOUBLE_MAT2 ) DO( DOUBLE_MAT2x3 ) DO( DOUBLE_MAT2x4 )
DO( DOUBLE_MAT3x2 ) DO( DOUBLE_MAT3 ) DO( DOUBLE_MAT3x4 )
DO( DOUBLE_MAT4x2 ) DO( DOUBLE_MAT4x3 ) DO( DOUBLE_MAT4 )
#undef DO
return "[unknown type: " + std::to_string(type);
};
std::cout << " (" << idx << ") " << name << " [" << str(type) << " x " << size << "]\n";
}
}
{
GLint active = 0;
glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &active);
std::cout << " " << active << " active uniforms:\n";
for (GLuint l = 0; l < (GLuint)active; ++l) {
GLchar name[100];
GLint size = 0;
GLenum type = 0;
glGetActiveUniform(program, l, 100, NULL, &size, &type, name);
name[99] = '\0';
GLuint idx = glGetUniformLocation(program, name);
auto str = [](GLenum type) -> std::string {
#define DO( X ) if (type == GL_ ## X) return #X;
DO( FLOAT ) DO( FLOAT_VEC2 ) DO( FLOAT_VEC3 ) DO( FLOAT_VEC4 )
DO( DOUBLE ) DO( DOUBLE_VEC2 ) DO( DOUBLE_VEC3 ) DO( DOUBLE_VEC4 )
DO( INT ) DO( INT_VEC2 ) DO( INT_VEC3 ) DO( INT_VEC4 )
DO( UNSIGNED_INT ) DO( UNSIGNED_INT_VEC2 ) DO( UNSIGNED_INT_VEC3 ) DO( UNSIGNED_INT_VEC4 )
DO( BOOL ) DO( BOOL_VEC2 ) DO( BOOL_VEC3 ) DO( BOOL_VEC4 )
DO( FLOAT_MAT2 ) DO( FLOAT_MAT2x3 ) DO( FLOAT_MAT2x4 )
DO( FLOAT_MAT3x2 ) DO( FLOAT_MAT3 ) DO( FLOAT_MAT3x4 )
DO( FLOAT_MAT4x2 ) DO( FLOAT_MAT4x3 ) DO( FLOAT_MAT4 )
DO( DOUBLE_MAT2 ) DO( DOUBLE_MAT2x3 ) DO( DOUBLE_MAT2x4 )
DO( DOUBLE_MAT3x2 ) DO( DOUBLE_MAT3 ) DO( DOUBLE_MAT3x4 )
DO( DOUBLE_MAT4x2 ) DO( DOUBLE_MAT4x3 ) DO( DOUBLE_MAT4 )
DO( SAMPLER_1D ) DO( SAMPLER_2D ) DO( SAMPLER_3D ) DO( SAMPLER_CUBE )
DO( SAMPLER_1D_SHADOW ) DO( SAMPLER_2D_SHADOW )
DO( SAMPLER_1D_ARRAY ) DO( SAMPLER_2D_ARRAY )
DO( SAMPLER_1D_ARRAY_SHADOW ) DO( SAMPLER_2D_ARRAY_SHADOW )
DO( SAMPLER_2D_MULTISAMPLE ) DO( SAMPLER_2D_MULTISAMPLE_ARRAY )
DO( SAMPLER_CUBE_SHADOW )
DO( SAMPLER_BUFFER )
DO( SAMPLER_2D_RECT ) DO( SAMPLER_2D_RECT_SHADOW )
DO( INT_SAMPLER_1D ) DO( INT_SAMPLER_2D ) DO( INT_SAMPLER_3D ) DO( INT_SAMPLER_CUBE )
DO( INT_SAMPLER_1D_ARRAY ) DO( INT_SAMPLER_2D_ARRAY )
DO( INT_SAMPLER_2D_MULTISAMPLE ) DO( INT_SAMPLER_2D_MULTISAMPLE_ARRAY )
DO( INT_SAMPLER_BUFFER ) DO( INT_SAMPLER_2D_RECT )
DO( UNSIGNED_INT_SAMPLER_1D ) DO( UNSIGNED_INT_SAMPLER_2D ) DO( UNSIGNED_INT_SAMPLER_3D ) DO( UNSIGNED_INT_SAMPLER_CUBE )
DO( UNSIGNED_INT_SAMPLER_1D_ARRAY ) DO( UNSIGNED_INT_SAMPLER_2D_ARRAY )
DO( UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE ) DO( UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY )
DO( UNSIGNED_INT_SAMPLER_BUFFER ) DO( UNSIGNED_INT_SAMPLER_2D_RECT )
DO( IMAGE_1D ) DO( IMAGE_2D ) DO( IMAGE_3D )
DO( IMAGE_2D_RECT ) DO( IMAGE_CUBE ) DO( IMAGE_BUFFER )
DO( IMAGE_1D_ARRAY ) DO( IMAGE_2D_ARRAY )
DO( IMAGE_2D_MULTISAMPLE ) DO( IMAGE_2D_MULTISAMPLE_ARRAY )
DO( INT_IMAGE_1D ) DO( INT_IMAGE_2D ) DO( INT_IMAGE_3D )
DO( INT_IMAGE_2D_RECT ) DO( INT_IMAGE_CUBE ) DO( INT_IMAGE_BUFFER )
DO( INT_IMAGE_1D_ARRAY ) DO( INT_IMAGE_2D_ARRAY )
DO( INT_IMAGE_2D_MULTISAMPLE ) DO( INT_IMAGE_2D_MULTISAMPLE_ARRAY )
DO( UNSIGNED_INT_IMAGE_1D ) DO( UNSIGNED_INT_IMAGE_2D ) DO( UNSIGNED_INT_IMAGE_3D )
DO( UNSIGNED_INT_IMAGE_2D_RECT ) DO( UNSIGNED_INT_IMAGE_CUBE ) DO( UNSIGNED_INT_IMAGE_BUFFER )
DO( UNSIGNED_INT_IMAGE_1D_ARRAY ) DO( UNSIGNED_INT_IMAGE_2D_ARRAY )
DO( UNSIGNED_INT_IMAGE_2D_MULTISAMPLE ) DO( UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY )
DO( UNSIGNED_INT_ATOMIC_COUNTER )
#undef DO
return "[unknown type: " + std::to_string(type);
};
std::cout << " (" << idx << ") " << name << " [" << str(type) << " x " << size << "]\n";
}
}
std::cout << " -------------------------------------\n";
}