diff options
Diffstat (limited to 'util/ogl_renderer/c++/program.hpp')
| -rw-r--r-- | util/ogl_renderer/c++/program.hpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/util/ogl_renderer/c++/program.hpp b/util/ogl_renderer/c++/program.hpp new file mode 100644 index 0000000..acf3016 --- /dev/null +++ b/util/ogl_renderer/c++/program.hpp @@ -0,0 +1,65 @@ +#pragma once + +#include "common.hpp" + +namespace kel { +namespace lbm { +GLuint create_ogl_program(const char * vertex_data,const char * fragment_data){ + // Create the shaders + GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER); + GLuint FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER); + + GLint Result = GL_FALSE; + int InfoLogLength; + + // Compile Vertex Shader + glShaderSource(VertexShaderID, 1, &vertex_data, NULL); + glCompileShader(VertexShaderID); + + // Check Vertex Shader + glGetShaderiv(VertexShaderID, GL_COMPILE_STATUS, &Result); + glGetShaderiv(VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength); + if ( InfoLogLength > 0 ){ + std::vector<char> VertexShaderErrorMessage(InfoLogLength+1); + glGetShaderInfoLog(VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]); + printf("%s\n", &VertexShaderErrorMessage[0]); + } + + // Compile Fragment Shader + glShaderSource(FragmentShaderID, 1, &fragment_data , NULL); + glCompileShader(FragmentShaderID); + + // Check Fragment Shader + glGetShaderiv(FragmentShaderID, GL_COMPILE_STATUS, &Result); + glGetShaderiv(FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength); + if ( InfoLogLength > 0 ){ + std::vector<char> FragmentShaderErrorMessage(InfoLogLength+1); + glGetShaderInfoLog(FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[0]); + printf("%s\n", &FragmentShaderErrorMessage[0]); + } + + // Link the program + GLuint ProgramID = glCreateProgram(); + glAttachShader(ProgramID, VertexShaderID); + glAttachShader(ProgramID, FragmentShaderID); + glLinkProgram(ProgramID); + + // Check the program + glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result); + glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength); + if ( InfoLogLength > 0 ){ + std::vector<char> ProgramErrorMessage(InfoLogLength+1); + glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[0]); + printf("%s\n", &ProgramErrorMessage[0]); + } + + glDetachShader(ProgramID, VertexShaderID); + glDetachShader(ProgramID, FragmentShaderID); + + glDeleteShader(VertexShaderID); + glDeleteShader(FragmentShaderID); + + return ProgramID; +} +} +} |
