From 533abb2b643a0f8e1d41e0d570e08e3df5339f80 Mon Sep 17 00:00:00 2001 From: Joursoir Date: Tue, 23 Mar 2021 08:45:12 +0000 Subject: add shader subsystem --- src/graphics/Shader.cpp | 60 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/graphics/Shader.cpp (limited to 'src/graphics/Shader.cpp') diff --git a/src/graphics/Shader.cpp b/src/graphics/Shader.cpp new file mode 100644 index 0000000..35a451d --- /dev/null +++ b/src/graphics/Shader.cpp @@ -0,0 +1,60 @@ +#include + +#include "Shader.hpp" + +Shader::~Shader() +{ + if(shader_id) + glDeleteShader(shader_id); + if(error_log) + delete[] error_log; +} + +int Shader::Compile(const char *source, GLenum shaderType) +{ + GLint success; + + shader_id = glCreateShader(shaderType); + glShaderSource(shader_id, 1, &source, NULL); + glCompileShader(shader_id); + glGetShaderiv(shader_id, GL_COMPILE_STATUS, &success); + if(success == 0) { + error_log = new char[GL_INFO_LOG_LENGTH]; + glGetShaderInfoLog(shader_id, GL_INFO_LOG_LENGTH, NULL, error_log); + return 1; + } + return 0; +} + +//////////////////////////////////////////////////////////////////// + +ShaderManager::~ShaderManager() +{ + if(program_id) + glDeleteProgram(program_id); + if(error_log) + delete[] error_log; +} + +int ShaderManager::Link(Shader *arr, int nsize) +{ + GLint success; + int i; + + program_id = glCreateProgram(); + for(i = 0; i < nsize; i++) + glAttachShader(program_id, arr[i].GetID()); + glLinkProgram(program_id); + glGetProgramiv(program_id, GL_LINK_STATUS, &success); + if(success == 0) { + error_log = new char[GL_INFO_LOG_LENGTH]; + glGetProgramInfoLog(program_id, GL_INFO_LOG_LENGTH, NULL, error_log); + return 1; + } + return 0; +} + +void ShaderManager::Use() +{ + glUseProgram(program_id); +} -- cgit v1.2.3-18-g5258