Subversion Repositories gelsvn

#include <iostream>
#include <fstream>
#include <string>
#include <GL/glew.h>
#include <GLGraphics/gel_glu.h>
using namespace std;

void print_glsl_program_log(GLuint obj)
{
        GLint infologLength = 0;
        glGetProgramiv(obj, GL_INFO_LOG_LENGTH, &infologLength);
        if (infologLength > 0)
        {
                char* infoLog = new char[infologLength];
                glGetProgramInfoLog(obj, infologLength, 0, infoLog);
                cout << "InfoLog:\n%s\n\n" << infoLog << endl;
                delete infoLog;
        }
}

const std::string read_glsl_source(const std::string& path, const std::string& file)
{
        string fullpath = path + "/" + file;
        ifstream is(fullpath.c_str(), ios::binary);
        string str, contents;
        while(getline(is,str)) 
        {
                contents += str;
                contents += "\n";
        }
        return contents;
}

GLuint create_glsl_shader(GLuint stype, const std::string& src)
{
        GLuint S = glCreateShader(stype);
        const GLchar* src_cstr = src.c_str();
        glShaderSource(S, 1, &src_cstr, 0);
        glCompileShader(S);
        
        GLint status;
        glGetShaderiv(S,GL_COMPILE_STATUS, &status);
        if (status == 0) 
        {
                GLint infologLength = 0;
                glGetShaderiv(S, GL_INFO_LOG_LENGTH, &infologLength);
                if (infologLength > 0)
                {
                        char* infoLog = new char[infologLength];
                        glGetShaderInfoLog(S, infologLength, 0, infoLog);
                        cout << "InfoLog: " << infoLog << endl;
                        delete infoLog;
                }
                return 0;
        }
        return S;
}

GLuint create_glsl_shader(GLuint stype, const std::string& path, const std::string& file)
{
        string str = read_glsl_source(path, file);
        if(str != "")
                return create_glsl_shader(stype, str);
        return 0;
}