/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <GLES2/gl2.h>

#include <sys/syslimits.h>

#include "shader.h"

GLuint LoadAndCompileShader(char* path, char* shadername, GLenum type)

    {

    char filename[PATH_MAX];

    int len = 0;

    GLuint shader = 0;

    GLint compiled = 0;

    char* shaderdata = NULL;

    FILE* file;

    strcpy(filename,path);

    strcat(filename,"\\");

    strcat(filename,shadername);

    file = fopen(filename,"rb");

    if (!file)

        {

        return 0;

        }

    fseek (file, 0, SEEK_END);

    len = ftell (file);

    fseek(file, 0, SEEK_SET);

    if (len<0)

        {

        fclose(file);

        return 0;

        }

    shaderdata = (char*)malloc(len+1);

    if (!shaderdata)

        {

        fclose(file);

        return 0;

        }

    fread(shaderdata, 1, len, file);

    fclose(file);

    shaderdata[len] = 0;

    shader = glCreateShader(type);

    glShaderSource(shader, 1, (const char**)&shaderdata,NULL);

    glCompileShader(shader);

    glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);    

    if (!compiled)

        {

        char infobuf[ 256 ];

        glGetShaderInfoLog( shader, 256, NULL, infobuf );

        glDeleteShader(shader);

        shader = 0;

        }

    free(shaderdata);

    return shader;

    }