Write Ogre GLTexture to ppm file via OpenGL

void OgreOculusRender::writeTextureToFile()
{
    //It's a C style function, yeah...

    char path[] = "debug.ppm";
    FILE* debugFile = fopen(path,"w");
    fprintf(debugFile,"P3\n");//PPM ASCII MAGIC NUMBER

    //W H size
    fprintf(debugFile, "%d %d\n" ,texSizeL.w, texSizeL.h);

    //Compute the biggest nomber an unsigned int cat represent on this computer :
    unsigned int  max = 0;
    max--;

    //MAX SUBPIXEL VALULE
    fprintf(debugFile, "%u\n", 255);

    size_t arraySize =  texSizeL.w*texSizeL.h;
    //Cast because C++ will not like affecting a void* on a int*
    unsigned int* rIntArray = static_cast<unsigned int*>(malloc(sizeof(unsigned int) * arraySize));
    unsigned int* gIntArray = static_cast<unsigned int*>(malloc(sizeof(unsigned int) * arraySize));
    unsigned int* bIntArray = static_cast<unsigned int*>(malloc(sizeof(unsigned int) * arraySize));

    GLuint tex = static_cast<Ogre::GLTexture*>(Ogre::GLTextureManager::getSingleton().getByName("RttTexL").get())->getGLID();

    glBindTexture(GL_TEXTURE_2D, tex);

    //I'm not searching to do this right, I just want to get the data in any format I can...
    glGetTexImage(GL_TEXTURE_2D,0, GL_RED,GL_UNSIGNED_INT, static_cast<GLvoid*>(rIntArray));
    glGetTexImage(GL_TEXTURE_2D,0, GL_GREEN, GL_UNSIGNED_INT, static_cast<GLvoid*>(gIntArray));
    glGetTexImage(GL_TEXTURE_2D,0, GL_BLUE, GL_UNSIGNED_INT, static_cast<GLvoid*>(bIntArray));

    //Convert to a 255 max value
    for(int i = 0; i < arraySize; i++)
    {
        rIntArray[i] =(int) (((float)rIntArray[i]/(float)max)*(float)255);
        gIntArray[i] =(int) (((float)gIntArray[i]/(float)max)*(float)255);
        bIntArray[i] =(int) (((float)bIntArray[i]/(float)max)*(float)255);
    }

    for(int i = 0; i < arraySize; i++)
    {
        fprintf(debugFile,"%u %u %u ",rIntArray[i], gIntArray[i], bIntArray[i]);
    }

    free(rIntArray);
    free(gIntArray);
    free(bIntArray);

    fclose(debugFile);
}