Graphics Reference
In-Depth Information
(continued)
bytesPerPixel = 2;
break;
case GL_RED:
case GL_RED_INTEGER:
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
bytesPerPixel = 1;
break;
default:
// Undetected format/error
break;
}
break;
case GL_FLOAT:
case GL_UNSIGNED_INT:
case GL_INT:
switch ( readFormat )
{
case GL_RGBA:
case GL_RGBA_INTEGER:
bytesPerPixel = 16;
break;
case GL_RGB:
case GL_RGB_INTEGER:
bytesPerPixel = 12;
break;
case GL_RG:
case GL_RG_INTEGER:
bytesPerPixel = 8;
break;
case GL_RED:
case GL_RED_INTEGER:
case GL_DEPTH_COMPONENT:
bytesPerPixel = 4;
break;
default:
// Undetected format/error
break;
}
break;
case GL_HALF_FLOAT:
case GL_UNSIGNED_SHORT:
