func GetTextureSubImage(texture uint32, level int32, xoffset int32, yoffset int32, zoffset int32, width int32, height int32, depth int32, format uint32, xtype uint32, bufSize int32, pixels unsafe.Pointer) {
	syscall.Syscall12(gpGetTextureSubImage, 12, uintptr(texture), uintptr(level), uintptr(xoffset), uintptr(yoffset), uintptr(zoffset), uintptr(width), uintptr(height), uintptr(depth), uintptr(format), uintptr(xtype), uintptr(bufSize), uintptr(pixels))
}
func GetTextureSubImage(texture uint32, level int32, xoffset int32, yoffset int32, zoffset int32, width int32, height int32, depth int32, format uint32, xtype uint32, bufSize int32, pixels unsafe.Pointer) {
	syscall.Syscall12(gpGetTextureSubImage, 12, uintptr(texture), uintptr(level), uintptr(xoffset), uintptr(yoffset), uintptr(zoffset), uintptr(width), uintptr(height), uintptr(depth), uintptr(format), uintptr(xtype), uintptr(bufSize), uintptr(pixels))
}
func GetTextureSubImage ( texture uint32 , level int32 , xoffset int32 , yoffset int32 , zoffset int32 , width int32 , height int32 , depth int32 , format uint32 , xtype uint32 , bufSize int32 , pixels unsafe . Pointer ) { syscall . Syscall12 ( gpGetTextureSubImage , 12 , uintptr ( texture ) , uintptr ( level ) , uintptr ( xoffset ) , uintptr ( yoffset ) , uintptr ( zoffset ) , uintptr ( width ) , uintptr ( height ) , uintptr ( depth ) , uintptr ( format ) , uintptr ( xtype ) , uintptr ( bufSize ) , uintptr ( pixels ) ) }
// retrieve a sub-region of a texture image from a texture     object
retrieve a sub - region of a texture image from a texture object