void rgb32tobgr24(const uint8_t *src, uint8_t *dst, unsigned int src_size)
void rgb32tobgr24(const uint8_t *src, uint8_t *dst, long src_size)
void rgb32tobgr24(const uint8_t *src, uint8_t *dst, unsigned int src_size){	unsigned i;	unsigned num_pixels = src_size >> 2;	for(i=0; i<num_pixels; i++)	{		dst[3*i + 0] = src[4*i + 2];		dst[3*i + 1] = src[4*i + 1];		dst[3*i + 2] = src[4*i + 0];	}}