void rgb15tobgr15(const uint8_t *src, uint8_t *dst, unsigned int src_size) { unsigned i; unsigned num_pixels = src_size >> 1; for(i=0; i<num_pixels; i++) { unsigned b,g,r; register uint16_t rgb; rgb = src[2*i]; r = rgb&0x1F; g = (rgb&0x3E0)>>5; b = (rgb&0x7C00)>>10; dst[2*i] = (b&0x1F) | ((g&0x1F)<<5) | ((r&0x1F)<<10); } }