pixel
row = (union pixel *)(p + i * stride);
uint8_t pixel[4];
pixel[i] = (
r = pixel[0];
g = pixel[1];
b = pixel[2];
a = pixel[3];
uint8_t pixel[4];
pixel[i] = (
r = pixel[0];
g = pixel[1];
b = pixel[2];
a = pixel[3];
int pixel = 0;
pixel = i;
if (pixel != 0) {
if (pixel & 1)
if (pixel & 2)
if (pixel & 4)
if (pixel & 8)