ptrdiff_t line_size, \
int h) \
{ \
- int i, a0, b0, a1, b1; \
pixel *block = (pixel *) _block; \
const pixel *pixels = (const pixel *) _pixels; \
- a0 = pixels[0]; \
- b0 = pixels[1] + 2; \
+ int i, a1, b1; \
+ int a0 = pixels[0]; \
+ int b0 = pixels[1] + 2; \
+ \
a0 += b0; \
b0 += pixels[2]; \
- \
line_size /= sizeof(pixel); \
pixels += line_size; \
for (i = 0; i < h; i += 2) { \