Lines Matching defs:channel
885 * fully transparent palette entry to a full alpha channel--perhaps instead
1189 /* Invert the alpha channel (in tRNS) unless the pixels are
1397 /* Stripping the alpha channel happens immediately after the 'expand'
1549 * allows pre-multiplication of the alpha channel to be implemented as
2107 /* If adding a true alpha channel not just filler */
2348 int channel = 0;
2352 int b = *bp >> shift[channel];
2353 if (++channel >= channels)
2354 channel = 0;
2366 int channel = 0;
2372 value >>= shift[channel];
2373 if (++channel >= channels)
2374 channel = 0;
2581 /* This inverts the alpha channel in RGBA */
2602 /* This inverts the alpha channel in RRGGBBAA */
2633 /* This inverts the alpha channel in GA */
2648 /* This inverts the alpha channel in GGAA */
2671 /* Add filler channel if we have RGB color */
3937 /* Gamma correct the image, avoiding the alpha channel. Make sure
4140 /* Encode the alpha channel to the output gamma (the input channel is always
4141 * linear.) Called only with color types that have an alpha channel. Needs the
4161 /* The alpha channel is the last component: */
4180 /* The alpha channel is the last component: */
4380 * expanded transparency value is supplied, an alpha channel is built.
4888 * do (if there is an alpha channel or transparency.)