Lines Matching defs:channel
43 * MAPPEDGRAY - 8 bits, 1 channel colomap
44 * PSEUDOCOLOR - 8 bits, 3 channel colormap
45 * TRUECOLOR - 24 bits, 3 channel colormap
48 * For now, we ignore any alpha channel in the image.
248 char channel;
260 RLE_CLR_BIT(source->header, RLE_ALPHA); /* don't read the alpha channel */
296 for (channel = 0; channel < source->header.ncolors; channel++) {
298 (colormap[GETJSAMPLE(rle_row[channel][col]) + 256 * channel] >> 8);