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Lines Matching refs:rmask

425    unsigned long rmask, gmask, bmask;
431    rmask = GET_REDMASK(v);
432    while ((rmask & 1)==0) {
434       rmask = rmask >> 1;
463       GLint rBits = _mesa_bitcount(rmask);
470       for (i=0; i<=rmask; i++)
471          v->PixelToR[i] = (unsigned char) ((i * 255) / rmask);