Lines Matching refs:thr1
410 int thr1y, thr2y, off1, off2, thr1, thr2, a1, a2; in jpegd_setup_pp() local
414 thr1 = (219 * (contrast + 128)) / 512; in jpegd_setup_pp()
415 thr1y = (219 - 2 * thr1) / 2; in jpegd_setup_pp()
416 thr2 = 219 - thr1; in jpegd_setup_pp()
419 tmp1 = (thr1y * 256) / thr1; in jpegd_setup_pp()
420 tmp2 = ((thr2y - thr1y) * 256) / (thr2 - thr1); in jpegd_setup_pp()
421 off1 = ((thr1y - ((tmp2 * thr1) / 256)) * a) / 256; in jpegd_setup_pp()
426 a1 = (tmp2 + off2) / thr1; in jpegd_setup_pp()
427 a2 = a1 + (256 * (off2 - 1)) / (thr2 - thr1); in jpegd_setup_pp()
430 thr1 = (64 * (contrast + 128)) / 128; in jpegd_setup_pp()
431 thr1y = 128 - thr1; in jpegd_setup_pp()
432 thr2 = 256 - thr1; in jpegd_setup_pp()
434 a1 = (thr1y * 256) / thr1; in jpegd_setup_pp()
435 a2 = ((thr2y - thr1y) * 256) / (thr2 - thr1); in jpegd_setup_pp()
436 off1 = thr1y - (a2 * thr1) / 256; in jpegd_setup_pp()
450 if (thr1 > 255) in jpegd_setup_pp()
451 thr1 = 255; in jpegd_setup_pp()
452 else if (thr1 < 0) in jpegd_setup_pp()
453 thr1 = 0; in jpegd_setup_pp()
470 reg->reg31.sw_contrast_thr1 = thr1; in jpegd_setup_pp()