Lines Matching defs:Cb
177 TIFFYCbCrtoRGB(TIFFYCbCrToRGB *ycbcr, uint32 Y, int32 Cb, int32 Cr,
181 Y = CLAMP(Y, 0, 255), Cb = CLAMP(Cb, 0, 255), Cr = CLAMP(Cr, 0, 255);
185 + (int)((ycbcr->Cb_g_tab[Cb] + ycbcr->Cr_g_tab[Cr]) >> SHIFT)];
186 *b = ycbcr->clamptab[ycbcr->Y_tab[Y] + ycbcr->Cb_b_tab[Cb]];
194 * B = Y + Cb*(2 - 2*LumaBlue)
196 * - LumaBlue*Cb*(2-2*LumaBlue)/LumaGreen
202 * pre-calculating possible values indexed by Cb and Cr (this code
240 * Cb and Cr values are in the range -128..127 (actually
248 int32 Cb = (int32)Code2V(x, refBlackWhite[2] - 128.0F,
252 ycbcr->Cb_b_tab[i] = (int32)((D3*Cb + ONE_HALF)>>SHIFT);
254 ycbcr->Cb_g_tab[i] = D4*Cb + ONE_HALF;