Lines Matching refs:bloc
2812 png_byte bloc[4];
2821 bchannels = component_loc(bloc, formatb);
2824 for (i=0; i<4; ++i) if (bloc[i] < 4)
2825 btoa[bloc[i]] = aloc[i]; /* may be '4' for alpha */
2828 alpha_added = bloc[0]; /* location of alpha channel in image b */
