Lines Matching defs:trans
2443 unsigned int step, i, val, trans = 256/*ignore*/, back_alpha = 0;
2457 trans = png_ptr->trans_color.gray;
2476 if (i != trans)
3064 png_const_bytep trans = num_trans > 0 ? png_ptr->trans_alpha : NULL;
3066 int do_background = trans != NULL &&
3071 if (trans == NULL)
3085 if (do_background != 0 && i < num_trans && trans[i] < 255)
3087 if (trans[i] == 0)
3098 P_FILE, trans[i], back_r, output_encoding),
3100 P_FILE, trans[i], back_g, output_encoding),
3102 P_FILE, trans[i], back_b, output_encoding),
3103 output_encoding == P_LINEAR ? trans[i] * 257U :
3104 trans[i],
3112 i < num_trans ? trans[i] : 255U, P_FILE/*8-bit*/);