788              png_ptr->interlaced && png_ptr->pass > 6) ||  in png_process_IDAT_data()
833       if (png_ptr->pass < 6)  in png_push_process_row()
840     switch (png_ptr->pass)  in png_push_process_row()
845             for (i = 0; i < 8 && png_ptr->pass == 0; i++)  in png_push_process_row()
850             if (png_ptr->pass == 2) /* pass 1 might be empty */  in png_push_process_row()
852                for (i = 0; i < 4 && png_ptr->pass == 2; i++)  in png_push_process_row()
858             if (png_ptr->pass == 4 && png_ptr->height <= 4)  in png_push_process_row()
860                for (i = 0; i < 2 && png_ptr->pass == 4; i++)  in png_push_process_row()
866             if (png_ptr->pass == 6 && png_ptr->height <= 4)  in png_push_process_row()
876             for (i = 0; i < 8 && png_ptr->pass == 1; i++)  in png_push_process_row()
881             if (png_ptr->pass == 2) /* skip top 4 generated rows */  in png_push_process_row()
883                for (i = 0; i < 4 && png_ptr->pass == 2; i++)  in png_push_process_row()
894             for (i = 0; i < 4 && png_ptr->pass == 2; i++)  in png_push_process_row()
899             for (i = 0; i < 4 && png_ptr->pass == 2; i++)  in png_push_process_row()
904             if (png_ptr->pass == 4) /* pass 3 might be empty */  in png_push_process_row()
906                for (i = 0; i < 2 && png_ptr->pass == 4; i++)  in png_push_process_row()
917             for (i = 0; i < 4 && png_ptr->pass == 3; i++)  in png_push_process_row()
922             if (png_ptr->pass == 4) /* skip top two generated rows */  in png_push_process_row()
924                for (i = 0; i < 2 && png_ptr->pass == 4; i++)  in png_push_process_row()
935             for (i = 0; i < 2 && png_ptr->pass == 4; i++)  in png_push_process_row()
940             for (i = 0; i < 2 && png_ptr->pass == 4; i++)  in png_push_process_row()
945             if (png_ptr->pass == 6) /* pass 5 might be empty */  in png_push_process_row()
955             for (i = 0; i < 2 && png_ptr->pass == 5; i++)  in png_push_process_row()
960             if (png_ptr->pass == 6) /* skip top generated row */  in png_push_process_row()
971             if (png_ptr->pass != 6)  in png_push_process_row()
1026          png_ptr->pass++;  in png_read_push_finish_row()
1027          if ((png_ptr->pass == 1 && png_ptr->width < 5) ||  in png_read_push_finish_row()
1028              (png_ptr->pass == 3 && png_ptr->width < 3) ||  in png_read_push_finish_row()
1029              (png_ptr->pass == 5 && png_ptr->width < 2))  in png_read_push_finish_row()
1030            png_ptr->pass++;  in png_read_push_finish_row()
1032          if (png_ptr->pass > 7)  in png_read_push_finish_row()
1033             png_ptr->pass--;  in png_read_push_finish_row()
1034          if (png_ptr->pass >= 7)  in png_read_push_finish_row()
1038             png_pass_inc[png_ptr->pass] - 1 -  in png_read_push_finish_row()
1039             png_pass_start[png_ptr->pass]) /  in png_read_push_finish_row()
1040             png_pass_inc[png_ptr->pass];  in png_read_push_finish_row()
1049             png_pass_yinc[png_ptr->pass] - 1 -  in png_read_push_finish_row()
1050             png_pass_ystart[png_ptr->pass]) /  in png_read_push_finish_row()
1051             png_pass_yinc[png_ptr->pass];  in png_read_push_finish_row()
1550          (int)png_ptr->pass);  in png_push_have_row()
1563       png_combine_row(png_ptr, old_row, png_pass_dsp_mask[png_ptr->pass]);  in png_progressive_combine_row()