media/libjpeg/jdmaster.h

   1 /*
   2  * jdmaster.h
   3  *
   4  * This file was part of the Independent JPEG Group's software:
   5  * Copyright (C) 1991-1995, Thomas G. Lane.
   6  * For conditions of distribution and use, see the accompanying README.ijg
   7  * file.
   8  *
   9  * This file contains the master control structure for the JPEG decompressor.
  10  */
  11
  12 /* Private state */
  13
  14 typedef struct {
  15   struct jpeg_decomp_master pub; /* public fields */
  16
  17   int pass_number;              /* # of passes completed */
  18
  19   boolean using_merged_upsample; /* TRUE if using merged upsample/cconvert */
  20
  21   /* Saved references to initialized quantizer modules,
  22    * in case we need to switch modes.
  23    */
  24   struct jpeg_color_quantizer *quantizer_1pass;
  25   struct jpeg_color_quantizer *quantizer_2pass;
  26 } my_decomp_master;
  27
  28 typedef my_decomp_master *my_master_ptr;