chromium/third_party/libjpeg_turbo/jcmainct.c

/*
 * jcmainct.c
 *
 * This file was part of the Independent JPEG Group's software:
 * Copyright (C) 1994-1996, Thomas G. Lane.
 * It was modified by The libjpeg-turbo Project to include only code relevant
 * to libjpeg-turbo.
 * For conditions of distribution and use, see the accompanying README.ijg
 * file.
 *
 * This file contains the main buffer controller for compression.
 * The main buffer lies between the pre-processor and the JPEG
 * compressor proper; it holds downsampled data in the JPEG colorspace.
 */

#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"


/* Private buffer controller object */

my_main_controller;

my_main_ptr;


/* Forward declarations */
METHODDEF(void) process_data_simple_main(j_compress_ptr cinfo,
                                         JSAMPARRAY input_buf,
                                         JDIMENSION *in_row_ctr,
                                         JDIMENSION in_rows_avail);


/*
 * Initialize for a processing pass.
 */

METHODDEF(void)
start_pass_main(j_compress_ptr cinfo, J_BUF_MODE pass_mode)
{ … }


/*
 * Process some data.
 * This routine handles the simple pass-through mode,
 * where we have only a strip buffer.
 */

METHODDEF(void)
process_data_simple_main(j_compress_ptr cinfo, JSAMPARRAY input_buf,
                         JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail)
{ … }


/*
 * Initialize main buffer controller.
 */

GLOBAL(void)
jinit_c_main_controller(j_compress_ptr cinfo, boolean need_full_buffer)
{ … }