| Index: third_party/libjpeg/jcmainct.c
|
| diff --git a/third_party/libjpeg/jcmainct.c b/third_party/libjpeg/jcmainct.c
|
| deleted file mode 100644
|
| index e0279a7e017a2ee5a3c6f5bc434e220ddcebbfc5..0000000000000000000000000000000000000000
|
| --- a/third_party/libjpeg/jcmainct.c
|
| +++ /dev/null
|
| @@ -1,293 +0,0 @@
|
| -/*
|
| - * jcmainct.c
|
| - *
|
| - * Copyright (C) 1994-1996, Thomas G. Lane.
|
| - * This file is part of the Independent JPEG Group's software.
|
| - * For conditions of distribution and use, see the accompanying README 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"
|
| -
|
| -
|
| -/* Note: currently, there is no operating mode in which a full-image buffer
|
| - * is needed at this step. If there were, that mode could not be used with
|
| - * "raw data" input, since this module is bypassed in that case. However,
|
| - * we've left the code here for possible use in special applications.
|
| - */
|
| -#undef FULL_MAIN_BUFFER_SUPPORTED
|
| -
|
| -
|
| -/* Private buffer controller object */
|
| -
|
| -typedef struct {
|
| - struct jpeg_c_main_controller pub; /* public fields */
|
| -
|
| - JDIMENSION cur_iMCU_row; /* number of current iMCU row */
|
| - JDIMENSION rowgroup_ctr; /* counts row groups received in iMCU row */
|
| - boolean suspended; /* remember if we suspended output */
|
| - J_BUF_MODE pass_mode; /* current operating mode */
|
| -
|
| - /* If using just a strip buffer, this points to the entire set of buffers
|
| - * (we allocate one for each component). In the full-image case, this
|
| - * points to the currently accessible strips of the virtual arrays.
|
| - */
|
| - JSAMPARRAY buffer[MAX_COMPONENTS];
|
| -
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| - /* If using full-image storage, this array holds pointers to virtual-array
|
| - * control blocks for each component. Unused if not full-image storage.
|
| - */
|
| - jvirt_sarray_ptr whole_image[MAX_COMPONENTS];
|
| -#endif
|
| -} my_main_controller;
|
| -
|
| -typedef my_main_controller * my_main_ptr;
|
| -
|
| -
|
| -/* Forward declarations */
|
| -METHODDEF(void) process_data_simple_main
|
| - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
|
| - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| -METHODDEF(void) process_data_buffer_main
|
| - JPP((j_compress_ptr cinfo, JSAMPARRAY input_buf,
|
| - JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail));
|
| -#endif
|
| -
|
| -
|
| -/*
|
| - * Initialize for a processing pass.
|
| - */
|
| -
|
| -METHODDEF(void)
|
| -start_pass_main (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
|
| -{
|
| - my_main_ptr main = (my_main_ptr) cinfo->main;
|
| -
|
| - /* Do nothing in raw-data mode. */
|
| - if (cinfo->raw_data_in)
|
| - return;
|
| -
|
| - main->cur_iMCU_row = 0; /* initialize counters */
|
| - main->rowgroup_ctr = 0;
|
| - main->suspended = FALSE;
|
| - main->pass_mode = pass_mode; /* save mode for use by process_data */
|
| -
|
| - switch (pass_mode) {
|
| - case JBUF_PASS_THRU:
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| - if (main->whole_image[0] != NULL)
|
| - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
|
| -#endif
|
| - main->pub.process_data = process_data_simple_main;
|
| - break;
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| - case JBUF_SAVE_SOURCE:
|
| - case JBUF_CRANK_DEST:
|
| - case JBUF_SAVE_AND_PASS:
|
| - if (main->whole_image[0] == NULL)
|
| - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
|
| - main->pub.process_data = process_data_buffer_main;
|
| - break;
|
| -#endif
|
| - default:
|
| - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
|
| - break;
|
| - }
|
| -}
|
| -
|
| -
|
| -/*
|
| - * 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)
|
| -{
|
| - my_main_ptr main = (my_main_ptr) cinfo->main;
|
| -
|
| - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
|
| - /* Read input data if we haven't filled the main buffer yet */
|
| - if (main->rowgroup_ctr < DCTSIZE)
|
| - (*cinfo->prep->pre_process_data) (cinfo,
|
| - input_buf, in_row_ctr, in_rows_avail,
|
| - main->buffer, &main->rowgroup_ctr,
|
| - (JDIMENSION) DCTSIZE);
|
| -
|
| - /* If we don't have a full iMCU row buffered, return to application for
|
| - * more data. Note that preprocessor will always pad to fill the iMCU row
|
| - * at the bottom of the image.
|
| - */
|
| - if (main->rowgroup_ctr != DCTSIZE)
|
| - return;
|
| -
|
| - /* Send the completed row to the compressor */
|
| - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
|
| - /* If compressor did not consume the whole row, then we must need to
|
| - * suspend processing and return to the application. In this situation
|
| - * we pretend we didn't yet consume the last input row; otherwise, if
|
| - * it happened to be the last row of the image, the application would
|
| - * think we were done.
|
| - */
|
| - if (! main->suspended) {
|
| - (*in_row_ctr)--;
|
| - main->suspended = TRUE;
|
| - }
|
| - return;
|
| - }
|
| - /* We did finish the row. Undo our little suspension hack if a previous
|
| - * call suspended; then mark the main buffer empty.
|
| - */
|
| - if (main->suspended) {
|
| - (*in_row_ctr)++;
|
| - main->suspended = FALSE;
|
| - }
|
| - main->rowgroup_ctr = 0;
|
| - main->cur_iMCU_row++;
|
| - }
|
| -}
|
| -
|
| -
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| -
|
| -/*
|
| - * Process some data.
|
| - * This routine handles all of the modes that use a full-size buffer.
|
| - */
|
| -
|
| -METHODDEF(void)
|
| -process_data_buffer_main (j_compress_ptr cinfo,
|
| - JSAMPARRAY input_buf, JDIMENSION *in_row_ctr,
|
| - JDIMENSION in_rows_avail)
|
| -{
|
| - my_main_ptr main = (my_main_ptr) cinfo->main;
|
| - int ci;
|
| - jpeg_component_info *compptr;
|
| - boolean writing = (main->pass_mode != JBUF_CRANK_DEST);
|
| -
|
| - while (main->cur_iMCU_row < cinfo->total_iMCU_rows) {
|
| - /* Realign the virtual buffers if at the start of an iMCU row. */
|
| - if (main->rowgroup_ctr == 0) {
|
| - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
|
| - ci++, compptr++) {
|
| - main->buffer[ci] = (*cinfo->mem->access_virt_sarray)
|
| - ((j_common_ptr) cinfo, main->whole_image[ci],
|
| - main->cur_iMCU_row * (compptr->v_samp_factor * DCTSIZE),
|
| - (JDIMENSION) (compptr->v_samp_factor * DCTSIZE), writing);
|
| - }
|
| - /* In a read pass, pretend we just read some source data. */
|
| - if (! writing) {
|
| - *in_row_ctr += cinfo->max_v_samp_factor * DCTSIZE;
|
| - main->rowgroup_ctr = DCTSIZE;
|
| - }
|
| - }
|
| -
|
| - /* If a write pass, read input data until the current iMCU row is full. */
|
| - /* Note: preprocessor will pad if necessary to fill the last iMCU row. */
|
| - if (writing) {
|
| - (*cinfo->prep->pre_process_data) (cinfo,
|
| - input_buf, in_row_ctr, in_rows_avail,
|
| - main->buffer, &main->rowgroup_ctr,
|
| - (JDIMENSION) DCTSIZE);
|
| - /* Return to application if we need more data to fill the iMCU row. */
|
| - if (main->rowgroup_ctr < DCTSIZE)
|
| - return;
|
| - }
|
| -
|
| - /* Emit data, unless this is a sink-only pass. */
|
| - if (main->pass_mode != JBUF_SAVE_SOURCE) {
|
| - if (! (*cinfo->coef->compress_data) (cinfo, main->buffer)) {
|
| - /* If compressor did not consume the whole row, then we must need to
|
| - * suspend processing and return to the application. In this situation
|
| - * we pretend we didn't yet consume the last input row; otherwise, if
|
| - * it happened to be the last row of the image, the application would
|
| - * think we were done.
|
| - */
|
| - if (! main->suspended) {
|
| - (*in_row_ctr)--;
|
| - main->suspended = TRUE;
|
| - }
|
| - return;
|
| - }
|
| - /* We did finish the row. Undo our little suspension hack if a previous
|
| - * call suspended; then mark the main buffer empty.
|
| - */
|
| - if (main->suspended) {
|
| - (*in_row_ctr)++;
|
| - main->suspended = FALSE;
|
| - }
|
| - }
|
| -
|
| - /* If get here, we are done with this iMCU row. Mark buffer empty. */
|
| - main->rowgroup_ctr = 0;
|
| - main->cur_iMCU_row++;
|
| - }
|
| -}
|
| -
|
| -#endif /* FULL_MAIN_BUFFER_SUPPORTED */
|
| -
|
| -
|
| -/*
|
| - * Initialize main buffer controller.
|
| - */
|
| -
|
| -GLOBAL(void)
|
| -jinit_c_main_controller (j_compress_ptr cinfo, boolean need_full_buffer)
|
| -{
|
| - my_main_ptr main;
|
| - int ci;
|
| - jpeg_component_info *compptr;
|
| -
|
| - main = (my_main_ptr)
|
| - (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
|
| - SIZEOF(my_main_controller));
|
| - cinfo->main = (struct jpeg_c_main_controller *) main;
|
| - main->pub.start_pass = start_pass_main;
|
| -
|
| - /* We don't need to create a buffer in raw-data mode. */
|
| - if (cinfo->raw_data_in)
|
| - return;
|
| -
|
| - /* Create the buffer. It holds downsampled data, so each component
|
| - * may be of a different size.
|
| - */
|
| - if (need_full_buffer) {
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| - /* Allocate a full-image virtual array for each component */
|
| - /* Note we pad the bottom to a multiple of the iMCU height */
|
| - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
|
| - ci++, compptr++) {
|
| - main->whole_image[ci] = (*cinfo->mem->request_virt_sarray)
|
| - ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE,
|
| - compptr->width_in_blocks * DCTSIZE,
|
| - (JDIMENSION) jround_up((long) compptr->height_in_blocks,
|
| - (long) compptr->v_samp_factor) * DCTSIZE,
|
| - (JDIMENSION) (compptr->v_samp_factor * DCTSIZE));
|
| - }
|
| -#else
|
| - ERREXIT(cinfo, JERR_BAD_BUFFER_MODE);
|
| -#endif
|
| - } else {
|
| -#ifdef FULL_MAIN_BUFFER_SUPPORTED
|
| - main->whole_image[0] = NULL; /* flag for no virtual arrays */
|
| -#endif
|
| - /* Allocate a strip buffer for each component */
|
| - for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
|
| - ci++, compptr++) {
|
| - main->buffer[ci] = (*cinfo->mem->alloc_sarray)
|
| - ((j_common_ptr) cinfo, JPOOL_IMAGE,
|
| - compptr->width_in_blocks * DCTSIZE,
|
| - (JDIMENSION) (compptr->v_samp_factor * DCTSIZE));
|
| - }
|
| - }
|
| -}
|
|
|