Added Irrlicht 1.8, but without all the Windows binaries.

author: David Walter Seikel 2013-01-13 17:24:39 +1000
committer: David Walter Seikel 2013-01-13 17:24:39 +1000
commit: 393b5cd1dc438872af89d334ef6e5fcc59f27d47 (patch)
tree: 6a14521219942a08a1b95cb2f5a923a9edd60f63 /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c
parent: Add a note about rasters suggested start up code. (diff)
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1 files changed, 288 insertions, 0 deletions
diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c
new file mode 100644
index 0000000..3382d91
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c
@@ -0,0 +1,288 @@
+/*
+ * jcapimin.c
+ *
+ * Copyright (C) 1994-1998, Thomas G. Lane.
+ * Modified 2003-2010 by Guido Vollbeding.
+ * 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 application interface code for the compression half
+ * of the JPEG library.  These are the "minimum" API routines that may be
+ * needed in either the normal full-compression case or the transcoding-only
+ * case.
+ *
+ * Most of the routines intended to be called directly by an application
+ * are in this file or in jcapistd.c.  But also see jcparam.c for
+ * parameter-setup helper routines, jcomapi.c for routines shared by
+ * compression and decompression, and jctrans.c for the transcoding case.
+ */
+#define JPEG_INTERNALS
+#include "jinclude.h"
+#include "jpeglib.h"
+/*
+ * Initialization of a JPEG compression object.
+ * The error manager must already be set up (in case memory manager fails).
+ */
+GLOBAL(void)
+jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize)
+{
+  int i;
+  /* Guard against version mismatches between library and caller. */
+  cinfo->mem = NULL;            /* so jpeg_destroy knows mem mgr not called */
+  if (version != JPEG_LIB_VERSION)
+    ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);
+  if (structsize != SIZEOF(struct jpeg_compress_struct))
+    ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, 
+             (int) SIZEOF(struct jpeg_compress_struct), (int) structsize);
+  /* For debugging purposes, we zero the whole master structure.
+   * But the application has already set the err pointer, and may have set
+   * client_data, so we have to save and restore those fields.
+   * Note: if application hasn't set client_data, tools like Purify may
+   * complain here.
+   */
+  {
+    struct jpeg_error_mgr * err = cinfo->err;
+    void * client_data = cinfo->client_data; /* ignore Purify complaint here */
+    MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct));
+    cinfo->err = err;
+    cinfo->client_data = client_data;
+  }
+  cinfo->is_decompressor = FALSE;
+  /* Initialize a memory manager instance for this object */
+  jinit_memory_mgr((j_common_ptr) cinfo);
+  /* Zero out pointers to permanent structures. */
+  cinfo->progress = NULL;
+  cinfo->dest = NULL;
+  cinfo->comp_info = NULL;
+  for (i = 0; i < NUM_QUANT_TBLS; i++) {
+    cinfo->quant_tbl_ptrs[i] = NULL;
+    cinfo->q_scale_factor[i] = 100;
+  }
+  for (i = 0; i < NUM_HUFF_TBLS; i++) {
+    cinfo->dc_huff_tbl_ptrs[i] = NULL;
+    cinfo->ac_huff_tbl_ptrs[i] = NULL;
+  }
+  /* Must do it here for emit_dqt in case jpeg_write_tables is used */
+  cinfo->block_size = DCTSIZE;
+  cinfo->natural_order = jpeg_natural_order;
+  cinfo->lim_Se = DCTSIZE2-1;
+  cinfo->script_space = NULL;
+  cinfo->input_gamma = 1.0;     /* in case application forgets */
+  /* OK, I'm ready */
+  cinfo->global_state = CSTATE_START;
+}
+/*
+ * Destruction of a JPEG compression object
+ */
+GLOBAL(void)
+jpeg_destroy_compress (j_compress_ptr cinfo)
+{
+  jpeg_destroy((j_common_ptr) cinfo); /* use common routine */
+}
+/*
+ * Abort processing of a JPEG compression operation,
+ * but don't destroy the object itself.
+ */
+GLOBAL(void)
+jpeg_abort_compress (j_compress_ptr cinfo)
+{
+  jpeg_abort((j_common_ptr) cinfo); /* use common routine */
+}
+/*
+ * Forcibly suppress or un-suppress all quantization and Huffman tables.
+ * Marks all currently defined tables as already written (if suppress)
+ * or not written (if !suppress).  This will control whether they get emitted
+ * by a subsequent jpeg_start_compress call.
+ *
+ * This routine is exported for use by applications that want to produce
+ * abbreviated JPEG datastreams.  It logically belongs in jcparam.c, but
+ * since it is called by jpeg_start_compress, we put it here --- otherwise
+ * jcparam.o would be linked whether the application used it or not.
+ */
+GLOBAL(void)
+jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress)
+{
+  int i;
+  JQUANT_TBL * qtbl;
+  JHUFF_TBL * htbl;
+  for (i = 0; i < NUM_QUANT_TBLS; i++) {
+    if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL)
+      qtbl->sent_table = suppress;
+  }
+  for (i = 0; i < NUM_HUFF_TBLS; i++) {
+    if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL)
+      htbl->sent_table = suppress;
+    if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL)
+      htbl->sent_table = suppress;
+  }
+}
+/*
+ * Finish JPEG compression.
+ *
+ * If a multipass operating mode was selected, this may do a great deal of
+ * work including most of the actual output.
+ */
+GLOBAL(void)
+jpeg_finish_compress (j_compress_ptr cinfo)
+{
+  JDIMENSION iMCU_row;
+  if (cinfo->global_state == CSTATE_SCANNING ||
+      cinfo->global_state == CSTATE_RAW_OK) {
+    /* Terminate first pass */
+    if (cinfo->next_scanline < cinfo->image_height)
+      ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);
+    (*cinfo->master->finish_pass) (cinfo);
+  } else if (cinfo->global_state != CSTATE_WRCOEFS)
+    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
+  /* Perform any remaining passes */
+  while (! cinfo->master->is_last_pass) {
+    (*cinfo->master->prepare_for_pass) (cinfo);
+    for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) {
+      if (cinfo->progress != NULL) {
+        cinfo->progress->pass_counter = (long) iMCU_row;
+        cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows;
+        (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
+      }
+      /* We bypass the main controller and invoke coef controller directly;
+       * all work is being done from the coefficient buffer.
+       */
+      if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL))
+        ERREXIT(cinfo, JERR_CANT_SUSPEND);
+    }
+    (*cinfo->master->finish_pass) (cinfo);
+  }
+  /* Write EOI, do final cleanup */
+  (*cinfo->marker->write_file_trailer) (cinfo);
+  (*cinfo->dest->term_destination) (cinfo);
+  /* We can use jpeg_abort to release memory and reset global_state */
+  jpeg_abort((j_common_ptr) cinfo);
+}
+/*
+ * Write a special marker.
+ * This is only recommended for writing COM or APPn markers.
+ * Must be called after jpeg_start_compress() and before
+ * first call to jpeg_write_scanlines() or jpeg_write_raw_data().
+ */
+GLOBAL(void)
+jpeg_write_marker (j_compress_ptr cinfo, int marker,
+                   const JOCTET *dataptr, unsigned int datalen)
+{
+  JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val));
+  if (cinfo->next_scanline != 0 ||
+      (cinfo->global_state != CSTATE_SCANNING &&
+       cinfo->global_state != CSTATE_RAW_OK &&
+       cinfo->global_state != CSTATE_WRCOEFS))
+    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
+  (*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
+  write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */
+  while (datalen--) {
+    (*write_marker_byte) (cinfo, *dataptr);
+    dataptr++;
+  }
+}
+/* Same, but piecemeal. */
+GLOBAL(void)
+jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen)
+{
+  if (cinfo->next_scanline != 0 ||
+      (cinfo->global_state != CSTATE_SCANNING &&
+       cinfo->global_state != CSTATE_RAW_OK &&
+       cinfo->global_state != CSTATE_WRCOEFS))
+    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
+  (*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
+}
+GLOBAL(void)
+jpeg_write_m_byte (j_compress_ptr cinfo, int val)
+{
+  (*cinfo->marker->write_marker_byte) (cinfo, val);
+}
+/*
+ * Alternate compression function: just write an abbreviated table file.
+ * Before calling this, all parameters and a data destination must be set up.
+ *
+ * To produce a pair of files containing abbreviated tables and abbreviated
+ * image data, one would proceed as follows:
+ *
+ *              initialize JPEG object
+ *              set JPEG parameters
+ *              set destination to table file
+ *              jpeg_write_tables(cinfo);
+ *              set destination to image file
+ *              jpeg_start_compress(cinfo, FALSE);
+ *              write data...
+ *              jpeg_finish_compress(cinfo);
+ *
+ * jpeg_write_tables has the side effect of marking all tables written
+ * (same as jpeg_suppress_tables(..., TRUE)).  Thus a subsequent start_compress
+ * will not re-emit the tables unless it is passed write_all_tables=TRUE.
+ */
+GLOBAL(void)
+jpeg_write_tables (j_compress_ptr cinfo)
+{
+  if (cinfo->global_state != CSTATE_START)
+    ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
+  /* (Re)initialize error mgr and destination modules */
+  (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
+  (*cinfo->dest->init_destination) (cinfo);
+  /* Initialize the marker writer ... bit of a crock to do it here. */
+  jinit_marker_writer(cinfo);
+  /* Write them tables! */
+  (*cinfo->marker->write_tables_only) (cinfo);
+  /* And clean up. */
+  (*cinfo->dest->term_destination) (cinfo);
+  /*
+   * In library releases up through v6a, we called jpeg_abort() here to free
+   * any working memory allocated by the destination manager and marker
+   * writer.  Some applications had a problem with that: they allocated space
+   * of their own from the library memory manager, and didn't want it to go
+   * away during write_tables.  So now we do nothing.  This will cause a
+   * memory leak if an app calls write_tables repeatedly without doing a full
+   * compression cycle or otherwise resetting the JPEG object.  However, that
+   * seems less bad than unexpectedly freeing memory in the normal case.
+   * An app that prefers the old behavior can call jpeg_abort for itself after
+   * each call to jpeg_write_tables().
+   */
+}
author	David Walter Seikel	2013-01-13 17:24:39 +1000
committer	David Walter Seikel	2013-01-13 17:24:39 +1000
commit	393b5cd1dc438872af89d334ef6e5fcc59f27d47 (patch)
tree	6a14521219942a08a1b95cb2f5a923a9edd60f63 /libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c
parent	Add a note about rasters suggested start up code. (diff)
download	SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.zip SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.gz SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.bz2 SledjHamr-393b5cd1dc438872af89d334ef6e5fcc59f27d47.tar.xz

diff --git a/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c new file mode 100644 index 0000000..3382d91 --- /dev/null +++ b/libraries/irrlicht-1.8/source/Irrlicht/jpeglib/jcapimin.c
@@ -0,0 +1,288 @@
	1	/*
	2	* jcapimin.c
	3	*
	4	* Copyright (C) 1994-1998, Thomas G. Lane.
	5	* Modified 2003-2010 by Guido Vollbeding.
	6	* This file is part of the Independent JPEG Group's software.
	7	* For conditions of distribution and use, see the accompanying README file.
	8	*
	9	* This file contains application interface code for the compression half
	10	* of the JPEG library. These are the "minimum" API routines that may be
	11	* needed in either the normal full-compression case or the transcoding-only
	12	* case.
	13	*
	14	* Most of the routines intended to be called directly by an application
	15	* are in this file or in jcapistd.c. But also see jcparam.c for
	16	* parameter-setup helper routines, jcomapi.c for routines shared by
	17	* compression and decompression, and jctrans.c for the transcoding case.
	18	*/
	19
	20	#define JPEG_INTERNALS
	21	#include "jinclude.h"
	22	#include "jpeglib.h"
	23
	24
	25	/*
	26	* Initialization of a JPEG compression object.
	27	* The error manager must already be set up (in case memory manager fails).
	28	*/
	29
	30	GLOBAL(void)
	31	jpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize)
	32	{
	33	int i;
	34
	35	/* Guard against version mismatches between library and caller. */
	36	cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */
	37	if (version != JPEG_LIB_VERSION)
	38	ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version);
	39	if (structsize != SIZEOF(struct jpeg_compress_struct))
	40	ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE,
	41	(int) SIZEOF(struct jpeg_compress_struct), (int) structsize);
	42
	43	/* For debugging purposes, we zero the whole master structure.
	44	* But the application has already set the err pointer, and may have set
	45	* client_data, so we have to save and restore those fields.
	46	* Note: if application hasn't set client_data, tools like Purify may
	47	* complain here.
	48	*/
	49	{
	50	struct jpeg_error_mgr * err = cinfo->err;
	51	void * client_data = cinfo->client_data; /* ignore Purify complaint here */
	52	MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct));
	53	cinfo->err = err;
	54	cinfo->client_data = client_data;
	55	}
	56	cinfo->is_decompressor = FALSE;
	57
	58	/* Initialize a memory manager instance for this object */
	59	jinit_memory_mgr((j_common_ptr) cinfo);
	60
	61	/* Zero out pointers to permanent structures. */
	62	cinfo->progress = NULL;
	63	cinfo->dest = NULL;
	64
	65	cinfo->comp_info = NULL;
	66
	67	for (i = 0; i < NUM_QUANT_TBLS; i++) {
	68	cinfo->quant_tbl_ptrs[i] = NULL;
	69	cinfo->q_scale_factor[i] = 100;
	70	}
	71
	72	for (i = 0; i < NUM_HUFF_TBLS; i++) {
	73	cinfo->dc_huff_tbl_ptrs[i] = NULL;
	74	cinfo->ac_huff_tbl_ptrs[i] = NULL;
	75	}
	76
	77	/* Must do it here for emit_dqt in case jpeg_write_tables is used */
	78	cinfo->block_size = DCTSIZE;
	79	cinfo->natural_order = jpeg_natural_order;
	80	cinfo->lim_Se = DCTSIZE2-1;
	81
	82	cinfo->script_space = NULL;
	83
	84	cinfo->input_gamma = 1.0; /* in case application forgets */
	85
	86	/* OK, I'm ready */
	87	cinfo->global_state = CSTATE_START;
	88	}
	89
	90
	91	/*
	92	* Destruction of a JPEG compression object
	93	*/
	94
	95	GLOBAL(void)
	96	jpeg_destroy_compress (j_compress_ptr cinfo)
	97	{
	98	jpeg_destroy((j_common_ptr) cinfo); /* use common routine */
	99	}
	100
	101
	102	/*
	103	* Abort processing of a JPEG compression operation,
	104	* but don't destroy the object itself.
	105	*/
	106
	107	GLOBAL(void)
	108	jpeg_abort_compress (j_compress_ptr cinfo)
	109	{
	110	jpeg_abort((j_common_ptr) cinfo); /* use common routine */
	111	}
	112
	113
	114	/*
	115	* Forcibly suppress or un-suppress all quantization and Huffman tables.
	116	* Marks all currently defined tables as already written (if suppress)
	117	* or not written (if !suppress). This will control whether they get emitted
	118	* by a subsequent jpeg_start_compress call.
	119	*
	120	* This routine is exported for use by applications that want to produce
	121	* abbreviated JPEG datastreams. It logically belongs in jcparam.c, but
	122	* since it is called by jpeg_start_compress, we put it here --- otherwise
	123	* jcparam.o would be linked whether the application used it or not.
	124	*/
	125
	126	GLOBAL(void)
	127	jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress)
	128	{
	129	int i;
	130	JQUANT_TBL * qtbl;
	131	JHUFF_TBL * htbl;
	132
	133	for (i = 0; i < NUM_QUANT_TBLS; i++) {
	134	if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL)
	135	qtbl->sent_table = suppress;
	136	}
	137
	138	for (i = 0; i < NUM_HUFF_TBLS; i++) {
	139	if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL)
	140	htbl->sent_table = suppress;
	141	if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL)
	142	htbl->sent_table = suppress;
	143	}
	144	}
	145
	146
	147	/*
	148	* Finish JPEG compression.
	149	*
	150	* If a multipass operating mode was selected, this may do a great deal of
	151	* work including most of the actual output.
	152	*/
	153
	154	GLOBAL(void)
	155	jpeg_finish_compress (j_compress_ptr cinfo)
	156	{
	157	JDIMENSION iMCU_row;
	158
	159	if (cinfo->global_state == CSTATE_SCANNING \|\|
	160	cinfo->global_state == CSTATE_RAW_OK) {
	161	/* Terminate first pass */
	162	if (cinfo->next_scanline < cinfo->image_height)
	163	ERREXIT(cinfo, JERR_TOO_LITTLE_DATA);
	164	(*cinfo->master->finish_pass) (cinfo);
	165	} else if (cinfo->global_state != CSTATE_WRCOEFS)
	166	ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
	167	/* Perform any remaining passes */
	168	while (! cinfo->master->is_last_pass) {
	169	(*cinfo->master->prepare_for_pass) (cinfo);
	170	for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) {
	171	if (cinfo->progress != NULL) {
	172	cinfo->progress->pass_counter = (long) iMCU_row;
	173	cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows;
	174	(*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo);
	175	}
	176	/* We bypass the main controller and invoke coef controller directly;
	177	* all work is being done from the coefficient buffer.
	178	*/
	179	if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL))
	180	ERREXIT(cinfo, JERR_CANT_SUSPEND);
	181	}
	182	(*cinfo->master->finish_pass) (cinfo);
	183	}
	184	/* Write EOI, do final cleanup */
	185	(*cinfo->marker->write_file_trailer) (cinfo);
	186	(*cinfo->dest->term_destination) (cinfo);
	187	/* We can use jpeg_abort to release memory and reset global_state */
	188	jpeg_abort((j_common_ptr) cinfo);
	189	}
	190
	191
	192	/*
	193	* Write a special marker.
	194	* This is only recommended for writing COM or APPn markers.
	195	* Must be called after jpeg_start_compress() and before
	196	* first call to jpeg_write_scanlines() or jpeg_write_raw_data().
	197	*/
	198
	199	GLOBAL(void)
	200	jpeg_write_marker (j_compress_ptr cinfo, int marker,
	201	const JOCTET *dataptr, unsigned int datalen)
	202	{
	203	JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val));
	204
	205	if (cinfo->next_scanline != 0 \|\|
	206	(cinfo->global_state != CSTATE_SCANNING &&
	207	cinfo->global_state != CSTATE_RAW_OK &&
	208	cinfo->global_state != CSTATE_WRCOEFS))
	209	ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
	210
	211	(*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
	212	write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */
	213	while (datalen--) {
	214	(write_marker_byte) (cinfo, dataptr);
	215	dataptr++;
	216	}
	217	}
	218
	219	/* Same, but piecemeal. */
	220
	221	GLOBAL(void)
	222	jpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen)
	223	{
	224	if (cinfo->next_scanline != 0 \|\|
	225	(cinfo->global_state != CSTATE_SCANNING &&
	226	cinfo->global_state != CSTATE_RAW_OK &&
	227	cinfo->global_state != CSTATE_WRCOEFS))
	228	ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
	229
	230	(*cinfo->marker->write_marker_header) (cinfo, marker, datalen);
	231	}
	232
	233	GLOBAL(void)
	234	jpeg_write_m_byte (j_compress_ptr cinfo, int val)
	235	{
	236	(*cinfo->marker->write_marker_byte) (cinfo, val);
	237	}
	238
	239
	240	/*
	241	* Alternate compression function: just write an abbreviated table file.
	242	* Before calling this, all parameters and a data destination must be set up.
	243	*
	244	* To produce a pair of files containing abbreviated tables and abbreviated
	245	* image data, one would proceed as follows:
	246	*
	247	* initialize JPEG object
	248	* set JPEG parameters
	249	* set destination to table file
	250	* jpeg_write_tables(cinfo);
	251	* set destination to image file
	252	* jpeg_start_compress(cinfo, FALSE);
	253	* write data...
	254	* jpeg_finish_compress(cinfo);
	255	*
	256	* jpeg_write_tables has the side effect of marking all tables written
	257	* (same as jpeg_suppress_tables(..., TRUE)). Thus a subsequent start_compress
	258	* will not re-emit the tables unless it is passed write_all_tables=TRUE.
	259	*/
	260
	261	GLOBAL(void)
	262	jpeg_write_tables (j_compress_ptr cinfo)
	263	{
	264	if (cinfo->global_state != CSTATE_START)
	265	ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state);
	266
	267	/* (Re)initialize error mgr and destination modules */
	268	(*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo);
	269	(*cinfo->dest->init_destination) (cinfo);
	270	/* Initialize the marker writer ... bit of a crock to do it here. */
	271	jinit_marker_writer(cinfo);
	272	/* Write them tables! */
	273	(*cinfo->marker->write_tables_only) (cinfo);
	274	/* And clean up. */
	275	(*cinfo->dest->term_destination) (cinfo);
	276	/*
	277	* In library releases up through v6a, we called jpeg_abort() here to free
	278	* any working memory allocated by the destination manager and marker
	279	* writer. Some applications had a problem with that: they allocated space
	280	* of their own from the library memory manager, and didn't want it to go
	281	* away during write_tables. So now we do nothing. This will cause a
	282	* memory leak if an app calls write_tables repeatedly without doing a full
	283	* compression cycle or otherwise resetting the JPEG object. However, that
	284	* seems less bad than unexpectedly freeing memory in the normal case.
	285	* An app that prefers the old behavior can call jpeg_abort for itself after
	286	* each call to jpeg_write_tables().
	287	*/
	288	}