19f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 29f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jcapimin.c 39f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 49f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Copyright (C) 1994-1998, Thomas G. Lane. 59f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This file is part of the Independent JPEG Group's software. 69f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * For conditions of distribution and use, see the accompanying README file. 79f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 89f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This file contains application interface code for the compression half 99f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * of the JPEG library. These are the "minimum" API routines that may be 109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * needed in either the normal full-compression case or the transcoding-only 119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * case. 129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Most of the routines intended to be called directly by an application 149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * are in this file or in jcapistd.c. But also see jcparam.c for 159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * parameter-setup helper routines, jcomapi.c for routines shared by 169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * compression and decompression, and jctrans.c for the transcoding case. 179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define JPEG_INTERNALS 209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#include "jinclude.h" 219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#include "jpeglib.h" 229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Initialization of a JPEG compression object. 269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The error manager must already be set up (in case memory manager fails). 279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_CreateCompress (j_compress_ptr cinfo, int version, size_t structsize) 319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int i; 339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Guard against version mismatches between library and caller. */ 359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->mem = NULL; /* so jpeg_destroy knows mem mgr not called */ 369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (version != JPEG_LIB_VERSION) 379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT2(cinfo, JERR_BAD_LIB_VERSION, JPEG_LIB_VERSION, version); 389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (structsize != SIZEOF(struct jpeg_compress_struct)) 399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT2(cinfo, JERR_BAD_STRUCT_SIZE, 409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (int) SIZEOF(struct jpeg_compress_struct), (int) structsize); 419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* For debugging purposes, we zero the whole master structure. 439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * But the application has already set the err pointer, and may have set 449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * client_data, so we have to save and restore those fields. 459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Note: if application hasn't set client_data, tools like Purify may 469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * complain here. 479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project { 499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project struct jpeg_error_mgr * err = cinfo->err; 509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project void * client_data = cinfo->client_data; /* ignore Purify complaint here */ 519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(cinfo, SIZEOF(struct jpeg_compress_struct)); 529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->err = err; 539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->client_data = client_data; 549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->is_decompressor = FALSE; 569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Initialize a memory manager instance for this object */ 589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jinit_memory_mgr((j_common_ptr) cinfo); 599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Zero out pointers to permanent structures. */ 619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->progress = NULL; 629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->dest = NULL; 639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->comp_info = NULL; 659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < NUM_QUANT_TBLS; i++) 679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->quant_tbl_ptrs[i] = NULL; 689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < NUM_HUFF_TBLS; i++) { 709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->dc_huff_tbl_ptrs[i] = NULL; 719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->ac_huff_tbl_ptrs[i] = NULL; 729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->script_space = NULL; 759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->input_gamma = 1.0; /* in case application forgets */ 779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* OK, I'm ready */ 799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state = CSTATE_START; 809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Destruction of a JPEG compression object 859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_destroy_compress (j_compress_ptr cinfo) 899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jpeg_destroy((j_common_ptr) cinfo); /* use common routine */ 919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Abort processing of a JPEG compression operation, 969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * but don't destroy the object itself. 979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 1009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_abort_compress (j_compress_ptr cinfo) 1019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jpeg_abort((j_common_ptr) cinfo); /* use common routine */ 1039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Forcibly suppress or un-suppress all quantization and Huffman tables. 1089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Marks all currently defined tables as already written (if suppress) 1099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * or not written (if !suppress). This will control whether they get emitted 1109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * by a subsequent jpeg_start_compress call. 1119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This routine is exported for use by applications that want to produce 1139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * abbreviated JPEG datastreams. It logically belongs in jcparam.c, but 1149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * since it is called by jpeg_start_compress, we put it here --- otherwise 1159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jcparam.o would be linked whether the application used it or not. 1169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 1199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress) 1209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int i; 1229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JQUANT_TBL * qtbl; 1239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JHUFF_TBL * htbl; 1249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < NUM_QUANT_TBLS; i++) { 1269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if ((qtbl = cinfo->quant_tbl_ptrs[i]) != NULL) 1279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project qtbl->sent_table = suppress; 1289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < NUM_HUFF_TBLS; i++) { 1319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if ((htbl = cinfo->dc_huff_tbl_ptrs[i]) != NULL) 1329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project htbl->sent_table = suppress; 1339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if ((htbl = cinfo->ac_huff_tbl_ptrs[i]) != NULL) 1349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project htbl->sent_table = suppress; 1359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Finish JPEG compression. 1419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * If a multipass operating mode was selected, this may do a great deal of 1439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * work including most of the actual output. 1449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 1479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_finish_compress (j_compress_ptr cinfo) 1489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION iMCU_row; 1509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->global_state == CSTATE_SCANNING || 1529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state == CSTATE_RAW_OK) { 1539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Terminate first pass */ 1549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->next_scanline < cinfo->image_height) 1559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_TOO_LITTLE_DATA); 1569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->master->finish_pass) (cinfo); 1579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else if (cinfo->global_state != CSTATE_WRCOEFS) 1589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); 1599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Perform any remaining passes */ 1609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project while (! cinfo->master->is_last_pass) { 1619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->master->prepare_for_pass) (cinfo); 1629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (iMCU_row = 0; iMCU_row < cinfo->total_iMCU_rows; iMCU_row++) { 1639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->progress != NULL) { 1649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->progress->pass_counter = (long) iMCU_row; 1659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->progress->pass_limit = (long) cinfo->total_iMCU_rows; 1669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->progress->progress_monitor) ((j_common_ptr) cinfo); 1679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* We bypass the main controller and invoke coef controller directly; 1699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * all work is being done from the coefficient buffer. 1709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (! (*cinfo->coef->compress_data) (cinfo, (JSAMPIMAGE) NULL)) 1729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_CANT_SUSPEND); 1739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->master->finish_pass) (cinfo); 1759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Write EOI, do final cleanup */ 1779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->marker->write_file_trailer) (cinfo); 1789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->dest->term_destination) (cinfo); 1799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* We can use jpeg_abort to release memory and reset global_state */ 1809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jpeg_abort((j_common_ptr) cinfo); 1819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Write a special marker. 1869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This is only recommended for writing COM or APPn markers. 1879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Must be called after jpeg_start_compress() and before 1889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * first call to jpeg_write_scanlines() or jpeg_write_raw_data(). 1899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 1929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_write_marker (j_compress_ptr cinfo, int marker, 1939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project const JOCTET *dataptr, unsigned int datalen) 1949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JMETHOD(void, write_marker_byte, (j_compress_ptr info, int val)); 1969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->next_scanline != 0 || 1989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (cinfo->global_state != CSTATE_SCANNING && 1999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state != CSTATE_RAW_OK && 2009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state != CSTATE_WRCOEFS)) 2019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); 2029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); 2049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project write_marker_byte = cinfo->marker->write_marker_byte; /* copy for speed */ 2059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project while (datalen--) { 2069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*write_marker_byte) (cinfo, *dataptr); 2079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dataptr++; 2089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Same, but piecemeal. */ 2129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 2149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_write_m_header (j_compress_ptr cinfo, int marker, unsigned int datalen) 2159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->next_scanline != 0 || 2179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (cinfo->global_state != CSTATE_SCANNING && 2189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state != CSTATE_RAW_OK && 2199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->global_state != CSTATE_WRCOEFS)) 2209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); 2219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->marker->write_marker_header) (cinfo, marker, datalen); 2239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 2269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_write_m_byte (j_compress_ptr cinfo, int val) 2279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->marker->write_marker_byte) (cinfo, val); 2299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Alternate compression function: just write an abbreviated table file. 2349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Before calling this, all parameters and a data destination must be set up. 2359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 2369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * To produce a pair of files containing abbreviated tables and abbreviated 2379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * image data, one would proceed as follows: 2389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 2399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * initialize JPEG object 2409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * set JPEG parameters 2419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * set destination to table file 2429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jpeg_write_tables(cinfo); 2439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * set destination to image file 2449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jpeg_start_compress(cinfo, FALSE); 2459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * write data... 2469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jpeg_finish_compress(cinfo); 2479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 2489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * jpeg_write_tables has the side effect of marking all tables written 2499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * (same as jpeg_suppress_tables(..., TRUE)). Thus a subsequent start_compress 2509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * will not re-emit the tables unless it is passed write_all_tables=TRUE. 2519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(void) 2549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjpeg_write_tables (j_compress_ptr cinfo) 2559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->global_state != CSTATE_START) 2579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_BAD_STATE, cinfo->global_state); 2589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* (Re)initialize error mgr and destination modules */ 2609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->err->reset_error_mgr) ((j_common_ptr) cinfo); 2619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->dest->init_destination) (cinfo); 2629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Initialize the marker writer ... bit of a crock to do it here. */ 2639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jinit_marker_writer(cinfo); 2649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Write them tables! */ 2659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->marker->write_tables_only) (cinfo); 2669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* And clean up. */ 2679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->dest->term_destination) (cinfo); 2689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* 2699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * In library releases up through v6a, we called jpeg_abort() here to free 2709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * any working memory allocated by the destination manager and marker 2719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * writer. Some applications had a problem with that: they allocated space 2729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * of their own from the library memory manager, and didn't want it to go 2739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * away during write_tables. So now we do nothing. This will cause a 2749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * memory leak if an app calls write_tables repeatedly without doing a full 2759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * compression cycle or otherwise resetting the JPEG object. However, that 2769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * seems less bad than unexpectedly freeing memory in the normal case. 2779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * An app that prefers the old behavior can call jpeg_abort for itself after 2789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * each call to jpeg_write_tables(). 2799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 281