19f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 29f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * wrrle.c 39f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 49f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Copyright (C) 1991-1996, 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 routines to write output images in RLE format. 99f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The Utah Raster Toolkit library is required (version 3.1 or later). 109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * These routines may need modification for non-Unix environments or 129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * specialized applications. As they stand, they assume output to 139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * an ordinary stdio stream. 149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Based on code contributed by Mike Lijewski, 169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * with updates from Robert Hutchinson. 179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ 209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef RLE_SUPPORTED 229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* rle.h is provided by the Utah Raster Toolkit. */ 249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#include <rle.h> 269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * We assume that JSAMPLE has the same representation as rle_pixel, 299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * to wit, "unsigned char". Hence we can't cope with 12- or 16-bit samples. 309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#if BITS_IN_JSAMPLE != 8 339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ 349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Since RLE stores scanlines bottom-to-top, we have to invert the image 399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * from JPEG's top-to-bottom order. To do this, we save the outgoing data 409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * in a virtual array during put_pixel_row calls, then actually emit the 419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * RLE file during finish_output. 429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * For now, if we emit an RLE color map then it is always 256 entries long, 479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * though not all of the entries need be used. 489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define CMAPBITS 8 519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define CMAPLENGTH (1<<(CMAPBITS)) 529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef struct { 549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project struct djpeg_dest_struct pub; /* public fields */ 559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jvirt_sarray_ptr image; /* virtual array to store the output image */ 579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_map *colormap; /* RLE-style color map, or NULL if none */ 589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_pixel **rle_row; /* To pass rows to rle_putrow() */ 599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} rle_dest_struct; 619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef rle_dest_struct * rle_dest_ptr; 639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Forward declarations */ 659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) rle_put_pixel_rows 669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JPP((j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, 679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION rows_supplied)); 689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Write the file header. 729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * In this module it's easier to wait till finish_output to write anything. 749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectstart_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) 789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_dest_ptr dest = (rle_dest_ptr) dinfo; 809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project size_t cmapsize; 819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int i, ci; 829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; 849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* 879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Make sure the image can be stored in RLE format. 889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * - RLE stores image dimensions as *signed* 16 bit integers. JPEG 909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * uses unsigned, so we have to check the width. 919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * - Colorspace is expected to be grayscale or RGB. 939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * - The number of channels (components) is expected to be 1 (grayscale/ 959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * pseudocolor) or 3 (truecolor/directcolor). 969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * (could be 2 or 4 if using an alpha channel, but we aren't) 979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->output_width > 32767 || cinfo->output_height > 32767) 1009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT2(cinfo, JERR_RLE_DIMENSIONS, cinfo->output_width, 1019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->output_height); 1029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->out_color_space != JCS_GRAYSCALE && 1049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->out_color_space != JCS_RGB) 1059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_RLE_COLORSPACE); 1069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->output_components != 1 && cinfo->output_components != 3) 1089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_RLE_TOOMANYCHANNELS, cinfo->num_components); 1099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Convert colormap, if any, to RLE format. */ 1119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->colormap = NULL; 1139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->quantize_colors) { 1159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Allocate storage for RLE-style cmap, zero any extra entries */ 1169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmapsize = cinfo->out_color_components * CMAPLENGTH * SIZEOF(rle_map); 1179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->colormap = (rle_map *) (*cinfo->mem->alloc_small) 1189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, JPOOL_IMAGE, cmapsize); 1199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(dest->colormap, cmapsize); 1209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Save away data in RLE format --- note 8-bit left shift! */ 1229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Shifting would need adjustment for JSAMPLEs wider than 8 bits. */ 1239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (ci = 0; ci < cinfo->out_color_components; ci++) { 1249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < cinfo->actual_number_of_colors; i++) { 1259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->colormap[ci * CMAPLENGTH + i] = 1269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project GETJSAMPLE(cinfo->colormap[ci][i]) << 8; 1279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Set the output buffer to the first row */ 1329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.buffer = (*cinfo->mem->access_virt_sarray) 1339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->image, (JDIMENSION) 0, (JDIMENSION) 1, TRUE); 1349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.buffer_height = 1; 1359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.put_pixel_rows = rle_put_pixel_rows; 1379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 1399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) { 1409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->total_extra_passes++; /* count file writing as separate pass */ 1419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 1439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Write some pixel data. 1489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This routine just saves the data away in a virtual array. 1509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 1539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectrle_put_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, 1549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION rows_supplied) 1559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_dest_ptr dest = (rle_dest_ptr) dinfo; 1579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->output_scanline < cinfo->output_height) { 1599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.buffer = (*cinfo->mem->access_virt_sarray) 1609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->image, 1619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->output_scanline, (JDIMENSION) 1, TRUE); 1629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Finish up at the end of the file. 1679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Here is where we really output the RLE file. 1699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 1729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectfinish_output_rle (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) 1739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_dest_ptr dest = (rle_dest_ptr) dinfo; 1759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_hdr header; /* Output file information */ 1769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_pixel **rle_row, *red, *green, *blue; 1779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JSAMPROW output_row; 1789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project char cmapcomment[80]; 1799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int row, col; 1809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int ci; 1819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 1829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; 1839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 1849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Initialize the header info */ 1869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header = *rle_hdr_init(NULL); 1879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.rle_file = dest->pub.output_file; 1889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.xmin = 0; 1899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.xmax = cinfo->output_width - 1; 1909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.ymin = 0; 1919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.ymax = cinfo->output_height - 1; 1929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.alpha = 0; 1939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.ncolors = cinfo->output_components; 1949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (ci = 0; ci < cinfo->output_components; ci++) { 1959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project RLE_SET_BIT(header, ci); 1969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->quantize_colors) { 1989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.ncmap = cinfo->out_color_components; 1999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.cmaplen = CMAPBITS; 2009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project header.cmap = dest->colormap; 2019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Add a comment to the output image with the true colormap length. */ 2029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project sprintf(cmapcomment, "color_map_length=%d", cinfo->actual_number_of_colors); 2039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_putcom(cmapcomment, &header); 2049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Emit the RLE header and color map (if any) */ 2079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_put_setup(&header); 2089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Now output the RLE data from our virtual array. 2109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * We assume here that (a) rle_pixel is represented the same as JSAMPLE, 2119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * and (b) we are not on a machine where FAR pointers differ from regular. 2129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 2159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) { 2169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_limit = cinfo->output_height; 2179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_counter = 0; 2189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); 2199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->output_components == 1) { 2239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (row = cinfo->output_height-1; row >= 0; row--) { 2249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_row = (rle_pixel **) (*cinfo->mem->access_virt_sarray) 2259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->image, 2269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (JDIMENSION) row, (JDIMENSION) 1, FALSE); 2279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_putrow(rle_row, (int) cinfo->output_width, &header); 2289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 2299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) { 2309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_counter++; 2319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); 2329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 2369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (row = cinfo->output_height-1; row >= 0; row--) { 2379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_row = (rle_pixel **) dest->rle_row; 2389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project output_row = * (*cinfo->mem->access_virt_sarray) 2399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->image, 2409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (JDIMENSION) row, (JDIMENSION) 1, FALSE); 2419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project red = rle_row[0]; 2429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project green = rle_row[1]; 2439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project blue = rle_row[2]; 2449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (col = cinfo->output_width; col > 0; col--) { 2459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *red++ = GETJSAMPLE(*output_row++); 2469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *green++ = GETJSAMPLE(*output_row++); 2479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *blue++ = GETJSAMPLE(*output_row++); 2489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_putrow(rle_row, (int) cinfo->output_width, &header); 2509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 2519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) { 2529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_counter++; 2539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); 2549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef PROGRESS_REPORT 2609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) 2619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->completed_extra_passes++; 2629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 2639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Emit file trailer */ 2659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_puteof(&header); 2669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project fflush(dest->pub.output_file); 2679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (ferror(dest->pub.output_file)) 2689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 2699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The module selection routine for RLE format output. 2749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(djpeg_dest_ptr) 2779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjinit_write_rle (j_decompress_ptr cinfo) 2789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project rle_dest_ptr dest; 2809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Create module interface object, fill in method pointers */ 2829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest = (rle_dest_ptr) 2839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, 2849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project SIZEOF(rle_dest_struct)); 2859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.start_output = start_output_rle; 2869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.finish_output = finish_output_rle; 2879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Calculate output image dimensions so we can allocate space */ 2899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jpeg_calc_output_dimensions(cinfo); 2909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Allocate a work array for output to the RLE library. */ 2929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->rle_row = (*cinfo->mem->alloc_sarray) 2939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, JPOOL_IMAGE, 2949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->output_width, (JDIMENSION) cinfo->output_components); 2959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Allocate a virtual array to hold the image. */ 2979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->image = (*cinfo->mem->request_virt_sarray) 2989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, 2999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (JDIMENSION) (cinfo->output_width * cinfo->output_components), 3009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cinfo->output_height, (JDIMENSION) 1); 3019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project return (djpeg_dest_ptr) dest; 3039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 3049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* RLE_SUPPORTED */ 306