19f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 29f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * wrbmp.c 39f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 49f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Copyright (C) 1994-1996, 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 Microsoft "BMP" 99f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * format (MS Windows 3.x and OS/2 1.x flavors). 109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Either 8-bit colormapped or 24-bit full-color format can be written. 119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * No compression is supported. 129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * These routines may need modification for non-Unix environments or 149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * specialized applications. As they stand, they assume output to 159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * an ordinary stdio stream. 169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This code contributed by James Arthur Boucher. 189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ 219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#ifdef BMP_SUPPORTED 239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * To support 12-bit JPEG data, we'd have to scale output down to 8 bits. 279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * This is not yet implemented. 289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#if BITS_IN_JSAMPLE != 8 319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project Sorry, this code only copes with 8-bit JSAMPLEs. /* deliberate syntax err */ 329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif 339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Since BMP stores scanlines bottom-to-top, we have to invert the image 369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * from JPEG's top-to-bottom order. To do this, we save the outgoing data 379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * in a virtual array during put_pixel_row calls, then actually emit the 389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * BMP file during finish_output. The virtual array contains one JSAMPLE per 399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * pixel if the output is grayscale or colormapped, three if it is full color. 409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Private version of data destination object */ 439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef struct { 459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project struct djpeg_dest_struct pub; /* public fields */ 469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project boolean is_os2; /* saves the OS2 format request flag */ 489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jvirt_sarray_ptr whole_image; /* needed to reverse row order */ 509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION data_width; /* JSAMPLEs per row */ 519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION row_width; /* physical width of one row in the BMP file */ 529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int pad_bytes; /* number of padding bytes needed per row */ 539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION cur_output_row; /* next row# to write to virtual array */ 549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} bmp_dest_struct; 559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projecttypedef bmp_dest_struct * bmp_dest_ptr; 579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Forward declarations */ 609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectLOCAL(void) write_colormap 619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JPP((j_decompress_ptr cinfo, bmp_dest_ptr dest, 629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int map_colors, int map_entry_size)); 639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Write some pixel data. 679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * In this module rows_supplied will always be 1. 689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectput_pixel_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, 729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION rows_supplied) 739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* This version is for writing 24-bit pixels */ 749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; 769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JSAMPARRAY image_ptr; 779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JSAMPROW inptr, outptr; 789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JDIMENSION col; 799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int pad; 809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Access next row in virtual array */ 829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project image_ptr = (*cinfo->mem->access_virt_sarray) 839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->whole_image, 849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->cur_output_row, (JDIMENSION) 1, TRUE); 859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->cur_output_row++; 869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Transfer data. Note destination values must be in BGR order 889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * (even though Microsoft's own documents say the opposite). 899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project inptr = dest->pub.buffer[0]; 919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr = image_ptr[0]; 929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (col = cinfo->output_width; col > 0; col--) { 939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr[2] = *inptr++; /* can omit GETJSAMPLE() safely */ 949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr[1] = *inptr++; 959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr[0] = *inptr++; 969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr += 3; 979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Zero out the pad bytes. */ 1009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project pad = dest->pad_bytes; 1019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project while (--pad >= 0) 1029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *outptr++ = 0; 1039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 1069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectput_gray_rows (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo, 1079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION rows_supplied) 1089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* This version is for grayscale OR quantized color output */ 1099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; 1119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JSAMPARRAY image_ptr; 1129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JSAMPROW inptr, outptr; 1139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JDIMENSION col; 1149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int pad; 1159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Access next row in virtual array */ 1179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project image_ptr = (*cinfo->mem->access_virt_sarray) 1189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->whole_image, 1199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->cur_output_row, (JDIMENSION) 1, TRUE); 1209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->cur_output_row++; 1219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Transfer data. */ 1239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project inptr = dest->pub.buffer[0]; 1249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project outptr = image_ptr[0]; 1259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (col = cinfo->output_width; col > 0; col--) { 1269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *outptr++ = *inptr++; /* can omit GETJSAMPLE() safely */ 1279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Zero out the pad bytes. */ 1309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project pad = dest->pad_bytes; 1319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project while (--pad >= 0) 1329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project *outptr++ = 0; 1339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Startup: normally writes the file header. 1389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * In this module we may as well postpone everything until finish_output. 1399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 1429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectstart_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) 1439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* no work here */ 1459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 1469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 1499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Finish up at the end of the file. 1509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Here is where we really output the BMP file. 1529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * 1539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * First, routines to write the Windows and OS/2 variants of the file header. 1549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 1559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectLOCAL(void) 1579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectwrite_bmp_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) 1589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Write a Windows-style BMP file header, including colormap if needed */ 1599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 1609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project char bmpfileheader[14]; 1619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project char bmpinfoheader[40]; 1629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define PUT_2B(array,offset,value) \ 1639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (array[offset] = (char) ((value) & 0xFF), \ 1649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project array[offset+1] = (char) (((value) >> 8) & 0xFF)) 1659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#define PUT_4B(array,offset,value) \ 1669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (array[offset] = (char) ((value) & 0xFF), \ 1679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project array[offset+1] = (char) (((value) >> 8) & 0xFF), \ 1689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project array[offset+2] = (char) (((value) >> 16) & 0xFF), \ 1699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project array[offset+3] = (char) (((value) >> 24) & 0xFF)) 1709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project INT32 headersize, bfSize; 1719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int bits_per_pixel, cmap_entries; 1729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Compute colormap size and total file size */ 1749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->out_color_space == JCS_RGB) { 1759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->quantize_colors) { 1769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Colormapped RGB */ 1779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 8; 1789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 256; 1799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 1809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Unquantized, full color RGB */ 1819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 24; 1829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 0; 1839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 1859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Grayscale output. We need to fake a 256-entry colormap. */ 1869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 8; 1879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 256; 1889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 1899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* File size */ 1909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project headersize = 14 + 40 + cmap_entries * 4; /* Header and colormap */ 1919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; 1929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Set unused fields of header to 0 */ 1949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); 1959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(bmpinfoheader, SIZEOF(bmpinfoheader)); 1969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 1979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Fill the file header */ 1989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ 1999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmpfileheader[1] = 0x4D; 2009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ 2019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* we leave bfReserved1 & bfReserved2 = 0 */ 2029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ 2039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Fill the info header (Microsoft calls this a BITMAPINFOHEADER) */ 2059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpinfoheader, 0, 40); /* biSize */ 2069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpinfoheader, 4, cinfo->output_width); /* biWidth */ 2079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpinfoheader, 8, cinfo->output_height); /* biHeight */ 2089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpinfoheader, 12, 1); /* biPlanes - must be 1 */ 2099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpinfoheader, 14, bits_per_pixel); /* biBitCount */ 2109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* we leave biCompression = 0, for none */ 2119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* we leave biSizeImage = 0; this is correct for uncompressed data */ 2129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->density_unit == 2) { /* if have density in dots/cm, then */ 2139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpinfoheader, 24, (INT32) (cinfo->X_density*100)); /* XPels/M */ 2149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpinfoheader, 28, (INT32) (cinfo->Y_density*100)); /* XPels/M */ 2159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpinfoheader, 32, cmap_entries); /* biClrUsed */ 2179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* we leave biClrImportant = 0 */ 2189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) 2209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 2219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (JFWRITE(dest->pub.output_file, bmpinfoheader, 40) != (size_t) 40) 2229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 2239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cmap_entries > 0) 2259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project write_colormap(cinfo, dest, cmap_entries, 4); 2269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectLOCAL(void) 2309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectwrite_os2_header (j_decompress_ptr cinfo, bmp_dest_ptr dest) 2319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* Write an OS2-style BMP file header, including colormap if needed */ 2329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project char bmpfileheader[14]; 2349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project char bmpcoreheader[12]; 2359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project INT32 headersize, bfSize; 2369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int bits_per_pixel, cmap_entries; 2379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Compute colormap size and total file size */ 2399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->out_color_space == JCS_RGB) { 2409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->quantize_colors) { 2419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Colormapped RGB */ 2429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 8; 2439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 256; 2449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 2459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Unquantized, full color RGB */ 2469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 24; 2479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 0; 2489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 2509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Grayscale output. We need to fake a 256-entry colormap. */ 2519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bits_per_pixel = 8; 2529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cmap_entries = 256; 2539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 2549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* File size */ 2559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project headersize = 14 + 12 + cmap_entries * 3; /* Header and colormap */ 2569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bfSize = headersize + (INT32) dest->row_width * (INT32) cinfo->output_height; 2579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Set unused fields of header to 0 */ 2599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(bmpfileheader, SIZEOF(bmpfileheader)); 2609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project MEMZERO(bmpcoreheader, SIZEOF(bmpcoreheader)); 2619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Fill the file header */ 2639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmpfileheader[0] = 0x42; /* first 2 bytes are ASCII 'B', 'M' */ 2649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmpfileheader[1] = 0x4D; 2659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpfileheader, 2, bfSize); /* bfSize */ 2669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* we leave bfReserved1 & bfReserved2 = 0 */ 2679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_4B(bmpfileheader, 10, headersize); /* bfOffBits */ 2689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Fill the info header (Microsoft calls this a BITMAPCOREHEADER) */ 2709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpcoreheader, 0, 12); /* bcSize */ 2719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpcoreheader, 4, cinfo->output_width); /* bcWidth */ 2729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpcoreheader, 6, cinfo->output_height); /* bcHeight */ 2739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpcoreheader, 8, 1); /* bcPlanes - must be 1 */ 2749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project PUT_2B(bmpcoreheader, 10, bits_per_pixel); /* bcBitCount */ 2759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (JFWRITE(dest->pub.output_file, bmpfileheader, 14) != (size_t) 14) 2779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 2789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (JFWRITE(dest->pub.output_file, bmpcoreheader, 12) != (size_t) 12) 2799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 2809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cmap_entries > 0) 2829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project write_colormap(cinfo, dest, cmap_entries, 3); 2839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 2849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 2879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Write the colormap. 2889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * Windows uses BGR0 map entries; OS/2 uses BGR entries. 2899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 2909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 2919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectLOCAL(void) 2929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectwrite_colormap (j_decompress_ptr cinfo, bmp_dest_ptr dest, 2939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int map_colors, int map_entry_size) 2949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 2959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JSAMPARRAY colormap = cinfo->colormap; 2969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int num_colors = cinfo->actual_number_of_colors; 2979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project FILE * outfile = dest->pub.output_file; 2989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project int i; 2999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (colormap != NULL) { 3019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->out_color_components == 3) { 3029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Normal case with RGB colormap */ 3039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < num_colors; i++) { 3049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[2][i]), outfile); 3059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[1][i]), outfile); 3069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[0][i]), outfile); 3079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (map_entry_size == 4) 3089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 3119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Grayscale colormap (only happens with grayscale quantization) */ 3129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < num_colors; i++) { 3139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[0][i]), outfile); 3149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[0][i]), outfile); 3159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(colormap[0][i]), outfile); 3169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (map_entry_size == 4) 3179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 3219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* If no colormap, must be grayscale data. Generate a linear "map". */ 3229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (i = 0; i < 256; i++) { 3239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(i, outfile); 3249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(i, outfile); 3259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(i, outfile); 3269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (map_entry_size == 4) 3279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Pad colormap with zeros to ensure specified number of colormap entries */ 3319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (i > map_colors) 3329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT1(cinfo, JERR_TOO_MANY_COLORS, i); 3339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (; i < map_colors; i++) { 3349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (map_entry_size == 4) 3389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(0, outfile); 3399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 3419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3439f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectMETHODDEF(void) 3449f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectfinish_output_bmp (j_decompress_ptr cinfo, djpeg_dest_ptr dinfo) 3459f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 3469f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmp_dest_ptr dest = (bmp_dest_ptr) dinfo; 3479f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register FILE * outfile = dest->pub.output_file; 3489f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JSAMPARRAY image_ptr; 3499f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JSAMPROW data_ptr; 3509f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION row; 3519f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project register JDIMENSION col; 3529f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; 3539f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3549f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Write the header and colormap */ 3559f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (dest->is_os2) 3569f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project write_os2_header(cinfo, dest); 3579f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project else 3589f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project write_bmp_header(cinfo, dest); 3599f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3609f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Write the file body from our virtual array */ 3619f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (row = cinfo->output_height; row > 0; row--) { 3629f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) { 3639f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_counter = (long) (cinfo->output_height - row); 3649f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->pub.pass_limit = (long) cinfo->output_height; 3659f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*progress->pub.progress_monitor) ((j_common_ptr) cinfo); 3669f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3679f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project image_ptr = (*cinfo->mem->access_virt_sarray) 3689f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, dest->whole_image, row-1, (JDIMENSION) 1, FALSE); 3699f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project data_ptr = image_ptr[0]; 3709f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project for (col = dest->row_width; col > 0; col--) { 3719f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project putc(GETJSAMPLE(*data_ptr), outfile); 3729f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project data_ptr++; 3739f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3749f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 3759f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (progress != NULL) 3769f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->completed_extra_passes++; 3779f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3789f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Make sure we wrote the output file OK */ 3799f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project fflush(outfile); 3809f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (ferror(outfile)) 3819f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_FILE_WRITE); 3829f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 3839f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3849f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3859f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project/* 3869f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project * The module selection routine for BMP format output. 3879f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project */ 3889f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3899f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source ProjectGLOBAL(djpeg_dest_ptr) 3909f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Projectjinit_write_bmp (j_decompress_ptr cinfo, boolean is_os2) 3919f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project{ 3929f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project bmp_dest_ptr dest; 3939f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project JDIMENSION row_width; 3949f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 3959f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Create module interface object, fill in method pointers */ 3969f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest = (bmp_dest_ptr) 3979f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, 3989f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project SIZEOF(bmp_dest_struct)); 3999f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.start_output = start_output_bmp; 4009f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.finish_output = finish_output_bmp; 4019f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->is_os2 = is_os2; 4029f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4039f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->out_color_space == JCS_GRAYSCALE) { 4049f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.put_pixel_rows = put_gray_rows; 4059f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else if (cinfo->out_color_space == JCS_RGB) { 4069f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->quantize_colors) 4079f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.put_pixel_rows = put_gray_rows; 4089f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project else 4099f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.put_pixel_rows = put_pixel_rows; 4109f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } else { 4119f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ERREXIT(cinfo, JERR_BMP_COLORSPACE); 4129f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 4139f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4149f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Calculate output image dimensions so we can allocate space */ 4159f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project jpeg_calc_output_dimensions(cinfo); 4169f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4179f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Determine width of rows in the BMP file (padded to 4-byte boundary). */ 4189f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project row_width = cinfo->output_width * cinfo->output_components; 4199f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->data_width = row_width; 4209f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project while ((row_width & 3) != 0) row_width++; 4219f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->row_width = row_width; 4229f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pad_bytes = (int) (row_width - dest->data_width); 4239f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4249f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Allocate space for inversion array, prepare for write pass */ 4259f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->whole_image = (*cinfo->mem->request_virt_sarray) 4269f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, JPOOL_IMAGE, FALSE, 4279f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project row_width, cinfo->output_height, (JDIMENSION) 1); 4289f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->cur_output_row = 0; 4299f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project if (cinfo->progress != NULL) { 4309f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress; 4319f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project progress->total_extra_passes++; /* count file input as separate pass */ 4329f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project } 4339f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4349f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project /* Create decompressor output buffer. */ 4359f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.buffer = (*cinfo->mem->alloc_sarray) 4369f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project ((j_common_ptr) cinfo, JPOOL_IMAGE, row_width, (JDIMENSION) 1); 4379f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project dest->pub.buffer_height = 1; 4389f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4399f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project return (djpeg_dest_ptr) dest; 4409f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project} 4419f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project 4429f5d49a1588e438ae7ceabd0c94172117e3303aaThe Android Open Source Project#endif /* BMP_SUPPORTED */ 443