dib.c revision 8a46d827a124555f0c48fb2368ec1bba8e079ab6
13ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 23ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 33ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 43ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 53ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 63ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% DDDD IIIII BBBB % 73ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% D D I B B % 83ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% D D I BBBB % 93ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% D D I B B % 103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% DDDD IIIII BBBB % 113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Read/Write Windows DIB Image Format % 143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Software Design % 163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% John Cristy % 173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% July 1992 % 183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 201454be7db7a897f42cd40e4165f945d77196a6f8cristy% Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization % 213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% dedicated to making software imaging solutions freely available. % 223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% You may not use this file except in compliance with the License. You may % 243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% obtain a copy of the License at % 253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% http://www.imagemagick.org/script/license.php % 273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% Unless required by applicable law or agreed to in writing, software % 293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% distributed under the License is distributed on an "AS IS" BASIS, % 303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % 313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% See the License for the specific language governing permissions and % 323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% limitations under the License. % 333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Include declarations. 413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 424c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/studio.h" 434c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/attribute.h" 444c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/blob.h" 454c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/blob-private.h" 464c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/cache.h" 474c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/color.h" 484c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/color-private.h" 494c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/colormap.h" 504c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/colormap-private.h" 514c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/colorspace.h" 52510d06a3f7063e91993e13d546d5685048248074cristy#include "MagickCore/colorspace-private.h" 534c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/draw.h" 544c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/exception.h" 554c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/exception-private.h" 564c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/geometry.h" 574c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/image.h" 584c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/image-private.h" 594c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/list.h" 604c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/log.h" 614c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/magick.h" 624c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/memory_.h" 634c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/monitor.h" 644c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/monitor-private.h" 654c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/pixel-accessor.h" 664c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/quantum-private.h" 674c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/static.h" 684c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/string_.h" 694c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/module.h" 704c08aed51c5899665ade97263692328eea4af106cristy#include "MagickCore/transform.h" 713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Typedef declarations. 743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 753ed852eea50f9d4cd633efb8c2b054b8e33c253cristytypedef struct _DIBInfo 763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 77f6fe0a138e6b5879b6c11a27d715412479acf128cristy size_t 783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size; 793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 80f6fe0a138e6b5879b6c11a27d715412479acf128cristy ssize_t 813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy width, 823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy height; 833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy planes, 863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bits_per_pixel; 873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 88f6fe0a138e6b5879b6c11a27d715412479acf128cristy size_t 893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy compression, 903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_size, 913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x_pixels, 923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y_pixels, 933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy number_colors, 943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red_mask, 953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green_mask, 963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue_mask, 973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy alpha_mask, 983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colors_important; 993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 100f6fe0a138e6b5879b6c11a27d715412479acf128cristy ssize_t 1013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy colorspace; 1023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy PointInfo 1043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy red_primary, 1053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy green_primary, 1063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy blue_primary, 1073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy gamma_scale; 1083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} DIBInfo; 1093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Forward declarations. 1123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1133ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType 1141e178e70fb3c956f9fc1e30c3ba863e882666465cristy WriteDIBImage(const ImageInfo *,Image *,ExceptionInfo *); 1153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 1173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 1183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% D e c o d e I m a g e % 1223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 1253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 1263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% DecodeImage unpacks the packed image pixels into runlength-encoded 1283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pixel packets. 1293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the DecodeImage method is: 1313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType DecodeImage(Image *image, 1333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% const MagickBooleanType compression,unsigned char *pixels) 1343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 1363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: the address of a structure of type Image. 1383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o compression: A value of 1 means the compressed pixels are runlength 1403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% encoded for a 256-color bitmap. A value of 2 means a 16-color bitmap. 1413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pixels: The address of a byte (8 bits) array of pixel data created by 1433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the decoding process. 1443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 1453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline size_t MagickMin(const size_t x,const size_t y) 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < y) 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1543ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType DecodeImage(Image *image, 1553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const MagickBooleanType compression,unsigned char *pixels) 1563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 1570157aeadef2fce908277168097a160a8f15a6952cristy#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__) 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RGB 0 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RLE8 1 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RLE4 2 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_BITFIELDS 3 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 1663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 167bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 170bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte; 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(pixels != (unsigned char *) NULL); 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(pixels,0,(size_t) image->columns*image->rows* 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*pixels)); 1883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels; 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(size_t) image->columns*image->rows; 192bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; ) 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p < pixels) || (p >= q)) 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlobByte(image); 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == EOF) 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != 0) 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(int) MagickMin((size_t) count,(size_t) (q-p)); 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Encoded mode. 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=(unsigned char) ReadBlobByte(image); 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) byte; 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=count; 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Escape mode. 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlobByte(image); 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0x01) 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (count) 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 0x00: 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of line. 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y++; 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+y*image->columns; 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 0x02: 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Delta mode. 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=ReadBlobByte(image); 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y+=ReadBlobByte(image); 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+y*image->columns+x; 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Absolute mode. 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(int) MagickMin((size_t) count,(size_t) (q-p)); 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) ReadBlobByte(image); 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((i & 0x01) == 0) 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=(unsigned char) ReadBlobByte(image); 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=count; 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read pad byte. 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((count & 0x01) != 0) 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (((count & 0x03) == 1) || ((count & 0x03) == 2)) 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse) 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); /* end of line */ 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% E n c o d e I m a g e % 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% EncodeImage compresses pixels using a runlength encoded format. 3023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the EncodeImage method is: 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% static MagickBooleanType EncodeImage(Image *image, 306bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% const size_t bytes_per_line,const unsigned char *pixels, 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned char *compressed_pixels) 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bytes_per_line: the number of bytes in a scanline of compressed pixels 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pixels: The address of a byte (8 bits) array of pixel data created by 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the compression process. 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o compressed_pixels: The address of a byte (8 bits) array of compressed 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pixel data. 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 322bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t EncodeImage(Image *image,const size_t bytes_per_line, 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const unsigned char *pixels,unsigned char *compressed_pixels) 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 325bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 3273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const unsigned char 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 331bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Runlength encode pixels. 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(pixels != (const unsigned char *) NULL); 3463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(compressed_pixels != (unsigned char *) NULL); 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels; 3483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=compressed_pixels; 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 350bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 352bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) bytes_per_line; x+=i) 3533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine runlength. 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 357bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=1; ((x+i) < (ssize_t) bytes_per_line); i++) 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((*(p+i) != *p) || (i == 255)) 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char) i; 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(*p); 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=i; 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of line. 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse) 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of bitmap. 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0; 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x01; 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) (q-compressed_pixels)); 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s D I B % 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsDIB() returns MagickTrue if the image format type, identified by the 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is DIB. 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsDIB method is: 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsDIB(const unsigned char *magick,const size_t length) 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsDIB(const unsigned char *magick,const size_t length) 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 2) 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\050\000",2) == 0) 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d D I B I m a g e % 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadDIBImage() reads a Microsoft Windows bitmap image file and 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% returns it. It allocates the memory necessary for the new Image structure 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and returns a pointer to the new image. 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadDIBImage method is: 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image=ReadDIBImage(image_info) 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 441bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic inline ssize_t MagickAbsoluteValue(const ssize_t x) 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x < 0) 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(-x); 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4483ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic inline size_t MagickMax(const size_t x,const size_t y) 4493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (x > y) 4513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(x); 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(y); 4533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadDIBImage(const ImageInfo *image_info,ExceptionInfo *exception) 4563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DIBInfo 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info; 4593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4664c08aed51c5899665ade97263692328eea4af106cristy Quantum 4674c08aed51c5899665ade97263692328eea4af106cristy index; 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 469bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 4703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 4713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4724c08aed51c5899665ade97263692328eea4af106cristy register Quantum 4733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 475bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 482ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy bytes_per_line, 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 4864c08aed51c5899665ade97263692328eea4af106cristy bit, 4874c08aed51c5899665ade97263692328eea4af106cristy count, 4884c08aed51c5899665ade97263692328eea4af106cristy y; 4894c08aed51c5899665ade97263692328eea4af106cristy 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 5003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception->signature == MagickSignature); 5049950d57e1124b73f684fb5946e206994cefda628cristy image=AcquireImage(image_info,exception); 5053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 5063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 5093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 5103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if this a DIB file. 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(&dib_info,0,sizeof(dib_info)); 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.size=ReadBlobLSBLong(image); 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.size!=40) 5173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 5183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Microsoft Windows 3.X DIB image file. 5203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.width=(short) ReadBlobLSBLong(image); 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.height=(short) ReadBlobLSBLong(image); 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.planes=ReadBlobLSBShort(image); 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=ReadBlobLSBShort(image); 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.compression=ReadBlobLSBLong(image); 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.image_size=ReadBlobLSBLong(image); 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.x_pixels=ReadBlobLSBLong(image); 5283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.y_pixels=ReadBlobLSBLong(image); 5293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=ReadBlobLSBLong(image); 5303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.colors_important=ReadBlobLSBLong(image); 5313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_BITFIELDS) && 5323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((dib_info.bits_per_pixel == 16) || (dib_info.bits_per_pixel == 32))) 5333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.red_mask=ReadBlobLSBLong(image); 5353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.green_mask=ReadBlobLSBLong(image); 5363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.blue_mask=ReadBlobLSBLong(image); 5373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5388a46d827a124555f0c48fb2368ec1bba8e079ab6cristy image->alpha_trait=dib_info.bits_per_pixel == 32 ? MagickTrue : MagickFalse; 539bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->columns=(size_t) MagickAbsoluteValue(dib_info.width); 540bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->rows=(size_t) MagickAbsoluteValue(dib_info.height); 5413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 5423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.number_colors != 0) || (dib_info.bits_per_pixel < 16)) 5433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 544eaedf06777741da32408da72c1e512975c600c48cristy size_t 545eaedf06777741da32408da72c1e512975c600c48cristy one; 546eaedf06777741da32408da72c1e512975c600c48cristy 5473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 5483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=dib_info.number_colors; 549eaedf06777741da32408da72c1e512975c600c48cristy one=1; 5503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors == 0) 551eaedf06777741da32408da72c1e512975c600c48cristy image->colors=one << dib_info.bits_per_pixel; 5523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->size) 5543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 5563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy geometry; 5573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickStatusType 5593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flags; 5603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flags=ParseAbsoluteGeometry(image_info->size,&geometry); 5623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (flags & WidthValue) 5633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((geometry.width != 0) && (geometry.width < image->columns)) 5643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=geometry.width; 5653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (flags & HeightValue) 5663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((geometry.height != 0) && (geometry.height < image->rows)) 5673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=geometry.height; 5683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 5723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 5733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_size; 5743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_colormap; 5773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DIB raster colormap. 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 581018f07f7333b25743d0afff892450cebdb905c1acristy if (AcquireImageColormap(image,image->colors,exception) == MagickFalse) 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->colors; 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) AcquireQuantumMemory(length, 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4*sizeof(*dib_colormap)); 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_colormap == (unsigned char *) NULL) 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_size=4; 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,packet_size*image->colors,dib_colormap); 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != (ssize_t) (packet_size*image->colors)) 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=dib_colormap; 593bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(*p++); 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(*p++); 5973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(*p++); 5983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (packet_size == 4) 5993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) RelinquishMagickMemory(dib_colormap); 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image data. 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.compression == BI_RLE4) 6073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel<<=1; 6083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=4*((image->columns*dib_info.bits_per_pixel+31)/32); 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=bytes_per_line*image->rows; 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) AcquireQuantumMemory((size_t) image->rows, 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickMax(bytes_per_line,image->columns+256UL)*sizeof(*pixels)); 6123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (pixels == (unsigned char *) NULL) 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_RGB) || 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_BITFIELDS)) 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,length,pixels); 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != (ssize_t) (length)) 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert run-length encoded raster pixels. 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=DecodeImage(image,dib_info.compression ? MagickTrue : MagickFalse, 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels); 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"UnableToRunlengthDecodeImage"); 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 6352a11befa48257796843468409d77bb8cfb129cdccristy image->resolution.x=(double) dib_info.x_pixels/100.0; 6362a11befa48257796843468409d77bb8cfb129cdccristy image->resolution.y=(double) dib_info.y_pixels/100.0; 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DIB raster image to pixel packets. 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (dib_info.bits_per_pixel) 6413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 6433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert bitmap scanline. 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 647bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 651acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 653bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < ((ssize_t) image->columns-7); x+=8) 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=0; bit < 8; bit++) 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6574c08aed51c5899665ade97263692328eea4af106cristy index=(Quantum) ((*p) & (0x80 >> bit) ? 0x01 : 0x00); 6584c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 659ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 665bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=0; bit < (ssize_t) (image->columns % 8); bit++) 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6674c08aed51c5899665ade97263692328eea4af106cristy index=(Quantum) ((*p) & (0x80 >> bit) ? 0x01 : 0x00); 6684c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 669ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 6793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 683ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 6853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 6903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 691bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 695acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 697bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < ((ssize_t) image->columns-1); x+=2) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 699c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,(*p >> 4) & 0xf,exception); 7004c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 701ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 702c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,*p & 0xf,exception); 7034c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 705ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 709c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,(*p >> 4) & 0xf,exception); 7104c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 711ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 724ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 7313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_RLE8) || 7333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_RLE4)) 7343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=image->columns; 735bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 739acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 741bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 7423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 743c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,*p,exception); 7444c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 746ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 758ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word; 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.compression == BI_RLE8) 7713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=2*image->columns; 772bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 7733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 7753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 776acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 778bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word=(*p++); 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word|=(*p++ << 8); 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.red_mask == 0) 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7844c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(ScaleColor5to8( 7854c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 10) & 0x1f))),q); 7864c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(ScaleColor5to8( 7874c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 5) & 0x1f))),q); 7884c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(ScaleColor5to8( 7894c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) (word & 0x1f))),q); 7903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7934c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(ScaleColor5to8( 7944c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 11) & 0x1f))),q); 7954c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(ScaleColor6to8( 7964c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 5) & 0x3f))),q); 7974c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(ScaleColor5to8( 7984c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) (word & 0x1f))),q); 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 800ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 8083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 24: 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 32: 8163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 8183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DirectColor scanline. 8193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 820bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 8213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 824acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 8253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 826bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 8273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8284c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(*p++),q); 8294c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(*p++),q); 8304c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(*p++),q); 8318a46d827a124555f0c48fb2368ec1bba8e079ab6cristy if (image->alpha_trait == BlendPixelTrait) 8324c08aed51c5899665ade97263692328eea4af106cristy SetPixelAlpha(image,ScaleCharToQuantum(*p++),q); 833ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (EOFBlob(image) != MagickFalse) 8523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.height < 0) 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *flipped_image; 8583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 8603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Correct image orientation. 8613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 8623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flipped_image=FlipImage(image,exception); 863bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy if (flipped_image != (Image *) NULL) 8643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 865bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy DuplicateBlob(flipped_image,image); 866bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy image=DestroyImage(image); 867bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy image=flipped_image; 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r D I B I m a g e % 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterDIBImage() adds attributes for the DIB image format to 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The attributes include the image format 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterDIBImage method is: 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 894bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterDIBImage(void) 8953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 897bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterDIBImage(void) 8983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 8993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry=SetMagickInfo("DIB"); 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadDIBImage; 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteDIBImage; 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsDIB; 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->adjoin=MagickFalse; 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->stealth=MagickTrue; 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->description=ConstantString( 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy "Microsoft Windows 3.X Packed Device-Independent Bitmap"); 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->module=ConstantString("DIB"); 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r D I B I m a g e % 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterDIBImage() removes format registrations made by the 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% DIB module from the list of supported formats. 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterDIBImage method is: 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterDIBImage(void) 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9343ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterDIBImage(void) 9353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("DIB"); 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e D I B I m a g e % 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteDIBImage() writes an image in Microsoft Windows bitmap encoded 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image format. 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteDIBImage method is: 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9551e178e70fb3c956f9fc1e30c3ba863e882666465cristy% MagickBooleanType WriteDIBImage(const ImageInfo *image_info, 9561e178e70fb3c956f9fc1e30c3ba863e882666465cristy% Image *image,ExceptionInfo *exception) 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9641e178e70fb3c956f9fc1e30c3ba863e882666465cristy% o exception: return any errors or warnings in this structure. 9651e178e70fb3c956f9fc1e30c3ba863e882666465cristy% 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9671e178e70fb3c956f9fc1e30c3ba863e882666465cristystatic MagickBooleanType WriteDIBImage(const ImageInfo *image_info,Image *image, 9681e178e70fb3c956f9fc1e30c3ba863e882666465cristy ExceptionInfo *exception) 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DIBInfo 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info; 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9764c08aed51c5899665ade97263692328eea4af106cristy register const Quantum 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 979bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 9853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 986ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy size_t 987ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy bytes_per_line; 988ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy 989ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy ssize_t 990ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy y; 991ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_data, 9943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 9953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 9973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open output image file. 9983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info->signature == MagickSignature); 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image->signature == MagickSignature); 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 10053a37efd7ece979e9c63dc8f2f2d3816bab8b1156cristy assert(exception != (ExceptionInfo *) NULL); 10063a37efd7ece979e9c63dc8f2f2d3816bab8b1156cristy assert(exception->signature == MagickSignature); 10071e178e70fb3c956f9fc1e30c3ba863e882666465cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 10093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize DIB raster file header. 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10133d9f5ba107b160e1819bb6baeeb3a9f521e9f450cristy if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse) 10148d95109eca7aee289423a1ee81c232e309b383aecristy (void) TransformImageColorspace(image,sRGBColorspace,exception); 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 10163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Full color DIB raster. 10193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=0; 10218a46d827a124555f0c48fb2368ec1bba8e079ab6cristy dib_info.bits_per_pixel=(unsigned short) (image->alpha_trait ? 32 : 24); 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Colormapped DIB raster. 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=8; 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->depth > 8) 10303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=16; 10311e178e70fb3c956f9fc1e30c3ba863e882666465cristy if (IsImageMonochrome(image,exception) != MagickFalse) 10323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=1; 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=(dib_info.bits_per_pixel == 16) ? 0 : 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (1UL << dib_info.bits_per_pixel); 10353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=4*((image->columns*dib_info.bits_per_pixel+31)/32); 10373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.size=40; 1038bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.width=(ssize_t) image->columns; 1039bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.height=(ssize_t) image->rows; 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.planes=1; 1041bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.compression=(size_t) (dib_info.bits_per_pixel == 16 ? 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy BI_BITFIELDS : BI_RGB); 10433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.image_size=bytes_per_line*image->rows; 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.x_pixels=75*39; 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.y_pixels=75*39; 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (image->units) 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case UndefinedResolution: 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case PixelsPerInchResolution: 10503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10512a11befa48257796843468409d77bb8cfb129cdccristy dib_info.x_pixels=(size_t) (100.0*image->resolution.x/2.54); 10522a11befa48257796843468409d77bb8cfb129cdccristy dib_info.y_pixels=(size_t) (100.0*image->resolution.y/2.54); 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case PixelsPerCentimeterResolution: 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10572a11befa48257796843468409d77bb8cfb129cdccristy dib_info.x_pixels=(size_t) (100.0*image->resolution.x); 10582a11befa48257796843468409d77bb8cfb129cdccristy dib_info.y_pixels=(size_t) (100.0*image->resolution.y); 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 10603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.colors_important=dib_info.number_colors; 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert MIFF to DIB raster pixels. 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) AcquireQuantumMemory(dib_info.image_size, 10673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*pixels)); 10683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (pixels == (unsigned char *) NULL) 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 10703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(pixels,0,dib_info.image_size); 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (dib_info.bits_per_pixel) 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit, 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte; 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a DIB monochrome image. 10813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1082bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10841e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 10854c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 10863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 10873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit=0; 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 1090bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte<<=1; 10934c08aed51c5899665ade97263692328eea4af106cristy byte|=GetPixelIndex(image,p) != 0 ? 0x01 : 0x00; 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit++; 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (bit == 8) 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=byte; 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit=0; 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1101ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (bit != 0) 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char) (byte << (8-bit)); 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x++; 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1108bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns+7)/8; x < (ssize_t) bytes_per_line; x++) 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1110cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1111ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 11133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass packet to DIB pixel. 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1122bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11241e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11254c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1128bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11294c08aed51c5899665ade97263692328eea4af106cristy { 11304c08aed51c5899665ade97263692328eea4af106cristy *q++=(unsigned char) GetPixelIndex(image,p); 1131ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11324c08aed51c5899665ade97263692328eea4af106cristy } 1133bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for ( ; x < (ssize_t) bytes_per_line; x++) 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1135cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1136ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word; 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass packet to DIB pixel. 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1149bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11511e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11524c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1155bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word=(unsigned short) ((ScaleColor8to5((unsigned char) 11584c08aed51c5899665ade97263692328eea4af106cristy ScaleQuantumToChar(GetPixelRed(image,p))) << 11) | (ScaleColor8to6( 11594c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ScaleQuantumToChar(GetPixelGreen(image,p))) << 5) | 11604c08aed51c5899665ade97263692328eea4af106cristy (ScaleColor8to5((unsigned char) ScaleQuantumToChar((unsigned char) 11614c08aed51c5899665ade97263692328eea4af106cristy GetPixelBlue(image,p)) << 0))); 11623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char)(word & 0xff); 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char)(word >> 8); 1164ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1166f6fe0a138e6b5879b6c11a27d715412479acf128cristy for (x=(ssize_t) (2*image->columns); x < (ssize_t) bytes_per_line; x++) 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1168cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1169ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 24: 11763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 32: 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DirectClass packet to DIB RGB pixel. 11803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1181bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11831e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11844c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1187bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11894c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); 11904c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); 11914c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelRed(image,p)); 11928a46d827a124555f0c48fb2368ec1bba8e079ab6cristy if (image->alpha_trait == BlendPixelTrait) 11934c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelAlpha(image,p)); 1194ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel == 24) 1197f6fe0a138e6b5879b6c11a27d715412479acf128cristy for (x=(ssize_t) (3*image->columns); x < (ssize_t) bytes_per_line; x++) 11983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1199cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1200ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel == 8) 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression != NoCompression) 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 12123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert run-length encoded raster pixels. 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=2UL*(bytes_per_line+2UL)+2UL; 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_data=(unsigned char *) AcquireQuantumMemory(length, 12183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->rows+2UL)*sizeof(*dib_data)); 12193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (pixels == (unsigned char *) NULL) 12203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 12223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 12233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1224bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.image_size=(size_t) EncodeImage(image,bytes_per_line, 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels,dib_data); 12263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=dib_data; 12283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.compression = BI_RLE8; 12293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write DIB header. 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1233f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.size); 1234eaedf06777741da32408da72c1e512975c600c48cristy (void) WriteBlobLSBLong(image,dib_info.width); 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,(unsigned short) dib_info.height); 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBShort(image,(unsigned short) dib_info.planes); 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBShort(image,dib_info.bits_per_pixel); 1238f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.compression); 1239f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.image_size); 1240f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.x_pixels); 1241f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.y_pixels); 1242f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.number_colors); 1243f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.colors_important); 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel <= 8) 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_colormap; 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Dump colormap to file. 12533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) AcquireQuantumMemory((size_t) 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (1UL << dib_info.bits_per_pixel),4*sizeof(dib_colormap)); 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_colormap == (unsigned char *) NULL) 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=dib_colormap; 1259bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMin(image->colors,dib_info.number_colors); i++) 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].blue); 12623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].green); 12633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].red); 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1266bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for ( ; i < (ssize_t) (1L << dib_info.bits_per_pixel); i++) 12673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) (4*(1 << dib_info.bits_per_pixel)), 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap); 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) RelinquishMagickMemory(dib_colormap); 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.bits_per_pixel == 16) && 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_BITFIELDS)) 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0xf800); 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0x07e0); 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0x001f); 12843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,dib_info.image_size,pixels); 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 12883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1291