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 % 16de984cdc3631106b1cbbb8d3972b76a0fc27e8e8cristy% Cristy % 173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% July 1992 % 183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 207ce65e7125a4e1df1a274ce373c537a9df9c16cdCristy% Copyright 1999-2016 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*/ 1463ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType DecodeImage(Image *image, 1473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const MagickBooleanType compression,unsigned char *pixels) 1483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 14907a3cca00593c795eb8e0427f5bc4c2bcad3f0fbcristy#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__) || defined(__MINGW64__) 1503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RGB 0 1513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RLE8 1 1523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_RLE4 2 1533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#define BI_BITFIELDS 3 154f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy#undef BI_JPEG 155f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy#define BI_JPEG 4 156f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy#undef BI_PNG 157f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy#define BI_PNG 5 1583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy#endif 1593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy int 1613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count; 1623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 163bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 1643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 1653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 166bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 1673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 1683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 1693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 1713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p, 1723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 1733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 1753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte; 1763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 178e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(image->signature == MagickCoreSignature); 1793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 1803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 1813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(pixels != (unsigned char *) NULL); 1823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(pixels,0,(size_t) image->columns*image->rows* 1833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*pixels)); 1843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 1853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 1863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels; 1873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(size_t) image->columns*image->rows; 188bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; ) 1893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((p < pixels) || (p >= q)) 1913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 1923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlobByte(image); 1933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == EOF) 1943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 1953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != 0) 1963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 1973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(int) MagickMin((size_t) count,(size_t) (q-p)); 1983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Encoded mode. 2003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=(unsigned char) ReadBlobByte(image); 2023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) byte; 2063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) 2113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); 2123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=count; 2143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Escape mode. 2193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlobByte(image); 2213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count == 0x01) 2223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 2233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (count) 2243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 0x00: 2263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of line. 2293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x=0; 2313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y++; 2323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+y*image->columns; 2333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 0x02: 2363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Delta mode. 2393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=ReadBlobByte(image); 2413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y+=ReadBlobByte(image); 2423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+y*image->columns+x; 2433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 2463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Absolute mode. 2493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=(int) MagickMin((size_t) count,(size_t) (q-p)); 2513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) ReadBlobByte(image); 2543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (i=0; i < count; i++) 2563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((i & 0x01) == 0) 2583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=(unsigned char) ReadBlobByte(image); 2593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p++=(unsigned char) 2603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((i & 0x01) != 0 ? (byte & 0x0f) : ((byte >> 4) & 0x0f)); 2613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x+=count; 2633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 2643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read pad byte. 2653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 2663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (compression == BI_RLE8) 2673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 2683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((count & 0x01) != 0) 2693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 2723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (((count & 0x03) == 1) || ((count & 0x03) == 2)) 2733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse) 2793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 2803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 2813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); /* end of line */ 2823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ReadBlobByte(image); 2833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 2843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 2853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 2863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 2873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% E n c o d e I m a g e % 2923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 2953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 2973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% EncodeImage compresses pixels using a runlength encoded format. 2983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 2993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the EncodeImage method is: 3003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% static MagickBooleanType EncodeImage(Image *image, 302bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% const size_t bytes_per_line,const unsigned char *pixels, 3033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% unsigned char *compressed_pixels) 3043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 3063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 3083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o bytes_per_line: the number of bytes in a scanline of compressed pixels 3103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o pixels: The address of a byte (8 bits) array of pixel data created by 3123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the compression process. 3133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o compressed_pixels: The address of a byte (8 bits) array of compressed 3153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% pixel data. 3163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 318bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristystatic size_t EncodeImage(Image *image,const size_t bytes_per_line, 3193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy const unsigned char *pixels,unsigned char *compressed_pixels) 3203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 321bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy ssize_t 3223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy y; 3233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register const unsigned char 3253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 3263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 327bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 3283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 3293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 3303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 3323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 3333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Runlength encode pixels. 3363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 338e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(image->signature == MagickCoreSignature); 3393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 3403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 3413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(pixels != (const unsigned char *) NULL); 3423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(compressed_pixels != (unsigned char *) NULL); 3433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels; 3443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=compressed_pixels; 3453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i=0; 346bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 3473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 348bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) bytes_per_line; x+=i) 3493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 3503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine runlength. 3523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 353bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=1; ((x+i) < (ssize_t) bytes_per_line); i++) 3543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((*(p+i) != *p) || (i == 255)) 3553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 3563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char) i; 3573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(*p); 3583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p+=i; 3593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 3603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of line. 3623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 3643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 3653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse) 3663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 3673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 3683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 3693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy End of bitmap. 3703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 3713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0; 3723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x01; 3733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((size_t) (q-compressed_pixels)); 3743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 3753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 3763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 3773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% I s D I B % 3823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 3853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% IsDIB() returns MagickTrue if the image format type, identified by the 3883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% magick string, is DIB. 3893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the IsDIB method is: 3913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% MagickBooleanType IsDIB(const unsigned char *magick,const size_t length) 3933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 3953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o magick: compare image format pattern against these bytes. 3973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 3983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o length: Specifies the length of the magick string. 3993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4013ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic MagickBooleanType IsDIB(const unsigned char *magick,const size_t length) 4023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (length < 2) 4043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 4053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (memcmp(magick,"\050\000",2) == 0) 4063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 4073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickFalse); 4083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 4093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 4113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e a d D I B I m a g e % 4163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 4193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 4203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% ReadDIBImage() reads a Microsoft Windows bitmap image file and 4223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% returns it. It allocates the memory necessary for the new Image structure 4233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% and returns a pointer to the new image. 4243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the ReadDIBImage method is: 4263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image=ReadDIBImage(image_info) 4283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows: 4303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 4323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o exception: return any errors or warnings in this structure. 4343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 4353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 4363ed852eea50f9d4cd633efb8c2b054b8e33c253cristystatic Image *ReadDIBImage(const ImageInfo *image_info,ExceptionInfo *exception) 4373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 4383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DIBInfo 4393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info; 4403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 4423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *image; 4433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 4453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 4463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4470553bd5babdbdf65b95f91ed401c98fead17ab54cristy MemoryInfo 4480553bd5babdbdf65b95f91ed401c98fead17ab54cristy *pixel_info; 4490553bd5babdbdf65b95f91ed401c98fead17ab54cristy 4504c08aed51c5899665ade97263692328eea4af106cristy Quantum 4514c08aed51c5899665ade97263692328eea4af106cristy index; 4523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 453bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 4543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 4553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4564c08aed51c5899665ade97263692328eea4af106cristy register Quantum 4573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 4583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 459bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 4603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i; 4613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 4633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 4643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 466ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy bytes_per_line, 4673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 4683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ssize_t 4704c08aed51c5899665ade97263692328eea4af106cristy bit, 4714c08aed51c5899665ade97263692328eea4af106cristy count, 4724c08aed51c5899665ade97263692328eea4af106cristy y; 4734c08aed51c5899665ade97263692328eea4af106cristy 4743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 4763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 4773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 4793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open image file. 4803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 4813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 482e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(image_info->signature == MagickCoreSignature); 4833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->debug != MagickFalse) 4843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 4853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image_info->filename); 4863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(exception != (ExceptionInfo *) NULL); 487e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(exception->signature == MagickCoreSignature); 4889950d57e1124b73f684fb5946e206994cefda628cristy image=AcquireImage(image_info,exception); 4893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 4903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 4913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 4923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image=DestroyImageList(image); 4933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return((Image *) NULL); 4943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 4953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 4963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Determine if this a DIB file. 4973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 4983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(&dib_info,0,sizeof(dib_info)); 4993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.size=ReadBlobLSBLong(image); 500acabb847a592ca5e430c1c0949d03acfc0b78bb9cristy if (dib_info.size != 40) 5013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 5023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 5033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Microsoft Windows 3.X DIB image file. 5043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 5053e6c553104a29840ba23379ab2dceaca44ac9e79Cristy dib_info.width=ReadBlobLSBSignedLong(image); 5063e6c553104a29840ba23379ab2dceaca44ac9e79Cristy dib_info.height=ReadBlobLSBSignedLong(image); 5073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.planes=ReadBlobLSBShort(image); 5083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=ReadBlobLSBShort(image); 509f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if (dib_info.bits_per_pixel > 32) 510f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 5113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.compression=ReadBlobLSBLong(image); 5123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.image_size=ReadBlobLSBLong(image); 5133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.x_pixels=ReadBlobLSBLong(image); 5143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.y_pixels=ReadBlobLSBLong(image); 5153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=ReadBlobLSBLong(image); 5163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.colors_important=ReadBlobLSBLong(image); 517ca793d76191054d3659644139269c742c44bcab7cristy if ((dib_info.bits_per_pixel != 1) && (dib_info.bits_per_pixel != 4) && 518ca793d76191054d3659644139269c742c44bcab7cristy (dib_info.bits_per_pixel != 8) && (dib_info.bits_per_pixel != 16) && 519ca793d76191054d3659644139269c742c44bcab7cristy (dib_info.bits_per_pixel != 24) && (dib_info.bits_per_pixel != 32)) 520ca793d76191054d3659644139269c742c44bcab7cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 5213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_BITFIELDS) && 5223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ((dib_info.bits_per_pixel == 16) || (dib_info.bits_per_pixel == 32))) 5233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.red_mask=ReadBlobLSBLong(image); 5253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.green_mask=ReadBlobLSBLong(image); 5263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.blue_mask=ReadBlobLSBLong(image); 5273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 528ca793d76191054d3659644139269c742c44bcab7cristy if (EOFBlob(image) != MagickFalse) 529ca793d76191054d3659644139269c742c44bcab7cristy ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile"); 530f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if (dib_info.width <= 0) 531f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); 532f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if (dib_info.height == 0) 533f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize"); 534f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if (dib_info.planes != 1) 535f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"StaticPlanesValueNotEqualToOne"); 536f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if ((dib_info.bits_per_pixel != 1) && (dib_info.bits_per_pixel != 4) && 537f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy (dib_info.bits_per_pixel != 8) && (dib_info.bits_per_pixel != 16) && 538f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy (dib_info.bits_per_pixel != 24) && (dib_info.bits_per_pixel != 32)) 539f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); 540f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if (dib_info.bits_per_pixel < 16 && 5411678aec3bf3630d92b415d39a58f049c16ac055cdirk dib_info.number_colors > (size_t) (1UL << dib_info.bits_per_pixel)) 542f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedNumberOfColors"); 543f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if ((dib_info.compression == 1) && (dib_info.bits_per_pixel != 8)) 544f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); 545f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if ((dib_info.compression == 2) && (dib_info.bits_per_pixel != 4)) 546f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); 547f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy if ((dib_info.compression == 3) && (dib_info.bits_per_pixel < 16)) 548f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedBitsPerPixel"); 549f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy switch (dib_info.compression) 550f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy { 551f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_RGB: 552f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_RLE8: 553f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_RLE4: 554f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_BITFIELDS: 555f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy break; 556f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_JPEG: 557f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CoderError,"JPEGCompressNotSupported"); 558f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy case BI_PNG: 559f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CoderError,"PNGCompressNotSupported"); 560f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy default: 561f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression"); 562f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy } 563bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->columns=(size_t) MagickAbsoluteValue(dib_info.width); 564bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy image->rows=(size_t) MagickAbsoluteValue(dib_info.height); 5653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->depth=8; 566f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy image->alpha_trait=dib_info.bits_per_pixel == 32 ? BlendPixelTrait : 567f8dcd77f1fbba9b5f5b8e17cc4b0132919623808cristy UndefinedPixelTrait; 568ca793d76191054d3659644139269c742c44bcab7cristy if ((dib_info.number_colors > 256) || (dib_info.colors_important > 256)) 569ca793d76191054d3659644139269c742c44bcab7cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 5703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.number_colors != 0) || (dib_info.bits_per_pixel < 16)) 5713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 572eaedf06777741da32408da72c1e512975c600c48cristy size_t 573eaedf06777741da32408da72c1e512975c600c48cristy one; 574eaedf06777741da32408da72c1e512975c600c48cristy 5753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=PseudoClass; 5763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colors=dib_info.number_colors; 577eaedf06777741da32408da72c1e512975c600c48cristy one=1; 5783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->colors == 0) 579eaedf06777741da32408da72c1e512975c600c48cristy image->colors=one << dib_info.bits_per_pixel; 5803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 5813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->size) 5823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 5833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy RectangleInfo 5843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy geometry; 5853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickStatusType 5873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flags; 5883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 5893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flags=ParseAbsoluteGeometry(image_info->size,&geometry); 5903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (flags & WidthValue) 5913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((geometry.width != 0) && (geometry.width < image->columns)) 5923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->columns=geometry.width; 5933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (flags & HeightValue) 5943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((geometry.height != 0) && (geometry.height < image->rows)) 5953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows=geometry.height; 5963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 597acabb847a592ca5e430c1c0949d03acfc0b78bb9cristy status=SetImageExtent(image,image->columns,image->rows,exception); 598acabb847a592ca5e430c1c0949d03acfc0b78bb9cristy if (status == MagickFalse) 599acabb847a592ca5e430c1c0949d03acfc0b78bb9cristy return(DestroyImageList(image)); 6003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 6013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 6033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length, 6043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_size; 6053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 6073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_colormap; 6083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 6093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read DIB raster colormap. 6113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 612018f07f7333b25743d0afff892450cebdb905c1acristy if (AcquireImageColormap(image,image->colors,exception) == MagickFalse) 6133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 6143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=(size_t) image->colors; 6153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) AcquireQuantumMemory(length, 6163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 4*sizeof(*dib_colormap)); 6173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_colormap == (unsigned char *) NULL) 6183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 6193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy packet_size=4; 6203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,packet_size*image->colors,dib_colormap); 6213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != (ssize_t) (packet_size*image->colors)) 6223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); 6233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=dib_colormap; 624bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) image->colors; i++) 6253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].blue=ScaleCharToQuantum(*p++); 6273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].green=ScaleCharToQuantum(*p++); 6283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->colormap[i].red=ScaleCharToQuantum(*p++); 6293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (packet_size == 4) 6303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) RelinquishMagickMemory(dib_colormap); 6333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Read image data. 6363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.compression == BI_RLE4) 6383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel<<=1; 6393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=4*((image->columns*dib_info.bits_per_pixel+31)/32); 6403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=bytes_per_line*image->rows; 6410553bd5babdbdf65b95f91ed401c98fead17ab54cristy pixel_info=AcquireVirtualMemory((size_t) image->rows,MagickMax( 6420553bd5babdbdf65b95f91ed401c98fead17ab54cristy bytes_per_line,image->columns+256UL)*sizeof(*pixels)); 6430553bd5babdbdf65b95f91ed401c98fead17ab54cristy if (pixel_info == (MemoryInfo *) NULL) 6443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); 6450553bd5babdbdf65b95f91ed401c98fead17ab54cristy pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); 6463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_RGB) || 6473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_BITFIELDS)) 6483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy count=ReadBlob(image,length,pixels); 6503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (count != (ssize_t) (length)) 6513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); 6523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 6543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert run-length encoded raster pixels. 6573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=DecodeImage(image,dib_info.compression ? MagickTrue : MagickFalse, 6593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels); 6603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 6613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"UnableToRunlengthDecodeImage"); 6623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize image structure. 6653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->units=PixelsPerCentimeterResolution; 6672a11befa48257796843468409d77bb8cfb129cdccristy image->resolution.x=(double) dib_info.x_pixels/100.0; 6682a11befa48257796843468409d77bb8cfb129cdccristy image->resolution.y=(double) dib_info.y_pixels/100.0; 6693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DIB raster image to pixel packets. 6713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 6723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (dib_info.bits_per_pixel) 6733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 6753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 6773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert bitmap scanline. 6783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 679bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 6803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 6823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 683acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 6843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 685bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < ((ssize_t) image->columns-7); x+=8) 6863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy for (bit=0; bit < 8; bit++) 6883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6894c08aed51c5899665ade97263692328eea4af106cristy index=(Quantum) ((*p) & (0x80 >> bit) ? 0x01 : 0x00); 6904c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 691ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 6923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 6943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 6953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 8) != 0) 6963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 697bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (bit=0; bit < (ssize_t) (image->columns % 8); bit++) 6983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 6994c08aed51c5899665ade97263692328eea4af106cristy index=(Quantum) ((*p) & (0x80 >> bit) ? 0x01 : 0x00); 7004c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 701ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 7043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 7083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 7103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 7113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 7123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 715ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 7163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 4: 7193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 7223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 723bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 7243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 7263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 727acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 7283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 729bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < ((ssize_t) image->columns-1); x+=2) 7303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 731c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,(*p >> 4) & 0xf,exception); 7324c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 733ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 734c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,*p & 0xf,exception); 7354c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 7363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 737ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((image->columns % 2) != 0) 7403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 741c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,(*p >> 4) & 0xf,exception); 7424c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 743ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 7453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 7493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 7513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 7523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 7533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 756ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 7573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 7603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 7633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 7643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.compression == BI_RLE8) || 7653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_RLE4)) 7663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=image->columns; 767bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 7683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 7703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 771acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 7723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 773bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 7743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 775c82a27bb8e3138ff9bbf0f696663bdf3e704cedecristy index=ConstrainColormapIndex(image,*p,exception); 7764c08aed51c5899665ade97263692328eea4af106cristy SetPixelIndex(image,index,q); 7773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p++; 778ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 7793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 7813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 7833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 7853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 7863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 7873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 790ea1a8aa04a9fe1500104284407c1cc06d20da699cristy (void) SyncImage(image,exception); 7913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 7923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 7933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 7943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 7953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 7963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word; 7973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 7983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 7993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoColor scanline. 8003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 8013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->storage_class=DirectClass; 8023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.compression == BI_RLE8) 8033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=2*image->columns; 804bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 8053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 8073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 808acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 8093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 810bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 8113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word=(*p++); 8133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word|=(*p++ << 8); 8143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.red_mask == 0) 8153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8164c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(ScaleColor5to8( 8174c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 10) & 0x1f))),q); 8184c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(ScaleColor5to8( 8194c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 5) & 0x1f))),q); 8204c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(ScaleColor5to8( 8214c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) (word & 0x1f))),q); 8223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 8243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8254c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(ScaleColor5to8( 8264c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 11) & 0x1f))),q); 8274c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(ScaleColor6to8( 8284c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ((word >> 5) & 0x3f))),q); 8294c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(ScaleColor5to8( 8304c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) (word & 0x1f))),q); 8313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 832ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 8333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 8353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 8373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 8393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 8403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 8413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 24: 8473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 32: 8483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 8503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DirectColor scanline. 8513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 852bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=(ssize_t) image->rows-1; y >= 0; y--) 8533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy p=pixels+(image->rows-y-1)*bytes_per_line; 8553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 856acd2ed254c18c254a0ab5aafa06d1645e5d079d8cristy if (q == (Quantum *) NULL) 8573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 858bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 8593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8604c08aed51c5899665ade97263692328eea4af106cristy SetPixelBlue(image,ScaleCharToQuantum(*p++),q); 8614c08aed51c5899665ade97263692328eea4af106cristy SetPixelGreen(image,ScaleCharToQuantum(*p++),q); 8624c08aed51c5899665ade97263692328eea4af106cristy SetPixelRed(image,ScaleCharToQuantum(*p++),q); 86317f11b056210f082a6d0e54ac5d68e6d72fa76b2cristy if (image->alpha_trait != UndefinedPixelTrait) 8644c08aed51c5899665ade97263692328eea4af106cristy SetPixelAlpha(image,ScaleCharToQuantum(*p++),q); 865ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy q+=GetPixelChannels(image); 8663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (SyncAuthenticPixels(image,exception) == MagickFalse) 8683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->previous == (Image *) NULL) 8703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status=SetImageProgress(image,LoadImageTag,image->rows-y-1, 8723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->rows); 8733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 8743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 8783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy default: 8803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowReaderException(CorruptImageError,"ImproperImageHeader"); 8813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 8820553bd5babdbdf65b95f91ed401c98fead17ab54cristy pixel_info=RelinquishVirtualMemory(pixel_info); 8833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (EOFBlob(image) != MagickFalse) 8843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", 8853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy image->filename); 8863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.height < 0) 8873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 8883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Image 8893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *flipped_image; 8903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 8913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 8923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Correct image orientation. 8933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 8943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy flipped_image=FlipImage(image,exception); 895bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy if (flipped_image != (Image *) NULL) 8963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 897bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy DuplicateBlob(flipped_image,image); 898bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy image=DestroyImage(image); 899bbfd4cd2bb2c9d59a20738b8cefce4c12307722dcristy image=flipped_image; 9003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 9023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 9033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(GetFirstImageInList(image)); 9043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% R e g i s t e r D I B I m a g e % 9123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% RegisterDIBImage() adds attributes for the DIB image format to 9183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% the list of supported formats. The attributes include the image format 9193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% tag, a method to read and/or write the format, whether the format 9203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% supports the saving of more than one frame to the same file or blob, 9213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% whether the format supports native in-memory I/O, and a brief 9223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% description of the format. 9233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the RegisterDIBImage method is: 9253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 926bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy% size_t RegisterDIBImage(void) 9273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 929bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristyModuleExport size_t RegisterDIBImage(void) 9303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickInfo 9323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *entry; 9333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 93406b627a07ff44e1ff93ef1288c9f428066ded10ddirk entry=AcquireMagickInfo("DIB","DIB", 93506b627a07ff44e1ff93ef1288c9f428066ded10ddirk "Microsoft Windows 3.X Packed Device-Independent Bitmap"); 9363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->decoder=(DecodeImageHandler *) ReadDIBImage; 9373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->encoder=(EncodeImageHandler *) WriteDIBImage; 9383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy entry->magick=(IsImageFormatHandler *) IsDIB; 93908e9a113db499034abb5ad8d59b42f8eca3c641cdirk entry->flags^=CoderAdjoinFlag; 94008e9a113db499034abb5ad8d59b42f8eca3c641cdirk entry->flags|=CoderStealthFlag; 9413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) RegisterMagickInfo(entry); 9423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickImageCoderSignature); 9433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% U n r e g i s t e r D I B I m a g e % 9513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterDIBImage() removes format registrations made by the 9573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% DIB module from the list of supported formats. 9583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the UnregisterDIBImage method is: 9603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% UnregisterDIBImage(void) 9623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9643ed852eea50f9d4cd633efb8c2b054b8e33c253cristyModuleExport void UnregisterDIBImage(void) 9653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 9663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) UnregisterMagickInfo("DIB"); 9673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 9683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 9693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy/* 9703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% W r i t e D I B I m a g e % 9753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% % 9783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 9793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% WriteDIBImage() writes an image in Microsoft Windows bitmap encoded 9813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% image format. 9823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% The format of the WriteDIBImage method is: 9843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9851e178e70fb3c956f9fc1e30c3ba863e882666465cristy% MagickBooleanType WriteDIBImage(const ImageInfo *image_info, 9861e178e70fb3c956f9fc1e30c3ba863e882666465cristy% Image *image,ExceptionInfo *exception) 9873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% A description of each parameter follows. 9893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image_info: the image info. 9913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% o image: The image. 9933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy% 9941e178e70fb3c956f9fc1e30c3ba863e882666465cristy% o exception: return any errors or warnings in this structure. 9951e178e70fb3c956f9fc1e30c3ba863e882666465cristy% 9963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy*/ 9971e178e70fb3c956f9fc1e30c3ba863e882666465cristystatic MagickBooleanType WriteDIBImage(const ImageInfo *image_info,Image *image, 9981e178e70fb3c956f9fc1e30c3ba863e882666465cristy ExceptionInfo *exception) 9993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy{ 10003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy DIBInfo 10013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info; 10023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy MagickBooleanType 10043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy status; 10053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10064c08aed51c5899665ade97263692328eea4af106cristy register const Quantum 10073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *p; 10083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1009bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy register ssize_t 10103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy i, 10113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x; 10123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 10143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q; 10153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 1016ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy size_t 1017ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy bytes_per_line; 1018ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy 1019ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy ssize_t 1020ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy y; 1021ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy 10223ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 10233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_data, 10243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *pixels; 10253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 10263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Open output image file. 10283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image_info != (const ImageInfo *) NULL); 1030e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(image_info->signature == MagickCoreSignature); 10313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy assert(image != (Image *) NULL); 1032e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(image->signature == MagickCoreSignature); 10333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->debug != MagickFalse) 10343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); 10353a37efd7ece979e9c63dc8f2f2d3816bab8b1156cristy assert(exception != (ExceptionInfo *) NULL); 1036e1c94d9d25db6b0dd7a5028ffee31d1057855d73cristy assert(exception->signature == MagickCoreSignature); 10371e178e70fb3c956f9fc1e30c3ba863e882666465cristy status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); 10383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 10393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(status); 10403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Initialize DIB raster file header. 10423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1043af8d391906d11f0a1f2bbf4e2adbc4995c852d33cristy (void) TransformImageColorspace(image,sRGBColorspace,exception); 10443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == DirectClass) 10453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Full color DIB raster. 10483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=0; 10508a46d827a124555f0c48fb2368ec1bba8e079ab6cristy dib_info.bits_per_pixel=(unsigned short) (image->alpha_trait ? 32 : 24); 10513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 10533ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Colormapped DIB raster. 10563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=8; 10583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->depth > 8) 10593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=16; 1060f1d8548abecaf5ca89d453fd9fc0cde77d20672bdirk if (SetImageMonochrome(image,exception) != MagickFalse) 10613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.bits_per_pixel=1; 10623ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.number_colors=(dib_info.bits_per_pixel == 16) ? 0 : 10633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (1UL << dib_info.bits_per_pixel); 10643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bytes_per_line=4*((image->columns*dib_info.bits_per_pixel+31)/32); 10663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.size=40; 1067bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.width=(ssize_t) image->columns; 1068bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.height=(ssize_t) image->rows; 10693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.planes=1; 1070bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.compression=(size_t) (dib_info.bits_per_pixel == 16 ? 10713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy BI_BITFIELDS : BI_RGB); 10723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.image_size=bytes_per_line*image->rows; 10733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.x_pixels=75*39; 10743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.y_pixels=75*39; 10753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (image->units) 10763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case UndefinedResolution: 10783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case PixelsPerInchResolution: 10793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10802a11befa48257796843468409d77bb8cfb129cdccristy dib_info.x_pixels=(size_t) (100.0*image->resolution.x/2.54); 10812a11befa48257796843468409d77bb8cfb129cdccristy dib_info.y_pixels=(size_t) (100.0*image->resolution.y/2.54); 10823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 10833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10843ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case PixelsPerCentimeterResolution: 10853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 10862a11befa48257796843468409d77bb8cfb129cdccristy dib_info.x_pixels=(size_t) (100.0*image->resolution.x); 10872a11befa48257796843468409d77bb8cfb129cdccristy dib_info.y_pixels=(size_t) (100.0*image->resolution.y); 10883ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 10893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 10913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.colors_important=dib_info.number_colors; 10923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 10933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert MIFF to DIB raster pixels. 10943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 10953ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) AcquireQuantumMemory(dib_info.image_size, 10963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy sizeof(*pixels)); 10973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (pixels == (unsigned char *) NULL) 10983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 10993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) ResetMagickMemory(pixels,0,dib_info.image_size); 11003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy switch (dib_info.bits_per_pixel) 11013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 1: 11033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy register unsigned char 11053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit, 11063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte; 11073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 11083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass image to a DIB monochrome image. 11103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1111bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11131e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11144c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 11173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit=0; 11183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 1119bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11203ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11213ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte<<=1; 11224c08aed51c5899665ade97263692328eea4af106cristy byte|=GetPixelIndex(image,p) != 0 ? 0x01 : 0x00; 11233ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit++; 11243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (bit == 8) 11253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11263ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=byte; 11273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy bit=0; 11283ed852eea50f9d4cd633efb8c2b054b8e33c253cristy byte=0; 11293ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1130ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (bit != 0) 11333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char) (byte << (8-bit)); 11353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy x++; 11363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1137bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=(ssize_t) (image->columns+7)/8; x < (ssize_t) bytes_per_line; x++) 11383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1139cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1140ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 11423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 8: 11473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11483ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 11493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert PseudoClass packet to DIB pixel. 11503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1151bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11531e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11544c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1157bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11584c08aed51c5899665ade97263692328eea4af106cristy { 11594c08aed51c5899665ade97263692328eea4af106cristy *q++=(unsigned char) GetPixelIndex(image,p); 1160ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11614c08aed51c5899665ade97263692328eea4af106cristy } 1162bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for ( ; x < (ssize_t) bytes_per_line; x++) 11633ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1164cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1165ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 11673ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11683ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11693ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11703ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 11713ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 16: 11723ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned short 11743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word; 11753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 1176ca793d76191054d3659644139269c742c44bcab7cristy Convert PseudoClass packet to DIB pixel. 11773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1178bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 11793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11801e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 11814c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 11823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 11833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1184bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 11853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 11863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy word=(unsigned short) ((ScaleColor8to5((unsigned char) 11874c08aed51c5899665ade97263692328eea4af106cristy ScaleQuantumToChar(GetPixelRed(image,p))) << 11) | (ScaleColor8to6( 11884c08aed51c5899665ade97263692328eea4af106cristy (unsigned char) ScaleQuantumToChar(GetPixelGreen(image,p))) << 5) | 11894c08aed51c5899665ade97263692328eea4af106cristy (ScaleColor8to5((unsigned char) ScaleQuantumToChar((unsigned char) 11904c08aed51c5899665ade97263692328eea4af106cristy GetPixelBlue(image,p)) << 0))); 11913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char)(word & 0xff); 11923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(unsigned char)(word >> 8); 1193ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 11943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1195f6fe0a138e6b5879b6c11a27d715412479acf128cristy for (x=(ssize_t) (2*image->columns); x < (ssize_t) bytes_per_line; x++) 11963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1197cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1198ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 11993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 12003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 24: 12053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy case 32: 12063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert DirectClass packet to DIB RGB pixel. 12093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1210bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (y=0; y < (ssize_t) image->rows; y++) 12113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12121e178e70fb3c956f9fc1e30c3ba863e882666465cristy p=GetVirtualPixels(image,0,y,image->columns,1,exception); 12134c08aed51c5899665ade97263692328eea4af106cristy if (p == (const Quantum *) NULL) 12143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=pixels+(image->rows-y-1)*bytes_per_line; 1216bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (x=0; x < (ssize_t) image->columns; x++) 12173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12184c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); 12194c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); 12204c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelRed(image,p)); 122117f11b056210f082a6d0e54ac5d68e6d72fa76b2cristy if (image->alpha_trait != UndefinedPixelTrait) 12224c08aed51c5899665ade97263692328eea4af106cristy *q++=ScaleQuantumToChar(GetPixelAlpha(image,p)); 1223ed2315769b26818ed9d0c1291dc0457f0d8da0a4cristy p+=GetPixelChannels(image); 12243ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12253ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel == 24) 1226f6fe0a138e6b5879b6c11a27d715412479acf128cristy for (x=(ssize_t) (3*image->columns); x < (ssize_t) bytes_per_line; x++) 12273ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=0x00; 1228cee9711bbc334b5677d5ec4ea1cc70340d35ee35cristy status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, 1229ddbc41b8cf3749a1d8fbad1dd5dede5cb62aabefcristy image->rows); 12303ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (status == MagickFalse) 12313ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12323ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12333ed852eea50f9d4cd633efb8c2b054b8e33c253cristy break; 12343ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12353ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12363ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel == 8) 12373ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image_info->compression != NoCompression) 12383ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12393ed852eea50f9d4cd633efb8c2b054b8e33c253cristy size_t 12403ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length; 12413ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12423ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12433ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Convert run-length encoded raster pixels. 12443ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12453ed852eea50f9d4cd633efb8c2b054b8e33c253cristy length=2UL*(bytes_per_line+2UL)+2UL; 12463ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_data=(unsigned char *) AcquireQuantumMemory(length, 12473ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (image->rows+2UL)*sizeof(*dib_data)); 12484d0ca34912f861b25e5ed95e3f624048cb180358cristy if (dib_data == (unsigned char *) NULL) 12493ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12503ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 12513ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 12523ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1253bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy dib_info.image_size=(size_t) EncodeImage(image,bytes_per_line, 12543ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels,dib_data); 12553ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 12563ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=dib_data; 12573ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_info.compression = BI_RLE8; 12583ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 12593ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12603ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Write DIB header. 12613ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 1262f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.size); 1263eaedf06777741da32408da72c1e512975c600c48cristy (void) WriteBlobLSBLong(image,dib_info.width); 12643ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,(unsigned short) dib_info.height); 12653ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBShort(image,(unsigned short) dib_info.planes); 12663ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBShort(image,dib_info.bits_per_pixel); 1267f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.compression); 1268f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.image_size); 1269f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.x_pixels); 1270f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.y_pixels); 1271f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.number_colors); 1272f6fe0a138e6b5879b6c11a27d715412479acf128cristy (void) WriteBlobLSBLong(image,(unsigned int) dib_info.colors_important); 12733ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (image->storage_class == PseudoClass) 12743ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12753ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_info.bits_per_pixel <= 8) 12763ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12773ed852eea50f9d4cd633efb8c2b054b8e33c253cristy unsigned char 12783ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *dib_colormap; 12793ed852eea50f9d4cd633efb8c2b054b8e33c253cristy 12803ed852eea50f9d4cd633efb8c2b054b8e33c253cristy /* 12813ed852eea50f9d4cd633efb8c2b054b8e33c253cristy Dump colormap to file. 12823ed852eea50f9d4cd633efb8c2b054b8e33c253cristy */ 12833ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) AcquireQuantumMemory((size_t) 12844d0ca34912f861b25e5ed95e3f624048cb180358cristy (1UL << dib_info.bits_per_pixel),4*sizeof(*dib_colormap)); 12853ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if (dib_colormap == (unsigned char *) NULL) 12863ed852eea50f9d4cd633efb8c2b054b8e33c253cristy ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); 12873ed852eea50f9d4cd633efb8c2b054b8e33c253cristy q=dib_colormap; 1288bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for (i=0; i < (ssize_t) MagickMin(image->colors,dib_info.number_colors); i++) 12893ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12903ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].blue); 12913ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].green); 12923ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=ScaleQuantumToChar(image->colormap[i].red); 12933ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12943ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 1295bb50337b2a8a16ca7e903cc04ab195ff0fd47ae6cristy for ( ; i < (ssize_t) (1L << dib_info.bits_per_pixel); i++) 12963ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 12973ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12983ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 12993ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 13003ed852eea50f9d4cd633efb8c2b054b8e33c253cristy *q++=(Quantum) 0x0; 13013ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13023ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,(size_t) (4*(1 << dib_info.bits_per_pixel)), 13033ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap); 13043ed852eea50f9d4cd633efb8c2b054b8e33c253cristy dib_colormap=(unsigned char *) RelinquishMagickMemory(dib_colormap); 13053ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13063ed852eea50f9d4cd633efb8c2b054b8e33c253cristy else 13073ed852eea50f9d4cd633efb8c2b054b8e33c253cristy if ((dib_info.bits_per_pixel == 16) && 13083ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (dib_info.compression == BI_BITFIELDS)) 13093ed852eea50f9d4cd633efb8c2b054b8e33c253cristy { 13103ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0xf800); 13113ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0x07e0); 13123ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlobLSBLong(image,0x001f); 13133ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13143ed852eea50f9d4cd633efb8c2b054b8e33c253cristy } 13153ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) WriteBlob(image,dib_info.image_size,pixels); 13163ed852eea50f9d4cd633efb8c2b054b8e33c253cristy pixels=(unsigned char *) RelinquishMagickMemory(pixels); 13173ed852eea50f9d4cd633efb8c2b054b8e33c253cristy (void) CloseBlob(image); 13183ed852eea50f9d4cd633efb8c2b054b8e33c253cristy return(MagickTrue); 13193ed852eea50f9d4cd633efb8c2b054b8e33c253cristy} 1320