| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % W W PPPP GGGG % |
| % W W P P G % |
| % W W W PPPP G GGG % |
| % WW WW P G G % |
| % W W P GGG % |
| % % |
| % % |
| % Read WordPerfect Image Format % |
| % % |
| % Software Design % |
| % Jaroslav Fojtik % |
| % June 2000 % |
| % % |
| % % |
| % Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization % |
| % dedicated to making software imaging solutions freely available. % |
| % % |
| % You may not use this file except in compliance with the License. You may % |
| % obtain a copy of the License at % |
| % % |
| % http://www.imagemagick.org/script/license.php % |
| % % |
| % Unless required by applicable law or agreed to in writing, software % |
| % distributed under the License is distributed on an "AS IS" BASIS, % |
| % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| % See the License for the specific language governing permissions and % |
| % limitations under the License. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "magick/studio.h" |
| #include "magick/blob.h" |
| #include "magick/blob-private.h" |
| #include "magick/color-private.h" |
| #include "magick/colormap.h" |
| #include "magick/colormap-private.h" |
| #include "magick/constitute.h" |
| #include "magick/exception.h" |
| #include "magick/exception-private.h" |
| #include "magick/cache.h" |
| #include "magick/image.h" |
| #include "magick/image-private.h" |
| #include "magick/list.h" |
| #include "magick/magic.h" |
| #include "magick/magick.h" |
| #include "magick/memory_.h" |
| #include "magick/resource_.h" |
| #include "magick/quantum-private.h" |
| #include "magick/shear.h" |
| #include "magick/static.h" |
| #include "magick/string_.h" |
| #include "magick/module.h" |
| #include "magick/transform.h" |
| #include "magick/utility.h" |
| |
| typedef struct |
| { |
| unsigned char Red; |
| unsigned char Blue; |
| unsigned char Green; |
| } RGB_Record; |
| |
| /* Default palette for WPG level 1 */ |
| const RGB_Record WPG1_Palette[256]={ |
| { 0, 0, 0}, { 0, 0,168}, |
| { 0,168, 0}, { 0,168,168}, |
| {168, 0, 0}, {168, 0,168}, |
| {168, 84, 0}, {168,168,168}, |
| { 84, 84, 84}, { 84, 84,252}, |
| { 84,252, 84}, { 84,252,252}, |
| {252, 84, 84}, {252, 84,252}, |
| {252,252, 84}, {252,252,252}, /*16*/ |
| { 0, 0, 0}, { 20, 20, 20}, |
| { 32, 32, 32}, { 44, 44, 44}, |
| { 56, 56, 56}, { 68, 68, 68}, |
| { 80, 80, 80}, { 96, 96, 96}, |
| {112,112,112}, {128,128,128}, |
| {144,144,144}, {160,160,160}, |
| {180,180,180}, {200,200,200}, |
| {224,224,224}, {252,252,252}, /*32*/ |
| { 0, 0,252}, { 64, 0,252}, |
| {124, 0,252}, {188, 0,252}, |
| {252, 0,252}, {252, 0,188}, |
| {252, 0,124}, {252, 0, 64}, |
| {252, 0, 0}, {252, 64, 0}, |
| {252,124, 0}, {252,188, 0}, |
| {252,252, 0}, {188,252, 0}, |
| {124,252, 0}, { 64,252, 0}, /*48*/ |
| { 0,252, 0}, { 0,252, 64}, |
| { 0,252,124}, { 0,252,188}, |
| { 0,252,252}, { 0,188,252}, |
| { 0,124,252}, { 0, 64,252}, |
| {124,124,252}, {156,124,252}, |
| {188,124,252}, {220,124,252}, |
| {252,124,252}, {252,124,220}, |
| {252,124,188}, {252,124,156}, /*64*/ |
| {252,124,124}, {252,156,124}, |
| {252,188,124}, {252,220,124}, |
| {252,252,124}, {220,252,124}, |
| {188,252,124}, {156,252,124}, |
| {124,252,124}, {124,252,156}, |
| {124,252,188}, {124,252,220}, |
| {124,252,252}, {124,220,252}, |
| {124,188,252}, {124,156,252}, /*80*/ |
| {180,180,252}, {196,180,252}, |
| {216,180,252}, {232,180,252}, |
| {252,180,252}, {252,180,232}, |
| {252,180,216}, {252,180,196}, |
| {252,180,180}, {252,196,180}, |
| {252,216,180}, {252,232,180}, |
| {252,252,180}, {232,252,180}, |
| {216,252,180}, {196,252,180}, /*96*/ |
| {180,220,180}, {180,252,196}, |
| {180,252,216}, {180,252,232}, |
| {180,252,252}, {180,232,252}, |
| {180,216,252}, {180,196,252}, |
| {0,0,112}, {28,0,112}, |
| {56,0,112}, {84,0,112}, |
| {112,0,112}, {112,0,84}, |
| {112,0,56}, {112,0,28}, /*112*/ |
| {112,0,0}, {112,28,0}, |
| {112,56,0}, {112,84,0}, |
| {112,112,0}, {84,112,0}, |
| {56,112,0}, {28,112,0}, |
| {0,112,0}, {0,112,28}, |
| {0,112,56}, {0,112,84}, |
| {0,112,112}, {0,84,112}, |
| {0,56,112}, {0,28,112}, /*128*/ |
| {56,56,112}, {68,56,112}, |
| {84,56,112}, {96,56,112}, |
| {112,56,112}, {112,56,96}, |
| {112,56,84}, {112,56,68}, |
| {112,56,56}, {112,68,56}, |
| {112,84,56}, {112,96,56}, |
| {112,112,56}, {96,112,56}, |
| {84,112,56}, {68,112,56}, /*144*/ |
| {56,112,56}, {56,112,69}, |
| {56,112,84}, {56,112,96}, |
| {56,112,112}, {56,96,112}, |
| {56,84,112}, {56,68,112}, |
| {80,80,112}, {88,80,112}, |
| {96,80,112}, {104,80,112}, |
| {112,80,112}, {112,80,104}, |
| {112,80,96}, {112,80,88}, /*160*/ |
| {112,80,80}, {112,88,80}, |
| {112,96,80}, {112,104,80}, |
| {112,112,80}, {104,112,80}, |
| {96,112,80}, {88,112,80}, |
| {80,112,80}, {80,112,88}, |
| {80,112,96}, {80,112,104}, |
| {80,112,112}, {80,114,112}, |
| {80,96,112}, {80,88,112}, /*176*/ |
| {0,0,64}, {16,0,64}, |
| {32,0,64}, {48,0,64}, |
| {64,0,64}, {64,0,48}, |
| {64,0,32}, {64,0,16}, |
| {64,0,0}, {64,16,0}, |
| {64,32,0}, {64,48,0}, |
| {64,64,0}, {48,64,0}, |
| {32,64,0}, {16,64,0}, /*192*/ |
| {0,64,0}, {0,64,16}, |
| {0,64,32}, {0,64,48}, |
| {0,64,64}, {0,48,64}, |
| {0,32,64}, {0,16,64}, |
| {32,32,64}, {40,32,64}, |
| {48,32,64}, {56,32,64}, |
| {64,32,64}, {64,32,56}, |
| {64,32,48}, {64,32,40}, /*208*/ |
| {64,32,32}, {64,40,32}, |
| {64,48,32}, {64,56,32}, |
| {64,64,32}, {56,64,32}, |
| {48,64,32}, {40,64,32}, |
| {32,64,32}, {32,64,40}, |
| {32,64,48}, {32,64,56}, |
| {32,64,64}, {32,56,64}, |
| {32,48,64}, {32,40,64}, /*224*/ |
| {44,44,64}, {48,44,64}, |
| {52,44,64}, {60,44,64}, |
| {64,44,64}, {64,44,60}, |
| {64,44,52}, {64,44,48}, |
| {64,44,44}, {64,48,44}, |
| {64,52,44}, {64,60,44}, |
| {64,64,44}, {60,64,44}, |
| {52,64,44}, {48,64,44}, /*240*/ |
| {44,64,44}, {44,64,48}, |
| {44,64,52}, {44,64,60}, |
| {44,64,64}, {44,60,64}, |
| {44,55,64}, {44,48,64}, |
| {0,0,0}, {0,0,0}, |
| {0,0,0}, {0,0,0}, |
| {0,0,0}, {0,0,0}, |
| {0,0,0}, {0,0,0} /*256*/ |
| }; |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s W P G % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsWPG() returns True if the image format type, identified by the magick |
| % string, is WPG. |
| % |
| % The format of the IsWPG method is: |
| % |
| % unsigned int IsWPG(const unsigned char *magick,const size_t length) |
| % |
| % A description of each parameter follows: |
| % |
| % o status: Method IsWPG returns True if the image format type is WPG. |
| % |
| % o magick: compare image format pattern against these bytes. |
| % |
| % o length: Specifies the length of the magick string. |
| % |
| */ |
| static unsigned int IsWPG(const unsigned char *magick,const size_t length) |
| { |
| if (length < 4) |
| return(MagickFalse); |
| if (memcmp(magick,"\377WPC",4) == 0) |
| return(MagickTrue); |
| return(MagickFalse); |
| } |
| |
| |
| static void Rd_WP_DWORD(Image *image,size_t *d) |
| { |
| unsigned char |
| b; |
| |
| b=ReadBlobByte(image); |
| *d=b; |
| if (b < 0xFFU) |
| return; |
| b=ReadBlobByte(image); |
| *d=(size_t) b; |
| b=ReadBlobByte(image); |
| *d+=(size_t) b*256l; |
| if (*d < 0x8000) |
| return; |
| *d=(*d & 0x7FFF) << 16; |
| b=ReadBlobByte(image); |
| *d+=(size_t) b; |
| b=ReadBlobByte(image); |
| *d+=(size_t) b*256l; |
| return; |
| } |
| |
| static void InsertRow(unsigned char *p,ssize_t y,Image *image, int bpp) |
| { |
| ExceptionInfo |
| *exception; |
| |
| int |
| bit; |
| |
| ssize_t |
| x; |
| |
| register PixelPacket |
| *q; |
| |
| IndexPacket |
| index; |
| |
| register IndexPacket |
| *indexes; |
| |
| exception=(&image->exception); |
| switch (bpp) |
| { |
| case 1: /* Convert bitmap scanline. */ |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(image); |
| for (x=0; x < ((ssize_t) image->columns-7); x+=8) |
| { |
| for (bit=0; bit < 8; bit++) |
| { |
| index=((*p) & (0x80 >> bit) ? 0x01 : 0x00); |
| indexes[x+bit]=index; |
| *q++=image->colormap[(int) index]; |
| } |
| p++; |
| } |
| if ((image->columns % 8) != 0) |
| { |
| for (bit=0; bit < (ssize_t) (image->columns % 8); bit++) |
| { |
| index=((*p) & (0x80 >> bit) ? 0x01 : 0x00); |
| indexes[x+bit]=index; |
| *q++=image->colormap[(int) index]; |
| } |
| p++; |
| } |
| if (!SyncAuthenticPixels(image,exception)) |
| break; |
| break; |
| } |
| case 2: /* Convert PseudoColor scanline. */ |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(image); |
| for (x=0; x < ((ssize_t) image->columns-1); x+=2) |
| { |
| index=ConstrainColormapIndex(image,(*p >> 6) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| index=ConstrainColormapIndex(image,(*p >> 4) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| index=ConstrainColormapIndex(image,(*p >> 2) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| index=ConstrainColormapIndex(image,(*p) & 0x3); |
| indexes[x+1]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| p++; |
| } |
| if ((image->columns % 4) != 0) |
| { |
| index=ConstrainColormapIndex(image,(*p >> 6) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| if ((image->columns % 4) >= 1) |
| |
| { |
| index=ConstrainColormapIndex(image,(*p >> 4) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| if ((image->columns % 4) >= 2) |
| |
| { |
| index=ConstrainColormapIndex(image,(*p >> 2) & 0x3); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| } |
| } |
| p++; |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| break; |
| } |
| |
| case 4: /* Convert PseudoColor scanline. */ |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| indexes=GetAuthenticIndexQueue(image); |
| for (x=0; x < ((ssize_t) image->columns-1); x+=2) |
| { |
| index=ConstrainColormapIndex(image,(*p >> 4) & 0x0f); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| index=ConstrainColormapIndex(image,(*p) & 0x0f); |
| indexes[x+1]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| p++; |
| } |
| if ((image->columns % 2) != 0) |
| { |
| index=ConstrainColormapIndex(image,(*p >> 4) & 0x0f); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| p++; |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| break; |
| } |
| case 8: /* Convert PseudoColor scanline. */ |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) break; |
| indexes=GetAuthenticIndexQueue(image); |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| index=ConstrainColormapIndex(image,*p); |
| indexes[x]=index; |
| *q++=image->colormap[(ssize_t) index]; |
| p++; |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| } |
| break; |
| |
| case 24: /* Convert DirectColor scanline. */ |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (PixelPacket *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| q->red=ScaleCharToQuantum(*p++); |
| q->green=ScaleCharToQuantum(*p++); |
| q->blue=ScaleCharToQuantum(*p++); |
| q++; |
| } |
| if (!SyncAuthenticPixels(image,exception)) |
| break; |
| break; |
| } |
| } |
| |
| |
| /* Helper for WPG1 raster reader. */ |
| #define InsertByte(b) \ |
| { \ |
| BImgBuff[x]=b; \ |
| x++; \ |
| if((ssize_t) x>=ldblk) \ |
| { \ |
| InsertRow(BImgBuff,(ssize_t) y,image,bpp); \ |
| x=0; \ |
| y++; \ |
| } \ |
| } |
| /* WPG1 raster reader. */ |
| static int UnpackWPGRaster(Image *image,int bpp) |
| { |
| int |
| x, |
| y, |
| i; |
| |
| unsigned char |
| bbuf, |
| *BImgBuff, |
| RunCount; |
| |
| ssize_t |
| ldblk; |
| |
| x=0; |
| y=0; |
| |
| ldblk=(ssize_t) ((bpp*image->columns+7)/8); |
| BImgBuff=(unsigned char *) AcquireQuantumMemory((size_t) ldblk, |
| sizeof(*BImgBuff)); |
| if(BImgBuff==NULL) return(-2); |
| |
| while(y<(ssize_t) image->rows) |
| { |
| bbuf=ReadBlobByte(image); |
| |
| RunCount=bbuf & 0x7F; |
| if(bbuf & 0x80) |
| { |
| if(RunCount) /* repeat next byte runcount * */ |
| { |
| bbuf=ReadBlobByte(image); |
| for(i=0;i<(int) RunCount;i++) InsertByte(bbuf); |
| } |
| else { /* read next byte as RunCount; repeat 0xFF runcount* */ |
| RunCount=ReadBlobByte(image); |
| for(i=0;i<(int) RunCount;i++) InsertByte(0xFF); |
| } |
| } |
| else { |
| if(RunCount) /* next runcount byte are readed directly */ |
| { |
| for(i=0;i < (int) RunCount;i++) |
| { |
| bbuf=ReadBlobByte(image); |
| InsertByte(bbuf); |
| } |
| } |
| else { /* repeat previous line runcount* */ |
| RunCount=ReadBlobByte(image); |
| if(x) { /* attempt to duplicate row from x position: */ |
| /* I do not know what to do here */ |
| BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff); |
| return(-3); |
| } |
| for(i=0;i < (int) RunCount;i++) |
| { |
| x=0; |
| y++; /* Here I need to duplicate previous row RUNCOUNT* */ |
| if(y<2) continue; |
| if(y>(ssize_t) image->rows) |
| { |
| BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff); |
| return(-4); |
| } |
| InsertRow(BImgBuff,y-1,image,bpp); |
| } |
| } |
| } |
| } |
| BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff); |
| return(0); |
| } |
| |
| |
| /* Helper for WPG2 reader. */ |
| #define InsertByte6(b) \ |
| { \ |
| if(XorMe)\ |
| BImgBuff[x] = (unsigned char)~b;\ |
| else\ |
| BImgBuff[x] = b;\ |
| x++; \ |
| if((ssize_t) x >= ldblk) \ |
| { \ |
| InsertRow(BImgBuff,(ssize_t) y,image,bpp); \ |
| x=0; \ |
| y++; \ |
| } \ |
| } |
| /* WPG2 raster reader. */ |
| static int UnpackWPG2Raster(Image *image,int bpp) |
| { |
| unsigned int |
| SampleSize=1; |
| |
| unsigned char |
| bbuf, |
| *BImgBuff, |
| RunCount, |
| SampleBuffer[8]; |
| |
| size_t |
| x, |
| y; |
| |
| unsigned int |
| i; |
| |
| ssize_t |
| ldblk; |
| |
| int XorMe = 0; |
| |
| x=0; |
| y=0; |
| ldblk=(ssize_t) ((bpp*image->columns+7)/8); |
| BImgBuff=(unsigned char *) AcquireQuantumMemory((size_t) ldblk, |
| sizeof(*BImgBuff)); |
| if(BImgBuff==NULL) |
| return(-2); |
| |
| while( y< image->rows) |
| { |
| bbuf=ReadBlobByte(image); |
| |
| switch(bbuf) |
| { |
| case 0x7D: |
| SampleSize=ReadBlobByte(image); /* DSZ */ |
| if(SampleSize>8) |
| return(-2); |
| if(SampleSize<1) |
| return(-2); |
| break; |
| case 0x7E: |
| (void) fprintf(stderr,"\nUnsupported WPG token XOR, please report!"); |
| XorMe=!XorMe; |
| break; |
| case 0x7F: |
| RunCount=ReadBlobByte(image); /* BLK */ |
| for(i=0; i < SampleSize*(RunCount+1); i++) |
| { |
| InsertByte6(0); |
| } |
| break; |
| case 0xFD: |
| RunCount=ReadBlobByte(image); /* EXT */ |
| for(i=0; i<= RunCount;i++) |
| for(bbuf=0; bbuf < SampleSize; bbuf++) |
| InsertByte6(SampleBuffer[bbuf]); |
| break; |
| case 0xFE: |
| RunCount=ReadBlobByte(image); /* RST */ |
| if(x!=0) |
| { |
| (void) fprintf(stderr, |
| "\nUnsupported WPG2 unaligned token RST x=%.20g, please report!\n" |
| ,(double) x); |
| return(-3); |
| } |
| { |
| /* duplicate the previous row RunCount x */ |
| for(i=0;i<=RunCount;i++) |
| { |
| InsertRow(BImgBuff,(ssize_t) (image->rows >= y ? y : image->rows-1), |
| image,bpp); |
| y++; |
| } |
| } |
| break; |
| case 0xFF: |
| RunCount=ReadBlobByte(image); /* WHT */ |
| for(i=0; i < SampleSize*(RunCount+1); i++) |
| { |
| InsertByte6(0xFF); |
| } |
| break; |
| default: |
| RunCount=bbuf & 0x7F; |
| |
| if(bbuf & 0x80) /* REP */ |
| { |
| for(i=0; i < SampleSize; i++) |
| SampleBuffer[i]=ReadBlobByte(image); |
| for(i=0;i<=RunCount;i++) |
| for(bbuf=0;bbuf<SampleSize;bbuf++) |
| InsertByte6(SampleBuffer[bbuf]); |
| } |
| else { /* NRP */ |
| for(i=0; i< SampleSize*(RunCount+1);i++) |
| { |
| bbuf=ReadBlobByte(image); |
| InsertByte6(bbuf); |
| } |
| } |
| } |
| } |
| BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff); |
| return(0); |
| } |
| |
| |
| typedef float tCTM[3][3]; |
| |
| static unsigned LoadWPG2Flags(Image *image,char Precision,float *Angle,tCTM *CTM) |
| { |
| const unsigned char TPR=1,TRN=2,SKW=4,SCL=8,ROT=0x10,OID=0x20,LCK=0x80; |
| ssize_t x; |
| unsigned DenX; |
| unsigned Flags; |
| |
| (void) memset(*CTM,0,sizeof(*CTM)); /*CTM.erase();CTM.resize(3,3);*/ |
| (*CTM)[0][0]=1; |
| (*CTM)[1][1]=1; |
| (*CTM)[2][2]=1; |
| |
| Flags=ReadBlobLSBShort(image); |
| if(Flags & LCK) x=ReadBlobLSBLong(image); /*Edit lock*/ |
| if(Flags & OID) |
| { |
| if(Precision==0) |
| {x=ReadBlobLSBShort(image);} /*ObjectID*/ |
| else |
| {x=ReadBlobLSBLong(image);} /*ObjectID (Double precision)*/ |
| } |
| if(Flags & ROT) |
| { |
| x=ReadBlobLSBLong(image); /*Rot Angle*/ |
| if(Angle) *Angle=x/65536.0; |
| } |
| if(Flags & (ROT|SCL)) |
| { |
| x=ReadBlobLSBLong(image); /*Sx*cos()*/ |
| (*CTM)[0][0] = (float)x/0x10000; |
| x=ReadBlobLSBLong(image); /*Sy*cos()*/ |
| (*CTM)[1][1] = (float)x/0x10000; |
| } |
| if(Flags & (ROT|SKW)) |
| { |
| x=ReadBlobLSBLong(image); /*Kx*sin()*/ |
| (*CTM)[1][0] = (float)x/0x10000; |
| x=ReadBlobLSBLong(image); /*Ky*sin()*/ |
| (*CTM)[0][1] = (float)x/0x10000; |
| } |
| if(Flags & TRN) |
| { |
| x=ReadBlobLSBLong(image); DenX=ReadBlobLSBShort(image); /*Tx*/ |
| if(x>=0) (*CTM)[0][2] = (float)x+(float)DenX/0x10000; |
| else (*CTM)[0][2] = (float)x-(float)DenX/0x10000; |
| x=ReadBlobLSBLong(image); DenX=ReadBlobLSBShort(image); /*Ty*/ |
| (*CTM)[1][2]=(float)x + ((x>=0)?1:-1)*(float)DenX/0x10000; |
| if(x>=0) (*CTM)[1][2] = (float)x+(float)DenX/0x10000; |
| else (*CTM)[1][2] = (float)x-(float)DenX/0x10000; |
| } |
| if(Flags & TPR) |
| { |
| x=ReadBlobLSBShort(image); DenX=ReadBlobLSBShort(image); /*Px*/ |
| (*CTM)[2][0] = x + (float)DenX/0x10000;; |
| x=ReadBlobLSBShort(image); DenX=ReadBlobLSBShort(image); /*Py*/ |
| (*CTM)[2][1] = x + (float)DenX/0x10000; |
| } |
| return(Flags); |
| } |
| |
| |
| static Image *ExtractPostscript(Image *image,const ImageInfo *image_info, |
| MagickOffsetType PS_Offset,ssize_t PS_Size,ExceptionInfo *exception) |
| { |
| char |
| postscript_file[MaxTextExtent]; |
| |
| const MagicInfo |
| *magic_info; |
| |
| FILE |
| *ps_file; |
| |
| ImageInfo |
| *clone_info; |
| |
| Image |
| *image2; |
| |
| unsigned char |
| magick[2*MaxTextExtent]; |
| |
| |
| if ((clone_info=CloneImageInfo(image_info)) == NULL) |
| return(image); |
| clone_info->blob=(void *) NULL; |
| clone_info->length=0; |
| |
| /* Obtain temporary file */ |
| AcquireUniqueFilename(postscript_file); |
| ps_file=OpenMagickStream(postscript_file,"wb"); |
| if (ps_file == (FILE *) NULL) |
| goto FINISH; |
| |
| /* Copy postscript to temporary file */ |
| (void) SeekBlob(image,PS_Offset,SEEK_SET); |
| (void) ReadBlob(image, 2*MaxTextExtent, magick); |
| |
| (void) SeekBlob(image,PS_Offset,SEEK_SET); |
| while(PS_Size-- > 0) |
| { |
| (void) fputc(ReadBlobByte(image),ps_file); |
| } |
| (void) fclose(ps_file); |
| |
| /* Detect file format - Check magic.mgk configuration file. */ |
| magic_info=GetMagicInfo(magick,2*MaxTextExtent,exception); |
| if(magic_info == (const MagicInfo *) NULL) goto FINISH_UNL; |
| /* printf("Detected:%s \n",magic_info->name); */ |
| if(exception->severity != UndefinedException) goto FINISH_UNL; |
| if(magic_info->name == (char *) NULL) goto FINISH_UNL; |
| |
| (void) CopyMagickMemory(clone_info->magick,magic_info->name,MaxTextExtent); |
| |
| /* Read nested image */ |
| /*FormatString(clone_info->filename,"%s:%s",magic_info->name,postscript_file);*/ |
| FormatMagickString(clone_info->filename,MaxTextExtent,"%s",postscript_file); |
| image2=ReadImage(clone_info,exception); |
| |
| if (!image2) |
| goto FINISH_UNL; |
| |
| /* |
| Replace current image with new image while copying base image |
| attributes. |
| */ |
| (void) CopyMagickMemory(image2->filename,image->filename,MaxTextExtent); |
| (void) CopyMagickMemory(image2->magick_filename,image->magick_filename,MaxTextExtent); |
| (void) CopyMagickMemory(image2->magick,image->magick,MaxTextExtent); |
| image2->depth=image->depth; |
| DestroyBlob(image2); |
| image2->blob=ReferenceBlob(image->blob); |
| |
| if ((image->rows == 0) || (image->columns == 0)) |
| DeleteImageFromList(&image); |
| |
| AppendImageToList(&image,image2); |
| |
| FINISH_UNL: |
| (void) RelinquishUniqueFileResource(postscript_file); |
| FINISH: |
| DestroyImageInfo(clone_info); |
| return(image); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d W P G I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Method ReadWPGImage reads an WPG X image file and returns it. It |
| % allocates the memory necessary for the new Image structure and returns a |
| % pointer to the new image. |
| % |
| % The format of the ReadWPGImage method is: |
| % |
| % Image *ReadWPGImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o image: Method ReadWPGImage returns a pointer to the image after |
| % reading. A null image is returned if there is a memory shortage or if |
| % the image cannot be read. |
| % |
| % o image_info: Specifies a pointer to a ImageInfo structure. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static Image *ReadWPGImage(const ImageInfo *image_info, |
| ExceptionInfo *exception) |
| { |
| typedef struct |
| { |
| size_t FileId; |
| MagickOffsetType DataOffset; |
| unsigned int ProductType; |
| unsigned int FileType; |
| unsigned char MajorVersion; |
| unsigned char MinorVersion; |
| unsigned int EncryptKey; |
| unsigned int Reserved; |
| } WPGHeader; |
| |
| typedef struct |
| { |
| unsigned char RecType; |
| size_t RecordLength; |
| } WPGRecord; |
| |
| typedef struct |
| { |
| unsigned char Class; |
| unsigned char RecType; |
| size_t Extension; |
| size_t RecordLength; |
| } WPG2Record; |
| |
| typedef struct |
| { |
| unsigned HorizontalUnits; |
| unsigned VerticalUnits; |
| unsigned char PosSizePrecision; |
| } WPG2Start; |
| |
| typedef struct |
| { |
| unsigned int Width; |
| unsigned int Heigth; |
| unsigned int Depth; |
| unsigned int HorzRes; |
| unsigned int VertRes; |
| } WPGBitmapType1; |
| |
| typedef struct |
| { |
| unsigned int Width; |
| unsigned int Heigth; |
| unsigned char Depth; |
| unsigned char Compression; |
| } WPG2BitmapType1; |
| |
| typedef struct |
| { |
| unsigned int RotAngle; |
| unsigned int LowLeftX; |
| unsigned int LowLeftY; |
| unsigned int UpRightX; |
| unsigned int UpRightY; |
| unsigned int Width; |
| unsigned int Heigth; |
| unsigned int Depth; |
| unsigned int HorzRes; |
| unsigned int VertRes; |
| } WPGBitmapType2; |
| |
| typedef struct |
| { |
| unsigned int StartIndex; |
| unsigned int NumOfEntries; |
| } WPGColorMapRec; |
| |
| typedef struct { |
| size_t PS_unknown1; |
| unsigned int PS_unknown2; |
| unsigned int PS_unknown3; |
| } WPGPSl1Record; |
| |
| Image |
| *image, |
| *rotated_image; |
| |
| unsigned int |
| status; |
| |
| WPGHeader |
| Header; |
| |
| WPGRecord |
| Rec; |
| |
| WPG2Record |
| Rec2; |
| |
| WPG2Start StartWPG; |
| |
| WPGBitmapType1 |
| BitmapHeader1; |
| |
| WPG2BitmapType1 |
| Bitmap2Header1; |
| |
| WPGBitmapType2 |
| BitmapHeader2; |
| |
| WPGColorMapRec |
| WPG_Palette; |
| |
| int |
| i, |
| bpp, |
| WPG2Flags; |
| |
| ssize_t |
| ldblk; |
| |
| size_t |
| one; |
| |
| unsigned char |
| *BImgBuff; |
| |
| tCTM CTM; /*current transform matrix*/ |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickSignature); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickSignature); |
| one=1; |
| image=AcquireImage(image_info); |
| image->depth=8; |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| /* |
| Read WPG image. |
| */ |
| Header.FileId=ReadBlobLSBLong(image); |
| Header.DataOffset=(MagickOffsetType) ReadBlobLSBLong(image); |
| Header.ProductType=ReadBlobLSBShort(image); |
| Header.FileType=ReadBlobLSBShort(image); |
| Header.MajorVersion=ReadBlobByte(image); |
| Header.MinorVersion=ReadBlobByte(image); |
| Header.EncryptKey=ReadBlobLSBShort(image); |
| Header.Reserved=ReadBlobLSBShort(image); |
| |
| if (Header.FileId!=0x435057FF || (Header.ProductType>>8)!=0x16) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| if (Header.EncryptKey!=0) |
| ThrowReaderException(CoderError,"EncryptedWPGImageFileNotSupported"); |
| |
| image->columns = 1; |
| image->rows = 1; |
| image->colors = 0; |
| bpp=0; |
| BitmapHeader2.RotAngle=0; |
| |
| switch(Header.FileType) |
| { |
| case 1: /* WPG level 1 */ |
| while(!EOFBlob(image)) /* object parser loop */ |
| { |
| (void) SeekBlob(image,Header.DataOffset,SEEK_SET); |
| if(EOFBlob(image)) |
| break; |
| |
| Rec.RecType=(i=ReadBlobByte(image)); |
| if(i==EOF) |
| break; |
| Rd_WP_DWORD(image,&Rec.RecordLength); |
| if(EOFBlob(image)) |
| break; |
| |
| Header.DataOffset=TellBlob(image)+Rec.RecordLength; |
| |
| switch(Rec.RecType) |
| { |
| case 0x0B: /* bitmap type 1 */ |
| BitmapHeader1.Width=ReadBlobLSBShort(image); |
| BitmapHeader1.Heigth=ReadBlobLSBShort(image); |
| BitmapHeader1.Depth=ReadBlobLSBShort(image); |
| BitmapHeader1.HorzRes=ReadBlobLSBShort(image); |
| BitmapHeader1.VertRes=ReadBlobLSBShort(image); |
| |
| if(BitmapHeader1.HorzRes && BitmapHeader1.VertRes) |
| { |
| image->units=PixelsPerCentimeterResolution; |
| image->x_resolution=BitmapHeader1.HorzRes/470.0; |
| image->y_resolution=BitmapHeader1.VertRes/470.0; |
| } |
| image->columns=BitmapHeader1.Width; |
| image->rows=BitmapHeader1.Heigth; |
| bpp=BitmapHeader1.Depth; |
| |
| goto UnpackRaster; |
| |
| case 0x0E: /*Color palette */ |
| WPG_Palette.StartIndex=ReadBlobLSBShort(image); |
| WPG_Palette.NumOfEntries=ReadBlobLSBShort(image); |
| |
| image->colors=WPG_Palette.NumOfEntries; |
| if (!AcquireImageColormap(image,image->colors)) |
| goto NoMemory; |
| for (i=WPG_Palette.StartIndex; |
| i < (int)WPG_Palette.NumOfEntries; i++) |
| { |
| image->colormap[i].red=ScaleCharToQuantum((unsigned char) |
| ReadBlobByte(image)); |
| image->colormap[i].green=ScaleCharToQuantum((unsigned char) |
| ReadBlobByte(image)); |
| image->colormap[i].blue=ScaleCharToQuantum((unsigned char) |
| ReadBlobByte(image)); |
| } |
| break; |
| |
| case 0x11: /* Start PS l1 */ |
| if(Rec.RecordLength > 8) |
| image=ExtractPostscript(image,image_info, |
| TellBlob(image)+8, /* skip PS header in the wpg */ |
| (ssize_t) Rec.RecordLength-8,exception); |
| break; |
| |
| case 0x14: /* bitmap type 2 */ |
| BitmapHeader2.RotAngle=ReadBlobLSBShort(image); |
| BitmapHeader2.LowLeftX=ReadBlobLSBShort(image); |
| BitmapHeader2.LowLeftY=ReadBlobLSBShort(image); |
| BitmapHeader2.UpRightX=ReadBlobLSBShort(image); |
| BitmapHeader2.UpRightY=ReadBlobLSBShort(image); |
| BitmapHeader2.Width=ReadBlobLSBShort(image); |
| BitmapHeader2.Heigth=ReadBlobLSBShort(image); |
| BitmapHeader2.Depth=ReadBlobLSBShort(image); |
| BitmapHeader2.HorzRes=ReadBlobLSBShort(image); |
| BitmapHeader2.VertRes=ReadBlobLSBShort(image); |
| |
| image->units=PixelsPerCentimeterResolution; |
| image->page.width=(unsigned int) |
| ((BitmapHeader2.LowLeftX-BitmapHeader2.UpRightX)/470.0); |
| image->page.height=(unsigned int) |
| ((BitmapHeader2.LowLeftX-BitmapHeader2.UpRightY)/470.0); |
| image->page.x=(int) (BitmapHeader2.LowLeftX/470.0); |
| image->page.y=(int) (BitmapHeader2.LowLeftX/470.0); |
| if(BitmapHeader2.HorzRes && BitmapHeader2.VertRes) |
| { |
| image->x_resolution=BitmapHeader2.HorzRes/470.0; |
| image->y_resolution=BitmapHeader2.VertRes/470.0; |
| } |
| image->columns=BitmapHeader2.Width; |
| image->rows=BitmapHeader2.Heigth; |
| bpp=BitmapHeader2.Depth; |
| |
| UnpackRaster: |
| if ((image->colors == 0) && (bpp != 24)) |
| { |
| image->colors=one << bpp; |
| if (!AcquireImageColormap(image,image->colors)) |
| { |
| NoMemory: |
| ThrowReaderException(ResourceLimitError, |
| "MemoryAllocationFailed"); |
| } |
| /* printf("Load default colormap \n"); */ |
| for (i=0; (i < (int) image->colors) && (i < 256); i++) |
| { |
| image->colormap[i].red=ScaleCharToQuantum(WPG1_Palette[i].Red); |
| image->colormap[i].green=ScaleCharToQuantum(WPG1_Palette[i].Green); |
| image->colormap[i].blue=ScaleCharToQuantum(WPG1_Palette[i].Blue); |
| } |
| } |
| else |
| { |
| if (bpp < 24) |
| if ( (image->colors < (one << bpp)) && (bpp != 24) ) |
| image->colormap=(PixelPacket *) ResizeQuantumMemory( |
| image->colormap,(size_t) (one << bpp), |
| sizeof(*image->colormap)); |
| } |
| |
| if (bpp == 1) |
| { |
| if(image->colormap[0].red==0 && |
| image->colormap[0].green==0 && |
| image->colormap[0].blue==0 && |
| image->colormap[1].red==0 && |
| image->colormap[1].green==0 && |
| image->colormap[1].blue==0) |
| { /* fix crippled monochrome palette */ |
| image->colormap[1].red = |
| image->colormap[1].green = |
| image->colormap[1].blue = QuantumRange; |
| } |
| } |
| |
| if(UnpackWPGRaster(image,bpp) < 0) |
| /* The raster cannot be unpacked */ |
| { |
| DecompressionFailed: |
| ThrowReaderException(CoderError,"UnableToDecompressImage"); |
| } |
| |
| if(Rec.RecType==0x14 && BitmapHeader2.RotAngle!=0 && !image_info->ping) |
| { |
| /* flop command */ |
| if(BitmapHeader2.RotAngle & 0x8000) |
| { |
| rotated_image = FlopImage(image, exception); |
| rotated_image->blob = image->blob; |
| DuplicateBlob(rotated_image,image); |
| (void) RemoveLastImageFromList(&image); |
| AppendImageToList(&image,rotated_image); |
| } |
| /* flip command */ |
| if(BitmapHeader2.RotAngle & 0x2000) |
| { |
| rotated_image = FlipImage(image, exception); |
| rotated_image->blob = image->blob; |
| DuplicateBlob(rotated_image,image); |
| (void) RemoveLastImageFromList(&image); |
| AppendImageToList(&image,rotated_image); |
| } |
| |
| /* rotate command */ |
| if(BitmapHeader2.RotAngle & 0x0FFF) |
| { |
| rotated_image = RotateImage(image, (BitmapHeader2.RotAngle & 0x0FFF), exception); |
| rotated_image->blob = image->blob; |
| DuplicateBlob(rotated_image,image); |
| (void) RemoveLastImageFromList(&image); |
| AppendImageToList(&image,rotated_image); |
| } |
| } |
| |
| /* Allocate next image structure. */ |
| AcquireNextImage(image_info,image); |
| image->depth=8; |
| if (image->next == (Image *) NULL) |
| goto Finish; |
| image=SyncNextImageInList(image); |
| image->columns=image->rows=0; |
| image->colors=0; |
| break; |
| |
| case 0x1B: /* Postscript l2 */ |
| if(Rec.RecordLength>0x3C) |
| image=ExtractPostscript(image,image_info, |
| TellBlob(image)+0x3C, /* skip PS l2 header in the wpg */ |
| (ssize_t) Rec.RecordLength-0x3C,exception); |
| break; |
| } |
| } |
| break; |
| |
| case 2: /* WPG level 2 */ |
| (void) memset(CTM,0,sizeof(CTM)); |
| StartWPG.PosSizePrecision = 0; |
| while(!EOFBlob(image)) /* object parser loop */ |
| { |
| (void) SeekBlob(image,Header.DataOffset,SEEK_SET); |
| if(EOFBlob(image)) |
| break; |
| |
| Rec2.Class=(i=ReadBlobByte(image)); |
| if(i==EOF) |
| break; |
| Rec2.RecType=(i=ReadBlobByte(image)); |
| if(i==EOF) |
| break; |
| Rd_WP_DWORD(image,&Rec2.Extension); |
| Rd_WP_DWORD(image,&Rec2.RecordLength); |
| if(EOFBlob(image)) |
| break; |
| |
| Header.DataOffset=TellBlob(image)+Rec2.RecordLength; |
| |
| switch(Rec2.RecType) |
| { |
| case 1: |
| StartWPG.HorizontalUnits=ReadBlobLSBShort(image); |
| StartWPG.VerticalUnits=ReadBlobLSBShort(image); |
| StartWPG.PosSizePrecision=ReadBlobByte(image); |
| break; |
| case 0x0C: /* Color palette */ |
| WPG_Palette.StartIndex=ReadBlobLSBShort(image); |
| WPG_Palette.NumOfEntries=ReadBlobLSBShort(image); |
| |
| image->colors=WPG_Palette.NumOfEntries; |
| if (AcquireImageColormap(image,image->colors) == MagickFalse) |
| ThrowReaderException(ResourceLimitError, |
| "MemoryAllocationFailed"); |
| for (i=WPG_Palette.StartIndex; |
| i < (int)WPG_Palette.NumOfEntries; i++) |
| { |
| image->colormap[i].red=ScaleCharToQuantum((char) |
| ReadBlobByte(image)); |
| image->colormap[i].green=ScaleCharToQuantum((char) |
| ReadBlobByte(image)); |
| image->colormap[i].blue=ScaleCharToQuantum((char) |
| ReadBlobByte(image)); |
| (void) ReadBlobByte(image); /*Opacity??*/ |
| } |
| break; |
| case 0x0E: |
| Bitmap2Header1.Width=ReadBlobLSBShort(image); |
| Bitmap2Header1.Heigth=ReadBlobLSBShort(image); |
| Bitmap2Header1.Depth=ReadBlobByte(image); |
| Bitmap2Header1.Compression=ReadBlobByte(image); |
| |
| if(Bitmap2Header1.Compression > 1) |
| continue; /*Unknown compression method */ |
| switch(Bitmap2Header1.Depth) |
| { |
| case 1: |
| bpp=1; |
| break; |
| case 2: |
| bpp=2; |
| break; |
| case 3: |
| bpp=4; |
| break; |
| case 4: |
| bpp=8; |
| break; |
| case 8: |
| bpp=24; |
| break; |
| default: |
| continue; /*Ignore raster with unknown depth*/ |
| } |
| image->columns=Bitmap2Header1.Width; |
| image->rows=Bitmap2Header1.Heigth; |
| |
| if ((image->colors == 0) && (bpp != 24)) |
| { |
| size_t |
| one; |
| |
| one=1; |
| image->colors=one << bpp; |
| if (!AcquireImageColormap(image,image->colors)) |
| goto NoMemory; |
| } |
| else |
| { |
| if(bpp < 24) |
| if( image->colors<(one << bpp) && bpp!=24 ) |
| image->colormap=(PixelPacket *) ResizeQuantumMemory( |
| image->colormap,(size_t) (one << bpp), |
| sizeof(*image->colormap)); |
| } |
| |
| |
| switch(Bitmap2Header1.Compression) |
| { |
| case 0: /*Uncompressed raster*/ |
| { |
| ldblk=(ssize_t) ((bpp*image->columns+7)/8); |
| BImgBuff=(unsigned char *) AcquireQuantumMemory((size_t) |
| ldblk,sizeof(*BImgBuff)); |
| if (BImgBuff == (unsigned char *) NULL) |
| goto NoMemory; |
| |
| for(i=0; i< (ssize_t) image->rows; i++) |
| { |
| (void) ReadBlob(image,ldblk,BImgBuff); |
| InsertRow(BImgBuff,i,image,bpp); |
| } |
| |
| if(BImgBuff) |
| BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff);; |
| break; |
| } |
| case 1: /*RLE for WPG2 */ |
| { |
| if( UnpackWPG2Raster(image,bpp) < 0) |
| goto DecompressionFailed; |
| break; |
| } |
| } |
| |
| if(CTM[0][0]<0 && !image_info->ping) |
| { /*?? RotAngle=360-RotAngle;*/ |
| rotated_image = FlopImage(image, exception); |
| rotated_image->blob = image->blob; |
| DuplicateBlob(rotated_image,image); |
| (void) RemoveLastImageFromList(&image); |
| AppendImageToList(&image,rotated_image); |
| /* Try to change CTM according to Flip - I am not sure, must be checked. |
| Tx(0,0)=-1; Tx(1,0)=0; Tx(2,0)=0; |
| Tx(0,1)= 0; Tx(1,1)=1; Tx(2,1)=0; |
| Tx(0,2)=(WPG._2Rect.X_ur+WPG._2Rect.X_ll); |
| Tx(1,2)=0; Tx(2,2)=1; */ |
| } |
| if(CTM[1][1]<0 && !image_info->ping) |
| { /*?? RotAngle=360-RotAngle;*/ |
| rotated_image = FlipImage(image, exception); |
| rotated_image->blob = image->blob; |
| DuplicateBlob(rotated_image,image); |
| (void) RemoveLastImageFromList(&image); |
| AppendImageToList(&image,rotated_image); |
| /* Try to change CTM according to Flip - I am not sure, must be checked. |
| float_matrix Tx(3,3); |
| Tx(0,0)= 1; Tx(1,0)= 0; Tx(2,0)=0; |
| Tx(0,1)= 0; Tx(1,1)=-1; Tx(2,1)=0; |
| Tx(0,2)= 0; Tx(1,2)=(WPG._2Rect.Y_ur+WPG._2Rect.Y_ll); |
| Tx(2,2)=1; */ |
| } |
| |
| |
| /* Allocate next image structure. */ |
| AcquireNextImage(image_info,image); |
| image->depth=8; |
| if (image->next == (Image *) NULL) |
| goto Finish; |
| image=SyncNextImageInList(image); |
| image->columns=image->rows=1; |
| image->colors=0; |
| break; |
| |
| case 0x12: /* Postscript WPG2*/ |
| i=ReadBlobLSBShort(image); |
| if(Rec2.RecordLength > (unsigned int) i) |
| image=ExtractPostscript(image,image_info, |
| TellBlob(image)+i, /*skip PS header in the wpg2*/ |
| (ssize_t) (Rec2.RecordLength-i-2),exception); |
| break; |
| |
| case 0x1B: /*bitmap rectangle*/ |
| WPG2Flags = LoadWPG2Flags(image,StartWPG.PosSizePrecision,NULL,&CTM); |
| (void) WPG2Flags; |
| break; |
| } |
| } |
| |
| break; |
| |
| default: |
| { |
| ThrowReaderException(CoderError,"DataEncodingSchemeIsNotSupported"); |
| } |
| } |
| |
| Finish: |
| (void) CloseBlob(image); |
| |
| { |
| Image |
| *p; |
| |
| ssize_t |
| scene=0; |
| |
| /* |
| Rewind list, removing any empty images while rewinding. |
| */ |
| p=image; |
| image=NULL; |
| while (p != (Image *) NULL) |
| { |
| Image *tmp=p; |
| if ((p->rows == 0) || (p->columns == 0)) { |
| p=p->previous; |
| DeleteImageFromList(&tmp); |
| } else { |
| image=p; |
| p=p->previous; |
| } |
| } |
| /* |
| Fix scene numbers. |
| */ |
| for (p=image; p != (Image *) NULL; p=p->next) |
| p->scene=(size_t) scene++; |
| } |
| if (image == (Image *) NULL) |
| ThrowReaderException(CorruptImageError, |
| "ImageFileDoesNotContainAnyImageData"); |
| return(image); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r W P G I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Method RegisterWPGImage adds attributes for the WPG image format to |
| % the list of supported formats. The attributes include the image format |
| % tag, a method to read and/or write the format, whether the format |
| % supports the saving of more than one frame to the same file or blob, |
| % whether the format supports native in-memory I/O, and a brief |
| % description of the format. |
| % |
| % The format of the RegisterWPGImage method is: |
| % |
| % size_t RegisterWPGImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterWPGImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=SetMagickInfo("WPG"); |
| entry->decoder=(DecodeImageHandler *) ReadWPGImage; |
| entry->magick=(IsImageFormatHandler *) IsWPG; |
| entry->description=AcquireString("Word Perfect Graphics"); |
| entry->module=ConstantString("WPG"); |
| entry->seekable_stream=MagickTrue; |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r W P G I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Method UnregisterWPGImage removes format registrations made by the |
| % WPG module from the list of supported formats. |
| % |
| % The format of the UnregisterWPGImage method is: |
| % |
| % UnregisterWPGImage(void) |
| % |
| */ |
| ModuleExport void UnregisterWPGImage(void) |
| { |
| (void) UnregisterMagickInfo("WPG"); |
| } |