/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % RRRR GGGG BBBB % % R R G B B % % RRRR G GG BBBB % % R R G G B B % % R R GGG BBBB % % % % % % Read/Write Raw RGB Image Format % % % % Software Design % % Cristy % % July 1992 % % % % % % Copyright 1999-2021 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 % % % % https://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 "MagickCore/studio.h" #include "MagickCore/blob.h" #include "MagickCore/blob-private.h" #include "MagickCore/cache.h" #include "MagickCore/channel.h" #include "MagickCore/colorspace.h" #include "MagickCore/colorspace-private.h" #include "MagickCore/constitute.h" #include "MagickCore/exception.h" #include "MagickCore/exception-private.h" #include "MagickCore/image.h" #include "MagickCore/image-private.h" #include "MagickCore/list.h" #include "MagickCore/magick.h" #include "MagickCore/memory_.h" #include "MagickCore/monitor.h" #include "MagickCore/monitor-private.h" #include "MagickCore/pixel-accessor.h" #include "MagickCore/quantum-private.h" #include "MagickCore/static.h" #include "MagickCore/statistic.h" #include "MagickCore/string_.h" #include "MagickCore/module.h" #include "MagickCore/utility.h" /* Forward declarations. */ static MagickBooleanType WriteRGBImage(const ImageInfo *,Image *,ExceptionInfo *); /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d R G B I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadRGBImage() reads an image of raw RGB, RGBA, or RGBO samples 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 ReadRGBImage method is: % % Image *ReadRGBImage(const ImageInfo *image_info, % ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadRGBImage(const ImageInfo *image_info,ExceptionInfo *exception) { const void *stream; Image *canvas_image, *image; MagickBooleanType status; MagickOffsetType scene; QuantumInfo *quantum_info; QuantumType quantum_type; ssize_t i; size_t length; ssize_t count, y; unsigned char *pixels; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickCoreSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickCoreSignature); image=AcquireImage(image_info,exception); if ((image->columns == 0) || (image->rows == 0)) ThrowReaderException(OptionError,"MustSpecifyImageSize"); if (image_info->interlace != PartitionInterlace) { status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse) ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", image->filename); } /* Create virtual canvas to support cropping (i.e. image.rgb[100x100+10+20]). */ canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse, exception); if(canvas_image == (Image *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); (void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod, exception); quantum_info=AcquireQuantumInfo(image_info,canvas_image); if (quantum_info == (QuantumInfo *) NULL) { canvas_image=DestroyImage(canvas_image); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } quantum_type=RGBQuantum; if (LocaleCompare(image_info->magick,"RGBA") == 0) { quantum_type=RGBAQuantum; image->alpha_trait=BlendPixelTrait; canvas_image->alpha_trait=BlendPixelTrait; } if (LocaleCompare(image_info->magick,"RGBO") == 0) { quantum_type=RGBOQuantum; image->alpha_trait=BlendPixelTrait; canvas_image->alpha_trait=BlendPixelTrait; } pixels=GetQuantumPixels(quantum_info); if (image_info->number_scenes != 0) while (image->scene < image_info->scene) { /* Skip to next image. */ image->scene++; length=GetQuantumExtent(canvas_image,quantum_info,quantum_type); for (y=0; y < (ssize_t) image->rows; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } } count=0; length=0; scene=0; status=MagickTrue; stream=NULL; do { /* Read pixels to virtual canvas image then push to image. */ if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; status=SetImageExtent(image,image->columns,image->rows,exception); if (status == MagickFalse) break; switch (image_info->interlace) { case NoInterlace: default: { /* No interlacing: RGBRGBRGBRGBRGBRGB... */ if (scene == 0) { length=GetQuantumExtent(canvas_image,quantum_info,quantum_type); stream=ReadBlobStream(image,length,pixels,&count); } for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,quantum_type,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=QueueAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelRed(image,GetPixelRed(canvas_image,p),q); SetPixelGreen(image,GetPixelGreen(canvas_image,p),q); SetPixelBlue(image,GetPixelBlue(canvas_image,p),q); SetPixelAlpha(image,OpaqueAlpha,q); if (image->alpha_trait != UndefinedPixelTrait) SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } break; } case LineInterlace: { static QuantumType quantum_types[4] = { RedQuantum, GreenQuantum, BlueQuantum, AlphaQuantum }; /* Line interlacing: RRR...GGG...BBB...RRR...GGG...BBB... */ if (LocaleCompare(image_info->magick,"RGBO") == 0) quantum_types[3]=OpacityQuantum; if (scene == 0) { length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum); stream=ReadBlobStream(image,length,pixels,&count); } for (y=0; y < (ssize_t) image->extract_info.height; y++) { for (i=0; i < (ssize_t) (image->alpha_trait != UndefinedPixelTrait ? 4 : 3); i++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } quantum_type=quantum_types[i]; q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,quantum_type,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x, 0,canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { switch (quantum_type) { case RedQuantum: { SetPixelRed(image,GetPixelRed(canvas_image,p),q); break; } case GreenQuantum: { SetPixelGreen(image,GetPixelGreen(canvas_image,p),q); break; } case BlueQuantum: { SetPixelBlue(image,GetPixelBlue(canvas_image,p),q); break; } case OpacityQuantum: { SetPixelOpacity(image,GetPixelOpacity(canvas_image,p),q); break; } case AlphaQuantum: { SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q); break; } default: break; } p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } } break; } case PlaneInterlace: { /* Plane interlacing: RRRRRR...GGGGGG...BBBBBB... */ if (scene == 0) { length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum); stream=ReadBlobStream(image,length,pixels,&count); } for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,RedQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelRed(image,GetPixelRed(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,1,6); if (status == MagickFalse) break; } for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,GreenQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelGreen(image,GetPixelGreen(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,2,6); if (status == MagickFalse) break; } for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,BlueQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelBlue(image,GetPixelBlue(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,4,6); if (status == MagickFalse) break; } if (image->alpha_trait != UndefinedPixelTrait) { for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,AlphaQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image, canvas_image->extract_info.x,0,canvas_image->columns,1, exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,5,6); if (status == MagickFalse) break; } } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,6,6); if (status == MagickFalse) break; } break; } case PartitionInterlace: { /* Partition interlacing: RRRRRR..., GGGGGG..., BBBBBB... */ AppendImageFormat("R",image->filename); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) break; if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } length=GetQuantumExtent(canvas_image,quantum_info,RedQuantum); for (i=0; i < (ssize_t) scene; i++) { for (y=0; y < (ssize_t) image->extract_info.height; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } if (count != (ssize_t) length) break; } stream=ReadBlobStream(image,length,pixels,&count); for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,RedQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelRed(image,GetPixelRed(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,1,5); if (status == MagickFalse) break; } (void) CloseBlob(image); AppendImageFormat("G",image->filename); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) break; length=GetQuantumExtent(canvas_image,quantum_info,GreenQuantum); for (i=0; i < (ssize_t) scene; i++) { for (y=0; y < (ssize_t) image->extract_info.height; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } if (count != (ssize_t) length) break; } stream=ReadBlobStream(image,length,pixels,&count); for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,GreenQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelGreen(image,GetPixelGreen(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,2,5); if (status == MagickFalse) break; } (void) CloseBlob(image); AppendImageFormat("B",image->filename); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) break; length=GetQuantumExtent(canvas_image,quantum_info,BlueQuantum); for (i=0; i < (ssize_t) scene; i++) { for (y=0; y < (ssize_t) image->extract_info.height; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } if (count != (ssize_t) length) break; } stream=ReadBlobStream(image,length,pixels,&count); for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,BlueQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelBlue(image,GetPixelBlue(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,3,5); if (status == MagickFalse) break; } if (image->alpha_trait != UndefinedPixelTrait) { (void) CloseBlob(image); AppendImageFormat("A",image->filename); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) break; length=GetQuantumExtent(canvas_image,quantum_info,AlphaQuantum); for (i=0; i < (ssize_t) scene; i++) { for (y=0; y < (ssize_t) image->extract_info.height; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } if (count != (ssize_t) length) break; } stream=ReadBlobStream(image,length,pixels,&count); for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1, exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,BlueQuantum,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x, 0,canvas_image->columns,1,exception); q=GetAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelAlpha(image,GetPixelAlpha(canvas_image,p),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,4,5); if (status == MagickFalse) break; } } (void) CloseBlob(image); if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,5,5); if (status == MagickFalse) break; } break; } } if (status == MagickFalse) break; SetQuantumImageType(image,quantum_type); /* Proceed to next image. */ if (image_info->number_scenes != 0) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; if (count == (ssize_t) length) { /* Allocate next image structure. */ AcquireNextImage(image_info,image,exception); if (GetNextImageInList(image) == (Image *) NULL) { status=MagickFalse; break; } image=SyncNextImageInList(image); status=SetImageProgress(image,LoadImagesTag,TellBlob(image), GetBlobSize(image)); if (status == MagickFalse) break; } scene++; } while (count == (ssize_t) length); quantum_info=DestroyQuantumInfo(quantum_info); canvas_image=DestroyImage(canvas_image); (void) CloseBlob(image); if (status == MagickFalse) return(DestroyImageList(image)); return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d R G B 5 6 5 I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadGRAYImage() reads an image of raw RGB 5-6-5 samples 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 ReadGRAYImage method is: % % Image *ReadGRAYImage(const ImageInfo *image_info, % ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadRGB565Image(const ImageInfo *image_info, ExceptionInfo *exception) { const void *stream; Image *canvas_image, *image; MagickBooleanType status; MagickOffsetType scene; QuantumInfo *quantum_info; QuantumType quantum_type; size_t length; ssize_t count, y; unsigned char *pixels; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickCoreSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickCoreSignature); image=AcquireImage(image_info,exception); if ((image->columns == 0) || (image->rows == 0)) ThrowReaderException(OptionError,"MustSpecifyImageSize"); image->depth=16; if (image_info->interlace != PartitionInterlace) { status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse) ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", image->filename); } /* Create virtual canvas to support cropping (i.e. image.rgb[100x100+10+20]). */ canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse, exception); if(canvas_image == (Image *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); (void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod, exception); quantum_info=AcquireQuantumInfo(image_info,canvas_image); if (quantum_info == (QuantumInfo *) NULL) { canvas_image=DestroyImage(canvas_image); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } quantum_type=GrayQuantum; pixels=GetQuantumPixels(quantum_info); if (image_info->number_scenes != 0) while (image->scene < image_info->scene) { /* Skip to next image. */ image->scene++; length=GetQuantumExtent(canvas_image,quantum_info,quantum_type); for (y=0; y < (ssize_t) image->rows; y++) { stream=ReadBlobStream(image,length,pixels,&count); if (count != (ssize_t) length) break; } } count=0; length=0; scene=0; status=MagickTrue; stream=NULL; do { /* Read pixels to virtual canvas image then push to image. */ if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; status=SetImageExtent(image,image->columns,image->rows,exception); if (status == MagickFalse) break; /* No interlacing: GGG... */ if (scene == 0) { length=GetQuantumExtent(canvas_image,quantum_info,quantum_type); stream=ReadBlobStream(image,length,pixels,&count); } for (y=0; y < (ssize_t) image->extract_info.height; y++) { const Quantum *magick_restrict p; Quantum *magick_restrict q; ssize_t x; if (count != (ssize_t) length) { status=MagickFalse; ThrowFileException(exception,CorruptImageError, "UnexpectedEndOfFile",image->filename); break; } q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception); if (q == (Quantum *) NULL) break; length=ImportQuantumPixels(canvas_image,(CacheView *) NULL, quantum_info,quantum_type,(unsigned char *) stream,exception); if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse) break; if (((y-image->extract_info.y) >= 0) && ((y-image->extract_info.y) < (ssize_t) image->rows)) { p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0, canvas_image->columns,1,exception); q=QueueAuthenticPixels(image,0,y-image->extract_info.y, image->columns,1,exception); if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) break; for (x=0; x < (ssize_t) image->columns; x++) { unsigned short pixel; pixel=(unsigned short) ScaleQuantumToShort(GetPixelGray( canvas_image,p)); SetPixelRed(image,(Quantum) (((pixel >> 11) & 0x1f) << 11),q); SetPixelGreen(image,(Quantum) (((pixel >> 5) & 0x3f) << 10),q); SetPixelBlue(image,(Quantum) ((pixel & 0x1f) << 11),q); p+=GetPixelChannels(canvas_image); q+=GetPixelChannels(image); } if (SyncAuthenticPixels(image,exception) == MagickFalse) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } stream=ReadBlobStream(image,length,pixels,&count); } if (status == MagickFalse) break; SetQuantumImageType(image,quantum_type); /* Proceed to next image. */ if (image_info->number_scenes != 0) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; if (count == (ssize_t) length) { /* Allocate next image structure. */ AcquireNextImage(image_info,image,exception); if (GetNextImageInList(image) == (Image *) NULL) { status=MagickFalse; break; } image=SyncNextImageInList(image); status=SetImageProgress(image,LoadImagesTag,TellBlob(image), GetBlobSize(image)); if (status == MagickFalse) break; } scene++; } while (count == (ssize_t) length); quantum_info=DestroyQuantumInfo(quantum_info); canvas_image=DestroyImage(canvas_image); (void) CloseBlob(image); if (status == MagickFalse) return(DestroyImageList(image)); return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r R G B I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterRGBImage() adds attributes for the RGB 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 RegisterRGBImage method is: % % size_t RegisterRGBImage(void) % */ ModuleExport size_t RegisterRGBImage(void) { MagickInfo *entry; entry=AcquireMagickInfo("RGB","RGB", "Raw red, green, and blue samples"); entry->decoder=(DecodeImageHandler *) ReadRGBImage; entry->encoder=(EncodeImageHandler *) WriteRGBImage; entry->flags|=CoderRawSupportFlag; entry->flags|=CoderEndianSupportFlag; (void) RegisterMagickInfo(entry); entry=AcquireMagickInfo("RGB","RGBA", "Raw red, green, blue, and alpha samples"); entry->decoder=(DecodeImageHandler *) ReadRGBImage; entry->encoder=(EncodeImageHandler *) WriteRGBImage; entry->flags|=CoderRawSupportFlag; entry->flags|=CoderEndianSupportFlag; (void) RegisterMagickInfo(entry); entry=AcquireMagickInfo("RGB","RGBO", "Raw red, green, blue, and opacity samples"); entry->decoder=(DecodeImageHandler *) ReadRGBImage; entry->encoder=(EncodeImageHandler *) WriteRGBImage; entry->flags|=CoderRawSupportFlag; entry->flags|=CoderEndianSupportFlag; (void) RegisterMagickInfo(entry); entry=AcquireMagickInfo("RGB","RGB565", "Raw red, green, blue samples in 565 format"); entry->decoder=(DecodeImageHandler *) ReadRGB565Image; entry->flags|=CoderRawSupportFlag; entry->flags|=CoderEndianSupportFlag; (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r R G B I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterRGBImage() removes format registrations made by the RGB module % from the list of supported formats. % % The format of the UnregisterRGBImage method is: % % UnregisterRGBImage(void) % */ ModuleExport void UnregisterRGBImage(void) { (void) UnregisterMagickInfo("RGBO"); (void) UnregisterMagickInfo("RGBA"); (void) UnregisterMagickInfo("RGB"); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e R G B I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteRGBImage() writes an image to a file in the RGB, RGBA, or RGBO % rasterfile format. % % The format of the WriteRGBImage method is: % % MagickBooleanType WriteRGBImage(const ImageInfo *image_info, % Image *image,ExceptionInfo *exception) % % A description of each parameter follows. % % o image_info: the image info. % % o image: The image. % % o exception: return any errors or warnings in this structure. % */ static MagickBooleanType WriteRGBImage(const ImageInfo *image_info, Image *image,ExceptionInfo *exception) { MagickBooleanType status; MagickOffsetType scene; QuantumInfo *quantum_info; QuantumType quantum_type; size_t imageListLength, length; ssize_t count, y; unsigned char *pixels; /* Allocate memory for pixels. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickCoreSignature); assert(image != (Image *) NULL); assert(image->signature == MagickCoreSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); if (image_info->interlace != PartitionInterlace) { /* Open output image file. */ status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); if (status == MagickFalse) return(status); } quantum_type=RGBQuantum; if (LocaleCompare(image_info->magick,"RGBA") == 0) quantum_type=RGBAQuantum; if (LocaleCompare(image_info->magick,"RGBO") == 0) quantum_type=RGBOQuantum; scene=0; imageListLength=GetImageListLength(image); do { /* Convert MIFF to RGB raster pixels. */ (void) TransformImageColorspace(image,sRGBColorspace,exception); if ((LocaleCompare(image_info->magick,"RGBA") == 0) && (image->alpha_trait == UndefinedPixelTrait)) (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception); quantum_info=AcquireQuantumInfo(image_info,image); if (quantum_info == (QuantumInfo *) NULL) ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); pixels=(unsigned char *) GetQuantumPixels(quantum_info); switch (image_info->interlace) { case NoInterlace: default: { /* No interlacing: RGBRGBRGBRGBRGBRGB... */ for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, quantum_type,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } } break; } case LineInterlace: { /* Line interlacing: RRR...GGG...BBB...RRR...GGG...BBB... */ for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, RedQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, GreenQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, BlueQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; if (quantum_type == RGBAQuantum) { length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, AlphaQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (quantum_type == RGBOQuantum) { length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, OpacityQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } } break; } case PlaneInterlace: { /* Plane interlacing: RRRRRR...GGGGGG...BBBBBB... */ for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, RedQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,1,6); if (status == MagickFalse) break; } for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, GreenQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,2,6); if (status == MagickFalse) break; } for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, BlueQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,3,6); if (status == MagickFalse) break; } if (quantum_type == RGBAQuantum) { for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, AlphaQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,5,6); if (status == MagickFalse) break; } } if (image_info->interlace == PartitionInterlace) (void) CopyMagickString(image->filename,image_info->filename, MagickPathExtent); if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,6,6); if (status == MagickFalse) break; } break; } case PartitionInterlace: { /* Partition interlacing: RRRRRR..., GGGGGG..., BBBBBB... */ AppendImageFormat("R",image->filename); status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode : AppendBinaryBlobMode,exception); if (status == MagickFalse) return(status); for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, RedQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,1,6); if (status == MagickFalse) break; } (void) CloseBlob(image); AppendImageFormat("G",image->filename); status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode : AppendBinaryBlobMode,exception); if (status == MagickFalse) return(status); for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, GreenQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,2,6); if (status == MagickFalse) break; } (void) CloseBlob(image); AppendImageFormat("B",image->filename); status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode : AppendBinaryBlobMode,exception); if (status == MagickFalse) return(status); for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, BlueQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,3,6); if (status == MagickFalse) break; } if (quantum_type == RGBAQuantum) { (void) CloseBlob(image); AppendImageFormat("A",image->filename); status=OpenBlob(image_info,image,scene == 0 ? WriteBinaryBlobMode : AppendBinaryBlobMode,exception); if (status == MagickFalse) return(status); for (y=0; y < (ssize_t) image->rows; y++) { const Quantum *magick_restrict p; p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, AlphaQuantum,pixels,exception); count=WriteBlob(image,length,pixels); if (count != (ssize_t) length) break; } if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,5,6); if (status == MagickFalse) break; } } (void) CloseBlob(image); (void) CopyMagickString(image->filename,image_info->filename, MagickPathExtent); if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,6,6); if (status == MagickFalse) break; } break; } } quantum_info=DestroyQuantumInfo(quantum_info); if (GetNextImageInList(image) == (Image *) NULL) break; image=SyncNextImageInList(image); status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength); if (status == MagickFalse) break; } while (image_info->adjoin != MagickFalse); (void) CloseBlob(image); return(MagickTrue); }