| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % TTTTT IIIII M M % |
| % T I MM MM % |
| % T I M M M % |
| % T I M M % |
| % T IIIII M M % |
| % % |
| % % |
| % Read PSX TIM Image Format % |
| % % |
| % Software Design % |
| % John Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2013 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 "MagickCore/studio.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/cache.h" |
| #include "MagickCore/colormap.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/string_.h" |
| #include "MagickCore/module.h" |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d T I M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadTIMImage() reads a PSX TIM image file and returns it. It |
| % allocates the memory necessary for the new Image structure and returns a |
| % pointer to the new image. |
| % |
| % Contributed by os@scee.sony.co.uk. |
| % |
| % The format of the ReadTIMImage method is: |
| % |
| % Image *ReadTIMImage(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 *ReadTIMImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| { |
| typedef struct _TIMInfo |
| { |
| size_t |
| id, |
| flag; |
| } TIMInfo; |
| |
| TIMInfo |
| tim_info; |
| |
| Image |
| *image; |
| |
| int |
| bits_per_pixel, |
| has_clut; |
| |
| MagickBooleanType |
| status; |
| |
| register ssize_t |
| x; |
| |
| register Quantum |
| *q; |
| |
| register ssize_t |
| i; |
| |
| register unsigned char |
| *p; |
| |
| size_t |
| bytes_per_line, |
| height, |
| image_size, |
| pixel_mode, |
| width; |
| |
| ssize_t |
| count, |
| y; |
| |
| unsigned char |
| *tim_data, |
| *tim_pixels; |
| |
| unsigned short |
| word; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickSignature); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| /* |
| Determine if this a TIM file. |
| */ |
| tim_info.id=ReadBlobLSBLong(image); |
| do |
| { |
| /* |
| Verify TIM identifier. |
| */ |
| if (tim_info.id != 0x00000010) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| tim_info.flag=ReadBlobLSBLong(image); |
| has_clut=tim_info.flag & (1 << 3) ? 1 : 0; |
| pixel_mode=tim_info.flag & 0x07; |
| switch ((int) pixel_mode) |
| { |
| case 0: bits_per_pixel=4; break; |
| case 1: bits_per_pixel=8; break; |
| case 2: bits_per_pixel=16; break; |
| case 3: bits_per_pixel=24; break; |
| default: bits_per_pixel=4; break; |
| } |
| if (has_clut) |
| { |
| unsigned char |
| *tim_colormap; |
| |
| /* |
| Read TIM raster colormap. |
| */ |
| (void)ReadBlobLSBLong(image); |
| (void)ReadBlobLSBShort(image); |
| (void)ReadBlobLSBShort(image); |
| width=ReadBlobLSBShort(image); |
| height=ReadBlobLSBShort(image); |
| image->columns=width; |
| image->rows=height; |
| if (AcquireImageColormap(image,pixel_mode == 1 ? 256UL : 16UL,exception) == MagickFalse) |
| ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| tim_colormap=(unsigned char *) AcquireQuantumMemory(image->colors, |
| 2UL*sizeof(*tim_colormap)); |
| if (tim_colormap == (unsigned char *) NULL) |
| ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| count=ReadBlob(image,2*image->colors,tim_colormap); |
| if (count != (ssize_t) (2*image->colors)) |
| ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); |
| p=tim_colormap; |
| for (i=0; i < (ssize_t) image->colors; i++) |
| { |
| word=(*p++); |
| word|=(unsigned short) (*p++ << 8); |
| image->colormap[i].blue=ScaleCharToQuantum( |
| ScaleColor5to8(1UL*(word >> 10) & 0x1f)); |
| image->colormap[i].green=ScaleCharToQuantum( |
| ScaleColor5to8(1UL*(word >> 5) & 0x1f)); |
| image->colormap[i].red=ScaleCharToQuantum( |
| ScaleColor5to8(1UL*word & 0x1f)); |
| } |
| tim_colormap=(unsigned char *) RelinquishMagickMemory(tim_colormap); |
| } |
| if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| break; |
| /* |
| Read image data. |
| */ |
| (void) ReadBlobLSBLong(image); |
| (void) ReadBlobLSBShort(image); |
| (void) ReadBlobLSBShort(image); |
| width=ReadBlobLSBShort(image); |
| height=ReadBlobLSBShort(image); |
| image_size=2*width*height; |
| bytes_per_line=width*2; |
| width=(width*16)/bits_per_pixel; |
| tim_data=(unsigned char *) AcquireQuantumMemory(image_size, |
| sizeof(*tim_data)); |
| if (tim_data == (unsigned char *) NULL) |
| ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| count=ReadBlob(image,image_size,tim_data); |
| if (count != (ssize_t) (image_size)) |
| ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile"); |
| tim_pixels=tim_data; |
| /* |
| Initialize image structure. |
| */ |
| image->columns=width; |
| image->rows=height; |
| /* |
| Convert TIM raster image to pixel packets. |
| */ |
| switch (bits_per_pixel) |
| { |
| case 4: |
| { |
| /* |
| Convert PseudoColor scanline. |
| */ |
| for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| p=tim_pixels+y*bytes_per_line; |
| for (x=0; x < ((ssize_t) image->columns-1); x+=2) |
| { |
| SetPixelIndex(image,(*p) & 0x0f,q); |
| q+=GetPixelChannels(image); |
| SetPixelIndex(image,(*p >> 4) & 0x0f,q); |
| p++; |
| q+=GetPixelChannels(image); |
| } |
| if ((image->columns % 2) != 0) |
| { |
| SetPixelIndex(image,(*p >> 4) & 0x0f,q); |
| p++; |
| 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; |
| } |
| } |
| break; |
| } |
| case 8: |
| { |
| /* |
| Convert PseudoColor scanline. |
| */ |
| for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| { |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| p=tim_pixels+y*bytes_per_line; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| SetPixelIndex(image,*p++,q); |
| 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; |
| } |
| } |
| break; |
| } |
| case 16: |
| { |
| /* |
| Convert DirectColor scanline. |
| */ |
| for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| { |
| p=tim_pixels+y*bytes_per_line; |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| word=(*p++); |
| word|=(*p++ << 8); |
| SetPixelBlue(image,ScaleCharToQuantum(ScaleColor5to8( |
| (1UL*word >> 10) & 0x1f)),q); |
| SetPixelGreen(image,ScaleCharToQuantum(ScaleColor5to8( |
| (1UL*word >> 5) & 0x1f)),q); |
| SetPixelRed(image,ScaleCharToQuantum(ScaleColor5to8( |
| (1UL*word >> 0) & 0x1f)),q); |
| 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; |
| } |
| } |
| break; |
| } |
| case 24: |
| { |
| /* |
| Convert DirectColor scanline. |
| */ |
| for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| { |
| p=tim_pixels+y*bytes_per_line; |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| SetPixelRed(image,ScaleCharToQuantum(*p++),q); |
| SetPixelGreen(image,ScaleCharToQuantum(*p++),q); |
| SetPixelBlue(image,ScaleCharToQuantum(*p++),q); |
| 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; |
| } |
| } |
| break; |
| } |
| default: |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| } |
| if (image->storage_class == PseudoClass) |
| (void) SyncImage(image,exception); |
| tim_pixels=(unsigned char *) RelinquishMagickMemory(tim_pixels); |
| if (EOFBlob(image) != MagickFalse) |
| { |
| ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", |
| image->filename); |
| break; |
| } |
| /* |
| Proceed to next image. |
| */ |
| tim_info.id=ReadBlobLSBLong(image); |
| if (tim_info.id == 0x00000010) |
| { |
| /* |
| Allocate next image structure. |
| */ |
| AcquireNextImage(image_info,image,exception); |
| if (GetNextImageInList(image) == (Image *) NULL) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| GetBlobSize(image)); |
| if (status == MagickFalse) |
| break; |
| } |
| } while (tim_info.id == 0x00000010); |
| (void) CloseBlob(image); |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r T I M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterTIMImage() adds attributes for the TIM 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 RegisterTIMImage method is: |
| % |
| % size_t RegisterTIMImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterTIMImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=SetMagickInfo("TIM"); |
| entry->decoder=(DecodeImageHandler *) ReadTIMImage; |
| entry->description=ConstantString("PSX TIM"); |
| entry->module=ConstantString("TIM"); |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r T I M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterTIMImage() removes format registrations made by the |
| % TIM module from the list of supported formats. |
| % |
| % The format of the UnregisterTIMImage method is: |
| % |
| % UnregisterTIMImage(void) |
| % |
| */ |
| ModuleExport void UnregisterTIMImage(void) |
| { |
| (void) UnregisterMagickInfo("TIM"); |
| } |