forked from openkylin/imagemagick
1043 lines
39 KiB
C
1043 lines
39 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% PPPP AAA L M M %
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% P P A A L MM MM %
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% PPPP AAAAA L M M M %
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% P A A L M M %
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% P A A LLLLL M M %
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% %
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% %
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% Read/Write Palm Pixmap. %
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% %
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% %
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% Software Design %
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% Christopher R. Hawks %
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% December 2001 %
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% %
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% Copyright 1999-2004 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Based on pnmtopalm by Bill Janssen and ppmtobmp by Ian Goldberg.
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%
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*/
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/*
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Include declarations.
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*/
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#include "magick/studio.h"
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#include "magick/attribute.h"
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/color.h"
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#include "magick/colormap.h"
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#include "magick/colormap-private.h"
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#include "magick/color-private.h"
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#include "magick/colorspace.h"
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#include "magick/colorspace-private.h"
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#include "magick/constitute.h"
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#include "magick/exception.h"
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#include "magick/histogram.h"
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#include "magick/image.h"
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#include "magick/list.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/monitor.h"
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#include "magick/monitor-private.h"
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#include "magick/paint.h"
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#include "magick/pixel-accessor.h"
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#include "magick/pixel-private.h"
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#include "magick/property.h"
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#include "magick/quantize.h"
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#include "magick/quantum-private.h"
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#include "magick/static.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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#include "magick/utility.h"
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/*
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Define declarations.
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*/
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#define PALM_IS_COMPRESSED_FLAG 0x8000
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#define PALM_HAS_COLORMAP_FLAG 0x4000
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#define PALM_HAS_FOUR_BYTE_FIELD 0x0200
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#define PALM_HAS_TRANSPARENCY_FLAG 0x2000
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#define PALM_IS_INDIRECT 0x1000
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#define PALM_IS_FOR_SCREEN 0x0800
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#define PALM_IS_DIRECT_COLOR 0x0400
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#define PALM_COMPRESSION_SCANLINE 0x00
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#define PALM_COMPRESSION_RLE 0x01
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#define PALM_COMPRESSION_NONE 0xFF
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/*
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The 256 color system palette for Palm Computing Devices.
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*/
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static const unsigned char
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PalmPalette[256][3] =
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{
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{255, 255,255}, {255, 204,255}, {255, 153,255}, {255, 102,255},
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{255, 51,255}, {255, 0,255}, {255, 255,204}, {255, 204,204},
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{255, 153,204}, {255, 102,204}, {255, 51,204}, {255, 0,204},
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{255, 255,153}, {255, 204,153}, {255, 153,153}, {255, 102,153},
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{255, 51,153}, {255, 0,153}, {204, 255,255}, {204, 204,255},
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{204, 153,255}, {204, 102,255}, {204, 51,255}, {204, 0,255},
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{204, 255,204}, {204, 204,204}, {204, 153,204}, {204, 102,204},
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{204, 51,204}, {204, 0,204}, {204, 255,153}, {204, 204,153},
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{204, 153,153}, {204, 102,153}, {204, 51,153}, {204, 0,153},
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{153, 255,255}, {153, 204,255}, {153, 153,255}, {153, 102,255},
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{153, 51,255}, {153, 0,255}, {153, 255,204}, {153, 204,204},
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{153, 153,204}, {153, 102,204}, {153, 51,204}, {153, 0,204},
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{153, 255,153}, {153, 204,153}, {153, 153,153}, {153, 102,153},
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{153, 51,153}, {153, 0,153}, {102, 255,255}, {102, 204,255},
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{102, 153,255}, {102, 102,255}, {102, 51,255}, {102, 0,255},
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{102, 255,204}, {102, 204,204}, {102, 153,204}, {102, 102,204},
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{102, 51,204}, {102, 0,204}, {102, 255,153}, {102, 204,153},
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{102, 153,153}, {102, 102,153}, {102, 51,153}, {102, 0,153},
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{ 51, 255,255}, { 51, 204,255}, { 51, 153,255}, { 51, 102,255},
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{ 51, 51,255}, { 51, 0,255}, { 51, 255,204}, { 51, 204,204},
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{ 51, 153,204}, { 51, 102,204}, { 51, 51,204}, { 51, 0,204},
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{ 51, 255,153}, { 51, 204,153}, { 51, 153,153}, { 51, 102,153},
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{ 51, 51,153}, { 51, 0,153}, { 0, 255,255}, { 0, 204,255},
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{ 0, 153,255}, { 0, 102,255}, { 0, 51,255}, { 0, 0,255},
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{ 0, 255,204}, { 0, 204,204}, { 0, 153,204}, { 0, 102,204},
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{ 0, 51,204}, { 0, 0,204}, { 0, 255,153}, { 0, 204,153},
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{ 0, 153,153}, { 0, 102,153}, { 0, 51,153}, { 0, 0,153},
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{255, 255,102}, {255, 204,102}, {255, 153,102}, {255, 102,102},
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{255, 51,102}, {255, 0,102}, {255, 255, 51}, {255, 204, 51},
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{255, 153, 51}, {255, 102, 51}, {255, 51, 51}, {255, 0, 51},
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{255, 255, 0}, {255, 204, 0}, {255, 153, 0}, {255, 102, 0},
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{255, 51, 0}, {255, 0, 0}, {204, 255,102}, {204, 204,102},
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{204, 153,102}, {204, 102,102}, {204, 51,102}, {204, 0,102},
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{204, 255, 51}, {204, 204, 51}, {204, 153, 51}, {204, 102, 51},
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{204, 51, 51}, {204, 0, 51}, {204, 255, 0}, {204, 204, 0},
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{204, 153, 0}, {204, 102, 0}, {204, 51, 0}, {204, 0, 0},
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{153, 255,102}, {153, 204,102}, {153, 153,102}, {153, 102,102},
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{153, 51,102}, {153, 0,102}, {153, 255, 51}, {153, 204, 51},
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{153, 153, 51}, {153, 102, 51}, {153, 51, 51}, {153, 0, 51},
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{153, 255, 0}, {153, 204, 0}, {153, 153, 0}, {153, 102, 0},
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{153, 51, 0}, {153, 0, 0}, {102, 255,102}, {102, 204,102},
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{102, 153,102}, {102, 102,102}, {102, 51,102}, {102, 0,102},
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{102, 255, 51}, {102, 204, 51}, {102, 153, 51}, {102, 102, 51},
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{102, 51, 51}, {102, 0, 51}, {102, 255, 0}, {102, 204, 0},
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{102, 153, 0}, {102, 102, 0}, {102, 51, 0}, {102, 0, 0},
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{ 51, 255,102}, { 51, 204,102}, { 51, 153,102}, { 51, 102,102},
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{ 51, 51,102}, { 51, 0,102}, { 51, 255, 51}, { 51, 204, 51},
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{ 51, 153, 51}, { 51, 102, 51}, { 51, 51, 51}, { 51, 0, 51},
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{ 51, 255, 0}, { 51, 204, 0}, { 51, 153, 0}, { 51, 102, 0},
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{ 51, 51, 0}, { 51, 0, 0}, { 0, 255,102}, { 0, 204,102},
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{ 0, 153,102}, { 0, 102,102}, { 0, 51,102}, { 0, 0,102},
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{ 0, 255, 51}, { 0, 204, 51}, { 0, 153, 51}, { 0, 102, 51},
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{ 0, 51, 51}, { 0, 0, 51}, { 0, 255, 0}, { 0, 204, 0},
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{ 0, 153, 0}, { 0, 102, 0}, { 0, 51, 0}, { 17, 17, 17},
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{ 34, 34, 34}, { 68, 68, 68}, { 85, 85, 85}, {119, 119,119},
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{136, 136,136}, {170, 170,170}, {187, 187,187}, {221, 221,221},
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{238, 238,238}, {192, 192,192}, {128, 0, 0}, {128, 0,128},
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{ 0, 128, 0}, { 0, 128,128}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0},
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{ 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}, { 0, 0, 0}
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};
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WritePALMImage(const ImageInfo *,Image *);
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% F i n d C o l o r %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% FindColor() returns the index of the matching entry from PalmPalette for a
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% given PixelPacket.
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%
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% The format of the FindColor method is:
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%
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% int FindColor(PixelPacket *pixel)
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%
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% A description of each parameter follows:
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%
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% o int: the index of the matching color or -1 if not found/
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%
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% o pixel: a pointer to the PixelPacket to be matched.
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%
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*/
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static ssize_t FindColor(PixelPacket *pixel)
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{
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ssize_t
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i;
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for (i=0; i < 256; i++)
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if (ScaleQuantumToChar(GetPixelRed(pixel)) == PalmPalette[i][0] &&
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ScaleQuantumToChar(GetPixelGreen(pixel)) == PalmPalette[i][1] &&
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ScaleQuantumToChar(GetPixelBlue(pixel)) == PalmPalette[i][2])
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return(i);
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return(-1);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d P A L M I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadPALMImage() reads an image of raw bites in LSB order and returns it. It
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% allocates the memory necessary for the new Image structure and returns a
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% pointer to the new image.
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%
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% The format of the ReadPALMImage method is:
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%
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% Image *ReadPALMImage(const ImageInfo *image_info,
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% ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: Specifies a pointer to an ImageInfo structure.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *ReadPALMImage(const ImageInfo *image_info,
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ExceptionInfo *exception)
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{
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Image
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*image;
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IndexPacket
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index;
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MagickBooleanType
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status;
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MagickOffsetType
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totalOffset,
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seekNextDepth;
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MagickPixelPacket
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transpix;
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IndexPacket
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*indexes;
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ssize_t
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i,
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x;
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PixelPacket
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*q;
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size_t
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bytes_per_row,
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bits_per_pixel,
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extent,
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flags,
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version,
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nextDepthOffset,
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transparentIndex,
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compressionType,
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byte,
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mask,
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redbits,
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greenbits,
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bluebits,
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one,
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pad,
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size,
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bit;
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ssize_t
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count,
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y;
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unsigned char
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*last_row,
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*one_row,
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*ptr;
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unsigned short
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color16;
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/*
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Open image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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if (image_info->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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image=AcquireImage(image_info);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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(void) DestroyImageList(image);
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return((Image *) NULL);
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}
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totalOffset=0;
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do
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{
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image->columns=ReadBlobMSBShort(image);
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image->rows=ReadBlobMSBShort(image);
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if (EOFBlob(image) != MagickFalse)
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ThrowReaderException(CorruptImageError,"ImproperImageHeader");
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if ((image->columns == 0) || (image->rows == 0))
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ThrowReaderException(CorruptImageError,"NegativeOrZeroImageSize");
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status=SetImageExtent(image,image->columns,image->rows);
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if (status == MagickFalse)
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{
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InheritException(exception,&image->exception);
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return(DestroyImageList(image));
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}
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(void) SetImageBackgroundColor(image);
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bytes_per_row=ReadBlobMSBShort(image);
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flags=ReadBlobMSBShort(image);
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bits_per_pixel=(size_t) ReadBlobByte(image);
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if ((bits_per_pixel != 1) && (bits_per_pixel != 2) &&
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(bits_per_pixel != 4) && (bits_per_pixel != 8) &&
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(bits_per_pixel != 16))
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ThrowReaderException(CorruptImageError,"UnsupportedBitsPerPixel");
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version=(size_t) ReadBlobByte(image);
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if ((version != 0) && (version != 1) && (version != 2))
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ThrowReaderException(CorruptImageError,"FileFormatVersionMismatch");
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nextDepthOffset=(size_t) ReadBlobMSBShort(image);
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transparentIndex=(size_t) ReadBlobByte(image);
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compressionType=(size_t) ReadBlobByte(image);
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if ((compressionType != PALM_COMPRESSION_NONE) &&
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(compressionType != PALM_COMPRESSION_SCANLINE ) &&
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(compressionType != PALM_COMPRESSION_RLE))
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ThrowReaderException(CorruptImageError,"UnrecognizedImageCompression");
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pad=ReadBlobMSBShort(image);
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(void) pad;
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/*
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Initialize image colormap.
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*/
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one=1;
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if ((bits_per_pixel < 16) &&
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(AcquireImageColormap(image,one << bits_per_pixel) == MagickFalse))
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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GetMagickPixelPacket(image,&transpix);
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if (bits_per_pixel == 16) /* Direct Color */
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{
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redbits=(size_t) ReadBlobByte(image); /* # of bits of red */
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(void) redbits;
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greenbits=(size_t) ReadBlobByte(image); /* # of bits of green */
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(void) greenbits;
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bluebits=(size_t) ReadBlobByte(image); /* # of bits of blue */
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(void) bluebits;
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ReadBlobByte(image); /* reserved by Palm */
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ReadBlobByte(image); /* reserved by Palm */
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transpix.red=(MagickRealType) (QuantumRange*ReadBlobByte(image)/31);
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transpix.green=(MagickRealType) (QuantumRange*ReadBlobByte(image)/63);
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transpix.blue=(MagickRealType) (QuantumRange*ReadBlobByte(image)/31);
|
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}
|
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if (bits_per_pixel == 8)
|
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{
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||
IndexPacket
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index;
|
||
|
||
if (flags & PALM_HAS_COLORMAP_FLAG)
|
||
{
|
||
count=(ssize_t) ReadBlobMSBShort(image);
|
||
for (i=0; i < (ssize_t) count; i++)
|
||
{
|
||
ReadBlobByte(image);
|
||
index=ConstrainColormapIndex(image,(ssize_t) (255-i));
|
||
image->colormap[(int) index].red=ScaleCharToQuantum(
|
||
(unsigned char) ReadBlobByte(image));
|
||
image->colormap[(int) index].green=ScaleCharToQuantum(
|
||
(unsigned char) ReadBlobByte(image));
|
||
image->colormap[(int) index].blue=ScaleCharToQuantum(
|
||
(unsigned char) ReadBlobByte(image));
|
||
}
|
||
}
|
||
else
|
||
for (i=0; i < (ssize_t) (1L << bits_per_pixel); i++)
|
||
{
|
||
index=ConstrainColormapIndex(image,(ssize_t) (255-i));
|
||
image->colormap[(int) index].red=ScaleCharToQuantum(
|
||
PalmPalette[i][0]);
|
||
image->colormap[(int) index].green=ScaleCharToQuantum(
|
||
PalmPalette[i][1]);
|
||
image->colormap[(int) index].blue=ScaleCharToQuantum(
|
||
PalmPalette[i][2]);
|
||
}
|
||
}
|
||
if (flags & PALM_IS_COMPRESSED_FLAG)
|
||
size=ReadBlobMSBShort(image);
|
||
(void) size;
|
||
image->storage_class=DirectClass;
|
||
if (bits_per_pixel < 16)
|
||
{
|
||
image->storage_class=PseudoClass;
|
||
image->depth=8;
|
||
}
|
||
if (image_info->ping != MagickFalse)
|
||
{
|
||
(void) CloseBlob(image);
|
||
return(image);
|
||
}
|
||
status=SetImageExtent(image,image->columns,image->rows);
|
||
if (status == MagickFalse)
|
||
{
|
||
InheritException(exception,&image->exception);
|
||
return(DestroyImageList(image));
|
||
}
|
||
extent=MagickMax(bytes_per_row,2*image->columns);
|
||
one_row=(unsigned char *) AcquireQuantumMemory(extent,sizeof(*one_row));
|
||
if (one_row == (unsigned char *) NULL)
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
(void) memset(one_row,0,extent*sizeof(*one_row));
|
||
last_row=(unsigned char *) NULL;
|
||
if (compressionType == PALM_COMPRESSION_SCANLINE)
|
||
{
|
||
last_row=(unsigned char *) AcquireQuantumMemory(MagickMax(bytes_per_row,
|
||
2*image->columns),sizeof(*last_row));
|
||
if (last_row == (unsigned char *) NULL)
|
||
{
|
||
one_row=(unsigned char *) RelinquishMagickMemory(one_row);
|
||
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
(void) memset(last_row,0,MagickMax(bytes_per_row,2*image->columns)*
|
||
sizeof(*last_row));
|
||
}
|
||
mask=(size_t) (1U << bits_per_pixel)-1;
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
if ((flags & PALM_IS_COMPRESSED_FLAG) == 0)
|
||
{
|
||
/* TODO move out of loop! */
|
||
image->compression=NoCompression;
|
||
count=ReadBlob(image,bytes_per_row,one_row);
|
||
if (count != (ssize_t) bytes_per_row)
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
if (compressionType == PALM_COMPRESSION_RLE)
|
||
{
|
||
/* TODO move out of loop! */
|
||
image->compression=RLECompression;
|
||
for (i=0; i < (ssize_t) bytes_per_row; )
|
||
{
|
||
count=(ssize_t) ReadBlobByte(image);
|
||
if (count < 0)
|
||
break;
|
||
count=MagickMin(count,(ssize_t) bytes_per_row-i);
|
||
byte=(size_t) ReadBlobByte(image);
|
||
(void) memset(one_row+i,(int) byte,(size_t) count);
|
||
i+=count;
|
||
}
|
||
}
|
||
else
|
||
if (compressionType == PALM_COMPRESSION_SCANLINE)
|
||
{
|
||
size_t
|
||
one;
|
||
|
||
/* TODO move out of loop! */
|
||
one=1;
|
||
image->compression=FaxCompression;
|
||
for (i=0; i < (ssize_t) bytes_per_row; i+=8)
|
||
{
|
||
count=(ssize_t) ReadBlobByte(image);
|
||
if (count < 0)
|
||
break;
|
||
byte=(size_t) MagickMin((ssize_t) bytes_per_row-i,8);
|
||
for (bit=0; bit < byte; bit++)
|
||
{
|
||
if ((y == 0) || (count & (one << (7 - bit))))
|
||
one_row[i+bit]=(unsigned char) ReadBlobByte(image);
|
||
else
|
||
one_row[i+bit]=last_row[i+bit];
|
||
}
|
||
}
|
||
(void) memcpy(last_row, one_row, bytes_per_row);
|
||
}
|
||
}
|
||
ptr=one_row;
|
||
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (q == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
if (bits_per_pixel == 16)
|
||
{
|
||
if (image->columns > (2*bytes_per_row))
|
||
{
|
||
one_row=(unsigned char *) RelinquishMagickMemory(one_row);
|
||
if (compressionType == PALM_COMPRESSION_SCANLINE)
|
||
last_row=(unsigned char *) RelinquishMagickMemory(last_row);
|
||
ThrowReaderException(CorruptImageError,"CorruptImage");
|
||
}
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
color16=(*ptr++ << 8);
|
||
color16|=(*ptr++);
|
||
SetPixelRed(q,(QuantumRange*((color16 >> 11) & 0x1f))/0x1f);
|
||
SetPixelGreen(q,(QuantumRange*((color16 >> 5) & 0x3f))/0x3f);
|
||
SetPixelBlue(q,(QuantumRange*((color16 >> 0) & 0x1f))/0x1f);
|
||
SetPixelOpacity(q,OpaqueOpacity);
|
||
q++;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
bit=8-bits_per_pixel;
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
if ((size_t) (ptr-one_row) >= bytes_per_row)
|
||
{
|
||
one_row=(unsigned char *) RelinquishMagickMemory(one_row);
|
||
if (compressionType == PALM_COMPRESSION_SCANLINE)
|
||
last_row=(unsigned char *) RelinquishMagickMemory(last_row);
|
||
ThrowReaderException(CorruptImageError,"CorruptImage");
|
||
}
|
||
index=(IndexPacket) (mask-(((*ptr) & (mask << bit)) >> bit));
|
||
SetPixelIndex(indexes+x,index);
|
||
SetPixelRGBO(q,image->colormap+(ssize_t) index);
|
||
if (bit)
|
||
bit-=bits_per_pixel;
|
||
else
|
||
{
|
||
ptr++;
|
||
bit=8-bits_per_pixel;
|
||
}
|
||
q++;
|
||
}
|
||
if (SyncAuthenticPixels(image,exception) == MagickFalse)
|
||
break;
|
||
}
|
||
if (image->previous == (Image *) NULL)
|
||
{
|
||
status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
|
||
image->rows);
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
}
|
||
if (flags & PALM_HAS_TRANSPARENCY_FLAG)
|
||
{
|
||
IndexPacket index=ConstrainColormapIndex(image,(mask-transparentIndex));
|
||
if (bits_per_pixel != 16)
|
||
SetMagickPixelPacket(image,image->colormap+(ssize_t) index,
|
||
(const IndexPacket *) NULL,&transpix);
|
||
(void) TransparentPaintImage(image,&transpix,(Quantum)
|
||
TransparentOpacity,MagickFalse);
|
||
}
|
||
one_row=(unsigned char *) RelinquishMagickMemory(one_row);
|
||
if (compressionType == PALM_COMPRESSION_SCANLINE)
|
||
last_row=(unsigned char *) RelinquishMagickMemory(last_row);
|
||
if (EOFBlob(image) != MagickFalse)
|
||
{
|
||
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
|
||
image->filename);
|
||
break;
|
||
}
|
||
/*
|
||
Proceed to next image. Copied from coders/pnm.c
|
||
*/
|
||
if (image_info->number_scenes != 0)
|
||
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
|
||
break;
|
||
if (nextDepthOffset != 0)
|
||
{
|
||
/*
|
||
Skip to next image.
|
||
*/
|
||
totalOffset+=(MagickOffsetType) (nextDepthOffset*4);
|
||
if (totalOffset >= (MagickOffsetType) GetBlobSize(image))
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader")
|
||
else
|
||
seekNextDepth=SeekBlob(image,totalOffset,SEEK_SET);
|
||
if (seekNextDepth != totalOffset)
|
||
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
|
||
/*
|
||
Allocate next image structure. Copied from coders/pnm.c
|
||
*/
|
||
AcquireNextImage(image_info,image);
|
||
if (GetNextImageInList(image) == (Image *) NULL)
|
||
{
|
||
status=MagickFalse;
|
||
break;
|
||
}
|
||
image=SyncNextImageInList(image);
|
||
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
|
||
GetBlobSize(image));
|
||
if (status == MagickFalse)
|
||
break;
|
||
}
|
||
} while (nextDepthOffset != 0);
|
||
(void) CloseBlob(image);
|
||
if (status == MagickFalse)
|
||
return(DestroyImageList(image));
|
||
return(GetFirstImageInList(image));
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% R e g i s t e r P A L M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% RegisterPALMImage() adds properties for the PALM image format to the list of
|
||
% supported formats. The properties 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 RegisterPALMImage method is:
|
||
%
|
||
% size_t RegisterPALMImage(void)
|
||
%
|
||
*/
|
||
ModuleExport size_t RegisterPALMImage(void)
|
||
{
|
||
MagickInfo
|
||
*entry;
|
||
|
||
entry=SetMagickInfo("PALM");
|
||
entry->decoder=(DecodeImageHandler *) ReadPALMImage;
|
||
entry->encoder=(EncodeImageHandler *) WritePALMImage;
|
||
entry->seekable_stream=MagickTrue;
|
||
entry->description=ConstantString("Palm pixmap");
|
||
entry->magick_module=ConstantString("PALM");
|
||
(void) RegisterMagickInfo(entry);
|
||
return(MagickImageCoderSignature);
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% U n r e g i s t e r P A L M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% UnregisterPALMImage() removes format registrations made by the PALM
|
||
% module from the list of supported formats.
|
||
%
|
||
% The format of the UnregisterPALMImage method is:
|
||
%
|
||
% UnregisterPALMImage(void)
|
||
%
|
||
*/
|
||
ModuleExport void UnregisterPALMImage(void)
|
||
{
|
||
(void) UnregisterMagickInfo("PALM");
|
||
}
|
||
|
||
/*
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
% %
|
||
% %
|
||
% %
|
||
% W r i t e P A L M I m a g e %
|
||
% %
|
||
% %
|
||
% %
|
||
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
||
%
|
||
% WritePALMImage() writes an image of raw bits in LSB order to a file.
|
||
%
|
||
% The format of the WritePALMImage method is:
|
||
%
|
||
% MagickBooleanType WritePALMImage(const ImageInfo *image_info,
|
||
% Image *image)
|
||
%
|
||
% A description of each parameter follows.
|
||
%
|
||
% o image_info: Specifies a pointer to an ImageInfo structure.
|
||
%
|
||
% o image: A pointer to a Image structure.
|
||
%
|
||
*/
|
||
static MagickBooleanType WritePALMImage(const ImageInfo *image_info,
|
||
Image *image)
|
||
{
|
||
int
|
||
bit;
|
||
|
||
ExceptionInfo
|
||
*exception;
|
||
|
||
MagickBooleanType
|
||
status;
|
||
|
||
MagickOffsetType
|
||
currentOffset,
|
||
offset,
|
||
scene;
|
||
|
||
MagickSizeType
|
||
cc;
|
||
|
||
PixelPacket
|
||
transpix;
|
||
|
||
QuantizeInfo
|
||
*quantize_info;
|
||
|
||
IndexPacket
|
||
*indexes;
|
||
|
||
ssize_t
|
||
x;
|
||
|
||
PixelPacket
|
||
*p;
|
||
|
||
ssize_t
|
||
y;
|
||
|
||
size_t
|
||
count,
|
||
bits_per_pixel,
|
||
bytes_per_row,
|
||
imageListLength,
|
||
nextDepthOffset,
|
||
one;
|
||
|
||
unsigned char
|
||
byte,
|
||
color,
|
||
*last_row,
|
||
*one_row,
|
||
*ptr,
|
||
version;
|
||
|
||
unsigned int
|
||
transparentIndex;
|
||
|
||
unsigned short
|
||
color16,
|
||
flags;
|
||
|
||
/*
|
||
Open output image file.
|
||
*/
|
||
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);
|
||
exception=AcquireExceptionInfo();
|
||
status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
|
||
if (status == MagickFalse)
|
||
return(status);
|
||
quantize_info=AcquireQuantizeInfo(image_info);
|
||
flags=0;
|
||
currentOffset=0;
|
||
transparentIndex=0;
|
||
transpix.red=0;
|
||
transpix.green=0;
|
||
transpix.blue=0;
|
||
transpix.opacity=0;
|
||
one=1;
|
||
version=0;
|
||
scene=0;
|
||
imageListLength=GetImageListLength(image);
|
||
do
|
||
{
|
||
(void) TransformImageColorspace(image,sRGBColorspace);
|
||
count=GetNumberColors(image,NULL,exception);
|
||
for (bits_per_pixel=1; (one << bits_per_pixel) < count; bits_per_pixel*=2) ;
|
||
if (bits_per_pixel > 16)
|
||
bits_per_pixel=16;
|
||
else
|
||
if (bits_per_pixel < 16)
|
||
(void) TransformImageColorspace(image,image->colorspace);
|
||
if (bits_per_pixel < 8)
|
||
{
|
||
(void) TransformImageColorspace(image,GRAYColorspace);
|
||
(void) SetImageType(image,PaletteType);
|
||
(void) SortColormapByIntensity(image);
|
||
}
|
||
if ((image->storage_class == PseudoClass) && (image->colors > 256))
|
||
(void) SetImageStorageClass(image,DirectClass);
|
||
if (image->storage_class == PseudoClass)
|
||
flags|=PALM_HAS_COLORMAP_FLAG;
|
||
else
|
||
flags|=PALM_IS_DIRECT_COLOR;
|
||
(void) WriteBlobMSBShort(image,(unsigned short) image->columns); /* width */
|
||
(void) WriteBlobMSBShort(image,(unsigned short) image->rows); /* height */
|
||
bytes_per_row=((image->columns+(16/bits_per_pixel-1))/(16/
|
||
bits_per_pixel))*2;
|
||
(void) WriteBlobMSBShort(image,(unsigned short) bytes_per_row);
|
||
if ((image_info->compression == RLECompression) ||
|
||
(image_info->compression == FaxCompression))
|
||
flags|=PALM_IS_COMPRESSED_FLAG;
|
||
(void) WriteBlobMSBShort(image, flags);
|
||
(void) WriteBlobByte(image,(unsigned char) bits_per_pixel);
|
||
if (bits_per_pixel > 1)
|
||
version=1;
|
||
if ((image_info->compression == RLECompression) ||
|
||
(image_info->compression == FaxCompression))
|
||
version=2;
|
||
(void) WriteBlobByte(image,version);
|
||
(void) WriteBlobMSBShort(image,0); /* nextDepthOffset */
|
||
(void) WriteBlobByte(image,(unsigned char) transparentIndex);
|
||
if (image_info->compression == RLECompression)
|
||
(void) WriteBlobByte(image,PALM_COMPRESSION_RLE);
|
||
else
|
||
if (image_info->compression == FaxCompression)
|
||
(void) WriteBlobByte(image,PALM_COMPRESSION_SCANLINE);
|
||
else
|
||
(void) WriteBlobByte(image,PALM_COMPRESSION_NONE);
|
||
(void) WriteBlobMSBShort(image,0); /* reserved */
|
||
offset=16;
|
||
if (bits_per_pixel == 16)
|
||
{
|
||
(void) WriteBlobByte(image,5); /* # of bits of red */
|
||
(void) WriteBlobByte(image,6); /* # of bits of green */
|
||
(void) WriteBlobByte(image,5); /* # of bits of blue */
|
||
(void) WriteBlobByte(image,0); /* reserved by Palm */
|
||
(void) WriteBlobMSBLong(image,0); /* no transparent color, YET */
|
||
offset+=8;
|
||
}
|
||
if (bits_per_pixel == 8)
|
||
{
|
||
if (flags & PALM_HAS_COLORMAP_FLAG) /* Write out colormap */
|
||
{
|
||
quantize_info->dither=IsPaletteImage(image,&image->exception);
|
||
quantize_info->number_colors=image->colors;
|
||
(void) QuantizeImage(quantize_info,image);
|
||
(void) WriteBlobMSBShort(image,(unsigned short) image->colors);
|
||
for (count = 0; count < image->colors; count++)
|
||
{
|
||
(void) WriteBlobByte(image,(unsigned char) count);
|
||
(void) WriteBlobByte(image,ScaleQuantumToChar(
|
||
image->colormap[count].red));
|
||
(void) WriteBlobByte(image,
|
||
ScaleQuantumToChar(image->colormap[count].green));
|
||
(void) WriteBlobByte(image,
|
||
ScaleQuantumToChar(image->colormap[count].blue));
|
||
}
|
||
offset+=2+count*4;
|
||
}
|
||
else /* Map colors to Palm standard colormap */
|
||
{
|
||
Image
|
||
*affinity_image;
|
||
|
||
affinity_image=ConstituteImage(256,1,"RGB",CharPixel,&PalmPalette,
|
||
exception);
|
||
(void) TransformImageColorspace(affinity_image,
|
||
affinity_image->colorspace);
|
||
(void) RemapImage(quantize_info,image,affinity_image);
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
p=GetAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
SetPixelIndex(indexes+x,FindColor(&image->colormap[
|
||
(ssize_t) GetPixelIndex(indexes+x)]));
|
||
}
|
||
affinity_image=DestroyImage(affinity_image);
|
||
}
|
||
}
|
||
if (flags & PALM_IS_COMPRESSED_FLAG)
|
||
(void) WriteBlobMSBShort(image,0); /* fill in size later */
|
||
last_row=(unsigned char *) NULL;
|
||
if (image_info->compression == FaxCompression)
|
||
{
|
||
last_row=(unsigned char *) AcquireQuantumMemory(bytes_per_row+256,
|
||
sizeof(*last_row));
|
||
if (last_row == (unsigned char *) NULL)
|
||
{
|
||
quantize_info=DestroyQuantizeInfo(quantize_info);
|
||
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
}
|
||
one_row=(unsigned char *) AcquireQuantumMemory(bytes_per_row+256,
|
||
sizeof(*one_row));
|
||
if (one_row == (unsigned char *) NULL)
|
||
{
|
||
if (last_row != (unsigned char *) NULL)
|
||
last_row=(unsigned char *) RelinquishMagickMemory(last_row);
|
||
quantize_info=DestroyQuantizeInfo(quantize_info);
|
||
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
ptr=one_row;
|
||
(void) memset(ptr,0,bytes_per_row);
|
||
p=GetAuthenticPixels(image,0,y,image->columns,1,exception);
|
||
if (p == (PixelPacket *) NULL)
|
||
break;
|
||
indexes=GetAuthenticIndexQueue(image);
|
||
if (bits_per_pixel == 16)
|
||
{
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
color16=(unsigned short) ((((31*(ssize_t) GetPixelRed(p))/
|
||
(ssize_t) QuantumRange) << 11) |
|
||
(((63*(ssize_t) GetPixelGreen(p))/(ssize_t) QuantumRange) << 5) |
|
||
((31*(ssize_t) GetPixelBlue(p))/(ssize_t) QuantumRange));
|
||
if (GetPixelOpacity(p) == (Quantum) TransparentOpacity)
|
||
{
|
||
transpix.red=GetPixelRed(p);
|
||
transpix.green=GetPixelGreen(p);
|
||
transpix.blue=GetPixelBlue(p);
|
||
transpix.opacity=GetPixelOpacity(p);
|
||
flags|=PALM_HAS_TRANSPARENCY_FLAG;
|
||
}
|
||
*ptr++=(unsigned char) ((color16 >> 8) & 0xff);
|
||
*ptr++=(unsigned char) (color16 & 0xff);
|
||
p++;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
byte=0x00;
|
||
bit=(unsigned char) (8-bits_per_pixel);
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
if (bits_per_pixel >= 8)
|
||
color=(unsigned char) ((size_t) GetPixelIndex(indexes+x));
|
||
else
|
||
color=(unsigned char) (GetPixelIndex(indexes+x)*
|
||
((one << bits_per_pixel)-1)/MagickMax(1*image->colors-1,1));
|
||
byte|=color << bit;
|
||
if (bit != 0)
|
||
bit-=(unsigned char) bits_per_pixel;
|
||
else
|
||
{
|
||
*ptr++=byte;
|
||
byte=0x00;
|
||
bit=(unsigned char) (8-bits_per_pixel);
|
||
}
|
||
}
|
||
if ((image->columns % (8/bits_per_pixel)) != 0)
|
||
*ptr++=byte;
|
||
}
|
||
if (image_info->compression == RLECompression)
|
||
{
|
||
x=0;
|
||
while (x < (ssize_t) bytes_per_row)
|
||
{
|
||
byte=one_row[x];
|
||
count=1;
|
||
while ((one_row[++x] == byte) && (count < 255) &&
|
||
(x < (ssize_t) bytes_per_row))
|
||
count++;
|
||
(void) WriteBlobByte(image,(unsigned char) count);
|
||
(void) WriteBlobByte(image,(unsigned char) byte);
|
||
}
|
||
}
|
||
else
|
||
if (image_info->compression == FaxCompression)
|
||
{
|
||
char
|
||
tmpbuf[8],
|
||
*tptr;
|
||
|
||
for (x=0; x < (ssize_t) bytes_per_row; x+=8)
|
||
{
|
||
tptr = tmpbuf;
|
||
for (bit=0, byte=0; bit < (int) MagickMin(8L,(ssize_t) bytes_per_row-x); bit++)
|
||
{
|
||
if ((y == 0) || (last_row[x + bit] != one_row[x + bit]))
|
||
{
|
||
byte |= (1 << (7 - bit));
|
||
*tptr++ = (char) one_row[x + bit];
|
||
}
|
||
}
|
||
(void) WriteBlobByte(image, byte);
|
||
(void) WriteBlob(image,tptr-tmpbuf,(unsigned char *) tmpbuf);
|
||
}
|
||
(void) memcpy(last_row,one_row,bytes_per_row);
|
||
}
|
||
else
|
||
(void) WriteBlob(image,bytes_per_row,one_row);
|
||
}
|
||
if (flags & PALM_HAS_TRANSPARENCY_FLAG)
|
||
{
|
||
offset=SeekBlob(image,currentOffset+6,SEEK_SET);
|
||
(void) WriteBlobMSBShort(image,flags);
|
||
offset=SeekBlob(image,currentOffset+12,SEEK_SET);
|
||
(void) WriteBlobByte(image,(unsigned char) transparentIndex); /* trans index */
|
||
}
|
||
if (bits_per_pixel == 16)
|
||
{
|
||
offset=SeekBlob(image,currentOffset+20,SEEK_SET);
|
||
(void) WriteBlobByte(image,0); /* reserved by Palm */
|
||
(void) WriteBlobByte(image,(unsigned char) ((31*transpix.red)/
|
||
QuantumRange));
|
||
(void) WriteBlobByte(image,(unsigned char) ((63*transpix.green)/
|
||
QuantumRange));
|
||
(void) WriteBlobByte(image,(unsigned char) ((31*transpix.blue)/
|
||
QuantumRange));
|
||
}
|
||
if (flags & PALM_IS_COMPRESSED_FLAG) /* fill in size now */
|
||
{
|
||
offset=SeekBlob(image,currentOffset+offset,SEEK_SET);
|
||
(void) WriteBlobMSBShort(image,(unsigned short) (GetBlobSize(image)-
|
||
currentOffset-offset));
|
||
}
|
||
if (one_row != (unsigned char *) NULL)
|
||
one_row=(unsigned char *) RelinquishMagickMemory(one_row);
|
||
if (last_row != (unsigned char *) NULL)
|
||
last_row=(unsigned char *) RelinquishMagickMemory(last_row);
|
||
if (GetNextImageInList(image) == (Image *) NULL)
|
||
break;
|
||
/* padding to 4 byte word */
|
||
for (cc=(GetBlobSize(image)) % 4; cc > 0; cc--)
|
||
(void) WriteBlobByte(image,0);
|
||
/* write nextDepthOffset and return to end of image */
|
||
(void) SeekBlob(image,currentOffset+10,SEEK_SET);
|
||
nextDepthOffset=(size_t) ((GetBlobSize(image)-currentOffset)/4);
|
||
(void) WriteBlobMSBShort(image,(unsigned short) nextDepthOffset);
|
||
currentOffset=(MagickOffsetType) GetBlobSize(image);
|
||
(void) SeekBlob(image,currentOffset,SEEK_SET);
|
||
image=SyncNextImageInList(image);
|
||
status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength);
|
||
if (status == MagickFalse)
|
||
break;
|
||
} while (image_info->adjoin != MagickFalse);
|
||
quantize_info=DestroyQuantizeInfo(quantize_info);
|
||
(void) CloseBlob(image);
|
||
(void) DestroyExceptionInfo(exception);
|
||
return(MagickTrue);
|
||
}
|