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/* ************************************************************************** */
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/* * For conditions of distribution and use, * */
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/* * see copyright notice in libmng.h * */
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/* ************************************************************************** */
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/* * * */
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/* * project : libmng * */
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/* * file : libmng_error.c copyright (c) 2000-2007 G.Juyn * */
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/* * version : 1.0.10 * */
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/* * * */
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/* * purpose : Error routines (implementation) * */
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/* * * */
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/* * author : G.Juyn * */
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/* * * */
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/* * comment : implementation of the general error handling routines * */
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/* * * */
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/* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */
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/* * - changed strict-ANSI stuff * */
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/* * * */
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/* * 0.5.2 - 05/23/2000 - G.Juyn * */
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/* * - added error telltaling * */
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/* * 0.5.2 - 05/30/2000 - G.Juyn * */
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/* * - added errorstrings for delta-image processing * */
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/* * 0.5.2 - 05/31/2000 - G.Juyn * */
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/* * - fixed up punctuation (contributed by Tim Rowley) * */
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/* * 0.5.2 - 06/06/2000 - G.Juyn * */
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/* * - added errorstring for delayed buffer-processing * */
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/* * * */
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/* * 0.9.1 - 07/06/2000 - G.Juyn * */
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/* * - added MNG_NEEDTIMERWAIT errorstring * */
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/* * 0.9.1 - 07/15/2000 - G.Juyn * */
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/* * - added NEEDSECTIONWAIT errorstring * */
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/* * - added macro + routine to set returncode without * */
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/* * calling error callback * */
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/* * 0.9.1 - 07/19/2000 - G.Juyn * */
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/* * - added errorstring for updatemngheader if not a MNG * */
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/* * * */
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/* * 0.9.2 - 08/05/2000 - G.Juyn * */
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/* * - changed file-prefixes * */
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/* * * */
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/* * 0.9.3 - 08/09/2000 - G.Juyn * */
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/* * - added check for simplicity-bits in MHDR * */
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/* * 0.9.3 - 10/11/2000 - G.Juyn * */
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/* * - fixed processing of unknown critical chunks * */
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/* * - added support for nEED * */
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/* * 0.9.3 - 10/20/2000 - G.Juyn * */
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/* * - added errorcode for delayed delta-processing * */
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/* * * */
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/* * 0.9.4 - 01/18/2001 - G.Juyn * */
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/* * - added errorcode for MAGN methods * */
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/* * * */
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/* * 1.0.2 - 06/23/2001 - G.Juyn * */
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/* * - added optimization option for MNG-video playback * */
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/* * * */
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/* * 1.0.5 - 07/04/2002 - G.Juyn * */
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/* * - added errorcode for extreme chunk-sizes * */
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/* * 1.0.5 - 08/15/2002 - G.Juyn * */
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/* * - completed delta-image support * */
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/* * 1.0.5 - 08/19/2002 - G.Juyn * */
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/* * - B597134 - libmng pollutes the linker namespace * */
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/* * 1.0.5 - 09/14/2002 - G.Juyn * */
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/* * - added event handling for dynamic MNG * */
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/* * 1.0.5 - 09/15/2002 - G.Juyn * */
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/* * - fixed LOOP iteration=0 special case * */
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/* * 1.0.5 - 09/19/2002 - G.Juyn * */
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/* * - warnings are ignored by default now! * */
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/* * 1.0.5 - 09/20/2002 - G.Juyn * */
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/* * - added support for PAST * */
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/* * 1.0.5 - 10/07/2002 - G.Juyn * */
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/* * - added check for TERM placement during create/write * */
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/* * * */
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/* * 1.0.6 - 07/07/2003 - G. R-P * */
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/* * - added MNG_SKIPCHUNK_CHNK, MNG_NO_DELTA_PNG reductions. * */
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/* * - skipped more code when MNG_INCLUDE_JNG is not enabled. * */
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/* * 1.0.6 - 07/29/2003 - G.R-P * */
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/* * - added conditional around evNT chunk support * */
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/* * * */
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/* * 1.0.7 - 03/24/2004 - G.R-P * */
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/* * - fixed typo on SKIPCHUNK_evNT (->PAST) * */
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/* * * */
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/* * 1.0.9 - 12/20/2004 - G.Juyn * */
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/* * - cleaned up macro-invocations (thanks to D. Airlie) * */
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/* * * */
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/* * 1.0.10 - 04/08/2007 - G.Juyn * */
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/* * - added support for mPNG proposal * */
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/* * * */
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/* ************************************************************************** */
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#include "libmng.h"
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#include "libmng_data.h"
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#include "libmng_error.h"
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#include "libmng_trace.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
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#pragma option -A /* force ANSI-C */
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#endif
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/* ************************************************************************** */
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#ifdef MNG_INCLUDE_ERROR_STRINGS
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MNG_LOCAL mng_error_entry const error_table [] =
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{
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{MNG_NOERROR, "No error"},
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{MNG_OUTOFMEMORY, "Out of memory"},
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{MNG_INVALIDHANDLE, "The handle is invalid"},
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{MNG_NOCALLBACK, "A required callback is not defined"},
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{MNG_UNEXPECTEDEOF, "Encountered unexpected end-of-file"},
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{MNG_ZLIBERROR, "zlib encountered an error"},
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#ifdef MNG_INCLUDE_JNG
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{MNG_JPEGERROR, "ijgsrc6b encountered an error"},
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#endif
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{MNG_LCMSERROR, "lcms encountered an error"},
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{MNG_NOOUTPUTPROFILE, "No output-profile defined for CMS"},
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{MNG_NOSRGBPROFILE, "No sRGB-profile defined for CMS"},
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{MNG_BUFOVERFLOW, "Internal buffer-overflow"},
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{MNG_FUNCTIONINVALID, "Function is invalid at this point"},
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{MNG_OUTPUTERROR, "Writing was unsuccessful; disk full?"},
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{MNG_JPEGBUFTOOSMALL, "Internal buffer for JPEG processing too small"},
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{MNG_NEEDMOREDATA, "Reading suspended; waiting for I/O to catch up"},
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{MNG_NEEDTIMERWAIT, "Timer suspension; normal animation delay"},
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{MNG_NEEDSECTIONWAIT, "SEEK suspension; application decides"},
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{MNG_LOOPWITHCACHEOFF, "LOOP encountered when playback cache is turned off"},
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{MNG_APPIOERROR, "Application signalled I/O error"},
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{MNG_APPTIMERERROR, "Application signalled timing error"},
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{MNG_APPCMSERROR, "Application signalled CMS error"},
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{MNG_APPMISCERROR, "Application signalled an error"},
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{MNG_APPTRACEABORT, "Application signalled error during trace-callback"},
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{MNG_INTERNALERROR, "Internal error in libmng"},
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{MNG_INVALIDSIG, "The signature is invalid"},
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{MNG_INVALIDCRC, "The CRC for this chunk is invalid"},
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{MNG_INVALIDLENGTH, "Chunk-length is invalid"},
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{MNG_SEQUENCEERROR, "Chunk out of sequence"},
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{MNG_CHUNKNOTALLOWED, "Chunk not allowed at this point"},
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{MNG_MULTIPLEERROR, "Chunk cannot occur multiple times"},
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{MNG_PLTEMISSING, "Missing PLTE chunk"},
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{MNG_IDATMISSING, "Missing IDAT chunk(s)"},
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{MNG_CANNOTBEEMPTY, "Chunk cannot be empty"},
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{MNG_GLOBALLENGTHERR, "Global data length invalid"},
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{MNG_INVALIDBITDEPTH, "The bit_depth is invalid"},
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{MNG_INVALIDCOLORTYPE, "The color_type is invalid"},
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{MNG_INVALIDCOMPRESS, "The compression_method is invalid"},
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{MNG_INVALIDFILTER, "The filter_method or filter_type is invalid"},
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{MNG_INVALIDINTERLACE, "The interlace_method is invalid"},
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{MNG_NOTENOUGHIDAT, "There is not enough data in the IDAT chunk(s)"},
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{MNG_PLTEINDEXERROR, "Palette-index out of bounds"},
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{MNG_NULLNOTFOUND, "NULL separator not found"},
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{MNG_KEYWORDNULL, "Keyword cannot be zero-length"},
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{MNG_OBJECTUNKNOWN, "Object does not exist"},
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{MNG_OBJECTEXISTS, "Object already exists"},
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{MNG_TOOMUCHIDAT, "Too much data in IDAT chunk(s)"},
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{MNG_INVSAMPLEDEPTH, "The sample_depth is invalid"},
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{MNG_INVOFFSETSIZE, "The offset_type is invalid"},
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{MNG_INVENTRYTYPE, "The entry_type is invalid"},
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{MNG_ENDWITHNULL, "Chunk must not end with NULL byte"},
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{MNG_INVIMAGETYPE, "The image_type is invalid"},
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#ifndef MNG_NO_DELTA_PNG
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{MNG_INVDELTATYPE, "The delta_type is invalid"},
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#endif
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{MNG_INVALIDINDEX, "Index-value out of bounds"},
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#ifdef MNG_INCLUDE_JNG
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{MNG_TOOMUCHJDAT, "Too much data in JDAT chunk(s)"},
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{MNG_JPEGPARMSERR, "JHDR parameters & JFIF-data do not match"},
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#endif
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{MNG_INVFILLMETHOD, "The fill_method is invalid"},
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#ifndef MNG_NO_DELTA_PNG
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{MNG_OBJNOTCONCRETE, "Target object for DHDR must be concrete"},
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#endif
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{MNG_TARGETNOALPHA, "Target object must have alpha-channel"},
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{MNG_MNGTOOCOMPLEX, "MHDR simplicity indicates unsupported feature(s)"},
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{MNG_UNKNOWNCRITICAL, "Unknown critical chunk encountered"},
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#ifndef MNG_SKIPCHUNK_nEED
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{MNG_UNSUPPORTEDNEED, "Requested nEED resources are not supported"},
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#endif
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{MNG_INVALIDDELTA, "The delta operation is invalid (mismatched color_types?)"},
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{MNG_INVALIDMETHOD, "Method is invalid"},
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{MNG_IMPROBABLELENGTH, "Chunklength is incredibly large"},
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{MNG_INVALIDBLOCK, "Delta block width and or height invalid"},
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{MNG_INVALIDEVENT, "Event type is invalid"},
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{MNG_INVALIDMASK, "Mask type is invalid"},
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{MNG_NOMATCHINGLOOP, "ENDL without matching LOOP"},
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#ifndef MNG_SKIPCHUNK_evNT
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{MNG_SEEKNOTFOUND, "evNT points to unknown SEEK"},
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#endif
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#ifndef MNG_SKIPCHUNK_PAST
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{MNG_OBJNOTABSTRACT, "Destination object for PAST must be abstract"},
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#endif
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{MNG_TERMSEQERROR, "TERM misplaced during creation of MNG stream"},
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{MNG_INVALIDFIELDVAL, "invalid fieldvalue (generic)"},
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{MNG_INVALIDWIDTH, "invalid frame/image width"},
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{MNG_INVALIDHEIGHT, "invalid frame/image height"},
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{MNG_INVALIDCNVSTYLE, "Canvas_style is invalid"},
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{MNG_WRONGCHUNK, "Attempt to access the wrong chunk"},
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{MNG_INVALIDENTRYIX, "Attempt to access an non-existing entry"},
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{MNG_NOHEADER, "No valid header-chunk"},
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{MNG_NOCORRCHUNK, "Parent chunk not found"},
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{MNG_NOMHDR, "No MNG header (MHDR) found"},
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{MNG_IMAGETOOLARGE, "Image is larger than defined maximum"},
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{MNG_NOTANANIMATION, "Image is not an animation"},
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{MNG_FRAMENRTOOHIGH, "Framenr out of bounds"},
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{MNG_LAYERNRTOOHIGH, "Layernr out of bounds"},
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{MNG_PLAYTIMETOOHIGH, "Playtime out of bounds"},
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{MNG_FNNOTIMPLEMENTED, "Function not yet implemented"},
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{MNG_IMAGEFROZEN, "Image is frozen"},
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{MNG_LCMS_NOHANDLE, "Handle could not be initialized"},
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{MNG_LCMS_NOMEM, "No memory for gamma-table(s)"},
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{MNG_LCMS_NOTRANS, "Transformation could not be initialized"}
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};
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#endif /* MNG_INCLUDE_ERROR_STRINGS */
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/* ************************************************************************** */
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mng_bool mng_store_error (mng_datap pData,
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mng_retcode iError,
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mng_retcode iExtra1,
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mng_retcode iExtra2)
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{
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#ifdef MNG_SUPPORT_TRACE
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MNG_TRACEB (pData, MNG_FN_STORE_ERROR, MNG_LC_START);
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#endif
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if (pData != 0)
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{
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pData->iErrorcode = iError; /* save also for getlasterror */
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pData->iErrorx1 = iExtra1;
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pData->iErrorx2 = iExtra2;
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#ifdef MNG_INCLUDE_ERROR_STRINGS
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{ /* binary search variables */
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mng_int32 iTop, iLower, iUpper, iMiddle;
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mng_error_entryp pEntry; /* pointer to found entry */
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/* determine max index of table */
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iTop = (sizeof (error_table) / sizeof (error_table [0])) - 1;
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iLower = 0; /* initialize binary search */
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iMiddle = iTop >> 1; /* start in the middle */
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iUpper = iTop;
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pEntry = 0; /* no goods yet! */
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do /* the binary search itself */
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{
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if (error_table [iMiddle].iError < iError)
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iLower = iMiddle + 1;
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else if (error_table [iMiddle].iError > iError)
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iUpper = iMiddle - 1;
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else
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{
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pEntry = &error_table [iMiddle];
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break;
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}
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iMiddle = (iLower + iUpper) >> 1;
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}
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while (iLower <= iUpper);
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if (pEntry) /* found it ? */
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pData->zErrortext = pEntry->zErrortext;
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else
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pData->zErrortext = "Unknown error";
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}
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#else /* MNG_INCLUDE_ERROR_STRINGS */
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pData->zErrortext = 0;
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#endif /* MNG_INCLUDE_ERROR_STRINGS */
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if (iError == 0) /* no error is not severe ! */
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{
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pData->iSeverity = 0;
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}
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else
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{
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switch (iError&0x3C00) /* determine the severity */
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{
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case 0x0800 : { pData->iSeverity = 5; break; }
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case 0x1000 : { pData->iSeverity = 2; break; }
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case 0x2000 : { pData->iSeverity = 1; break; }
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default : { pData->iSeverity = 9; }
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}
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}
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}
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#ifdef MNG_SUPPORT_TRACE
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MNG_TRACEB (pData, MNG_FN_STORE_ERROR, MNG_LC_END);
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#endif
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return MNG_TRUE;
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}
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/* ************************************************************************** */
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mng_bool mng_process_error (mng_datap pData,
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mng_retcode iError,
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mng_retcode iExtra1,
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mng_retcode iExtra2)
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{
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#ifdef MNG_SUPPORT_TRACE
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MNG_TRACEB (pData, MNG_FN_PROCESS_ERROR, MNG_LC_START);
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#endif
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305 |
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|
|
306 |
mng_store_error (pData, iError, iExtra1, iExtra2);
|
|
|
307 |
|
|
|
308 |
if ((pData != MNG_NULL) && (pData->iMagic == MNG_MAGIC))
|
|
|
309 |
{
|
|
|
310 |
if (pData->fErrorproc) /* callback defined ? */
|
|
|
311 |
return pData->fErrorproc (((mng_handle)pData), iError, pData->iSeverity,
|
|
|
312 |
pData->iChunkname, pData->iChunkseq,
|
|
|
313 |
pData->iErrorx1, pData->iErrorx2, pData->zErrortext);
|
|
|
314 |
}
|
|
|
315 |
|
|
|
316 |
#ifdef MNG_SUPPORT_TRACE
|
|
|
317 |
MNG_TRACEB (pData, MNG_FN_PROCESS_ERROR, MNG_LC_END);
|
|
|
318 |
#endif
|
|
|
319 |
|
|
|
320 |
return MNG_TRUE; /* warnings are ignored by default ! */
|
|
|
321 |
}
|
|
|
322 |
|
|
|
323 |
/* ************************************************************************** */
|
|
|
324 |
/* * end of file * */
|
|
|
325 |
/* ************************************************************************** */
|
|
|
326 |
|