libmng_prop_xs.c

奇趣公司比较新的qt/emd版本

/* ************************************************************************** */
/* *             For conditions of distribution and use,                    * */
/* *                see copyright notice in libmng.h                        * */
/* ************************************************************************** */
/* *                                                                        * */
/* * project   : libmng                                                     * */
/* * file      : libmng_prop_xs.c          copyright (c) 2000-2004 G.Juyn   * */
/* * version   : 1.0.9                                                      * */
/* *                                                                        * */
/* * purpose   : property get/set interface (implementation)                * */
/* *                                                                        * */
/* * author    : G.Juyn                                                     * */
/* *                                                                        * */
/* * comment   : implementation of the property get/set functions           * */
/* *                                                                        * */
/* * changes   : 0.5.1 - 05/08/2000 - G.Juyn                                * */
/* *             - fixed calling convention                                 * */
/* *             - changed strict-ANSI stuff                                * */
/* *             0.5.1 - 05/11/2000 - G.Juyn                                * */
/* *             - added set_outputprofile2 & set_srgbprofile2              * */
/* *             0.5.1 - 05/12/2000 - G.Juyn                                * */
/* *             - changed trace to macro for callback error-reporting      * */
/* *                                                                        * */
/* *             0.5.2 - 05/23/2000 - G.Juyn                                * */
/* *             - changed inclusion of cms-routines                        * */
/* *             0.5.2 - 05/24/2000 - G.Juyn                                * */
/* *             - added support for get/set default zlib/IJG parms         * */
/* *             0.5.2 - 05/31/2000 - G.Juyn                                * */
/* *             - fixed up punctuation (contribution by Tim Rowley)        * */
/* *             0.5.2 - 06/05/2000 - G.Juyn                                * */
/* *             - added support for RGB8_A8 canvasstyle                    * */
/* *                                                                        * */
/* *             0.5.3 - 06/21/2000 - G.Juyn                                * */
/* *             - added get/set for speedtype to facilitate testing        * */
/* *             - added get for imagelevel during processtext callback     * */
/* *             0.5.3 - 06/26/2000 - G.Juyn                                * */
/* *             - changed userdata variable to mng_ptr                     * */
/* *             0.5.3 - 06/29/2000 - G.Juyn                                * */
/* *             - fixed incompatible return-types                          * */
/* *                                                                        * */
/* *             0.9.1 - 07/08/2000 - G.Juyn                                * */
/* *             - added get routines for internal display variables        * */
/* *             - added get/set routines for suspensionmode variable       * */
/* *             0.9.1 - 07/15/2000 - G.Juyn                                * */
/* *             - added get/set routines for sectionbreak variable         * */
/* *                                                                        * */
/* *             0.9.2 - 07/31/2000 - G.Juyn                                * */
/* *             - added status_xxxx functions                              * */
/* *             0.9.2 - 08/05/2000 - G.Juyn                                * */
/* *             - changed file-prefixes                                    * */
/* *                                                                        * */
/* *             0.9.3 - 10/10/2000 - G.Juyn                                * */
/* *             - added support for alpha-depth prediction                 * */
/* *             0.9.3 - 10/16/2000 - G.Juyn                                * */
/* *             - added functions to retrieve PNG/JNG specific header-info * */
/* *             0.9.3 - 10/20/2000 - G.Juyn                                * */
/* *             - added get/set for bKGD preference setting                * */
/* *             0.9.3 - 10/21/2000 - G.Juyn                                * */
/* *             - added get function for interlace/progressive display     * */
/* *                                                                        * */
/* *             1.0.1 - 04/21/2001 - G.Juyn (code by G.Kelly)              * */
/* *             - added BGRA8 canvas with premultiplied alpha              * */
/* *             1.0.1 - 05/02/2001 - G.Juyn                                * */
/* *             - added "default" sRGB generation (Thanks Marti!)          * */
/* *                                                                        * */
/* *             1.0.2 - 06/23/2001 - G.Juyn                                * */
/* *             - added optimization option for MNG-video playback         * */
/* *             1.0.2 - 06/25/2001 - G.Juyn                                * */
/* *             - added option to turn off progressive refresh             * */
/* *                                                                        * */
/* *             1.0.3 - 08/06/2001 - G.Juyn                                * */
/* *             - added get function for last processed BACK chunk         * */
/* *                                                                        * */
/* *             1.0.4 - 06/22/2002 - G.Juyn                                * */
/* *             - B495442 - invalid returnvalue in mng_get_suspensionmode  * */
/* *                                                                        * */
/* *             1.0.5 - 09/14/2002 - G.Juyn                                * */
/* *             - added event handling for dynamic MNG                     * */
/* *             1.0.5 - 09/22/2002 - G.Juyn                                * */
/* *             - added bgrx8 canvas (filler byte)                         * */
/* *             1.0.5 - 11/07/2002 - G.Juyn                                * */
/* *             - added support to get totals after mng_read()             * */
/* *                                                                        * */
/* *             1.0.6 - 05/11/2003 - G. Juyn                               * */
/* *             - added conditionals around canvas update routines         * */
/* *             1.0.6 - 07/07/2003 - G.R-P                                 * */
/* *             - added conditionals around some JNG-supporting code       * */
/* *             1.0.6 - 07/11/2003 - G.R-P                                 * */
/* *             - added conditionals zlib and jpeg property accessors      * */
/* *             1.0.6 - 07/14/2003 - G.R-P                                 * */
/* *             - added conditionals around various unused functions       * */
/* *                                                                        * */
/* *             1.0.7 - 11/27/2003 - R.A                                   * */
/* *             - added CANVAS_RGB565 and CANVAS_BGR565                    * */
/* *             1.0.7 - 12/06/2003 - R.A                                   * */
/* *             - added CANVAS_RGBA565 and CANVAS_BGRA565                  * */
/* *             1.0.7 - 01/25/2004 - J.S                                   * */
/* *             - added premultiplied alpha canvas' for RGBA, ARGB, ABGR   * */
/* *             1.0.7 - 03/07/2004 - G.R-P.                                * */
/* *             - put gamma, cms-related functions inside #ifdef           * */
/* *                                                                        * */
/* *             1.0.8 - 04/02/2004 - G.Juyn                                * */
/* *             - added CRC existence & checking flags                     * */
/* *                                                                        * */
/* *             1.0.9 - 09/18/2004 - G.R-P.                                * */
/* *             - added some MNG_SUPPORT_WRITE conditionals                * */
/* *             1.0.9 - 10/03/2004 - G.Juyn                                * */
/* *             - added function to retrieve current FRAM delay            * */
/* *             1.0.9 - 10/14/2004 - G.Juyn                                * */
/* *             - added bgr565_a8 canvas-style (thanks to J. Elvander)     * */
/* *             1.0.9 - 12/20/2004 - G.Juyn                                * */
/* *             - cleaned up macro-invocations (thanks to D. Airlie)       * */
/* *                                                                        * */
/* ************************************************************************** */

#include "libmng.h"
#include "libmng_data.h"
#include "libmng_error.h"
#include "libmng_trace.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "libmng_objects.h"
#include "libmng_memory.h"
#include "libmng_cms.h"

#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
#pragma option -A                      /* force ANSI-C */
#endif

/* ************************************************************************** */
/* *                                                                        * */
/* *  Property set functions                                                * */
/* *                                                                        * */
/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_userdata (mng_handle hHandle,
                                       mng_ptr    pUserdata)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_USERDATA, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)
  ((mng_datap)hHandle)->pUserdata = pUserdata;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_USERDATA, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_canvasstyle (mng_handle hHandle,
                                          mng_uint32 iStyle)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CANVASSTYLE, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)

  switch (iStyle)
  {
#ifndef MNG_SKIPCANVAS_RGB8
    case MNG_CANVAS_RGB8    : break;
#endif
#ifndef MNG_SKIPCANVAS_RGBA8
    case MNG_CANVAS_RGBA8   : break;
#endif
#ifndef MNG_SKIPCANVAS_RGBA8_PM
    case MNG_CANVAS_RGBA8_PM: break;
#endif
#ifndef MNG_SKIPCANVAS_ARGB8
    case MNG_CANVAS_ARGB8   : break;
#endif
#ifndef MNG_SKIPCANVAS_ARGB8_PM
    case MNG_CANVAS_ARGB8_PM: break;
#endif
#ifndef MNG_SKIPCANVAS_RGB8_A8
    case MNG_CANVAS_RGB8_A8 : break;
#endif
#ifndef MNG_SKIPCANVAS_BGR8
    case MNG_CANVAS_BGR8    : break;
#endif
#ifndef MNG_SKIPCANVAS_BGRX8
    case MNG_CANVAS_BGRX8   : break;
#endif
#ifndef MNG_SKIPCANVAS_BGRA8
    case MNG_CANVAS_BGRA8   : break;
#endif
#ifndef MNG_SKIPCANVAS_BGRA8_PM
    case MNG_CANVAS_BGRA8_PM: break;
#endif
#ifndef MNG_SKIPCANVAS_ABGR8
    case MNG_CANVAS_ABGR8   : break;
#endif
#ifndef MNG_SKIPCANVAS_ABGR8_PM
    case MNG_CANVAS_ABGR8_PM: break;
#endif
#ifndef MNG_SKIPCANVAS_RGB565
    case MNG_CANVAS_RGB565  : break;
#endif
#ifndef MNG_SKIPCANVAS_RGBA565
    case MNG_CANVAS_RGBA565 : break;
#endif
#ifndef MNG_SKIPCANVAS_BGR565
    case MNG_CANVAS_BGR565  : break;
#endif
#ifndef MNG_SKIPCANVAS_BGRA565
    case MNG_CANVAS_BGRA565 : break;
#endif
#ifndef MNG_SKIPCANVAS_BGR565_A8
    case MNG_CANVAS_BGR565_A8 : break;
#endif
/*    case MNG_CANVAS_RGB16   : break; */
/*    case MNG_CANVAS_RGBA16  : break; */
/*    case MNG_CANVAS_ARGB16  : break; */
/*    case MNG_CANVAS_BGR16   : break; */
/*    case MNG_CANVAS_BGRA16  : break; */
/*    case MNG_CANVAS_ABGR16  : break; */
/*    case MNG_CANVAS_INDEX8  : break; */
/*    case MNG_CANVAS_INDEXA8 : break; */
/*    case MNG_CANVAS_AINDEX8 : break; */
/*    case MNG_CANVAS_GRAY8   : break; */
/*    case MNG_CANVAS_GRAY16  : break; */
/*    case MNG_CANVAS_GRAYA8  : break; */
/*    case MNG_CANVAS_GRAYA16 : break; */
/*    case MNG_CANVAS_AGRAY8  : break; */
/*    case MNG_CANVAS_AGRAY16 : break; */
/*    case MNG_CANVAS_DX15    : break; */
/*    case MNG_CANVAS_DX16    : break; */
    default                 : { MNG_ERROR (((mng_datap)hHandle), MNG_INVALIDCNVSTYLE) };
  }

  ((mng_datap)hHandle)->iCanvasstyle = iStyle;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CANVASSTYLE, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_bkgdstyle (mng_handle hHandle,
                                        mng_uint32 iStyle)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BKGDSTYLE, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)

  switch (iStyle)                      /* alpha-modes not supported */
  {
#ifndef MNG_SKIPCANVAS_RGB8
    case MNG_CANVAS_RGB8    : break;
#endif
#ifndef MNG_SKIPCANVAS_BGR8
    case MNG_CANVAS_BGR8    : break;
#endif
#ifndef MNG_SKIPCANVAS_BGRX8
    case MNG_CANVAS_BGRX8   : break;
#endif
#ifndef MNG_SKIPCANVAS_RGB565
    case MNG_CANVAS_RGB565  : break;
#endif
#ifndef MNG_SKIPCANVAS_BGR565
    case MNG_CANVAS_BGR565  : break;
#endif
/*    case MNG_CANVAS_RGB16   : break; */
/*    case MNG_CANVAS_BGR16   : break; */
/*    case MNG_CANVAS_INDEX8  : break; */
/*    case MNG_CANVAS_GRAY8   : break; */
/*    case MNG_CANVAS_GRAY16  : break; */
/*    case MNG_CANVAS_DX15    : break; */
/*    case MNG_CANVAS_DX16    : break; */
    default                 : MNG_ERROR (((mng_datap)hHandle), MNG_INVALIDCNVSTYLE);
  }

  ((mng_datap)hHandle)->iBkgdstyle = iStyle;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BKGDSTYLE, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_bgcolor (mng_handle hHandle,
                                      mng_uint16 iRed,
                                      mng_uint16 iGreen,
                                      mng_uint16 iBlue)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BGCOLOR, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)
  ((mng_datap)hHandle)->iBGred   = iRed;
  ((mng_datap)hHandle)->iBGgreen = iGreen;
  ((mng_datap)hHandle)->iBGblue  = iBlue;
  ((mng_datap)hHandle)->bUseBKGD = MNG_FALSE;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_BGCOLOR, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_usebkgd (mng_handle hHandle,
                                      mng_bool   bUseBKGD)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_USEBKGD, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)
  ((mng_datap)hHandle)->bUseBKGD = bUseBKGD;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_USEBKGD, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_storechunks (mng_handle hHandle,
                                          mng_bool   bStorechunks)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_STORECHUNKS, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)
  ((mng_datap)hHandle)->bStorechunks = bStorechunks;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_STORECHUNKS, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_sectionbreaks (mng_handle hHandle,
                                            mng_bool   bSectionbreaks)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_SECTIONBREAKS, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)
  ((mng_datap)hHandle)->bSectionbreaks = bSectionbreaks;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_SECTIONBREAKS, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_cacheplayback (mng_handle hHandle,
                                            mng_bool   bCacheplayback)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CACHEPLAYBACK, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)

  if (((mng_datap)hHandle)->bHasheader)
    MNG_ERROR (((mng_datap)hHandle), MNG_FUNCTIONINVALID);

  ((mng_datap)hHandle)->bCacheplayback = bCacheplayback;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CACHEPLAYBACK, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_doprogressive (mng_handle hHandle,
                                            mng_bool   bDoProgressive)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_DOPROGRESSIVE, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)

  ((mng_datap)hHandle)->bDoProgressive = bDoProgressive;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_DOPROGRESSIVE, MNG_LC_END);
#endif

  return MNG_NOERROR;
}

/* ************************************************************************** */

mng_retcode MNG_DECL mng_set_crcmode (mng_handle hHandle,
                                      mng_uint32 iCrcmode)
{
#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CRCMODE, MNG_LC_START);
#endif

  MNG_VALIDHANDLE (hHandle)

  ((mng_datap)hHandle)->iCrcmode = iCrcmode;

#ifdef MNG_SUPPORT_TRACE
  MNG_TRACE (((mng_datap)hHandle), MNG_FN_SET_CRCMODE, MNG_LC_END);
#endif

  return MNG_NOERROR;
}