twain3.0/3rdparty/hgOCR/leptonica/pngiostub.c

144 lines
4.9 KiB
C

/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*!
* \file pngiostub.c
* <pre>
*
* Stubs for pngio.c functions
* </pre>
*/
#ifdef HAVE_CONFIG_H
#include "config_auto.h"
#endif /* HAVE_CONFIG_H */
#include "allheaders.h"
/* --------------------------------------------*/
#if !HAVE_LIBPNG /* defined in environ.h */
/* --------------------------------------------*/
PIX * pixReadStreamPng(FILE *fp)
{
return (PIX * )ERROR_PTR("function not present", "pixReadStreamPng", NULL);
}
/* ----------------------------------------------------------------------*/
l_ok readHeaderPng(const char *filename, l_int32 *pwidth, l_int32 *pheight,
l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap)
{
return ERROR_INT("function not present", "readHeaderPng", 1);
}
/* ----------------------------------------------------------------------*/
l_ok freadHeaderPng(FILE *fp, l_int32 *pwidth, l_int32 *pheight,
l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap)
{
return ERROR_INT("function not present", "freadHeaderPng", 1);
}
/* ----------------------------------------------------------------------*/
l_ok readHeaderMemPng(const l_uint8 *data, size_t size, l_int32 *pwidth,
l_int32 *pheight, l_int32 *pbps, l_int32 *pspp,
l_int32 *piscmap)
{
return ERROR_INT("function not present", "readHeaderMemPng", 1);
}
/* ----------------------------------------------------------------------*/
l_int32 fgetPngResolution(FILE *fp, l_int32 *pxres, l_int32 *pyres)
{
return ERROR_INT("function not present", "fgetPngResolution", 1);
}
/* ----------------------------------------------------------------------*/
l_ok isPngInterlaced(const char *filename, l_int32 *pinterlaced)
{
return ERROR_INT("function not present", "isPngInterlaced", 1);
}
/* ----------------------------------------------------------------------*/
l_ok fgetPngColormapInfo(FILE *fp, PIXCMAP **pcmap, l_int32 *ptransparency)
{
return ERROR_INT("function not present", "fgetPngColormapInfo", 1);
}
/* ----------------------------------------------------------------------*/
l_ok pixWritePng(const char *filename, PIX *pix, l_float32 gamma)
{
return ERROR_INT("function not present", "pixWritePng", 1);
}
/* ----------------------------------------------------------------------*/
l_ok pixWriteStreamPng(FILE *fp, PIX *pix, l_float32 gamma)
{
return ERROR_INT("function not present", "pixWriteStreamPng", 1);
}
/* ----------------------------------------------------------------------*/
l_ok pixSetZlibCompression(PIX *pix, l_int32 compval)
{
return ERROR_INT("function not present", "pixSetZlibCompression", 1);
}
/* ----------------------------------------------------------------------*/
void l_pngSetReadStrip16To8(l_int32 flag)
{
L_ERROR("function not present\n", "l_pngSetReadStrip16To8");
return;
}
/* ----------------------------------------------------------------------*/
PIX * pixReadMemPng(const l_uint8 *filedata, size_t filesize)
{
return (PIX * )ERROR_PTR("function not present", "pixReadMemPng", NULL);
}
/* ----------------------------------------------------------------------*/
l_ok pixWriteMemPng(l_uint8 **pfiledata, size_t *pfilesize, PIX *pix,
l_float32 gamma)
{
return ERROR_INT("function not present", "pixWriteMemPng", 1);
}
/* --------------------------------------------*/
#endif /* !HAVE_LIBPNG */
/* --------------------------------------------*/