/usr/include/crystalspace-2.0/cstool/debugimagewriter.h is in libcrystalspace-dev 2.0+dfsg-1build1.
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Copyright (C) 2004 by Jorrit Tyberghein
(C) 2004 by Frank Richter
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CS_CSTOOL_DEBUGIMAGEWRITER_H__
#define __CS_CSTOOL_DEBUGIMAGEWRITER_H__
/**\file
* Image object debugging helper
*/
#include "csutil/csstring.h"
#include "csutil/scf.h"
#include "igraphic/imageio.h"
#include "iutil/databuff.h"
#include "iutil/vfs.h"
#include "ivaria/reporter.h"
/**
* Helper class allowing in debug builds for to quickly dump an iImage
* object onto disk for visual inspection.
* \note Only works in debug builds.
*/
class CS_CRYSTALSPACE_EXPORT csDebugImageWriter
{
static void Report (int severity, const char* msg, ...)
{
#ifdef CS_DEBUG
va_list arg;
va_start (arg, msg);
csReportV (iSCF::SCF->object_reg, severity, "crystalspace.debugimagewriter",
msg, arg);
va_end (arg);
#endif
}
public:
/**
* Write an image onto disk.
* \param image The image to be written.
* \param filename The VFS name of the file to be written.
* \remarks \a filename is a string with printf() style format specifiers.
* \remarks If \a filename does not contain an absolute VFS path, it will
* be treated as relative to "/tmp/".
* \sa \ref FormatterNotes
*/
static void DebugImageWrite (iImage* image, const char* filename, ...)
{
#ifdef CS_DEBUG
CS_ASSERT(iSCF::SCF->object_reg);
csRef<iImageIO> imgsaver =
csQueryRegistry<iImageIO> (iSCF::SCF->object_reg);
if (!imgsaver)
{
Report (CS_REPORTER_SEVERITY_ERROR, "No iImageIO");
return;
}
csRef<iVFS> vfs =
csQueryRegistry<iVFS> (iSCF::SCF->object_reg);
if (!vfs)
{
Report (CS_REPORTER_SEVERITY_ERROR, "No iVFS");
return;
}
csString finalFilename;
va_list arg;
va_start (arg, filename);
finalFilename.FormatV (filename, arg);
va_end (arg);
csRef<iDataBuffer> buf = imgsaver->Save (image, "image/png");
if (!buf)
{
Report (CS_REPORTER_SEVERITY_ERROR, "Error saving image");
return;
}
vfs->PushDir ();
vfs->ChDir ("/tmp");
bool written = vfs->WriteFile (finalFilename, (char*)buf->GetInt8 (),
buf->GetSize ());
vfs->PopDir ();
if (!written)
{
Report (CS_REPORTER_SEVERITY_ERROR, "Could not write to %s",
finalFilename.GetData ());
}
#else
// Make -Wall happy
(void)image;
(void)filename;
#endif
}
};
#endif // __CS_CSTOOL_DEBUGIMAGEWRITER_H__
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