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/*
* Copyright © 2006 Novell, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Novell, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* Novell, Inc. makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* NOVELL, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL NOVELL, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: David Reveman <davidr@novell.com>
*/
#ifndef COMPIZ_IMGPGN_H
#define COMPIZ_IMGPGN_H
#include <core/screen.h>
#include <core/string.h>
#include <core/pluginclasshandler.h>
#include <png.h>
#include <iosfwd>
extern const unsigned short PNG_SIG_SIZE;
class PngScreen :
public ScreenInterface,
public PluginClassHandler<PngScreen, CompScreen>
{
public:
PngScreen (CompScreen *screen);
~PngScreen ();
bool fileToImage (CompString &path,
CompSize &size,
int &stride,
void *&data);
bool imageToFile (CompString &path,
CompString &format,
CompSize &size,
int stride,
void *data);
private:
CompString fileNameWithExtension (CompString &path);
bool readPngData (png_struct *png,
png_info *info,
void *&data,
CompSize &size);
bool readPng (std::ifstream &file,
CompSize &size,
void *&data);
bool writePng (unsigned char *buffer,
std::ostream &file,
CompSize &size,
int stride);
};
class PngPluginVTable :
public CompPlugin::VTableForScreen<PngScreen>
{
public:
bool init ();
};
#endif
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