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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2009 NoMachine, http://www.nomachine.com/. */
/* */
/* NXAGENT, NX protocol compression and NX extensions to this software */
/* are copyright of NoMachine. Redistribution and use of the present */
/* software is allowed according to terms specified in the file LICENSE */
/* which comes in the source distribution. */
/* */
/* Check http://www.nomachine.com/licensing.html for applicability. */
/* */
/* NX and NoMachine are trademarks of Medialogic S.p.A. */
/* */
/* All rights reserved. */
/* */
/**************************************************************************/
#ifndef __Image_H__
#define __Image_H__
/*
* Graphic operations.
*/
void nxagentPutImage(DrawablePtr pDrawable, GCPtr pGC, int depth,
int dstX, int dstY, int dstWidth, int dstHeight,
int leftPad, int format, char *data);
void nxagentRealizeImage(DrawablePtr pDrawable, GCPtr pGC, int depth,
int x, int y, int w, int h, int leftPad,
int format, char *data);
void nxagentPutSubImage(DrawablePtr pDrawable, GCPtr pGC, int depth,
int x, int y, int w, int h, int leftPad, int format,
char *data, Visual *pVisual);
void nxagentGetImage(DrawablePtr pDrawable, int x, int y, int w, int h,
unsigned int format, unsigned long planeMask, char *data);
/*
* Pack and split parameters we get
* from the NX transport.
*/
extern int nxagentPackLossless;
extern int nxagentPackMethod;
extern int nxagentPackQuality;
extern int nxagentSplitThreshold;
/*
* Set if images can use the alpha
* channel and if the alpha channel
* can be sent in compressed form.
*/
extern int nxagentAlphaEnabled;
extern int nxagentAlphaCompat;
/*
* Reset the visual and alpha cache
* before closing the screen or con-
* necting to a different display.
*/
void nxagentResetVisualCache(void);
void nxagentResetAlphaCache(void);
/*
* Always use the default visual for the
* image related functions.
*/
#define nxagentImageVisual(pDrawable, depth) \
((depth) == 32 ? &nxagentAlphaVisual : \
nxagentDefaultVisual(((pDrawable) -> pScreen)))
/*
* Byte swap the image if the display
* uses a different endianess.
*/
#define nxagentImageNormalize(image) \
((image) -> byte_order != IMAGE_BYTE_ORDER || \
(image) -> bitmap_bit_order != BITMAP_BIT_ORDER ? \
nxagentImageReformat((image) -> data, (image) -> bytes_per_line * \
(image) -> height * ((image) -> format == XYPixmap ? (image) -> depth : 1), \
((image) -> format == ZPixmap ? \
BitsPerPixel((image) -> depth) : 1), \
(image) -> byte_order) : 0)
/*
* Other image related functions.
*/
int nxagentImageLength(int width, int height, int format, int leftPad, int depth);
int nxagentImagePad(int width, int format, int leftPad, int depth);
int nxagentImageReformat(char *base, int nbytes, int bpp, int order);
void nxagentImageStatisticsHandler(char **buffer, int type);
int nxagentScaleImage(int x, int y, unsigned xRatio, unsigned yRatio, XImage **pImage, int *scaledx, int *scaledy);
char *nxagentAllocateImageData(int width, int height, int depth, int *length, int *format);
#endif /* __Image_H__ */
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