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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 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 __Pixels_H__
#define __Pixels_H__
#include "Visual.h"
#include "Drawable.h"
#include "Composite.h"
/*
* Count how many pixels are different
* in the image.
*/
int nxagentUniquePixels(XImage *image);
/*
* Convert a 32 bit pixel to 16 bit.
*/
#define Color32to16(color) \
do \
{ \
Visual *pVisual; \
\
pVisual = nxagentDefaultVisual(nxagentDefaultScreen); \
\
if (pVisual -> green_mask == 0x7e0) \
{ \
/* \
* bit mask 5-6-5 \
*/ \
\
color = (((color & (pVisual -> blue_mask << 3)) >> 3) | \
((color & (pVisual -> green_mask << 5)) >> 5) | \
((color & (pVisual -> red_mask << 8)) >> 8)); \
} \
else \
{ \
/* \
* bit mask 5-5-5 \
*/ \
\
color = (((color & (pVisual -> blue_mask << 3)) >> 3) | \
((color & (pVisual -> green_mask << 6)) >> 6) | \
((color & (pVisual -> red_mask << 9)) >> 9)); \
} \
} \
while (0)
/*
* Rules to break the synchronization loop.
*/
#define breakOnBlocking(mask) \
(((mask) != NEVER_BREAK) && ((mask) & BLOCKING_BREAK) && \
nxagentBlocking == 1)
#define breakOnCongestion(mask) \
(((mask) != NEVER_BREAK) && ((mask) & CONGESTION_BREAK) && \
nxagentCongestion > 4)
#define breakOnBlockingOrCongestion(mask) \
(breakOnBlocking(mask) != 0 || breakOnCongestion(mask) != 0)
#define breakOnCongestionDrawable(mask, pDrawable) \
(((mask) != NEVER_BREAK) && ((mask) & CONGESTION_BREAK) && \
(nxagentCongestion > 4 || \
((pDrawable) -> type == DRAWABLE_PIXMAP && \
nxagentCongestion > 1)))
#define breakOnEvent(mask) \
(((mask) != NEVER_BREAK) && ((mask) & EVENT_BREAK) && \
nxagentUserInput(NULL) == 1)
#define canBreakOnTimeout(mask) \
(((mask) != NEVER_BREAK) && nxagentOption(Shadow) == 0)
/*
* Macros defining the conditions to
* defer X requests.
*/
#define NXAGENT_SHOULD_DEFER_TRAPEZOIDS(pDrawable) \
(nxagentOption(DeferLevel) >= 2 && \
nxagentDrawableContainGlyphs(pDrawable) == 0 && \
nxagentOption(LinkType) < LINK_TYPE_ADSL && \
nxagentCongestion > 4)
/*
FIXME: The condition checking for the render
version is a workaround implemented to
avoid problems with the render composi-
te on XFree86 remote server.
*/
/*
FIXME: Changed macro: NXAGENT_SHOULD_DEFER_COMPOSITE
to handle situation, when pSrc -> pDrawable
is NULL. This case happens with gradients
and solid fill.
#define NXAGENT_SHOULD_DEFER_COMPOSITE(pSrc, pMask, pDst) \
((nxagentRenderVersionMajor == 0 && \
nxagentRenderVersionMinor == 8 && \
(pDst) -> pDrawable -> type == DRAWABLE_PIXMAP) || \
((pDst) -> pDrawable -> type == DRAWABLE_PIXMAP && \
(nxagentDrawableStatus((pSrc) -> pDrawable) == NotSynchronized || \
((pMask) && nxagentDrawableStatus((pMask) -> pDrawable) == NotSynchronized)) && \
nxagentOption(DeferLevel) == 1) || \
(nxagentOption(DeferLevel) >= 2 && \
nxagentOption(LinkType) < LINK_TYPE_ADSL))
*/
#define NXAGENT_SHOULD_DEFER_COMPOSITE(pSrc, pMask, pDst) \
((nxagentRenderVersionMajor == 0 && \
nxagentRenderVersionMinor == 8 && \
(pDst) -> pDrawable -> type == DRAWABLE_PIXMAP) || \
(nxagentOption(DeferLevel) >= 2 && \
nxagentOption(LinkType) < LINK_TYPE_ADSL) || \
(nxagentOption(DeferLevel) == 1 && \
(pDst) -> pDrawable -> type == DRAWABLE_PIXMAP && \
(((pSrc) -> pDrawable && nxagentDrawableStatus((pSrc) -> pDrawable) == NotSynchronized) || \
((pMask) && (pMask) -> pDrawable && nxagentDrawableStatus((pMask) -> pDrawable) == NotSynchronized))))
#define NXAGENT_SHOULD_DEFER_PUTIMAGE(pDrawable) \
(nxagentSplitTrap == 0 && \
nxagentOption(DeferLevel) > 0)
/*
* Macros defining the conditions to
* start the synchronization loops of
* resources.
*/
#define NXAGENT_SHOULD_SYNCHRONIZE_CORRUPTED_WINDOWS(mask) \
((nxagentCorruptedWindows > 0 && breakOnBlockingOrCongestion(mask) == 0) || \
mask == NEVER_BREAK)
#define NXAGENT_SHOULD_SYNCHRONIZE_CORRUPTED_BACKGROUNDS(mask) \
((nxagentCorruptedWindows == 0 && nxagentCorruptedBackgrounds > 0 && \
breakOnBlockingOrCongestion(mask) == 0) || mask == NEVER_BREAK)
#define NXAGENT_SHOULD_SYNCHRONIZE_CORRUPTED_PIXMAPS(mask) \
((nxagentCorruptedWindows == 0 && nxagentCorruptedPixmaps > 0 && \
nxagentCongestion == 0 && nxagentBlocking == 0) || \
mask == NEVER_BREAK)
/*
* Macros defining the conditions to
* synchronize a single resource.
*/
#define NXAGENT_SHOULD_SYNCHRONIZE_WINDOW(pDrawable) \
(nxagentWindowIsVisible((WindowPtr) pDrawable) == 1 && \
(nxagentDefaultWindowIsVisible() == 1 || nxagentCompositeEnable == 1))
#define MINIMUM_PIXMAP_USAGE_COUNTER 2
#define NXAGENT_SHOULD_SYNCHRONIZE_PIXMAP(pDrawable) \
(nxagentPixmapUsageCounter((PixmapPtr) pDrawable) >= \
MINIMUM_PIXMAP_USAGE_COUNTER || \
nxagentIsCorruptedBackground((PixmapPtr) pDrawable) == 1)
#endif /* __Pixels_H__ */
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