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/*
*Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
*
*Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
*"Software"), to deal in the Software without restriction, including
*without limitation the rights to use, copy, modify, merge, publish,
*distribute, sublicense, and/or sell copies of the Software, and to
*permit persons to whom the Software is furnished to do so, subject to
*the following conditions:
*
*The above copyright notice and this permission notice shall be
*included in all copies or substantial portions of the Software.
*
*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
*EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
*MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
*NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
*ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
*CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
*WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*Except as contained in this notice, the name of the XFree86 Project
*shall not be used in advertising or otherwise to promote the sale, use
*or other dealings in this Software without prior written authorization
*from the XFree86 Project.
*
* Authors: Keith Packard, MIT X Consortium
* Harold L Hunt II
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
/* See Porting Layer Definition - p. 58 */
/*
* Allocate indexes for the privates that we use.
* Allocate memory directly for the screen privates.
* Reserve space in GCs and Pixmaps for our privates.
* Colormap privates are handled in winAllocateCmapPrivates ()
*/
Bool
winAllocatePrivates (ScreenPtr pScreen)
{
winPrivScreenPtr pScreenPriv;
#if CYGDEBUG
winDebug ("winAllocateScreenPrivates - g_ulServerGeneration: %d "
"serverGeneration: %d\n",
g_ulServerGeneration, serverGeneration);
#endif
/* We need a new slot for our privates if the screen gen has changed */
if (g_ulServerGeneration != serverGeneration)
{
/* Get an index that we can store our privates at */
g_iScreenPrivateIndex = AllocateScreenPrivateIndex ();
g_iGCPrivateIndex = AllocateGCPrivateIndex ();
g_iPixmapPrivateIndex = AllocatePixmapPrivateIndex ();
g_iWindowPrivateIndex = AllocateWindowPrivateIndex ();
g_ulServerGeneration = serverGeneration;
}
/* Allocate memory for the screen private structure */
pScreenPriv = (winPrivScreenPtr) malloc (sizeof (winPrivScreenRec));
if (!pScreenPriv)
{
ErrorF ("winAllocateScreenPrivates - malloc () failed\n");
return FALSE;
}
/* Initialize the memory of the private structure */
ZeroMemory (pScreenPriv, sizeof (winPrivScreenRec));
/* Intialize private structure members */
pScreenPriv->fActive = TRUE;
/* Save the screen private pointer */
winSetScreenPriv (pScreen, pScreenPriv);
/* Reserve GC memory for our privates */
if (!AllocateGCPrivate (pScreen, g_iGCPrivateIndex,
sizeof (winPrivGCRec)))
{
ErrorF ("winAllocatePrivates - AllocateGCPrivate () failed\n");
return FALSE;
}
/* Reserve Pixmap memory for our privates */
if (!AllocatePixmapPrivate (pScreen, g_iPixmapPrivateIndex,
sizeof (winPrivPixmapRec)))
{
ErrorF ("winAllocatePrivates - AllocatePixmapPrivates () failed\n");
return FALSE;
}
/* Reserve Window memory for our privates */
if (!AllocateWindowPrivate (pScreen, g_iWindowPrivateIndex,
sizeof (winPrivWinRec)))
{
ErrorF ("winAllocatePrivates () - AllocateWindowPrivates () failed\n");
return FALSE;
}
return TRUE;
}
/*
* Colormap privates may be allocated after the default colormap has
* already been created for some screens. This initialization procedure
* is called for each default colormap that is found.
*/
Bool
winInitCmapPrivates (ColormapPtr pcmap, int index)
{
#if CYGDEBUG
winDebug ("winInitCmapPrivates\n");
#endif
/*
* I see no way that this function can do anything useful
* with only a ColormapPtr. We don't have the index for
* our dev privates yet, so we can't really initialize
* anything. Perhaps I am misunderstanding the purpose
* of this function.
*/
/* That's definitely true.
* I therefore changed the API and added the index as argument.
*/
return TRUE;
}
/*
* Allocate memory for our colormap privates
*/
Bool
winAllocateCmapPrivates (ColormapPtr pCmap)
{
winPrivCmapPtr pCmapPriv;
static unsigned long s_ulPrivateGeneration = 0;
#if CYGDEBUG
winDebug ("winAllocateCmapPrivates\n");
#endif
/* Get a new privates index when the server generation changes */
if (s_ulPrivateGeneration != serverGeneration)
{
/* Get an index that we can store our privates at */
g_iCmapPrivateIndex = AllocateColormapPrivateIndex (winInitCmapPrivates);
/* Save the new server generation */
s_ulPrivateGeneration = serverGeneration;
}
/* Allocate memory for our private structure */
pCmapPriv = (winPrivCmapPtr) malloc (sizeof (winPrivCmapRec));
if (!pCmapPriv)
{
ErrorF ("winAllocateCmapPrivates - malloc () failed\n");
return FALSE;
}
/* Initialize the memory of the private structure */
ZeroMemory (pCmapPriv, sizeof (winPrivCmapRec));
/* Save the cmap private pointer */
winSetCmapPriv (pCmap, pCmapPriv);
#if CYGDEBUG
winDebug ("winAllocateCmapPrivates - Returning\n");
#endif
return TRUE;
}
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