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/*****************************************************************************
* driDrawable.c: Lean Version of DRI utilities.
*
* Copyright (c) 2005 Thomas Hellstrom. 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
* AUTHOR(S) OR COPYRIGHT HOLDER(S) 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include "xf86drm.h"
#include "drm.h"
#include "xf86dri.h"
#include "drm_sarea.h"
#include "driDrawable.h"
static unsigned
drawStamp(volatile drm_sarea_t *pSarea, int index)
{
return pSarea->drawableTable[index].stamp;
}
int
getDRIDrawableInfoLocked(void *drawHash, Display *display, int screen, Drawable draw,
unsigned lockFlags, int drmFD, drm_context_t drmContext,
drmAddress sarea, Bool updateInfo, drawableInfo **info,
unsigned long infoSize)
{
drawableInfo *drawInfo;
void *res;
drm_drawable_t drmDraw=0;
volatile drm_sarea_t *pSarea = (drm_sarea_t *) sarea;
drm_clip_rect_t *clipFront, *clipBack;
int ret;
if (drmHashLookup(drawHash, (unsigned long) draw, &res)) {
/*
* The drawable is unknown to us. Create it and put it in the
* hash table.
*/
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
if (!uniDRICreateDrawable(display, screen, draw,
&drmDraw)) {
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
return 1;
}
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
drawInfo = (drawableInfo *) malloc(infoSize);
if (!drawInfo) return 1;
drawInfo->drmDraw = drmDraw;
drawInfo->stamp = 0;
drawInfo->clipFront = 0;
drawInfo->clipBack = 0;
drmHashInsert( drawHash, (unsigned long) draw, drawInfo);
} else {
drawInfo = res;
}
drawInfo->touched = FALSE;
while (!drawInfo->clipFront || drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
/*
* The drawable has been touched since we last got info about it.
* obtain new info from the X server.
*/
drawInfo->touched = TRUE;
if (updateInfo || !drawInfo->clipFront) {
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
ret = uniDRIGetDrawableInfo(display, screen, draw,
&drawInfo->index, &drawInfo->stamp, &drawInfo->x,
&drawInfo->y, &drawInfo->w, &drawInfo->h,
&drawInfo->numClipFront, &clipFront,
&drawInfo->backX, &drawInfo->backY,
&drawInfo->numClipBack, &clipBack);
DRM_LIGHT_LOCK(drmFD, &pSarea->lock, drmContext);
/*
* Error. Probably the drawable is destroyed. Return error and old values.
*/
if (!ret) {
free(drawInfo);
drawInfo = NULL;
drmHashDelete(drawHash, (unsigned long) draw);
DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
uniDRIDestroyDrawable( display, screen, draw);
DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
return 1;
}
if (drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
/*
* The info is already outdated. Sigh. Have another go.
*/
XFree(clipFront);
XFree(clipBack);
continue;
}
if (drawInfo->clipFront) XFree(drawInfo->clipFront);
drawInfo->clipFront = clipFront;
if (drawInfo->clipBack) XFree(drawInfo->clipBack);
drawInfo->clipBack = clipBack;
} else {
if (!drawInfo->clipFront) drawInfo->clipFront = (drm_clip_rect_t *) ~0UL;
drawInfo->stamp = drawStamp(pSarea, drawInfo->index);
}
}
*info = drawInfo;
return 0;
}
void
driDestroyHashContents(void *drawHash)
{
unsigned long key;
void *content;
drawableInfo *drawInfo;
if (drmHashFirst(drawHash, &key, &content) < 1)
return;
drawInfo = (drawableInfo *) content;
if (drawInfo->clipBack) XFree(drawInfo->clipBack);
if (drawInfo->clipFront) XFree(drawInfo->clipFront);
free(drawInfo);
while(drmHashNext(drawHash, &key, &content) == 1) {
drawInfo = (drawableInfo *) content;
if (drawInfo->clipBack) XFree(drawInfo->clipBack);
if (drawInfo->clipFront) XFree(drawInfo->clipFront);
free(drawInfo);
}
return ;
}