/*
* Function to enable/disable access to the frame buffer
*
* This is used when VT switching and when entering/leaving DGA direct mode.
*
* This has been rewritten again to eliminate the saved pixmap. The
* devPrivate field in the screen pixmap is set to NULL to catch code
* accidentally referencing the frame buffer while the X server is not
* supposed to touch it.
*
* Here, we exchange the pixmap private data, rather than the pixmaps
* themselves to avoid having to find and change any references to the screen
* pixmap such as GC's, window privates etc. This also means that this code
* does not need to know exactly how the pixmap pixels are accessed. Further,
* this exchange is >not< done through the screen's ModifyPixmapHeader()
* vector. This means the called frame buffer code layers can determine
* whether they are switched in or out by keeping track of the root pixmap's
* private data, and therefore don't need to access pScrnInfo->vtSema.
*/
void
xf86EnableDisableFBAccess(int scrnIndex, Bool enable)
{
ScrnInfoPtr pScrnInfo = xf86Screens[scrnIndex];
ScreenPtr pScreen = pScrnInfo->pScreen;
PixmapPtr pspix;
pspix = (*pScreen->GetScreenPixmap) (pScreen);
if (enable)
{
/*
* Restore all of the clip lists on the screen
*/
if (!xf86Resetting)
SetRootClip (pScreen, TRUE);
}
else
{
/*
* Empty all of the clip lists on the screen
*/
SetRootClip (pScreen, FALSE);
}
}
static Bool
xwl_glamor_create_screen_resources(ScreenPtr screen)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
int ret;
screen->CreateScreenResources = xwl_screen->CreateScreenResources;
ret = (*screen->CreateScreenResources) (screen);
xwl_screen->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xwl_glamor_create_screen_resources;
if (!ret)
return ret;
if (xwl_screen->rootless) {
screen->devPrivate =
fbCreatePixmap(screen, 0, 0, screen->rootDepth, 0);
SetRootClip(screen, FALSE);
}
else {
screen->devPrivate =
xwl_glamor_create_pixmap(screen, screen->width, screen->height,
screen->rootDepth,
CREATE_PIXMAP_USAGE_BACKING_PIXMAP);
if (screen->devPrivate)
glamor_set_screen_pixmap(screen->devPrivate, NULL);
}
return screen->devPrivate != NULL;
}
void
winDoRandRScreenSetSize (ScreenPtr pScreen,
CARD16 width,
CARD16 height,
CARD32 mmWidth,
CARD32 mmHeight)
{
winScreenPriv(pScreen);
winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
WindowPtr pRoot = pScreen->root;
// Prevent screen updates while we change things around
SetRootClip(pScreen, FALSE);
/* Update the screen size as requested */
pScreenInfo->dwWidth = width;
pScreenInfo->dwHeight = height;
/* Reallocate the framebuffer used by the drawing engine */
(*pScreenPriv->pwinFreeFB)(pScreen);
if (!(*pScreenPriv->pwinAllocateFB)(pScreen))
{
ErrorF ("winDoRandRScreenSetSize - Could not reallocate framebuffer\n");
}
pScreen->width = width;
pScreen->height = height;
pScreen->mmWidth = mmWidth;
pScreen->mmHeight = mmHeight;
/* Update the screen pixmap to point to the new framebuffer */
winUpdateFBPointer(pScreen, pScreenInfo->pfb);
// pScreen->devPrivate == pScreen->GetScreenPixmap(screen) ?
// resize the root window
//pScreen->ResizeWindow(pRoot, 0, 0, width, height, NULL);
// does this emit a ConfigureNotify??
// Restore the ability to update screen, now with new dimensions
SetRootClip(pScreen, TRUE);
// and arrange for it to be repainted
miPaintWindow(pRoot, &pRoot->borderClip, PW_BACKGROUND);
/* Indicate that a screen size change took place */
RRScreenSizeNotify(pScreen);
}
void
KdDisableScreen (ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
if (!pScreenPriv->enabled)
return;
if (!pScreenPriv->closed)
SetRootClip (pScreen, FALSE);
KdDisableColormap (pScreen);
if (!pScreenPriv->screen->dumb && pScreenPriv->card->cfuncs->disableAccel)
(*pScreenPriv->card->cfuncs->disableAccel) (pScreen);
if (!pScreenPriv->screen->softCursor && pScreenPriv->card->cfuncs->disableCursor)
(*pScreenPriv->card->cfuncs->disableCursor) (pScreen);
if (pScreenPriv->card->cfuncs->dpms)
(*pScreenPriv->card->cfuncs->dpms) (pScreen, KD_DPMS_NORMAL);
pScreenPriv->enabled = FALSE;
if(pScreenPriv->card->cfuncs->disable)
(*pScreenPriv->card->cfuncs->disable) (pScreen);
}
Bool
KdEnableScreen (ScreenPtr pScreen)
{
KdScreenPriv (pScreen);
if (pScreenPriv->enabled)
return TRUE;
if(pScreenPriv->card->cfuncs->enable)
if (!(*pScreenPriv->card->cfuncs->enable) (pScreen))
return FALSE;
pScreenPriv->enabled = TRUE;
pScreenPriv->dpmsState = KD_DPMS_NORMAL;
pScreenPriv->card->selected = pScreenPriv->screen->mynum;
if (!pScreenPriv->screen->softCursor && pScreenPriv->card->cfuncs->enableCursor)
(*pScreenPriv->card->cfuncs->enableCursor) (pScreen);
if (!pScreenPriv->screen->dumb && pScreenPriv->card->cfuncs->enableAccel)
(*pScreenPriv->card->cfuncs->enableAccel) (pScreen);
KdEnableColormap (pScreen);
SetRootClip (pScreen, TRUE);
if (pScreenPriv->card->cfuncs->dpms)
(*pScreenPriv->card->cfuncs->dpms) (pScreen, pScreenPriv->dpmsState);
return TRUE;
}
