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/*
* Copyright 2007 Luc Verhaegen <libv@exsuse.de>
* Copyright 2007 Matthias Hopf <mhopf@novell.com>
* Copyright 2007 Egbert Eich <eich@novell.com>
* Copyright 2007 Advanced Micro Devices, Inc.
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(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 "scrnintstr.h"
#include "shadow.h"
#include "fb.h"
#include "xf86.h"
#include "rhd.h"
typedef struct _rhdShadowRec
{
unsigned char *shadow;
CreateScreenResourcesProcPtr CreateScreenResources;
} rhdShadowRec;
Bool
RHDShadowPreInit(ScrnInfoPtr pScrn)
{
RHDPtr rhdPtr = RHDPTR(pScrn);
RHDFUNC(pScrn);
if (!xf86LoadSubModule(pScrn, "shadow")) {
return FALSE;
}
if (!(rhdPtr->shadowPtr = (rhdShadowPtr)xalloc(sizeof(rhdShadowRec))))
return FALSE;
xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Using ShadowFB\n");
return TRUE;
}
static void *
rhdShadowWindow(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
CARD32 *size, void *closure)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RHDPtr rhdPtr = RHDPTR(pScrn);
DEBUGP(RHDDebugVerb(pScrn->scrnIndex, 1, "FUNCTION: %s row: %i\n",__func__,row));
*size = pScrn->displayWidth * (pScrn->bitsPerPixel >> 3);
return ((CARD8 *)rhdPtr->FbBase + rhdPtr->FbScanoutStart
+ row * (*size) + offset);
}
static Bool
rhdShadowCreateScreenResources(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RHDPtr rhdPtr = RHDPTR(pScrn);
rhdShadowPtr shadowPtr = rhdPtr->shadowPtr;
Bool ret;
shadowUpdateProc update;
RHDFUNC(pScrn);
update = shadowUpdatePackedWeak();
pScreen->CreateScreenResources = shadowPtr->CreateScreenResources;
ret = pScreen->CreateScreenResources(pScreen);
pScreen->CreateScreenResources = rhdShadowCreateScreenResources;
shadowAdd(pScreen, pScreen->GetScreenPixmap(pScreen),
update,
rhdShadowWindow, 0, 0);
return ret;
}
Bool
RHDShadowScreenInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RHDPtr rhdPtr = RHDPTR(pScrn);
rhdShadowPtr shadowPtr = rhdPtr->shadowPtr;
Bool ret;
RHDFUNC(pScrn);
if (shadowPtr) {
if (!(shadowPtr->shadow
= xcalloc(1, pScrn->displayWidth * pScrn->virtualY
* ((pScrn->bitsPerPixel + 7) >> 3)))) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Failed to allocate shadow FB buffer\n");
return FALSE;
}
ret = fbScreenInit(pScreen,
(CARD8 *) shadowPtr->shadow,
pScrn->virtualX, pScrn->virtualY,
pScrn->xDpi, pScrn->yDpi,
pScrn->displayWidth, pScrn->bitsPerPixel);
if (!ret) {
xfree(shadowPtr->shadow);
shadowPtr->shadow = NULL;
}
return ret;
}
return FALSE;
}
Bool
RHDShadowSetup(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RHDPtr rhdPtr = RHDPTR(pScrn);
rhdShadowPtr shadowPtr = rhdPtr->shadowPtr;
RHDFUNC(pScrn);
if (!shadowPtr || !shadowPtr->shadow)
return TRUE;
if (!shadowSetup(pScreen))
return FALSE;
shadowPtr->CreateScreenResources = pScreen->CreateScreenResources;
pScreen->CreateScreenResources = rhdShadowCreateScreenResources;
return TRUE;
}
Bool
RHDShadowCloseScreen(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
RHDPtr rhdPtr = RHDPTR(pScrn);
rhdShadowPtr shadowPtr = rhdPtr->shadowPtr;
RHDFUNC(pScrn);
if (!shadowPtr)
return TRUE;
xfree(shadowPtr->shadow);
shadowPtr->shadow = NULL;
return TRUE;
}
void
RHDShadowDestroy(RHDPtr rhdPtr)
{
RHDFUNC(rhdPtr);
if (rhdPtr->shadowPtr) {
xfree(rhdPtr->shadowPtr);
rhdPtr->shadowPtr = NULL;
}
}
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