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/* Copyrightg (c) 2006 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
* AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "shadow.h"
#include "geode.h"
static void *
GXWindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
CARD32 *size, void *closure)
{
ScrnInfoPtr pScrni = xf86ScreenToScrn(pScreen);
GeodeRec *pGeode = GEODEPTR(pScrni);
*size = pGeode->displayPitch;
return (pGeode->FBBase + pGeode->displayOffset) +
row * pGeode->displayPitch + offset;
}
static void
GXUpdate(ScreenPtr pScreen, shadowBufPtr pBuf)
{
ScrnInfoPtr pScrni = xf86ScreenToScrn(pScreen);
GeodeRec *pGeode = GEODEPTR(pScrni);
int rotate = pGeode->rotation;
switch (rotate) {
case RR_Rotate_90:
if (pScrni->bitsPerPixel == 8)
shadowUpdateRotate8_90(pScreen, pBuf);
else if (pScrni->bitsPerPixel == 16)
shadowUpdateRotate16_90(pScreen, pBuf);
else
shadowUpdateRotate32_90(pScreen, pBuf);
break;
case RR_Rotate_180:
if (pScrni->bitsPerPixel == 8)
shadowUpdateRotate8_180(pScreen, pBuf);
else if (pScrni->bitsPerPixel == 16)
shadowUpdateRotate16_180(pScreen, pBuf);
else
shadowUpdateRotate32_180(pScreen, pBuf);
break;
case RR_Rotate_270:
if (pScrni->bitsPerPixel == 8)
shadowUpdateRotate8_270(pScreen, pBuf);
else if (pScrni->bitsPerPixel == 16)
shadowUpdateRotate16_270(pScreen, pBuf);
else
shadowUpdateRotate32_270(pScreen, pBuf);
break;
}
}
Bool
GXRotate(ScrnInfoPtr pScrni, DisplayModePtr mode)
{
GeodeRec *pGeode = GEODEPTR(pScrni);
Rotation curr = pGeode->rotation;
unsigned int curdw = pScrni->displayWidth;
PixmapPtr pPixmap;
BOOL ret;
pPixmap = pScrni->pScreen->GetScreenPixmap(pScrni->pScreen);
pGeode->rotation = GXGetRotation(pScrni->pScreen);
/* Leave if we have nothing to do */
if (pGeode->rotation == curr && pGeode->curMode == mode) {
return TRUE;
}
shadowRemove(pScrni->pScreen, NULL);
switch (pGeode->rotation) {
case RR_Rotate_0:
ErrorF("Rotate to 0 degrees\n");
pScrni->displayWidth = pGeode->displayWidth;
pGeode->Pitch = pGeode->displayPitch;
break;
case RR_Rotate_90:
ErrorF("Rotate to 90 degrees\n");
pScrni->displayWidth = pScrni->pScreen->width;
break;
case RR_Rotate_180:
ErrorF("Rotate to 180 degrees\n");
pScrni->displayWidth = pGeode->displayWidth;
break;
case RR_Rotate_270:
ErrorF("Rotate to 270 degrees\n");
pScrni->displayWidth = pScrni->pScreen->width;
break;
}
if (pGeode->rotation != RR_Rotate_0) {
ret =
shadowAdd(pScrni->pScreen, pPixmap, GXUpdate, GXWindowLinear,
pGeode->rotation, NULL);
if (!ret) {
ErrorF("shadowAdd failed\n");
goto error;
}
}
if (pGeode->rotation == RR_Rotate_0)
pScrni->fbOffset = pGeode->displayOffset;
else
pScrni->fbOffset = pGeode->shadowOffset;
pScrni->pScreen->ModifyPixmapHeader(pPixmap,
pScrni->pScreen->width,
pScrni->pScreen->height,
pScrni->pScreen->rootDepth,
pScrni->bitsPerPixel,
PixmapBytePad(pScrni->displayWidth,
pScrni->
pScreen->rootDepth),
(pointer) (pGeode->FBBase +
pScrni->fbOffset));
return TRUE;
error:
/* Restore the old rotation */
pScrni->displayWidth = curdw;
if (curr & (RR_Rotate_0 | RR_Rotate_180)) {
pScrni->pScreen->width = pScrni->virtualX;
pScrni->pScreen->height = pScrni->virtualY;
}
else {
pScrni->pScreen->width = pScrni->virtualY;
pScrni->pScreen->height = pScrni->virtualX;
}
pGeode->rotation = curr;
return FALSE;
}
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