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/* Copyrightg (c) 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
* 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 "amd.h"
static void *
LXWindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
CARD32 * size, void *closure)
{
ScrnInfoPtr pScrni = xf86Screens[pScreen->myNum];
GeodeRec *pGeode = GEODEPTR(pScrni);
*size = pGeode->displayPitch;
return (pGeode->FBBase + pGeode->displayOffset) +
row * pGeode->displayPitch + offset;
}
void
LXUpdateFunc(ScreenPtr pScreen, shadowBufPtr pBuf)
{
RegionPtr damage = shadowDamage (pBuf);
int nbox = REGION_NUM_RECTS (damage);
BoxPtr pbox = REGION_RECTS (damage);
int x, y, w, h, degrees;
FbStride shaStride;
FbBits *shaBits;
int shaBpp, dx, dy,dw, dh;
int shaXoff, shaYoff;
unsigned int srcOffset, dstOffset;
PixmapPtr pShadow = pBuf->pPixmap;
ScrnInfoPtr pScrni = xf86Screens[pScreen->myNum];
GeodeRec *pGeode = GEODEPTR(pScrni);
unsigned int srcBase;
fbGetDrawable (&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff,
shaYoff);
/* Set up the blt */
gp_declare_blt(0);
switch(shaBpp) {
case 8:
gp_set_source_format(CIMGP_SOURCE_FMT_3_3_2);
break;
case 16:
gp_set_source_format(CIMGP_SOURCE_FMT_0_5_6_5);
break;
case 32:
gp_set_source_format(CIMGP_SOURCE_FMT_8_8_8_8);
break;
}
gp_set_bpp(pScrni->bitsPerPixel);
gp_set_raster_operation(0xCC);
gp_write_parameters();
while(nbox--) {
x = pbox->x1;
y = pbox->y1;
w = (pbox->x2 - pbox->x1);
h = pbox->y2 - pbox->y1;
srcOffset = ((unsigned long) shaBits) - ((unsigned long) pGeode->FBBase);
srcOffset += (y * pGeode->Pitch) + (x * (shaBpp >> 3));
switch(pGeode->rotation) {
case RR_Rotate_90:
dx = (pScrni->pScreen->height - 1) - (y + (h-1));
dy = x;
dw = h;
dh = w;
degrees = 90;
break;
case RR_Rotate_180:
dx = (pScrni->pScreen->width - 1) - (x + (w-1));
dy = (pScrni->pScreen->height - 1) - (y + (h-1));
dw = w;
dh = h;
degrees = 180;
break;
case RR_Rotate_270:
dy = (pScrni->pScreen->width - 1) - (x + (w-1));
dx = y;
dw = h;
dh = w;
degrees = 270;
break;
}
dstOffset = pGeode->displayOffset +
(dy * pGeode->displayPitch) + (dx * (pScrni->bitsPerPixel >> 3));
gp_declare_blt(0);
gp_set_strides(pGeode->displayPitch, pGeode->Pitch);
gp_rotate_blt(dstOffset, srcOffset, w, h, degrees);
}
}
Bool
LXRotate(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 = LXGetRotation(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;
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;
}
/* Set the new drawing pitch */
if (pGeode->Compression)
pGeode->Pitch = LXCalculatePitchBytes(pScrni->displayWidth,
pScrni->bitsPerPixel);
else
pGeode->Pitch = (pScrni->displayWidth *
(pScrni->bitsPerPixel >> 3));
if (pGeode->rotation != RR_Rotate_0) {
ret = shadowAdd(pScrni->pScreen, pPixmap, LXUpdateFunc,
LXWindowLinear, pGeode->rotation, NULL);
/* XXX - FIXME - bail gracefully */
if (!ret)
ErrorF("shadowAdd failed\n");
}
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));
/* Don't use XAA pixmap cache or offscreen pixmaps when rotated */
if (pGeode->AccelInfoRec) {
if (pGeode->rotation == RR_Rotate_0) {
pGeode->AccelInfoRec->Flags = LINEAR_FRAMEBUFFER | OFFSCREEN_PIXMAPS | PIXMAP_CACHE;
pGeode->AccelInfoRec->UsingPixmapCache = TRUE;
pGeode->AccelInfoRec->maxOffPixWidth = 0;
pGeode->AccelInfoRec->maxOffPixHeight = 0;
}
else {
pGeode->AccelInfoRec->Flags = LINEAR_FRAMEBUFFER;
pGeode->AccelInfoRec->UsingPixmapCache = FALSE;
pGeode->AccelInfoRec->maxOffPixWidth = 1;
pGeode->AccelInfoRec->maxOffPixHeight = 1;
}
}
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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