Aurelien
/
xf86-video-intel
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Shadow pixmaps use fixed offset of 0. 

Shadow pixmap contents are copied from the main frame buffer and contain
only the bits displayed by the crtc, not the whole frame buffer. The crtc
origin is always interpreted by the shadow copying code, the frame buffer
itself doesn't move.
This commit is contained in:
Keith Packard 2007-03-04 17:11:40 -08:00
parent 7d08f720a9
commit 6aeb855b9d
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/i830_display.c
View File

@ -359,10 +359,11 @@ i830PipeSetBase(xf86CrtcPtr crtc, int x, int y)
I830Ptr pI830 = I830PTR(pScrn);
I830CrtcPrivatePtr intel_crtc = crtc->driver_private;
int pipe = intel_crtc->pipe;
unsigned long Start;
unsigned long Start, Offset;
int dspbase = (pipe == 0 ? DSPABASE : DSPBBASE);
int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
Offset = ((y * pScrn->displayWidth + x) * pI830->cpp);
if (pI830->front_buffer == NULL) {
/* During startup we may be called as part of monitor detection while
* there is no memory allocation done, so just supply a dummy base
@ -370,7 +371,9 @@ i830PipeSetBase(xf86CrtcPtr crtc, int x, int y)
*/
Start = 0;
} else if (crtc->rotatedData != NULL) {
/* offset is done by shadow painting code, not here */
Start = (char *)crtc->rotatedData - (char *)pI830->FbBase;
Offset = 0;
} else if (I830IsPrimary(pScrn)) {
Start = pI830->front_buffer->offset;
} else {
@ -379,12 +382,12 @@ i830PipeSetBase(xf86CrtcPtr crtc, int x, int y)
}
if (IS_I965G(pI830)) {
OUTREG(dspbase, ((y * pScrn->displayWidth + x) * pI830->cpp));
OUTREG(dspbase, Offset);
(void) INREG(dspbase);
OUTREG(dspsurf, Start);
(void) INREG(dspsurf);
} else {
OUTREG(dspbase, Start + ((y * pScrn->displayWidth + x) * pI830->cpp));
OUTREG(dspbase, Start + Offset);
(void) INREG(dspbase);
}
}