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Mostly fix rotation in the intel driver.

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Since recent(ish) changes we can allocate roatated framebuffers with tiling.
This was not taken into account. Fix this for the most part:
1) i830_display_tiled needs to check tiling on rotated buffers too.
2) PipeSetBase needs to not only set offset to 0 for roated shadow buffers, it
also needs to 0 DSPTILEOFF x/y too.

There seems to be a remaining issue with damage or similar causing some latency
on rotated screens, I have not managed to find this yet.

Tested by sereral on tech@ ok matthieu a couple of weeks ago (his mail slipped
though the cracks, hence late commit).
This commit is contained in:
oga 2012-03-13 22:44:44 +00:00
parent dab7eb1ed1
commit 563a654b98
1 changed files with 40 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
driver/xf86-video-intel/src/i830_display.c
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@ -941,31 +941,36 @@ i830PipeSetBase(xf86CrtcPtr crtc, int x, int y)
I830CrtcPrivatePtr intel_crtc = crtc->driver_private;
int plane = intel_crtc->plane;
unsigned long Start, Offset, Stride;
drm_intel_bo *bo;
int dspbase = (plane == 0 ? DSPABASE : DSPBBASE);
int dspsurf = (plane == 0 ? DSPASURF : DSPBSURF);
int dsptileoff = (plane == 0 ? DSPATILEOFF : DSPBTILEOFF);
int dspstride = (plane == 0) ? DSPASTRIDE : DSPBSTRIDE;
Offset = y * intel->front_pitch + x * intel->cpp;
crtc->x = x;
crtc->y = y;
Stride = intel->front_pitch;
if (intel->front_buffer == NULL) {
/* During startup we may be called as part of monitor detection while
bo = intel->front_buffer;
Offset = y * Stride + x * intel->cpp;
if (intel_crtc->rotate_bo != NULL) {
Stride = intel_crtc->rotate_pitch;
bo = intel_crtc->rotate_bo;
Offset = 0;
x = y = 0;
}
/*
* During startup we may be called as part of monitor detection while
* there is no memory allocation done, so just supply a dummy base
* address.
*/
if (bo == NULL) {
Start = 0;
} else if (crtc->rotatedData != NULL) {
/* offset is done by shadow painting code, not here */
Start = (char *)crtc->rotatedData - (char *)intel->FbBase;
Offset = 0;
Stride = intel_crtc->rotate_pitch;
} else {
Start = intel->front_buffer->offset;
Start = bo->offset;
}
crtc->x = x;
crtc->y = y;
OUTREG(dspstride, Stride);
if (IS_I965G(intel)) {
OUTREG(dspbase, Offset);
@ -1057,16 +1062,17 @@ static Bool
i830_display_tiled(xf86CrtcPtr crtc)
{
ScrnInfoPtr scrn = crtc->scrn;
I830CrtcPrivatePtr intel_crtc = crtc->driver_private;
intel_screen_private *intel = intel_get_screen_private(scrn);
drm_intel_bo *bo = intel->front_buffer;
/* Rotated data is currently linear, allocated either via XAA or EXA */
if (crtc->rotatedData)
return FALSE;
if (intel_crtc->rotate_bo != NULL)
bo = intel_crtc->rotate_bo;
if (intel->front_buffer) {
if (bo != NULL) {
uint32_t tiling_mode, swizzle;
if (drm_intel_bo_get_tiling(intel->front_buffer,
&tiling_mode, &swizzle) == 0 && tiling_mode != I915_TILING_NONE)
if (drm_intel_bo_get_tiling(bo, &tiling_mode, &swizzle) == 0 &&
tiling_mode != I915_TILING_NONE)
return TRUE;
}
@ -2755,7 +2761,7 @@ i830_crtc_shadow_allocate (xf86CrtcPtr crtc, int width, int height)
}
intel_crtc->rotate_pitch = rotate_pitch;
return intel->FbBase + intel_crtc->rotate_bo->offset;
return intel_crtc->rotate_bo;
}
/**
@ -2769,12 +2775,19 @@ i830_crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
I830CrtcPrivatePtr intel_crtc = crtc->driver_private;
PixmapPtr rotate_pixmap;
if (!data)
if (!data) {
data = i830_crtc_shadow_allocate (crtc, width, height);
if (!data) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Couldn't allocate shadow pixmap for rotated CRTC\n");
return NULL;
}
}
if (intel_crtc->rotate_bo == NULL) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Couldn't allocate shadow pixmap for rotated CRTC\n");
return NULL;
}
rotate_pixmap = GetScratchPixmapHeader(scrn->pScreen,
@ -2782,11 +2795,12 @@ i830_crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
scrn->depth,
scrn->bitsPerPixel,
intel_crtc->rotate_pitch,
data);
NULL);
if (rotate_pixmap == NULL) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Couldn't allocate shadow pixmap for rotated CRTC\n");
return NULL;
}
intel_set_pixmap_bo(rotate_pixmap, intel_crtc->rotate_bo);