[PATCH 35/36] dix/randr: add a hook into screen to replace scanout pixmap
Dave Airlie
airlied at gmail.com
Thu Jul 5 08:21:36 PDT 2012
From: Dave Airlie <airlied at redhat.com>
For DRI2 in some offload cases we need to set a new pixmap on the crtc,
this hook allows dri2 to call into randr to do the necessary work to set
a pixmap as the scanout pixmap for the crtc the drawable is currently on.
This is really only to be used for unredirected full screen apps in composited
environments.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
include/scrnintstr.h | 3 +++
randr/randr.c | 2 +-
randr/randrstr.h | 3 +++
randr/rrcrtc.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 65 insertions(+), 1 deletion(-)
diff --git a/include/scrnintstr.h b/include/scrnintstr.h
index 80601b9..df74073 100644
--- a/include/scrnintstr.h
+++ b/include/scrnintstr.h
@@ -351,6 +351,8 @@ typedef Bool (*StartPixmapTrackingProcPtr)(PixmapPtr, PixmapPtr,
typedef Bool (*StopPixmapTrackingProcPtr)(PixmapPtr, PixmapPtr);
+typedef Bool (*ReplaceScanoutPixmapProcPtr)(DrawablePtr, PixmapPtr, Bool);
+
typedef struct _Screen {
int myNum; /* index of this instance in Screens[] */
ATOM id;
@@ -510,6 +512,7 @@ typedef struct _Screen {
struct xorg_list offload_slave_list;
struct xorg_list offload_head;
+ ReplaceScanoutPixmapProcPtr ReplaceScanoutPixmap;
} ScreenRec;
static inline RegionPtr
diff --git a/randr/randr.c b/randr/randr.c
index ae81166..3050c54 100644
--- a/randr/randr.c
+++ b/randr/randr.c
@@ -324,7 +324,7 @@ RRScreenInit(ScreenPtr pScreen)
wrap(pScrPriv, pScreen, CloseScreen, RRCloseScreen);
pScreen->ConstrainCursorHarder = RRConstrainCursorHarder;
-
+ pScreen->ReplaceScanoutPixmap = RRReplaceScanoutPixmap;
pScrPriv->numOutputs = 0;
pScrPriv->outputs = NULL;
pScrPriv->numCrtcs = 0;
diff --git a/randr/randrstr.h b/randr/randrstr.h
index 64c9afb..968cd30 100644
--- a/randr/randrstr.h
+++ b/randr/randrstr.h
@@ -678,6 +678,9 @@ extern _X_EXPORT void
extern _X_EXPORT void
RRCrtcDetachScanoutPixmap(RRCrtcPtr crtc);
+extern _X_EXPORT Bool
+ RRReplaceScanoutPixmap(DrawablePtr pDrawable, PixmapPtr pPixmap, Bool enable);
+
/*
* Crtc dispatch
*/
diff --git a/randr/rrcrtc.c b/randr/rrcrtc.c
index 949ae60..1a6e593 100644
--- a/randr/rrcrtc.c
+++ b/randr/rrcrtc.c
@@ -1641,3 +1641,61 @@ RRConstrainCursorHarder(DeviceIntPtr pDev, ScreenPtr pScreen, int mode, int *x,
return;
}
}
+
+Bool
+RRReplaceScanoutPixmap(DrawablePtr pDrawable, PixmapPtr pPixmap, Bool enable)
+{
+ rrScrPriv(pDrawable->pScreen);
+ int i;
+ Bool size_fits = FALSE;
+ Bool changed = FALSE;
+ Bool ret = TRUE;
+
+ for (i = 0; i < pScrPriv->numCrtcs; i++) {
+ RRCrtcPtr crtc = pScrPriv->crtcs[i];
+
+ if (!crtc->mode && enable)
+ continue;
+
+ changed = FALSE;
+ if (crtc->mode && crtc->x == pDrawable->x &&
+ crtc->y == pDrawable->y &&
+ crtc->mode->mode.width == pDrawable->width &&
+ crtc->mode->mode.height == pDrawable->height)
+ size_fits = TRUE;
+
+ /* is the pixmap already set? */
+ if (crtc->scanout_pixmap == pPixmap) {
+ /* if its a disable then don't care about size */
+ if (enable == FALSE) {
+ /* set scanout to NULL */
+ crtc->scanout_pixmap = NULL;
+ changed = TRUE;
+ } else {
+ /* if the size fits then we are already setup */
+ if (size_fits)
+ return TRUE;
+ /* if the size no longer fits then drop off */
+ crtc->scanout_pixmap = NULL;
+ changed = TRUE;
+ ret = FALSE;
+ }
+ } else {
+ if (!size_fits)
+ return FALSE;
+ if (enable) {
+ crtc->scanout_pixmap = pPixmap;
+ pScrPriv->rrCrtcSetScanoutPixmap(crtc, pPixmap);
+ changed = TRUE;
+ }
+ }
+
+ if (changed && pScrPriv->rrCrtcSet) {
+ pScrPriv->rrCrtcSetScanoutPixmap(crtc, crtc->scanout_pixmap);
+
+ (*pScrPriv->rrCrtcSet) (pDrawable->pScreen, crtc, crtc->mode, crtc->x, crtc->y,
+ crtc->rotation, crtc->numOutputs, crtc->outputs);
+ }
+ }
+ return ret;
+}
--
1.7.10.2
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