[PATCH 4/4] dri2: Take an XID for tracking the DRI2 drawable
Kristian Høgsberg
krh at bitplanet.net
Sat May 1 10:32:00 PDT 2010
Some pixmaps (window pixmaps and scratch pixmaps) don't have the
drawable->id set and thus DRI2 gets confused when using that field
for looking up the DRI2 drawable. Go back to using privates for getting
at the DRI2 drawable from a DrawablePtr. We need to keep the resource
tracking in place so we can remove the DRI2 drawable when the X resource
it was created for goes away. Additionally, we also now track the DRI2
drawable using a client XID so we can reclaim the DRI2 drawable even if
the client goes before the drawable and doesn't destroy the DRI2 drawable.
Signed-off-by: Kristian Høgsberg <krh at bitplanet.net>
---
glx/glxcmds.c | 23 ++++---
glx/glxdri.c | 8 ++-
glx/glxdri2.c | 10 ++-
glx/glxdriswrast.c | 8 ++-
glx/glxscreens.h | 6 +-
hw/xfree86/dri2/dri2.c | 150 ++++++++++++++++++++++++++++++++++++++-------
hw/xfree86/dri2/dri2.h | 3 +-
hw/xfree86/dri2/dri2ext.c | 2 +-
8 files changed, 165 insertions(+), 45 deletions(-)
diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index 087d52e..ec3bbe6 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -512,8 +512,9 @@ __glXGetDrawable(__GLXcontext *glxc, GLXDrawable drawId, ClientPtr client,
if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error))
return NULL;
- pGlxDraw = glxc->pGlxScreen->createDrawable(glxc->pGlxScreen,
- pDraw, GLX_DRAWABLE_WINDOW,
+ pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen,
+ pDraw, drawId,
+ GLX_DRAWABLE_WINDOW,
drawId, glxc->config);
/* since we are creating the drawablePrivate, drawId should be new */
@@ -1104,15 +1105,17 @@ __glXDrawableRelease(__GLXdrawable *drawable)
}
static int
-DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config,
- DrawablePtr pDraw, XID glxDrawableId, int type)
+DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen,
+ __GLXconfig *config, DrawablePtr pDraw, XID drawableId,
+ XID glxDrawableId, int type)
{
__GLXdrawable *pGlxDraw;
if (pGlxScreen->pScreen != pDraw->pScreen)
return BadMatch;
- pGlxDraw = pGlxScreen->createDrawable(pGlxScreen, pDraw, type,
+ pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw,
+ drawableId, type,
glxDrawableId, config);
if (pGlxDraw == NULL)
return BadAlloc;
@@ -1125,7 +1128,7 @@ DoCreateGLXDrawable(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *conf
/* Add the glx drawable under the XID of the underlying X drawable
* too. That way we'll get a callback in DrawableGone and can
* clean up properly when the drawable is destroyed. */
- if (pDraw->id != glxDrawableId &&
+ if (drawableId != glxDrawableId &&
!AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) {
pGlxDraw->destroy (pGlxDraw);
return BadAlloc;
@@ -1153,7 +1156,7 @@ DoCreateGLXPixmap(ClientPtr client, __GLXscreen *pGlxScreen, __GLXconfig *config
return BadPixmap;
}
- err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw,
+ err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId,
glxDrawableId, GLX_DRAWABLE_PIXMAP);
return err;
@@ -1316,7 +1319,8 @@ DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId,
return BadAlloc;
return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable,
- glxDrawableId, GLX_DRAWABLE_PBUFFER);
+ glxDrawableId, glxDrawableId,
+ GLX_DRAWABLE_PBUFFER);
}
int __glXDisp_CreatePbuffer(__GLXclientState *cl, GLbyte *pc)
@@ -1439,7 +1443,8 @@ int __glXDisp_CreateWindow(__GLXclientState *cl, GLbyte *pc)
return err;
return DoCreateGLXDrawable(client, pGlxScreen, config,
- pDraw, req->glxwindow, GLX_DRAWABLE_WINDOW);
+ pDraw, req->window,
+ req->glxwindow, GLX_DRAWABLE_WINDOW);
}
int __glXDisp_DestroyWindow(__GLXclientState *cl, GLbyte *pc)
diff --git a/glx/glxdri.c b/glx/glxdri.c
index 9810a73..1d8c902 100644
--- a/glx/glxdri.c
+++ b/glx/glxdri.c
@@ -683,10 +683,12 @@ __glXDRIscreenCreateContext(__GLXscreen *baseScreen,
}
static __GLXdrawable *
-__glXDRIscreenCreateDrawable(__GLXscreen *screen,
+__glXDRIscreenCreateDrawable(ClientPtr client,
+ __GLXscreen *screen,
DrawablePtr pDraw,
- int type,
XID drawId,
+ int type,
+ XID glxDrawId,
__GLXconfig *glxConfig)
{
__GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
@@ -700,7 +702,7 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
return NULL;
if (!__glXDrawableInit(&private->base, screen,
- pDraw, type, drawId, glxConfig)) {
+ pDraw, type, glxDrawId, glxConfig)) {
xfree(private);
return NULL;
}
diff --git a/glx/glxdri2.c b/glx/glxdri2.c
index c34e29a..bad4516 100644
--- a/glx/glxdri2.c
+++ b/glx/glxdri2.c
@@ -430,10 +430,12 @@ __glXDRIscreenCreateContext(__GLXscreen *baseScreen,
}
static __GLXdrawable *
-__glXDRIscreenCreateDrawable(__GLXscreen *screen,
+__glXDRIscreenCreateDrawable(ClientPtr client,
+ __GLXscreen *screen,
DrawablePtr pDraw,
- int type,
XID drawId,
+ int type,
+ XID glxDrawId,
__GLXconfig *glxConfig)
{
__GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
@@ -446,7 +448,7 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
private->screen = driScreen;
if (!__glXDrawableInit(&private->base, screen,
- pDraw, type, drawId, glxConfig)) {
+ pDraw, type, glxDrawId, glxConfig)) {
xfree(private);
return NULL;
}
@@ -457,7 +459,7 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
private->base.waitGL = __glXDRIdrawableWaitGL;
private->base.waitX = __glXDRIdrawableWaitX;
- if (DRI2CreateDrawable(pDraw)) {
+ if (DRI2CreateDrawable(client, pDraw, drawId)) {
xfree(private);
return NULL;
}
diff --git a/glx/glxdriswrast.c b/glx/glxdriswrast.c
index 918383c..4ba448a 100644
--- a/glx/glxdriswrast.c
+++ b/glx/glxdriswrast.c
@@ -301,10 +301,12 @@ glxChangeGC(GCPtr gc, BITS32 mask, CARD32 val)
}
static __GLXdrawable *
-__glXDRIscreenCreateDrawable(__GLXscreen *screen,
+__glXDRIscreenCreateDrawable(ClientPtr client,
+ __GLXscreen *screen,
DrawablePtr pDraw,
- int type,
XID drawId,
+ int type,
+ XID glxDrawId,
__GLXconfig *glxConfig)
{
__GLXDRIscreen *driScreen = (__GLXDRIscreen *) screen;
@@ -319,7 +321,7 @@ __glXDRIscreenCreateDrawable(__GLXscreen *screen,
private->screen = driScreen;
if (!__glXDrawableInit(&private->base, screen,
- pDraw, type, drawId, glxConfig)) {
+ pDraw, type, glxDrawId, glxConfig)) {
xfree(private);
return NULL;
}
diff --git a/glx/glxscreens.h b/glx/glxscreens.h
index d52099f..861e03c 100644
--- a/glx/glxscreens.h
+++ b/glx/glxscreens.h
@@ -134,10 +134,12 @@ struct __GLXscreen {
__GLXconfig *modes,
__GLXcontext *shareContext);
- __GLXdrawable *(*createDrawable)(__GLXscreen *context,
+ __GLXdrawable *(*createDrawable)(ClientPtr client,
+ __GLXscreen *context,
DrawablePtr pDraw,
- int type,
XID drawId,
+ int type,
+ XID glxDrawId,
__GLXconfig *modes);
int (*swapInterval) (__GLXdrawable *drawable,
int interval);
diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c
index 6c4dabc..11442d0 100644
--- a/hw/xfree86/dri2/dri2.c
+++ b/hw/xfree86/dri2/dri2.c
@@ -37,6 +37,7 @@
#include <errno.h>
#include <xf86drm.h>
#include "xf86Module.h"
+#include "list.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "dixstruct.h"
@@ -50,12 +51,18 @@ CARD8 dri2_minor;
static int dri2ScreenPrivateKeyIndex;
static DevPrivateKey dri2ScreenPrivateKey = &dri2ScreenPrivateKeyIndex;
+static int dri2WindowPrivateKeyIndex;
+static DevPrivateKey dri2WindowPrivateKey = &dri2WindowPrivateKeyIndex;
+static int dri2PixmapPrivateKeyIndex;
+static DevPrivateKey dri2PixmapPrivateKey = &dri2PixmapPrivateKeyIndex;
static RESTYPE dri2DrawableRes;
typedef struct _DRI2Screen *DRI2ScreenPtr;
typedef struct _DRI2Drawable {
DRI2ScreenPtr dri2_screen;
+ DrawablePtr drawable;
+ struct list reference_list;
int width;
int height;
DRI2BufferPtr *buffers;
@@ -74,6 +81,7 @@ typedef struct _DRI2Drawable {
typedef struct _DRI2Screen {
ScreenPtr screen;
+ int refcnt;
unsigned int numDrivers;
const char **driverNames;
const char *deviceName;
@@ -99,35 +107,33 @@ DRI2GetScreen(ScreenPtr pScreen)
static DRI2DrawablePtr
DRI2GetDrawable(DrawablePtr pDraw)
{
- DRI2DrawablePtr pPriv;
- int rc;
+ WindowPtr pWin;
+ PixmapPtr pPixmap;
- rc = dixLookupResourceByType((pointer *) &pPriv, pDraw->id,
- dri2DrawableRes, NULL, DixReadAccess);
- if (rc != Success)
- return NULL;
-
- return pPriv;
+ if (pDraw->type == DRAWABLE_WINDOW) {
+ pWin = (WindowPtr) pDraw;
+ return dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey);
+ } else {
+ pPixmap = (PixmapPtr) pDraw;
+ return dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey);
+ }
}
-int
-DRI2CreateDrawable(DrawablePtr pDraw)
+static DRI2DrawablePtr
+DRI2AllocateDrawable(DrawablePtr pDraw)
{
DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
DRI2DrawablePtr pPriv;
CARD64 ust;
- int rc;
-
- rc = dixLookupResourceByType((pointer *) &pPriv, pDraw->id,
- dri2DrawableRes, NULL, DixReadAccess);
- if (rc == Success || rc != BadValue)
- return rc;
+ WindowPtr pWin;
+ PixmapPtr pPixmap;
pPriv = xalloc(sizeof *pPriv);
if (pPriv == NULL)
- return BadAlloc;
+ return NULL;
pPriv->dri2_screen = ds;
+ pPriv->drawable = pDraw;
pPriv->width = pDraw->width;
pPriv->height = pDraw->height;
pPriv->buffers = NULL;
@@ -145,9 +151,77 @@ DRI2CreateDrawable(DrawablePtr pDraw)
pPriv->swap_limit = 1; /* default to double buffering */
pPriv->last_swap_msc = 0;
pPriv->last_swap_ust = 0;
+ list_init(&pPriv->reference_list);
+
+ if (pDraw->type == DRAWABLE_WINDOW) {
+ pWin = (WindowPtr) pDraw;
+ dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, pPriv);
+ } else {
+ pPixmap = (PixmapPtr) pDraw;
+ dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, pPriv);
+ }
+
+ return pPriv;
+}
+
+typedef struct DRI2DrawableRefRec {
+ XID id;
+ XID dri2_id;
+ struct list link;
+} DRI2DrawableRefRec, *DRI2DrawableRefPtr;
+
+static DRI2DrawableRefPtr
+DRI2LookupDrawableRef(DRI2DrawablePtr pPriv, XID id)
+{
+ DRI2DrawableRefPtr ref;
+
+ list_for_each_entry(ref, &pPriv->reference_list, link) {
+ if (ref->id == id)
+ return ref;
+ }
+
+ return NULL;
+}
+
+static int
+DRI2AddDrawableRef(DRI2DrawablePtr pPriv, XID id, XID dri2_id)
+{
+ DRI2DrawableRefPtr ref;
+
+ ref = malloc(sizeof *ref);
+ if (ref == NULL)
+ return BadAlloc;
+
+ if (!AddResource(dri2_id, dri2DrawableRes, pPriv))
+ return BadAlloc;
+ if (!DRI2LookupDrawableRef(pPriv, id))
+ if (!AddResource(id, dri2DrawableRes, pPriv))
+ return BadAlloc;
+
+ ref->id = id;
+ ref->dri2_id = dri2_id;
+ list_add(&ref->link, &pPriv->reference_list);
+
+ return Success;
+}
- if (!AddResource(pDraw->id, dri2DrawableRes, pPriv))
+int
+DRI2CreateDrawable(ClientPtr client, DrawablePtr pDraw, XID id)
+{
+ DRI2DrawablePtr pPriv;
+ XID dri2_id;
+ int rc;
+
+ pPriv = DRI2GetDrawable(pDraw);
+ if (pPriv == NULL)
+ pPriv = DRI2AllocateDrawable(pDraw);
+ if (pPriv == NULL)
return BadAlloc;
+
+ dri2_id = FakeClientID(client->index);
+ rc = DRI2AddDrawableRef(pPriv, id, dri2_id);
+ if (rc != Success)
+ return rc;
return Success;
}
@@ -156,13 +230,45 @@ static int DRI2DrawableGone(pointer p, XID id)
{
DRI2DrawablePtr pPriv = p;
DRI2ScreenPtr ds = pPriv->dri2_screen;
- DrawablePtr root;
+ DRI2DrawableRefPtr ref, next;
+ WindowPtr pWin;
+ PixmapPtr pPixmap;
+ DrawablePtr pDraw;
int i;
- root = &WindowTable[ds->screen->myNum]->drawable;
+ list_for_each_entry_safe(ref, next, &pPriv->reference_list, link) {
+ if (ref->dri2_id == id) {
+ list_del(&ref->link);
+ /* If this was the last ref under this X drawable XID,
+ * unregister the X drawable resource. */
+ if (!DRI2LookupDrawableRef(pPriv, ref->id))
+ FreeResourceByType(ref->id, dri2DrawableRes, TRUE);
+ free(ref);
+ break;
+ }
+
+ if (ref->id == id) {
+ list_del(&ref->link);
+ FreeResourceByType(ref->dri2_id, dri2DrawableRes, TRUE);
+ free(ref);
+ }
+ }
+
+ if (!list_is_empty(&pPriv->reference_list))
+ return Success;
+
+ pDraw = pPriv->drawable;
+ if (pDraw->type == DRAWABLE_WINDOW) {
+ pWin = (WindowPtr) pDraw;
+ dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, NULL);
+ } else {
+ pPixmap = (PixmapPtr) pDraw;
+ dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, NULL);
+ }
+
if (pPriv->buffers != NULL) {
for (i = 0; i < pPriv->bufferCount; i++)
- (*ds->DestroyBuffer)(root, pPriv->buffers[i]);
+ (*ds->DestroyBuffer)(pDraw, pPriv->buffers[i]);
xfree(pPriv->buffers);
}
diff --git a/hw/xfree86/dri2/dri2.h b/hw/xfree86/dri2/dri2.h
index ce8a5df..5415a0b 100644
--- a/hw/xfree86/dri2/dri2.h
+++ b/hw/xfree86/dri2/dri2.h
@@ -198,7 +198,8 @@ extern _X_EXPORT Bool DRI2Connect(ScreenPtr pScreen,
extern _X_EXPORT Bool DRI2Authenticate(ScreenPtr pScreen, drm_magic_t magic);
-extern _X_EXPORT int DRI2CreateDrawable(DrawablePtr pDraw);
+extern _X_EXPORT int DRI2CreateDrawable(ClientPtr client,
+ DrawablePtr pDraw, XID id);
extern _X_EXPORT void DRI2DestroyDrawable(DrawablePtr pDraw);
diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c
index 17df130..58eaa10 100644
--- a/hw/xfree86/dri2/dri2ext.c
+++ b/hw/xfree86/dri2/dri2ext.c
@@ -167,7 +167,7 @@ ProcDRI2CreateDrawable(ClientPtr client)
&pDrawable, &status))
return status;
- status = DRI2CreateDrawable(pDrawable);
+ status = DRI2CreateDrawable(client, pDrawable, stuff->drawable);
if (status != Success)
return status;
--
1.7.0.1
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