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authormarha <marha@users.sourceforge.net>2010-04-16 15:34:33 +0000
committermarha <marha@users.sourceforge.net>2010-04-16 15:34:33 +0000
commit0b8629ada4293370d220bbb7e6c195c711baee7d (patch)
treea7774b45662db90282ae18b17eb3d8f77d8c746d /xorg-server/hw/xfree86/dri2
parent8654ee514b4d79feec936501717a06892090d3b7 (diff)
downloadvcxsrv-0b8629ada4293370d220bbb7e6c195c711baee7d.tar.gz
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svn merge -r534:HEAD ^/branches/released .
Diffstat (limited to 'xorg-server/hw/xfree86/dri2')
-rw-r--r--xorg-server/hw/xfree86/dri2/dri2.c174
-rw-r--r--xorg-server/hw/xfree86/dri2/dri2.h542
-rw-r--r--xorg-server/hw/xfree86/dri2/dri2ext.c11
3 files changed, 402 insertions, 325 deletions
diff --git a/xorg-server/hw/xfree86/dri2/dri2.c b/xorg-server/hw/xfree86/dri2/dri2.c
index 48618e1a5..2bdb73392 100644
--- a/xorg-server/hw/xfree86/dri2/dri2.c
+++ b/xorg-server/hw/xfree86/dri2/dri2.c
@@ -45,6 +45,9 @@
#include "xf86.h"
+CARD8 dri2_major; /* version of DRI2 supported by DDX */
+CARD8 dri2_minor;
+
static int dri2ScreenPrivateKeyIndex;
static DevPrivateKey dri2ScreenPrivateKey = &dri2ScreenPrivateKeyIndex;
static int dri2WindowPrivateKeyIndex;
@@ -60,10 +63,13 @@ typedef struct _DRI2Drawable {
int bufferCount;
unsigned int swapsPending;
ClientPtr blockedClient;
+ Bool blockedOnMsc;
int swap_interval;
CARD64 swap_count;
- CARD64 target_sbc; /* -1 means no SBC wait outstanding */
+ int64_t target_sbc; /* -1 means no SBC wait outstanding */
CARD64 last_swap_target; /* most recently queued swap target */
+ CARD64 last_swap_msc; /* msc at completion of most recent swap */
+ CARD64 last_swap_ust; /* ust at completion of most recent swap */
int swap_limit; /* for N-buffering */
} DRI2DrawableRec, *DRI2DrawablePtr;
@@ -116,9 +122,11 @@ DRI2GetDrawable(DrawablePtr pDraw)
int
DRI2CreateDrawable(DrawablePtr pDraw)
{
+ DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
WindowPtr pWin;
PixmapPtr pPixmap;
DRI2DrawablePtr pPriv;
+ CARD64 ust;
pPriv = DRI2GetDrawable(pDraw);
if (pPriv != NULL)
@@ -138,11 +146,17 @@ DRI2CreateDrawable(DrawablePtr pDraw)
pPriv->bufferCount = 0;
pPriv->swapsPending = 0;
pPriv->blockedClient = NULL;
+ pPriv->blockedOnMsc = FALSE;
pPriv->swap_count = 0;
pPriv->target_sbc = -1;
pPriv->swap_interval = 1;
- pPriv->last_swap_target = -1;
+ /* Initialize last swap target from DDX if possible */
+ if (!ds->GetMSC || !(*ds->GetMSC)(pDraw, &ust, &pPriv->last_swap_target))
+ pPriv->last_swap_target = 0;
+
pPriv->swap_limit = 1; /* default to double buffering */
+ pPriv->last_swap_msc = 0;
+ pPriv->last_swap_ust = 0;
if (pDraw->type == DRAWABLE_WINDOW)
{
@@ -390,6 +404,15 @@ DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw)
return FALSE;
}
+static void
+__DRI2BlockClient(ClientPtr client, DRI2DrawablePtr pPriv)
+{
+ if (pPriv->blockedClient == NULL) {
+ IgnoreClient(client);
+ pPriv->blockedClient = client;
+ }
+}
+
void
DRI2BlockClient(ClientPtr client, DrawablePtr pDraw)
{
@@ -399,10 +422,8 @@ DRI2BlockClient(ClientPtr client, DrawablePtr pDraw)
if (pPriv == NULL)
return;
- if (pPriv->blockedClient == NULL) {
- IgnoreClient(client);
- pPriv->blockedClient = client;
- }
+ __DRI2BlockClient(client, pPriv);
+ pPriv->blockedOnMsc = TRUE;
}
int
@@ -483,6 +504,11 @@ DRI2WaitMSCComplete(ClientPtr client, DrawablePtr pDraw, int frame,
AttendClient(pPriv->blockedClient);
pPriv->blockedClient = NULL;
+ pPriv->blockedOnMsc = FALSE;
+
+ /* If there's still a swap pending, let DRI2SwapComplete free it */
+ if (pPriv->refCount == 0 && pPriv->swapsPending == 0)
+ DRI2FreeDrawable(pDraw);
}
static void
@@ -500,21 +526,26 @@ DRI2WakeClient(ClientPtr client, DrawablePtr pDraw, int frame,
}
/*
- * Swap completed. Either wake up an SBC waiter or a client that was
- * blocked due to GLX activity during a swap.
+ * Swap completed.
+ * Wake the client iff:
+ * - it was waiting on SBC
+ * - was blocked due to GLX make current
+ * - was blocked due to swap throttling
+ * - is not blocked due to an MSC wait
*/
if (pPriv->target_sbc != -1 &&
- pPriv->target_sbc >= pPriv->swap_count) {
+ pPriv->target_sbc <= pPriv->swap_count) {
ProcDRI2WaitMSCReply(client, ((CARD64)tv_sec * 1000000) + tv_usec,
frame, pPriv->swap_count);
pPriv->target_sbc = -1;
AttendClient(pPriv->blockedClient);
pPriv->blockedClient = NULL;
- } else if (pPriv->target_sbc == -1) {
- if (pPriv->blockedClient)
+ } else if (pPriv->target_sbc == -1 && !pPriv->blockedOnMsc) {
+ if (pPriv->blockedClient) {
AttendClient(pPriv->blockedClient);
- pPriv->blockedClient = NULL;
+ pPriv->blockedClient = NULL;
+ }
}
}
@@ -534,21 +565,24 @@ DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw, int frame,
return;
}
- if (pPriv->refCount == 0) {
- xf86DrvMsg(pScreen->myNum, X_ERROR,
- "[DRI2] %s: bad drawable refcount\n", __func__);
- DRI2FreeDrawable(pDraw);
- return;
- }
+ pPriv->swapsPending--;
+ pPriv->swap_count++;
ust = ((CARD64)tv_sec * 1000000) + tv_usec;
if (swap_complete)
swap_complete(client, swap_data, type, ust, frame, pPriv->swap_count);
- pPriv->swapsPending--;
- pPriv->swap_count++;
+ pPriv->last_swap_msc = frame;
+ pPriv->last_swap_ust = ust;
DRI2WakeClient(client, pDraw, frame, tv_sec, tv_usec);
+
+ /*
+ * It's normal for the app to have exited with a swap outstanding, but
+ * don't free the drawable until they're all complete.
+ */
+ if (pPriv->swapsPending == 0 && pPriv->refCount == 0)
+ DRI2FreeDrawable(pDraw);
}
Bool
@@ -563,7 +597,7 @@ DRI2WaitSwap(ClientPtr client, DrawablePtr pDrawable)
pPriv->blockedClient == NULL) {
ResetCurrentRequest(client);
client->sequence--;
- DRI2BlockClient(client, pDrawable);
+ __DRI2BlockClient(client, pPriv);
return TRUE;
}
@@ -579,7 +613,6 @@ DRI2SwapBuffers(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc,
DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen);
DRI2DrawablePtr pPriv;
DRI2BufferPtr pDestBuffer = NULL, pSrcBuffer = NULL;
- CARD64 ust;
int ret, i;
pPriv = DRI2GetDrawable(pDraw);
@@ -601,8 +634,8 @@ DRI2SwapBuffers(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc,
return BadDrawable;
}
- /* Old DDX, just blit */
- if (!ds->ScheduleSwap) {
+ /* Old DDX or no swap interval, just blit */
+ if (!ds->ScheduleSwap || !pPriv->swap_interval) {
BoxRec box;
RegionRec region;
@@ -623,52 +656,52 @@ DRI2SwapBuffers(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc,
/*
* In the simple glXSwapBuffers case, all params will be 0, and we just
* need to schedule a swap for the last swap target + the swap interval.
- * If the last swap target hasn't been set yet, call into the driver
- * to get the current count.
*/
- if (target_msc == 0 && divisor == 0 && remainder == 0 &&
- pPriv->last_swap_target < 0) {
- ret = (*ds->GetMSC)(pDraw, &ust, &target_msc);
- if (!ret) {
- xf86DrvMsg(pScreen->myNum, X_ERROR,
- "[DRI2] %s: driver failed to return current MSC\n",
- __func__);
- return BadDrawable;
- }
+ if (target_msc == 0 && divisor == 0 && remainder == 0) {
+ /*
+ * Swap target for this swap is last swap target + swap interval since
+ * we have to account for the current swap count, interval, and the
+ * number of pending swaps.
+ */
+ *swap_target = pPriv->last_swap_target + pPriv->swap_interval;
+ } else {
+ /* glXSwapBuffersMscOML could have a 0 target_msc, honor it */
+ *swap_target = target_msc;
}
- /* First swap needs to initialize last_swap_target */
- if (pPriv->last_swap_target < 0)
- pPriv->last_swap_target = target_msc;
-
- /*
- * Swap target for this swap is last swap target + swap interval since
- * we have to account for the current swap count, interval, and the
- * number of pending swaps.
- */
- *swap_target = pPriv->last_swap_target + pPriv->swap_interval;
-
+ pPriv->swapsPending++;
ret = (*ds->ScheduleSwap)(client, pDraw, pDestBuffer, pSrcBuffer,
swap_target, divisor, remainder, func, data);
if (!ret) {
+ pPriv->swapsPending--; /* didn't schedule */
xf86DrvMsg(pScreen->myNum, X_ERROR,
"[DRI2] %s: driver failed to schedule swap\n", __func__);
return BadDrawable;
}
- pPriv->swapsPending++;
pPriv->last_swap_target = *swap_target;
+ /* According to spec, return expected swapbuffers count SBC after this swap
+ * will complete.
+ */
+ *swap_target = pPriv->swap_count + pPriv->swapsPending;
+
return Success;
}
void
DRI2SwapInterval(DrawablePtr pDrawable, int interval)
{
+ ScreenPtr pScreen = pDrawable->pScreen;
DRI2DrawablePtr pPriv = DRI2GetDrawable(pDrawable);
- /* fixme: check against arbitrary max? */
+ if (pPriv == NULL) {
+ xf86DrvMsg(pScreen->myNum, X_ERROR,
+ "[DRI2] %s: bad drawable\n", __func__);
+ return;
+ }
+ /* fixme: check against arbitrary max? */
pPriv->swap_interval = interval;
}
@@ -717,7 +750,7 @@ DRI2WaitMSC(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc,
Bool ret;
pPriv = DRI2GetDrawable(pDraw);
- if (pPriv == NULL)
+ if (pPriv == NULL || pPriv->refCount == 0)
return BadDrawable;
/* Old DDX just completes immediately */
@@ -741,14 +774,28 @@ DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, CARD64 target_sbc,
DRI2DrawablePtr pPriv;
pPriv = DRI2GetDrawable(pDraw);
- if (pPriv == NULL)
+ if (pPriv == NULL || pPriv->refCount == 0)
return BadDrawable;
- if (pPriv->swap_count >= target_sbc)
- return Success;
+ /* target_sbc == 0 means to block until all pending swaps are
+ * finished. Recalculate target_sbc to get that behaviour.
+ */
+ if (target_sbc == 0)
+ target_sbc = pPriv->swap_count + pPriv->swapsPending;
+
+ /* If current swap count already >= target_sbc,
+ * return immediately with (ust, msc, sbc) triplet of
+ * most recent completed swap.
+ */
+ if (pPriv->swap_count >= target_sbc) {
+ *sbc = pPriv->swap_count;
+ *msc = pPriv->last_swap_msc;
+ *ust = pPriv->last_swap_ust;
+ return Success;
+ }
pPriv->target_sbc = target_sbc;
- DRI2BlockClient(client, pDraw);
+ __DRI2BlockClient(client, pPriv);
return Success;
}
@@ -776,14 +823,22 @@ DRI2DestroyDrawable(DrawablePtr pDraw)
xfree(pPriv->buffers);
}
- /* If the window is destroyed while we have a swap pending, don't
+ /* If the window is destroyed while we have a swap or wait pending, don't
* actually free the priv yet. We'll need it in the DRI2SwapComplete()
* callback and we'll free it there once we're done. */
- if (!pPriv->swapsPending)
+ if (!pPriv->swapsPending && !pPriv->blockedClient)
DRI2FreeDrawable(pDraw);
}
Bool
+DRI2HasSwapControl(ScreenPtr pScreen)
+{
+ DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
+
+ return (ds->ScheduleSwap && ds->GetMSC);
+}
+
+Bool
DRI2Connect(ScreenPtr pScreen, unsigned int driverType, int *fd,
const char **driverName, const char **deviceName)
{
@@ -820,6 +875,7 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
"VDPAU", /* DRI2DriverVDPAU */
};
unsigned int i;
+ CARD8 cur_minor;
if (info->version < 3)
return FALSE;
@@ -836,6 +892,7 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
ds->fd = info->fd;
ds->deviceName = info->deviceName;
+ dri2_major = 1;
ds->CreateBuffer = info->CreateBuffer;
ds->DestroyBuffer = info->DestroyBuffer;
@@ -845,8 +902,15 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
ds->ScheduleSwap = info->ScheduleSwap;
ds->ScheduleWaitMSC = info->ScheduleWaitMSC;
ds->GetMSC = info->GetMSC;
+ cur_minor = 2;
+ } else {
+ cur_minor = 1;
}
+ /* Initialize minor if needed and set to minimum provied by DDX */
+ if (!dri2_minor || dri2_minor > cur_minor)
+ dri2_minor = cur_minor;
+
if (info->version == 3 || info->numDrivers == 0) {
/* Driver too old: use the old-style driverName field */
ds->numDrivers = 1;
diff --git a/xorg-server/hw/xfree86/dri2/dri2.h b/xorg-server/hw/xfree86/dri2/dri2.h
index cb818f898..ce8a5df41 100644
--- a/xorg-server/hw/xfree86/dri2/dri2.h
+++ b/xorg-server/hw/xfree86/dri2/dri2.h
@@ -1,268 +1,274 @@
-/*
- * Copyright © 2007 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Soft-
- * ware"), to deal in the Software without restriction, including without
- * limitation the rights to use, copy, modify, merge, publish, distribute,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, provided that the above copyright
- * notice(s) and this permission notice appear in all copies of the Soft-
- * ware and that both the above copyright notice(s) and this permission
- * notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
- * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
- * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
- * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
- * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
- * MANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder shall
- * not be used in advertising or otherwise to promote the sale, use or
- * other dealings in this Software without prior written authorization of
- * the copyright holder.
- *
- * Authors:
- * Kristian Høgsberg (krh@redhat.com)
- */
-
-#ifndef _DRI2_H_
-#define _DRI2_H_
-
-#include <X11/extensions/dri2tokens.h>
-
-/* Version 2 structure (with format at the end) */
-typedef struct {
- unsigned int attachment;
- unsigned int name;
- unsigned int pitch;
- unsigned int cpp;
- unsigned int flags;
- unsigned int format;
- void *driverPrivate;
-} DRI2BufferRec, *DRI2BufferPtr;
-
-typedef DRI2BufferRec DRI2Buffer2Rec, *DRI2Buffer2Ptr;
-typedef void (*DRI2SwapEventPtr)(ClientPtr client, void *data, int type,
- CARD64 ust, CARD64 msc, CARD64 sbc);
-
-
-typedef DRI2BufferPtr (*DRI2CreateBuffersProcPtr)(DrawablePtr pDraw,
- unsigned int *attachments,
- int count);
-typedef void (*DRI2DestroyBuffersProcPtr)(DrawablePtr pDraw,
- DRI2BufferPtr buffers,
- int count);
-typedef void (*DRI2CopyRegionProcPtr)(DrawablePtr pDraw,
- RegionPtr pRegion,
- DRI2BufferPtr pDestBuffer,
- DRI2BufferPtr pSrcBuffer);
-typedef void (*DRI2WaitProcPtr)(WindowPtr pWin,
- unsigned int sequence);
-/**
- * Schedule a buffer swap
- *
- * This callback is used to support glXSwapBuffers and the OML_sync_control
- * extension (see it for a description of the params).
- *
- * Drivers should queue an event for the frame count that satisfies the
- * parameters passed in. If the event is in the future (i.e. the conditions
- * aren't currently satisfied), the server may block the client at the next
- * GLX request using DRI2WaitSwap. When the event arrives, drivers should call
- * \c DRI2SwapComplete, which will handle waking the client and returning
- * the appropriate data.
- *
- * The DDX is responsible for doing a flip, exchange, or blit of the swap
- * when the corresponding event arrives. The \c DRI2CanFlip and
- * \c DRI2CanExchange functions can be used as helpers for this purpose.
- *
- * \param client client pointer (used for block/unblock)
- * \param pDraw drawable whose count we want
- * \param pDestBuffer current front buffer
- * \param pSrcBuffer current back buffer
- * \param target_msc frame count to wait for
- * \param divisor divisor for condition equation
- * \param remainder remainder for division equation
- * \param func function to call when the swap completes
- * \param data data for the callback \p func.
- */
-typedef int (*DRI2ScheduleSwapProcPtr)(ClientPtr client,
- DrawablePtr pDraw,
- DRI2BufferPtr pDestBuffer,
- DRI2BufferPtr pSrcBuffer,
- CARD64 *target_msc,
- CARD64 divisor,
- CARD64 remainder,
- DRI2SwapEventPtr func,
- void *data);
-typedef DRI2BufferPtr (*DRI2CreateBufferProcPtr)(DrawablePtr pDraw,
- unsigned int attachment,
- unsigned int format);
-typedef void (*DRI2DestroyBufferProcPtr)(DrawablePtr pDraw,
- DRI2BufferPtr buffer);
-/**
- * Get current media stamp counter values
- *
- * This callback is used to support the SGI_video_sync and OML_sync_control
- * extensions.
- *
- * Drivers should return the current frame counter and the timestamp from
- * when the returned frame count was last incremented.
- *
- * The count should correspond to the screen where the drawable is currently
- * visible. If the drawable isn't visible (e.g. redirected), the server
- * should return BadDrawable to the client, pending GLX spec updates to
- * define this behavior.
- *
- * \param pDraw drawable whose count we want
- * \param ust timestamp from when the count was last incremented.
- * \param mst current frame count
- */
-typedef int (*DRI2GetMSCProcPtr)(DrawablePtr pDraw, CARD64 *ust,
- CARD64 *msc);
-/**
- * Schedule a frame count related wait
- *
- * This callback is used to support the SGI_video_sync and OML_sync_control
- * extensions. See those specifications for details on how to handle
- * the divisor and remainder parameters.
- *
- * Drivers should queue an event for the frame count that satisfies the
- * parameters passed in. If the event is in the future (i.e. the conditions
- * aren't currently satisfied), the driver should block the client using
- * \c DRI2BlockClient. When the event arrives, drivers should call
- * \c DRI2WaitMSCComplete, which will handle waking the client and returning
- * the appropriate data.
- *
- * \param client client pointer (used for block/unblock)
- * \param pDraw drawable whose count we want
- * \param target_msc frame count to wait for
- * \param divisor divisor for condition equation
- * \param remainder remainder for division equation
- */
-typedef int (*DRI2ScheduleWaitMSCProcPtr)(ClientPtr client,
- DrawablePtr pDraw,
- CARD64 target_msc,
- CARD64 divisor,
- CARD64 remainder);
-/**
- * Version of the DRI2InfoRec structure defined in this header
- */
-#define DRI2INFOREC_VERSION 4
-
-typedef struct {
- unsigned int version; /**< Version of this struct */
- int fd;
- const char *driverName;
- const char *deviceName;
-
- DRI2CreateBufferProcPtr CreateBuffer;
- DRI2DestroyBufferProcPtr DestroyBuffer;
- DRI2CopyRegionProcPtr CopyRegion;
- DRI2WaitProcPtr Wait;
-
- /* added in version 4 */
-
- DRI2ScheduleSwapProcPtr ScheduleSwap;
- DRI2GetMSCProcPtr GetMSC;
- DRI2ScheduleWaitMSCProcPtr ScheduleWaitMSC;
-
- /* number of drivers in the driverNames array */
- unsigned int numDrivers;
- /* array of driver names, indexed by DRI2Driver* driver types */
- /* a name of NULL means that driver is not supported */
- const char * const *driverNames;
-} DRI2InfoRec, *DRI2InfoPtr;
-
-extern _X_EXPORT int DRI2EventBase;
-
-extern _X_EXPORT Bool DRI2ScreenInit(ScreenPtr pScreen,
- DRI2InfoPtr info);
-
-extern _X_EXPORT void DRI2CloseScreen(ScreenPtr pScreen);
-
-extern _X_EXPORT Bool DRI2Connect(ScreenPtr pScreen,
- unsigned int driverType,
- int *fd,
- const char **driverName,
- const char **deviceName);
-
-extern _X_EXPORT Bool DRI2Authenticate(ScreenPtr pScreen, drm_magic_t magic);
-
-extern _X_EXPORT int DRI2CreateDrawable(DrawablePtr pDraw);
-
-extern _X_EXPORT void DRI2DestroyDrawable(DrawablePtr pDraw);
-
-extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffers(DrawablePtr pDraw,
- int *width,
- int *height,
- unsigned int *attachments,
- int count,
- int *out_count);
-
-extern _X_EXPORT int DRI2CopyRegion(DrawablePtr pDraw,
- RegionPtr pRegion,
- unsigned int dest,
- unsigned int src);
-
-/**
- * Determine the major and minor version of the DRI2 extension.
- *
- * Provides a mechanism to other modules (e.g., 2D drivers) to determine the
- * version of the DRI2 extension. While it is possible to peek directly at
- * the \c XF86ModuleData from a layered module, such a module will fail to
- * load (due to an unresolved symbol) if the DRI2 extension is not loaded.
- *
- * \param major Location to store the major verion of the DRI2 extension
- * \param minor Location to store the minor verion of the DRI2 extension
- *
- * \note
- * This interface was added some time after the initial release of the DRI2
- * module. Layered modules that wish to use this interface must first test
- * its existance by calling \c xf86LoaderCheckSymbol.
- */
-extern _X_EXPORT void DRI2Version(int *major, int *minor);
-
-extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffersWithFormat(DrawablePtr pDraw,
- int *width, int *height, unsigned int *attachments, int count,
- int *out_count);
-
-extern _X_EXPORT void DRI2SwapInterval(DrawablePtr pDrawable, int interval);
-extern _X_EXPORT int DRI2SwapBuffers(ClientPtr client, DrawablePtr pDrawable,
- CARD64 target_msc, CARD64 divisor,
- CARD64 remainder, CARD64 *swap_target,
- DRI2SwapEventPtr func, void *data);
-extern _X_EXPORT Bool DRI2WaitSwap(ClientPtr client, DrawablePtr pDrawable);
-
-extern _X_EXPORT int DRI2GetMSC(DrawablePtr pDrawable, CARD64 *ust,
- CARD64 *msc, CARD64 *sbc);
-extern _X_EXPORT int DRI2WaitMSC(ClientPtr client, DrawablePtr pDrawable,
- CARD64 target_msc, CARD64 divisor,
- CARD64 remainder);
-extern _X_EXPORT int ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust,
- CARD64 msc, CARD64 sbc);
-extern _X_EXPORT int DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw,
- CARD64 target_sbc, CARD64 *ust, CARD64 *msc,
- CARD64 *sbc);
-extern _X_EXPORT Bool DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw);
-
-extern _X_EXPORT Bool DRI2CanFlip(DrawablePtr pDraw);
-
-extern _X_EXPORT Bool DRI2CanExchange(DrawablePtr pDraw);
-
-extern _X_EXPORT void DRI2BlockClient(ClientPtr client, DrawablePtr pDraw);
-
-extern _X_EXPORT void DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw,
- int frame, unsigned int tv_sec,
- unsigned int tv_usec, int type,
- DRI2SwapEventPtr swap_complete,
- void *swap_data);
-extern _X_EXPORT void DRI2WaitMSCComplete(ClientPtr client, DrawablePtr pDraw,
- int frame, unsigned int tv_sec,
- unsigned int tv_usec);
-
-#endif
+/*
+ * Copyright © 2007 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Soft-
+ * ware"), to deal in the Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge, publish, distribute,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, provided that the above copyright
+ * notice(s) and this permission notice appear in all copies of the Soft-
+ * ware and that both the above copyright notice(s) and this permission
+ * notice appear in supporting documentation.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+ * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
+ * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
+ * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
+ * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
+ * MANCE OF THIS SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization of
+ * the copyright holder.
+ *
+ * Authors:
+ * Kristian Høgsberg (krh@redhat.com)
+ */
+
+#ifndef _DRI2_H_
+#define _DRI2_H_
+
+#include <X11/extensions/dri2tokens.h>
+
+/* Version 2 structure (with format at the end) */
+typedef struct {
+ unsigned int attachment;
+ unsigned int name;
+ unsigned int pitch;
+ unsigned int cpp;
+ unsigned int flags;
+ unsigned int format;
+ void *driverPrivate;
+} DRI2BufferRec, *DRI2BufferPtr;
+
+extern CARD8 dri2_major; /* version of DRI2 supported by DDX */
+extern CARD8 dri2_minor;
+
+typedef DRI2BufferRec DRI2Buffer2Rec, *DRI2Buffer2Ptr;
+typedef void (*DRI2SwapEventPtr)(ClientPtr client, void *data, int type,
+ CARD64 ust, CARD64 msc, CARD64 sbc);
+
+
+typedef DRI2BufferPtr (*DRI2CreateBuffersProcPtr)(DrawablePtr pDraw,
+ unsigned int *attachments,
+ int count);
+typedef void (*DRI2DestroyBuffersProcPtr)(DrawablePtr pDraw,
+ DRI2BufferPtr buffers,
+ int count);
+typedef void (*DRI2CopyRegionProcPtr)(DrawablePtr pDraw,
+ RegionPtr pRegion,
+ DRI2BufferPtr pDestBuffer,
+ DRI2BufferPtr pSrcBuffer);
+typedef void (*DRI2WaitProcPtr)(WindowPtr pWin,
+ unsigned int sequence);
+/**
+ * Schedule a buffer swap
+ *
+ * This callback is used to support glXSwapBuffers and the OML_sync_control
+ * extension (see it for a description of the params).
+ *
+ * Drivers should queue an event for the frame count that satisfies the
+ * parameters passed in. If the event is in the future (i.e. the conditions
+ * aren't currently satisfied), the server may block the client at the next
+ * GLX request using DRI2WaitSwap. When the event arrives, drivers should call
+ * \c DRI2SwapComplete, which will handle waking the client and returning
+ * the appropriate data.
+ *
+ * The DDX is responsible for doing a flip, exchange, or blit of the swap
+ * when the corresponding event arrives. The \c DRI2CanFlip and
+ * \c DRI2CanExchange functions can be used as helpers for this purpose.
+ *
+ * \param client client pointer (used for block/unblock)
+ * \param pDraw drawable whose count we want
+ * \param pDestBuffer current front buffer
+ * \param pSrcBuffer current back buffer
+ * \param target_msc frame count to wait for
+ * \param divisor divisor for condition equation
+ * \param remainder remainder for division equation
+ * \param func function to call when the swap completes
+ * \param data data for the callback \p func.
+ */
+typedef int (*DRI2ScheduleSwapProcPtr)(ClientPtr client,
+ DrawablePtr pDraw,
+ DRI2BufferPtr pDestBuffer,
+ DRI2BufferPtr pSrcBuffer,
+ CARD64 *target_msc,
+ CARD64 divisor,
+ CARD64 remainder,
+ DRI2SwapEventPtr func,
+ void *data);
+typedef DRI2BufferPtr (*DRI2CreateBufferProcPtr)(DrawablePtr pDraw,
+ unsigned int attachment,
+ unsigned int format);
+typedef void (*DRI2DestroyBufferProcPtr)(DrawablePtr pDraw,
+ DRI2BufferPtr buffer);
+/**
+ * Get current media stamp counter values
+ *
+ * This callback is used to support the SGI_video_sync and OML_sync_control
+ * extensions.
+ *
+ * Drivers should return the current frame counter and the timestamp from
+ * when the returned frame count was last incremented.
+ *
+ * The count should correspond to the screen where the drawable is currently
+ * visible. If the drawable isn't visible (e.g. redirected), the server
+ * should return BadDrawable to the client, pending GLX spec updates to
+ * define this behavior.
+ *
+ * \param pDraw drawable whose count we want
+ * \param ust timestamp from when the count was last incremented.
+ * \param mst current frame count
+ */
+typedef int (*DRI2GetMSCProcPtr)(DrawablePtr pDraw, CARD64 *ust,
+ CARD64 *msc);
+/**
+ * Schedule a frame count related wait
+ *
+ * This callback is used to support the SGI_video_sync and OML_sync_control
+ * extensions. See those specifications for details on how to handle
+ * the divisor and remainder parameters.
+ *
+ * Drivers should queue an event for the frame count that satisfies the
+ * parameters passed in. If the event is in the future (i.e. the conditions
+ * aren't currently satisfied), the driver should block the client using
+ * \c DRI2BlockClient. When the event arrives, drivers should call
+ * \c DRI2WaitMSCComplete, which will handle waking the client and returning
+ * the appropriate data.
+ *
+ * \param client client pointer (used for block/unblock)
+ * \param pDraw drawable whose count we want
+ * \param target_msc frame count to wait for
+ * \param divisor divisor for condition equation
+ * \param remainder remainder for division equation
+ */
+typedef int (*DRI2ScheduleWaitMSCProcPtr)(ClientPtr client,
+ DrawablePtr pDraw,
+ CARD64 target_msc,
+ CARD64 divisor,
+ CARD64 remainder);
+/**
+ * Version of the DRI2InfoRec structure defined in this header
+ */
+#define DRI2INFOREC_VERSION 4
+
+typedef struct {
+ unsigned int version; /**< Version of this struct */
+ int fd;
+ const char *driverName;
+ const char *deviceName;
+
+ DRI2CreateBufferProcPtr CreateBuffer;
+ DRI2DestroyBufferProcPtr DestroyBuffer;
+ DRI2CopyRegionProcPtr CopyRegion;
+ DRI2WaitProcPtr Wait;
+
+ /* added in version 4 */
+
+ DRI2ScheduleSwapProcPtr ScheduleSwap;
+ DRI2GetMSCProcPtr GetMSC;
+ DRI2ScheduleWaitMSCProcPtr ScheduleWaitMSC;
+
+ /* number of drivers in the driverNames array */
+ unsigned int numDrivers;
+ /* array of driver names, indexed by DRI2Driver* driver types */
+ /* a name of NULL means that driver is not supported */
+ const char * const *driverNames;
+} DRI2InfoRec, *DRI2InfoPtr;
+
+extern _X_EXPORT int DRI2EventBase;
+
+extern _X_EXPORT Bool DRI2ScreenInit(ScreenPtr pScreen,
+ DRI2InfoPtr info);
+
+extern _X_EXPORT void DRI2CloseScreen(ScreenPtr pScreen);
+
+extern _X_EXPORT Bool DRI2HasSwapControl(ScreenPtr pScreen);
+
+extern _X_EXPORT Bool DRI2Connect(ScreenPtr pScreen,
+ unsigned int driverType,
+ int *fd,
+ const char **driverName,
+ const char **deviceName);
+
+extern _X_EXPORT Bool DRI2Authenticate(ScreenPtr pScreen, drm_magic_t magic);
+
+extern _X_EXPORT int DRI2CreateDrawable(DrawablePtr pDraw);
+
+extern _X_EXPORT void DRI2DestroyDrawable(DrawablePtr pDraw);
+
+extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffers(DrawablePtr pDraw,
+ int *width,
+ int *height,
+ unsigned int *attachments,
+ int count,
+ int *out_count);
+
+extern _X_EXPORT int DRI2CopyRegion(DrawablePtr pDraw,
+ RegionPtr pRegion,
+ unsigned int dest,
+ unsigned int src);
+
+/**
+ * Determine the major and minor version of the DRI2 extension.
+ *
+ * Provides a mechanism to other modules (e.g., 2D drivers) to determine the
+ * version of the DRI2 extension. While it is possible to peek directly at
+ * the \c XF86ModuleData from a layered module, such a module will fail to
+ * load (due to an unresolved symbol) if the DRI2 extension is not loaded.
+ *
+ * \param major Location to store the major verion of the DRI2 extension
+ * \param minor Location to store the minor verion of the DRI2 extension
+ *
+ * \note
+ * This interface was added some time after the initial release of the DRI2
+ * module. Layered modules that wish to use this interface must first test
+ * its existance by calling \c xf86LoaderCheckSymbol.
+ */
+extern _X_EXPORT void DRI2Version(int *major, int *minor);
+
+extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffersWithFormat(DrawablePtr pDraw,
+ int *width, int *height, unsigned int *attachments, int count,
+ int *out_count);
+
+extern _X_EXPORT void DRI2SwapInterval(DrawablePtr pDrawable, int interval);
+extern _X_EXPORT int DRI2SwapBuffers(ClientPtr client, DrawablePtr pDrawable,
+ CARD64 target_msc, CARD64 divisor,
+ CARD64 remainder, CARD64 *swap_target,
+ DRI2SwapEventPtr func, void *data);
+extern _X_EXPORT Bool DRI2WaitSwap(ClientPtr client, DrawablePtr pDrawable);
+
+extern _X_EXPORT int DRI2GetMSC(DrawablePtr pDrawable, CARD64 *ust,
+ CARD64 *msc, CARD64 *sbc);
+extern _X_EXPORT int DRI2WaitMSC(ClientPtr client, DrawablePtr pDrawable,
+ CARD64 target_msc, CARD64 divisor,
+ CARD64 remainder);
+extern _X_EXPORT int ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust,
+ CARD64 msc, CARD64 sbc);
+extern _X_EXPORT int DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw,
+ CARD64 target_sbc, CARD64 *ust, CARD64 *msc,
+ CARD64 *sbc);
+extern _X_EXPORT Bool DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw);
+
+extern _X_EXPORT Bool DRI2CanFlip(DrawablePtr pDraw);
+
+extern _X_EXPORT Bool DRI2CanExchange(DrawablePtr pDraw);
+
+/* Note: use *only* for MSC related waits */
+extern _X_EXPORT void DRI2BlockClient(ClientPtr client, DrawablePtr pDraw);
+
+extern _X_EXPORT void DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw,
+ int frame, unsigned int tv_sec,
+ unsigned int tv_usec, int type,
+ DRI2SwapEventPtr swap_complete,
+ void *swap_data);
+extern _X_EXPORT void DRI2WaitMSCComplete(ClientPtr client, DrawablePtr pDraw,
+ int frame, unsigned int tv_sec,
+ unsigned int tv_usec);
+
+#endif
diff --git a/xorg-server/hw/xfree86/dri2/dri2ext.c b/xorg-server/hw/xfree86/dri2/dri2ext.c
index bd92fd304..094d54dc0 100644
--- a/xorg-server/hw/xfree86/dri2/dri2ext.c
+++ b/xorg-server/hw/xfree86/dri2/dri2ext.c
@@ -80,8 +80,8 @@ ProcDRI2QueryVersion(ClientPtr client)
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
- rep.majorVersion = SERVER_DRI2_MAJOR_VERSION;
- rep.minorVersion = SERVER_DRI2_MINOR_VERSION;
+ rep.majorVersion = dri2_major;
+ rep.minorVersion = dri2_minor;
if (client->swapped) {
swaps(&rep.sequenceNumber, n);
@@ -384,6 +384,13 @@ ProcDRI2SwapBuffers(ClientPtr client)
DixReadAccess | DixWriteAccess, &pDrawable, &status))
return status;
+ /*
+ * Ensures an out of control client can't exhaust our swap queue, and
+ * also orders swaps.
+ */
+ if (DRI2ThrottleClient(client, pDrawable))
+ return client->noClientException;
+
target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi);
divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi);
remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);