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Merge remote branch 'jbarnes/master'

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This commit is contained in:
Keith Packard 2010-04-06 12:36:15 -07:00
commit a7698a6776
5 changed files with 143 additions and 75 deletions
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23
glx/glxdri2.c
View File

@ -616,6 +616,7 @@ glxDRILeaveVT (int index, int flags)
static void
initializeExtensions(__GLXDRIscreen *screen)
{
ScreenPtr pScreen = screen->base.pScreen;
const __DRIextension **extensions;
int i;
@ -625,10 +626,17 @@ initializeExtensions(__GLXDRIscreen *screen)
"GLX_MESA_copy_sub_buffer");
LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
/* FIXME: only if DDX supports it */
__glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event");
LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n");
if (DRI2HasSwapControl(pScreen)) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_SGI_swap_control");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_MESA_swap_control");
LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n");
}
for (i = 0; extensions[i]; i++) {
#ifdef __DRI_READ_DRAWABLE
if (strcmp(extensions[i]->name, __DRI_READ_DRAWABLE) == 0) {
@ -639,19 +647,6 @@ initializeExtensions(__GLXDRIscreen *screen)
}
#endif
#ifdef __DRI_SWAP_CONTROL
if (strcmp(extensions[i]->name, __DRI_SWAP_CONTROL) == 0) {
screen->swapControl =
(const __DRIswapControlExtension *) extensions[i];
__glXEnableExtension(screen->glx_enable_bits,
"GLX_SGI_swap_control");
__glXEnableExtension(screen->glx_enable_bits,
"GLX_MESA_swap_control");
LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n");
}
#endif
#ifdef __DRI_TEX_BUFFER
if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
screen->texBuffer =

174
hw/xfree86/dri2/dri2.c
View File

@ -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;
}
@ -776,13 +823,21 @@ 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;

6
hw/xfree86/dri2/dri2.h
View File

@ -46,6 +46,9 @@ typedef struct {
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);
@ -185,6 +188,8 @@ extern _X_EXPORT Bool DRI2ScreenInit(ScreenPtr pScreen,
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,
@ -254,6 +259,7 @@ 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,

11
hw/xfree86/dri2/dri2ext.c
View File

@ -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);

4
include/protocol-versions.h
View File

@ -51,10 +51,6 @@
#define SERVER_DMX_MINOR_VERSION 2
#define SERVER_DMX_PATCH_VERSION 20040604
/* DRI2 */
#define SERVER_DRI2_MAJOR_VERSION 1
#define SERVER_DRI2_MINOR_VERSION 2
/* Generic event extension */
#define SERVER_GE_MAJOR_VERSION 1
#define SERVER_GE_MINOR_VERSION 0