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-rw-r--r--src/i830_dri.c232
1 files changed, 228 insertions, 4 deletions
diff --git a/src/i830_dri.c b/src/i830_dri.c
index b34b9b76..b4b6be61 100644
--- a/src/i830_dri.c
+++ b/src/i830_dri.c
@@ -273,6 +273,29 @@ I830DRI2DestroyBuffer(DrawablePtr pDraw, DRI2Buffer2Ptr buffer)
#endif
+static int
+I830DRI2DrawablePipe(DrawablePtr pDraw)
+{
+ ScreenPtr pScreen = pDraw->pScreen;
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ BoxRec box, crtcbox;
+ xf86CrtcPtr crtc;
+ int pipe = -1;
+
+ box.x1 = pDraw->x;
+ box.y1 = pDraw->y;
+ box.x2 = box.x1 + pDraw->width;
+ box.y2 = box.y1 + pDraw->height;
+
+ crtc = i830_covering_crtc(pScrn, &box, NULL, &crtcbox);
+
+ /* Make sure the CRTC is valid and this is the real front buffer */
+ if (crtc != NULL && !crtc->rotatedData)
+ pipe = i830_crtc_to_pipe(crtc);
+
+ return pipe;
+}
+
static void
I830DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
DRI2BufferPtr pDstBuffer, DRI2BufferPtr pSrcBuffer)
@@ -359,6 +382,86 @@ I830DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
#if DRI2INFOREC_VERSION >= 4
/*
+ * Request a DRM event when the requested conditions will be satisfied.
+ * Event will be handled by the server and wake up any clients waiting
+ * on the specified frame count.
+ */
+static int
+I830DRI2SetupSwap(DrawablePtr pDraw, CARD64 target_msc, CARD64 divisor,
+ CARD64 remainder, void *data, CARD64 *event_frame)
+{
+ ScreenPtr pScreen = pDraw->pScreen;
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ I830Ptr pI830 = I830PTR(pScrn);
+ drmVBlank vbl;
+ int ret, pipe = I830DRI2DrawablePipe(pDraw);
+
+ /* Get current count */
+ vbl.request.type = DRM_VBLANK_RELATIVE;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+ vbl.request.sequence = 0;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+
+ /*
+ * If divisor is zero, we just need to make sure target_msc passes
+ * before waking up the client.
+ */
+ if (divisor == 0) {
+ vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+ vbl.request.sequence = target_msc;
+ vbl.request.signal = (unsigned long)data;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ /*
+ * If we get here, target_msc has already passed or we don't have one,
+ * so we queue an event that will satisfy the divisor/remainder equation.
+ */
+ if ((vbl.reply.sequence % divisor) == remainder)
+ return FALSE;
+
+ vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+
+ /*
+ * If we have no remainder, and the test above failed, it means we've
+ * passed the last point where seq % divisor == remainder, so we need
+ * to wait for the next time that will happen.
+ */
+ if (!remainder)
+ vbl.request.sequence += divisor;
+
+ vbl.request.sequence = vbl.reply.sequence - (vbl.reply.sequence % divisor) +
+ remainder;
+ vbl.request.signal = (unsigned long)data;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+
+ *event_frame = vbl.reply.sequence;
+
+ return TRUE;
+}
+
+/*
* DRI2SwapBuffers should try to do a buffer swap if possible, however:
* - if we're swapping buffers smaller than the screen, we have to blit
* - if the back buffer doesn't match the screen depth, we have to blit
@@ -366,10 +469,9 @@ I830DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion,
* and back buffers
*/
static Bool
-I830DRI2SwapBuffers(DrawablePtr pDraw,
+I830DRI2SwapBuffers(ScreenPtr pScreen,
DRI2BufferPtr front, DRI2BufferPtr back, void *data)
{
- ScreenPtr pScreen = pDraw->pScreen;
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
I830Ptr pI830 = I830PTR(pScrn);
I830DRI2BufferPrivatePtr front_priv, back_priv;
@@ -399,9 +501,125 @@ I830DRI2SwapBuffers(DrawablePtr pDraw,
FatalError("swapbuffers with bad front\n");
/* Page flip the full screen buffer */
- return drmmode_do_pageflip(pDraw, i830_get_pixmap_bo(front_priv->pPixmap),
+ return drmmode_do_pageflip(pScreen, i830_get_pixmap_bo(front_priv->pPixmap),
i830_get_pixmap_bo(back_priv->pPixmap), data);
}
+
+/*
+ * Get current frame count and frame count timestamp, based on drawable's
+ * crtc.
+ */
+static int
+I830DRI2GetMSC(DrawablePtr pDraw, CARD64 *ust, CARD64 *msc)
+{
+ ScreenPtr pScreen = pDraw->pScreen;
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ I830Ptr pI830 = I830PTR(pScrn);
+ drmVBlank vbl;
+ int ret, pipe = I830DRI2DrawablePipe(pDraw);
+
+ /* FIXME: we shouldn't be called if the window isn't mapped or is
+ redirected */
+ if (pipe < 0) {
+ *ust = 0;
+ *msc = 0;
+ return TRUE;
+ }
+
+ vbl.request.type = DRM_VBLANK_RELATIVE;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+ vbl.request.sequence = 0;
+
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+
+ *ust = ((CARD64)vbl.reply.tval_sec * 1000000) + vbl.reply.tval_usec;
+ *msc = vbl.reply.sequence;
+
+ return TRUE;
+}
+
+/*
+ * Request a DRM event when the requested conditions will be satisfied.
+ * Event will be handled by the server and wake up any clients waiting
+ * on the specified frame count.
+ */
+static int
+I830DRI2SetupWaitMSC(DrawablePtr pDraw, CARD64 target_msc, CARD64 divisor,
+ CARD64 remainder, void *data, CARD64 *event_frame)
+{
+ ScreenPtr pScreen = pDraw->pScreen;
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ I830Ptr pI830 = I830PTR(pScrn);
+ drmVBlank vbl;
+ int ret, pipe = I830DRI2DrawablePipe(pDraw);
+
+ /* Get current count */
+ vbl.request.type = DRM_VBLANK_RELATIVE;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+ vbl.request.sequence = 0;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+
+ /*
+ * If divisor is zero, we just need to make sure target_msc passes
+ * before waking up the client.
+ */
+ if (divisor == 0) {
+ vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+ vbl.request.sequence = target_msc;
+ vbl.request.signal = (unsigned long)data;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+ return TRUE;
+ }
+
+ /*
+ * If we get here, target_msc has already passed or we don't have one,
+ * so we queue an event that will satisfy the divisor/remainder equation.
+ */
+ vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
+ if (pipe > 0)
+ vbl.request.type |= DRM_VBLANK_SECONDARY;
+
+ /*
+ * If we have no remainder and the condition isn't satisified, it means
+ * we've passed the last point where seq % divisor == remainder, so we need
+ * to wait for the next time that will happen.
+ */
+ if (((vbl.reply.sequence % divisor) != remainder) && !remainder)
+ vbl.request.sequence += divisor;
+
+ vbl.request.sequence = vbl.reply.sequence - (vbl.reply.sequence % divisor) +
+ remainder;
+ vbl.request.signal = (unsigned long)data;
+ ret = drmWaitVBlank(pI830->drmSubFD, &vbl);
+ if (ret) {
+ xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+ "get vblank counter failed: %s\n", strerror(errno));
+ return FALSE;
+ }
+
+ *event_frame = vbl.reply.sequence;
+
+ return TRUE;
+}
#endif
Bool I830DRI2ScreenInit(ScreenPtr pScreen)
@@ -474,10 +692,16 @@ Bool I830DRI2ScreenInit(ScreenPtr pScreen)
#endif
#if DRI2INFOREC_VERSION >= 4
+ info.version = 4;
+ info.SetupSwap = I830DRI2SetupSwap;
if (pI830->use_swap_buffers) {
- info.version = 4;
info.SwapBuffers = I830DRI2SwapBuffers;
+ } else {
+ info.SwapBuffers = NULL;
}
+
+ info.GetMSC = I830DRI2GetMSC;
+ info.SetupWaitMSC = I830DRI2SetupWaitMSC;
#endif
info.CopyRegion = I830DRI2CopyRegion;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-30 15:11:47 +0000