diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2008-07-16 03:14:06 -0400 |
|---|---|---|
| committer | Pierre Ossman <pierre@ossman.eu> | 2008-12-04 21:49:52 +0100 |
| commit | 4d98acbca2e630056bf56cdcd0e23007fded2ced (patch) | |
| tree | a574724160c84f68601072fb25e7507653da3ce6 /src/radeon_commonfuncs.c | |
| parent | 82d67b70d0fb747cf7b1eb0b64244ae56cb84572 (diff) | |
First pass at tear-free accel
if the dest pixmap is the front buffer, stall the pipe
until the vline is outside the active area.
For EXA, pick crtc based on the larger mode area;
ideally we'd have one pixmap per crtc.
For Xv, use dst window area to determine crtc.
Diffstat (limited to 'src/radeon_commonfuncs.c')
| -rw-r--r-- | src/radeon_commonfuncs.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/radeon_commonfuncs.c b/src/radeon_commonfuncs.c index c7d42bce..556dba3f 100644 --- a/src/radeon_commonfuncs.c +++ b/src/radeon_commonfuncs.c @@ -632,6 +632,39 @@ static void FUNC_NAME(RADEONInit3DEngine)(ScrnInfoPtr pScrn) } +/* inserts a wait for vline in the command stream */ +void FUNC_NAME(RADEONWaitForVLine)(ScrnInfoPtr pScrn, PixmapPtr pPix, int crtc) +{ + RADEONInfoPtr info = RADEONPTR(pScrn); + xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn); + uint32_t offset; + ACCEL_PREAMBLE(); + + if ((crtc < 0) || (crtc > 1)) + return; + + if (!xf86_config->crtc[crtc]->enabled) + return; + +#ifdef USE_EXA + if (info->useEXA) + offset = exaGetPixmapOffset(pPix); + else +#endif + offset = pPix->devPrivate.ptr - info->FB; + + /* if drawing to front buffer */ + if (offset == 0) { + BEGIN_ACCEL(1); + if (crtc == 0) + OUT_ACCEL_REG(RADEON_WAIT_UNTIL, (RADEON_WAIT_FE_CRTC_VLINE | + RADEON_ENG_DISPLAY_SELECT_CRTC0)); + else + OUT_ACCEL_REG(RADEON_WAIT_UNTIL, (RADEON_WAIT_FE_CRTC_VLINE | + RADEON_ENG_DISPLAY_SELECT_CRTC1)); + FINISH_ACCEL(); + } +} /* MMIO: * |