diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-23 15:05:03 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-23 15:05:03 -0700 |
| commit | 1eec83a203c48822400742a1fb184b2cb52c62f7 (patch) | |
| tree | 9a93f0502bd5eca85758fcee995360e99ec8a93e /src/i830_driver.c | |
| parent | bfeeac6de096256fca82244338bb45d53ee53cbc (diff) | |
Add option to control swapbuffers behavior
Until we get triple buffering, we'll want this so users can avoid taking a
performance hit on apps that render slower than the refresh rate.
Fixes fdo bug #22234.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'src/i830_driver.c')
| -rw-r--r-- | src/i830_driver.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/i830_driver.c b/src/i830_driver.c index 9d38fba1..70b87887 100644 --- a/src/i830_driver.c +++ b/src/i830_driver.c @@ -171,6 +171,7 @@ typedef enum { OPTION_LVDS24BITMODE, OPTION_FBC, OPTION_TILING, + OPTION_SWAPBUFFERS_WAIT, OPTION_LVDSFIXEDMODE, OPTION_FORCEENABLEPIPEA, #ifdef INTEL_XVMC @@ -189,6 +190,7 @@ static OptionInfoRec I830Options[] = { {OPTION_LVDS24BITMODE, "LVDS24Bit", OPTV_BOOLEAN, {0}, FALSE}, {OPTION_FBC, "FramebufferCompression", OPTV_BOOLEAN, {0}, TRUE}, {OPTION_TILING, "Tiling", OPTV_BOOLEAN, {0}, TRUE}, + {OPTION_SWAPBUFFERS_WAIT, "SwapbuffersWait", OPTV_BOOLEAN, {0}, TRUE}, {OPTION_LVDSFIXEDMODE, "LVDSFixedMode", OPTV_BOOLEAN, {0}, FALSE}, {OPTION_FORCEENABLEPIPEA, "ForceEnablePipeA", OPTV_BOOLEAN, {0}, FALSE}, #ifdef INTEL_XVMC @@ -2663,10 +2665,23 @@ I830ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv) pI830->fb_compression = FALSE; } + /* SwapBuffers delays to avoid tearing */ + pI830->swapbuffers_wait = TRUE; + + /* Allow user override if they set a value */ + if (xf86IsOptionSet(pI830->Options, OPTION_SWAPBUFFERS_WAIT)) { + if (xf86ReturnOptValBool(pI830->Options, OPTION_SWAPBUFFERS_WAIT, FALSE)) + pI830->swapbuffers_wait = TRUE; + else + pI830->swapbuffers_wait = FALSE; + } + xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Framebuffer compression %sabled\n", pI830->fb_compression ? "en" : "dis"); xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Tiling %sabled\n", pI830->tiling ? "en" : "dis"); + xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "SwapBuffers wait %sabled\n", + pI830->swapbuffers_wait ? "en" : "dis"); pI830->last_3d = LAST_3D_OTHER; pI830->overlayOn = FALSE; |