diff options
| author | Mario Kleiner <mario.kleiner@tuebingen.mpg.de> | 2010-11-22 04:11:07 +0100 |
|---|---|---|
| committer | Alex Deucher <alexdeucher@gmail.com> | 2010-12-01 20:30:36 -0500 |
| commit | 122536ee0aeb1eef1a9d80d5e464dcb423dc2837 (patch) | |
| tree | 23da02481fa061939261b30f42a8a4f4eb35444f /src/radeon_kms.c | |
| parent | 0de680730294bd623f6b3e189faa7b88a09d3a2a (diff) | |
ddx/ati: Add option "SwapbuffersWait" to control vsync of DRI2 swaps.
A new optional kms driver option "SwapbuffersWait" is defined
for xorg.conf, which defaults to "on". If "on", DRI2 bufferswaps
will be synchronized to vsync, otherwise not.
This currently only affects copy-swaps, not pageflipped swaps.
It also requires a swap_interval setting of zero by the OpenGL
client.
Ideally, we'd provide a way for dri2 to pass the current swap
interval to the ddx so we could change this dynamically.
Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Diffstat (limited to 'src/radeon_kms.c')
| -rw-r--r-- | src/radeon_kms.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/radeon_kms.c b/src/radeon_kms.c index 38467c07..59f82818 100644 --- a/src/radeon_kms.c +++ b/src/radeon_kms.c @@ -71,6 +71,7 @@ const OptionInfoRec RADEONOptions_KMS[] = { { OPTION_EXA_PIXMAPS, "EXAPixmaps", OPTV_BOOLEAN, {0}, FALSE }, { OPTION_ZAPHOD_HEADS, "ZaphodHeads", OPTV_STRING, {0}, FALSE }, { OPTION_PAGE_FLIP, "EnablePageFlip", OPTV_BOOLEAN, {0}, FALSE }, + { OPTION_SWAPBUFFERS_WAIT,"SwapbuffersWait", OPTV_BOOLEAN, {0}, FALSE }, { -1, NULL, OPTV_NONE, {0}, FALSE } }; @@ -628,6 +629,11 @@ Bool RADEONPreInit_KMS(ScrnInfoPtr pScrn, int flags) "KMS Pageflipping: %sabled\n", info->allowPageFlip ? "en" : "dis"); } + info->swapBuffersWait = xf86ReturnOptValBool(info->Options, + OPTION_SWAPBUFFERS_WAIT, TRUE); + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "SwapBuffers wait for vsync: %sabled\n", info->swapBuffersWait ? "en" : "dis"); + if (drmmode_pre_init(pScrn, &info->drmmode, pScrn->bitsPerPixel / 8) == FALSE) { xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Kernel modesetting setup failed\n"); goto fail; |