From 6a3ac03f2b80c80655d66b31c0218754f70156de Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 12 Mar 2010 16:09:23 +1000 Subject: [PATCH] glx/dri2: add dri2 prime support. This adds support for having libGL pick a different driver for prime support. DRI_PRIME env var is set to the value retrieved from the server randr provider calls, by the calling process. (generally DRI_PRIME=1 will be the right answer). Signed-off-by: Dave Airlie --- src/glx/dri2.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/glx/dri2.c b/src/glx/dri2.c index b1b5013..d6b99db 100644 --- a/src/glx/dri2.c +++ b/src/glx/dri2.c @@ -269,6 +269,7 @@ DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName) XExtDisplayInfo *info = DRI2FindDisplay(dpy); xDRI2ConnectReply rep; xDRI2ConnectReq *req; + char *prime; XextCheckExtension(dpy, info, dri2ExtensionName, False); @@ -277,7 +278,19 @@ DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName) req->reqType = info->codes->major_opcode; req->dri2ReqType = X_DRI2Connect; req->window = window; + req->driverType = DRI2DriverDRI; +#ifdef DRI2DriverPrimeShift + prime = getenv("DRI_PRIME"); + if (prime) { + uint32_t primeid; + errno = 0; + primeid = strtoul(prime, NULL, 0); + if (errno == 0) + req->driverType |= ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift); + } +#endif + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { UnlockDisplay(dpy); SyncHandle(); -- 2.7.4