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Diffstat (limited to 'src/glx/x11/dri2.c')
| -rw-r--r-- | src/glx/x11/dri2.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/glx/x11/dri2.c b/src/glx/x11/dri2.c new file mode 100644 index 00000000000..e7044ab4248 --- /dev/null +++ b/src/glx/x11/dri2.c @@ -0,0 +1,252 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg ([email protected]) + */ + + +#define NEED_REPLIES +#include <X11/Xlibint.h> +#include <X11/extensions/Xext.h> +#include <X11/extensions/extutil.h> +#include <X11/extensions/dri2proto.h> +#include "glheader.h" +#include "xf86drm.h" +#include "dri2.h" + +static char dri2ExtensionName[] = DRI2_NAME; +static XExtensionInfo *dri2Info; +static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info) +static /* const */ XExtensionHooks dri2ExtensionHooks = { + NULL, /* create_gc */ + NULL, /* copy_gc */ + NULL, /* flush_gc */ + NULL, /* free_gc */ + NULL, /* create_font */ + NULL, /* free_font */ + DRI2CloseDisplay, /* close_display */ + NULL, /* wire_to_event */ + NULL, /* event_to_wire */ + NULL, /* error */ + NULL, /* error_string */ +}; + +static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay, dri2Info, + dri2ExtensionName, + &dri2ExtensionHooks, + 0, NULL) + +Bool DRI2QueryExtension(Display *dpy, int *eventBase, int *errorBase) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + + if (XextHasExtension(info)) { + *eventBase = info->codes->first_event; + *errorBase = info->codes->first_error; + return True; + } + + return False; +} + +Bool DRI2QueryVersion(Display *dpy, int *major, int *minor) +{ + XExtDisplayInfo *info = DRI2FindDisplay (dpy); + xDRI2QueryVersionReply rep; + xDRI2QueryVersionReq *req; + + XextCheckExtension (dpy, info, dri2ExtensionName, False); + + LockDisplay(dpy); + GetReq(DRI2QueryVersion, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2QueryVersion; + req->majorVersion = DRI2_MAJOR; + req->minorVersion = DRI2_MINOR; + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + *major = rep.majorVersion; + *minor = rep.minorVersion; + UnlockDisplay(dpy); + SyncHandle(); + + return True; +} + +Bool DRI2Connect(Display *dpy, int screen, + char **driverName, char **busId, unsigned int *sareaHandle) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + xDRI2ConnectReply rep; + xDRI2ConnectReq *req; + + XextCheckExtension (dpy, info, dri2ExtensionName, False); + + LockDisplay(dpy); + GetReq(DRI2Connect, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2Connect; + req->screen = screen; + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + + *sareaHandle = rep.sareaHandle; + + *driverName = Xmalloc(rep.driverNameLength + 1); + if (*driverName == NULL) { + _XEatData(dpy, + ((rep.driverNameLength + 3) & ~3) + + ((rep.busIdLength + 3) & ~3)); + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + _XReadPad(dpy, *driverName, rep.driverNameLength); + (*driverName)[rep.driverNameLength] = '\0'; + + *busId = Xmalloc(rep.busIdLength + 1); + if (*busId == NULL) { + Xfree(*driverName); + _XEatData(dpy, ((rep.busIdLength + 3) & ~3)); + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + _XReadPad(dpy, *busId, rep.busIdLength); + (*busId)[rep.busIdLength] = '\0'; + + UnlockDisplay(dpy); + SyncHandle(); + + return rep.sareaHandle != 0; +} + +Bool DRI2AuthConnection(Display *dpy, int screen, drm_magic_t magic) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + xDRI2AuthConnectionReq *req; + xDRI2AuthConnectionReply rep; + + XextCheckExtension (dpy, info, dri2ExtensionName, False); + + LockDisplay(dpy); + GetReq(DRI2AuthConnection, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2AuthConnection; + req->screen = screen; + req->magic = magic; + rep.authenticated = 0; + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + UnlockDisplay(dpy); + SyncHandle(); + + return rep.authenticated; +} + +Bool DRI2CreateDrawable(Display *dpy, XID drawable, + unsigned int *handle, unsigned int *head) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + xDRI2CreateDrawableReply rep; + xDRI2CreateDrawableReq *req; + + XextCheckExtension (dpy, info, dri2ExtensionName, False); + + LockDisplay(dpy); + GetReq(DRI2CreateDrawable, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2CreateDrawable; + req->drawable = drawable; + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + UnlockDisplay(dpy); + SyncHandle(); + + *handle = rep.handle; + *head = rep.head; + + return True; +} + +void DRI2DestroyDrawable(Display *dpy, XID drawable) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + xDRI2DestroyDrawableReq *req; + + XextSimpleCheckExtension (dpy, info, dri2ExtensionName); + + XSync(dpy, GL_FALSE); + + LockDisplay(dpy); + GetReq(DRI2DestroyDrawable, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2DestroyDrawable; + req->drawable = drawable; + UnlockDisplay(dpy); + SyncHandle(); +} + +Bool DRI2ReemitDrawableInfo(Display *dpy, XID drawable, unsigned int *head) +{ + XExtDisplayInfo *info = DRI2FindDisplay(dpy); + xDRI2ReemitDrawableInfoReply rep; + xDRI2ReemitDrawableInfoReq *req; + + XextCheckExtension (dpy, info, dri2ExtensionName, False); + + LockDisplay(dpy); + GetReq(DRI2ReemitDrawableInfo, req); + req->reqType = info->codes->major_opcode; + req->dri2ReqType = X_DRI2ReemitDrawableInfo; + req->drawable = drawable; + if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return False; + } + UnlockDisplay(dpy); + SyncHandle(); + + *head = rep.head; + + return True; +} |