diff options
Diffstat (limited to 'src/XrrMode.c')
| -rw-r--r-- | src/XrrMode.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/XrrMode.c b/src/XrrMode.c new file mode 100644 index 0000000..58ef68b --- /dev/null +++ b/src/XrrMode.c @@ -0,0 +1,149 @@ +/* + * Copyright © 2006 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL 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 PERFORMANCE + * OF THIS SOFTWARE. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <X11/Xlib.h> +/* we need to be able to manipulate the Display structure on events */ +#include <X11/Xlibint.h> +#include <X11/extensions/render.h> +#include <X11/extensions/Xrender.h> +#include "Xrandrint.h" + +XRRModeInfo * +XRRAllocModeInfo (char *name, int nameLength) +{ + XRRModeInfo *mode_info; + + mode_info = Xmalloc (sizeof (XRRModeInfo) + nameLength + 1); + if (!mode_info) + return NULL; + memset (mode_info, '\0', sizeof (XRRModeInfo)); + mode_info->nameLength = nameLength; + mode_info->name = (char *) (mode_info + 1); + memcpy (mode_info->name, name, nameLength); + mode_info->name[nameLength] = '\0'; + return mode_info; +} + +RRMode +XRRCreateMode (Display *dpy, Window window, XRRModeInfo *mode_info) +{ + XExtDisplayInfo *info = XRRFindDisplay(dpy); + xRRCreateModeReq *req; + xRRCreateModeReply rep; + + RRCheckExtension (dpy, info, None); + + LockDisplay(dpy); + GetReq (RRCreateMode, req); + req->reqType = info->codes->major_opcode; + req->randrReqType = X_RRCreateMode; + req->length += (mode_info->nameLength + 3) >> 2; + + req->window = window; + + req->modeInfo.id = 0; + req->modeInfo.width = mode_info->width; + req->modeInfo.height = mode_info->height; + req->modeInfo.dotClock = mode_info->dotClock; + req->modeInfo.hSyncStart = mode_info->hSyncStart; + req->modeInfo.hSyncEnd = mode_info->hSyncEnd; + req->modeInfo.hTotal = mode_info->hTotal; + req->modeInfo.hSkew = mode_info->hSkew; + req->modeInfo.vSyncStart = mode_info->vSyncStart; + req->modeInfo.vSyncEnd = mode_info->vSyncEnd; + req->modeInfo.vTotal = mode_info->vTotal; + req->modeInfo.nameLength = mode_info->nameLength; + req->modeInfo.modeFlags = mode_info->modeFlags; + + Data (dpy, mode_info->name, mode_info->nameLength); + if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) + { + UnlockDisplay (dpy); + SyncHandle (); + return None; + } + + UnlockDisplay (dpy); + SyncHandle (); + return rep.mode; +} + +void +XRRDestroyMode (Display *dpy, RRMode mode) +{ + XExtDisplayInfo *info = XRRFindDisplay(dpy); + xRRDestroyModeReq *req; + RRSimpleCheckExtension (dpy, info); + + LockDisplay(dpy); + GetReq (RRDestroyMode, req); + req->reqType = info->codes->major_opcode; + req->randrReqType = X_RRDestroyMode; + req->mode = mode; + UnlockDisplay (dpy); + SyncHandle (); +} + +void +XRRAddOutputMode (Display *dpy, RROutput output, RRMode mode) +{ + XExtDisplayInfo *info = XRRFindDisplay(dpy); + xRRAddOutputModeReq *req; + RRSimpleCheckExtension (dpy, info); + + LockDisplay(dpy); + GetReq (RRAddOutputMode, req); + req->reqType = info->codes->major_opcode; + req->randrReqType = X_RRAddOutputMode; + req->output = output; + req->mode = mode; + UnlockDisplay (dpy); + SyncHandle (); +} + +void +XRRDeleteOutputMode (Display *dpy, RROutput output, RRMode mode) +{ + XExtDisplayInfo *info = XRRFindDisplay(dpy); + xRRDeleteOutputModeReq *req; + RRSimpleCheckExtension (dpy, info); + + LockDisplay(dpy); + GetReq (RRDeleteOutputMode, req); + req->reqType = info->codes->major_opcode; + req->randrReqType = X_RRDeleteOutputMode; + req->output = output; + req->mode = mode; + UnlockDisplay (dpy); + SyncHandle (); +} + +void +XRRFreeModeInfo (XRRModeInfo *modeInfo) +{ + Xfree (modeInfo); +} |