diff options
Diffstat (limited to 'src/XrrOutput.c')
| -rw-r--r-- | src/XrrOutput.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/XrrOutput.c b/src/XrrOutput.c new file mode 100644 index 0000000..f06e329 --- /dev/null +++ b/src/XrrOutput.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" + +XRROutputInfo * +XRRGetOutputInfo (Display *dpy, XRRScreenResources *resources, RROutput output) +{ + XExtDisplayInfo *info = XRRFindDisplay(dpy); + xRRGetOutputInfoReply rep; + xRRGetOutputInfoReq *req; + int nbytes, nbytesRead, rbytes; + int i; + xRRQueryVersionReq *vreq; + XRROutputInfo *xoi; + + RRCheckExtension (dpy, info, 0); + + GetReq (RRGetOutputInfo, req); + req->reqType = info->codes->major_opcode; + req->randrReqType = X_RRGetOutputInfo; + req->output = output; + req->configTimestamp = resources->configTimestamp; + + if (!_XReply (dpy, (xReply *) &rep, 0, xFalse)) + { + SyncHandle (); + return NULL; + } + + nbytes = (long) rep.length << 2; + + nbytesRead = (long) (rep.nCrtcs * 4 + + rep.nModes * 4 + + rep.nClones * 4 + + ((rep.nameLength + 3) & ~3)); + + /* + * first we must compute how much space to allocate for + * randr library's use; we'll allocate the structures in a single + * allocation, on cleanlyness grounds. + */ + + rbytes = (sizeof (XRROutputInfo) + + rep.nCrtcs * sizeof (RRCrtc) + + rep.nModes * sizeof (RRMode) + + rep.nClones * sizeof (RROutput) + + rep.nameLength + 1); /* '\0' terminate name */ + + xoi = (XRROutputInfo *) Xmalloc(rbytes); + if (xoi == NULL) { + _XEatData (dpy, (unsigned long) nbytes); + SyncHandle (); + return NULL; + } + + xoi->timestamp = rep.timestamp; + xoi->crtc = rep.crtc; + xoi->connection = rep.connection; + xoi->subpixel_order = rep.subpixelOrder; + xoi->ncrtc = rep.nCrtcs; + xoi->crtcs = (RRCrtc *) (xoi + 1); + xoi->nmode = rep.nModes; + xoi->modes = (RRMode *) (xoi->crtcs + rep.nCrtcs); + xoi->nclone = rep.nClones; + xoi->clones = (RROutput *) (xoi->modes + rep.nModes); + xoi->name = (char *) (xoi->clones + rep.nClones); + + _XRead32 (dpy, xoi->crtcs, rep.nCrtcs << 2); + _XRead32 (dpy, xoi->modes, rep.nModes << 2); + _XRead32 (dpy, xoi->clones, rep.nClones << 2); + + /* + * Read name and '\0' terminate + */ + _XRead (dpy, xoi->name, rep.nameLength); + xoi->name[rep.nameLength] = '\0'; + + /* + * Skip any extra data + */ + if (nbytes > nbytesRead) + _XEatData (dpy, (unsigned long) (nbytes - nbytesRead)); + + return (XRROutputInfo *) xoi; +} + +void +XRRFreeOutputInfo (XRROutputInfo *outputInfo) +{ + Xfree (outputInfo); +} + +Atom * +XRRListOutputProperties (Display *dpy, RROutput output, int *nprop) +{ +} + +void +XRRChangeOutputProperty (Display *dpy, RROutput output, + Atom property, Atom type, + int format, int mode, + _Xconst unsigned char *data, int nelements) +{ +} + +void +XRRDeleteOutputProperty (Display *dpy, RROutput output, Atom property) +{ +} + +int +XRRGetOutputProperty (Display *dpy, RROutput output, + Atom property, long offset, long length, + Bool delete, Atom req_type, + Atom *actual_type, int *actual_format, + unsigned long *nitems, unsigned long *bytes_after, + unsigned char **prop) +{ +} |