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IABSD.fr/xenocara/lib/libXext/src/XEVI.c
matthieu
- lib/libXext/src/XEVI.c
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/* $Xorg: XEVI.c,v 1.3 2000/08/17 19:45:51 cpqbld Exp $ */ /************************************************************ Copyright (c) 1997 by Silicon Graphics Computer Systems, Inc. Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, 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 Silicon Graphics not be used in advertising or publicity pertaining to distribution of the software without specific prior written permission. Silicon Graphics makes no representation about the suitability of this software for any purpose. It is provided "as is" without any express or implied warranty. SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON GRAPHICS 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. ********************************************************/ /* $XFree86$ */ #define NEED_EVENTS #define NEED_REPLIES #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <X11/Xlibint.h> #include <X11/extensions/XEVI.h> #include <X11/extensions/XEVIstr.h> #include <X11/extensions/Xext.h> #include <X11/extensions/extutil.h> #include <X11/Xutil.h> static XExtensionInfo *xevi_info;/* needs to move to globals.c */ static /* const */ char *xevi_extension_name = EVINAME; #define XeviCheckExtension(dpy,i,val) \ XextCheckExtension (dpy, i, xevi_extension_name, val) /***************************************************************************** * * * private utility routines * * * *****************************************************************************/ static /* const */ XExtensionHooks xevi_extension_hooks = { NULL, /* create_gc */ NULL, /* copy_gc */ NULL, /* flush_gc */ NULL, /* free_gc */ NULL, /* create_font */ NULL, /* free_font */ NULL, /* close_display */ NULL, /* wire_to_event */ NULL, /* event_to_wire */ NULL, /* error */ NULL, /* error_string */ }; static XEXT_GENERATE_FIND_DISPLAY (find_display, xevi_info, xevi_extension_name, &xevi_extension_hooks, 0, NULL) Bool XeviQueryExtension (Display *dpy) { XExtDisplayInfo *info = find_display (dpy); if (XextHasExtension(info)) { return True; } else { return False; } } Bool XeviQueryVersion(Display *dpy, int *majorVersion, int *minorVersion) { XExtDisplayInfo *info = find_display (dpy); xEVIQueryVersionReply rep; register xEVIQueryVersionReq *req; XeviCheckExtension (dpy, info, False); LockDisplay(dpy); GetReq(EVIQueryVersion, req); req->reqType = info->codes->major_opcode; req->xeviReqType = X_EVIQueryVersion; if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { UnlockDisplay(dpy); SyncHandle(); return False; } *majorVersion = rep.majorVersion; *minorVersion = rep.minorVersion; UnlockDisplay(dpy); SyncHandle(); return True; } static Bool notInList(VisualID32 *visual, int sz_visual, VisualID newVisualid) { while (sz_visual-- > 0) { if (*visual == newVisualid) return False; visual++; } return True; } Status XeviGetVisualInfo( register Display *dpy, VisualID *visual, int n_visual, ExtendedVisualInfo **evi_return, int *n_info_return) { XExtDisplayInfo *info = find_display (dpy); register xEVIGetVisualInfoReq *req; xEVIGetVisualInfoReply rep; int sz_info, sz_xInfo, sz_conflict, sz_xConflict; VisualID32 *temp_conflict, *temp_visual, *xConflictPtr; VisualID *conflict; xExtendedVisualInfo *temp_xInfo; XVisualInfo *vinfo; register ExtendedVisualInfo *infoPtr; register xExtendedVisualInfo *xInfoPtr; register int n_data, visualIndex, vinfoIndex; Bool isValid; XeviCheckExtension (dpy, info, 0); *n_info_return = 0; *evi_return = NULL; vinfo = XGetVisualInfo(dpy, 0, NULL, &sz_info); if (!vinfo || !evi_return) { return BadValue; } if (!n_visual || !visual) { /* copy the all visual */ temp_visual = (VisualID32 *)Xmalloc(sz_VisualID32 * sz_info); n_visual = 0; for (vinfoIndex = 0; vinfoIndex < sz_info; vinfoIndex++) if (notInList(temp_visual, n_visual, vinfo[vinfoIndex].visualid)) temp_visual[n_visual++] = vinfo[vinfoIndex].visualid; } else { /* check if the visual is valid */ for (visualIndex = 0; visualIndex < n_visual; visualIndex++) { isValid = False; for (vinfoIndex = 0; vinfoIndex < sz_info; vinfoIndex++) { if (visual[visualIndex] == vinfo[vinfoIndex].visualid) { isValid = True; break; } } if (!isValid) { XFree(vinfo); return BadValue; } } temp_visual = (VisualID32 *)Xmalloc(sz_VisualID32 * n_visual); for (visualIndex = 0; visualIndex < n_visual; visualIndex++) temp_visual[visualIndex] = visual[visualIndex]; } XFree(vinfo); LockDisplay(dpy); GetReq(EVIGetVisualInfo, req); req->reqType = info->codes->major_opcode; req->xeviReqType = X_EVIGetVisualInfo; req->n_visual = n_visual; SetReqLen(req, n_visual, 1); Data(dpy, (char *)temp_visual, n_visual * sz_VisualID32); if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) { UnlockDisplay(dpy); SyncHandle(); Xfree(temp_visual); return BadAccess; } Xfree(temp_visual); sz_info = rep.n_info * sizeof(ExtendedVisualInfo); sz_xInfo = rep.n_info * sz_xExtendedVisualInfo; sz_conflict = rep.n_conflicts * sizeof(VisualID); sz_xConflict = rep.n_conflicts * sz_VisualID32; infoPtr = *evi_return = (ExtendedVisualInfo *)Xmalloc(sz_info + sz_conflict); xInfoPtr = temp_xInfo = (xExtendedVisualInfo *)Xmalloc(sz_xInfo); xConflictPtr = temp_conflict = (VisualID32 *)Xmalloc(sz_xConflict); if (!*evi_return || !temp_xInfo || !temp_conflict) { _XEatData(dpy, (sz_xInfo + sz_xConflict + 3) & ~3); UnlockDisplay(dpy); SyncHandle(); if (evi_return) Xfree(evi_return); if (temp_xInfo) Xfree(temp_xInfo); if (temp_conflict) Xfree(temp_conflict); return BadAlloc; } _XRead(dpy, (char *)temp_xInfo, sz_xInfo); _XRead(dpy, (char *)temp_conflict, sz_xConflict); UnlockDisplay(dpy); SyncHandle(); n_data = rep.n_info; conflict = (VisualID *)(infoPtr + n_data); while (n_data-- > 0) { infoPtr->core_visual_id = xInfoPtr->core_visual_id; infoPtr->screen = xInfoPtr->screen; infoPtr->level = xInfoPtr->level; infoPtr->transparency_type = xInfoPtr->transparency_type; infoPtr->transparency_value = xInfoPtr->transparency_value; infoPtr->min_hw_colormaps = xInfoPtr->min_hw_colormaps; infoPtr->max_hw_colormaps = xInfoPtr->max_hw_colormaps; infoPtr->num_colormap_conflicts = xInfoPtr->num_colormap_conflicts; infoPtr->colormap_conflicts = conflict; conflict += infoPtr->num_colormap_conflicts; infoPtr++; xInfoPtr++; } n_data = rep.n_conflicts; conflict = (VisualID *)(infoPtr); while (n_data-- > 0) *conflict++ = *xConflictPtr++; Xfree(temp_xInfo); Xfree(temp_conflict); *n_info_return = rep.n_info; return Success; }