/* $Xorg: EVI.c,v 1.3 2000/08/17 19:47:55 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: xc/programs/Xserver/Xext/EVI.c,v 3.10tsi Exp $ */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <X11/X.h> #include <X11/Xproto.h> #include "dixstruct.h" #include "extnsionst.h" #include "dix.h" #define _XEVI_SERVER_ #include <X11/extensions/XEVIstr.h> #include "EVIstruct.h" #include "modinit.h" #include "scrnintstr.h" #if 0 static unsigned char XEVIReqCode = 0; #endif static EviPrivPtr eviPriv; static int ProcEVIQueryVersion(ClientPtr client) { /* REQUEST(xEVIQueryVersionReq); */ xEVIQueryVersionReply rep; register int n; REQUEST_SIZE_MATCH (xEVIQueryVersionReq); rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; rep.majorVersion = XEVI_MAJOR_VERSION; rep.minorVersion = XEVI_MAJOR_VERSION; if (client->swapped) { swaps(&rep.sequenceNumber, n); swapl(&rep.length, n); swaps(&rep.majorVersion, n); swaps(&rep.minorVersion, n); } WriteToClient(client, sizeof (xEVIQueryVersionReply), (char *)&rep); return (client->noClientException); } #define swapEviInfo(eviInfo, l) \ { \ int l1 = l; \ xExtendedVisualInfo *eviInfo1 = eviInfo; \ while (l1-- > 0) { \ swapl(&eviInfo1->core_visual_id, n); \ swapl(&eviInfo1->transparency_value, n); \ swaps(&eviInfo1->num_colormap_conflicts, n); \ eviInfo1++; \ } \ } #define swapVisual(visual, l) \ { \ int l1 = l; \ VisualID32 *visual1 = visual; \ while (l1-- > 0) { \ swapl(visual1, n); \ visual1++; \ } \ } static int ProcEVIGetVisualInfo(ClientPtr client) { REQUEST(xEVIGetVisualInfoReq); xEVIGetVisualInfoReply rep; int i, n, n_conflict, n_info, sz_info, sz_conflict; VisualID32 *conflict; unsigned int total_visuals = 0; xExtendedVisualInfo *eviInfo; int status; /* * do this first, otherwise REQUEST_FIXED_SIZE can overflow. we assume * here that you don't have more than 2^32 visuals over all your screens; * this seems like a safe assumption. */ for (i = 0; i < screenInfo.numScreens; i++) total_visuals += screenInfo.screens[i]->numVisuals; if (stuff->n_visual > total_visuals) return BadValue; REQUEST_FIXED_SIZE(xEVIGetVisualInfoReq, stuff->n_visual * sz_VisualID32); status = eviPriv->getVisualInfo((VisualID32 *)&stuff[1], (int)stuff->n_visual, &eviInfo, &n_info, &conflict, &n_conflict); if (status != Success) return status; sz_info = n_info * sz_xExtendedVisualInfo; sz_conflict = n_conflict * sz_VisualID32; rep.type = X_Reply; rep.n_info = n_info; rep.n_conflicts = n_conflict; rep.sequenceNumber = client->sequence; rep.length = (sz_info + sz_conflict) >> 2; if (client->swapped) { swaps(&rep.sequenceNumber, n); swapl(&rep.length, n); swapl(&rep.n_info, n); swapl(&rep.n_conflicts, n); swapEviInfo(eviInfo, n_info); swapVisual(conflict, n_conflict); } WriteToClient(client, sz_xEVIGetVisualInfoReply, (char *)&rep); WriteToClient(client, sz_info, (char *)eviInfo); WriteToClient(client, sz_conflict, (char *)conflict); eviPriv->freeVisualInfo(eviInfo, conflict); return (client->noClientException); } static int ProcEVIDispatch(ClientPtr client) { REQUEST(xReq); switch (stuff->data) { case X_EVIQueryVersion: return ProcEVIQueryVersion (client); case X_EVIGetVisualInfo: return ProcEVIGetVisualInfo (client); default: return BadRequest; } } static int SProcEVIQueryVersion(ClientPtr client) { REQUEST(xEVIQueryVersionReq); int n; swaps(&stuff->length, n); return ProcEVIQueryVersion(client); } static int SProcEVIGetVisualInfo(ClientPtr client) { register int n; REQUEST(xEVIGetVisualInfoReq); swaps(&stuff->length, n); return ProcEVIGetVisualInfo(client); } static int SProcEVIDispatch(ClientPtr client) { REQUEST(xReq); switch (stuff->data) { case X_EVIQueryVersion: return SProcEVIQueryVersion (client); case X_EVIGetVisualInfo: return SProcEVIGetVisualInfo (client); default: return BadRequest; } } /*ARGSUSED*/ static void EVIResetProc(ExtensionEntry *extEntry) { eviDDXReset(); } /**************** * XEVIExtensionInit * * Called from InitExtensions in main() or from QueryExtension() if the * extension is dynamically loaded. * ****************/ void EVIExtensionInit(INITARGS) { #if 0 ExtensionEntry *extEntry; if ((extEntry = AddExtension(EVINAME, 0, 0, ProcEVIDispatch, SProcEVIDispatch, EVIResetProc, StandardMinorOpcode))) { XEVIReqCode = (unsigned char)extEntry->base; #else if (AddExtension(EVINAME, 0, 0, ProcEVIDispatch, SProcEVIDispatch, EVIResetProc, StandardMinorOpcode)) { #endif eviPriv = eviDDXInit(); } }