diff options
Diffstat (limited to 'xorg-server/Xext/EVI.c')
| -rw-r--r-- | xorg-server/Xext/EVI.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/xorg-server/Xext/EVI.c b/xorg-server/Xext/EVI.c new file mode 100644 index 000000000..a637bae5d --- /dev/null +++ b/xorg-server/Xext/EVI.c @@ -0,0 +1,200 @@ +/************************************************************ +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. +********************************************************/ + +#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" + +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 (AddExtension(EVINAME, 0, 0, + ProcEVIDispatch, SProcEVIDispatch, + EVIResetProc, StandardMinorOpcode)) { + eviPriv = eviDDXInit(); + } +} |