xf86vmode.c

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	    ErrorF("                 hdsp: %d hbeg: %d hend: %d httl: %d\n",
		    mptr->HDisplay, mptr->HSyncStart,
		    mptr->HSyncEnd, mptr->HTotal);
	    ErrorF("                 vdsp: %d vbeg: %d vend: %d vttl: %d flags: %d\n",
		    mptr->VDisplay, mptr->VSyncStart, mptr->VSyncEnd,
		    mptr->VTotal, mptr->Flags);
	}
	if (MODEMATCH(mptr, stuff, vptr)) {
	    mptr->prev->next = mptr->next;
	    mptr->next->prev = mptr->prev;
	    xfree(mptr->name);
	    xfree(mptr->Private);
	    xfree(mptr);
	    if (xf86Verbose)
		ErrorF("DeleteModeLine - Succeeded\n");
	    return(client->noClientException);
	}
    }
    return BadValue;
}

static int
ProcXF86VidModeModModeLine(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeModModeLineReq);
    ScrnInfoPtr vptr;
    DisplayModePtr mptr;
    DisplayModeRec modetmp;
    int len;

    if (xf86Verbose > 1) {
	ErrorF("ModModeLine - scrn: %d hdsp: %d hbeg: %d hend: %d httl: %d\n",
		stuff->screen, stuff->hdisplay, stuff->hsyncstart,
		stuff->hsyncend, stuff->htotal);
	ErrorF("              vdsp: %d vbeg: %d vend: %d vttl: %d flags: %d\n",
		stuff->vdisplay, stuff->vsyncstart, stuff->vsyncend,
		stuff->vtotal, stuff->flags);
    }
    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    vptr = (ScrnInfoPtr) screenInfo.screens[stuff->screen]->devPrivates[xf86ScreenIndex].ptr;
    mptr = vptr->modes;

    REQUEST_AT_LEAST_SIZE(xXF86VidModeModModeLineReq);
    len = client->req_len - (sizeof(xXF86VidModeModModeLineReq) >> 2);
    if (len != stuff->privsize)
	return BadLength;

    if (stuff->hsyncstart < stuff->hdisplay   ||
	stuff->hsyncend   < stuff->hsyncstart ||
	stuff->htotal     < stuff->hsyncend   ||
	stuff->vsyncstart < stuff->vdisplay   ||
	stuff->vsyncend   < stuff->vsyncstart ||
	stuff->vtotal     < stuff->vsyncend)
	return BadValue;

    memcpy(&modetmp, mptr, sizeof(DisplayModeRec));

    modetmp.HDisplay   = stuff->hdisplay;
    modetmp.HSyncStart = stuff->hsyncstart;
    modetmp.HSyncEnd   = stuff->hsyncend;
    modetmp.HTotal     = stuff->htotal;
    modetmp.VDisplay   = stuff->vdisplay;
    modetmp.VSyncStart = stuff->vsyncstart;
    modetmp.VSyncEnd   = stuff->vsyncend;
    modetmp.VTotal     = stuff->vtotal;
    modetmp.Flags      = stuff->flags;
    if (mptr->PrivSize && stuff->privsize) {
	if (mptr->PrivSize != stuff->privsize)
	    return BadValue;
    }
    if (mptr->PrivSize && mptr->Private) {
	modetmp.Private =
		(INT32 *)ALLOCATE_LOCAL(mptr->PrivSize * sizeof(INT32));
	if (stuff->privsize) {
	    if (xf86Verbose > 1)
		ErrorF("ModModeLine - Request includes privates\n");
	    memcpy(modetmp.Private, &stuff[1], mptr->PrivSize * sizeof(INT32));
	} else
	    memcpy(modetmp.Private, mptr->Private,
		   mptr->PrivSize * sizeof(INT32));
    }

    /* Check that the mode is consistent with the monitor specs */
    switch (xf86CheckMode(vptr, &modetmp, vptr->monitor, FALSE)) {
	case MODE_HSYNC:
	    DEALLOCATE_LOCAL(modetmp.Private);
	    return vidmodeErrorBase + XF86VidModeBadHTimings;
	case MODE_VSYNC:
	    DEALLOCATE_LOCAL(modetmp.Private);
	    return vidmodeErrorBase + XF86VidModeBadVTimings;
    }

    /* Check that the driver is happy with the mode */
    if (vptr->ValidMode(&modetmp, xf86Verbose, MODE_VID) != MODE_OK) {
	DEALLOCATE_LOCAL(modetmp.Private);
	return vidmodeErrorBase + XF86VidModeModeUnsuitable;
    }

    DEALLOCATE_LOCAL(modetmp.Private);

    mptr->HDisplay   = stuff->hdisplay;
    mptr->HSyncStart = stuff->hsyncstart;
    mptr->HSyncEnd   = stuff->hsyncend;
    mptr->HTotal     = stuff->htotal;
    mptr->VDisplay   = stuff->vdisplay;
    mptr->VSyncStart = stuff->vsyncstart;
    mptr->VSyncEnd   = stuff->vsyncend;
    mptr->VTotal     = stuff->vtotal;
    mptr->Flags      = stuff->flags;
    mptr->CrtcHDisplay   = stuff->hdisplay;
    mptr->CrtcHSyncStart = stuff->hsyncstart;
    mptr->CrtcHSyncEnd   = stuff->hsyncend;
    mptr->CrtcHTotal     = stuff->htotal;
    mptr->CrtcVDisplay   = stuff->vdisplay;
    mptr->CrtcVSyncStart = stuff->vsyncstart;
    mptr->CrtcVSyncEnd   = stuff->vsyncend;
    mptr->CrtcVTotal     = stuff->vtotal;
    mptr->CrtcVAdjusted = FALSE;
    mptr->CrtcHAdjusted = FALSE;
    if (mptr->Flags & V_DBLSCAN)
    {
	mptr->CrtcVDisplay *= 2;
	mptr->CrtcVSyncStart *= 2;
	mptr->CrtcVSyncEnd *= 2;
	mptr->CrtcVTotal *= 2;
	mptr->CrtcVAdjusted = TRUE;
    }
    if (mptr->PrivSize && stuff->privsize) {
	memcpy(mptr->Private, &stuff[1], mptr->PrivSize * sizeof(INT32));
    }

    (vptr->SwitchMode)(mptr);
    (vptr->AdjustFrame)(vptr->frameX0, vptr->frameY0);

    if (xf86Verbose > 1)
	ErrorF("ModModeLine - Succeeded\n");
    return(client->noClientException);
}

static int
ProcXF86VidModeValidateModeLine(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeValidateModeLineReq);
    xXF86VidModeValidateModeLineReply rep;
    ScrnInfoPtr vptr;
    DisplayModePtr mptr;
    DisplayModeRec modetmp;
    int len, status;

    if (xf86Verbose > 1) {
	ErrorF("ValidateModeLine - scrn: %d clock: %d\n",
		stuff->screen, stuff->dotclock);
	ErrorF("                   hdsp: %d hbeg: %d hend: %d httl: %d\n",
		stuff->hdisplay, stuff->hsyncstart,
		stuff->hsyncend, stuff->htotal);
	ErrorF("                   vdsp: %d vbeg: %d vend: %d vttl: %d flags: %d\n",
		stuff->vdisplay, stuff->vsyncstart, stuff->vsyncend,
		stuff->vtotal, stuff->flags);
    }
    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    vptr = (ScrnInfoPtr) screenInfo.screens[stuff->screen]->devPrivates[xf86ScreenIndex].ptr;
    mptr = vptr->modes;

    REQUEST_AT_LEAST_SIZE(xXF86VidModeValidateModeLineReq);
    len = client->req_len - (sizeof(xXF86VidModeValidateModeLineReq) >> 2);
    if (len != stuff->privsize)
	return BadLength;

    status = MODE_OK;
    modetmp.Private = NULL;

    if (stuff->hsyncstart < stuff->hdisplay   ||
	stuff->hsyncend   < stuff->hsyncstart ||
	stuff->htotal     < stuff->hsyncend   ||
	stuff->vsyncstart < stuff->vdisplay   ||
	stuff->vsyncend   < stuff->vsyncstart ||
	stuff->vtotal     < stuff->vsyncend)
    {
	status = MODE_BAD;
	goto status_reply;
    }

    memcpy(&modetmp, mptr, sizeof(DisplayModeRec));

    modetmp.HDisplay   = stuff->hdisplay;
    modetmp.HSyncStart = stuff->hsyncstart;
    modetmp.HSyncEnd   = stuff->hsyncend;
    modetmp.HTotal     = stuff->htotal;
    modetmp.VDisplay   = stuff->vdisplay;
    modetmp.VSyncStart = stuff->vsyncstart;
    modetmp.VSyncEnd   = stuff->vsyncend;
    modetmp.VTotal     = stuff->vtotal;
    modetmp.Flags      = stuff->flags;
    modetmp.Private    = NULL;
    if (mptr->PrivSize && stuff->privsize) {
	if (mptr->PrivSize != stuff->privsize) {
	    status = MODE_BAD;
	    goto status_reply;
	}
    }
    if (mptr->PrivSize && mptr->Private) {
	modetmp.Private =
		(INT32 *)ALLOCATE_LOCAL(mptr->PrivSize * sizeof(INT32));
	if (stuff->privsize) {
	    if (xf86Verbose)
		ErrorF("ValidateModeLine - Request includes privates\n");
	    memcpy(modetmp.Private, &stuff[1], mptr->PrivSize * sizeof(INT32));
	} else
	    memcpy(modetmp.Private, mptr->Private,
		   mptr->PrivSize * sizeof(INT32));
    }

    /* Check that the mode is consistent with the monitor specs */
    if ((status = xf86CheckMode(vptr, &modetmp, vptr->monitor, FALSE)) != MODE_OK)
	goto status_reply;

    /* Check that the driver is happy with the mode */
    status = vptr->ValidMode(&modetmp, xf86Verbose, MODE_VID);

status_reply:
    if (modetmp.Private)
	DEALLOCATE_LOCAL(modetmp.Private);
    rep.type = X_Reply;
    rep.length = (SIZEOF(xXF86VidModeValidateModeLineReply)
   			 - SIZEOF(xGenericReply)) >> 2;
    rep.sequenceNumber = client->sequence;
    rep.status = status;
    if (client->swapped) {
        register int n;
    	swaps(&rep.sequenceNumber, n);
    	swapl(&rep.length, n);
	swapl(&rep.status, n);
    }
    WriteToClient(client, sizeof(xXF86VidModeValidateModeLineReply), (char *)&rep);
    if (xf86Verbose > 1)
	ErrorF("ValidateModeLine - Succeeded\n");
    return(client->noClientException);
}

static int
ProcXF86VidModeSwitchMode(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeSwitchModeReq);
    ScreenPtr vptr;

    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    vptr = screenInfo.screens[stuff->screen];
    if (xf86Info.dontZoom)
	return vidmodeErrorBase + XF86VidModeZoomLocked;

    REQUEST_SIZE_MATCH(xXF86VidModeSwitchModeReq);

    xf86ZoomViewport(vptr, (short)stuff->zoom);
    return (client->noClientException);
}

static int
ProcXF86VidModeSwitchToMode(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeSwitchToModeReq);
    ScrnInfoPtr vptr;
    DisplayModePtr curmptr, mptr;
    int len;

    if (xf86Verbose > 1) {
	ErrorF("SwitchToMode - scrn: %d clock: %d\n",
		stuff->screen, stuff->dotclock);
	ErrorF("               hdsp: %d hbeg: %d hend: %d httl: %d\n",
		stuff->hdisplay, stuff->hsyncstart,
		stuff->hsyncend, stuff->htotal);
	ErrorF("               vdsp: %d vbeg: %d vend: %d vttl: %d flags: %d\n",
		stuff->vdisplay, stuff->vsyncstart, stuff->vsyncend,
		stuff->vtotal, stuff->flags);
    }
    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    if (xf86Info.dontZoom)
	return vidmodeErrorBase + XF86VidModeZoomLocked;

    vptr = (ScrnInfoPtr) screenInfo.screens[stuff->screen]->devPrivates[xf86ScreenIndex].ptr;
    curmptr = mptr = vptr->modes;

    REQUEST_AT_LEAST_SIZE(xXF86VidModeSwitchToModeReq);
    len = client->req_len - (sizeof(xXF86VidModeSwitchToModeReq) >> 2);
    if (len != stuff->privsize)
	return BadLength;


    if (MODEMATCH(mptr, stuff, vptr))
	return (client->noClientException);

    while ((mptr = mptr->next) != curmptr) {
	if (xf86Verbose > 1) {
	    ErrorF("Checking against clock: %d (%d)\n",
		    mptr->Clock, CLOCKSPD(mptr->Clock, vptr));
	    ErrorF("                 hdsp: %d hbeg: %d hend: %d httl: %d\n",
		    mptr->HDisplay, mptr->HSyncStart,
		    mptr->HSyncEnd, mptr->HTotal);
	    ErrorF("                 vdsp: %d vbeg: %d vend: %d vttl: %d flags: %d\n",
		    mptr->VDisplay, mptr->VSyncStart, mptr->VSyncEnd,
		    mptr->VTotal, mptr->Flags);
	}
	if (MODEMATCH(mptr, stuff, vptr)) {
	    if ((vptr->SwitchMode)(mptr)) {
		vptr->modes = mptr;
		vptr->frameX0 = (vptr->frameX1 +vptr->frameX0 -mptr->HDisplay)/2;
		vptr->frameX1 = vptr->frameX0 + mptr->HDisplay -1;
		if (vptr->frameX0 < 0) {
		    vptr->frameX0 = 0;
		    vptr->frameX1 = mptr->HDisplay -1;
		} else if (vptr->frameX1 >= vptr->virtualX) {
		    vptr->frameX0 = vptr->virtualX - mptr->HDisplay;
		    vptr->frameX1 = vptr->frameX0 + mptr->HDisplay -1;
		}
		vptr->frameY0 = (vptr->frameY1 +vptr->frameY0 -mptr->VDisplay)/2;
		vptr->frameY1 = vptr->frameY0 + mptr->VDisplay -1;
		if (vptr->frameY0 < 0) {
		    vptr->frameY0 = 0;
		    vptr->frameY1 = mptr->VDisplay -1;
		} else if (vptr->frameY1 >= vptr->virtualY) {
		    vptr->frameY0 = vptr->virtualY - mptr->VDisplay;
		    vptr->frameY1 = vptr->frameY0 + mptr->VDisplay -1;
		}
	    }
	    (vptr->AdjustFrame)(vptr->frameX0, vptr->frameY0);
	    if (xf86Verbose > 1)
		ErrorF("SwitchToMode - Succeeded\n");
	    return(client->noClientException);
	}
    }
    return BadValue;
}

static int
ProcXF86VidModeLockModeSwitch(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeLockModeSwitchReq);
    ScreenPtr vptr;

    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    vptr = screenInfo.screens[stuff->screen];
    if (xf86Info.dontZoom)
	return vidmodeErrorBase + XF86VidModeZoomLocked;

    REQUEST_SIZE_MATCH(xXF86VidModeLockModeSwitchReq);

    xf86LockZoom(vptr, (short)stuff->lock);
    return (client->noClientException);
}

static int
ProcXF86VidModeGetMonitor(client)
    register ClientPtr client;
{
    REQUEST(xXF86VidModeGetMonitorReq);
    xXF86VidModeGetMonitorReply rep;
    register int n;
    ScrnInfoPtr vptr;
    MonPtr mptr;
    CARD32 *hsyncdata, *vsyncdata;
    int i;

    if (stuff->screen > screenInfo.numScreens)
	return BadValue;

    vptr = (ScrnInfoPtr) screenInfo.screens[stuff->screen]->devPrivates[xf86ScreenIndex].ptr;
    mptr = vptr->monitor;

    REQUEST_SIZE_MATCH(xXF86VidModeGetMonitorReq);
    rep.type = X_Reply;
    if (mptr->vendor)
	rep.vendorLength = strlen(mptr->vendor);
    else
	rep.vendorLength = 0;
    if (mptr->model)
	rep.modelLength = strlen(mptr->model);
    else
	rep.modelLength = 0;
    rep.length = (SIZEOF(xXF86VidModeGetMonitorReply) - SIZEOF(xGenericReply) +
		  (mptr->n_hsync + mptr->n_vrefresh) * sizeof(CARD32) +
	          ((rep.vendorLength + 3) & ~3) +
		  ((rep.modelLength + 3) & ~3)) >> 2;
    rep.sequenceNumber = client->sequence;
    rep.nhsync = mptr->n_hsync;
    rep.nvsync = mptr->n_vrefresh;
#if 0
    rep.bandwidth = (unsigned long)(mptr->bandwidth * 1e6);
#endif
    hsyncdata = ALLOCATE_LOCAL(mptr->n_hsync * sizeof(CARD32));
    if (!hsyncdata) {