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/*
* 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.
*/
#include "randrstr.h"
RESTYPE RRModeType;
static Bool
RRModeEqual (xRRModeInfo *a, xRRModeInfo *b)
{
if (a->width != b->width) return FALSE;
if (a->height != b->height) return FALSE;
if (a->dotClock != b->dotClock) return FALSE;
if (a->hSyncStart != b->hSyncStart) return FALSE;
if (a->hSyncEnd != b->hSyncEnd) return FALSE;
if (a->hTotal != b->hTotal) return FALSE;
if (a->hSkew != b->hSkew) return FALSE;
if (a->vSyncStart != b->vSyncStart) return FALSE;
if (a->vSyncEnd != b->vSyncEnd) return FALSE;
if (a->vTotal != b->vTotal) return FALSE;
if (a->nameLength != b->nameLength) return FALSE;
if (a->modeFlags != b->modeFlags) return FALSE;
return TRUE;
}
RRModePtr
RRModeGet (ScreenPtr pScreen,
xRRModeInfo *modeInfo,
const char *name)
{
rrScrPriv (pScreen);
int i;
RRModePtr mode;
RRModePtr *modes;
for (i = 0; i < pScrPriv->numModes; i++)
{
mode = pScrPriv->modes[i];
if (RRModeEqual (&mode->mode, modeInfo) &&
!memcmp (name, mode->name, modeInfo->nameLength))
{
++mode->refcnt;
return mode;
}
}
mode = xalloc (sizeof (RRModeRec) + modeInfo->nameLength + 1);
if (!mode)
return NULL;
mode->refcnt = 1;
mode->mode = *modeInfo;
mode->name = (char *) (mode + 1);
memcpy (mode->name, name, modeInfo->nameLength);
mode->name[modeInfo->nameLength] = '\0';
mode->screen = pScreen;
mode->userDefined = FALSE;
if (pScrPriv->numModes)
modes = xrealloc (pScrPriv->modes,
(pScrPriv->numModes + 1) * sizeof (RRModePtr));
else
modes = xalloc (sizeof (RRModePtr));
if (!modes)
{
xfree (mode);
return NULL;
}
mode->mode.id = FakeClientID(0);
if (!AddResource (mode->mode.id, RRModeType, (pointer) mode))
return NULL;
++mode->refcnt;
pScrPriv->modes = modes;
pScrPriv->modes[pScrPriv->numModes++] = mode;
pScrPriv->changed = TRUE;
return mode;
}
void
RRModeDestroy (RRModePtr mode)
{
ScreenPtr pScreen;
rrScrPrivPtr pScrPriv;
int m;
if (--mode->refcnt > 0)
return;
pScreen = mode->screen;
pScrPriv = rrGetScrPriv (pScreen);
for (m = 0; m < pScrPriv->numModes; m++)
{
if (pScrPriv->modes[m] == mode)
{
memmove (pScrPriv->modes + m, pScrPriv->modes + m + 1,
(pScrPriv->numModes - m - 1) * sizeof (RRModePtr));
pScrPriv->numModes--;
if (!pScrPriv->numModes)
{
xfree (pScrPriv->modes);
pScrPriv->modes = NULL;
}
pScrPriv->changed = TRUE;
break;
}
}
xfree (mode);
}
static int
RRModeDestroyResource (pointer value, XID pid)
{
RRModeDestroy ((RRModePtr) value);
return 1;
}
Bool
RRModeInit (void)
{
RRModeType = CreateNewResourceType (RRModeDestroyResource);
if (!RRModeType)
return FALSE;
#ifdef XResExtension
RegisterResourceName (RRModeType, "MODE");
#endif
return TRUE;
}
void
RRModePruneUnused (ScreenPtr pScreen)
{
rrScrPriv (pScreen);
RRModePtr *unused, mode;
int m;
int num = pScrPriv->numModes;
unused = xalloc (num * sizeof (RRModePtr));
if (!unused)
return;
memcpy (unused, pScrPriv->modes, num * sizeof (RRModePtr));
for (m = 0; m < num; m++) {
mode = unused[m];
if (mode->refcnt == 1 && !mode->userDefined)
FreeResource (mode->mode.id, 0);
}
xfree (unused);
}
int
ProcRRCreateMode (ClientPtr client)
{
REQUEST(xRRCreateModeReq);
REQUEST_SIZE_MATCH(xRRCreateModeReq);
(void) stuff;
return BadImplementation;
}
int
ProcRRDestroyMode (ClientPtr client)
{
REQUEST(xRRDestroyModeReq);
REQUEST_SIZE_MATCH(xRRDestroyModeReq);
(void) stuff;
return BadImplementation;
}
int
ProcRRAddOutputMode (ClientPtr client)
{
REQUEST(xRRAddOutputModeReq);
REQUEST_SIZE_MATCH(xRRAddOutputModeReq);
(void) stuff;
return BadImplementation;
}
int
ProcRRDeleteOutputMode (ClientPtr client)
{
REQUEST(xRRDeleteOutputModeReq);
REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);
(void) stuff;
return BadImplementation;
}
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