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Diffstat (limited to 'xorg-server/randr/rrmode.c')
-rw-r--r--xorg-server/randr/rrmode.c763
1 files changed, 381 insertions, 382 deletions
diff --git a/xorg-server/randr/rrmode.c b/xorg-server/randr/rrmode.c
index ae7939909..63a2d2a74 100644
--- a/xorg-server/randr/rrmode.c
+++ b/xorg-server/randr/rrmode.c
@@ -1,382 +1,381 @@
-/*
- * 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;
-}
-
-/*
- * Keep a list so it's easy to find modes in the resource database.
- */
-static int num_modes;
-static RRModePtr *modes;
-
-static RRModePtr
-RRModeCreate (xRRModeInfo *modeInfo,
- const char *name,
- ScreenPtr userScreen)
-{
- RRModePtr mode, *newModes;
-
- if (!RRInit ())
- return NULL;
-
- mode = malloc(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->userScreen = userScreen;
-
- if (num_modes)
- newModes = realloc(modes, (num_modes + 1) * sizeof (RRModePtr));
- else
- newModes = malloc(sizeof (RRModePtr));
-
- if (!newModes)
- {
- free(mode);
- return NULL;
- }
-
- mode->mode.id = FakeClientID(0);
- if (!AddResource (mode->mode.id, RRModeType, (pointer) mode))
- return NULL;
- modes = newModes;
- modes[num_modes++] = mode;
-
- /*
- * give the caller a reference to this mode
- */
- ++mode->refcnt;
- return mode;
-}
-
-static RRModePtr
-RRModeFindByName (const char *name,
- CARD16 nameLength)
-{
- int i;
- RRModePtr mode;
-
- for (i = 0; i < num_modes; i++)
- {
- mode = modes[i];
- if (mode->mode.nameLength == nameLength &&
- !memcmp (name, mode->name, nameLength))
- {
- return mode;
- }
- }
- return NULL;
-}
-
-RRModePtr
-RRModeGet (xRRModeInfo *modeInfo,
- const char *name)
-{
- int i;
-
- for (i = 0; i < num_modes; i++)
- {
- RRModePtr mode = modes[i];
- if (RRModeEqual (&mode->mode, modeInfo) &&
- !memcmp (name, mode->name, modeInfo->nameLength))
- {
- ++mode->refcnt;
- return mode;
- }
- }
-
- return RRModeCreate (modeInfo, name, NULL);
-}
-
-static RRModePtr
-RRModeCreateUser (ScreenPtr pScreen,
- xRRModeInfo *modeInfo,
- const char *name,
- int *error)
-{
- RRModePtr mode;
-
- mode = RRModeFindByName (name, modeInfo->nameLength);
- if (mode)
- {
- *error = BadName;
- return NULL;
- }
-
- mode = RRModeCreate (modeInfo, name, pScreen);
- if (!mode)
- {
- *error = BadAlloc;
- return NULL;
- }
- *error = Success;
- return mode;
-}
-
-RRModePtr *
-RRModesForScreen (ScreenPtr pScreen, int *num_ret)
-{
- rrScrPriv(pScreen);
- int o, c, m;
- RRModePtr *screen_modes;
- int num_screen_modes = 0;
-
- screen_modes = malloc((num_modes ? num_modes : 1) * sizeof (RRModePtr));
- if (!screen_modes)
- return NULL;
-
- /*
- * Add modes from all outputs
- */
- for (o = 0; o < pScrPriv->numOutputs; o++)
- {
- RROutputPtr output = pScrPriv->outputs[o];
- int m, n;
-
- for (m = 0; m < output->numModes + output->numUserModes; m++)
- {
- RRModePtr mode = (m < output->numModes ?
- output->modes[m] :
- output->userModes[m-output->numModes]);
- for (n = 0; n < num_screen_modes; n++)
- if (screen_modes[n] == mode)
- break;
- if (n == num_screen_modes)
- screen_modes[num_screen_modes++] = mode;
- }
- }
- /*
- * Add modes from all crtcs. The goal is to
- * make sure all available and active modes
- * are visible to the client
- */
- for (c = 0; c < pScrPriv->numCrtcs; c++)
- {
- RRCrtcPtr crtc = pScrPriv->crtcs[c];
- RRModePtr mode = crtc->mode;
- int n;
-
- if (!mode) continue;
- for (n = 0; n < num_screen_modes; n++)
- if (screen_modes[n] == mode)
- break;
- if (n == num_screen_modes)
- screen_modes[num_screen_modes++] = mode;
- }
- /*
- * Add all user modes for this screen
- */
- for (m = 0; m < num_modes; m++)
- {
- RRModePtr mode = modes[m];
- int n;
-
- if (mode->userScreen != pScreen)
- continue;
- for (n = 0; n < num_screen_modes; n++)
- if (screen_modes[n] == mode)
- break;
- if (n == num_screen_modes)
- screen_modes[num_screen_modes++] = mode;
- }
-
- *num_ret = num_screen_modes;
- return screen_modes;
-}
-
-void
-RRModeDestroy (RRModePtr mode)
-{
- int m;
-
- if (--mode->refcnt > 0)
- return;
- for (m = 0; m < num_modes; m++)
- {
- if (modes[m] == mode)
- {
- memmove (modes + m, modes + m + 1,
- (num_modes - m - 1) * sizeof (RRModePtr));
- num_modes--;
- if (!num_modes)
- {
- free(modes);
- modes = NULL;
- }
- break;
- }
- }
-
- free(mode);
-}
-
-static int
-RRModeDestroyResource (pointer value, XID pid)
-{
- RRModeDestroy ((RRModePtr) value);
- return 1;
-}
-
-/*
- * Initialize mode type
- */
-Bool
-RRModeInit (void)
-{
- assert (num_modes == 0);
- assert (modes == NULL);
- RRModeType = CreateNewResourceType (RRModeDestroyResource, "MODE");
- if (!RRModeType)
- return FALSE;
-
- return TRUE;
-}
-
-/*
- * Initialize mode type error value
- */
-void
-RRModeInitErrorValue(void)
-{
- SetResourceTypeErrorValue(RRModeType, RRErrorBase + BadRRMode);
-}
-
-int
-ProcRRCreateMode (ClientPtr client)
-{
- REQUEST(xRRCreateModeReq);
- xRRCreateModeReply rep = {0};
- WindowPtr pWin;
- ScreenPtr pScreen;
- rrScrPrivPtr pScrPriv;
- xRRModeInfo *modeInfo;
- long units_after;
- char *name;
- int error, rc;
- RRModePtr mode;
-
- REQUEST_AT_LEAST_SIZE (xRRCreateModeReq);
- rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- pScreen = pWin->drawable.pScreen;
- pScrPriv = rrGetScrPriv(pScreen);
-
- modeInfo = &stuff->modeInfo;
- name = (char *) (stuff + 1);
- units_after = (stuff->length - bytes_to_int32(sizeof (xRRCreateModeReq)));
-
- /* check to make sure requested name fits within the data provided */
- if (bytes_to_int32(modeInfo->nameLength) > units_after)
- return BadLength;
-
- mode = RRModeCreateUser (pScreen, modeInfo, name, &error);
- if (!mode)
- return error;
-
- rep.type = X_Reply;
- rep.pad0 = 0;
- rep.sequenceNumber = client->sequence;
- rep.length = 0;
- rep.mode = mode->mode.id;
- if (client->swapped)
- {
- int n;
- swaps(&rep.sequenceNumber, n);
- swapl(&rep.length, n);
- swapl(&rep.mode, n);
- }
- WriteToClient(client, sizeof(xRRCreateModeReply), (char *)&rep);
- /* Drop out reference to this mode */
- RRModeDestroy (mode);
- return Success;
-}
-
-int
-ProcRRDestroyMode (ClientPtr client)
-{
- REQUEST(xRRDestroyModeReq);
- RRModePtr mode;
-
- REQUEST_SIZE_MATCH(xRRDestroyModeReq);
- VERIFY_RR_MODE(stuff->mode, mode, DixDestroyAccess);
-
- if (!mode->userScreen)
- return BadMatch;
- if (mode->refcnt > 1)
- return BadAccess;
- FreeResource (stuff->mode, 0);
- return Success;
-}
-
-int
-ProcRRAddOutputMode (ClientPtr client)
-{
- REQUEST(xRRAddOutputModeReq);
- RRModePtr mode;
- RROutputPtr output;
-
- REQUEST_SIZE_MATCH(xRRAddOutputModeReq);
- VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
- VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
-
- return RROutputAddUserMode (output, mode);
-}
-
-int
-ProcRRDeleteOutputMode (ClientPtr client)
-{
- REQUEST(xRRDeleteOutputModeReq);
- RRModePtr mode;
- RROutputPtr output;
-
- REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);
- VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
- VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
-
- return RROutputDeleteUserMode (output, mode);
-}
+/*
+ * 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;
+}
+
+/*
+ * Keep a list so it's easy to find modes in the resource database.
+ */
+static int num_modes;
+static RRModePtr *modes;
+
+static RRModePtr
+RRModeCreate (xRRModeInfo *modeInfo,
+ const char *name,
+ ScreenPtr userScreen)
+{
+ RRModePtr mode, *newModes;
+
+ if (!RRInit ())
+ return NULL;
+
+ mode = malloc(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->userScreen = userScreen;
+
+ if (num_modes)
+ newModes = realloc(modes, (num_modes + 1) * sizeof (RRModePtr));
+ else
+ newModes = malloc(sizeof (RRModePtr));
+
+ if (!newModes)
+ {
+ free(mode);
+ return NULL;
+ }
+
+ mode->mode.id = FakeClientID(0);
+ if (!AddResource (mode->mode.id, RRModeType, (pointer) mode))
+ return NULL;
+ modes = newModes;
+ modes[num_modes++] = mode;
+
+ /*
+ * give the caller a reference to this mode
+ */
+ ++mode->refcnt;
+ return mode;
+}
+
+static RRModePtr
+RRModeFindByName (const char *name,
+ CARD16 nameLength)
+{
+ int i;
+ RRModePtr mode;
+
+ for (i = 0; i < num_modes; i++)
+ {
+ mode = modes[i];
+ if (mode->mode.nameLength == nameLength &&
+ !memcmp (name, mode->name, nameLength))
+ {
+ return mode;
+ }
+ }
+ return NULL;
+}
+
+RRModePtr
+RRModeGet (xRRModeInfo *modeInfo,
+ const char *name)
+{
+ int i;
+
+ for (i = 0; i < num_modes; i++)
+ {
+ RRModePtr mode = modes[i];
+ if (RRModeEqual (&mode->mode, modeInfo) &&
+ !memcmp (name, mode->name, modeInfo->nameLength))
+ {
+ ++mode->refcnt;
+ return mode;
+ }
+ }
+
+ return RRModeCreate (modeInfo, name, NULL);
+}
+
+static RRModePtr
+RRModeCreateUser (ScreenPtr pScreen,
+ xRRModeInfo *modeInfo,
+ const char *name,
+ int *error)
+{
+ RRModePtr mode;
+
+ mode = RRModeFindByName (name, modeInfo->nameLength);
+ if (mode)
+ {
+ *error = BadName;
+ return NULL;
+ }
+
+ mode = RRModeCreate (modeInfo, name, pScreen);
+ if (!mode)
+ {
+ *error = BadAlloc;
+ return NULL;
+ }
+ *error = Success;
+ return mode;
+}
+
+RRModePtr *
+RRModesForScreen (ScreenPtr pScreen, int *num_ret)
+{
+ rrScrPriv(pScreen);
+ int o, c, m;
+ RRModePtr *screen_modes;
+ int num_screen_modes = 0;
+
+ screen_modes = malloc((num_modes ? num_modes : 1) * sizeof (RRModePtr));
+ if (!screen_modes)
+ return NULL;
+
+ /*
+ * Add modes from all outputs
+ */
+ for (o = 0; o < pScrPriv->numOutputs; o++)
+ {
+ RROutputPtr output = pScrPriv->outputs[o];
+ int m, n;
+
+ for (m = 0; m < output->numModes + output->numUserModes; m++)
+ {
+ RRModePtr mode = (m < output->numModes ?
+ output->modes[m] :
+ output->userModes[m-output->numModes]);
+ for (n = 0; n < num_screen_modes; n++)
+ if (screen_modes[n] == mode)
+ break;
+ if (n == num_screen_modes)
+ screen_modes[num_screen_modes++] = mode;
+ }
+ }
+ /*
+ * Add modes from all crtcs. The goal is to
+ * make sure all available and active modes
+ * are visible to the client
+ */
+ for (c = 0; c < pScrPriv->numCrtcs; c++)
+ {
+ RRCrtcPtr crtc = pScrPriv->crtcs[c];
+ RRModePtr mode = crtc->mode;
+ int n;
+
+ if (!mode) continue;
+ for (n = 0; n < num_screen_modes; n++)
+ if (screen_modes[n] == mode)
+ break;
+ if (n == num_screen_modes)
+ screen_modes[num_screen_modes++] = mode;
+ }
+ /*
+ * Add all user modes for this screen
+ */
+ for (m = 0; m < num_modes; m++)
+ {
+ RRModePtr mode = modes[m];
+ int n;
+
+ if (mode->userScreen != pScreen)
+ continue;
+ for (n = 0; n < num_screen_modes; n++)
+ if (screen_modes[n] == mode)
+ break;
+ if (n == num_screen_modes)
+ screen_modes[num_screen_modes++] = mode;
+ }
+
+ *num_ret = num_screen_modes;
+ return screen_modes;
+}
+
+void
+RRModeDestroy (RRModePtr mode)
+{
+ int m;
+
+ if (--mode->refcnt > 0)
+ return;
+ for (m = 0; m < num_modes; m++)
+ {
+ if (modes[m] == mode)
+ {
+ memmove (modes + m, modes + m + 1,
+ (num_modes - m - 1) * sizeof (RRModePtr));
+ num_modes--;
+ if (!num_modes)
+ {
+ free(modes);
+ modes = NULL;
+ }
+ break;
+ }
+ }
+
+ free(mode);
+}
+
+static int
+RRModeDestroyResource (pointer value, XID pid)
+{
+ RRModeDestroy ((RRModePtr) value);
+ return 1;
+}
+
+/*
+ * Initialize mode type
+ */
+Bool
+RRModeInit (void)
+{
+ assert (num_modes == 0);
+ assert (modes == NULL);
+ RRModeType = CreateNewResourceType (RRModeDestroyResource, "MODE");
+ if (!RRModeType)
+ return FALSE;
+
+ return TRUE;
+}
+
+/*
+ * Initialize mode type error value
+ */
+void
+RRModeInitErrorValue(void)
+{
+ SetResourceTypeErrorValue(RRModeType, RRErrorBase + BadRRMode);
+}
+
+int
+ProcRRCreateMode (ClientPtr client)
+{
+ REQUEST(xRRCreateModeReq);
+ xRRCreateModeReply rep = {0};
+ WindowPtr pWin;
+ ScreenPtr pScreen;
+ rrScrPrivPtr pScrPriv;
+ xRRModeInfo *modeInfo;
+ long units_after;
+ char *name;
+ int error, rc;
+ RRModePtr mode;
+
+ REQUEST_AT_LEAST_SIZE (xRRCreateModeReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ pScreen = pWin->drawable.pScreen;
+ pScrPriv = rrGetScrPriv(pScreen);
+
+ modeInfo = &stuff->modeInfo;
+ name = (char *) (stuff + 1);
+ units_after = (stuff->length - bytes_to_int32(sizeof (xRRCreateModeReq)));
+
+ /* check to make sure requested name fits within the data provided */
+ if (bytes_to_int32(modeInfo->nameLength) > units_after)
+ return BadLength;
+
+ mode = RRModeCreateUser (pScreen, modeInfo, name, &error);
+ if (!mode)
+ return error;
+
+ rep.type = X_Reply;
+ rep.pad0 = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.length = 0;
+ rep.mode = mode->mode.id;
+ if (client->swapped)
+ {
+ swaps(&rep.sequenceNumber);
+ swapl(&rep.length);
+ swapl(&rep.mode);
+ }
+ WriteToClient(client, sizeof(xRRCreateModeReply), (char *)&rep);
+ /* Drop out reference to this mode */
+ RRModeDestroy (mode);
+ return Success;
+}
+
+int
+ProcRRDestroyMode (ClientPtr client)
+{
+ REQUEST(xRRDestroyModeReq);
+ RRModePtr mode;
+
+ REQUEST_SIZE_MATCH(xRRDestroyModeReq);
+ VERIFY_RR_MODE(stuff->mode, mode, DixDestroyAccess);
+
+ if (!mode->userScreen)
+ return BadMatch;
+ if (mode->refcnt > 1)
+ return BadAccess;
+ FreeResource (stuff->mode, 0);
+ return Success;
+}
+
+int
+ProcRRAddOutputMode (ClientPtr client)
+{
+ REQUEST(xRRAddOutputModeReq);
+ RRModePtr mode;
+ RROutputPtr output;
+
+ REQUEST_SIZE_MATCH(xRRAddOutputModeReq);
+ VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
+ VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
+
+ return RROutputAddUserMode (output, mode);
+}
+
+int
+ProcRRDeleteOutputMode (ClientPtr client)
+{
+ REQUEST(xRRDeleteOutputModeReq);
+ RRModePtr mode;
+ RROutputPtr output;
+
+ REQUEST_SIZE_MATCH(xRRDeleteOutputModeReq);
+ VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
+ VERIFY_RR_MODE(stuff->mode, mode, DixUseAccess);
+
+ return RROutputDeleteUserMode (output, mode);
+}