4056e6e79a
Modes can be shared across different sized monitors this way. Also caught some missing byteswapping and an incorrect return type.
475 lines
11 KiB
C
475 lines
11 KiB
C
/*
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* Copyright © 2006 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "randrstr.h"
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RESTYPE RROutputType;
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/*
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* Notify the output of some change
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*/
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void
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RROutputChanged (RROutputPtr output)
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{
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ScreenPtr pScreen = output->pScreen;
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rrScrPriv (pScreen);
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output->changed = TRUE;
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pScrPriv->changed = TRUE;
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}
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/*
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* Create an output
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*/
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RROutputPtr
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RROutputCreate (ScreenPtr pScreen,
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const char *name,
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int nameLength,
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void *devPrivate)
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{
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rrScrPriv (pScreen);
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RROutputPtr output;
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RROutputPtr *outputs;
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output = xalloc (sizeof (RROutputRec) + nameLength + 1);
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if (!output)
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return NULL;
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if (pScrPriv->numOutputs)
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outputs = xrealloc (pScrPriv->outputs,
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(pScrPriv->numOutputs + 1) * sizeof (RROutputPtr));
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else
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outputs = xalloc (sizeof (RROutputPtr));
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if (!outputs)
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{
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xfree (output);
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return NULL;
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}
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output->id = FakeClientID (0);
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output->pScreen = pScreen;
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output->name = (char *) (output + 1);
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output->nameLength = nameLength;
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memcpy (output->name, name, nameLength);
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output->name[nameLength] = '\0';
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output->connection = RR_UnknownConnection;
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output->subpixelOrder = SubPixelUnknown;
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output->mmWidth = 0;
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output->mmHeight = 0;
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output->crtc = NULL;
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output->currentOptions = 0;
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output->possibleOptions = 0;
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output->numCrtcs = 0;
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output->crtcs = NULL;
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output->numClones = 0;
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output->clones = NULL;
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output->numModes = 0;
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output->numPreferred = 0;
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output->modes = NULL;
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output->properties = NULL;
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output->changed = FALSE;
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output->devPrivate = devPrivate;
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if (!AddResource (output->id, RROutputType, (pointer) output))
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return NULL;
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pScrPriv->outputs = outputs;
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pScrPriv->outputs[pScrPriv->numOutputs++] = output;
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RROutputChanged (output);
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return output;
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}
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/*
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* Notify extension that output parameters have been changed
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*/
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Bool
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RROutputSetClones (RROutputPtr output,
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RROutputPtr *clones,
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int numClones)
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{
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RROutputPtr *newClones;
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int i;
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if (numClones == output->numClones)
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{
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for (i = 0; i < numClones; i++)
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if (output->clones[i] != clones[i])
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break;
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if (i == numClones)
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return TRUE;
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}
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if (numClones)
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{
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newClones = xalloc (numClones * sizeof (RROutputPtr));
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if (!newClones)
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return FALSE;
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}
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else
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newClones = NULL;
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if (output->clones)
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xfree (output->clones);
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memcpy (newClones, clones, numClones * sizeof (RROutputPtr));
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output->clones = newClones;
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output->numClones = numClones;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetModes (RROutputPtr output,
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RRModePtr *modes,
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int numModes,
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int numPreferred)
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{
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RRModePtr *newModes;
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int i;
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if (numModes == output->numModes && numPreferred == output->numPreferred)
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{
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for (i = 0; i < numModes; i++)
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if (output->modes[i] != modes[i])
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break;
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if (i == numModes)
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{
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for (i = 0; i < numModes; i++)
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RRModeDestroy (modes[i]);
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return TRUE;
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}
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}
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if (numModes)
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{
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newModes = xalloc (numModes * sizeof (RRModePtr));
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if (!newModes)
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return FALSE;
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}
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else
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newModes = NULL;
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if (output->modes)
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{
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for (i = 0; i < output->numModes; i++)
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RRModeDestroy (output->modes[i]);
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xfree (output->modes);
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}
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memcpy (newModes, modes, numModes * sizeof (RRModePtr));
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output->modes = newModes;
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output->numModes = numModes;
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output->numPreferred = numPreferred;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetCrtcs (RROutputPtr output,
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RRCrtcPtr *crtcs,
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int numCrtcs)
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{
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RRCrtcPtr *newCrtcs;
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int i;
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if (numCrtcs == output->numCrtcs)
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{
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for (i = 0; i < numCrtcs; i++)
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if (output->crtcs[i] != crtcs[i])
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break;
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if (i == numCrtcs)
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return TRUE;
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}
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if (numCrtcs)
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{
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newCrtcs = xalloc (numCrtcs * sizeof (RRCrtcPtr));
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if (!newCrtcs)
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return FALSE;
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}
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else
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newCrtcs = NULL;
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if (output->crtcs)
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xfree (output->crtcs);
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memcpy (newCrtcs, crtcs, numCrtcs * sizeof (RRCrtcPtr));
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output->crtcs = newCrtcs;
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output->numCrtcs = numCrtcs;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetPossibleOptions (RROutputPtr output,
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CARD32 possibleOptions)
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{
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if (output->possibleOptions == possibleOptions)
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return TRUE;
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output->possibleOptions = possibleOptions;
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RROutputChanged (output);
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return TRUE;
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}
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void
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RROutputSetCrtc (RROutputPtr output, RRCrtcPtr crtc)
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{
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if (output->crtc == crtc)
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return;
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output->crtc = crtc;
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RROutputChanged (output);
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}
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Bool
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RROutputSetConnection (RROutputPtr output,
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CARD8 connection)
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{
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if (output->connection == connection)
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return TRUE;
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output->connection = connection;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetSubpixelOrder (RROutputPtr output,
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int subpixelOrder)
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{
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if (output->subpixelOrder == subpixelOrder)
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return TRUE;
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output->subpixelOrder = subpixelOrder;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetCurrentOptions (RROutputPtr output,
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CARD32 currentOptions)
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{
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if (output->currentOptions == currentOptions)
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return TRUE;
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output->currentOptions = currentOptions;
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RROutputChanged (output);
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return TRUE;
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}
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Bool
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RROutputSetPhysicalSize (RROutputPtr output,
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int mmWidth,
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int mmHeight)
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{
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if (output->mmWidth == mmWidth && output->mmHeight == mmHeight)
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return TRUE;
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output->mmWidth = mmWidth;
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output->mmHeight = mmHeight;
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RROutputChanged (output);
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return TRUE;
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}
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void
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RRDeliverOutputEvent(ClientPtr client, WindowPtr pWin, RROutputPtr output)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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rrScrPriv (pScreen);
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xRROutputChangeNotifyEvent oe;
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RRCrtcPtr crtc = output->crtc;
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RRModePtr mode = crtc ? crtc->mode : 0;
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oe.type = RRNotify + RREventBase;
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oe.subCode = RRNotify_OutputChange;
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oe.sequenceNumber = client->sequence;
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oe.timestamp = pScrPriv->lastSetTime.milliseconds;
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oe.configTimestamp = pScrPriv->lastConfigTime.milliseconds;
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oe.window = pWin->drawable.id;
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oe.output = output->id;
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if (crtc)
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{
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oe.crtc = crtc->id;
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oe.mode = mode ? mode->mode.id : None;
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oe.rotation = crtc->rotation;
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}
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else
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{
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oe.crtc = None;
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oe.mode = None;
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oe.rotation = RR_Rotate_0;
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}
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oe.connection = output->connection;
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oe.subpixelOrder = output->subpixelOrder;
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WriteEventsToClient (client, 1, (xEvent *) &oe);
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}
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/*
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* Destroy a Output at shutdown
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*/
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void
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RROutputDestroy (RROutputPtr crtc)
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{
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FreeResource (crtc->id, 0);
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}
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static int
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RROutputDestroyResource (pointer value, XID pid)
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{
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RROutputPtr output = (RROutputPtr) value;
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ScreenPtr pScreen = output->pScreen;
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rrScrPriv(pScreen);
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int i;
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for (i = 0; i < pScrPriv->numOutputs; i++)
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{
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if (pScrPriv->outputs[i] == output)
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{
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memmove (pScrPriv->outputs + i, pScrPriv->outputs + i + 1,
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(pScrPriv->numOutputs - (i - 1)) * sizeof (RROutputPtr));
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--pScrPriv->numOutputs;
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break;
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}
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}
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if (output->modes)
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xfree (output->modes);
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if (output->crtcs)
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xfree (output->crtcs);
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if (output->clones)
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xfree (output->clones);
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RRDeleteAllOutputProperties (output);
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xfree (output);
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return 1;
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}
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/*
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* Initialize output type
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*/
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Bool
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RROutputInit (void)
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{
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RROutputType = CreateNewResourceType (RROutputDestroyResource);
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if (!RROutputType)
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return FALSE;
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#ifdef XResExtension
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RegisterResourceName (RROutputType, "OUTPUT");
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#endif
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return TRUE;
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}
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#define OutputInfoExtra (SIZEOF(xRRGetOutputInfoReply) - 32)
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int
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ProcRRGetOutputInfo (ClientPtr client)
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{
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REQUEST(xRRGetOutputInfoReq);;
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xRRGetOutputInfoReply rep;
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RROutputPtr output;
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CARD8 *extra;
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unsigned long extraLen;
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ScreenPtr pScreen;
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rrScrPrivPtr pScrPriv;
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RRCrtc *crtcs;
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RRMode *modes;
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RROutput *clones;
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char *name;
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int i, n;
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REQUEST_SIZE_MATCH(xRRGetOutputInfoReq);
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output = LookupOutput(client, stuff->output, SecurityReadAccess);
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if (!output)
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return RRErrorBase + BadRROutput;
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pScreen = output->pScreen;
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pScrPriv = rrGetScrPriv(pScreen);
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rep.type = X_Reply;
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rep.sequenceNumber = client->sequence;
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rep.length = OutputInfoExtra >> 2;
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rep.timestamp = pScrPriv->lastSetTime.milliseconds;
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rep.crtc = output->crtc ? output->crtc->id : None;
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rep.currentOptions = output->currentOptions;
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rep.mmWidth = output->mmWidth;
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rep.mmHeight = output->mmHeight;
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rep.connection = output->connection;
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rep.subpixelOrder = output->subpixelOrder;
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rep.nCrtcs = output->numCrtcs;
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rep.nModes = output->numModes;
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rep.nPreferred = output->numPreferred;
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rep.nClones = output->numClones;
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rep.nameLength = output->nameLength;
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rep.possibleOptions = output->possibleOptions;
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extraLen = ((output->numCrtcs +
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output->numModes +
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output->numClones +
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((rep.nameLength + 3) >> 2)) << 2);
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if (extraLen)
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{
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rep.length += extraLen >> 2;
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extra = xalloc (extraLen);
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if (!extra)
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return BadAlloc;
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}
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else
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extra = NULL;
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crtcs = (RRCrtc *) extra;
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modes = (RRMode *) (crtcs + output->numCrtcs);
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clones = (RROutput *) (modes + output->numModes);
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name = (char *) (clones + output->numClones);
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for (i = 0; i < output->numCrtcs; i++)
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{
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crtcs[i] = output->crtcs[i]->id;
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if (client->swapped)
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swapl (&crtcs[i], n);
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}
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for (i = 0; i < output->numModes; i++)
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{
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modes[i] = output->modes[i]->mode.id;
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if (client->swapped)
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swapl (&modes[i], n);
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}
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for (i = 0; i < output->numClones; i++)
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{
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clones[i] = output->clones[i]->id;
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if (client->swapped)
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swapl (&clones[i], n);
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}
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memcpy (name, output->name, output->nameLength);
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if (client->swapped) {
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.timestamp, n);
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swapl(&rep.crtc, n);
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swapl(&rep.currentOptions, n);
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swapl(&rep.mmWidth, n);
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swapl(&rep.mmHeight, n);
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swaps(&rep.nCrtcs, n);
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swaps(&rep.nModes, n);
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swaps(&rep.nClones, n);
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swapl(&rep.possibleOptions, n);
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swaps(&rep.nameLength, n);
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swapl(&rep.possibleOptions, n);
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}
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WriteToClient(client, sizeof(xRRGetOutputInfoReply), (char *)&rep);
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if (extraLen)
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{
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WriteToClient (client, extraLen, (char *) extra);
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xfree (extra);
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}
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return client->noClientException;
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}
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