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452 lines
11 KiB
C
452 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, Bool configChanged)
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{
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ScreenPtr pScreen = output->pScreen;
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output->changed = TRUE;
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if (pScreen) {
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rrScrPriv(pScreen);
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pScrPriv->changed = TRUE;
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if (configChanged)
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pScrPriv->configChanged = TRUE;
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}
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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(const char *name, int nameLength, void *devPrivate)
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{
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RROutputPtr output;
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if (!RRInit())
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return NULL;
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output = malloc(sizeof(RROutputRec) + nameLength + 1);
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if (!output)
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return NULL;
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output->id = FakeClientID(0);
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output->pScreen = NULL;
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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->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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return output;
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}
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/*
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* Attach an Output to a screen. This is done as a separate step
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* so that an xf86-based driver can create Outputs in PreInit
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* before the Screen has been created
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*/
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Bool
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RROutputAttachScreen(RROutputPtr output, ScreenPtr pScreen)
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{
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rrScrPriv(pScreen);
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RROutputPtr *outputs;
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if (pScrPriv->numOutputs)
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outputs = realloc(pScrPriv->outputs,
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(pScrPriv->numOutputs + 1) * sizeof(RROutputPtr));
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else
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outputs = malloc(sizeof(RROutputPtr));
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if (!outputs)
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return FALSE;
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output->pScreen = pScreen;
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pScrPriv->outputs = outputs;
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pScrPriv->outputs[pScrPriv->numOutputs++] = output;
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RROutputChanged(output, FALSE);
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return TRUE;
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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, RROutputPtr * clones, 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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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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newClones = malloc(numClones * sizeof(RROutputPtr));
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if (!newClones)
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return FALSE;
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memcpy(newClones, clones, numClones * sizeof(RROutputPtr));
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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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free(output->clones);
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output->clones = newClones;
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output->numClones = numClones;
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RROutputChanged(output, TRUE);
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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, int numModes, 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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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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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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newModes = malloc(numModes * sizeof(RRModePtr));
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if (!newModes)
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return FALSE;
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memcpy(newModes, modes, numModes * sizeof(RRModePtr));
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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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for (i = 0; i < output->numModes; i++)
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RRModeDestroy(output->modes[i]);
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free(output->modes);
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}
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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, TRUE);
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return TRUE;
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}
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Bool
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RROutputSetCrtcs(RROutputPtr output, RRCrtcPtr * crtcs, 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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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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newCrtcs = malloc(numCrtcs * sizeof(RRCrtcPtr));
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if (!newCrtcs)
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return FALSE;
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memcpy(newCrtcs, crtcs, numCrtcs * sizeof(RRCrtcPtr));
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}
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else
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newCrtcs = NULL;
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free(output->crtcs);
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output->crtcs = newCrtcs;
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output->numCrtcs = numCrtcs;
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RROutputChanged(output, TRUE);
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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, FALSE);
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}
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Bool
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RROutputSetConnection(RROutputPtr output, 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, TRUE);
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return TRUE;
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}
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Bool
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RROutputSetSubpixelOrder(RROutputPtr output, 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, FALSE);
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return TRUE;
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}
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Bool
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RROutputSetPhysicalSize(RROutputPtr output, int mmWidth, 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, FALSE);
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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.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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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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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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if (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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if (pScrPriv->outputs[i] == output) {
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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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}
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if (output->modes)
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free(output->modes);
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if (output->crtcs)
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free(output->crtcs);
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if (output->clones)
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free(output->clones);
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RRDeleteAllOutputProperties(output);
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free(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;
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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.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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extraLen = ((output->numCrtcs +
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output->numModes +
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output->numClones + ((rep.nameLength + 3) >> 2)) << 2);
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if (extraLen) {
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rep.length += extraLen >> 2;
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extra = malloc(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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crtcs[i] = output->crtcs[i]->id;
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if (client->swapped)
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swapl(&crtcs[i]);
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}
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for (i = 0; i < output->numModes; i++) {
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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]);
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}
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for (i = 0; i < output->numClones; i++) {
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clones[i] = output->clones[i]->id;
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if (client->swapped)
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swapl(&clones[i]);
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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);
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swapl(&rep.length);
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swapl(&rep.timestamp);
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swapl(&rep.crtc);
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swapl(&rep.mmWidth);
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swapl(&rep.mmHeight);
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swaps(&rep.nCrtcs);
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swaps(&rep.nModes);
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swaps(&rep.nClones);
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swaps(&rep.nameLength);
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}
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WriteToClient(client, sizeof(xRRGetOutputInfoReply), (char *) &rep);
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if (extraLen) {
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WriteToClient(client, extraLen, (char *) extra);
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free(extra);
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}
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return client->noClientException;
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}
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