Split RandR implementation into separate files.
RandR is getting too big to live in one file; split into one file per object type (crtc, mode, screen), leaving the rest of the code in randr.c. Code is slowly approaching the point where it will drop-in as a replacement for the old 1.0 implementation.
This commit is contained in:
Keith Packard
238
randr/rrcrtc.c
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238
randr/rrcrtc.c
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/*
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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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static RESTYPE CrtcType;
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/*
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* Create a CRTC
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*/
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RRCrtcPtr
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RRCrtcCreate (ScreenPtr pScreen,
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void *devPrivate)
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{
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rrScrPriv (pScreen);
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RRCrtcPtr crtc;
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RRCrtcPtr *crtcs;
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crtc = xalloc (sizeof (RRCrtcRec));
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if (!crtc)
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return NULL;
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if (pScrPriv->numCrtcs)
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crtcs = xrealloc (pScrPriv->crtcs,
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(pScrPriv->numCrtcs + 1) * sizeof (RRCrtcPtr));
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else
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crtcs = xalloc (sizeof (RRCrtcPtr));
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if (!crtcs)
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{
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xfree (crtc);
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return NULL;
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}
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crtc->id = FakeClientID (0);
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crtc->pScreen = pScreen;
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crtc->mode = NULL;
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crtc->x = 0;
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crtc->y = 0;
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crtc->rotation = RR_Rotate_0;
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crtc->rotations = RR_Rotate_0;
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crtc->outputs = NULL;
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crtc->numOutputs = 0;
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crtc->changed = TRUE;
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crtc->devPrivate = devPrivate;
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pScrPriv->crtcs[pScrPriv->numCrtcs++] = crtc;
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return crtc;
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}
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/*
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* Notify the extension that the Crtc has been reconfigured,
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* the driver calls this whenever it has updated the mode
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*/
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Bool
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RRCrtcNotify (RRCrtcPtr crtc,
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RRModePtr mode,
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int x,
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int y,
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Rotation rotation,
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int numOutputs,
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RROutputPtr *outputs)
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{
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ScreenPtr pScreen = crtc->pScreen;
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rrScrPriv(pScreen);
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int i, j;
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int prevNumOutputs = crtc->numOutputs;
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if (numOutputs != prevNumOutputs)
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{
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RROutputPtr *outputs;
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if (crtc->numOutputs)
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outputs = xrealloc (crtc->outputs,
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numOutputs * sizeof (RROutputPtr));
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else
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outputs = xalloc (numOutputs * sizeof (RROutputPtr));
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if (!outputs)
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return FALSE;
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crtc->outputs = outputs;
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}
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for (i = 0; i < numOutputs; i++)
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{
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for (j = 0; j < crtc->numOutputs; j++)
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if (outputs[i] == crtc->outputs[j])
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break;
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if (j != crtc->numOutputs)
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{
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outputs[i]->changed = TRUE;
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crtc->changed = TRUE;
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}
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}
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for (j = 0; j < crtc->numOutputs; j++)
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{
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for (i = 0; i < numOutputs; i++)
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if (outputs[i] == crtc->outputs[j])
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break;
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if (i != numOutputs)
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{
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crtc->outputs[j]->changed = TRUE;
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crtc->changed = TRUE;
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}
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}
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if (mode != crtc->mode)
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{
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if (crtc->mode)
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RRModeDestroy (crtc->mode);
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crtc->mode = mode;
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mode->refcnt++;
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crtc->changed = TRUE;
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}
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if (x != crtc->x)
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{
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crtc->x = x;
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crtc->changed = TRUE;
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}
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if (y != crtc->y)
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{
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crtc->y = y;
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crtc->changed = TRUE;
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}
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if (rotation != crtc->rotation)
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{
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crtc->rotation = rotation;
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crtc->changed = TRUE;
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}
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if (crtc->changed)
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pScrPriv->changed = TRUE;
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return TRUE;
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}
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/*
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* Request that the Crtc be reconfigured
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*/
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Bool
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RRCrtcSet (RRCrtcPtr crtc,
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RRModePtr mode,
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int x,
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int y,
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Rotation rotation,
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int numOutputs,
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RROutputPtr *outputs)
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{
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ScreenPtr pScreen = crtc->pScreen;
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rrScrPriv(pScreen);
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#if RANDR_12_INTERFACE
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if (pScrPriv->rrCrtcSet)
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{
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return (*pScrPriv->rrCrtcSet) (pScreen, crtc, mode, x, y,
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rotation, numOutputs, outputs);
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}
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#endif
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#if RANDR_10_INTERFACE
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if (pScrPriv->rrSetConfig)
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{
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RRScreenSize size;
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RRScreenRate rate;
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Bool ret;
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size.width = mode->mode.width;
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size.height = mode->mode.height;
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size.mmWidth = mode->mode.mmWidth;
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size.mmHeight = mode->mode.mmHeight;
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size.nRates = 1;
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rate.rate = RRVerticalRefresh (&mode->mode);
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size.pRates = &rate;
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ret = (*pScrPriv->rrSetConfig) (pScreen, rotation, rate.rate, &size);
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/*
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* Old 1.0 interface tied screen size to mode size
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*/
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if (ret)
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RRScreenSizeNotify (pScreen);
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return ret;
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}
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#endif
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return FALSE;
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}
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/*
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* Destroy a Crtc at shutdown
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*/
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void
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RRCrtcDestroy (RRCrtcPtr 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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RRCrtcDestroyResource (pointer value, XID pid)
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{
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RRCrtcPtr crtc = (RRCrtcPtr) value;
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ScreenPtr pScreen = crtc->pScreen;
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rrScrPriv(pScreen);
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int i;
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for (i = 0; i < pScrPriv->numCrtcs; i++)
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{
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if (pScrPriv->crtcs[i] == crtc)
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{
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memmove (pScrPriv->crtcs, pScrPriv->crtcs + 1,
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(pScrPriv->numCrtcs - (i - 1)) * sizeof (RRCrtcPtr));
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--pScrPriv->numCrtcs;
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}
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}
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free (value);
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return 1;
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}
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/*
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* Initialize crtc type
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*/
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Bool
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RRCrtcInit (void)
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{
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CrtcType = CreateNewResourceType (RRCrtcDestroyResource);
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if (!CrtcType)
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return FALSE;
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#ifdef XResExtension
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RegisterResourceName (CrtcType, "CRTC");
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#endif
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return TRUE;
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}
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