325 lines
8.8 KiB
C
325 lines
8.8 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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#ifdef RANDR_10_INTERFACE
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static RRModePtr
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RROldModeAdd(RROutputPtr output, RRScreenSizePtr size, int refresh)
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{
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ScreenPtr pScreen = output->pScreen;
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rrScrPriv(pScreen);
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xRRModeInfo modeInfo;
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char name[100];
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RRModePtr mode;
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int i;
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RRModePtr *modes;
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memset(&modeInfo, '\0', sizeof(modeInfo));
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snprintf(name, sizeof(name), "%dx%d", size->width, size->height);
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modeInfo.width = size->width;
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modeInfo.height = size->height;
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modeInfo.hTotal = size->width;
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modeInfo.vTotal = size->height;
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modeInfo.dotClock = ((CARD32) size->width * (CARD32) size->height *
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(CARD32) refresh);
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modeInfo.nameLength = strlen(name);
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mode = RRModeGet(&modeInfo, name);
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if (!mode)
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return NULL;
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for (i = 0; i < output->numModes; i++)
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if (output->modes[i] == mode) {
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RRModeDestroy(mode);
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return mode;
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}
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if (output->numModes)
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modes = reallocarray(output->modes,
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output->numModes + 1, sizeof(RRModePtr));
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else
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modes = malloc(sizeof(RRModePtr));
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if (!modes) {
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RRModeDestroy(mode);
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FreeResource(mode->mode.id, 0);
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return NULL;
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}
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modes[output->numModes++] = mode;
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output->modes = modes;
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output->changed = TRUE;
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pScrPriv->changed = TRUE;
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pScrPriv->configChanged = TRUE;
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return mode;
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}
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static void
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RRScanOldConfig(ScreenPtr pScreen, Rotation rotations)
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{
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rrScrPriv(pScreen);
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RROutputPtr output;
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RRCrtcPtr crtc;
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RRModePtr mode, newMode = NULL;
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int i;
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CARD16 minWidth = MAXSHORT, minHeight = MAXSHORT;
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CARD16 maxWidth = 0, maxHeight = 0;
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CARD16 width, height;
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/*
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* First time through, create a crtc and output and hook
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* them together
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*/
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if (pScrPriv->numOutputs == 0 && pScrPriv->numCrtcs == 0) {
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crtc = RRCrtcCreate(pScreen, NULL);
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if (!crtc)
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return;
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output = RROutputCreate(pScreen, "default", 7, NULL);
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if (!output)
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return;
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RROutputSetCrtcs(output, &crtc, 1);
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RROutputSetConnection(output, RR_Connected);
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RROutputSetSubpixelOrder(output, PictureGetSubpixelOrder(pScreen));
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}
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output = pScrPriv->outputs[0];
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if (!output)
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return;
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crtc = pScrPriv->crtcs[0];
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if (!crtc)
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return;
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/* check rotations */
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if (rotations != crtc->rotations) {
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crtc->rotations = rotations;
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crtc->changed = TRUE;
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pScrPriv->changed = TRUE;
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}
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/* regenerate mode list */
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for (i = 0; i < pScrPriv->nSizes; i++) {
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RRScreenSizePtr size = &pScrPriv->pSizes[i];
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int r;
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if (size->nRates) {
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for (r = 0; r < size->nRates; r++) {
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mode = RROldModeAdd(output, size, size->pRates[r].rate);
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if (i == pScrPriv->size &&
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size->pRates[r].rate == pScrPriv->rate) {
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newMode = mode;
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}
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}
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free(size->pRates);
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}
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else {
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mode = RROldModeAdd(output, size, 0);
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if (i == pScrPriv->size)
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newMode = mode;
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}
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}
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if (pScrPriv->nSizes)
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free(pScrPriv->pSizes);
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pScrPriv->pSizes = NULL;
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pScrPriv->nSizes = 0;
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/* find size bounds */
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for (i = 0; i < output->numModes + output->numUserModes; i++) {
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mode = (i < output->numModes ?
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output->modes[i] :
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output->userModes[i - output->numModes]);
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width = mode->mode.width;
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height = mode->mode.height;
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if (width < minWidth)
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minWidth = width;
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if (width > maxWidth)
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maxWidth = width;
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if (height < minHeight)
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minHeight = height;
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if (height > maxHeight)
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maxHeight = height;
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}
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RRScreenSetSizeRange(pScreen, minWidth, minHeight, maxWidth, maxHeight);
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/* notice current mode */
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if (newMode)
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RRCrtcNotify(crtc, newMode, 0, 0, pScrPriv->rotation, NULL, 1, &output);
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}
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#endif
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/*
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* Poll the driver for changed information
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*/
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Bool
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RRGetInfo(ScreenPtr pScreen, Bool force_query)
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{
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rrScrPriv(pScreen);
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Rotation rotations;
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int i;
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/* Return immediately if we don't need to re-query and we already have the
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* information.
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*/
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if (!force_query) {
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if (pScrPriv->numCrtcs != 0 || pScrPriv->numOutputs != 0)
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return TRUE;
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}
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for (i = 0; i < pScrPriv->numOutputs; i++)
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pScrPriv->outputs[i]->changed = FALSE;
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for (i = 0; i < pScrPriv->numCrtcs; i++)
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pScrPriv->crtcs[i]->changed = FALSE;
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rotations = 0;
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pScrPriv->changed = FALSE;
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pScrPriv->configChanged = FALSE;
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if (!(*pScrPriv->rrGetInfo) (pScreen, &rotations))
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return FALSE;
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#if RANDR_10_INTERFACE
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if (pScrPriv->nSizes)
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RRScanOldConfig(pScreen, rotations);
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#endif
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RRTellChanged(pScreen);
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return TRUE;
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}
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/*
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* Register the range of sizes for the screen
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*/
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void
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RRScreenSetSizeRange(ScreenPtr pScreen,
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CARD16 minWidth,
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CARD16 minHeight, CARD16 maxWidth, CARD16 maxHeight)
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{
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rrScrPriv(pScreen);
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if (!pScrPriv)
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return;
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if (pScrPriv->minWidth == minWidth && pScrPriv->minHeight == minHeight &&
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pScrPriv->maxWidth == maxWidth && pScrPriv->maxHeight == maxHeight) {
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return;
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}
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pScrPriv->minWidth = minWidth;
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pScrPriv->minHeight = minHeight;
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pScrPriv->maxWidth = maxWidth;
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pScrPriv->maxHeight = maxHeight;
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RRSetChanged(pScreen);
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pScrPriv->configChanged = TRUE;
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}
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#ifdef RANDR_10_INTERFACE
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static Bool
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RRScreenSizeMatches(RRScreenSizePtr a, RRScreenSizePtr b)
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{
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if (a->width != b->width)
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return FALSE;
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if (a->height != b->height)
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return FALSE;
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if (a->mmWidth != b->mmWidth)
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return FALSE;
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if (a->mmHeight != b->mmHeight)
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return FALSE;
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return TRUE;
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}
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RRScreenSizePtr
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RRRegisterSize(ScreenPtr pScreen,
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short width, short height, short mmWidth, short mmHeight)
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{
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rrScrPriv(pScreen);
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int i;
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RRScreenSize tmp;
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RRScreenSizePtr pNew;
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if (!pScrPriv)
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return 0;
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tmp.id = 0;
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tmp.width = width;
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tmp.height = height;
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tmp.mmWidth = mmWidth;
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tmp.mmHeight = mmHeight;
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tmp.pRates = 0;
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tmp.nRates = 0;
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for (i = 0; i < pScrPriv->nSizes; i++)
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if (RRScreenSizeMatches(&tmp, &pScrPriv->pSizes[i]))
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return &pScrPriv->pSizes[i];
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pNew = reallocarray(pScrPriv->pSizes,
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pScrPriv->nSizes + 1, sizeof(RRScreenSize));
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if (!pNew)
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return 0;
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pNew[pScrPriv->nSizes++] = tmp;
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pScrPriv->pSizes = pNew;
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return &pNew[pScrPriv->nSizes - 1];
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}
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Bool
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RRRegisterRate(ScreenPtr pScreen, RRScreenSizePtr pSize, int rate)
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{
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rrScrPriv(pScreen);
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int i;
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RRScreenRatePtr pNew, pRate;
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if (!pScrPriv)
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return FALSE;
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for (i = 0; i < pSize->nRates; i++)
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if (pSize->pRates[i].rate == rate)
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return TRUE;
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pNew = reallocarray(pSize->pRates, pSize->nRates + 1, sizeof(RRScreenRate));
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if (!pNew)
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return FALSE;
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pRate = &pNew[pSize->nRates++];
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pRate->rate = rate;
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pSize->pRates = pNew;
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return TRUE;
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}
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Rotation
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RRGetRotation(ScreenPtr pScreen)
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{
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RROutputPtr output = RRFirstOutput(pScreen);
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if (!output)
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return RR_Rotate_0;
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return output->crtc->rotation;
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}
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void
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RRSetCurrentConfig(ScreenPtr pScreen,
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Rotation rotation, int rate, RRScreenSizePtr pSize)
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{
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rrScrPriv(pScreen);
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if (!pScrPriv)
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return;
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pScrPriv->size = pSize - pScrPriv->pSizes;
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pScrPriv->rotation = rotation;
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pScrPriv->rate = rate;
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}
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#endif
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