343 lines
9.5 KiB
C
343 lines
9.5 KiB
C
/* $XdotOrg: xc/programs/Xserver/hw/xfree86/common/xf86RandR.c,v 1.8 2005/03/16 12:16:06 eich Exp $ */
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/*
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* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86RandR.c,v 1.7tsi Exp $
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*
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* Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
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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
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS 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 KEITH PACKARD 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
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <X11/X.h>
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#include "os.h"
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#include "mibank.h"
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#include "globals.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86DDC.h"
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#include "mipointer.h"
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#include <randrstr.h>
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typedef struct _xf86RandRInfo {
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CreateScreenResourcesProcPtr CreateScreenResources;
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CloseScreenProcPtr CloseScreen;
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int virtualX;
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int virtualY;
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int mmWidth;
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int mmHeight;
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Rotation rotation;
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} XF86RandRInfoRec, *XF86RandRInfoPtr;
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static int xf86RandRIndex;
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static int xf86RandRGeneration;
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#define XF86RANDRINFO(p) ((XF86RandRInfoPtr) (p)->devPrivates[xf86RandRIndex].ptr)
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static int
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xf86RandRModeRefresh (DisplayModePtr mode)
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{
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if (mode->VRefresh)
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return (int) (mode->VRefresh + 0.5);
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else
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return (int) (mode->Clock * 1000.0 / mode->HTotal / mode->VTotal + 0.5);
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}
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static Bool
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xf86RandRGetInfo (ScreenPtr pScreen, Rotation *rotations)
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{
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RRScreenSizePtr pSize;
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
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DisplayModePtr mode;
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int refresh0 = 60;
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*rotations = RR_Rotate_0;
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for (mode = scrp->modes; ; mode = mode->next)
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{
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int refresh = xf86RandRModeRefresh (mode);
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if (mode == scrp->modes)
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refresh0 = refresh;
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pSize = RRRegisterSize (pScreen,
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mode->HDisplay, mode->VDisplay,
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randrp->mmWidth, randrp->mmHeight);
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if (!pSize)
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return FALSE;
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RRRegisterRate (pScreen, pSize, refresh);
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if (mode == scrp->currentMode &&
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mode->HDisplay == scrp->virtualX && mode->VDisplay == scrp->virtualY)
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RRSetCurrentConfig (pScreen, randrp->rotation, refresh, pSize);
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if (mode->next == scrp->modes)
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break;
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}
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if (scrp->currentMode->HDisplay != randrp->virtualX ||
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scrp->currentMode->VDisplay != randrp->virtualY)
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{
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mode = scrp->modes;
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pSize = RRRegisterSize (pScreen,
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randrp->virtualX, randrp->virtualY,
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randrp->mmWidth,
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randrp->mmHeight);
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if (!pSize)
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return FALSE;
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RRRegisterRate (pScreen, pSize, refresh0);
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if (scrp->virtualX == randrp->virtualX &&
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scrp->virtualY == randrp->virtualY)
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{
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RRSetCurrentConfig (pScreen, randrp->rotation, refresh0, pSize);
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}
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}
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/* If there is driver support for randr, let it set our supported rotations */
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if(scrp->DriverFunc) {
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xorgRRRotation RRRotation;
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RRRotation.RRRotations = *rotations;
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if (!(*scrp->DriverFunc)(scrp, RR_GET_INFO, &RRRotation))
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return TRUE;
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*rotations = RRRotation.RRRotations;
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}
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return TRUE;
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}
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static Bool
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xf86RandRSetMode (ScreenPtr pScreen,
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DisplayModePtr mode,
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Bool useVirtual,
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int mmWidth,
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int mmHeight)
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{
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
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int oldWidth = pScreen->width;
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int oldHeight = pScreen->height;
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int oldmmWidth = pScreen->mmWidth;
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int oldmmHeight = pScreen->mmHeight;
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WindowPtr pRoot = WindowTable[pScreen->myNum];
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if (pRoot)
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(*scrp->EnableDisableFBAccess) (pScreen->myNum, FALSE);
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if (useVirtual)
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{
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scrp->virtualX = randrp->virtualX;
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scrp->virtualY = randrp->virtualY;
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}
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else
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{
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scrp->virtualX = mode->HDisplay;
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scrp->virtualY = mode->VDisplay;
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}
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if(randrp->rotation & (RR_Rotate_90 | RR_Rotate_270))
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{
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/* If the screen is rotated 90 or 270 degrees, swap the sizes. */
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pScreen->width = scrp->virtualY;
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pScreen->height = scrp->virtualX;
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pScreen->mmWidth = mmHeight;
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pScreen->mmHeight = mmWidth;
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}
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else
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{
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pScreen->width = scrp->virtualX;
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pScreen->height = scrp->virtualY;
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pScreen->mmWidth = mmWidth;
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pScreen->mmHeight = mmHeight;
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}
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if (!xf86SwitchMode (pScreen, mode))
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{
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scrp->virtualX = pScreen->width = oldWidth;
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scrp->virtualY = pScreen->height = oldHeight;
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pScreen->mmWidth = oldmmWidth;
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pScreen->mmHeight = oldmmHeight;
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return FALSE;
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}
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/*
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* Make sure the layout is correct
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*/
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xf86ReconfigureLayout();
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/*
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* Make sure the whole screen is visible
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*/
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xf86SetViewport (pScreen, pScreen->width, pScreen->height);
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xf86SetViewport (pScreen, 0, 0);
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if (pRoot)
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(*scrp->EnableDisableFBAccess) (pScreen->myNum, TRUE);
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return TRUE;
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}
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static Bool
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xf86RandRSetConfig (ScreenPtr pScreen,
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Rotation rotation,
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int rate,
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RRScreenSizePtr pSize)
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{
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
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DisplayModePtr mode;
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int px, py;
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Bool useVirtual = FALSE;
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miPointerPosition (&px, &py);
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for (mode = scrp->modes; ; mode = mode->next)
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{
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if (mode->HDisplay == pSize->width &&
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mode->VDisplay == pSize->height &&
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(rate == 0 || xf86RandRModeRefresh (mode) == rate))
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break;
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if (mode->next == scrp->modes)
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{
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if (pSize->width == randrp->virtualX &&
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pSize->height == randrp->virtualY)
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{
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mode = scrp->modes;
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useVirtual = TRUE;
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break;
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}
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return FALSE;
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}
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}
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if (randrp->rotation != rotation) {
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/* Have the driver do its thing. */
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if (scrp->DriverFunc) {
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xorgRRRotation RRRotation;
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RRRotation.RRConfig.rotation = rotation;
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RRRotation.RRConfig.rate = rate;
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RRRotation.RRConfig.width = pSize->width;
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RRRotation.RRConfig.height = pSize->height;
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/*
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* Currently we need to rely on HW support for rotation.
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*/
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if (!(*scrp->DriverFunc)(scrp, RR_SET_CONFIG, &RRRotation))
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return FALSE;
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} else
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return FALSE;
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randrp->rotation = rotation;
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}
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if (!xf86RandRSetMode (pScreen, mode, useVirtual, pSize->mmWidth, pSize->mmHeight))
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return FALSE;
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/*
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* Move the cursor back where it belongs; SwitchMode repositions it
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*/
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if (pScreen == miPointerCurrentScreen ())
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{
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if (px < pSize->width && py < pSize->height)
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(*pScreen->SetCursorPosition) (pScreen, px, py, FALSE);
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}
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return TRUE;
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}
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/*
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* Wait until the screen is initialized before whacking the
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* sizes around; otherwise the screen pixmap will be allocated
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* at the current mode size rather than the maximum size
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*/
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static Bool
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xf86RandRCreateScreenResources (ScreenPtr pScreen)
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{
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XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
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#if 0
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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DisplayModePtr mode;
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#endif
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pScreen->CreateScreenResources = randrp->CreateScreenResources;
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if (!(*pScreen->CreateScreenResources) (pScreen))
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return FALSE;
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#if 0
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mode = scrp->currentMode;
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if (mode)
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xf86RandRSetMode (pScreen, mode, TRUE);
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#endif
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return TRUE;
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}
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/*
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* Reset size back to original
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*/
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static Bool
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xf86RandRCloseScreen (int index, ScreenPtr pScreen)
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{
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
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scrp->virtualX = pScreen->width = randrp->virtualX;
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scrp->virtualY = pScreen->height = randrp->virtualY;
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scrp->currentMode = scrp->modes;
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pScreen->CloseScreen = randrp->CloseScreen;
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xfree (randrp);
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pScreen->devPrivates[xf86RandRIndex].ptr = 0;
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return (*pScreen->CloseScreen) (index, pScreen);
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}
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Bool
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xf86RandRInit (ScreenPtr pScreen)
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{
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rrScrPrivPtr rp;
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XF86RandRInfoPtr randrp;
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ScrnInfoPtr scrp = XF86SCRNINFO(pScreen);
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#ifdef PANORAMIX
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/* XXX disable RandR when using Xinerama */
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if (!noPanoramiXExtension)
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return TRUE;
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#endif
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if (xf86RandRGeneration != serverGeneration)
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{
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xf86RandRIndex = AllocateScreenPrivateIndex();
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xf86RandRGeneration = serverGeneration;
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}
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randrp = xalloc (sizeof (XF86RandRInfoRec));
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if (!randrp)
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return FALSE;
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if (!RRScreenInit (pScreen))
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{
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xfree (randrp);
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return FALSE;
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}
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rp = rrGetScrPriv(pScreen);
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rp->rrGetInfo = xf86RandRGetInfo;
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rp->rrSetConfig = xf86RandRSetConfig;
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randrp->virtualX = scrp->virtualX;
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randrp->virtualY = scrp->virtualY;
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randrp->mmWidth = pScreen->mmWidth;
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randrp->mmHeight = pScreen->mmHeight;
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randrp->CreateScreenResources = pScreen->CreateScreenResources;
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pScreen->CreateScreenResources = xf86RandRCreateScreenResources;
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randrp->CloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = xf86RandRCloseScreen;
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randrp->rotation = RR_Rotate_0;
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pScreen->devPrivates[xf86RandRIndex].ptr = randrp;
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return TRUE;
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}
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