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xserver/hw/xquartz/quartzRandR.c

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/*
* Quartz-specific support for the XRandR extension
*
* Copyright (c) 2001-2004 Greg Parker and Torrey T. Lyons,
* 2010 Jan Hauffa.
* 2010 Apple Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
#include "sanitizedCarbon.h"
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "quartzCommon.h"
#include "quartzRandR.h"
#include "quartz.h"
#include "darwin.h"
#include <AvailabilityMacros.h>
#include <X11/extensions/randr.h>
#include <randrstr.h>
#include <IOKit/graphics/IOGraphicsTypes.h>
/* TODO: UGLY, find a better way!
* We want to ignore kXquartzDisplayChanged which are generated by us
*/
static Bool ignore_next_fake_mode_update = FALSE;
#define FAKE_REFRESH_ROOTLESS 1
#define FAKE_REFRESH_FULLSCREEN 2
#define DEFAULT_REFRESH 60
#define kDisplayModeUsableFlags (kDisplayModeValidFlag | kDisplayModeSafeFlag)
#define CALLBACK_SUCCESS 0
#define CALLBACK_CONTINUE 1
#define CALLBACK_ERROR -1
typedef int (*QuartzModeCallback)
(ScreenPtr, QuartzModeInfoPtr, void *);
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
static long getDictLong (CFDictionaryRef dictRef, CFStringRef key) {
long value;
CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);
if (!numRef)
return 0;
if (!CFNumberGetValue(numRef, kCFNumberLongType, &value))
return 0;
return value;
}
static double getDictDouble (CFDictionaryRef dictRef, CFStringRef key) {
double value;
CFNumberRef numRef = (CFNumberRef) CFDictionaryGetValue(dictRef, key);
if (!numRef)
return 0.0;
if (!CFNumberGetValue(numRef, kCFNumberDoubleType, &value))
return 0.0;
return value;
}
static void QuartzRandRGetModeInfo (CFDictionaryRef modeRef,
QuartzModeInfoPtr pMode) {
pMode->width = (size_t) getDictLong(modeRef, kCGDisplayWidth);
pMode->height = (size_t) getDictLong(modeRef, kCGDisplayHeight);
pMode->refresh = (int)(getDictDouble(modeRef, kCGDisplayRefreshRate) + 0.5);
if (pMode->refresh == 0)
pMode->refresh = DEFAULT_REFRESH;
pMode->ref = NULL;
pMode->pSize = NULL;
}
static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,
QuartzModeInfoPtr pMode) {
CFDictionaryRef curModeRef = CGDisplayCurrentMode(screenId);
if (!curModeRef)
return FALSE;
QuartzRandRGetModeInfo(curModeRef, pMode);
pMode->ref = (void *)curModeRef;
CFRetain(pMode->ref);
return TRUE;
}
static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,
QuartzModeInfoPtr pMode) {
CFDictionaryRef modeRef = (CFDictionaryRef) pMode->ref;
return (CGDisplaySwitchToMode(screenId, modeRef) == kCGErrorSuccess);
}
static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,
QuartzModeCallback callback,
void *data) {
CFDictionaryRef curModeRef, modeRef;
long curBpp;
CFArrayRef modes;
QuartzModeInfo modeInfo;
int i;
BOOL retval = FALSE;
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];
curModeRef = CGDisplayCurrentMode(screenId);
if (!curModeRef)
return FALSE;
curBpp = getDictLong(curModeRef, kCGDisplayBitsPerPixel);
modes = CGDisplayAvailableModes(screenId);
if (!modes)
return FALSE;
for (i = 0; i < CFArrayGetCount(modes); i++) {
int cb;
modeRef = (CFDictionaryRef) CFArrayGetValueAtIndex(modes, i);
/* Skip modes that are not usable on the current display or have a
different pixel encoding than the current mode. */
if (((unsigned long) getDictLong(modeRef, kCGDisplayIOFlags) &
kDisplayModeUsableFlags) != kDisplayModeUsableFlags)
continue;
if (getDictLong(modeRef, kCGDisplayBitsPerPixel) != curBpp)
continue;
QuartzRandRGetModeInfo(modeRef, &modeInfo);
modeInfo.ref = (void *)modeRef;
cb = callback(pScreen, &modeInfo, data);
if (cb == CALLBACK_CONTINUE)
retval = TRUE;
else if (cb == CALLBACK_SUCCESS)
return TRUE;
else if (cb == CALLBACK_ERROR)
return FALSE;
}
switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
case CALLBACK_SUCCESS:
return TRUE;
case CALLBACK_ERROR:
return FALSE;
case CALLBACK_CONTINUE:
retval = TRUE;
default:
break;
}
switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
case CALLBACK_SUCCESS:
return TRUE;
case CALLBACK_ERROR:
return FALSE;
case CALLBACK_CONTINUE:
retval = TRUE;
default:
break;
}
return retval;
}
#else /* we have the new CG APIs from Snow Leopard */
static void QuartzRandRGetModeInfo (CGDisplayModeRef modeRef,
QuartzModeInfoPtr pMode) {
pMode->width = CGDisplayModeGetWidth(modeRef);
pMode->height = CGDisplayModeGetHeight(modeRef);
pMode->refresh = (int) (CGDisplayModeGetRefreshRate(modeRef) + 0.5);
if (pMode->refresh == 0)
pMode->refresh = DEFAULT_REFRESH;
pMode->ref = NULL;
pMode->pSize = NULL;
}
static Bool QuartzRandRCopyCurrentModeInfo (CGDirectDisplayID screenId,
QuartzModeInfoPtr pMode) {
CGDisplayModeRef curModeRef = CGDisplayCopyDisplayMode(screenId);
if (!curModeRef)
return FALSE;
QuartzRandRGetModeInfo(curModeRef, pMode);
pMode->ref = curModeRef;
return TRUE;
}
static Bool QuartzRandRSetCGMode (CGDirectDisplayID screenId,
QuartzModeInfoPtr pMode) {
CGDisplayModeRef modeRef = (CGDisplayModeRef) pMode->ref;
if (!modeRef)
return FALSE;
return (CGDisplaySetDisplayMode(screenId, modeRef, NULL) == kCGErrorSuccess);
}
static Bool QuartzRandREnumerateModes (ScreenPtr pScreen,
QuartzModeCallback callback,
void *data) {
CGDisplayModeRef curModeRef, modeRef;
CFStringRef curPixelEnc, pixelEnc;
CFComparisonResult pixelEncEqual;
CFArrayRef modes;
QuartzModeInfo modeInfo;
int i;
Bool retval = FALSE;
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];
curModeRef = CGDisplayCopyDisplayMode(screenId);
if (!curModeRef)
return FALSE;
curPixelEnc = CGDisplayModeCopyPixelEncoding(curModeRef);
CGDisplayModeRelease(curModeRef);
modes = CGDisplayCopyAllDisplayModes(screenId, NULL);
if (!modes) {
CFRelease(curPixelEnc);
return FALSE;
}
for (i = 0; i < CFArrayGetCount(modes); i++) {
int cb;
modeRef = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
/* Skip modes that are not usable on the current display or have a
different pixel encoding than the current mode. */
if ((CGDisplayModeGetIOFlags(modeRef) & kDisplayModeUsableFlags) !=
kDisplayModeUsableFlags)
continue;
pixelEnc = CGDisplayModeCopyPixelEncoding(modeRef);
pixelEncEqual = CFStringCompare(pixelEnc, curPixelEnc, 0);
CFRelease(pixelEnc);
if (pixelEncEqual != kCFCompareEqualTo)
continue;
QuartzRandRGetModeInfo(modeRef, &modeInfo);
modeInfo.ref = modeRef;
cb = callback(pScreen, &modeInfo, data);
if (cb == CALLBACK_CONTINUE) {
retval = TRUE;
} else if (cb == CALLBACK_SUCCESS) {
CFRelease(modes);
CFRelease(curPixelEnc);
return TRUE;
} else if (cb == CALLBACK_ERROR) {
CFRelease(modes);
CFRelease(curPixelEnc);
return FALSE;
}
}
CFRelease(modes);
CFRelease(curPixelEnc);
switch(callback(pScreen, &pQuartzScreen->rootlessMode, data)) {
case CALLBACK_SUCCESS:
return TRUE;
case CALLBACK_ERROR:
return FALSE;
case CALLBACK_CONTINUE:
retval = TRUE;
default:
break;
}
switch(callback(pScreen, &pQuartzScreen->fullscreenMode, data)) {
case CALLBACK_SUCCESS:
return TRUE;
case CALLBACK_ERROR:
return FALSE;
case CALLBACK_CONTINUE:
retval = TRUE;
default:
break;
}
return retval;
}
#endif /* Snow Leopard CoreGraphics APIs */
static Bool QuartzRandRModesEqual (QuartzModeInfoPtr pMode1,
QuartzModeInfoPtr pMode2) {
return (pMode1->width == pMode2->width) &&
(pMode1->height == pMode2->height) &&
(pMode1->refresh == pMode2->refresh);
}
static Bool QuartzRandRRegisterMode (ScreenPtr pScreen,
QuartzModeInfoPtr pMode) {
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
Bool isCurrentMode = QuartzRandRModesEqual(&pQuartzScreen->currentMode, pMode);
/* TODO: DPI */
pMode->pSize = RRRegisterSize(pScreen, pMode->width, pMode->height, pScreen->mmWidth, pScreen->mmHeight);
if (pMode->pSize) {
//DEBUG_LOG("registering: %d x %d @ %d %s\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh, isCurrentMode ? "*" : "");
RRRegisterRate(pScreen, pMode->pSize, pMode->refresh);
if (isCurrentMode)
RRSetCurrentConfig(pScreen, RR_Rotate_0, pMode->refresh, pMode->pSize);
return TRUE;
}
return FALSE;
}
static int QuartzRandRRegisterModeCallback (ScreenPtr pScreen,
QuartzModeInfoPtr pMode,
void *data __unused) {
if(QuartzRandRRegisterMode(pScreen, pMode)) {
return CALLBACK_CONTINUE;
} else {
return CALLBACK_ERROR;
}
}
static Bool QuartzRandRSetMode(ScreenPtr pScreen, QuartzModeInfoPtr pMode, BOOL doRegister) {
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
CGDirectDisplayID screenId = pQuartzScreen->displayIDs[0];
if (pQuartzScreen->currentMode.ref && CFEqual(pMode->ref, pQuartzScreen->currentMode.ref)) {
DEBUG_LOG("Requested RandR resolution matches current CG mode\n");
} if (QuartzRandRSetCGMode(screenId, pMode)) {
ignore_next_fake_mode_update = TRUE;
} else {
DEBUG_LOG("Error while requesting CG resolution change.\n");
return FALSE;
}
/* If the client requested the fake rootless mode, switch to rootless.
* Otherwise, force fullscreen mode.
*/
QuartzSetRootless(pMode->refresh == FAKE_REFRESH_ROOTLESS);
if (pMode->refresh != FAKE_REFRESH_ROOTLESS) {
QuartzShowFullscreen(TRUE);
}
if(pQuartzScreen->currentMode.ref)
CFRelease(pQuartzScreen->currentMode.ref);
pQuartzScreen->currentMode = *pMode;
CFRetain(pQuartzScreen->currentMode.ref);
return TRUE;
}
static int QuartzRandRSetModeCallback (ScreenPtr pScreen,
QuartzModeInfoPtr pMode,
void *data) {
QuartzModeInfoPtr pReqMode = (QuartzModeInfoPtr) data;
if (!QuartzRandRModesEqual(pMode, pReqMode))
return CALLBACK_CONTINUE; /* continue enumeration */
DEBUG_LOG("Found a match for requested RandR resolution (%dx%d@%d).\n", (int)pMode->width, (int)pMode->height, (int)pMode->refresh);
if(QuartzRandRSetMode(pScreen, pMode, FALSE))
return CALLBACK_SUCCESS;
else
return CALLBACK_ERROR;
}
static Bool QuartzRandRGetInfo (ScreenPtr pScreen, Rotation *rotations) {
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
*rotations = RR_Rotate_0; /* TODO: support rotation */
if (pQuartzScreen->displayCount == 0)
return FALSE;
if (pQuartzScreen->displayCount > 1) {
/* RandR operations are not well-defined for an X11 screen spanning
multiple CG displays. Create two entries for the current virtual
resolution including/excluding the menu bar. */
QuartzRandRRegisterMode(pScreen, &pQuartzScreen->rootlessMode);
QuartzRandRRegisterMode(pScreen, &pQuartzScreen->fullscreenMode);
return TRUE;
}
return QuartzRandREnumerateModes(pScreen, QuartzRandRRegisterModeCallback, NULL);
}
static Bool QuartzRandRSetConfig (ScreenPtr pScreen,
Rotation randr,
int rate,
RRScreenSizePtr pSize) {
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
QuartzModeInfo reqMode;
reqMode.width = pSize->width;
reqMode.height = pSize->height;
reqMode.refresh = rate;
if (pQuartzScreen->displayCount == 0)
return FALSE;
/* Do not switch modes if requested mode is equal to current mode. */
if (QuartzRandRModesEqual(&reqMode, &pQuartzScreen->currentMode))
return TRUE;
if (QuartzRandREnumerateModes(pScreen, QuartzRandRSetModeCallback, &reqMode)) {
return TRUE;
}
DEBUG_LOG("Unable to find a matching config: %d x %d @ %d\n", (int)reqMode.width, (int)reqMode.height, (int)reqMode.refresh);
return FALSE;
}
static Bool _QuartzRandRUpdateFakeModes (ScreenPtr pScreen) {
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
if(pQuartzScreen->fullscreenMode.ref)
CFRelease(pQuartzScreen->fullscreenMode.ref);
if(pQuartzScreen->currentMode.ref)
CFRelease(pQuartzScreen->currentMode.ref);
if (!QuartzRandRCopyCurrentModeInfo(pQuartzScreen->displayIDs[0],
&pQuartzScreen->fullscreenMode))
return FALSE;
if (pQuartzScreen->displayCount > 1) {
pQuartzScreen->fullscreenMode.width = pScreen->width;
pQuartzScreen->fullscreenMode.height = pScreen->height;
if(XQuartzIsRootless)
pQuartzScreen->fullscreenMode.height += aquaMenuBarHeight;
}
pQuartzScreen->fullscreenMode.refresh = FAKE_REFRESH_FULLSCREEN;
pQuartzScreen->rootlessMode = pQuartzScreen->fullscreenMode;
pQuartzScreen->rootlessMode.refresh = FAKE_REFRESH_ROOTLESS;
pQuartzScreen->rootlessMode.height -= aquaMenuBarHeight;
if(XQuartzIsRootless) {
pQuartzScreen->currentMode = pQuartzScreen->rootlessMode;
} else {
pQuartzScreen->currentMode = pQuartzScreen->fullscreenMode;
}
/* This extra retain is for currentMode's copy.
* fullscreen and rootless share a retain.
*/
CFRetain(pQuartzScreen->currentMode.ref);
DEBUG_LOG("rootlessMode: %d x %d\n", (int)pQuartzScreen->rootlessMode.width, (int)pQuartzScreen->rootlessMode.height);
DEBUG_LOG("fullscreenMode: %d x %d\n", (int)pQuartzScreen->fullscreenMode.width, (int)pQuartzScreen->fullscreenMode.height);
DEBUG_LOG("currentMode: %d x %d\n", (int)pQuartzScreen->currentMode.width, (int)pQuartzScreen->currentMode.height);
return TRUE;
}
Bool QuartzRandRUpdateFakeModes (BOOL force_update) {
ScreenPtr pScreen = screenInfo.screens[0];
if(ignore_next_fake_mode_update) {
DEBUG_LOG("Ignoring update request caused by RandR resolution change.\n");
ignore_next_fake_mode_update = FALSE;
return TRUE;
}
if(!_QuartzRandRUpdateFakeModes(pScreen))
return FALSE;
if(force_update)
RRGetInfo(pScreen, TRUE);
return TRUE;
}
Bool QuartzRandRInit (ScreenPtr pScreen) {
rrScrPrivPtr pScrPriv;
if (!RRScreenInit (pScreen)) return FALSE;
if (!_QuartzRandRUpdateFakeModes (pScreen)) return FALSE;
pScrPriv = rrGetScrPriv(pScreen);
pScrPriv->rrGetInfo = QuartzRandRGetInfo;
pScrPriv->rrSetConfig = QuartzRandRSetConfig;
return TRUE;
}
void QuartzRandRSetFakeRootless (void) {
int i;
DEBUG_LOG("QuartzRandRSetFakeRootless called.\n");
for (i=0; i < screenInfo.numScreens; i++) {
ScreenPtr pScreen = screenInfo.screens[i];
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
QuartzRandRSetMode(pScreen, &pQuartzScreen->rootlessMode, TRUE);
}
}
void QuartzRandRSetFakeFullscreen (BOOL state) {
int i;
DEBUG_LOG("QuartzRandRSetFakeFullscreen called.\n");
for (i=0; i < screenInfo.numScreens; i++) {
ScreenPtr pScreen = screenInfo.screens[i];
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
QuartzRandRSetMode(pScreen, &pQuartzScreen->fullscreenMode, TRUE);
}
QuartzShowFullscreen(state);
}
/* Toggle fullscreen mode. If "fake" fullscreen is the current mode,
* this will just show/hide the X11 windows. If we are in a RandR fullscreen
* mode, this will toggles us to the default fake mode and hide windows if
* it is fullscreen
*/
void QuartzRandRToggleFullscreen (void) {
ScreenPtr pScreen = screenInfo.screens[0];
QuartzScreenPtr pQuartzScreen = QUARTZ_PRIV(pScreen);
if (pQuartzScreen->currentMode.ref == NULL) {
ErrorF("Ignoring QuartzRandRToggleFullscreen because don't have a current mode set.\n");
} else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_ROOTLESS) {
ErrorF("Ignoring QuartzRandRToggleFullscreen because we are in rootless mode.\n");
} else if (pQuartzScreen->currentMode.refresh == FAKE_REFRESH_FULLSCREEN) {
/* Legacy fullscreen mode. Hide/Show */
QuartzShowFullscreen(!XQuartzFullscreenVisible);
} else {
/* RandR fullscreen mode. Return to default mode and hide if it is fullscreen. */
if(XQuartzRootlessDefault) {
QuartzRandRSetFakeRootless();
} else {
QuartzRandRSetFakeFullscreen(FALSE);
}
}
}
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