/***********************************************************************
* macdrv_displays_changed
*
* Handler for DISPLAYS_CHANGED events.
*/
void macdrv_displays_changed(const macdrv_event *event)
{
HWND hwnd = GetDesktopWindow();
/* A system display change will get delivered to all GUI-attached threads,
so the desktop-window-owning thread will get it and all others should
ignore it. A synthesized display change event due to activation
will only get delivered to the activated process. So, it needs to
process it (by sending it to the desktop window). */
if (event->displays_changed.activating ||
GetWindowThreadProcessId(hwnd, NULL) == GetCurrentThreadId())
{
CGDirectDisplayID mainDisplay = CGMainDisplayID();
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(mainDisplay);
size_t width = CGDisplayModeGetWidth(mode);
size_t height = CGDisplayModeGetHeight(mode);
int mode_bpp = display_mode_bits_per_pixel(mode);
struct display_mode_descriptor* desc = create_original_display_mode_descriptor(mainDisplay);
BOOL is_original = display_mode_matches_descriptor(mode, desc);
free_display_mode_descriptor(desc);
CGDisplayModeRelease(mode);
if (is_original && retina_enabled)
{
width *= 2;
height *= 2;
}
SendMessageW(hwnd, WM_MACDRV_UPDATE_DESKTOP_RECT, mode_bpp,
MAKELPARAM(width, height));
}
}
void check_retina_status(void)
{
if (retina_enabled)
{
struct display_mode_descriptor* desc = create_original_display_mode_descriptor(kCGDirectMainDisplay);
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(kCGDirectMainDisplay);
BOOL new_value = display_mode_matches_descriptor(mode, desc);
CGDisplayModeRelease(mode);
free_display_mode_descriptor(desc);
if (new_value != retina_on)
macdrv_set_cocoa_retina_mode(new_value);
}
}
/***********************************************************************
* copy_display_modes
*
* Wrapper around CGDisplayCopyAllDisplayModes() to include additional
* modes on Retina-capable systems, but filter those which would confuse
* Windows apps (basically duplicates at different DPIs).
*
* For example, some Retina Macs support a 1920x1200 mode, but it's not
* returned from CGDisplayCopyAllDisplayModes() without special options.
* This is especially bad if that's the user's default mode, since then
* no "available" mode matches the initial settings.
*/
static CFArrayRef copy_display_modes(CGDirectDisplayID display)
{
CFArrayRef modes = NULL;
#if defined(MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (&kCGDisplayShowDuplicateLowResolutionModes != NULL &&
CGDisplayModeGetPixelWidth != NULL && CGDisplayModeGetPixelHeight != NULL)
{
CFDictionaryRef options;
struct display_mode_descriptor* desc;
CFMutableDictionaryRef modes_by_size;
CFIndex i, count;
CGDisplayModeRef* mode_array;
options = CFDictionaryCreate(NULL, (const void**)&kCGDisplayShowDuplicateLowResolutionModes,
(const void**)&kCFBooleanTrue, 1, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
modes = CGDisplayCopyAllDisplayModes(display, options);
if (options)
CFRelease(options);
if (!modes)
return NULL;
desc = create_original_display_mode_descriptor(display);
modes_by_size = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
count = CFArrayGetCount(modes);
for (i = 0; i < count; i++)
{
BOOL better = TRUE;
CGDisplayModeRef new_mode = (CGDisplayModeRef)CFArrayGetValueAtIndex(modes, i);
BOOL new_is_original = display_mode_matches_descriptor(new_mode, desc);
CFDictionaryRef key = create_mode_dict(new_mode);
/* If a given mode is the user's default, then always list it in preference to any similar
modes that may exist. */
if (new_is_original)
better = TRUE;
else
{
CFStringRef pixel_encoding = CGDisplayModeCopyPixelEncoding(new_mode);
CGDisplayModeRef old_mode;
if (pixel_encoding)
{
BOOL bpp30 = CFEqual(pixel_encoding, CFSTR(kIO30BitDirectPixels));
CFRelease(pixel_encoding);
if (bpp30)
{
/* This is an odd pixel encoding. It seems it's only returned
when using kCGDisplayShowDuplicateLowResolutionModes. It's
32bpp in terms of the actual raster layout, but it's 10
bits per component. I think that no Windows program is
likely to need it and they will probably be confused by it.
Skip it. */
CFRelease(key);
continue;
}
}
old_mode = (CGDisplayModeRef)CFDictionaryGetValue(modes_by_size, key);
if (old_mode)
{
BOOL old_is_original = display_mode_matches_descriptor(old_mode, desc);
if (old_is_original)
better = FALSE;
else
{
/* Otherwise, prefer a mode whose pixel size equals its point size over one which
is scaled. */
size_t width_points = CGDisplayModeGetWidth(new_mode);
size_t height_points = CGDisplayModeGetHeight(new_mode);
size_t new_width_pixels = CGDisplayModeGetPixelWidth(new_mode);
size_t new_height_pixels = CGDisplayModeGetPixelHeight(new_mode);
size_t old_width_pixels = CGDisplayModeGetPixelWidth(old_mode);
size_t old_height_pixels = CGDisplayModeGetPixelHeight(old_mode);
BOOL new_size_same = (new_width_pixels == width_points && new_height_pixels == height_points);
BOOL old_size_same = (old_width_pixels == width_points && old_height_pixels == height_points);
if (new_size_same && !old_size_same)
better = TRUE;
else if (!new_size_same && old_size_same)
better = FALSE;
else
{
/* Otherwise, prefer the mode with the smaller pixel size. */
if (old_width_pixels < new_width_pixels || old_height_pixels < new_height_pixels)
better = FALSE;
}
}
}
}
if (better)
CFDictionarySetValue(modes_by_size, key, new_mode);
CFRelease(key);
}
free_display_mode_descriptor(desc);
CFRelease(modes);
count = CFDictionaryGetCount(modes_by_size);
mode_array = HeapAlloc(GetProcessHeap(), 0, count * sizeof(mode_array[0]));
CFDictionaryGetKeysAndValues(modes_by_size, NULL, (const void **)mode_array);
modes = CFArrayCreate(NULL, (const void **)mode_array, count, &kCFTypeArrayCallBacks);
HeapFree(GetProcessHeap(), 0, mode_array);
CFRelease(modes_by_size);
}
else
#endif
modes = CGDisplayCopyAllDisplayModes(display, NULL);
return modes;
}
/***********************************************************************
* EnumDisplaySettingsEx (MACDRV.@)
*
*/
BOOL CDECL macdrv_EnumDisplaySettingsEx(LPCWSTR devname, DWORD mode,
LPDEVMODEW devmode, DWORD flags)
{
static const WCHAR dev_name[CCHDEVICENAME] =
{ 'W','i','n','e',' ','M','a','c',' ','d','r','i','v','e','r',0 };
struct macdrv_display *displays = NULL;
int num_displays;
CGDisplayModeRef display_mode;
int display_mode_bpp;
BOOL synthesized = FALSE;
double rotation;
uint32_t io_flags;
TRACE("%s, %u, %p + %hu, %08x\n", debugstr_w(devname), mode, devmode, devmode->dmSize, flags);
init_original_display_mode();
memcpy(devmode->dmDeviceName, dev_name, sizeof(dev_name));
devmode->dmSpecVersion = DM_SPECVERSION;
devmode->dmDriverVersion = DM_SPECVERSION;
devmode->dmSize = FIELD_OFFSET(DEVMODEW, dmICMMethod);
devmode->dmDriverExtra = 0;
memset(&devmode->dmFields, 0, devmode->dmSize - FIELD_OFFSET(DEVMODEW, dmFields));
if (mode == ENUM_REGISTRY_SETTINGS)
{
TRACE("mode %d (registry) -- getting default mode\n", mode);
return read_registry_settings(devmode);
}
if (macdrv_get_displays(&displays, &num_displays))
goto failed;
if (mode == ENUM_CURRENT_SETTINGS)
{
TRACE("mode %d (current) -- getting current mode\n", mode);
display_mode = CGDisplayCopyDisplayMode(displays[0].displayID);
display_mode_bpp = display_mode_bits_per_pixel(display_mode);
}
else
{
DWORD count, i;
EnterCriticalSection(&modes_section);
if (mode == 0 || !modes)
{
if (modes) CFRelease(modes);
modes = copy_display_modes(displays[0].displayID);
modes_has_8bpp = modes_has_16bpp = FALSE;
if (modes)
{
count = CFArrayGetCount(modes);
for (i = 0; i < count && !(modes_has_8bpp && modes_has_16bpp); i++)
{
CGDisplayModeRef mode = (CGDisplayModeRef)CFArrayGetValueAtIndex(modes, i);
int bpp = display_mode_bits_per_pixel(mode);
if (bpp == 8)
modes_has_8bpp = TRUE;
else if (bpp == 16)
modes_has_16bpp = TRUE;
}
}
}
display_mode = NULL;
if (modes)
{
int default_bpp = get_default_bpp();
DWORD seen_modes = 0;
count = CFArrayGetCount(modes);
for (i = 0; i < count; i++)
{
CGDisplayModeRef candidate = (CGDisplayModeRef)CFArrayGetValueAtIndex(modes, i);
io_flags = CGDisplayModeGetIOFlags(candidate);
if (!(flags & EDS_RAWMODE) &&
(!(io_flags & kDisplayModeValidFlag) || !(io_flags & kDisplayModeSafeFlag)))
continue;
seen_modes++;
if (seen_modes > mode)
{
display_mode = (CGDisplayModeRef)CFRetain(candidate);
display_mode_bpp = display_mode_bits_per_pixel(display_mode);
break;
}
/* We only synthesize modes from those having the default bpp. */
if (display_mode_bits_per_pixel(candidate) != default_bpp)
continue;
if (!modes_has_8bpp)
{
seen_modes++;
if (seen_modes > mode)
{
display_mode = (CGDisplayModeRef)CFRetain(candidate);
display_mode_bpp = 8;
synthesized = TRUE;
break;
}
}
if (!modes_has_16bpp)
{
seen_modes++;
if (seen_modes > mode)
{
display_mode = (CGDisplayModeRef)CFRetain(candidate);
display_mode_bpp = 16;
synthesized = TRUE;
break;
}
}
}
}
LeaveCriticalSection(&modes_section);
}
if (!display_mode)
goto failed;
/* We currently only report modes for the primary display, so it's at (0, 0). */
devmode->dmPosition.x = 0;
devmode->dmPosition.y = 0;
devmode->dmFields |= DM_POSITION;
rotation = CGDisplayRotation(displays[0].displayID);
devmode->dmDisplayOrientation = ((int)((rotation / 90) + 0.5)) % 4;
devmode->dmFields |= DM_DISPLAYORIENTATION;
io_flags = CGDisplayModeGetIOFlags(display_mode);
if (io_flags & kDisplayModeStretchedFlag)
devmode->dmDisplayFixedOutput = DMDFO_STRETCH;
else
devmode->dmDisplayFixedOutput = DMDFO_CENTER;
devmode->dmFields |= DM_DISPLAYFIXEDOUTPUT;
devmode->dmBitsPerPel = display_mode_bpp;
if (devmode->dmBitsPerPel)
devmode->dmFields |= DM_BITSPERPEL;
devmode->dmPelsWidth = CGDisplayModeGetWidth(display_mode);
devmode->dmPelsHeight = CGDisplayModeGetHeight(display_mode);
if (retina_enabled)
{
struct display_mode_descriptor* desc = create_original_display_mode_descriptor(displays[0].displayID);
if (display_mode_matches_descriptor(display_mode, desc))
{
devmode->dmPelsWidth *= 2;
devmode->dmPelsHeight *= 2;
}
free_display_mode_descriptor(desc);
}
devmode->dmFields |= DM_PELSWIDTH | DM_PELSHEIGHT;
devmode->dmDisplayFlags = 0;
if (io_flags & kDisplayModeInterlacedFlag)
devmode->dmDisplayFlags |= DM_INTERLACED;
devmode->dmFields |= DM_DISPLAYFLAGS;
devmode->dmDisplayFrequency = CGDisplayModeGetRefreshRate(display_mode);
if (!devmode->dmDisplayFrequency)
devmode->dmDisplayFrequency = 60;
devmode->dmFields |= DM_DISPLAYFREQUENCY;
CFRelease(display_mode);
macdrv_free_displays(displays);
TRACE("mode %d -- %dx%dx%dbpp @%d Hz", mode,
devmode->dmPelsWidth, devmode->dmPelsHeight, devmode->dmBitsPerPel,
devmode->dmDisplayFrequency);
if (devmode->dmDisplayOrientation)
TRACE(" rotated %u degrees", devmode->dmDisplayOrientation * 90);
if (devmode->dmDisplayFixedOutput == DMDFO_STRETCH)
TRACE(" stretched");
if (devmode->dmDisplayFlags & DM_INTERLACED)
TRACE(" interlaced");
if (synthesized)
TRACE(" (synthesized)");
TRACE("\n");
return TRUE;
failed:
TRACE("mode %d -- not present\n", mode);
if (displays) macdrv_free_displays(displays);
SetLastError(ERROR_NO_MORE_FILES);
return FALSE;
}
/***********************************************************************
* ChangeDisplaySettingsEx (MACDRV.@)
*
*/
LONG CDECL macdrv_ChangeDisplaySettingsEx(LPCWSTR devname, LPDEVMODEW devmode,
HWND hwnd, DWORD flags, LPVOID lpvoid)
{
LONG ret = DISP_CHANGE_BADMODE;
int bpp;
DEVMODEW dm;
BOOL def_mode = TRUE;
struct macdrv_display *displays;
int num_displays;
CFArrayRef display_modes;
struct display_mode_descriptor* desc;
CFIndex count, i, safe, best;
CGDisplayModeRef best_display_mode;
uint32_t best_io_flags;
BOOL best_is_original;
TRACE("%s %p %p 0x%08x %p\n", debugstr_w(devname), devmode, hwnd, flags, lpvoid);
init_original_display_mode();
if (devmode)
{
/* this is the minimal dmSize that XP accepts */
if (devmode->dmSize < FIELD_OFFSET(DEVMODEW, dmFields))
return DISP_CHANGE_FAILED;
if (devmode->dmSize >= FIELD_OFFSET(DEVMODEW, dmFields) + sizeof(devmode->dmFields))
{
if (((devmode->dmFields & DM_BITSPERPEL) && devmode->dmBitsPerPel) ||
((devmode->dmFields & DM_PELSWIDTH) && devmode->dmPelsWidth) ||
((devmode->dmFields & DM_PELSHEIGHT) && devmode->dmPelsHeight) ||
((devmode->dmFields & DM_DISPLAYFREQUENCY) && devmode->dmDisplayFrequency))
def_mode = FALSE;
}
}
if (def_mode)
{
if (!macdrv_EnumDisplaySettingsEx(devname, ENUM_REGISTRY_SETTINGS, &dm, 0))
{
ERR("Default mode not found!\n");
return DISP_CHANGE_BADMODE;
}
TRACE("Return to original display mode\n");
devmode = &dm;
}
if ((devmode->dmFields & (DM_PELSWIDTH | DM_PELSHEIGHT)) != (DM_PELSWIDTH | DM_PELSHEIGHT))
{
WARN("devmode doesn't specify the resolution: %04x\n", devmode->dmFields);
return DISP_CHANGE_BADMODE;
}
if (macdrv_get_displays(&displays, &num_displays))
return DISP_CHANGE_FAILED;
display_modes = copy_display_modes(displays[0].displayID);
if (!display_modes)
{
macdrv_free_displays(displays);
return DISP_CHANGE_FAILED;
}
bpp = get_default_bpp();
if ((devmode->dmFields & DM_BITSPERPEL) && devmode->dmBitsPerPel != bpp)
TRACE("using default %d bpp instead of caller's request %d bpp\n", bpp, devmode->dmBitsPerPel);
TRACE("looking for %dx%dx%dbpp @%d Hz",
(devmode->dmFields & DM_PELSWIDTH ? devmode->dmPelsWidth : 0),
(devmode->dmFields & DM_PELSHEIGHT ? devmode->dmPelsHeight : 0),
bpp,
(devmode->dmFields & DM_DISPLAYFREQUENCY ? devmode->dmDisplayFrequency : 0));
if (devmode->dmFields & DM_DISPLAYFIXEDOUTPUT)
TRACE(" %sstretched", devmode->dmDisplayFixedOutput == DMDFO_STRETCH ? "" : "un");
if (devmode->dmFields & DM_DISPLAYFLAGS)
TRACE(" %sinterlaced", devmode->dmDisplayFlags & DM_INTERLACED ? "" : "non-");
TRACE("\n");
desc = create_original_display_mode_descriptor(displays[0].displayID);
safe = -1;
best_display_mode = NULL;
count = CFArrayGetCount(display_modes);
for (i = 0; i < count; i++)
{
CGDisplayModeRef display_mode = (CGDisplayModeRef)CFArrayGetValueAtIndex(display_modes, i);
BOOL is_original = display_mode_matches_descriptor(display_mode, desc);
uint32_t io_flags = CGDisplayModeGetIOFlags(display_mode);
int mode_bpp = display_mode_bits_per_pixel(display_mode);
size_t width = CGDisplayModeGetWidth(display_mode);
size_t height = CGDisplayModeGetHeight(display_mode);
if (is_original && retina_enabled)
{
width *= 2;
height *= 2;
}
if (!(io_flags & kDisplayModeValidFlag) || !(io_flags & kDisplayModeSafeFlag))
continue;
safe++;
if (bpp != mode_bpp)
continue;
if (devmode->dmFields & DM_PELSWIDTH)
{
if (devmode->dmPelsWidth != width)
continue;
}
if (devmode->dmFields & DM_PELSHEIGHT)
{
if (devmode->dmPelsHeight != height)
continue;
}
if ((devmode->dmFields & DM_DISPLAYFREQUENCY) && devmode->dmDisplayFrequency != 0)
{
double refresh_rate = CGDisplayModeGetRefreshRate(display_mode);
if (!refresh_rate)
refresh_rate = 60;
if (devmode->dmDisplayFrequency != (DWORD)refresh_rate)
continue;
}
if (devmode->dmFields & DM_DISPLAYFLAGS)
{
if (!(devmode->dmDisplayFlags & DM_INTERLACED) != !(io_flags & kDisplayModeInterlacedFlag))
continue;
}
else if (best_display_mode)
{
if (io_flags & kDisplayModeInterlacedFlag && !(best_io_flags & kDisplayModeInterlacedFlag))
continue;
else if (!(io_flags & kDisplayModeInterlacedFlag) && best_io_flags & kDisplayModeInterlacedFlag)
goto better;
}
if (devmode->dmFields & DM_DISPLAYFIXEDOUTPUT)
{
if (!(devmode->dmDisplayFixedOutput == DMDFO_STRETCH) != !(io_flags & kDisplayModeStretchedFlag))
continue;
}
else if (best_display_mode)
{
if (io_flags & kDisplayModeStretchedFlag && !(best_io_flags & kDisplayModeStretchedFlag))
continue;
else if (!(io_flags & kDisplayModeStretchedFlag) && best_io_flags & kDisplayModeStretchedFlag)
goto better;
}
if (best_display_mode)
continue;
better:
best_display_mode = display_mode;
best = safe;
best_io_flags = io_flags;
best_is_original = is_original;
}
if (best_display_mode)
{
/* we have a valid mode */
TRACE("Requested display settings match mode %ld\n", best);
if ((flags & CDS_UPDATEREGISTRY) && !write_registry_settings(devmode))
{
WARN("Failed to update registry\n");
ret = DISP_CHANGE_NOTUPDATED;
}
else if (flags & (CDS_TEST | CDS_NORESET))
ret = DISP_CHANGE_SUCCESSFUL;
else if (macdrv_set_display_mode(&displays[0], best_display_mode))
{
int mode_bpp = display_mode_bits_per_pixel(best_display_mode);
size_t width = CGDisplayModeGetWidth(best_display_mode);
size_t height = CGDisplayModeGetHeight(best_display_mode);
if (best_is_original && retina_enabled)
{
width *= 2;
height *= 2;
}
SendMessageW(GetDesktopWindow(), WM_MACDRV_UPDATE_DESKTOP_RECT, mode_bpp,
MAKELPARAM(width, height));
ret = DISP_CHANGE_SUCCESSFUL;
}
else
{
WARN("Failed to set display mode\n");
ret = DISP_CHANGE_FAILED;
}
}
else
{
/* no valid modes found */
ERR("No matching mode found %ux%ux%d @%u!\n", devmode->dmPelsWidth, devmode->dmPelsHeight,
bpp, devmode->dmDisplayFrequency);
}
free_display_mode_descriptor(desc);
CFRelease(display_modes);
macdrv_free_displays(displays);
return ret;
}
