static int mac_shadow_detect_monitors(macShadowSubsystem* subsystem)
{
size_t wide, high;
MONITOR_DEF* monitor;
CGDirectDisplayID displayId;
displayId = CGMainDisplayID();
CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displayId);
subsystem->pixelWidth = CGDisplayModeGetPixelWidth(mode);
subsystem->pixelHeight = CGDisplayModeGetPixelHeight(mode);
wide = CGDisplayPixelsWide(displayId);
high = CGDisplayPixelsHigh(displayId);
CGDisplayModeRelease(mode);
subsystem->retina = ((subsystem->pixelWidth / wide) == 2) ? TRUE : FALSE;
if (subsystem->retina)
{
subsystem->width = wide;
subsystem->height = high;
}
else
{
subsystem->width = subsystem->pixelWidth;
subsystem->height = subsystem->pixelHeight;
}
subsystem->numMonitors = 1;
monitor = &(subsystem->monitors[0]);
monitor->left = 0;
monitor->top = 0;
monitor->right = subsystem->width;
monitor->bottom = subsystem->height;
monitor->flags = 1;
return 1;
}
static BOOL display_mode_matches_descriptor(CGDisplayModeRef mode, const struct display_mode_descriptor* desc)
{
DWORD mode_io_flags;
double mode_refresh;
CFStringRef mode_pixel_encoding;
if (!desc)
return FALSE;
if (CGDisplayModeGetWidth(mode) != desc->width ||
CGDisplayModeGetHeight(mode) != desc->height)
return FALSE;
mode_io_flags = CGDisplayModeGetIOFlags(mode);
if ((desc->io_flags ^ mode_io_flags) & (kDisplayModeValidFlag | kDisplayModeSafeFlag | kDisplayModeStretchedFlag |
kDisplayModeInterlacedFlag | kDisplayModeTelevisionFlag))
return FALSE;
mode_refresh = CGDisplayModeGetRefreshRate(mode);
if (!mode_refresh)
mode_refresh = 60;
if (fabs(desc->refresh - mode_refresh) > 0.1)
return FALSE;
#if defined(MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (CGDisplayModeGetPixelWidth != NULL && CGDisplayModeGetPixelHeight != NULL)
{
if (CGDisplayModeGetPixelWidth(mode) != desc->pixel_width ||
CGDisplayModeGetPixelHeight(mode) != desc->pixel_height)
return FALSE;
}
else
#endif
if (CGDisplayModeGetWidth(mode) != desc->pixel_width ||
CGDisplayModeGetHeight(mode) != desc->pixel_height)
return FALSE;
mode_pixel_encoding = CGDisplayModeCopyPixelEncoding(mode);
if (!CFEqual(mode_pixel_encoding, desc->pixel_encoding))
{
CFRelease(mode_pixel_encoding);
return FALSE;
}
CFRelease(mode_pixel_encoding);
return TRUE;
}
/***********************************************************************
* 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;
}
static BOOL write_display_settings(HKEY parent_hkey, CGDirectDisplayID displayID)
{
BOOL ret = FALSE;
char display_key_name[19];
HKEY display_hkey;
CGDisplayModeRef display_mode;
DWORD val;
CFStringRef pixel_encoding;
size_t len;
WCHAR* buf = NULL;
snprintf(display_key_name, sizeof(display_key_name), "Display 0x%08x", CGDisplayUnitNumber(displayID));
/* @@ Wine registry key: HKLM\Software\Wine\Mac Driver\Initial Display Mode\Display 0xnnnnnnnn */
if (RegCreateKeyExA(parent_hkey, display_key_name, 0, NULL,
REG_OPTION_VOLATILE, KEY_WRITE, NULL, &display_hkey, NULL))
return FALSE;
display_mode = CGDisplayCopyDisplayMode(displayID);
if (!display_mode)
goto fail;
val = CGDisplayModeGetWidth(display_mode);
if (RegSetValueExA(display_hkey, "Width", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
val = CGDisplayModeGetHeight(display_mode);
if (RegSetValueExA(display_hkey, "Height", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
val = CGDisplayModeGetRefreshRate(display_mode) * 100;
if (RegSetValueExA(display_hkey, "RefreshRateTimes100", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
val = CGDisplayModeGetIOFlags(display_mode);
if (RegSetValueExA(display_hkey, "IOFlags", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
#if defined(MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_8
if (CGDisplayModeGetPixelWidth != NULL && CGDisplayModeGetPixelHeight != NULL)
{
val = CGDisplayModeGetPixelWidth(display_mode);
if (RegSetValueExA(display_hkey, "PixelWidth", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
val = CGDisplayModeGetPixelHeight(display_mode);
if (RegSetValueExA(display_hkey, "PixelHeight", 0, REG_DWORD, (const BYTE*)&val, sizeof(val)))
goto fail;
}
#endif
pixel_encoding = CGDisplayModeCopyPixelEncoding(display_mode);
len = CFStringGetLength(pixel_encoding);
buf = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
CFStringGetCharacters(pixel_encoding, CFRangeMake(0, len), (UniChar*)buf);
buf[len] = 0;
CFRelease(pixel_encoding);
if (RegSetValueExW(display_hkey, pixelencodingW, 0, REG_SZ, (const BYTE*)buf, (len + 1) * sizeof(WCHAR)))
goto fail;
ret = TRUE;
fail:
HeapFree(GetProcessHeap(), 0, buf);
if (display_mode) CGDisplayModeRelease(display_mode);
RegCloseKey(display_hkey);
if (!ret)
RegDeleteKeyA(parent_hkey, display_key_name);
return ret;
}