diff options
Diffstat (limited to 'libs/glfw-3.3.8/src/cocoa_monitor.m')
| -rw-r--r-- | libs/glfw-3.3.8/src/cocoa_monitor.m | 627 |
1 files changed, 627 insertions, 0 deletions
diff --git a/libs/glfw-3.3.8/src/cocoa_monitor.m b/libs/glfw-3.3.8/src/cocoa_monitor.m new file mode 100644 index 0000000..7769bb7 --- /dev/null +++ b/libs/glfw-3.3.8/src/cocoa_monitor.m @@ -0,0 +1,627 @@ +//======================================================================== +// GLFW 3.3 macOS - www.glfw.org +//------------------------------------------------------------------------ +// Copyright (c) 2002-2006 Marcus Geelnard +// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org> +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would +// be appreciated but is not required. +// +// 2. Altered source versions must be plainly marked as such, and must not +// be misrepresented as being the original software. +// +// 3. This notice may not be removed or altered from any source +// distribution. +// +//======================================================================== +// It is fine to use C99 in this file because it will not be built with VS +//======================================================================== + +#include "internal.h" + +#include <stdlib.h> +#include <limits.h> +#include <math.h> + +#include <IOKit/graphics/IOGraphicsLib.h> +#include <ApplicationServices/ApplicationServices.h> + + +// Get the name of the specified display, or NULL +// +static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen) +{ + // IOKit doesn't work on Apple Silicon anymore + // Luckily, 10.15 introduced -[NSScreen localizedName]. + // Use it if available, and fall back to IOKit otherwise. + if (screen) + { + if ([screen respondsToSelector:@selector(localizedName)]) + { + NSString* name = [screen valueForKey:@"localizedName"]; + if (name) + return _glfw_strdup([name UTF8String]); + } + } + + io_iterator_t it; + io_service_t service; + CFDictionaryRef info; + + if (IOServiceGetMatchingServices(MACH_PORT_NULL, + IOServiceMatching("IODisplayConnect"), + &it) != 0) + { + // This may happen if a desktop Mac is running headless + return _glfw_strdup("Display"); + } + + while ((service = IOIteratorNext(it)) != 0) + { + info = IODisplayCreateInfoDictionary(service, + kIODisplayOnlyPreferredName); + + CFNumberRef vendorIDRef = + CFDictionaryGetValue(info, CFSTR(kDisplayVendorID)); + CFNumberRef productIDRef = + CFDictionaryGetValue(info, CFSTR(kDisplayProductID)); + if (!vendorIDRef || !productIDRef) + { + CFRelease(info); + continue; + } + + unsigned int vendorID, productID; + CFNumberGetValue(vendorIDRef, kCFNumberIntType, &vendorID); + CFNumberGetValue(productIDRef, kCFNumberIntType, &productID); + + if (CGDisplayVendorNumber(displayID) == vendorID && + CGDisplayModelNumber(displayID) == productID) + { + // Info dictionary is used and freed below + break; + } + + CFRelease(info); + } + + IOObjectRelease(it); + + if (!service) + return _glfw_strdup("Display"); + + CFDictionaryRef names = + CFDictionaryGetValue(info, CFSTR(kDisplayProductName)); + + CFStringRef nameRef; + + if (!names || !CFDictionaryGetValueIfPresent(names, CFSTR("en_US"), + (const void**) &nameRef)) + { + // This may happen if a desktop Mac is running headless + CFRelease(info); + return _glfw_strdup("Display"); + } + + const CFIndex size = + CFStringGetMaximumSizeForEncoding(CFStringGetLength(nameRef), + kCFStringEncodingUTF8); + char* name = calloc(size + 1, 1); + CFStringGetCString(nameRef, name, size, kCFStringEncodingUTF8); + + CFRelease(info); + return name; +} + +// Check whether the display mode should be included in enumeration +// +static GLFWbool modeIsGood(CGDisplayModeRef mode) +{ + uint32_t flags = CGDisplayModeGetIOFlags(mode); + + if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag)) + return GLFW_FALSE; + if (flags & kDisplayModeInterlacedFlag) + return GLFW_FALSE; + if (flags & kDisplayModeStretchedFlag) + return GLFW_FALSE; + +#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100 + CFStringRef format = CGDisplayModeCopyPixelEncoding(mode); + if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) && + CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0)) + { + CFRelease(format); + return GLFW_FALSE; + } + + CFRelease(format); +#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */ + return GLFW_TRUE; +} + +// Convert Core Graphics display mode to GLFW video mode +// +static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode, + double fallbackRefreshRate) +{ + GLFWvidmode result; + result.width = (int) CGDisplayModeGetWidth(mode); + result.height = (int) CGDisplayModeGetHeight(mode); + result.refreshRate = (int) round(CGDisplayModeGetRefreshRate(mode)); + + if (result.refreshRate == 0) + result.refreshRate = (int) round(fallbackRefreshRate); + +#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100 + CFStringRef format = CGDisplayModeCopyPixelEncoding(mode); + if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0) + { + result.redBits = 5; + result.greenBits = 5; + result.blueBits = 5; + } + else +#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */ + { + result.redBits = 8; + result.greenBits = 8; + result.blueBits = 8; + } + +#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100 + CFRelease(format); +#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */ + return result; +} + +// Starts reservation for display fading +// +static CGDisplayFadeReservationToken beginFadeReservation(void) +{ + CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken; + + if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess) + { + CGDisplayFade(token, 0.3, + kCGDisplayBlendNormal, + kCGDisplayBlendSolidColor, + 0.0, 0.0, 0.0, + TRUE); + } + + return token; +} + +// Ends reservation for display fading +// +static void endFadeReservation(CGDisplayFadeReservationToken token) +{ + if (token != kCGDisplayFadeReservationInvalidToken) + { + CGDisplayFade(token, 0.5, + kCGDisplayBlendSolidColor, + kCGDisplayBlendNormal, + 0.0, 0.0, 0.0, + FALSE); + CGReleaseDisplayFadeReservation(token); + } +} + +// Returns the display refresh rate queried from the I/O registry +// +static double getFallbackRefreshRate(CGDirectDisplayID displayID) +{ + double refreshRate = 60.0; + + io_iterator_t it; + io_service_t service; + + if (IOServiceGetMatchingServices(MACH_PORT_NULL, + IOServiceMatching("IOFramebuffer"), + &it) != 0) + { + return refreshRate; + } + + while ((service = IOIteratorNext(it)) != 0) + { + const CFNumberRef indexRef = + IORegistryEntryCreateCFProperty(service, + CFSTR("IOFramebufferOpenGLIndex"), + kCFAllocatorDefault, + kNilOptions); + if (!indexRef) + continue; + + uint32_t index = 0; + CFNumberGetValue(indexRef, kCFNumberIntType, &index); + CFRelease(indexRef); + + if (CGOpenGLDisplayMaskToDisplayID(1 << index) != displayID) + continue; + + const CFNumberRef clockRef = + IORegistryEntryCreateCFProperty(service, + CFSTR("IOFBCurrentPixelClock"), + kCFAllocatorDefault, + kNilOptions); + const CFNumberRef countRef = + IORegistryEntryCreateCFProperty(service, + CFSTR("IOFBCurrentPixelCount"), + kCFAllocatorDefault, + kNilOptions); + + uint32_t clock = 0, count = 0; + + if (clockRef) + { + CFNumberGetValue(clockRef, kCFNumberIntType, &clock); + CFRelease(clockRef); + } + + if (countRef) + { + CFNumberGetValue(countRef, kCFNumberIntType, &count); + CFRelease(countRef); + } + + if (clock > 0 && count > 0) + refreshRate = clock / (double) count; + + break; + } + + IOObjectRelease(it); + return refreshRate; +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW internal API ////// +////////////////////////////////////////////////////////////////////////// + +// Poll for changes in the set of connected monitors +// +void _glfwPollMonitorsNS(void) +{ + uint32_t displayCount; + CGGetOnlineDisplayList(0, NULL, &displayCount); + CGDirectDisplayID* displays = calloc(displayCount, sizeof(CGDirectDisplayID)); + CGGetOnlineDisplayList(displayCount, displays, &displayCount); + + for (int i = 0; i < _glfw.monitorCount; i++) + _glfw.monitors[i]->ns.screen = nil; + + _GLFWmonitor** disconnected = NULL; + uint32_t disconnectedCount = _glfw.monitorCount; + if (disconnectedCount) + { + disconnected = calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*)); + memcpy(disconnected, + _glfw.monitors, + _glfw.monitorCount * sizeof(_GLFWmonitor*)); + } + + for (uint32_t i = 0; i < displayCount; i++) + { + if (CGDisplayIsAsleep(displays[i])) + continue; + + const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]); + NSScreen* screen = nil; + + for (screen in [NSScreen screens]) + { + NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"]; + + // HACK: Compare unit numbers instead of display IDs to work around + // display replacement on machines with automatic graphics + // switching + if (CGDisplayUnitNumber([screenNumber unsignedIntValue]) == unitNumber) + break; + } + + // HACK: Compare unit numbers instead of display IDs to work around + // display replacement on machines with automatic graphics + // switching + uint32_t j; + for (j = 0; j < disconnectedCount; j++) + { + if (disconnected[j] && disconnected[j]->ns.unitNumber == unitNumber) + { + disconnected[j]->ns.screen = screen; + disconnected[j] = NULL; + break; + } + } + + if (j < disconnectedCount) + continue; + + const CGSize size = CGDisplayScreenSize(displays[i]); + char* name = getMonitorName(displays[i], screen); + if (!name) + continue; + + _GLFWmonitor* monitor = _glfwAllocMonitor(name, size.width, size.height); + monitor->ns.displayID = displays[i]; + monitor->ns.unitNumber = unitNumber; + monitor->ns.screen = screen; + + free(name); + + CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displays[i]); + if (CGDisplayModeGetRefreshRate(mode) == 0.0) + monitor->ns.fallbackRefreshRate = getFallbackRefreshRate(displays[i]); + CGDisplayModeRelease(mode); + + _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST); + } + + for (uint32_t i = 0; i < disconnectedCount; i++) + { + if (disconnected[i]) + _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0); + } + + free(disconnected); + free(displays); +} + +// Change the current video mode +// +void _glfwSetVideoModeNS(_GLFWmonitor* monitor, const GLFWvidmode* desired) +{ + GLFWvidmode current; + _glfwPlatformGetVideoMode(monitor, ¤t); + + const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired); + if (_glfwCompareVideoModes(¤t, best) == 0) + return; + + CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL); + const CFIndex count = CFArrayGetCount(modes); + CGDisplayModeRef native = NULL; + + for (CFIndex i = 0; i < count; i++) + { + CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i); + if (!modeIsGood(dm)) + continue; + + const GLFWvidmode mode = + vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate); + if (_glfwCompareVideoModes(best, &mode) == 0) + { + native = dm; + break; + } + } + + if (native) + { + if (monitor->ns.previousMode == NULL) + monitor->ns.previousMode = CGDisplayCopyDisplayMode(monitor->ns.displayID); + + CGDisplayFadeReservationToken token = beginFadeReservation(); + CGDisplaySetDisplayMode(monitor->ns.displayID, native, NULL); + endFadeReservation(token); + } + + CFRelease(modes); +} + +// Restore the previously saved (original) video mode +// +void _glfwRestoreVideoModeNS(_GLFWmonitor* monitor) +{ + if (monitor->ns.previousMode) + { + CGDisplayFadeReservationToken token = beginFadeReservation(); + CGDisplaySetDisplayMode(monitor->ns.displayID, + monitor->ns.previousMode, NULL); + endFadeReservation(token); + + CGDisplayModeRelease(monitor->ns.previousMode); + monitor->ns.previousMode = NULL; + } +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW platform API ////// +////////////////////////////////////////////////////////////////////////// + +void _glfwPlatformFreeMonitor(_GLFWmonitor* monitor) +{ +} + +void _glfwPlatformGetMonitorPos(_GLFWmonitor* monitor, int* xpos, int* ypos) +{ + @autoreleasepool { + + const CGRect bounds = CGDisplayBounds(monitor->ns.displayID); + + if (xpos) + *xpos = (int) bounds.origin.x; + if (ypos) + *ypos = (int) bounds.origin.y; + + } // autoreleasepool +} + +void _glfwPlatformGetMonitorContentScale(_GLFWmonitor* monitor, + float* xscale, float* yscale) +{ + @autoreleasepool { + + if (!monitor->ns.screen) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Cocoa: Cannot query content scale without screen"); + } + + const NSRect points = [monitor->ns.screen frame]; + const NSRect pixels = [monitor->ns.screen convertRectToBacking:points]; + + if (xscale) + *xscale = (float) (pixels.size.width / points.size.width); + if (yscale) + *yscale = (float) (pixels.size.height / points.size.height); + + } // autoreleasepool +} + +void _glfwPlatformGetMonitorWorkarea(_GLFWmonitor* monitor, + int* xpos, int* ypos, + int* width, int* height) +{ + @autoreleasepool { + + if (!monitor->ns.screen) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Cocoa: Cannot query workarea without screen"); + } + + const NSRect frameRect = [monitor->ns.screen visibleFrame]; + + if (xpos) + *xpos = frameRect.origin.x; + if (ypos) + *ypos = _glfwTransformYNS(frameRect.origin.y + frameRect.size.height - 1); + if (width) + *width = frameRect.size.width; + if (height) + *height = frameRect.size.height; + + } // autoreleasepool +} + +GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count) +{ + @autoreleasepool { + + *count = 0; + + CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL); + const CFIndex found = CFArrayGetCount(modes); + GLFWvidmode* result = calloc(found, sizeof(GLFWvidmode)); + + for (CFIndex i = 0; i < found; i++) + { + CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i); + if (!modeIsGood(dm)) + continue; + + const GLFWvidmode mode = + vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate); + CFIndex j; + + for (j = 0; j < *count; j++) + { + if (_glfwCompareVideoModes(result + j, &mode) == 0) + break; + } + + // Skip duplicate modes + if (j < *count) + continue; + + (*count)++; + result[*count - 1] = mode; + } + + CFRelease(modes); + return result; + + } // autoreleasepool +} + +void _glfwPlatformGetVideoMode(_GLFWmonitor* monitor, GLFWvidmode *mode) +{ + @autoreleasepool { + + CGDisplayModeRef native = CGDisplayCopyDisplayMode(monitor->ns.displayID); + *mode = vidmodeFromCGDisplayMode(native, monitor->ns.fallbackRefreshRate); + CGDisplayModeRelease(native); + + } // autoreleasepool +} + +GLFWbool _glfwPlatformGetGammaRamp(_GLFWmonitor* monitor, GLFWgammaramp* ramp) +{ + @autoreleasepool { + + uint32_t size = CGDisplayGammaTableCapacity(monitor->ns.displayID); + CGGammaValue* values = calloc(size * 3, sizeof(CGGammaValue)); + + CGGetDisplayTransferByTable(monitor->ns.displayID, + size, + values, + values + size, + values + size * 2, + &size); + + _glfwAllocGammaArrays(ramp, size); + + for (uint32_t i = 0; i < size; i++) + { + ramp->red[i] = (unsigned short) (values[i] * 65535); + ramp->green[i] = (unsigned short) (values[i + size] * 65535); + ramp->blue[i] = (unsigned short) (values[i + size * 2] * 65535); + } + + free(values); + return GLFW_TRUE; + + } // autoreleasepool +} + +void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp) +{ + @autoreleasepool { + + CGGammaValue* values = calloc(ramp->size * 3, sizeof(CGGammaValue)); + + for (unsigned int i = 0; i < ramp->size; i++) + { + values[i] = ramp->red[i] / 65535.f; + values[i + ramp->size] = ramp->green[i] / 65535.f; + values[i + ramp->size * 2] = ramp->blue[i] / 65535.f; + } + + CGSetDisplayTransferByTable(monitor->ns.displayID, + ramp->size, + values, + values + ramp->size, + values + ramp->size * 2); + + free(values); + + } // autoreleasepool +} + + +////////////////////////////////////////////////////////////////////////// +////// GLFW native API ////// +////////////////////////////////////////////////////////////////////////// + +GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* handle) +{ + _GLFWmonitor* monitor = (_GLFWmonitor*) handle; + _GLFW_REQUIRE_INIT_OR_RETURN(kCGNullDirectDisplay); + return monitor->ns.displayID; +} + |