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Diffstat (limited to 'source/3rd-party/SDL2/src/video/uikit/SDL_uikitmodes.m')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/uikit/SDL_uikitmodes.m | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmodes.m b/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmodes.m new file mode 100644 index 0000000..7ddf107 --- /dev/null +++ b/source/3rd-party/SDL2/src/video/uikit/SDL_uikitmodes.m @@ -0,0 +1,380 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.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. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_UIKIT + +#include "SDL_assert.h" +#include "SDL_uikitmodes.h" + +#include "../../events/SDL_events_c.h" + +@implementation SDL_DisplayData + +@synthesize uiscreen; + +@end + +@implementation SDL_DisplayModeData + +@synthesize uiscreenmode; + +@end + + +static int +UIKit_AllocateDisplayModeData(SDL_DisplayMode * mode, + UIScreenMode * uiscreenmode) +{ + SDL_DisplayModeData *data = nil; + + if (uiscreenmode != nil) { + /* Allocate the display mode data */ + data = [[SDL_DisplayModeData alloc] init]; + if (!data) { + return SDL_OutOfMemory(); + } + + data.uiscreenmode = uiscreenmode; + } + + mode->driverdata = (void *) CFBridgingRetain(data); + + return 0; +} + +static void +UIKit_FreeDisplayModeData(SDL_DisplayMode * mode) +{ + if (mode->driverdata != NULL) { + CFRelease(mode->driverdata); + mode->driverdata = NULL; + } +} + +static NSUInteger +UIKit_GetDisplayModeRefreshRate(UIScreen *uiscreen) +{ +#ifdef __IPHONE_10_3 + if ([uiscreen respondsToSelector:@selector(maximumFramesPerSecond)]) { + return uiscreen.maximumFramesPerSecond; + } +#endif + return 0; +} + +static int +UIKit_AddSingleDisplayMode(SDL_VideoDisplay * display, int w, int h, + UIScreen * uiscreen, UIScreenMode * uiscreenmode) +{ + SDL_DisplayMode mode; + SDL_zero(mode); + + if (UIKit_AllocateDisplayModeData(&mode, uiscreenmode) < 0) { + return -1; + } + + mode.format = SDL_PIXELFORMAT_ABGR8888; + mode.refresh_rate = (int) UIKit_GetDisplayModeRefreshRate(uiscreen); + mode.w = w; + mode.h = h; + + if (SDL_AddDisplayMode(display, &mode)) { + return 0; + } else { + UIKit_FreeDisplayModeData(&mode); + return -1; + } +} + +static int +UIKit_AddDisplayMode(SDL_VideoDisplay * display, int w, int h, UIScreen * uiscreen, + UIScreenMode * uiscreenmode, SDL_bool addRotation) +{ + if (UIKit_AddSingleDisplayMode(display, w, h, uiscreen, uiscreenmode) < 0) { + return -1; + } + + if (addRotation) { + /* Add the rotated version */ + if (UIKit_AddSingleDisplayMode(display, h, w, uiscreen, uiscreenmode) < 0) { + return -1; + } + } + + return 0; +} + +static int +UIKit_AddDisplay(UIScreen *uiscreen) +{ + UIScreenMode *uiscreenmode = uiscreen.currentMode; + CGSize size = uiscreen.bounds.size; + SDL_VideoDisplay display; + SDL_DisplayMode mode; + SDL_zero(mode); + + /* Make sure the width/height are oriented correctly */ + if (UIKit_IsDisplayLandscape(uiscreen) != (size.width > size.height)) { + CGFloat height = size.width; + size.width = size.height; + size.height = height; + } + + mode.format = SDL_PIXELFORMAT_ABGR8888; + mode.refresh_rate = (int) UIKit_GetDisplayModeRefreshRate(uiscreen); + mode.w = (int) size.width; + mode.h = (int) size.height; + + if (UIKit_AllocateDisplayModeData(&mode, uiscreenmode) < 0) { + return -1; + } + + SDL_zero(display); + display.desktop_mode = mode; + display.current_mode = mode; + + /* Allocate the display data */ + SDL_DisplayData *data = [[SDL_DisplayData alloc] init]; + if (!data) { + UIKit_FreeDisplayModeData(&display.desktop_mode); + return SDL_OutOfMemory(); + } + + data.uiscreen = uiscreen; + + display.driverdata = (void *) CFBridgingRetain(data); + SDL_AddVideoDisplay(&display); + + return 0; +} + +SDL_bool +UIKit_IsDisplayLandscape(UIScreen *uiscreen) +{ +#if !TARGET_OS_TV + if (uiscreen == [UIScreen mainScreen]) { + return UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation); + } else +#endif /* !TARGET_OS_TV */ + { + CGSize size = uiscreen.bounds.size; + return (size.width > size.height); + } +} + +int +UIKit_InitModes(_THIS) +{ + @autoreleasepool { + for (UIScreen *uiscreen in [UIScreen screens]) { + if (UIKit_AddDisplay(uiscreen) < 0) { + return -1; + } + } +#if !TARGET_OS_TV + SDL_OnApplicationDidChangeStatusBarOrientation(); +#endif + } + + return 0; +} + +void +UIKit_GetDisplayModes(_THIS, SDL_VideoDisplay * display) +{ + @autoreleasepool { + SDL_DisplayData *data = (__bridge SDL_DisplayData *) display->driverdata; + + SDL_bool isLandscape = UIKit_IsDisplayLandscape(data.uiscreen); + SDL_bool addRotation = (data.uiscreen == [UIScreen mainScreen]); + CGFloat scale = data.uiscreen.scale; + NSArray *availableModes = nil; + +#if TARGET_OS_TV + addRotation = SDL_FALSE; + availableModes = @[data.uiscreen.currentMode]; +#else + availableModes = data.uiscreen.availableModes; +#endif + +#ifdef __IPHONE_8_0 + /* The UIScreenMode of an iPhone 6 Plus should be 1080x1920 rather than + * 1242x2208 (414x736@3x), so we should use the native scale. */ + if ([data.uiscreen respondsToSelector:@selector(nativeScale)]) { + scale = data.uiscreen.nativeScale; + } +#endif + + for (UIScreenMode *uimode in availableModes) { + /* The size of a UIScreenMode is in pixels, but we deal exclusively + * in points (except in SDL_GL_GetDrawableSize.) */ + int w = (int)(uimode.size.width / scale); + int h = (int)(uimode.size.height / scale); + + /* Make sure the width/height are oriented correctly */ + if (isLandscape != (w > h)) { + int tmp = w; + w = h; + h = tmp; + } + + UIKit_AddDisplayMode(display, w, h, data.uiscreen, uimode, addRotation); + } + } +} + +int +UIKit_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode) +{ + @autoreleasepool { + SDL_DisplayData *data = (__bridge SDL_DisplayData *) display->driverdata; + +#if !TARGET_OS_TV + SDL_DisplayModeData *modedata = (__bridge SDL_DisplayModeData *)mode->driverdata; + [data.uiscreen setCurrentMode:modedata.uiscreenmode]; +#endif + + if (data.uiscreen == [UIScreen mainScreen]) { + /* [UIApplication setStatusBarOrientation:] no longer works reliably + * in recent iOS versions, so we can't rotate the screen when setting + * the display mode. */ + if (mode->w > mode->h) { + if (!UIKit_IsDisplayLandscape(data.uiscreen)) { + return SDL_SetError("Screen orientation does not match display mode size"); + } + } else if (mode->w < mode->h) { + if (UIKit_IsDisplayLandscape(data.uiscreen)) { + return SDL_SetError("Screen orientation does not match display mode size"); + } + } + } + } + + return 0; +} + +int +UIKit_GetDisplayUsableBounds(_THIS, SDL_VideoDisplay * display, SDL_Rect * rect) +{ + @autoreleasepool { + int displayIndex = (int) (display - _this->displays); + SDL_DisplayData *data = (__bridge SDL_DisplayData *) display->driverdata; + CGRect frame = data.uiscreen.bounds; + + /* the default function iterates displays to make a fake offset, + as if all the displays were side-by-side, which is fine for iOS. */ + if (SDL_GetDisplayBounds(displayIndex, rect) < 0) { + return -1; + } + +#if !TARGET_OS_TV && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0 + if (!UIKit_IsSystemVersionAtLeast(7.0)) { + frame = [data.uiscreen applicationFrame]; + } +#endif + + rect->x += frame.origin.x; + rect->y += frame.origin.y; + rect->w = frame.size.width; + rect->h = frame.size.height; + } + + return 0; +} + +void +UIKit_QuitModes(_THIS) +{ + /* Release Objective-C objects, so higher level doesn't free() them. */ + int i, j; + @autoreleasepool { + for (i = 0; i < _this->num_displays; i++) { + SDL_VideoDisplay *display = &_this->displays[i]; + + UIKit_FreeDisplayModeData(&display->desktop_mode); + for (j = 0; j < display->num_display_modes; j++) { + SDL_DisplayMode *mode = &display->display_modes[j]; + UIKit_FreeDisplayModeData(mode); + } + + if (display->driverdata != NULL) { + CFRelease(display->driverdata); + display->driverdata = NULL; + } + } + } +} + +#if !TARGET_OS_TV +void SDL_OnApplicationDidChangeStatusBarOrientation() +{ + BOOL isLandscape = UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation); + SDL_VideoDisplay *display = SDL_GetDisplay(0); + + if (display) { + SDL_DisplayMode *desktopmode = &display->desktop_mode; + SDL_DisplayMode *currentmode = &display->current_mode; + SDL_DisplayOrientation orientation = SDL_ORIENTATION_UNKNOWN; + + /* The desktop display mode should be kept in sync with the screen + * orientation so that updating a window's fullscreen state to + * SDL_WINDOW_FULLSCREEN_DESKTOP keeps the window dimensions in the + * correct orientation. */ + if (isLandscape != (desktopmode->w > desktopmode->h)) { + int height = desktopmode->w; + desktopmode->w = desktopmode->h; + desktopmode->h = height; + } + + /* Same deal with the current mode + SDL_GetCurrentDisplayMode. */ + if (isLandscape != (currentmode->w > currentmode->h)) { + int height = currentmode->w; + currentmode->w = currentmode->h; + currentmode->h = height; + } + + switch ([UIApplication sharedApplication].statusBarOrientation) { + case UIInterfaceOrientationPortrait: + orientation = SDL_ORIENTATION_PORTRAIT; + break; + case UIInterfaceOrientationPortraitUpsideDown: + orientation = SDL_ORIENTATION_PORTRAIT_FLIPPED; + break; + case UIInterfaceOrientationLandscapeLeft: + /* Bug: UIInterfaceOrientationLandscapeLeft/Right are reversed - http://openradar.appspot.com/7216046 */ + orientation = SDL_ORIENTATION_LANDSCAPE_FLIPPED; + break; + case UIInterfaceOrientationLandscapeRight: + /* Bug: UIInterfaceOrientationLandscapeLeft/Right are reversed - http://openradar.appspot.com/7216046 */ + orientation = SDL_ORIENTATION_LANDSCAPE; + break; + default: + break; + } + SDL_SendDisplayEvent(display, SDL_DISPLAYEVENT_ORIENTATION, orientation); + } +} +#endif /* !TARGET_OS_TV */ + +#endif /* SDL_VIDEO_DRIVER_UIKIT */ + +/* vi: set ts=4 sw=4 expandtab: */ |