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SDL2/src/video/uikit/SDL_uikitmodes.m
Sam Lantinga 5750bcb174
Update for SDL3 coding style (#6717) 
I updated .clang-format and ran clang-format 14 over the src and test directories to standardize the code base.

In general I let clang-format have it's way, and added markup to prevent formatting of code that would break or be completely unreadable if formatted.

The script I ran for the src directory is added as build-scripts/clang-format-src.sh

This fixes:
#6592
#6593
#6594
2022-11-30 12:51:59 -08:00

583 lines
18 KiB
Objective-C
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2022 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_uikitmodes.h"
#include "../../events/SDL_events_c.h"
#import <sys/utsname.h>
@implementation SDL_DisplayData
- (instancetype)initWithScreen:(UIScreen *)screen
{
if (self = [super init]) {
self.uiscreen = screen;
/*
* A well up to date list of device info can be found here:
* https://github.com/lmirosevic/GBDeviceInfo/blob/master/GBDeviceInfo/GBDeviceInfo_iOS.m
*/
NSDictionary *devices = @{
@"iPhone1,1" : @163,
@"iPhone1,2" : @163,
@"iPhone2,1" : @163,
@"iPhone3,1" : @326,
@"iPhone3,2" : @326,
@"iPhone3,3" : @326,
@"iPhone4,1" : @326,
@"iPhone5,1" : @326,
@"iPhone5,2" : @326,
@"iPhone5,3" : @326,
@"iPhone5,4" : @326,
@"iPhone6,1" : @326,
@"iPhone6,2" : @326,
@"iPhone7,1" : @401,
@"iPhone7,2" : @326,
@"iPhone8,1" : @326,
@"iPhone8,2" : @401,
@"iPhone8,4" : @326,
@"iPhone9,1" : @326,
@"iPhone9,2" : @401,
@"iPhone9,3" : @326,
@"iPhone9,4" : @401,
@"iPhone10,1" : @326,
@"iPhone10,2" : @401,
@"iPhone10,3" : @458,
@"iPhone10,4" : @326,
@"iPhone10,5" : @401,
@"iPhone10,6" : @458,
@"iPhone11,2" : @458,
@"iPhone11,4" : @458,
@"iPhone11,6" : @458,
@"iPhone11,8" : @326,
@"iPhone12,1" : @326,
@"iPhone12,3" : @458,
@"iPhone12,5" : @458,
@"iPad1,1" : @132,
@"iPad2,1" : @132,
@"iPad2,2" : @132,
@"iPad2,3" : @132,
@"iPad2,4" : @132,
@"iPad2,5" : @163,
@"iPad2,6" : @163,
@"iPad2,7" : @163,
@"iPad3,1" : @264,
@"iPad3,2" : @264,
@"iPad3,3" : @264,
@"iPad3,4" : @264,
@"iPad3,5" : @264,
@"iPad3,6" : @264,
@"iPad4,1" : @264,
@"iPad4,2" : @264,
@"iPad4,3" : @264,
@"iPad4,4" : @326,
@"iPad4,5" : @326,
@"iPad4,6" : @326,
@"iPad4,7" : @326,
@"iPad4,8" : @326,
@"iPad4,9" : @326,
@"iPad5,1" : @326,
@"iPad5,2" : @326,
@"iPad5,3" : @264,
@"iPad5,4" : @264,
@"iPad6,3" : @264,
@"iPad6,4" : @264,
@"iPad6,7" : @264,
@"iPad6,8" : @264,
@"iPad6,11" : @264,
@"iPad6,12" : @264,
@"iPad7,1" : @264,
@"iPad7,2" : @264,
@"iPad7,3" : @264,
@"iPad7,4" : @264,
@"iPad7,5" : @264,
@"iPad7,6" : @264,
@"iPad7,11" : @264,
@"iPad7,12" : @264,
@"iPad8,1" : @264,
@"iPad8,2" : @264,
@"iPad8,3" : @264,
@"iPad8,4" : @264,
@"iPad8,5" : @264,
@"iPad8,6" : @264,
@"iPad8,7" : @264,
@"iPad8,8" : @264,
@"iPad11,1" : @326,
@"iPad11,2" : @326,
@"iPad11,3" : @326,
@"iPad11,4" : @326,
@"iPod1,1" : @163,
@"iPod2,1" : @163,
@"iPod3,1" : @163,
@"iPod4,1" : @326,
@"iPod5,1" : @326,
@"iPod7,1" : @326,
@"iPod9,1" : @326,
};
struct utsname systemInfo;
uname(&systemInfo);
NSString *deviceName =
[NSString stringWithCString:systemInfo.machine
encoding:NSUTF8StringEncoding];
id foundDPI = devices[deviceName];
if (foundDPI) {
self.screenDPI = (float)[foundDPI integerValue];
} else {
/*
* Estimate the DPI based on the screen scale multiplied by the base DPI for the device
* type (e.g. based on iPhone 1 and iPad 1)
*/
float scale = (float)screen.nativeScale;
float defaultDPI;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
defaultDPI = 132.0f;
} else if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
defaultDPI = 163.0f;
} else {
defaultDPI = 160.0f;
}
self.screenDPI = scale * defaultDPI;
}
}
return self;
}
@synthesize uiscreen;
@synthesize screenDPI;
@end
@implementation SDL_DisplayModeData
@synthesize uiscreenmode;
@end
@interface SDL_DisplayWatch : NSObject
@end
@implementation SDL_DisplayWatch
+ (void)start
{
NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center addObserver:self
selector:@selector(screenConnected:)
name:UIScreenDidConnectNotification
object:nil];
[center addObserver:self
selector:@selector(screenDisconnected:)
name:UIScreenDidDisconnectNotification
object:nil];
}
+ (void)stop
{
NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center removeObserver:self
name:UIScreenDidConnectNotification
object:nil];
[center removeObserver:self
name:UIScreenDidDisconnectNotification
object:nil];
}
+ (void)screenConnected:(NSNotification *)notification
{
UIScreen *uiscreen = [notification object];
UIKit_AddDisplay(uiscreen, SDL_TRUE);
}
+ (void)screenDisconnected:(NSNotification *)notification
{
UIScreen *uiscreen = [notification object];
UIKit_DelDisplay(uiscreen);
}
@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;
}
int UIKit_AddDisplay(UIScreen *uiscreen, SDL_bool send_event)
{
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] initWithScreen:uiscreen];
if (!data) {
UIKit_FreeDisplayModeData(&display.desktop_mode);
return SDL_OutOfMemory();
}
display.driverdata = (void *)CFBridgingRetain(data);
SDL_AddVideoDisplay(&display, send_event);
return 0;
}
void UIKit_DelDisplay(UIScreen *uiscreen)
{
int i;
for (i = 0; i < SDL_GetNumVideoDisplays(); ++i) {
SDL_DisplayData *data = (__bridge SDL_DisplayData *)SDL_GetDisplayDriverData(i);
if (data && data.uiscreen == uiscreen) {
CFRelease(SDL_GetDisplayDriverData(i));
SDL_DelVideoDisplay(i);
return;
}
}
}
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, SDL_FALSE) < 0) {
return -1;
}
}
#if !TARGET_OS_TV
SDL_OnApplicationDidChangeStatusBarOrientation();
#endif
[SDL_DisplayWatch start];
}
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
for (UIScreenMode *uimode in availableModes) {
/* The size of a UIScreenMode is in pixels, but we deal exclusively
* in points (except in SDL_GL_GetDrawableSize.)
*
* For devices such as iPhone 6/7/8 Plus, the UIScreenMode reported
* by iOS is not in physical pixels of the display, but rather the
* point size times the scale. For example, on iOS 12.2 on iPhone 8
* Plus the uimode.size is 1242x2208 and the uiscreen.scale is 3
* thus this will give the size in points which is 414x736. The code
* used to use the nativeScale, assuming UIScreenMode returned raw
* physical pixels (as suggested by its documentation, but in
* practice it is returning the retina pixels). */
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_GetDisplayDPI(_THIS, SDL_VideoDisplay *display, float *ddpi, float *hdpi, float *vdpi)
{
@autoreleasepool {
SDL_DisplayData *data = (__bridge SDL_DisplayData *)display->driverdata;
float dpi = data.screenDPI;
if (ddpi) {
*ddpi = dpi * (float)SDL_sqrt(2.0);
}
if (hdpi) {
*hdpi = dpi;
}
if (vdpi) {
*vdpi = dpi;
}
}
return 0;
}
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;
}
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)
{
[SDL_DisplayWatch stop];
/* 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: */
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