/*

Simple DirectMedia Layer

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"

@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 int

UIKit_AddSingleDisplayMode(SDL_VideoDisplay * display, int w, int h,

UIScreenMode * uiscreenmode)

{

SDL_DisplayMode mode;

SDL_zero(mode);

mode.format = SDL_PIXELFORMAT_ABGR8888;

mode.refresh_rate = 0;

if (UIKit_AllocateDisplayModeData(&mode, uiscreenmode) < 0) {

return -1;

}

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,

UIScreenMode * uiscreenmode, SDL_bool addRotation)

{

if (UIKit_AddSingleDisplayMode(display, w, h, uiscreenmode) < 0) {

return -1;

}

if (addRotation) {

/* Add the rotated version */

if (UIKit_AddSingleDisplayMode(display, h, w, uiscreenmode) < 0) {

return -1;

}

}

return 0;

}

static int

UIKit_AddDisplay(UIScreen *uiscreen)

{

CGSize size = uiscreen.bounds.size;

/* 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;

}

SDL_VideoDisplay display;

SDL_DisplayMode mode;

SDL_zero(mode);

mode.format = SDL_PIXELFORMAT_ABGR8888;

mode.w = (int) size.width;

mode.h = (int) size.height;

UIScreenMode *uiscreenmode = uiscreen.currentMode;

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 (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;

}

}

}

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

/* 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, 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;

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;

/* 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;

}

CGRect frame = data.uiscreen.bounds;

#if !TARGET_OS_TV

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;

}

}

}

}

#endif /* SDL_VIDEO_DRIVER_UIKIT */

/* vi: set ts=4 sw=4 expandtab: */