This bug report was migrated from our old Bugzilla tracker.

Reported in version: HG 2.1
Reported for operating system, platform: Other, iPhone/iPod touch

Comments on the original bug report:

On 2016-10-22 13:26:06 +0000, dmuratshin wrote:

After updating to iOS 10 "SDL_GL_GetDrawableSize" returns wrong size when you switch display Off and then On
for example on my iPhone 5 in Landscape mode it returns (144, 1632) and (640, 1136)
instead off (1136, 640).

iOS 7/8/9 works fine as expected and always returns (1136, 640)

On 2016-10-22 13:46:56 +0000, dmuratshin wrote:

more info
flags:
int flags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN;
flags |= SDL_WINDOW_BORDERLESS;
flags |= SDL_WINDOW_ALLOW_HIGHDPI;
flags |= SDL_WINDOW_FULLSCREEN;

main loop via:
SDL_iPhoneSetAnimationCallback

On 2016-10-22 14:05:52 +0000, dmuratshin wrote:

ok, after some investigation I've found key
bug reproducible only if you use SDL_iPhoneSetAnimationCallback instead of common main loop

On 2016-10-22 14:34:36 +0000, Alex Szpakowski wrote:

Can you provide a minimal test case that reproduces the issue?

On 2016-10-22 22:11:23 +0000, dmuratshin wrote:

oxygine/SDL@e22853e
minimum changes.
I've found that it happens only in pair with SDL_WINDOW_FULLSCREEN flag

On 2016-10-26 21:23:24 +0000, dmuratshin wrote:

Do you need any assist? Or maybe you expect directly attached files?

On 2017-04-26 15:46:46 +0000, dmuratshin wrote:

how to reproduce video:
https://goo.gl/photos/iCCdsQJa7FWXuZyP7

On 2017-08-11 20:13:36 +0000, Sam Lantinga wrote:

Alex, can you look at this for the 2.0.6 release?

On 2017-08-12 13:02:02 +0000, dmuratshin wrote:

update:
it is not ios 10 only. Could be reproduced with 8/9 too.
happens with SDL_iPhoneSetAnimationCallback.

how to repro (see video above):

0. launch landscape app
1. open/close any native UI in game (keyboard, facebook login etc)
2. rotate display to portrait mode
3. turn display off
4. turn on
5. try to open any native UI
   result -> broken background size

On 2017-08-19 02:25:42 +0000, Alex Szpakowski wrote:

I believe I've fixed it / worked around the problem with https://hg.libsdl.org/SDL/rev/770196e01af1 , can you confirm?

On 2017-08-29 14:28:03 +0000, dmuratshin wrote:

Still not fixed
proof:
https://goo.gl/photos/RffZqHBG3LKCVNXS7

please note

1. SDL_iPhoneSetAnimationCallback should be used
2. FULLSCREEN BORDERLESS mode
3. UIKit_ComputeViewFrame called only on start
4. native UI should be opened before bug occures

On 2017-08-29 14:31:16 +0000, dmuratshin wrote:

5. iphone (not ipad)

On 2017-08-29 15:14:02 +0000, Alex Szpakowski wrote:

Is it still reproducible when using SDL's native virtual keyboard rather than a third party / other native UI? If not, the problem may not be fixable on SDL's end as it's likely a bug in iOS or the third party UI.

On 2017-09-20 15:03:23 +0000, Alex Szpakowski wrote:

iOS 11 may have fixed the underlying issue, as well.