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Bug 4582

Summary: Window10 Maximized windows is bad
Product: SDL Reporter: Sylvain <sylvain.becker>
Component: *don't know*Assignee: Ryan C. Gordon <icculus>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: don't know   
Hardware: All   
OS: Windows 10   
Attachments: testcase

Description Sylvain 2019-04-06 21:22:33 UTC 
On window10 desktop, I have a resizeable window.
When I click the upper-right maximized button, it gets maximized.

I don't use the hint letterbox/overscan. (it goes into scale_policy == 0)

There are the vertical black bars added to the left and right, which is correct.
The aspect ratio seems ok.
It must be zoomed a little bit.
But it is zoomed too much so the app isn't drawn on the right, nor on the bottom.


Before it was ok. I mean the previous builds, so it's not an update of win10.
Comment 1 Sylvain 2019-04-07 12:11:07 UTC 
Created attachment 3736 [details]
testcase

here's a testcase, when it gets maximized on window 10 with latest hg.
all corners, except upper left, disappears.

It's working fine on linux and was working previously.
Comment 2 Sylvain 2019-04-07 12:14:18 UTC 
also, when you resize the window manually, and so that it's smaller, you have something which is not letterbox nor overscan.
there are strips left/right and bottom.

on linux, this is ok: 
either left and right, or bottom and top.
Comment 3 Sylvain 2019-04-07 13:43:26 UTC 
It seems to be broken since the new renderer batching, it would be nice to fix it ! Thanks
Comment 4 Sylvain 2019-04-07 16:48:18 UTC 
it seems we update 'vertexShaderConstantsData.projectionAndView'

 https://hg.libsdl.org/SDL/file/0cc2592ed0f4/src/render/direct3d11/SDL_render_d3d11.c#l1938

but we don't call ID3D11DeviceContext_UpdateSubresource

https://hg.libsdl.org/SDL/file/0cc2592ed0f4/src/render/direct3d11/SDL_render_d3d11.c#l2076

If the previous one is called, this resolves the issue
Comment 5 Sylvain 2019-04-08 11:45:17 UTC 
Fixed in https://hg.libsdl.org/SDL/rev/c6356921b02b