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[host] dxgi: reverse the rotation angle.

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This is undocumented however testing yields that DXGI DD reports the
inverse rotation. Research shows that this is because of a difference in
coordiate spaces.

Ref: https://docs.microsoft.com/en-us/windows/uwp/gaming/supporting-screen-rotation-directx-and-cpp
This commit is contained in:
Geoffrey McRae 2021-01-18 15:15:36 +11:00
parent 7355c196ba
commit cac454d9cf
1 changed files with 2 additions and 3 deletions
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5
host/platform/Windows/capture/DXGI/src/dxgi.c
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@ -394,7 +394,7 @@ static bool dxgi_init(void)
switch(outputDesc.Rotation)
{
case DXGI_MODE_ROTATION_ROTATE90:
this->rotation = CAPTURE_ROT_90;
this->rotation = CAPTURE_ROT_270;
break;
case DXGI_MODE_ROTATION_ROTATE180:
@ -402,8 +402,7 @@ static bool dxgi_init(void)
break;
case DXGI_MODE_ROTATION_ROTATE270:
this->rotation = CAPTURE_ROT_270;
this->rotation = CAPTURE_ROT_90;
break;
default: