[PATCH 5/5] ddraw: Update the primary surface format when changing the display mode.

[Henri Verbeet]

On 1 February 2017 at 19:56, Stefan Dösinger <stefandoesinger at gmail.com> wrote:
> Am 2017-02-01 um 11:02 schrieb Henri Verbeet:
>>      hr = set_display_mode(ddraw, 640, 480);
>>      ok(SUCCEEDED(hr), "Failed to set display mode, hr %#x.\n", hr);
>>
>> +    memset(&surface_desc, 0, sizeof(surface_desc));
>> +    surface_desc.dwSize = sizeof(surface_desc);
>> +    hr = IDirectDrawSurface_GetSurfaceDesc(primary, &surface_desc);
>> +    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
>> +    ok(surface_desc.dwWidth == 640, "Got unexpected surface width %u.\n", surface_desc.dwWidth);
>> +    ok(surface_desc.dwHeight == 480, "Got unexpected surface height %u.\n", surface_desc.dwHeight);
>> +    ok(U1(surface_desc.ddpfPixelFormat).dwRGBBitCount == 32
>> +            || U1(surface_desc.ddpfPixelFormat).dwRGBBitCount == 24,
>> +            "Got unexpected bit count %u.\n", U1(surface_desc.ddpfPixelFormat).dwRGBBitCount);
> Since we know ddraw does magic on WM_DISPLAYCHANGE messages: Does this
> also happen when you change the mode behind ddraw's back with
> ChangeDisplaySettings?
>
Quite possibly, but I didn't explicitly test that.