API Question trouble getting panel background to work when not creating it from file

[jedidia]

I'm at a point with my GUI framework that there's really no need for me to have a panel background texture in a file anymore (it's literally just a background color, which I'd rather declare dynamically and save some disk space while doing it).

However, I'm hitting a snag. While so far I had no problems with surfaces created on the fly with oapiCreateSurfaceEx, I do seem to run into a problem when I want that particular surface to be my panel background.

Earlier, the texture was simply loaded from file:

engPanelBG = oapiLoadTexture("mydir\\panel.dds");

Which worked fine, and still does.

However, when I replace that line with this:

engPanelBG = oapiCreateSurfaceEx(1680, 1050, OAPISURFACE_TEXTURE);
 oapiColourFill(engPanelBG, oapiGetColour(8, 8, 24), 0, 0, 1680, 1050);

Not only does my panel turn out pure white all of a sudden, it also doesn't render anything copied to it anymore.

I must conclude that oapiLoadTexture creates the surface in some other maner... I have tried different combinations of surface attribute flags, but nothing seems to do the trick. Has anybody ever tried this sucessfuly?

 

[jarmonik]

Try using flags:
OAPISURFACE_TEXTURE | OAPISURFACE_RENDERTARGET

does it help ?

 

[jedidia]

This is starting to smell like a bug, unless my bitwise operations are way rustier than I thought.

If I use oapiCreateTextureSurface, it works. The documentation for oapiTextureSurface lists a specific combination of attributes the surface is created with:

The surface is created with the OAPISURFACE_TEXTURE, OAPISURFACE_RENDERTARGET, OAPISURFACE_GDI and OAPISURFACE_SKETCHPAD attributes

However, if I create a surface with oapiCreateSurfaceEx like this:

engPanelBG = oapiCreateSurfaceEx(1680, 1050, OAPISURFACE_TEXTURE | OAPISURFACE_RENDERTARGET | OAPISURFACE_GDI | OAPISURFACE_SKETCHPAD);

It still won't work. The only two explanations coming to mind is that my understanding of bitwise OR is flawed and I need to bunch the flags together differently (although I am using bitwise OR in other places where it does perform as I expect it to), or there's a bug that makes a surface created with oapiCreateSurfaceEx somehow unsuited to be used as a texture for a panel.

I am working in Orbiter Beta I might add. I haven't checked if the problem persists in 2010 P1.

 

[jarmonik]

Is that with inline engine or with D3D9 Client ? Are they both giving the same results ?
EDIT: Flags are combined correctly with |
EDIT2: oapiCreateSurfaceEx does not exists in 2010-P1

 

[jedidia]

EDIT2: oapiCreateSurfaceEx does not exists in 2010-P1

oh... didn't even realise that :lol:

Is that with inline engine or with D3D9 Client ? Are they both giving the same results ?

Inline, haven't tried D3D9 yet.

 

[jarmonik]

Inline, haven't tried D3D9 yet.

Doesn't matter much, might help to identify if the problem is on Orbiter's side. If you want your creation to work with 2010-P1 then oapiCreateTextureSurface is likely the way to go.