[Ohrrpgce] Android SdlVideoResize=y

[James Paige]

On Thu, Jun 06, 2013 at 07:52:15AM -0700, James Paige wrote:
> On Thu, Jun 06, 2013 at 01:35:03PM +1200, Ralph Versteegen wrote:
> > On 6 June 2013 04:53, James Paige <Bob at hamsterrepublic.com> wrote:
> > > I was experimenting with the Android build a little. It runs really nice
> > > on the OUYA. Don't Eat Soap goes the full 18.2 fps, and bell of CHaos
> > > runs at a pretty solid 18.1 fps (on the first screen with no enemies, I
> > > couldn't jump)
> > >
> > > I change the button mappings. I figured there was no point to mapping
> > > any of the buttons to arrow keys because there is already an arrow key
> > > thingy on the left, so just for testing Bell of Chaos I mapped:
> > >
> > > AppTouchscreenKeyboardKeysAmount=4
> > > AppTouchscreenKeyboardKeysAmountAutoFire=0
> > > RedefinedKeysScreenKb="LCTRL LALT RETURN ESCAPE"
> > > RedefinedKeysScreenKbNames="CTRL ALT Enter ESC"
> > >
> > > and tested it on a Nexus 7 at work. It played very nicely. Small
> > > slowdown when a lot of stuff is happening, but still totally playable.
> > 
> > Cool!
> > 
> > > One thing I have noticed on all three of the devices I have tested is
> > > that the screen only takes up the top left corner, and that there are
> > > black spaces on the right and bottom, like this:
> > > http://i.imgur.com/O7F3NxB.jpg
> > >
> > > I tried setting:
> > >
> > > SdlVideoResize=y
> > >
> > > But it seemed to make no difference. (and I did remember to increment
> > > AppVersionCode)
> > >
> > > ---
> > > James
> > 
> > If you want to try stretching the screen, modify gfx_sdl.bas.
> > Currently it asks SDL_SetVideoMode for a buffer the size of the
> > screen, and then uses the highest zoom amount possible. I did that
> > because on my emulator when I only asked for a 320x200 screen it was
> > glitchy with the image cut up into pieces.
> 
> Oh, I understand!
> 
> I/OHRRPGCE(20248): gfx_sdl: screen size is 1280*736
> I/OHRRPGCE(20248): gfx_sdl: selected zoom = 3
> 
> So SDL_SetVideoMode(0, 0, bitdepth, flags) returns the actual 
> resolution, 1280*736 and then allocates a screen of that full size. Then 
> select_zoom_automatically finds the biggest zoom that fits within that 
> size.
> 
> ... *testing*
> 
> I forced the screen size to 320x200 and zoom to 1, and then recompiled 
> with SdlVideoResize=y and it works beautifully on the Nexus 7
> 
> http://i.imgur.com/Rsghv3v.jpg
> 
> Now if we can just figure out a method that works on both old and new 
> devices, or a graceful way to pick between the two screen sizing 
> methods.

Just a thought on this, what if we leave SdlVideoResize=y in the 
AndroidAppSettings.cfg and then make gfx_sdl respect the -f command line 
option on android to do a 320x200 zoom=1 screen? but when -f is not 
specified, it will continue to use the current behavior (although we 
probably still do want to center it rather than top-lefting it)

---
James