glGetIntegerv / glGetFloatv

[MomTarsh]

Hello,

There seems to be a problem when I am calling either glGetIntegerv or
glGetFloatv (and probably other glGet* functions, which I do not use).

Here is my code:

m_camera.SetViewMatrix(); //just to make sure nothings left from
the last render

int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);

int errCode = glGetError();

float proj[16];
glGetFloatv(GL_PROJECTION_MATRIX, proj);

float model[16];
glGetFloatv(GL_MODELVIEW_MATRIX, model);

m_currentRay.Create(x, y, 0.0f, 1.0f, model, proj, viewport);

When it runs this code, the glGet* functions don't seem to be doing
anything. I tried initialising the variables to values I would
recognise for example

viewport[0] = 1;
viewport[1] = 2;
viewport[2] = 3;
viewport[3] = 4;
glGetIntegerv(GL_VIEWPORT, viewport);

etc, but still none of the variables change. A few notes:

- I am using Android 2.2 SDK.
- I am using NDK R5
- I am debugging on a HTC Wildfire.

Any help would be appreciated.

Thanks.

[Futumsh]

I think the HTC Wildfire is an opengl es 1.0 device, and those glGet*
parameters were added for opengl es 1.1. If you check for errors
after the calls you should see invalid enums.

[MomTarsh]

Thank you for the quick reply,

Yes, when I call glGetError(), it seems to give me an odd number which
does not correspond to anything. In this case 2459720, this can
change, however. .

I'm guessing there's no way around this and I will just have to test
on a different device?

Thanks.