[Solved]Blackberry Qt5 with ANGLE for OpenGL ES2?

sierdzio

I don't think Blackberry supports directX, does it? So why do you try to use Angle for this?

weblife

I didn't know it makes the whole library rely on DirectX. I thought it was a work-around to compile for OpenGL ES2 library but would still allow OpenGL ES2 programming. This is super depressing if its a complete replacement of it.

I am about ready to give up on Windows 7.

sierdzio

Angle is a library that translates OpenGL calls into DirectX calls.

On windows, you probably have both installed (both AMD and nVidia provide OpenGL and DirectX drivers). I have no experience on Blackberry, but I think their OS is UNIX-like, so it probably does support OpenGL natively. Qt5's QUICK2 uses OpenGL.

weblife

I know it uses OpenGL but my problem is compiling on Windows 7 to get a Blackberry library to use in Blackberry development. I think I may have gotten it, I should find out soon as it gets to that step again. Let you know what I did if it works.

weblife

Wow, it worked. Unfortunatly a new OpenGL error but much closer.

What I did was use the headers for OpenGL from qnx includes GLES & GLES2. I stopped using ANGLE also.

The new error:

@:(.text$_ZN19QOpenGLGlyphTexture12freeResourceEP14QOpenGLContext[QOpenGLGlyphTex
ture::freeResource(QOpenGLContext*)]+0x39): undefined reference to _imp__glDele teTextures@8' collect2: ld returned 1 exit status mingw32-make[3]: *** [../../lib/QtGui5.dll] Error 1 mingw32-make[3]: Leaving directory c:/SDKs/Qt/qt5/qtbase/src/gui'
mingw32-make[2]: *** [release] Error 2
mingw32-make[2]: Leaving directory c:/SDKs/Qt/qt5/qtbase/src/gui' mingw32-make[1]: *** [sub-gui-make_first] Error 2 mingw32-make[1]: Leaving directory c:/SDKs/Qt/qt5/qtbase/src'
mingw32-make: *** [sub-src-make_first] Error 2@

sierdzio

Linker error. A build object is missing. I can't help more, though, I've never had such an issue + my OpenGL knowledge can hardly be named "knowledge" ;)

weblife

It beats mine :) trying to figure out the reason may need different headers. Thank you for the clarity on ANGLE! At least I feel I can go another day of trying to get this.

weblife

Solution result. I had to forget ANGLE because I miss understood it's use. Angle as @sierdzio mentions is a replacement for OpenGL ES2 for those who don't have it at all, not if the development files aren't present or compiled. It will make your program use Direct X instead of OpenGL ES.

Could be useful knowledge at a later date...

ZapB

Yeah Blackberry uses OpenGL ES2 natively. No DirectX, hence no need for ANGLE at all. If you encounter any issues with the ES2 support on Blackberry please let us know.

billouparis

I don't know if this can help anyone, but configuring Qt5 with this option "-opengl desktop" was very helpful for me, to rely on my real video card opengl capabilities.

Bill