On 18 May 2016 at 09:27, Erik Faye-Lund <kusmab...@gmail.com> wrote: > On Wed, May 18, 2016 at 10:12 AM, Daniel Stone <dan...@fooishbar.org> wrote: >> Hi, >> >> On 18 May 2016 at 00:00, Ian Romanick <i...@freedesktop.org> wrote: >>> On 05/17/2016 09:59 AM, Ben Widawsky wrote: >>>> I think you misstated this. It's not invalid to have any other value. It's >>>> invalid to not have one of the 3 values, which I suppose is technically >>>> possible >>>> if you say support ES2, but not ES or GL (for example) >>>> >>>> "Returns a string describing which client rendering APIs are supported. >>>> The >>>> string contains a space-separate list of API names. The list must >>>> include at >>>> least one of OpenGL, OpenGL_ES, or OpenVG. These strings correspond >>>> respectively to values EGL_OPENGL_API, EGL_OPENGL_ES_API, and >>>> EGL_OPENVG_API >>>> of the eglBindAPI, api argument." >>>> >>>> I am concerned by this change since I genuinely have no clue how EGL >>>> clients >>>> might currently be depending on this, and as such could I request that you >>>> not >>>> change the existing behavior (spit out when ES2 or ES3). At the bottom I >>>> put an >>>> untested version of what i would have done. >>> >>> I think this might be right. Outside of Mesa sources, I can't find any >>> mention of OpenGL_ES2 or OpenGL_ES3 strings anywhere on the Internet. >>> At least VLC >>> (http://www.videolan.org/developers/vlc/modules/video_output/egl.c) uses >>> OpenGL_ES for both OpenGL ES 1.x and 2.x. >> >> Yes, and they'd be foolish not to: the proprietary Mali, PVR and >> Vivante drivers don't expose these strings, just OpenGL_ES, OpenGL and >> OpenVG. No idea what the proprietary Tegra drivers do, but I'd be >> surprised if they were different. > > The proprietary NV driver on Tegra 2 reports "OpenGL_ES2 OpenGL_ES > OpenGL OpenVG" for me :/
Thanks Erik, I wish you had better news. So perhaps we could keep the ES2/ES3 strings for now, until we check with newer tegra 3/4 drivers (perhaps they removed it) or a few other programs than VLC ? One could even add a lovely comment/reference to this discussion alongside the code. Just my 2c Emil _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
