Create ES context?

[saschawillems]

Create ES context?

[Artem3213212]

1. ES isn't full cross platform it un supported on windows(but on windows you can use emulator from mali)
2. GL and GLES -similar but not one API
3. dglOpenGL is only for OpenGL if you need GLES You can use it https://github.com/TeamFND/OpenGLES30 or it http://git.ccs-baumann.de/Bergmann89/dglopengles/tree/428dd4e767b94384c9ede1c73e03d191bfe96571
   more about opengl: see here https://bergmann89.de/en/openglcore/

[duzenko]

1. OpenGL ES 3.2 should be supported on Windows https://en.wikipedia.org/wiki/OpenGL_ES#OpenGL_ES_3.2_2
2. Isn't GLES merely a subset of GL?

[Artem3213212]

1. IF ES 3.2 Supported by windows why google made Angle project?
2. GLES has other but very similar shader language.
   So WebGL n.m is GLES n+1.m (1.0->2.0 e.g) but with different initialization(webgl hasn't egl). GLES has't a big part GL's backward compatibility funtions(glbegin, glend and e.g.)

[duzenko]

1. Sorry, are you saying that the existence of Angle is an actual proof that ES is not supported on Windows?
2. This has nothing to do with WebGL or the removed fixed pipeline functions

[Artem3213212]

Cromium use GLES to rendering WebGL but on windows GLES unsupported, so Google use Angle for GLES emulation.
And why very clever google don't use OGL instead on windows? Because GLES and OGL has different shder languages. Read more about GLSL and GLSL ES.

[duzenko]

https://www.saschawillems.de/blog/2015/04/19/using-opengl-es-on-windows-desktops-via-egl/

[Artem3213212]

PowerVR SDK - emulator not stable
AMD OpenGL ES SDK - AMD I don't know what with nvidia
ANGLE - emulator with different initialisation function (between official kronos)
So you can use mali: https://developer.arm.com/tools-and-software/graphics-and-gaming/opengl-es-emulator/downloads

[Artem3213212]

But all of this is only emulation and hasn't stability as need for production

[duzenko]

https://github.com/glfw/glfw/blob/master/src/egl_context.c
https://github.com/duzenko/GLBenchmark/blob/10210708d17a24438e871a1b075ca243836ed85e/GLBench.Windows/src/main.cpp

Not sure what to say at this point. It seems Delphi is now dead and I must switch to C++.

[Artem3213212]

Again it is not Delphi problem, in C++ it works similar(by emulator).