How to make libGLESv2 friends with GLFW or SDL2?

Question

Windows

I use GLFW and SDL2 (I tried two options, I thought there was a jamb in them) for rendering windows and I try to drag libGLESv2 to work with gl * functions (shaders and other tinsel). I cut everything in the form of libraries.

The Angle code itself is as follows:

glClearColor(0.0, 1.0, 0.0, 1.0); // green 1
glClear(0x00000100 | 0x00004000); // GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT

And here lies the problem itself:
1) If you use opengl32.dll, which is in system32, then everything is ok. The code is working, I get a green screen:


2) If I use libGLESv2 (which is Google's angle), it doesn't work, I get a black screen on the primitive code:


What I tried to do:
1) I tried to throw libGLESv2 into system32 (suddenly there are not enough rights?).
2) Tried to completely (successfully) recompile libGLESv2 from source.
3) I tried to tear it out of other programs (including from Google Chrome) - the same thing. Assembly is not the problem.
4) With the debugger of the studio, which allows you to get close to the finished process - I did not make friends. Hooking (breakpoint) on glClearColor function calls - doesn't help.

PS I would like any OpenGL wrapper (with cdecl calls) that allows you to assemble shaders. Alas, native opengl does not allow this, and GLEW stupidly does not work through FFI. So I settled on libGLESv2 because no alternatives found.

Answer 1

The issue is resolved, the result:

In short, it was necessary to use native opengl, and the functions that are not enough to be loaded via wglGetProcAddress, so the function (for example) of compiling shaders looks like this:

$gl = ....;

$glCreateShader = $gl->cast('GLuint (*)(GLenum shaderType​)', $gl->wglGetProcAddress('glCreateShader'));

$glCreateShader(....);