DerelictGL3_CustomFreeFuncs compile-time errors

[gecko0307]

I'm trying to load specific GL version (2.1 in my case):

public import derelict.opengl;
mixin glFreeFuncs!(GLVersion.gl21);

As I understand, DerelictGL3_CustomFreeFuncs version switch is required to do that. If I compile my project with this option, the following comes up at DerelictGL3 compilation stage:

..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(88, 13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(88, 33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(90, 13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(90, 33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(92, 13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(92, 33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(95, 17): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
..\..\..\..\..\AppData\Roaming\dub\packages\derelict-gl3-2.0.0-beta.4\derelict-gl3\source\derelict\opengl\glloader.d(95, 37): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible

[mdparker]

I've tried to reproduce this, but I'm unable to. On the test-case I have, it compiles and DerelictGL3.loadedVersion returns GLVersion.gl21 even though I've created a 3.3 context via SDL.

Which compiler and version are you using? Does it work if you don't specify a GL version (i.e. no glFreeFuncs and no DerelictGL3_CustomFreeFuncs)?

[gecko0307]

DMD 2.076.0. Without DerelictGL3_CustomFreeFuncs it works.

[mdparker]

OK. I'm going to need a minimal example that demonstrates the error. I've tried a couple of different ways to reproduce it and can't.

[kohlten]

Hi mdparker,
I had this issue this evening, so I went through your code to see what the issue was.
In your util module, the loader.d class SharedLibLoader function bindFunc was not visible to be used.
I was able to fix this by simply making it public.

public final void bindFunc(void** ptr, string funcName, bool doThrow = true) {
void* func = loadSymbol(funcName, doThrow);
*ptr = func;
}

Thanks!

[mdparker]

@kohlten That's very odd, then. Class members are public by default. Moreover, I have never been able to reproduce this. I always use DerelictGL3_CustomFreeFuncs when I do anything with OpenGL and it works every time. That's why I asked for a minimal example that consistently demonstrates the error.

[kohlten]

@mdparker
I'm new to D, so I don't fully understand everything yet coming from a Python/C background.
So in my experimentation I just had a basic example directly from glfw's website. So that almost makes me think its platform, not the code specifically. I will still include my code below. Thanks!

import std.stdio;
import derelict.glfw3.glfw3;
import derelict.opengl;

int main() {
DerelictGLFW3.load();
DerelictGL3.load();

if (!glfwInit())
    return -1;

auto window = glfwCreateWindow(800, 800, "TEST", null, null);

if (!window) {
    writeln("Failed to create a window!");
    glfwTerminate();
    return -1;
}

glfwSwapInterval(1);
glfwMakeContextCurrent(window);
DerelictGL3.reload();

while (!glfwWindowShouldClose(window)) {
    glClear(GL_COLOR_BUFFER_BIT);
    glfwSwapBuffers(window);
    glfwPollEvents();
}

glfwDestroyWindow(window);

glfwTerminate();
writeln("Edit source/app.d to start your project.");
return 0;

}
Which gives the error:
Performing "debug" build using dmd for x86_64.
derelict-util 2.1.0: building configuration "library"...
derelict-gl3 2.0.0-beta.5: building configuration "library"...
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(86,13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(86,33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(88,13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(88,33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(90,13): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(90,33): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(93,17): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.glloader
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/glloader.d(93,37): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(166,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(166,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(167,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(167,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(168,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(168,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(169,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(169,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(170,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(170,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(171,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(171,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(172,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(172,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(173,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(173,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(174,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(174,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(175,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(175,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(176,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(176,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(177,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(177,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(178,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(178,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(179,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(179,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(180,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(180,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(181,5): Deprecation: derelict.util.loader.SharedLibLoader.bindFunc is not visible from module derelict.opengl.impl
../../../.dub/packages/derelict-gl3-2.0.0-beta.5/derelict-gl3/source/derelict/opengl/impl.d-mixin-164(181,13): Error: class derelict.opengl.gl.DerelictGL3Loader member bindFunc is not accessible

[mdparker]

The original report was on Windows. Are you on Windows, too, or something else?

Also, I don't see you mixing in glFreeFuncs anywhere. Are you using the DerelictGL3_CustomFreeFuncs or not?

Here's your example modified to use glFreeFuncs and the free funcs version. It compiles fine on Windows. If I remove the mixin and the version, it still compiles and runs for me.

Please compile with dub --single filename.d, with and without the mixin + version, and tell me if you get the same error.

/+ dub.sdl:
name "bug"
dependency "derelict-gl3" version="~>2.0.0-beta"
dependency "derelict-glfw3" version="~>4.0.0-beta"
versions "DerelictGL3_CustomFreeFuncs"
+/

import std.stdio;
import derelict.glfw3.glfw3;
import derelict.opengl;
mixin glFreeFuncs!(GLVersion.gl33);

int main() {
    DerelictGLFW3.load();
    DerelictGL3.load();

    if (!glfwInit())
        return -1;

    auto window = glfwCreateWindow(800, 800, "TEST", null, null);

    if (!window) {
        writeln("Failed to create a window!");
        glfwTerminate();
        return -1;
    }

    glfwSwapInterval(1);
    glfwMakeContextCurrent(window);

    DerelictGL3.reload();

    while (!glfwWindowShouldClose(window)) {
        glClear(GL_COLOR_BUFFER_BIT);
        glfwSwapBuffers(window);
        glfwPollEvents();
    }

    glfwDestroyWindow(window);

    glfwTerminate();
    writeln("Edit source/app.d to start your project.");
    return 0;
}

I'd love to get to the bottom of this.

[kohlten]

So this is an error in my understanding and not your code. Dub was getting an outdated version of gl3 which was throwing the error with the new code in util. Both ways will compile fine as long as you have the most updated version of everything either way.

Although, might I ask you to include a simple example so that future people know how to use it correctly?
Thanks!

[mdparker]

@kohlten Is the documentation page not enough?

http://derelictorg.github.io/packages/gl3/