bindbc / bindbc-glfw Goto Github PK

module main;
import std.stdio;
import bindbc.glfw;

@nogc @safe nothrow
void foo()
{
  writeln(loadedGLFWVersion());
  writeln(isGLFWLoaded());
}

@nogc nothrow
void bar()
{
  loadGLFW();
  foo();
  unloadGLFW();
}

void main()
{
  bar();
}

$ dub run
Performing "debug" build using /usr/bin/dmd for x86_64.
bindbc-loader 0.2.1: building configuration "noBC"...
bindbc-glfw 0.6.0: building configuration "dynamic"...
test ~master: building configuration "application"...
src/app.d(8,28): Error: `@safe` function `main.foo` cannot call `@system` function `bindbc.glfw.binddynamic.loadedGLFWVersion`
.dub/packages/bindbc-glfw-0.6.0/bindbc-glfw/source/bindbc/glfw/binddynamic.d(271,14):        `bindbc.glfw.binddynamic.loadedGLFWVersion` is declared here
src/app.d(8,28): Error: `@nogc` function `main.foo` cannot call non-@nogc function `bindbc.glfw.binddynamic.loadedGLFWVersion`
src/app.d(8,10): Error: `@nogc` function `main.foo` cannot call non-@nogc function `std.stdio.writeln!(GLFWSupport).writeln`
src/app.d(9,23): Error: `@safe` function `main.foo` cannot call `@system` function `bindbc.glfw.binddynamic.isGLFWLoaded`
.dub/packages/bindbc-glfw-0.6.0/bindbc-glfw/source/bindbc/glfw/binddynamic.d(272,7):        `bindbc.glfw.binddynamic.isGLFWLoaded` is declared here
src/app.d(9,23): Error: `@nogc` function `main.foo` cannot call non-@nogc function `bindbc.glfw.binddynamic.isGLFWLoaded`
src/app.d(9,10): Error: `@nogc` function `main.foo` cannot call non-@nogc function `std.stdio.writeln!bool.writeln`
src/app.d(8,28): Error: function `bindbc.glfw.binddynamic.loadedGLFWVersion` is not `nothrow`
src/app.d(9,23): Error: function `bindbc.glfw.binddynamic.isGLFWLoaded` is not `nothrow`
src/app.d(6,6): Error: `nothrow` function `main.foo` may throw
src/app.d(15,11): Error: `@nogc` function `main.bar` cannot call non-@nogc function `bindbc.glfw.binddynamic.loadGLFW`
src/app.d(17,13): Error: `@nogc` function `main.bar` cannot call non-@nogc function `bindbc.glfw.binddynamic.unloadGLFW`
src/app.d(15,11): Error: function `bindbc.glfw.binddynamic.loadGLFW` is not `nothrow`
src/app.d(17,13): Error: function `bindbc.glfw.binddynamic.unloadGLFW` is not `nothrow`
src/app.d(13,6): Error: `nothrow` function `main.bar` may throw
/usr/bin/dmd failed with exit code 1.

{
	"authors": [
		"HuskyNator"
	],
	"copyright": "Copyright © 2021, HuskyNator",
	"dependencies": {
		"bindbc-glfw": "~>0.10.1",
		"bindbc-opengl": "~>0.13.0"
	},
	"description": "Learning OpenGL (in Dutch)",
	"libs": ["glfw3"],
	"license": "proprietary",
	"name": "hoekjed",
	"versions": [ "BindGLFW_Static", "GLFW_33", "GL_46"]
}

GLFWSupport ret = loadGLFW();

if (ret == GLFWSupport.noLibrary) 
    writeln("No FreeImage shared library was detected");
if (ret == GLFWSupport.badLibrary) 
    writeln("One or more symbols failed to load.");

if (isGLFWLoaded())
{
    GLFWSupport glfwVer = loadedGLFWVersion();
    if (glfwVer == GLFWSupport.glfw30)
        writeln("GLFW - Graphics Library FrameWork - Version 3.0 successfully loaded");
    else if (glfwVer == GLFWSupport.glfw31)
        writeln("GLFW - Graphics Library FrameWork - Version 3.1 successfully loaded");
    else if (glfwVer == GLFWSupport.glfw32)
        writeln("GLFW - Graphics Library FrameWork - Version 3.2 successfully loaded");
    else
        writeln("An unexpected version of GLFW - Graphics Library FrameWork - was loaded");
}
else
    writeln("No version of the GLFW library was loaded");

// from upcomming d_imgui glfw vulkan backend code
module foo;
GLFWmousebuttonfun g_PrevUserCallbackMousebutton;
// Assign some function pointer to g_PrevUserCallbackMousebutton
extern( C ) void bar( GLFWwindow* window, int button, int action, int mods ) nothrow @nogc
{
    if( g_PrevUserCallbackMousebutton != null )
        g_PrevUserCallbackMousebutton( window, button, action, mods );
    // ...
}

Error: `@nogc` function `foo.bar` cannot call non-@nogc function pointer `g_PrevUserCallbackMousebutton`

version(BindGLFW_NoGC_func_ptr_types) {
  extern(C) nothrow @nogc {
      alias GLFWerrorfun = void function(int,const(char)*);
      // ...
    }
} else {
  extern(C) nothrow {
      alias GLFWerrorfun = void function(int,const(char)*);
      // ...
    }
}

module myapp;
import erupted;  // Necessary to have VK symbols object, used in bindGLFW_Vulkan
import bindbc.glfw;

mixin(bindGLFW_Vulkan); //Compilation fails: lib, errorCount and invalidHandle are undefined

public auto getGLFWlib()
{
    return lib;
}
    
public auto getGLFWerrorCount()
{
    return errorCount();
}

bool loadGLFW_Vulkan()
{
    import bindbc.loader;
    assert(isGLFWLoaded(), "loadGLFW must be successfully called before loadGLFW_Vulkan");

    auto errCount = getGLFWerrorCount();
    getGLFWlib.bindSymbol(cast(void**)&glfwGetRequiredInstanceExtensions, "glfwGetRequiredInstanceExtensions");
    getGLFWlib.bindSymbol(cast(void**)&glfwGetInstanceProcAddress, "glfwGetInstanceProcAddress");
    getGLFWlib.bindSymbol(cast(void**)&glfwGetPhysicalDevicePresentationSupport, "glfwGetPhysicalDevicePresentationSupport");
    getGLFWlib.bindSymbol(cast(void**)&glfwCreateWindowSurface, "glfwCreateWindowSurface");
    return getGLFWerrorCount() == errCount;
}