-improved WASM compilation scripts

-added external bindbc.sdl import for WASM
-working on demos (WIP, working simple demo with ECS and SDL2)
-small change in ecs.std

demos/external/imports/bindbc/sdl/bind/sdlsystem.d

@@ -0,0 +1,152 @@
+
+//          Copyright Michael D. Parker 2018.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+module bindbc.sdl.bind.sdlsystem;
+
+import bindbc.sdl.config;
+import bindbc.sdl.bind.sdlrender : SDL_Renderer;
+import bindbc.sdl.bind.sdlstdinc : SDL_bool;
+
+version(Android) {
+    enum int SDL_ANDROID_EXTERNAL_STORAGE_READ  = 0x01;
+    enum int SDL_ANDROID_EXTERNAL_STORAGE_WRITE = 0x02;
+}
+
+static if(sdlSupport >= SDLSupport.sdl201) {
+    version(Windows) struct IDirect3DDevice9;
+}
+
+static if(sdlSupport >= SDLSupport.sdl204) {
+    version(Windows) {
+        extern(C) nothrow alias SDL_WindowsMessageHook = void function(void*,void*,uint,ulong,long);
+    }
+}
+
+version(BindSDL_Static) {
+    extern(C) @nogc nothrow {
+        version(Android) {
+            void* SDL_AndroidGetJNIEnv();
+            void* SDL_AndroidGetActivity();
+            const(char)* SDL_AndroidGetInternalStoragePath();
+            int SDL_AndroidGetInternalStorageState();
+            const(char)* SDL_AndroidGetExternalStoragePath();
+
+            static if(sdlSupport >= SDLSupport.sdl208) {
+                SDL_bool SDL_IsAndroidTV();
+            }
+            static if(sdlSupport >= SDLSupport.sdl209) {
+                SDL_bool SDL_IsChromebook();
+                SDL_bool SDL_IsDeXMode();
+                void SDL_AndroidBackButton();
+            }
+        }
+        else version(Windows) {
+            static if(sdlSupport >= SDLSupport.sdl201) {
+                int SDL_Direct3D9GetAdapterIndex(int);
+                IDirect3DDevice9* SDL_RenderGetD3D9Device(SDL_Renderer*);
+            }
+            static if(sdlSupport >= SDLSupport.sdl202) {
+                SDL_bool SDL_DXGIGetOutputInfo(int,int*,int*);
+            }
+            static if(sdlSupport >= SDLSupport.sdl204) {
+                void SDL_SetWindowsMessageHook(SDL_WindowsMessageHook,void*);
+            }
+        }
+        else version(linux) {
+            static if(sdlSupport >= SDLSupport.sdl209) {
+                int SDL_LinuxSetThreadPriority(long,int);
+            }
+        }
+    }
+}
+else {
+    version(Android) {
+        extern(C) @nogc nothrow {
+            alias pSDL_AndroidGetJNIEnv = void* function();
+            alias pSDL_AndroidGetActivity = void* function();
+            alias pSDL_AndroidGetInternalStoragePath = const(char)* function();
+            alias pSDL_AndroidGetInternalStorageState = int function();
+            alias pSDL_AndroidGetExternalStoragePath = const(char)* function();
+        }
+
+        __gshared {
+            pSDL_AndroidGetJNIEnv SDL_AndroidGetJNIEnv;
+            pSDL_AndroidGetActivity SDL_AndroidGetActivity;
+
+            pSDL_AndroidGetInternalStoragePath SDL_AndroidGetInternalStoragePath;
+            pSDL_AndroidGetInternalStorageState SDL_AndroidGetInternalStorageState;
+            pSDL_AndroidGetExternalStoragePath SDL_AndroidGetExternalStoragePath;
+        }
+
+        static if(sdlSupport >= SDLSupport.sdl208) {
+            extern(C) @nogc nothrow {
+                alias pSDL_IsAndroidTV = SDL_bool function();
+            }
+
+            __gshared {
+                pSDL_IsAndroidTV SDL_IsAndroidTV;
+            }
+        }
+
+        static if(sdlSupport >= SDLSupport.sdl209) {
+            extern(C) @nogc nothrow {
+                alias pSDL_IsChromebook = SDL_bool function();
+                alias pSDL_IsDeXMode = SDL_bool function();
+                alias pSDL_AndroidBackButton = void function();
+            }
+
+            __gshared {
+                pSDL_IsChromebook SDL_IsChromebook;
+                pSDL_IsDeXMode SDL_IsDeXMode;
+                pSDL_AndroidBackButton SDL_AndroidBackButton;
+            }
+        }
+    }
+    else version(Windows) {
+        static if(sdlSupport >= SDLSupport.sdl201) {
+            extern(C) @nogc nothrow {
+                alias pSDL_Direct3D9GetAdapterIndex = int function(int);
+                alias pSDL_RenderGetD3D9Device = IDirect3DDevice9* function(SDL_Renderer*);
+            }
+
+            __gshared {
+                pSDL_Direct3D9GetAdapterIndex SDL_Direct3D9GetAdapterIndex ;
+                pSDL_RenderGetD3D9Device SDL_RenderGetD3D9Device;
+            }
+        }
+
+        static if(sdlSupport >= SDLSupport.sdl202) {
+            extern(C) @nogc nothrow {
+                alias pSDL_DXGIGetOutputInfo = SDL_bool function(int,int*,int*);
+            }
+
+            __gshared {
+                pSDL_DXGIGetOutputInfo SDL_DXGIGetOutputInfo;
+            }
+        }
+
+        static if(sdlSupport >= SDLSupport.sdl204) {
+            extern(C) @nogc nothrow {
+                alias pSDL_SetWindowsMessageHook = void function(SDL_WindowsMessageHook,void*);
+            }
+
+            __gshared {
+                pSDL_SetWindowsMessageHook SDL_SetWindowsMessageHook;
+            }
+        }
+    }
+    else version(linux) {
+        static if(sdlSupport >= SDLSupport.sdl209) {
+            extern(C) @nogc nothrow {
+                alias pSDL_LinuxSetThreadPriority = int function(long,int);
+            }
+
+            __gshared {
+                pSDL_LinuxSetThreadPriority SDL_LinuxSetThreadPriority;
+            }
+        }
+    }
+}