Add native Wayland and Mir functions

Fixes #419.

include/GLFW/glfw3native.h

@@ -52,6 +52,8 @@ extern "C" {
  *  * `GLFW_EXPOSE_NATIVE_WIN32`
  *  * `GLFW_EXPOSE_NATIVE_COCOA`
  *  * `GLFW_EXPOSE_NATIVE_X11`
+ *  * `GLFW_EXPOSE_NATIVE_WAYLAND`
+ *  * `GLFW_EXPOSE_NATIVE_MIR`
  *
  *  The available context API macros are:
  *  * `GLFW_EXPOSE_NATIVE_WGL`
@@ -86,6 +88,10 @@ extern "C" {
 #elif defined(GLFW_EXPOSE_NATIVE_X11)
  #include <X11/Xlib.h>
  #include <X11/extensions/Xrandr.h>
+#elif defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+ #include <wayland-client.h>
+#elif defined(GLFW_EXPOSE_NATIVE_MIR)
+ #include <mir_toolkit/mir_client_library.h>
 #else
  #error "No window API selected"
 #endif
@@ -301,6 +307,100 @@ GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
 GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
 #endif
 
+#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+/*! @brief Returns the `struct wl_display*` used by GLFW.
+ *
+ *  @return The `struct wl_display*` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
+
+/*! @brief Returns the `struct wl_output*` of the specified monitor.
+ *
+ *  @return The `struct wl_output*` of the specified monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the main `struct wl_surface*` of the specified window.
+ *
+ *  @return The main `struct wl_surface*` of the specified window, or `NULL` if
+ *  an [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_MIR)
+/*! @brief Returns the `MirConnection*` used by GLFW.
+ *
+ *  @return The `MirConnection*` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI MirConnection* glfwGetMirDisplay(void);
+
+/*! @brief Returns the Mir output ID of the specified monitor.
+ *
+ *  @return The Mir output ID of the specified monitor, or zero if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI int glfwGetMirMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `MirSurface*` of the specified window.
+ *
+ *  @return The `MirSurface*` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @par Thread Safety
+ *  This function may be called from any thread.  Access is not synchronized.
+ *
+ *  @par History
+ *  Added in GLFW 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI MirSurface* glfwGetMirWindow(GLFWwindow* window);
+#endif
+
 #if defined(GLFW_EXPOSE_NATIVE_EGL)
 /*! @brief Returns the `EGLDisplay` used by GLFW.
  *

src/mir_monitor.c

@@ -168,3 +168,15 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
                     "Mir: Unsupported function %s", __PRETTY_FUNCTION__);
 }
 
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetMirMonitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return monitor->mir.output_id;
+}
+

src/mir_window.c

@@ -799,3 +799,21 @@ const char* _glfwPlatformGetClipboardString(_GLFWwindow* window)
     return NULL;
 }
 
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI MirConnection* glfwGetMirDisplay(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfw.mir.connection;
+}
+
+GLFWAPI MirSurface* glfwGetMirWindow(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return window->mir.surface;
+}
+

src/wl_monitor.c

@@ -248,3 +248,15 @@ void _glfwPlatformSetGammaRamp(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
     fprintf(stderr, "_glfwPlatformSetGammaRamp not implemented yet\n");
 }
 
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return monitor->wl.output;
+}
+

src/wl_window.c

@@ -529,3 +529,21 @@ const char* _glfwPlatformGetClipboardString(_GLFWwindow* window)
     return NULL;
 }
 
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI struct wl_display* glfwGetWaylandDisplay(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfw.wl.display;
+}
+
+GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return window->wl.surface;
+}
+