Added getNumOfAASamples to GHOST_IWindow interface.

I was going to use it for something, but decided to use glGetIntegerv(GL_SAMPLES, &i) instead.
It may be the case that neither this nor stereoVisual should be cached.

5 files changed, 30 insertions, 0 deletions

diff --git a/intern/ghost/GHOST_C-api.h b/intern/ghost/GHOST_C-api.h
index 2dbc48f8e21..b678d52c481 100644
--- a/intern/ghost/GHOST_C-api.h
+++ b/intern/ghost/GHOST_C-api.h
@@ -680,6 +680,12 @@ extern GHOST_TSuccess GHOST_SetSwapInterval(GHOST_WindowHandle windowhandle, int
 extern GHOST_TSuccess GHOST_GetSwapInterval(GHOST_WindowHandle windowhandle, int* intervalOut);
 
 /**
+ * Gets the current swap interval for swapBuffers.
+ * \return Number of AA Samples (0 if there is no multisample buffer)
+ */
+extern GHOST_TUns16 GHOST_GetNumOfAASamples(GHOST_WindowHandle windowhandle);
+
+/**
  * Activates the drawing context of this window.
  * \param windowhandle The handle to the window
  * \return An intean success indicator.
diff --git a/intern/ghost/GHOST_IWindow.h b/intern/ghost/GHOST_IWindow.h
index 85649746b9b..ba3797a77e7 100644
--- a/intern/ghost/GHOST_IWindow.h
+++ b/intern/ghost/GHOST_IWindow.h
@@ -219,6 +219,12 @@ public:
 	virtual GHOST_TSuccess getSwapInterval(int& intervalOut) = 0;
 
 	/**
+	 * Gets the current swap interval for swapBuffers.
+	 * \return Number of AA Samples (0 if there is no multisample buffer)
+	 */
+	virtual GHOST_TUns16 getNumOfAASamples() = 0;
+
+	/**
 	 * Activates the drawing context of this window.
 	 * \return  A boolean success indicator.
 	 */
diff --git a/intern/ghost/intern/GHOST_C-api.cpp b/intern/ghost/intern/GHOST_C-api.cpp
index f074e2b0ecc..731cb29ee27 100644
--- a/intern/ghost/intern/GHOST_C-api.cpp
+++ b/intern/ghost/intern/GHOST_C-api.cpp
@@ -706,6 +706,13 @@ GHOST_TSuccess GHOST_GetSwapInterval(GHOST_WindowHandle windowhandle, int* inter
 }
 
 
+GHOST_TUns16 GHOST_GetNumOfAASamples(GHOST_WindowHandle windowhandle)
+{
+	GHOST_IWindow *window = (GHOST_IWindow *) windowhandle;
+
+	return window->getNumOfAASamples();
+}
+
 GHOST_TSuccess GHOST_ActivateWindowDrawingContext(GHOST_WindowHandle windowhandle)
 {
 	GHOST_IWindow *window = (GHOST_IWindow *) windowhandle;
diff --git a/intern/ghost/intern/GHOST_Window.cpp b/intern/ghost/intern/GHOST_Window.cpp
index a320b6a67be..82dc039b840 100644
--- a/intern/ghost/intern/GHOST_Window.cpp
+++ b/intern/ghost/intern/GHOST_Window.cpp
@@ -131,6 +131,11 @@ GHOST_TSuccess GHOST_Window::getSwapInterval(int& intervalOut)
 	return m_context->getSwapInterval(intervalOut);
 }
 
+GHOST_TUns16 GHOST_Window::getNumOfAASamples()
+{
+	return m_context->getNumOfAASamples();
+}
+
 GHOST_TSuccess GHOST_Window::activateDrawingContext()
 {
 	return m_context->activateDrawingContext();
diff --git a/intern/ghost/intern/GHOST_Window.h b/intern/ghost/intern/GHOST_Window.h
index 53a547660c9..c6634d39618 100644
--- a/intern/ghost/intern/GHOST_Window.h
+++ b/intern/ghost/intern/GHOST_Window.h
@@ -207,6 +207,12 @@ public:
 	virtual GHOST_TSuccess getSwapInterval(int& intervalOut);
 
 	/**
+	 * Gets the current swap interval for swapBuffers.
+	 * \return Number of AA Samples (0 if there is no multisample buffer)
+	 */
+	virtual GHOST_TUns16 getNumOfAASamples();
+
+	/**
 	 * Tells if the ongoing drag'n'drop object can be accepted upon mouse drop
 	 */
 	virtual void setAcceptDragOperation(bool canAccept);