Implement mge_get_video_size

Required for capture on legacy Mupen64, as it needs a way to request the video size in a thread and wgl context-agnostic way

src/PluginAPI.h

@@ -63,6 +63,7 @@ class PluginAPI
 	void DllConfig(HWND _hParent);
 	void GetDllInfo (PLUGIN_INFO * PluginInfo);
 	void ReadScreen(void **_dest, long *_width, long *_height);
+	void GetVideoSize(int32_t* width, int32_t* height);
 
 	void DllAbout(/*HWND _hParent*/);
 

src/ZilmarGFX_1_3.h

@@ -20,6 +20,7 @@ the plugin
 #define _GFX_H_INCLUDED__
 
 #if defined(__cplusplus)
+#include <cstdint>
 extern "C" {
 #endif
 
@@ -285,6 +286,15 @@ EXPORT void CALL ReadScreen (void **dest, long *width, long *height);
  ******************************************************************/
 EXPORT void CALL DllCrtFree(void* addr);
 
+/******************************************************************
+  Function: mge_get_video_size
+  Purpose:  Gets the current video size.
+  Input:    width - Pointer receiving the video width. Can be null.
+		    height - Pointer receiving the video height. Can be null.
+  Output:   none
+ ******************************************************************/
+EXPORT void CALL mge_get_video_size(int32_t* width, int32_t* height);
+
 #if defined(__cplusplus)
 }
 #endif

src/ZilmarPluginAPI.cpp

@@ -60,4 +60,9 @@ EXPORT void CALL DllCrtFree(void* addr)
 	free(addr);
 }
 
+void CALL mge_get_video_size(int32_t* width, int32_t* height)
+{
+	api().GetVideoSize(width, height);
+}
+
 }

src/common/CommonAPIImpl_common.cpp

@@ -312,4 +312,17 @@ void PluginAPI::ReadScreen(void **_dest, long *_width, long *_height)
 	dwnd().readScreen(_dest, _width, _height);
 #endif
 }
+
+void PluginAPI::GetVideoSize(int32_t* width, int32_t* height)
+{
+	if (width)
+	{
+		*width = dwnd().getWidth();
+	}
+	if (height)
+	{
+		*height = dwnd().getHeight();
+	}
+}
+
 #endif