server/shadow: Export API to set built-in subsystem modules for freerdp-shadow-subsystem

include/freerdp/server/shadow.h

@@ -277,7 +277,9 @@ typedef struct _SHADOW_MSG_OUT_AUDIO_OUT_VOLUME SHADOW_MSG_OUT_AUDIO_OUT_VOLUME;
 extern "C" {
 #endif
 
+FREERDP_API void shadow_subsystem_set_entry_builtin(const char* name);
 FREERDP_API void shadow_subsystem_set_entry(pfnShadowSubsystemEntry pEntry);
+
 FREERDP_API int shadow_subsystem_pointer_convert_alpha_pointer_data(BYTE* pixels, BOOL premultiplied,
 		UINT32 width, UINT32 height, SHADOW_MSG_OUT_POINTER_ALPHA_UPDATE* pointerColor);
 

server/shadow/CMakeLists.txt

@@ -97,6 +97,9 @@ set_property(TARGET ${MODULE_NAME} PROPERTY FOLDER "Server/shadow")
 set(MODULE_NAME "freerdp-shadow-subsystem")
 set(MODULE_PREFIX "FREERDP_SERVER_SHADOW_SUBSYSTEM")
 
+set(${MODULE_PREFIX}_SRCS		
+	shadow_subsystem_builtin.c)		
+
 if(WIN32)
 	set(WITH_SHADOW_WIN 1)
 elseif(X11_FOUND AND NOT APPLE)
@@ -245,15 +248,15 @@ set(${MODULE_PREFIX}_MAC_SRCS
 
 if(WITH_SHADOW_WIN)
 	add_definitions(-DWITH_SHADOW_WIN)
-	set(${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_WIN_SRCS})
+	list(APPEND ${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_WIN_SRCS})
 	list(APPEND ${MODULE_PREFIX}_LIBS ${${MODULE_PREFIX}_WIN_LIBS})
 elseif(WITH_SHADOW_X11)
 	add_definitions(-DWITH_SHADOW_X11)
-	set(${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_X11_SRCS})
+	list(APPEND ${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_X11_SRCS})
 	list(APPEND ${MODULE_PREFIX}_LIBS ${${MODULE_PREFIX}_X11_LIBS})
 elseif(WITH_SHADOW_MAC)
 	add_definitions(-DWITH_SHADOW_MAC)
-	set(${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_MAC_SRCS})
+	list(APPEND ${MODULE_PREFIX}_SRCS ${${MODULE_PREFIX}_MAC_SRCS})
 	list(APPEND ${MODULE_PREFIX}_LIBS ${${MODULE_PREFIX}_MAC_LIBS})
 endif()
 

server/shadow/shadow.c

@@ -37,18 +37,6 @@ static BOOL g_MessagePump = FALSE;
 
 #include <freerdp/server/shadow.h>
 
-#ifdef WITH_SHADOW_X11
-extern int X11_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
-#endif
-
-#ifdef WITH_SHADOW_MAC
-extern int Mac_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
-#endif
-
-#ifdef WITH_SHADOW_WIN
-extern int Win_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
-#endif
-
 int main(int argc, char** argv)
 {
 	MSG msg;
@@ -56,17 +44,7 @@ int main(int argc, char** argv)
 	DWORD dwExitCode;
 	rdpShadowServer* server;
 
-#ifdef WITH_SHADOW_X11
-	shadow_subsystem_set_entry(X11_ShadowSubsystemEntry);
-#endif
-
-#ifdef WITH_SHADOW_MAC
-	shadow_subsystem_set_entry(Mac_ShadowSubsystemEntry);
-#endif
-
-#ifdef WITH_SHADOW_WIN
-	shadow_subsystem_set_entry(Win_ShadowSubsystemEntry);
-#endif
+	shadow_subsystem_set_entry_builtin(NULL);
 
 	server = shadow_server_new();
 

server/shadow/shadow_subsystem_builtin.c

@@ -0,0 +1,96 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ *
+ * Copyright 2016 Jiang Zihao <zihao.jiang@yahoo.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <freerdp/server/shadow.h>
+
+struct _RDP_SHADOW_SUBSYSTEM
+{
+	const char* name;
+	pfnShadowSubsystemEntry entry;
+};
+typedef struct _RDP_SHADOW_SUBSYSTEM RDP_SHADOW_SUBSYSTEM;
+
+#ifdef WITH_SHADOW_X11
+extern int X11_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
+#endif
+
+#ifdef WITH_SHADOW_MAC
+extern int Mac_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
+#endif
+
+#ifdef WITH_SHADOW_WIN
+extern int Win_ShadowSubsystemEntry(RDP_SHADOW_ENTRY_POINTS* pEntryPoints);
+#endif
+
+static RDP_SHADOW_SUBSYSTEM g_Subsystems[] =
+{
+
+#ifdef WITH_SHADOW_X11
+	{ "X11", X11_ShadowSubsystemEntry },
+#endif
+
+#ifdef WITH_SHADOW_MAC
+	{ "Mac", Mac_ShadowSubsystemEntry },
+#endif
+
+#ifdef WITH_SHADOW_WIN
+	{ "Win", Win_ShadowSubsystemEntry },
+#endif
+
+	{ "", NULL }
+};
+
+static int g_SubsystemCount = (sizeof(g_Subsystems) / sizeof(g_Subsystems[0]));
+
+static pfnShadowSubsystemEntry shadow_subsystem_load_static_entry(const char* name)
+{
+	int index;
+
+	if (!name)
+	{
+		for (index = 0; index < g_SubsystemCount; index++)
+		{
+			if (g_Subsystems[index].name)
+				return g_Subsystems[index].entry;
+		}
+	}
+
+	for (index = 0; index < g_SubsystemCount; index++)
+	{
+		if (strcmp(name, g_Subsystems[index].name) == 0)
+			return g_Subsystems[index].entry;
+	}
+
+	return NULL;
+}
+
+void shadow_subsystem_set_entry_builtin(const char* name)
+{
+	pfnShadowSubsystemEntry entry;
+
+	entry = shadow_subsystem_load_static_entry(name);
+
+	if (entry)
+		shadow_subsystem_set_entry(entry);
+
+	return;
+}