Input backend refactoring

Get rid of input backend function pointers + some code cleanup that is no longer necessary

src/backends/generic/header/input.h

@@ -27,8 +27,9 @@
 #ifndef GEN_INPUT_H
 #define GEN_INPUT_H
 
+#include "../../../common/header/shared.h"
+
 typedef void (*Key_Event_fp_t)(int key, qboolean down);
-extern void (*IN_Update_fp)(void);
 
 typedef struct in_state
 {
@@ -40,4 +41,40 @@ typedef struct in_state
 	int *in_speed_state;
 } in_state_t;
 
+/*
+ * Keyboard initialisation. Called by the client.
+ */
+void IN_KeyboardInit(Key_Event_fp_t fp);
+
+/*
+ * Updates the state of the input queue
+ */
+void IN_Update(void);
+
+/*
+ * Initializes the input backend
+ */
+void IN_BackendInit(in_state_t *in_state_p);
+
+/*
+ * Shuts the backend down
+ */
+void IN_BackendShutdown(void);
+
+/*
+ * Shuts the input backend down
+ */
+void IN_BackendMouseButtons(void);
+
+/*
+ * Move handling
+ */
+void IN_BackendMove(usercmd_t *cmd);
+
+/*
+ * Closes all inputs and clears
+ * the input queue.
+ */
+void IN_Close(void);
+
 #endif

src/backends/generic/vid.c

@@ -53,21 +53,13 @@ cvar_t *vid_fullscreen;
 
 /* Global variables used internally by this module */
 viddef_t viddef;                /* global video state; used by other modules */
-void *reflib_library;           /* Handle to refresh DLL */
 qboolean reflib_active = 0;
 
 #define VID_NUM_MODES (sizeof(vid_modes) / sizeof(vid_modes[0]))
 
 void Do_Key_Event(int key, qboolean down);
 
-void (*IN_Update_fp)(void);
+// Input state
-void (*IN_KeyboardInit_fp)(Key_Event_fp_t fp);
-void (*IN_Close_fp)(void);
-void (*IN_BackendInit_fp)(in_state_t *in_state_p);
-void (*IN_BackendShutdown_fp)(void);
-void (*IN_BackendMouseButtons_fp)(void);
-void (*IN_BackendMove_fp)(usercmd_t *cmd);
-
 in_state_t in_state;
 
 #define MAXPRINTMSG 4096
@@ -175,7 +167,7 @@ VID_NewWindow(int width, int height)
 void
 VID_FreeReflib(void)
 {
-	if (reflib_library)
+	/*if (reflib_library)
 	{
 		if (IN_Close_fp)
 		{
@@ -186,35 +178,27 @@ VID_FreeReflib(void)
 		{
 			IN_BackendShutdown_fp();
 		}
+	}*/
 
-		//Sys_FreeLibrary(reflib_library);
+	// Shut down the input backend
-	}
+	IN_Close();
-
+	IN_BackendShutdown();
-	IN_KeyboardInit_fp = NULL;
-	IN_Update_fp = NULL;
-	IN_Close_fp = NULL;
-	IN_BackendInit_fp = NULL;
-	IN_BackendShutdown_fp = NULL;
-	IN_BackendMouseButtons_fp = NULL;
-	IN_BackendMove_fp = NULL;
 
+	// Get rid of refexport function pointers
 	memset(&re, 0, sizeof(re));
-	reflib_library = NULL;
+
+	// Declare the refresher as inactive
 	reflib_active = false;
 }
 
 qboolean
 VID_LoadRefresh(char *name)
 {
-	refimport_t ri;
+	refimport_t ri; // Refresh imported functions
-	//R_GetRefAPI_t GetRefAPI;
-
-	char fn[MAX_OSPATH];
-	char *path;
 
 	if (reflib_active)
 	{
-		if (IN_Close_fp)
+		/*if (IN_Close_fp)
 		{
 			IN_Close_fp();
 		}
@@ -222,27 +206,15 @@ VID_LoadRefresh(char *name)
 		if (IN_BackendShutdown_fp)
 		{
 			IN_BackendShutdown_fp();
-		}
+		}*/
 
-		IN_Close_fp = NULL;
-		IN_BackendShutdown_fp = NULL;
 		re.Shutdown();
 		VID_FreeReflib();
 	}
 
 	Com_Printf("----- refresher initialization -----\n");
 
-	path = Cvar_Get("basedir", ".", CVAR_NOSET)->string;
+	// Fill in client functions for the refresher
-	snprintf(fn, MAX_OSPATH, "%s/%s", path, name);
-
-	/*Sys_LoadLibrary(fn, NULL, &reflib_library);
-
-	if (reflib_library == 0)
-	{
-		return false;
-	}*/
-
-
 	ri.Cmd_AddCommand = Cmd_AddCommand;
 	ri.Cmd_RemoveCommand = Cmd_RemoveCommand;
 	ri.Cmd_Argc = Cmd_Argc;
@@ -264,20 +236,8 @@ VID_LoadRefresh(char *name)
 	ri.Vid_MenuInit = VID_MenuInit;
 	ri.Vid_NewWindow = VID_NewWindow;
 
-	/*if ((GetRefAPI = (void *)Sys_GetProcAddress(reflib_library, "R_GetRefAPI")) == 0)
+	// Get refresher API
-	{
+	re = R_GetRefAPI(ri);
-		Com_Error(ERR_FATAL, "Sys_GetProcAddress failed on %s", name);
-	}*/
-
-	//re = GetRefAPI(ri);
-        re = R_GetRefAPI(ri);
-        
-        // This is never going to happen
-	/*if (re.api_version != API_VERSION)
-	{
-		VID_FreeReflib();
-		Com_Error(ERR_FATAL, "%s has incompatible api_version", name);
-	}*/
 
 	/* Init IN (Mouse) */
 	in_state.IN_CenterView_fp = IN_CenterView;
@@ -286,18 +246,8 @@ VID_LoadRefresh(char *name)
 	in_state.in_strafe_state = &in_strafe.state;
 	in_state.in_speed_state = &in_speed.state;
 
-	if (((IN_BackendInit_fp = Sys_GetProcAddress(reflib_library, "IN_BackendInit")) == NULL) ||
+	// Initiate the input backend
-		((IN_BackendShutdown_fp = Sys_GetProcAddress(reflib_library, "IN_BackendShutdown")) == NULL) ||
+	IN_BackendInit (&in_state);
-		((IN_BackendMouseButtons_fp = Sys_GetProcAddress(reflib_library, "IN_BackendMouseButtons")) == NULL) ||
-		((IN_BackendMove_fp = Sys_GetProcAddress(reflib_library, "IN_BackendMove")) == NULL))
-	{
-		Com_Error(ERR_FATAL, "No input backend init functions in REF.\n");
-	}
-
-	if (IN_BackendInit_fp)
-	{
-		IN_BackendInit_fp(&in_state);
-	}
 
 	if (re.Init(0, 0) == -1)
 	{
@@ -306,15 +256,8 @@ VID_LoadRefresh(char *name)
 		return false;
 	}
 
-	/* Init IN */
+	// Initiate keyboard at the input backend
-	if (((IN_KeyboardInit_fp = Sys_GetProcAddress(reflib_library, "IN_KeyboardInit")) == NULL) ||
+	IN_KeyboardInit (Do_Key_Event);
-		((IN_Update_fp = Sys_GetProcAddress(reflib_library, "IN_Update")) == NULL) ||
-		((IN_Close_fp = Sys_GetProcAddress(reflib_library, "IN_Close")) == NULL))
-	{
-		Com_Error(ERR_FATAL, "No keyboard input functions in REF.\n");
-	}
-
-	IN_KeyboardInit_fp(Do_Key_Event);
 	Key_ClearStates();
 
 	Com_Printf("------------------------------------\n\n");
@@ -347,12 +290,7 @@ VID_CheckChanges(void)
 		cl.cinematicpalette_active = false;
 		cls.disable_screen = true;
 
-#ifdef _WIN32
+		// Proceed to reboot the refresher
-		sprintf(name, "ref_%s.dll", vid_ref->string);
-#else
-		sprintf(name, "ref_%s.so", vid_ref->string);
-#endif
-
 		if (!VID_LoadRefresh(name))
 		{
 			Cvar_Set("vid_ref", "gl");
@@ -385,7 +323,7 @@ VID_Shutdown(void)
 {
 	if (reflib_active)
 	{
-		if (IN_Close_fp)
+		/*if (IN_Close_fp)
 		{
 			IN_Close_fp();
 		}
@@ -393,10 +331,8 @@ VID_Shutdown(void)
 		if (IN_BackendShutdown_fp)
 		{
 			IN_BackendShutdown_fp();
-		}
+		}*/
 
-		IN_Close_fp = NULL;
-		IN_BackendShutdown_fp = NULL;
 		re.Shutdown();
 		VID_FreeReflib();
 	}
@@ -407,28 +343,19 @@ VID_Shutdown(void)
 void
 IN_Shutdown(void)
 {
-	if (IN_BackendShutdown_fp)
+	IN_BackendShutdown();
-	{
-		IN_BackendShutdown_fp();
-	}
 }
 
 void
 IN_Commands(void)
 {
-	if (IN_BackendMouseButtons_fp)
+	IN_BackendMouseButtons();
-	{
-		IN_BackendMouseButtons_fp();
-	}
 }
 
 void
 IN_Move(usercmd_t *cmd)
 {
-	if (IN_BackendMove_fp)
+	IN_BackendMove (cmd);
-	{
-		IN_BackendMove_fp(cmd);
-	}
 }
 
 void

src/backends/sdl/input.c

@@ -598,8 +598,7 @@ IN_MLookUp(void)
 }
 
 /*
- * Keyboard initialisation. Called
+ * Keyboard initialisation. Called by the client.
- * by the client via function pointer
  */
 void
 IN_KeyboardInit(Key_Event_fp_t fp)

src/backends/unix/system.c

@@ -468,10 +468,7 @@ void
 Sys_SendKeyEvents(void)
 {
 #ifndef DEDICATED_ONLY
-	if (IN_Update_fp)
+	IN_Update();
-	{
-		IN_Update_fp();
-	}
 #endif
 
 	/* grab frame time */
@@ -499,7 +496,7 @@ Sys_GetHomeDir(void)
 void *
 Sys_GetProcAddress(void *handle, const char *sym)
 {
-    return dlsym(handle, sym);
+	return dlsym(handle, sym);
 }
 
 void *

src/backends/windows/system.c

@@ -300,12 +300,7 @@ void
 Sys_SendKeyEvents(void)
 {
 #ifndef DEDICATED_ONLY
-
+	IN_Update();
-	if ( IN_Update_fp )
-	{
-		IN_Update_fp();
-	}
-
 #endif
 
 	/* grab frame time */