Add null joypad driver

Makefile

@@ -134,6 +134,16 @@ $(OBJDIR)/tools/input_common_joyconfig.o: input/input_common.c
 	@$(if $(Q), $(shell echo echo CC $<),)
 	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
 
+$(OBJDIR)/tools/nullinput_joyconfig.o: input/nullinput.c
+	@mkdir -p $(dir $@)
+	@$(if $(Q), $(shell echo echo CC $<),)
+	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
+
+$(OBJDIR)/tools/nullinput_joypad_joyconfig.o: input/nullinput_joypad.c
+	@mkdir -p $(dir $@)
+	@$(if $(Q), $(shell echo echo CC $<),)
+	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
+
 $(OBJDIR)/tools/input_keymaps_joyconfig.o: input/input_keymaps.c
 	@mkdir -p $(dir $@)
 	@$(if $(Q), $(shell echo echo CC $<),)

Makefile.common

@@ -145,6 +145,7 @@ OBJ += frontend/frontend.o \
 		gfx/nullgfx.o \
 		audio/nullaudio.o \
 		input/nullinput.o \
+		input/nullinput_joypad.o \
 		input/osk/nullosk.o \
 		playlist.o \
 		movie.o \
@@ -638,6 +639,8 @@ JOYCONFIG_OBJ += tools/retroarch-joyconfig.o \
 	libretro-sdk/file/file_path.o \
 	libretro-sdk/string/string_list.o \
 	libretro-sdk/compat/compat.o \
+	input/nullinput.o \
+	input/nullinput_joypad.o \
 	tools/input_context_joyconfig.o \
 	tools/input_common_joyconfig.o \
 	tools/input_keymaps_joyconfig.o

Makefile.win

@@ -171,6 +171,16 @@ $(OBJDIR)/tools/input_context_joyconfig.o: input/input_context.c
 	@$(if $(Q), $(shell echo echo CC $<),)
 	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
 
+$(OBJDIR)/tools/nullinput_joyconfig.o: input/nullinput.c
+	@mkdir -p $(dir $@)
+	@$(if $(Q), $(shell echo echo CC $<),)
+	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
+
+$(OBJDIR)/tools/nullinput_joypad_joyconfig.o: input/nullinput_joypad.c
+	@mkdir -p $(dir $@)
+	@$(if $(Q), $(shell echo echo CC $<),)
+	$(Q)$(CC) $(CFLAGS) $(DEFINES) -MMD -DIS_JOYCONFIG -c -o $@ $<
+
 $(OBJDIR)/%.o: %.cpp
 	@mkdir -p $(dir $@)
 	@$(if $(Q), $(shell echo echo CXX $<),)

config.def.h

@@ -101,6 +101,7 @@ enum
    JOYPAD_APPLE_HID,
    JOYPAD_APPLE_IOS,
    JOYPAD_QNX,
+   JOYPAD_NULL,
 
    CAMERA_V4L2,
    CAMERA_RWEBCAM,

griffin/griffin.c

@@ -370,6 +370,7 @@ INPUT
 #endif
 
 #include "../input/nullinput.c"
+#include "../input/nullinput_joypad.c"
 
 /*============================================================
 STATE TRACKER

input/input_context.c

@@ -66,6 +66,7 @@ rarch_joypad_driver_t *joypad_drivers[] = {
 #ifdef __QNX__
    &qnx_joypad,
 #endif
+   &null_joypad,
    NULL,
 };
 

input/input_context.h

@@ -62,6 +62,7 @@ extern rarch_joypad_driver_t apple_hid_joypad;
 extern rarch_joypad_driver_t apple_ios_joypad;
 extern rarch_joypad_driver_t android_joypad;
 extern rarch_joypad_driver_t qnx_joypad;
+extern rarch_joypad_driver_t null_joypad;
 
 #ifdef __cplusplus
 }

input/nullinput_joypad.c

@@ -0,0 +1,67 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2014 - Daniel De Matteis
+ *  Copyright (C) 2013-2014 - CatalystG
+ *
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <boolean.h>
+#include "input_context.h"
+
+static const char *null_joypad_name(unsigned pad)
+{
+   return "null";
+}
+
+static bool null_joypad_init(void)
+{
+   return true;
+}
+
+static bool null_joypad_button(unsigned port_num, uint16_t joykey)
+{
+   return false;
+}
+
+static int16_t null_joypad_axis(unsigned port_num, uint32_t joyaxis)
+{
+   return 0;
+}
+
+static void null_joypad_poll(void)
+{
+}
+
+static bool null_joypad_query_pad(unsigned pad)
+{
+   return true;
+}
+
+
+static void null_joypad_destroy(void)
+{
+}
+
+rarch_joypad_driver_t null_joypad = {
+   null_joypad_init,
+   null_joypad_query_pad,
+   null_joypad_destroy,
+   null_joypad_button,
+   null_joypad_axis,
+   null_joypad_poll,
+   NULL,
+   null_joypad_name,
+   "null",
+};

settings.c

@@ -210,6 +210,8 @@ const char *config_get_default_joypad(void)
          return "apple_ios";
       case JOYPAD_QNX:
          return "qnx";
+      case JOYPAD_NULL:
+         return "null";
    }
 
    return NULL;