add input_mapper scafolding

Makefile.common

@@ -1441,6 +1441,10 @@ ifeq ($(HAVE_NETWORKING), 1)
       endif
    endif
 
+   ifeq ($(HAVE_KEYMAPPER), 1)
+      OBJ += input/input_mapper.o
+   endif
+
    ifeq ($(HAVE_NETWORKGAMEPAD), 1)
       OBJ += input/input_remote.o \
              cores/libretro-net-retropad/net_retropad_core.o

command.c

@@ -2491,6 +2491,14 @@ TODO: Add a setting for these tweaks */
          command_event(CMD_EVENT_REMOTE_DEINIT, NULL);
          input_driver_init_remote();
          break;
+
+      case CMD_EVENT_MAPPER_DEINIT:
+         input_driver_deinit_mapper();
+         break;
+      case CMD_EVENT_MAPPER_INIT:
+         command_event(CMD_EVENT_MAPPER_DEINIT, NULL);
+         input_driver_init_mapper();
+      break;
       case CMD_EVENT_LOG_FILE_DEINIT:
          retro_main_log_file_deinit();
          break;

command.h

@@ -193,6 +193,10 @@ enum event_command
    CMD_EVENT_REMOTE_INIT,
    /* Deinitializes remote gamepad interface. */
    CMD_EVENT_REMOTE_DEINIT,
+   /* Initializes keyboard to gamepad mapper interface. */
+   CMD_EVENT_MAPPER_INIT,
+   /* Deinitializes keyboard to gamepad mapper interface. */
+   CMD_EVENT_MAPPER_DEINIT,
    /* Reinitializes audio driver. */
    CMD_EVENT_AUDIO_REINIT,
    /* Resizes windowed scale. Will reinitialize video driver. */

configuration.c

@@ -1241,6 +1241,9 @@ static struct config_bool_setting *populate_settings_bool(settings_t *settings,
 #ifdef HAVE_NETWORKGAMEPAD
    SETTING_BOOL("network_remote_enable",        &settings->bools.network_remote_enable, false, false /* TODO */, false);
 #endif
+#ifdef HAVE_KEYMAPPER
+   SETTING_BOOL("keyboard_mapper_enable",       &settings->bools.keyboard_mapper_enable, false, false /* TODO */, false);
+#endif
 #ifdef HAVE_NETWORKING
    SETTING_BOOL("netplay_nat_traversal",        &settings->bools.netplay_nat_traversal, true, true, false);
 #endif
@@ -1343,6 +1346,9 @@ static struct config_uint_setting *populate_settings_uint(settings_t *settings,
 #ifdef HAVE_NETWORKGAMEPAD
    SETTING_UINT("network_remote_base_port",     &settings->uints.network_remote_base_port, true, network_remote_base_port, false);
 #endif
+#ifdef HAVE_KEYMAPPER
+   SETTING_UINT("keyboard_mapper_port",         &settings->uints.keyboard_mapper_port, true, network_remote_base_port, false);
+#endif
 #ifdef GEKKO
    SETTING_UINT("video_viwidth",                &settings->uints.video_viwidth, true, video_viwidth, false);
 #endif

configuration.h

@@ -199,6 +199,7 @@ typedef struct settings
       bool savestate_thumbnail_enable;
       bool network_cmd_enable;
       bool stdin_cmd_enable;
+      bool keyboard_mapper_enable;
       bool network_remote_enable;
       bool network_remote_enable_user[MAX_USERS];
       bool load_dummy_on_core_shutdown;
@@ -303,6 +304,7 @@ typedef struct settings
       unsigned autosave_interval;
       unsigned network_cmd_port;
       unsigned network_remote_base_port;
+      unsigned keyboard_mapper_port;
       unsigned video_window_x;
       unsigned video_window_y;
       unsigned video_monitor_index;

griffin/griffin.c

@@ -1097,6 +1097,10 @@ MENU
 #include "../cores/libretro-net-retropad/net_retropad_core.c"
 #endif
 
+#ifdef HAVE_KEYMAPPER
+#include "../input/input_mapper.c"
+#endif
+
 #include "../command.c"
 
 #ifdef __cplusplus

input/input_driver.c

@@ -34,6 +34,10 @@
 #include "input_remote.h"
 #endif
 
+#ifdef HAVE_KEYMAPPER
+#include "input_mapper.h"
+#endif
+
 #include "input_driver.h"
 #include "input_keymaps.h"
 #include "input_remapping.h"
@@ -346,6 +350,9 @@ static command_t *input_driver_command            = NULL;
 #ifdef HAVE_NETWORKGAMEPAD
 static input_remote_t *input_driver_remote        = NULL;
 #endif
+#ifdef HAVE_KEYMAPPER
+static input_mapper_t *input_driver_mapper        = NULL;
+#endif
 const input_driver_t *current_input               = NULL;
 void *current_input_data                          = NULL;
 static bool input_driver_block_hotkey             = false;
@@ -1327,6 +1334,15 @@ void input_driver_deinit_remote(void)
 #endif
 }
 
+void input_driver_deinit_mapper(void)
+{
+#ifdef HAVE_NETWORKGAMEPAD
+   if (input_driver_mapper)
+      input_mapper_free(input_driver_mapper);
+   input_driver_mapper = NULL;
+#endif
+}
+
 bool input_driver_init_remote(void)
 {
 #ifdef HAVE_NETWORKGAMEPAD
@@ -1347,6 +1363,26 @@ bool input_driver_init_remote(void)
    return false;
 }
 
+bool input_driver_init_mapper(void)
+{
+#ifdef HAVE_KEYMAPPER
+   settings_t *settings = config_get_ptr();
+
+   if (!settings->bools.keyboard_mapper_enable)
+      return false;
+
+   input_driver_mapper = input_mapper_new(
+         settings->uints.keyboard_mapper_port);
+
+   if (input_driver_mapper)
+      return true;
+
+   RARCH_ERR("Failed to initialize input mapper.\n");
+#endif
+   return false;
+}
+
+
 bool input_driver_grab_mouse(void)
 {
    if (!current_input || !current_input->grab_mouse)

input/input_driver.h

@@ -397,6 +397,10 @@ void input_driver_deinit_remote(void);
 
 bool input_driver_init_remote(void);
 
+void input_driver_deinit_mapper(void);
+
+bool input_driver_init_mapper(void);
+
 bool input_driver_grab_mouse(void);
 
 bool input_driver_ungrab_mouse(void);

input/input_mapper.c

@@ -0,0 +1,96 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2017 - Daniel De Matteis
+ *  Copyright (C) 2016-2017 - Andrés Suárez
+ *
+ *  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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+#include <direct.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#include <file/file_path.h>
+#include <retro_miscellaneous.h>
+#include <libretro.h>
+#include <net/net_compat.h>
+#include <net/net_socket.h>
+
+#ifdef HAVE_CONFIG_H
+#include "../config.h"
+#endif
+
+#include "input_mapper.h"
+
+#include "../configuration.h"
+#include "../msg_hash.h"
+#include "../verbosity.h"
+
+
+struct input_mapper
+{
+
+#if defined(HAVE_NETWORKING) && defined(HAVE_NETWORKGAMEPAD)
+   int net_fd[MAX_USERS];
+#endif
+
+   bool state[RARCH_BIND_LIST_END];
+};
+
+typedef struct input_mapper_state
+{
+   /* This is a bitmask of (1 << key_bind_id). */
+   uint64_t buttons;
+   /* Left X, Left Y, Right X, Right Y */
+   int16_t analog[4]; 
+   /* the whole keyboard state */
+   uint32_t keys[RETROK_LAST / 32 + 1];
+} input_mapper_state_t;
+
+input_mapper_t *input_mapper_new(uint16_t port)
+{
+   return NULL;
+}
+
+void input_mapper_free(input_mapper_t *handle)
+{
+   return;
+}
+
+void input_mapper_poll(input_mapper_t *handle, unsigned max_users)
+{
+   return;
+}
+
+bool input_mapper_key_pressed(int key, unsigned port)
+{
+   return false;
+}
+
+void input_mapper_state(
+      int16_t *ret,
+      unsigned port,
+      unsigned device,
+      unsigned idx,
+      unsigned id)
+{
+   return;
+}

input/input_mapper.h

@@ -0,0 +1,51 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2017 - Daniel De Matteis
+ *  Copyright (C) 2016-2017 - Andrés Suárez
+ * 
+ *  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/>.
+ */
+
+#ifndef INPUT_MAPPER_H__
+#define INPUT_MAPPER_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdint.h>
+
+#include <boolean.h>
+#include <retro_common_api.h>
+
+RETRO_BEGIN_DECLS
+
+typedef struct input_mapper input_mapper_t;
+
+input_mapper_t *input_mapper_new(uint16_t port);
+
+void input_mapper_free(input_mapper_t *handle);
+
+void input_mapper_poll(input_mapper_t *handle, unsigned max_users);
+
+bool input_mapper_key_pressed(int key, unsigned port);
+
+void input_mapper_state(
+      int16_t *ret,
+      unsigned port,
+      unsigned device,
+      unsigned idx,
+      unsigned id);
+
+RETRO_END_DECLS
+
+#endif

input/input_remapping.c

@@ -1,6 +1,6 @@
 /*  RetroArch - A frontend for libretro.
  *  Copyright (C) 2011-2017 - Daniel De Matteis
- *  Copyright (C) 2015-2017 - Andrés Suárez
+ *  Copyright (C) 2016-2017 - Andrés Suárez
  *
  *  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-

input/input_remapping.h

@@ -1,5 +1,6 @@
 /*  RetroArch - A frontend for libretro.
  *  Copyright (C) 2011-2017 - Daniel De Matteis
+ *  Copyright (C) 2016-2017 - Andrés Suárez
  *
  *  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-

input/input_remote.c

@@ -169,18 +169,18 @@ void input_remote_free(input_remote_t *handle, unsigned max_users)
 #if defined(HAVE_NETWORKING) && defined(HAVE_NETWORKGAMEPAD)
 static void input_remote_parse_packet(struct remote_message *msg, unsigned user)
 {
-   input_remote_state_t *ol_state  = input_remote_get_state_ptr();
+   input_remote_state_t *input_state  = input_remote_get_state_ptr();
 
    /* Parse message */
    switch (msg->device)
    {
       case RETRO_DEVICE_JOYPAD:
-         ol_state->buttons[user] &= ~(1 << msg->id);
+         input_state->buttons[user] &= ~(1 << msg->id);
          if (msg->state)
-            ol_state->buttons[user] |= 1 << msg->id;
+            input_state->buttons[user] |= 1 << msg->id;
          break;
       case RETRO_DEVICE_ANALOG:
-         ol_state->analog[msg->index * 2 + msg->id][user] = msg->state;
+         input_state->analog[msg->index * 2 + msg->id][user] = msg->state;
          break;
    }
 }
@@ -202,17 +202,17 @@ void input_remote_state(
       case RETRO_DEVICE_ANALOG:
          {
             unsigned base = 0;
-            input_remote_state_t *ol_state  = input_remote_get_state_ptr();
+            input_remote_state_t *input_state  = input_remote_get_state_ptr();
 
-            if (!ol_state)
+            if (!input_state)
                return;
 
             if (idx == RETRO_DEVICE_INDEX_ANALOG_RIGHT)
                base = 2;
             if (id == RETRO_DEVICE_ID_ANALOG_Y)
                base += 1;
-            if (ol_state && ol_state->analog[base][port])
+            if (input_state && input_state->analog[base][port])
-               *ret = ol_state->analog[base][port];
+               *ret = input_state->analog[base][port];
          }
          break;
    }
@@ -220,19 +220,19 @@ void input_remote_state(
 
 bool input_remote_key_pressed(int key, unsigned port)
 {
-   input_remote_state_t *ol_state  = input_remote_get_state_ptr();
+   input_remote_state_t *input_state  = input_remote_get_state_ptr();
 
-   if (!ol_state)
+   if (!input_state)
       return false;
 
-   return (ol_state->buttons[port] & (UINT64_C(1) << key));
+   return (input_state->buttons[port] & (UINT64_C(1) << key));
 }
 
 void input_remote_poll(input_remote_t *handle, unsigned max_users)
 {
    unsigned user;
    settings_t *settings            = config_get_ptr();
-   input_remote_state_t *ol_state  = input_remote_get_state_ptr();
+   input_remote_state_t *input_state  = input_remote_get_state_ptr();
    
    for(user = 0; user < max_users; user++)
    {
@@ -257,11 +257,11 @@ void input_remote_poll(input_remote_t *handle, unsigned max_users)
          else if ((ret != -1) || ((errno != EAGAIN) && (errno != ENOENT)))
 #endif
          {
-            ol_state->buttons[user] = 0;
+            input_state->buttons[user] = 0;
-            ol_state->analog[0][user] = 0;
+            input_state->analog[0][user] = 0;
-            ol_state->analog[1][user] = 0;
+            input_state->analog[1][user] = 0;
-            ol_state->analog[2][user] = 0;
+            input_state->analog[2][user] = 0;
-            ol_state->analog[3][user] = 0;
+            input_state->analog[3][user] = 0;
          }
       }
    }

qb/config.params.sh

@@ -28,6 +28,7 @@ HAVE_SSA=auto              # SSA/ASS for FFmpeg subtitle support
 HAVE_DYLIB=auto            # Dynamic loading support
 HAVE_NETWORKING=auto       # Networking features (recommended)
 HAVE_NETWORKGAMEPAD=auto   # Networked game pad (plus baked-in core)
+HAVE_KEYMAPPER=yes   # Networked game pad (plus baked-in core)
 C89_NETWORKGAMEPAD=no
 HAVE_MINIUPNPC=auto        # Mini UPnP client library (for NAT traversal)
 HAVE_BUILTINMINIUPNPC=yes  # Bake in Mini UPnP client library (for NAT traversal)

retroarch.c

@@ -1289,6 +1289,7 @@ bool retroarch_main_init(int argc, char *argv[])
    drivers_init(DRIVERS_CMD_ALL);
    command_event(CMD_EVENT_COMMAND_INIT, NULL);
    command_event(CMD_EVENT_REMOTE_INIT, NULL);
+   command_event(CMD_EVENT_MAPPER_INIT, NULL);
    command_event(CMD_EVENT_REWIND_INIT, NULL);
    command_event(CMD_EVENT_CONTROLLERS_INIT, NULL);
    command_event(CMD_EVENT_RECORD_INIT, NULL);
@@ -1455,6 +1456,7 @@ bool rarch_ctl(enum rarch_ctl_state state, void *data)
          command_event(CMD_EVENT_NETPLAY_DEINIT, NULL);
          command_event(CMD_EVENT_COMMAND_DEINIT, NULL);
          command_event(CMD_EVENT_REMOTE_DEINIT, NULL);
+         command_event(CMD_EVENT_MAPPER_DEINIT, NULL);
 
          command_event(CMD_EVENT_AUTOSAVE_DEINIT, NULL);