git.maemo.org Git - drnoksnes/blob - platform/hgw.cpp

   1 #include <stdio.h>
   2 #include <libgen.h>
   3 #include <hgw/hgw.h>
   4
   5 #include "platform.h"
   6 #include "hgw.h"
   7 #include "snes9x.h"
   8
   9 #define DIE(format, ...) do { \
  10                 fprintf(stderr, "Died at %s:%d: ", __FILE__, __LINE__ ); \
  11                 fprintf(stderr, format "\n", ## __VA_ARGS__); \
  12                 abort(); \
  13         } while (0);
  14
  15
  16 bool hgwLaunched;
  17 static HgwContext *hgw;
  18
  19 static void createActionMappingsOnly();
  20 static void parseGConfKeyMappings();
  21
  22 void HgwInit()
  23 {
  24         // hildon-games-wrapper sets this env variable for itself.
  25         char* service = getenv("HGW_EXEC_SERVICE");
  26
  27         if (!service) {
  28                 // Not launched from hildon-games-wrapper
  29                 hgwLaunched = false;
  30                 return;
  31         }
  32
  33         hgw = hgw_context_init();
  34
  35         if (!hgw) {
  36                 fprintf(stderr, "Error opening hgw context\n");
  37                 hgwLaunched = false;
  38         }
  39
  40         hgwLaunched = true;
  41         printf("Loading in HGW mode\n");
  42 }
  43
  44 void HgwDeinit()
  45 {
  46         if (!hgwLaunched) return;
  47
  48         hgw_context_destroy(hgw,
  49                 (Config.snapshotSave ? HGW_BYE_PAUSED : HGW_BYE_INACTIVE));
  50
  51         hgw = 0;
  52 }
  53
  54 void HgwConfig()
  55 {
  56         if (!hgwLaunched) return;
  57
  58         Config.fullscreen = true;
  59
  60         char romFile[PATH_MAX + 1];
  61         if (hgw_conf_request_string(hgw, kGConfRomFile, romFile) == HGW_ERR_NONE
  62                 && strlen(romFile) > 0) {
  63                 S9xSetRomFile(romFile);
  64         } else {
  65                 printf("Exiting gracefully because there's no ROM in Gconf\n");
  66                 HgwDeinit();
  67                 exit(0);
  68         }
  69
  70         char sound = FALSE;
  71         if (hgw_conf_request_bool(hgw, kGConfSound, &sound) == HGW_ERR_NONE) {
  72                 Config.enableAudio = sound ? true : false;
  73         }
  74
  75         char turbo = FALSE;
  76         if (hgw_conf_request_bool(hgw, kGConfTurboMode, &turbo) == HGW_ERR_NONE) {
  77                 Settings.TurboMode = turbo ? TRUE : FALSE;
  78         }
  79
  80         int frameskip = 0;
  81         if (hgw_conf_request_int(hgw, kGConfFrameskip, &frameskip) == HGW_ERR_NONE) {
  82                 Settings.SkipFrames = (frameskip > 0 ? frameskip : AUTO_FRAMERATE);
  83         }
  84
  85         char transparency = FALSE;
  86         if (hgw_conf_request_bool(hgw, kGConfTransparency, &transparency) == HGW_ERR_NONE) {
  87                 Settings.Transparency = transparency ? TRUE : FALSE;
  88         }
  89
  90         char scaler[NAME_MAX];
  91         if (hgw_conf_request_string(hgw, kGConfScaler, scaler) == HGW_ERR_NONE
  92                 && strlen(scaler) > 0) {
  93                 free(Config.scaler);
  94                 Config.scaler = strdup(scaler);
  95         }
  96
  97         char displayFramerate = FALSE;
  98         if (hgw_conf_request_bool(hgw, kGConfDisplayFramerate, &displayFramerate) == HGW_ERR_NONE) {
  99                 Settings.DisplayFrameRate = displayFramerate ? TRUE : FALSE;
 100         }
 101
 102         char displayControls = FALSE;
 103         if (hgw_conf_request_bool(hgw, kGConfDisplayControls, &displayControls) == HGW_ERR_NONE) {
 104                 Config.touchscreenShow = displayControls ? true : false;
 105         }
 106
 107         int speedhacks = 0;
 108         if (hgw_conf_request_int(hgw, kGConfSpeedhacks, &speedhacks) == HGW_ERR_NONE) {
 109                 if (speedhacks <= 0) {
 110                         Settings.HacksEnabled = FALSE;
 111                         Settings.HacksFilter = FALSE;
 112                 } else if (speedhacks == 1) {
 113                         Settings.HacksEnabled = TRUE;
 114                         Settings.HacksFilter = TRUE;
 115                 } else {
 116                         Settings.HacksEnabled = TRUE;
 117                         Settings.HacksFilter = FALSE;
 118                 }
 119         }
 120         if (Settings.HacksEnabled && !Config.hacksFile) {
 121                 // Provide a default speedhacks file
 122                 if (asprintf(&Config.hacksFile, "%s/snesadvance.dat", dirname(romFile))
 123                                 < 0) {
 124                         Config.hacksFile = 0; // malloc error.
 125                 }
 126                 // romFile[] is garbled from now on.
 127         }
 128
 129         int mappings = 0;
 130         if (hgw_conf_request_int(hgw, kGConfMapping, &mappings) == HGW_ERR_NONE) {
 131                 switch (mappings) {
 132                         case 0:
 133                                 // Do nothing, leave mappings as is.
 134                                 break;
 135                         case 1: // Keys
 136                                 parseGConfKeyMappings();
 137                                 break;
 138                         case 2: // Touchscreen
 139                                 Config.touchscreenInput = true;
 140                                 createActionMappingsOnly();
 141                                 break;
 142                         case 3: // Touchscreen + keys
 143                                 Config.touchscreenInput = true;
 144                                 parseGConfKeyMappings();
 145                                 break;
 146                         case 4: // Mouse
 147                                 Settings.Mouse = TRUE;
 148                                 Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 149                                 createActionMappingsOnly();
 150                                 break;
 151                         case 5: // Mouse + keys
 152                                 Settings.Mouse = TRUE;
 153                                 Settings.ControllerOption = SNES_MOUSE;
 154                                 parseGConfKeyMappings();
 155                                 break;
 156                 }
 157         }
 158
 159         HgwStartCommand cmd = hgw_context_get_start_command(hgw);
 160         switch (cmd) {
 161                 default:
 162                 case HGW_COMM_NONE:     // called from libosso
 163                 case HGW_COMM_CONT:
 164                         Config.snapshotLoad = true;
 165                         Config.snapshotSave = true;
 166                         break;
 167                 case HGW_COMM_RESTART:
 168                         Config.snapshotLoad = false;
 169                         Config.snapshotSave = true;
 170                         break;
 171                 case HGW_COMM_QUIT:
 172                         // hum, what?
 173                         Config.snapshotLoad = false;
 174                         Config.snapshotSave = false;
 175                         Config.quitting = true;
 176                         break;
 177         }
 178 }
 179
 180 void HgwPollEvents()
 181 {
 182         if (!hgwLaunched) return;
 183
 184         HgwMessage msg;
 185         HgwMessageFlags flags = HGW_MSG_FLAG_NONE;
 186
 187         if ( hgw_msg_check_incoming(hgw, &msg, flags) == HGW_ERR_COMMUNICATION ) {
 188                 // Message Incoming, process msg
 189
 190                 switch (msg.type) {
 191                         case HGW_MSG_TYPE_CBREQ:
 192                                 switch (msg.e_val) {
 193                                         case HGW_CB_QUIT:
 194                                         case HGW_CB_EXIT:
 195                                                 Config.quitting = true;
 196                                                 break;
 197                                 }
 198                                 break;
 199                         case HGW_MSG_TYPE_DEVSTATE:
 200                                 switch (msg.e_val) {
 201                                         case HGW_DEVICE_STATE_SHUTDOWN:
 202                                                 Config.quitting = true; // try to quit gracefully
 203                                                 break;
 204                                 }
 205                                 break;
 206                         default:
 207                                 // do nothing
 208                                 break;
 209                 }
 210
 211                 hgw_msg_free_data(&msg);
 212         }
 213 }
 214
 215 // For now, please keep this in sync with ../gui/controls.c
 216 typedef struct ButtonEntry {
 217         char * gconf_key;
 218         unsigned long mask;
 219         bool is_action;
 220 } ButtonEntry;
 221 #define BUTTON_INITIALIZER(button, name) \
 222         { kGConfKeysPath "/" name, SNES_##button##_MASK, false }
 223 #define ACTION_INITIALIZER(action, name) \
 224         { kGConfKeysPath "/" name, kAction##action, true }
 225 #define BUTTON_LAST     \
 226         { 0 }
 227 static const ButtonEntry buttons[] = {
 228         BUTTON_INITIALIZER(A, "a"),
 229         BUTTON_INITIALIZER(B, "b"),
 230         BUTTON_INITIALIZER(X, "x"),
 231         BUTTON_INITIALIZER(Y, "y"),
 232         BUTTON_INITIALIZER(TL, "l"),
 233         BUTTON_INITIALIZER(TR, "r"),
 234         BUTTON_INITIALIZER(START, "start"),
 235         BUTTON_INITIALIZER(SELECT, "select"),
 236         BUTTON_INITIALIZER(UP, "up"),
 237         BUTTON_INITIALIZER(DOWN, "down"),
 238         BUTTON_INITIALIZER(LEFT, "left"),
 239         BUTTON_INITIALIZER(RIGHT, "right"),
 240         ACTION_INITIALIZER(Quit, "quit"),
 241         ACTION_INITIALIZER(ToggleFullscreen, "fullscreen"),
 242         ACTION_INITIALIZER(QuickLoad1, "quickload1"),
 243         ACTION_INITIALIZER(QuickSave1, "quicksave1"),
 244         ACTION_INITIALIZER(QuickLoad2, "quickload2"),
 245         ACTION_INITIALIZER(QuickSave2, "quicksave2"),
 246         BUTTON_LAST
 247 };
 248
 249 static void createActionMappingsOnly()
 250 {
 251         // Discard any other mapping
 252         ZeroMemory(Config.joypad1Mapping, sizeof(Config.joypad1Mapping));
 253         ZeroMemory(Config.action, sizeof(Config.action));
 254
 255         // Map quit to fullscreen, escape and task switch.
 256         Config.action[72] = kActionQuit;
 257         Config.action[9] = kActionQuit;
 258         Config.action[71] = kActionQuit;
 259 }
 260
 261 static void parseGConfKeyMappings()
 262 {
 263         // Discard any other mapping
 264         ZeroMemory(Config.joypad1Mapping, sizeof(Config.joypad1Mapping));
 265         ZeroMemory(Config.action, sizeof(Config.action));
 266
 267         // If the user does not map fullscreen or quit
 268         bool quit_mapped = false;
 269
 270         printf("Hgw: Using gconf key mappings\n");
 271
 272         int i, scancode;
 273         for (i = 0; buttons[i].gconf_key; i++) {
 274                 if (hgw_conf_request_int(hgw, buttons[i].gconf_key, &scancode) == HGW_ERR_NONE) {
 275                         if (scancode <= 0 || scancode > 255) continue;
 276
 277                         if (buttons[i].is_action) {
 278                                 Config.action[scancode] |= buttons[i].mask;
 279                                 if (buttons[i].mask & (kActionQuit | kActionToggleFullscreen)) {
 280                                         quit_mapped = true;
 281                                 }
 282                         } else {
 283                                 Config.joypad1Mapping[scancode] |= buttons[i].mask;
 284                         }
 285                 }
 286         }
 287
 288         // Safeguards
 289         if (!quit_mapped) {
 290                 // Newbie user won't know how to quit game.
 291                 if (!Config.joypad1Mapping[72] && !Config.action[72]) {
 292                         // Fullscreen key is not mapped, map
 293                         Config.action[72] = kActionQuit;
 294                         quit_mapped = true;
 295                 }
 296                 if (!quit_mapped && !Config.joypad1Mapping[9] && !Config.action[9]) {
 297                         // Escape key is not mapped, map
 298                         // But only if we couldn't map quit to fullscreen. Some people
 299                         // actually want Quit not to be mapped.
 300                         Config.action[9] = kActionQuit;
 301                         quit_mapped = true;
 302                 }
 303                 if (!quit_mapped) {
 304                         // Force mapping of fullscreen to Quit if can't map anywhere else.
 305                         Config.joypad1Mapping[72] = 0;
 306                         Config.action[72] = kActionQuit;
 307                 }
 308         }
 309
 310         // If task switch key is not mapped, map it to Quit by default.
 311         if (!Config.action[71] && !Config.joypad1Mapping[71]) {
 312                 Config.action[71] = kActionQuit;
 313         }
 314 }
 315