nanocoat/frontend/libretro/boot.c

   1 /* -*- Mode: C; indent-tabs-mode: t; tab-width: 4 -*-
   2 // ---------------------------------------------------------------------------
   3 // SquirrelJME
   4 //     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
   5 // ---------------------------------------------------------------------------
   6 // SquirrelJME is under the Mozilla Public License Version 2.0.
   7 // See license.mkd for licensing and copyright information.
   8 // -------------------------------------------------------------------------*/
   9
  10 #include <string.h>
  11
  12 #include "sjme/nvm/nvm.h"
  13 #include "sjme/debug.h"
  14 #include "3rdparty/libretro/libretro.h"
  15 #include "frontend/libretro/shared.h"
  16 #include "sjme/dylib.h"
  17
  18 static sjme_jboolean sjme_libretro_debugMessageHandler(sjme_lpcstr fullMessage,
  19         sjme_lpcstr partMessage)
  20 {
  21         struct retro_message retroMessage;
  22         struct retro_log_callback retroLogCallback;
  23
  24         if (sjme_libretro_envCallback != NULL)
  25         {
  26                 /* Setup details. */
  27                 retroMessage.frames = 240;
  28                 retroMessage.msg = partMessage;
  29
  30                 /* Emit message. */
  31                 sjme_libretro_envCallback(RETRO_ENVIRONMENT_SET_MESSAGE,
  32                         &retroMessage);
  33
  34                 /* Is logging also available? */
  35                 memset(&retroLogCallback, 0, sizeof(retroLogCallback));
  36                 if (true == sjme_libretro_envCallback(
  37                         RETRO_ENVIRONMENT_GET_LOG_INTERFACE,
  38                                 &retroLogCallback) &&
  39                         retroLogCallback.log != NULL)
  40                         retroLogCallback.log(RETRO_LOG_INFO, "%s\n",
  41                         fullMessage);
  42
  43                 /* We handled it here, so SquirrelJME does not have to print it. */
  44                 return SJME_JNI_TRUE;
  45         }
  46
  47         /* Not handled. */
  48         return SJME_JNI_FALSE;
  49 }
  50
  51 static sjme_jboolean sjme_libretro_exitHandler(int exitCode)
  52 {
  53         /* If there is no environment callback, then do nothing here. */
  54         if (sjme_libretro_envCallback == NULL)
  55                 return SJME_JNI_FALSE;
  56
  57         /* Tell the front end to stop the core. */
  58         sjme_libretro_envCallback(RETRO_ENVIRONMENT_SHUTDOWN, NULL);
  59         return SJME_JNI_TRUE;
  60 }
  61
  62 static sjme_jboolean sjme_libretro_abortHandler(void)
  63 {
  64         /* Forward to the exit handler. */
  65         return sjme_libretro_exitHandler(1);
  66 }
  67
  68 static sjme_debug_handlerFunctions sjme_libretro_debugHandlers =
  69 {
  70         .abort = sjme_libretro_abortHandler,
  71         .exit = sjme_libretro_exitHandler,
  72         .message = sjme_libretro_debugMessageHandler,
  73 };
  74
  75 sjme_attrUnused RETRO_API unsigned retro_api_version(void)
  76 {
  77         return RETRO_API_VERSION;
  78 }
  79
  80 sjme_attrUnused RETRO_API void retro_deinit(void)
  81 {
  82 }
  83
  84 sjme_attrUnused RETRO_API void retro_init(void)
  85 {
  86         /* Setup handlers for debug calls. */
  87         sjme_debug_handlers = &sjme_libretro_debugHandlers;
  88 }
  89
  90 sjme_attrUnused RETRO_API bool retro_load_game(
  91         const struct retro_game_info* game)
  92 {
  93         static sjme_jint trigger;
  94
  95         /* If we requested no game then we do not really care, do we? */
  96         if (game == NULL)
  97                 return true;
  98
  99         if (!(trigger++))
 100                 sjme_message("Impl. %s?", __func__);
 101
 102         return false;
 103 }
 104
 105 sjme_attrUnused RETRO_API bool retro_load_game_special(unsigned game_type,
 106         const struct retro_game_info *info, size_t num_info)
 107 {
 108         static sjme_jint trigger;
 109         if (!(trigger++))
 110                 sjme_message("Impl. %s?", __func__);
 111         return false;
 112 }
 113
 114 sjme_attrUnused RETRO_API void retro_reset(void)
 115 {
 116         static sjme_jint trigger;
 117         if (!(trigger++))
 118                 sjme_message("Impl. %s?", __func__);
 119 }
 120
 121 sjme_attrUnused RETRO_API void retro_unload_game(void)
 122 {
 123         static sjme_jint trigger;
 124         if (!(trigger++))
 125                 sjme_message("Impl. %s?", __func__);
 126 }
 127