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lxdream.org :: lxdream/src/gui_android.c
lxdream 0.9.1
released Jun 29
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filename src/gui_android.c
changeset 1278:2f0de47738d0
prev1277:f727227cc4f8
next1282:9f445c5e252b
author nkeynes
date Wed Mar 21 14:44:14 2012 +1000 (10 years ago)
permissions -rw-r--r--
last change Dreamcast.stop() on pause, get rid of unnecessary onAppPause()/onAppResume() methods
Set the run menu item to the right icon/state on pause as well.
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     1 /**
     2  * $Id$
     3  *
     4  * Native shims for the Android front-end (implemented in Java).
     5  *
     6  * This is complicated by the fact that all the emulation runs in a
     7  * separate thread.
     8  *
     9  * Copyright (c) 2012 Nathan Keynes.
    10  *
    11  * This program is free software; you can redistribute it and/or modify
    12  * it under the terms of the GNU General Public License as published by
    13  * the Free Software Foundation; either version 2 of the License, or
    14  * (at your option) any later version.
    15  *
    16  * This program is distributed in the hope that it will be useful,
    17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    19  * GNU General Public License for more details.
    20  */
    22 #include <jni.h>
    23 #include <pthread.h>
    24 #include <android/log.h>
    25 #include <android/native_window_jni.h>
    26 #include <libisofs.h>
    27 #include "dream.h"
    28 #include "dreamcast.h"
    29 #include "gui.h"
    30 #include "config.h"
    31 #include "lxpaths.h"
    32 #include "tqueue.h"
    33 #include "display.h"
    34 #include "gdlist.h"
    35 #include "gdrom/gdrom.h"
    36 #include "hotkeys.h"
    37 #include "serial.h"
    38 #include "aica/audio.h"
    39 #include "drivers/video_egl.h"
    40 #include "maple/maple.h"
    41 #include "vmu/vmulist.h"
    43 struct surface_info {
    44     ANativeWindow *win;
    45     int width, height, format;
    46 };
    48 static struct surface_info current_surface = { NULL, 0, 0, 0 };
    49 static const char *appHome = NULL;
    51 /**
    52  * Count of running nanoseconds - used to cut back on the GUI runtime
    53  */
    54 static uint32_t android_gui_nanos = 0;
    55 static uint32_t android_gui_ticks = 0;
    56 static struct timeval android_gui_lasttv;
    59 void android_gui_start( void )
    60 {
    61     /* Dreamcast starting up hook */
    62 }
    64 void android_gui_stop( void )
    65 {
    66     /* Dreamcast stopping hook */
    67 }
    69 void android_gui_reset( void )
    70 {
    71     /* Dreamcast reset hook */
    72 }
    74 /**
    75  * The main emulation thread. (as opposed to the UI thread).
    76  */
    77 void *android_thread_main(void *data)
    78 {
    79     while(1) {
    80         tqueue_process_wait();
    81     }
    82     return NULL;
    83 }
    85 int android_set_surface(void *data)
    86 {
    87     struct surface_info *surface = (struct surface_info *)data;
    88     video_egl_set_window(surface->win, surface->width, surface->height, surface->format);
    89     INFO( "set_surface" );
    90     return 0;
    91 }
    93 int android_clear_surface(void *data)
    94 {
    95     struct surface_info *surface = (struct surface_info *)data;
    97     if( dreamcast_is_running() ) {
    98         dreamcast_stop(); /* Should already be stopped, but just in case */
    99     }
   100     video_egl_clear_window();
   101     ANativeWindow_release(surface->win);
   102     surface->win = NULL;
   103     INFO( "clear_surface" );
   104     return 0;
   105 }
   107 static pthread_t dreamcast_thread;
   109 void android_start_thread()
   110 {
   111     pthread_attr_t attr;
   113     pthread_attr_init(&attr);
   114     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
   115     int status = pthread_create(&dreamcast_thread, &attr, android_thread_main, NULL);
   116     if( status != 0 ) {
   117         /* Handle errors */
   118     }
   119 }
   121 /** tqueue callback wrapper to get the right call type for simple events */
   122 int android_callback_wrapper( void *fn )
   123 {
   124     void (*cast_fn)(void) = fn;
   125     cast_fn();
   126 }
   128 int android_mount_disc( void *data )
   129 {
   130     char *s = (char *)data;
   131     ERROR err;
   132     gboolean result = gdrom_mount_image( s, &err ); /* TODO: Report error */
   133     return result;
   134 }
   136 int android_toggle_run( void *data )
   137 {
   138     if( dreamcast_is_running() ) {
   139         dreamcast_stop();
   140     } else {
   141         dreamcast_run();
   142     }
   143 }
   145 uint32_t android_gui_run_slice( uint32_t nanosecs )
   146 {
   147     android_gui_nanos += nanosecs;
   148     if( android_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */
   149         android_gui_nanos -= GUI_TICK_PERIOD;
   150         android_gui_ticks ++;
   151         uint32_t current_period = android_gui_ticks * GUI_TICK_PERIOD;
   153         // Run the event loop
   154         tqueue_process_all();
   156         struct timeval tv;
   157         gettimeofday(&tv,NULL);
   158         uint32_t ns = ((tv.tv_sec - android_gui_lasttv.tv_sec) * 1000000000) +
   159         (tv.tv_usec - android_gui_lasttv.tv_usec)*1000;
   160         if( (ns * 1.05) < current_period ) {
   161             // We've gotten ahead - sleep for a little bit
   162             struct timespec tv;
   163             tv.tv_sec = 0;
   164             tv.tv_nsec = current_period - ns;
   165             nanosleep(&tv, &tv);
   166         }
   168 #if 0
   169         /* Update the display every 10 ticks (ie 10 times a second) and
   170          * save the current tv value */
   171         if( android_gui_ticks > 10 ) {
   172             android_gui_ticks -= 10;
   174             double speed = (float)( (double)current_period * 100.0 / ns );
   175             android_gui_lasttv.tv_sec = tv.tv_sec;
   176             android_gui_lasttv.tv_usec = tv.tv_usec;
   177             main_window_set_speed( main_win, speed );
   178         }
   179 #endif
   180     }
   181     return nanosecs;
   184 }
   186 struct dreamcast_module android_gui_module = { "gui", NULL,
   187         android_gui_reset,
   188         android_gui_start,
   189         android_gui_run_slice,
   190         android_gui_stop,
   191         NULL, NULL };
   193 gboolean gui_error_dialog( const char *fmt, ... )
   194 {
   195     return FALSE; /* TODO */
   196 }
   198 void gui_update_state()
   199 {
   200     /* TODO */
   201 }
   203 void gui_set_use_grab( gboolean grab )
   204 {
   205     /* No implementation - mouse grab doesn't exist */
   206 }
   208 void gui_update_io_activity( io_activity_type activity, gboolean active )
   209 {
   210     /* No implementation */
   211 }
   213 void gui_do_later( do_later_callback_t func )
   214 {
   215     func(); /* TODO */
   216 }
   218 static void android_init( const char *appHomeDir )
   219 {
   220     set_global_log_level("info");
   221     appHome = appHomeDir;
   222     const char *confFile = g_strdup_printf("%s/lxdreamrc", appHome);
   223     set_user_data_path(appHome);
   224     lxdream_set_config_filename( confFile );
   225     lxdream_make_config_dir( );
   226     lxdream_load_config( );
   227     iso_init();
   228     gdrom_list_init();
   229     vmulist_init();
   230     dreamcast_init(1);
   232     dreamcast_register_module( &android_gui_module );
   233     audio_init_driver(NULL);
   234     display_driver_t display_driver = get_display_driver_by_name(NULL);
   235     display_set_driver(display_driver);
   237     hotkeys_init();
   238     serial_init();
   239     maple_reattach_all();
   241     ERROR err;
   242     gchar *disc_file = lxdream_get_global_config_path_value( CONFIG_GDROM );
   243     if( disc_file != NULL ) {
   244         gboolean ok = gdrom_mount_image( disc_file, &err );
   245         g_free(disc_file);
   246         if( !ok ) {
   247             WARN( err.msg );
   248         } else {
   249             INFO( "Mounted %s", disc_file );
   250         }
   251     }
   253     INFO( "%s! ready...", APP_NAME );
   254     android_start_thread();
   255 }
   258 /************************* Dreamcast native entry points **************************/
   260 static char *getStringChars( JNIEnv *env, jstring str );
   262 /**
   263  * Main initialization entry point. We need to do all the setup that main()
   264  * would normally do, as well as any UI specific setup.
   265  */
   266 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_init(JNIEnv * env, jclass obj,  jstring homeDir )
   267 {
   268     android_init( getStringChars(env, homeDir) );
   269 }
   271 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_run(JNIEnv * env, jclass obj)
   272 {
   273     tqueue_post_message( android_callback_wrapper, dreamcast_run );
   274 }
   276 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_toggleRun(JNIEnv * env, jclass obj)
   277 {
   278     tqueue_post_message( android_toggle_run, NULL );
   279 }
   281 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_reset(JNIEnv * env, jclass obj)
   282 {
   283     tqueue_post_message( android_callback_wrapper, dreamcast_reset );
   284 }
   286 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_stop(JNIEnv * env, jclass obj)
   287 {
   288     /* Need to make sure this completely shuts down before we return */
   289     tqueue_send_message( android_callback_wrapper, dreamcast_stop );
   290 }
   292 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunning(JNIEnv *env, jclass obj)
   293 {
   294     return dreamcast_is_running();
   295 }
   297 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunnable(JNIEnv *env, jclass obj)
   298 {
   299     return dreamcast_can_run();
   300 }
   302 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_mount(JNIEnv *env, jclass obj, jstring str)
   303 {
   304     char *s = getStringChars(env, str);
   305     return tqueue_send_message( android_mount_disc, s );
   306 }
   308 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_unmount(JNIEnv *env, jclass obj)
   309 {
   310     tqueue_post_message( android_callback_wrapper, gdrom_unmount_disc );
   311 }
   314 /************************* LxdreamView native entry points **************************/
   316 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_setSurface(JNIEnv * env, jobject view, jobject surface, jint width, jint height)
   317 {
   318     current_surface.win = ANativeWindow_fromSurface(env, surface);
   319     current_surface.width = width;
   320     current_surface.height = height;
   321     int fmt = ANativeWindow_getFormat(current_surface.win);
   322     if( fmt == WINDOW_FORMAT_RGB_565 ) {
   323         current_surface.format = COLFMT_RGB565;
   324     } else {
   325         current_surface.format = COLFMT_RGB888;
   326     }
   327     INFO( "Setting surface" );
   328     tqueue_post_message( android_set_surface, &current_surface );
   329 }
   331 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_clearSurface(JNIEnv * env, jobject view, jobject surface)
   332 {
   333     /* Need to make sure this completely shuts down before we return */
   334     tqueue_send_message( android_clear_surface, &current_surface );
   335 }
   338 /************************* JNI Support functions **************************/
   340 static char *getStringChars( JNIEnv *env, jstring str )
   341 {
   342     jboolean iscopy;
   343     const char *p = (*env)->GetStringUTFChars(env, str, &iscopy);
   344     char *result = strdup(p);
   345     (*env)->ReleaseStringUTFChars(env,str,p);
   346     return result;
   347 }
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