4 * Native shims for the Android front-end (implemented in Java).
6 * This is complicated by the fact that all the emulation runs in a
9 * Copyright (c) 2012 Nathan Keynes.
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.
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.
24 #include <android/log.h>
25 #include <android/native_window_jni.h>
28 #include "dreamcast.h"
35 #include "gdrom/gdrom.h"
38 #include "aica/audio.h"
39 #include "drivers/video_egl.h"
40 #include "maple/maple.h"
41 #include "vmu/vmulist.h"
45 int width, height, format;
48 static struct surface_info current_surface;
49 static const char *appHome = NULL;
52 * Count of running nanoseconds - used to cut back on the GUI runtime
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 )
61 /* Dreamcast starting up hook */
64 void android_gui_stop( void )
66 /* Dreamcast stopping hook */
69 void android_gui_reset( void )
71 /* Dreamcast reset hook */
75 * The main emulation thread. (as opposed to the UI thread).
77 void *android_thread_main(void *data)
80 tqueue_process_wait();
85 int android_set_surface(void *data)
87 struct surface_info *surface = (struct surface_info *)data;
88 video_egl_set_window(surface->win, surface->width, surface->height, surface->format);
92 int android_clear_surface(void *data)
94 struct surface_info *surface = (struct surface_info *)data;
96 if( dreamcast_is_running() ) {
99 video_egl_clear_window();
100 ANativeWindow_release(surface->win);
105 static pthread_t dreamcast_thread;
107 void android_start_thread()
111 pthread_attr_init(&attr);
112 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
113 int status = pthread_create(&dreamcast_thread, &attr, android_thread_main, NULL);
119 /** tqueue callback wrapper to get the right call type for simple events */
120 int android_callback_wrapper( void *fn )
122 void (*cast_fn)(void) = fn;
126 int android_mount_disc( void *data )
128 char *s = (char *)data;
130 gboolean result = gdrom_mount_image( s, &err ); /* TODO: Report error */
134 int android_toggle_run( void *data )
136 if( dreamcast_is_running() ) {
143 uint32_t android_gui_run_slice( uint32_t nanosecs )
145 android_gui_nanos += nanosecs;
146 if( android_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */
147 android_gui_nanos -= GUI_TICK_PERIOD;
148 android_gui_ticks ++;
149 uint32_t current_period = android_gui_ticks * GUI_TICK_PERIOD;
151 // Run the event loop
152 tqueue_process_all();
155 gettimeofday(&tv,NULL);
156 uint32_t ns = ((tv.tv_sec - android_gui_lasttv.tv_sec) * 1000000000) +
157 (tv.tv_usec - android_gui_lasttv.tv_usec)*1000;
158 if( (ns * 1.05) < current_period ) {
159 // We've gotten ahead - sleep for a little bit
162 tv.tv_nsec = current_period - ns;
167 /* Update the display every 10 ticks (ie 10 times a second) and
168 * save the current tv value */
169 if( android_gui_ticks > 10 ) {
170 android_gui_ticks -= 10;
172 double speed = (float)( (double)current_period * 100.0 / ns );
173 android_gui_lasttv.tv_sec = tv.tv_sec;
174 android_gui_lasttv.tv_usec = tv.tv_usec;
175 main_window_set_speed( main_win, speed );
184 struct dreamcast_module android_gui_module = { "gui", NULL,
187 android_gui_run_slice,
191 gboolean gui_error_dialog( const char *fmt, ... )
193 return FALSE; /* TODO */
196 void gui_update_state()
201 void gui_set_use_grab( gboolean grab )
203 /* No implementation - mouse grab doesn't exist */
206 void gui_update_io_activity( io_activity_type activity, gboolean active )
208 /* No implementation */
211 void gui_do_later( do_later_callback_t func )
216 static void android_init( const char *appHomeDir )
218 set_global_log_level("info");
219 appHome = appHomeDir;
220 const char *confFile = g_strdup_printf("%s/lxdreamrc", appHome);
221 set_user_data_path(appHome);
222 lxdream_set_config_filename( confFile );
223 lxdream_make_config_dir( );
224 lxdream_load_config( );
230 dreamcast_register_module( &android_gui_module );
231 audio_init_driver(NULL);
232 display_driver_t display_driver = get_display_driver_by_name(NULL);
233 display_set_driver(display_driver);
237 maple_reattach_all();
240 gchar *disc_file = lxdream_get_global_config_path_value( CONFIG_GDROM );
241 if( disc_file != NULL ) {
242 gboolean ok = gdrom_mount_image( disc_file, &err );
247 INFO( "Mounted %s", disc_file );
251 INFO( "%s! ready...", APP_NAME );
252 android_start_thread();
256 /************************* Dreamcast native entry points **************************/
258 static char *getStringChars( JNIEnv *env, jstring str );
261 * Main initialization entry point. We need to do all the setup that main()
262 * would normally do, as well as any UI specific setup.
264 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_init(JNIEnv * env, jclass obj, jstring homeDir )
266 android_init( getStringChars(env, homeDir) );
269 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_run(JNIEnv * env, jclass obj)
271 tqueue_post_message( android_callback_wrapper, dreamcast_run );
274 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_toggleRun(JNIEnv * env, jclass obj)
276 tqueue_post_message( android_toggle_run, NULL );
279 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_reset(JNIEnv * env, jclass obj)
281 tqueue_post_message( android_callback_wrapper, dreamcast_reset );
284 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_stop(JNIEnv * env, jclass obj)
286 /* Need to make sure this completely shuts down before we return */
287 tqueue_send_message( android_callback_wrapper, dreamcast_stop );
290 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunning(JNIEnv *env, jclass obj)
292 return dreamcast_is_running();
295 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunnable(JNIEnv *env, jclass obj)
297 return dreamcast_can_run();
300 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_mount(JNIEnv *env, jclass obj, jstring str)
302 char *s = getStringChars(env, str);
303 return tqueue_send_message( android_mount_disc, s );
306 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_unmount(JNIEnv *env, jclass obj)
308 tqueue_post_message( android_callback_wrapper, gdrom_unmount_disc );
312 /************************* LxdreamView native entry points **************************/
314 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_setSurface(JNIEnv * env, jobject view, jobject surface, jint width, jint height)
316 current_surface.win = ANativeWindow_fromSurface(env, surface);
317 current_surface.width = width;
318 current_surface.height = height;
319 int fmt = ANativeWindow_getFormat(current_surface.win);
320 if( fmt == WINDOW_FORMAT_RGB_565 ) {
321 current_surface.format = COLFMT_RGB565;
323 current_surface.format = COLFMT_RGB888;
325 tqueue_post_message( android_set_surface, ¤t_surface );
328 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_clearSurface(JNIEnv * env, jobject view, jobject surface)
330 /* Need to make sure this completely shuts down before we return */
331 tqueue_send_message( android_clear_surface, ¤t_surface );
335 /************************* JNI Support functions **************************/
337 static char *getStringChars( JNIEnv *env, jstring str )
340 const char *p = (*env)->GetStringUTFChars(env, str, &iscopy);
341 char *result = strdup(p);
342 (*env)->ReleaseStringUTFChars(env,str,p);
.