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"
42 #include "pvr2/pvr2.h"
46 int width, height, format;
49 static struct surface_info current_surface = { NULL, 0, 0, 0 };
50 static const char *appHome = NULL;
53 * Count of running nanoseconds - used to cut back on the GUI runtime
55 static uint32_t android_gui_nanos = 0;
56 static uint32_t android_gui_ticks = 0;
57 static struct timeval android_gui_lasttv;
60 void android_gui_start( void )
62 /* Dreamcast starting up hook */
65 void android_gui_stop( void )
67 /* Dreamcast stopping hook */
70 void android_gui_reset( void )
72 /* Dreamcast reset hook */
76 * The main emulation thread. (as opposed to the UI thread).
78 void *android_thread_main(void *data)
81 tqueue_process_wait();
86 int android_set_surface(void *data)
88 struct surface_info *surface = (struct surface_info *)data;
89 video_egl_set_window(surface->win, surface->width, surface->height, surface->format);
90 pvr2_restore_render_buffers();
92 INFO( "set_surface" );
96 int android_clear_surface(void *data)
98 struct surface_info *surface = (struct surface_info *)data;
100 if( dreamcast_is_running() ) {
101 dreamcast_stop(); /* Should already be stopped, but just in case */
103 pvr2_preserve_render_buffers();
104 video_egl_clear_window();
105 ANativeWindow_release(surface->win);
107 INFO( "clear_surface" );
111 static pthread_t dreamcast_thread;
113 void android_start_thread()
117 pthread_attr_init(&attr);
118 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
119 pthread_attr_setstacksize(&attr,2048*1024);
120 int status = pthread_create(&dreamcast_thread, &attr, android_thread_main, NULL);
126 /** tqueue callback wrapper to get the right call type for simple events */
127 int android_callback_wrapper( void *fn )
129 void (*cast_fn)(void) = fn;
133 int android_mount_disc( void *data )
135 char *s = (char *)data;
137 gboolean result = gdrom_mount_image( s, &err ); /* TODO: Report error */
141 int android_toggle_run( void *data )
143 if( dreamcast_is_running() ) {
150 uint32_t android_gui_run_slice( uint32_t nanosecs )
152 android_gui_nanos += nanosecs;
153 if( android_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */
154 android_gui_nanos -= GUI_TICK_PERIOD;
155 android_gui_ticks ++;
156 uint32_t current_period = android_gui_ticks * GUI_TICK_PERIOD;
158 // Run the event loop
159 tqueue_process_all();
162 gettimeofday(&tv,NULL);
163 uint32_t ns = ((tv.tv_sec - android_gui_lasttv.tv_sec) * 1000000000) +
164 (tv.tv_usec - android_gui_lasttv.tv_usec)*1000;
165 if( (ns * 1.05) < current_period ) {
166 // We've gotten ahead - sleep for a little bit
169 tv.tv_nsec = current_period - ns;
174 /* Update the display every 10 ticks (ie 10 times a second) and
175 * save the current tv value */
176 if( android_gui_ticks > 10 ) {
177 android_gui_ticks -= 10;
179 double speed = (float)( (double)current_period * 100.0 / ns );
180 android_gui_lasttv.tv_sec = tv.tv_sec;
181 android_gui_lasttv.tv_usec = tv.tv_usec;
182 main_window_set_speed( main_win, speed );
191 struct dreamcast_module android_gui_module = { "gui", NULL,
194 android_gui_run_slice,
198 gboolean gui_error_dialog( const char *fmt, ... )
200 return FALSE; /* TODO */
203 void gui_update_state()
208 void gui_set_use_grab( gboolean grab )
210 /* No implementation - mouse grab doesn't exist */
213 void gui_update_io_activity( io_activity_type activity, gboolean active )
215 /* No implementation */
218 void gui_do_later( do_later_callback_t func )
223 static void android_init( const char *appHomeDir )
225 set_global_log_level("info");
226 appHome = appHomeDir;
227 const char *confFile = g_strdup_printf("%s/lxdreamrc", appHome);
228 set_user_data_path(appHome);
229 lxdream_set_config_filename( confFile );
230 lxdream_make_config_dir( );
231 lxdream_load_config( );
237 dreamcast_register_module( &android_gui_module );
238 audio_init_driver(NULL);
239 display_driver_t display_driver = get_display_driver_by_name(NULL);
240 display_set_driver(display_driver);
244 maple_reattach_all();
247 gchar *disc_file = lxdream_get_global_config_path_value( CONFIG_GDROM );
248 if( disc_file != NULL ) {
249 gboolean ok = gdrom_mount_image( disc_file, &err );
254 INFO( "Mounted %s", disc_file );
258 INFO( "%s! ready...", APP_NAME );
259 android_start_thread();
263 /************************* Dreamcast native entry points **************************/
265 static char *getStringChars( JNIEnv *env, jstring str );
268 * Main initialization entry point. We need to do all the setup that main()
269 * would normally do, as well as any UI specific setup.
271 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_init(JNIEnv * env, jclass obj, jstring homeDir )
273 android_init( getStringChars(env, homeDir) );
276 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_run(JNIEnv * env, jclass obj)
278 tqueue_post_message( android_callback_wrapper, dreamcast_run );
281 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_toggleRun(JNIEnv * env, jclass obj)
283 tqueue_post_message( android_toggle_run, NULL );
286 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_reset(JNIEnv * env, jclass obj)
288 tqueue_post_message( android_callback_wrapper, dreamcast_reset );
291 JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_stop(JNIEnv * env, jclass obj)
293 /* Need to make sure this completely shuts down before we return */
294 tqueue_send_message( android_callback_wrapper, dreamcast_stop );
297 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunning(JNIEnv *env, jclass obj)
299 return dreamcast_is_running();
302 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunnable(JNIEnv *env, jclass obj)
304 return dreamcast_can_run();
307 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_mount(JNIEnv *env, jclass obj, jstring str)
309 char *s = getStringChars(env, str);
310 return tqueue_send_message( android_mount_disc, s );
313 JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_unmount(JNIEnv *env, jclass obj)
315 tqueue_post_message( android_callback_wrapper, gdrom_unmount_disc );
319 /************************* LxdreamView native entry points **************************/
321 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_setSurface(JNIEnv * env, jobject view, jobject surface, jint width, jint height)
323 current_surface.win = ANativeWindow_fromSurface(env, surface);
324 current_surface.width = width;
325 current_surface.height = height;
326 int fmt = ANativeWindow_getFormat(current_surface.win);
327 if( fmt == WINDOW_FORMAT_RGB_565 ) {
328 current_surface.format = COLFMT_RGB565;
330 current_surface.format = COLFMT_RGB888;
332 INFO( "Setting surface" );
333 tqueue_post_message( android_set_surface, ¤t_surface );
336 JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_clearSurface(JNIEnv * env, jobject view, jobject surface)
338 /* Need to make sure this completely shuts down before we return */
339 tqueue_send_message( android_clear_surface, ¤t_surface );
343 /************************* JNI Support functions **************************/
345 static char *getStringChars( JNIEnv *env, jstring str )
348 const char *p = (*env)->GetStringUTFChars(env, str, &iscopy);
349 char *result = strdup(p);
350 (*env)->ReleaseStringUTFChars(env,str,p);
.