nkeynes@1239: /**
nkeynes@1239:  * $Id$
nkeynes@1239:  *
nkeynes@1245:  * Native shims for the Android front-end (implemented in Java).
nkeynes@1245:  *
nkeynes@1245:  * This is complicated by the fact that all the emulation runs in a
nkeynes@1245:  * separate thread.
nkeynes@1239:  *
nkeynes@1239:  * Copyright (c) 2012 Nathan Keynes.
nkeynes@1239:  *
nkeynes@1239:  * This program is free software; you can redistribute it and/or modify
nkeynes@1239:  * it under the terms of the GNU General Public License as published by
nkeynes@1239:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@1239:  * (at your option) any later version.
nkeynes@1239:  *
nkeynes@1239:  * This program is distributed in the hope that it will be useful,
nkeynes@1239:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@1239:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@1239:  * GNU General Public License for more details.
nkeynes@1239:  */
nkeynes@1239: 
nkeynes@1239: #include <jni.h>
nkeynes@1245: #include <pthread.h>
nkeynes@1239: #include <android/log.h>
nkeynes@1245: #include <android/native_window_jni.h>
nkeynes@1239: #include <libisofs.h>
nkeynes@1245: #include "dream.h"
nkeynes@1239: #include "dreamcast.h"
nkeynes@1239: #include "gui.h"
nkeynes@1239: #include "config.h"
nkeynes@1241: #include "lxpaths.h"
nkeynes@1245: #include "tqueue.h"
nkeynes@1239: #include "display.h"
nkeynes@1239: #include "gdlist.h"
nkeynes@1245: #include "gdrom/gdrom.h"
nkeynes@1239: #include "hotkeys.h"
nkeynes@1239: #include "serial.h"
nkeynes@1239: #include "aica/audio.h"
nkeynes@1245: #include "drivers/video_egl.h"
nkeynes@1239: #include "maple/maple.h"
nkeynes@1239: #include "vmu/vmulist.h"
nkeynes@1239: 
nkeynes@1245: struct surface_info {
nkeynes@1245:     ANativeWindow *win;
nkeynes@1245:     int width, height, format;
nkeynes@1245: };
nkeynes@1245: 
nkeynes@1275: static struct surface_info current_surface = { NULL, 0, 0, 0 };
nkeynes@1245: static const char *appHome = NULL;
nkeynes@1245: 
nkeynes@1245: /**
nkeynes@1245:  * Count of running nanoseconds - used to cut back on the GUI runtime
nkeynes@1245:  */
nkeynes@1245: static uint32_t android_gui_nanos = 0;
nkeynes@1245: static uint32_t android_gui_ticks = 0;
nkeynes@1245: static struct timeval android_gui_lasttv;
nkeynes@1245: 
nkeynes@1245: 
nkeynes@1245: void android_gui_start( void )
nkeynes@1239: {
nkeynes@1245:     /* Dreamcast starting up hook */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void android_gui_stop( void )
nkeynes@1245: {
nkeynes@1245:     /* Dreamcast stopping hook */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void android_gui_reset( void )
nkeynes@1245: {
nkeynes@1245:     /* Dreamcast reset hook */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: /**
nkeynes@1245:  * The main emulation thread. (as opposed to the UI thread).
nkeynes@1245:  */
nkeynes@1245: void *android_thread_main(void *data)
nkeynes@1245: {
nkeynes@1245:     while(1) {
nkeynes@1245:         tqueue_process_wait();
nkeynes@1245:     }
nkeynes@1245:     return NULL;
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: int android_set_surface(void *data)
nkeynes@1245: {
nkeynes@1245:     struct surface_info *surface = (struct surface_info *)data;
nkeynes@1245:     video_egl_set_window(surface->win, surface->width, surface->height, surface->format);
nkeynes@1277:     INFO( "set_surface" );
nkeynes@1245:     return 0;
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1275: int android_do_pause(void *data)
nkeynes@1275: {
nkeynes@1275:     if( dreamcast_is_running() ) {
nkeynes@1275:         dreamcast_stop();
nkeynes@1275:     }
nkeynes@1275:     INFO( "Paused" );
nkeynes@1275:     return 0;
nkeynes@1275: }
nkeynes@1275: 
nkeynes@1275: int android_do_resume(void *data)
nkeynes@1275: {
nkeynes@1275:     INFO( "Resumed" );
nkeynes@1275:     return 0;
nkeynes@1275: }
nkeynes@1275: 
nkeynes@1245: int android_clear_surface(void *data)
nkeynes@1245: {
nkeynes@1245:     struct surface_info *surface = (struct surface_info *)data;
nkeynes@1245: 
nkeynes@1277:     if( dreamcast_is_running() ) {
nkeynes@1277:         dreamcast_stop(); /* Should already be stopped, but just in case */
nkeynes@1277:     }
nkeynes@1277:     video_egl_clear_window();
nkeynes@1245:     ANativeWindow_release(surface->win);
nkeynes@1245:     surface->win = NULL;
nkeynes@1277:     INFO( "clear_surface" );
nkeynes@1245:     return 0;
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: static pthread_t dreamcast_thread;
nkeynes@1245: 
nkeynes@1245: void android_start_thread()
nkeynes@1245: {
nkeynes@1245:     pthread_attr_t attr;
nkeynes@1245: 
nkeynes@1245:     pthread_attr_init(&attr);
nkeynes@1245:     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
nkeynes@1245:     int status = pthread_create(&dreamcast_thread, &attr, android_thread_main, NULL);
nkeynes@1245:     if( status != 0 ) {
nkeynes@1245:         /* Handle errors */
nkeynes@1245:     }
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: /** tqueue callback wrapper to get the right call type for simple events */
nkeynes@1245: int android_callback_wrapper( void *fn )
nkeynes@1245: {
nkeynes@1245:     void (*cast_fn)(void) = fn;
nkeynes@1245:     cast_fn();
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: int android_mount_disc( void *data )
nkeynes@1245: {
nkeynes@1245:     char *s = (char *)data;
nkeynes@1245:     ERROR err;
nkeynes@1245:     gboolean result = gdrom_mount_image( s, &err ); /* TODO: Report error */
nkeynes@1241:     return result;
nkeynes@1241: }
nkeynes@1241: 
nkeynes@1245: int android_toggle_run( void *data )
nkeynes@1245: {
nkeynes@1245:     if( dreamcast_is_running() ) {
nkeynes@1245:         dreamcast_stop();
nkeynes@1245:     } else {
nkeynes@1245:         dreamcast_run();
nkeynes@1245:     }
nkeynes@1245: }
nkeynes@1241: 
nkeynes@1245: uint32_t android_gui_run_slice( uint32_t nanosecs )
nkeynes@1241: {
nkeynes@1245:     android_gui_nanos += nanosecs;
nkeynes@1245:     if( android_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */
nkeynes@1245:         android_gui_nanos -= GUI_TICK_PERIOD;
nkeynes@1245:         android_gui_ticks ++;
nkeynes@1245:         uint32_t current_period = android_gui_ticks * GUI_TICK_PERIOD;
nkeynes@1245: 
nkeynes@1245:         // Run the event loop
nkeynes@1245:         tqueue_process_all();
nkeynes@1245: 
nkeynes@1245:         struct timeval tv;
nkeynes@1245:         gettimeofday(&tv,NULL);
nkeynes@1245:         uint32_t ns = ((tv.tv_sec - android_gui_lasttv.tv_sec) * 1000000000) +
nkeynes@1245:         (tv.tv_usec - android_gui_lasttv.tv_usec)*1000;
nkeynes@1245:         if( (ns * 1.05) < current_period ) {
nkeynes@1245:             // We've gotten ahead - sleep for a little bit
nkeynes@1245:             struct timespec tv;
nkeynes@1245:             tv.tv_sec = 0;
nkeynes@1245:             tv.tv_nsec = current_period - ns;
nkeynes@1245:             nanosleep(&tv, &tv);
nkeynes@1245:         }
nkeynes@1245: 
nkeynes@1245: #if 0
nkeynes@1245:         /* Update the display every 10 ticks (ie 10 times a second) and
nkeynes@1245:          * save the current tv value */
nkeynes@1245:         if( android_gui_ticks > 10 ) {
nkeynes@1245:             android_gui_ticks -= 10;
nkeynes@1245: 
nkeynes@1245:             double speed = (float)( (double)current_period * 100.0 / ns );
nkeynes@1245:             android_gui_lasttv.tv_sec = tv.tv_sec;
nkeynes@1245:             android_gui_lasttv.tv_usec = tv.tv_usec;
nkeynes@1245:             main_window_set_speed( main_win, speed );
nkeynes@1245:         }
nkeynes@1245: #endif
nkeynes@1245:     }
nkeynes@1245:     return nanosecs;
nkeynes@1245: 
nkeynes@1245: 
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: struct dreamcast_module android_gui_module = { "gui", NULL,
nkeynes@1245:         android_gui_reset,
nkeynes@1245:         android_gui_start,
nkeynes@1245:         android_gui_run_slice,
nkeynes@1245:         android_gui_stop,
nkeynes@1245:         NULL, NULL };
nkeynes@1245: 
nkeynes@1245: gboolean gui_error_dialog( const char *fmt, ... )
nkeynes@1245: {
nkeynes@1245:     return FALSE; /* TODO */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void gui_update_state()
nkeynes@1245: {
nkeynes@1245:     /* TODO */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void gui_set_use_grab( gboolean grab )
nkeynes@1245: {
nkeynes@1245:     /* No implementation - mouse grab doesn't exist */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void gui_update_io_activity( io_activity_type activity, gboolean active )
nkeynes@1245: {
nkeynes@1245:     /* No implementation */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: void gui_do_later( do_later_callback_t func )
nkeynes@1245: {
nkeynes@1245:     func(); /* TODO */
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: static void android_init( const char *appHomeDir )
nkeynes@1245: {
nkeynes@1245:     set_global_log_level("info");
nkeynes@1245:     appHome = appHomeDir;
nkeynes@1241:     const char *confFile = g_strdup_printf("%s/lxdreamrc", appHome);
nkeynes@1241:     set_user_data_path(appHome);
nkeynes@1241:     lxdream_set_config_filename( confFile );
nkeynes@1239:     lxdream_make_config_dir( );
nkeynes@1239:     lxdream_load_config( );
nkeynes@1239:     iso_init();
nkeynes@1239:     gdrom_list_init();
nkeynes@1239:     vmulist_init();
nkeynes@1239:     dreamcast_init(1);
nkeynes@1239: 
nkeynes@1245:     dreamcast_register_module( &android_gui_module );
nkeynes@1239:     audio_init_driver(NULL);
nkeynes@1239:     display_driver_t display_driver = get_display_driver_by_name(NULL);
nkeynes@1239:     display_set_driver(display_driver);
nkeynes@1239: 
nkeynes@1239:     hotkeys_init();
nkeynes@1239:     serial_init();
nkeynes@1239:     maple_reattach_all();
nkeynes@1253: 
nkeynes@1253:     ERROR err;
nkeynes@1253:     gchar *disc_file = lxdream_get_global_config_path_value( CONFIG_GDROM );
nkeynes@1253:     if( disc_file != NULL ) {
nkeynes@1253:         gboolean ok = gdrom_mount_image( disc_file, &err );
nkeynes@1253:         g_free(disc_file);
nkeynes@1253:         if( !ok ) {
nkeynes@1253:             WARN( err.msg );
nkeynes@1253:         } else {
nkeynes@1253:             INFO( "Mounted %s", disc_file );
nkeynes@1253:         }
nkeynes@1253:     }
nkeynes@1253: 
nkeynes@1239:     INFO( "%s! ready...", APP_NAME );
nkeynes@1245:     android_start_thread();
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: 
nkeynes@1245: /************************* Dreamcast native entry points **************************/
nkeynes@1245: 
nkeynes@1245: static char *getStringChars( JNIEnv *env, jstring str );
nkeynes@1245: 
nkeynes@1245: /**
nkeynes@1245:  * Main initialization entry point. We need to do all the setup that main()
nkeynes@1245:  * would normally do, as well as any UI specific setup.
nkeynes@1245:  */
nkeynes@1245: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_init(JNIEnv * env, jclass obj,  jstring homeDir )
nkeynes@1239: {
nkeynes@1245:     android_init( getStringChars(env, homeDir) );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1241: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_run(JNIEnv * env, jclass obj)
nkeynes@1239: {
nkeynes@1245:     tqueue_post_message( android_callback_wrapper, dreamcast_run );
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_toggleRun(JNIEnv * env, jclass obj)
nkeynes@1245: {
nkeynes@1245:     tqueue_post_message( android_toggle_run, NULL );
nkeynes@1245: }
nkeynes@1245: 
nkeynes@1245: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_reset(JNIEnv * env, jclass obj)
nkeynes@1245: {
nkeynes@1245:     tqueue_post_message( android_callback_wrapper, dreamcast_reset );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1241: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_stop(JNIEnv * env, jclass obj)
nkeynes@1239: {
nkeynes@1245:     /* Need to make sure this completely shuts down before we return */
nkeynes@1245:     tqueue_send_message( android_callback_wrapper, dreamcast_stop );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1275: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_onAppPause(JNIEnv * env, jclass obj)
nkeynes@1275: {
nkeynes@1275:     /* Need to make sure this completely shuts down before we return */
nkeynes@1275:     tqueue_send_message( android_do_pause, &current_surface );
nkeynes@1275: }
nkeynes@1275: 
nkeynes@1275: JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_onAppResume(JNIEnv * env, jclass obj)
nkeynes@1275: {
nkeynes@1275:     tqueue_post_message( android_do_resume, &current_surface );
nkeynes@1275: }
nkeynes@1275: 
nkeynes@1245: JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunning(JNIEnv *env, jclass obj)
nkeynes@1239: {
nkeynes@1245:     return dreamcast_is_running();
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunnable(JNIEnv *env, jclass obj)
nkeynes@1239: {
nkeynes@1245:     return dreamcast_can_run();
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_mount(JNIEnv *env, jclass obj, jstring str)
nkeynes@1245: {
nkeynes@1245:     char *s = getStringChars(env, str);
nkeynes@1245:     return tqueue_send_message( android_mount_disc, s );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_unmount(JNIEnv *env, jclass obj)
nkeynes@1239: {
nkeynes@1245:     tqueue_post_message( android_callback_wrapper, gdrom_unmount_disc );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: 
nkeynes@1245: /************************* LxdreamView native entry points **************************/
nkeynes@1245: 
nkeynes@1245: JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_setSurface(JNIEnv * env, jobject view, jobject surface, jint width, jint height)
nkeynes@1239: {
nkeynes@1245:     current_surface.win = ANativeWindow_fromSurface(env, surface);
nkeynes@1245:     current_surface.width = width;
nkeynes@1245:     current_surface.height = height;
nkeynes@1245:     int fmt = ANativeWindow_getFormat(current_surface.win);
nkeynes@1245:     if( fmt == WINDOW_FORMAT_RGB_565 ) {
nkeynes@1245:         current_surface.format = COLFMT_RGB565;
nkeynes@1245:     } else {
nkeynes@1245:         current_surface.format = COLFMT_RGB888;
nkeynes@1245:     }
nkeynes@1275:     INFO( "Setting surface" );
nkeynes@1245:     tqueue_post_message( android_set_surface, &current_surface );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_clearSurface(JNIEnv * env, jobject view, jobject surface)
nkeynes@1239: {
nkeynes@1245:     /* Need to make sure this completely shuts down before we return */
nkeynes@1245:     tqueue_send_message( android_clear_surface, &current_surface );
nkeynes@1239: }
nkeynes@1239: 
nkeynes@1245: 
nkeynes@1245: /************************* JNI Support functions **************************/
nkeynes@1245: 
nkeynes@1245: static char *getStringChars( JNIEnv *env, jstring str )
nkeynes@1239: {
nkeynes@1245:     jboolean iscopy;
nkeynes@1245:     const char *p = (*env)->GetStringUTFChars(env, str, &iscopy);
nkeynes@1245:     char *result = strdup(p);
nkeynes@1245:     (*env)->ReleaseStringUTFChars(env,str,p);
nkeynes@1245:     return result;
nkeynes@1239: }