1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/gui_android.c	Sat Mar 03 16:06:58 2012 +1000
     1.3 @@ -0,0 +1,331 @@
     1.4 +/**
     1.5 + * $Id$
     1.6 + *
     1.7 + * Native shims for the Android front-end (implemented in Java).
     1.8 + *
     1.9 + * This is complicated by the fact that all the emulation runs in a
    1.10 + * separate thread.
    1.11 + *
    1.12 + * Copyright (c) 2012 Nathan Keynes.
    1.13 + *
    1.14 + * This program is free software; you can redistribute it and/or modify
    1.15 + * it under the terms of the GNU General Public License as published by
    1.16 + * the Free Software Foundation; either version 2 of the License, or
    1.17 + * (at your option) any later version.
    1.18 + *
    1.19 + * This program is distributed in the hope that it will be useful,
    1.20 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.21 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.22 + * GNU General Public License for more details.
    1.23 + */
    1.24 +
    1.25 +#include <jni.h>
    1.26 +#include <pthread.h>
    1.27 +#include <android/log.h>
    1.28 +#include <android/native_window_jni.h>
    1.29 +#include <libisofs.h>
    1.30 +#include "dream.h"
    1.31 +#include "dreamcast.h"
    1.32 +#include "gui.h"
    1.33 +#include "config.h"
    1.34 +#include "lxpaths.h"
    1.35 +#include "tqueue.h"
    1.36 +#include "display.h"
    1.37 +#include "gdlist.h"
    1.38 +#include "gdrom/gdrom.h"
    1.39 +#include "hotkeys.h"
    1.40 +#include "serial.h"
    1.41 +#include "aica/audio.h"
    1.42 +#include "drivers/video_egl.h"
    1.43 +#include "maple/maple.h"
    1.44 +#include "vmu/vmulist.h"
    1.45 +
    1.46 +struct surface_info {
    1.47 +    ANativeWindow *win;
    1.48 +    int width, height, format;
    1.49 +};
    1.50 +
    1.51 +static struct surface_info current_surface;
    1.52 +static const char *appHome = NULL;
    1.53 +
    1.54 +/**
    1.55 + * Count of running nanoseconds - used to cut back on the GUI runtime
    1.56 + */
    1.57 +static uint32_t android_gui_nanos = 0;
    1.58 +static uint32_t android_gui_ticks = 0;
    1.59 +static struct timeval android_gui_lasttv;
    1.60 +
    1.61 +
    1.62 +void android_gui_start( void )
    1.63 +{
    1.64 +    /* Dreamcast starting up hook */
    1.65 +}
    1.66 +
    1.67 +void android_gui_stop( void )
    1.68 +{
    1.69 +    /* Dreamcast stopping hook */
    1.70 +}
    1.71 +
    1.72 +void android_gui_reset( void )
    1.73 +{
    1.74 +    /* Dreamcast reset hook */
    1.75 +}
    1.76 +
    1.77 +/**
    1.78 + * The main emulation thread. (as opposed to the UI thread).
    1.79 + */
    1.80 +void *android_thread_main(void *data)
    1.81 +{
    1.82 +    while(1) {
    1.83 +        tqueue_process_wait();
    1.84 +    }
    1.85 +    return NULL;
    1.86 +}
    1.87 +
    1.88 +int android_set_surface(void *data)
    1.89 +{
    1.90 +    struct surface_info *surface = (struct surface_info *)data;
    1.91 +    video_egl_set_window(surface->win, surface->width, surface->height, surface->format);
    1.92 +    return 0;
    1.93 +}
    1.94 +
    1.95 +int android_clear_surface(void *data)
    1.96 +{
    1.97 +    struct surface_info *surface = (struct surface_info *)data;
    1.98 +
    1.99 +    if( dreamcast_is_running() ) {
   1.100 +        dreamcast_stop();
   1.101 +    }
   1.102 +    video_egl_clear_window();
   1.103 +    ANativeWindow_release(surface->win);
   1.104 +    surface->win = NULL;
   1.105 +    return 0;
   1.106 +}
   1.107 +
   1.108 +static pthread_t dreamcast_thread;
   1.109 +
   1.110 +void android_start_thread()
   1.111 +{
   1.112 +    pthread_attr_t attr;
   1.113 +
   1.114 +    pthread_attr_init(&attr);
   1.115 +    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
   1.116 +    int status = pthread_create(&dreamcast_thread, &attr, android_thread_main, NULL);
   1.117 +    if( status != 0 ) {
   1.118 +        /* Handle errors */
   1.119 +    }
   1.120 +}
   1.121 +
   1.122 +/** tqueue callback wrapper to get the right call type for simple events */
   1.123 +int android_callback_wrapper( void *fn )
   1.124 +{
   1.125 +    void (*cast_fn)(void) = fn;
   1.126 +    cast_fn();
   1.127 +}
   1.128 +
   1.129 +int android_mount_disc( void *data )
   1.130 +{
   1.131 +    char *s = (char *)data;
   1.132 +    ERROR err;
   1.133 +    gboolean result = gdrom_mount_image( s, &err ); /* TODO: Report error */
   1.134 +    return result;
   1.135 +}
   1.136 +
   1.137 +int android_toggle_run( void *data )
   1.138 +{
   1.139 +    if( dreamcast_is_running() ) {
   1.140 +        dreamcast_stop();
   1.141 +    } else {
   1.142 +        dreamcast_run();
   1.143 +    }
   1.144 +}
   1.145 +
   1.146 +uint32_t android_gui_run_slice( uint32_t nanosecs )
   1.147 +{
   1.148 +    android_gui_nanos += nanosecs;
   1.149 +    if( android_gui_nanos > GUI_TICK_PERIOD ) { /* 10 ms */
   1.150 +        android_gui_nanos -= GUI_TICK_PERIOD;
   1.151 +        android_gui_ticks ++;
   1.152 +        uint32_t current_period = android_gui_ticks * GUI_TICK_PERIOD;
   1.153 +
   1.154 +        // Run the event loop
   1.155 +        tqueue_process_all();
   1.156 +
   1.157 +        struct timeval tv;
   1.158 +        gettimeofday(&tv,NULL);
   1.159 +        uint32_t ns = ((tv.tv_sec - android_gui_lasttv.tv_sec) * 1000000000) +
   1.160 +        (tv.tv_usec - android_gui_lasttv.tv_usec)*1000;
   1.161 +        if( (ns * 1.05) < current_period ) {
   1.162 +            // We've gotten ahead - sleep for a little bit
   1.163 +            struct timespec tv;
   1.164 +            tv.tv_sec = 0;
   1.165 +            tv.tv_nsec = current_period - ns;
   1.166 +            nanosleep(&tv, &tv);
   1.167 +        }
   1.168 +
   1.169 +#if 0
   1.170 +        /* Update the display every 10 ticks (ie 10 times a second) and
   1.171 +         * save the current tv value */
   1.172 +        if( android_gui_ticks > 10 ) {
   1.173 +            android_gui_ticks -= 10;
   1.174 +
   1.175 +            double speed = (float)( (double)current_period * 100.0 / ns );
   1.176 +            android_gui_lasttv.tv_sec = tv.tv_sec;
   1.177 +            android_gui_lasttv.tv_usec = tv.tv_usec;
   1.178 +            main_window_set_speed( main_win, speed );
   1.179 +        }
   1.180 +#endif
   1.181 +    }
   1.182 +    return nanosecs;
   1.183 +
   1.184 +
   1.185 +}
   1.186 +
   1.187 +struct dreamcast_module android_gui_module = { "gui", NULL,
   1.188 +        android_gui_reset,
   1.189 +        android_gui_start,
   1.190 +        android_gui_run_slice,
   1.191 +        android_gui_stop,
   1.192 +        NULL, NULL };
   1.193 +
   1.194 +gboolean gui_error_dialog( const char *fmt, ... )
   1.195 +{
   1.196 +    return FALSE; /* TODO */
   1.197 +}
   1.198 +
   1.199 +void gui_update_state()
   1.200 +{
   1.201 +    /* TODO */
   1.202 +}
   1.203 +
   1.204 +void gui_set_use_grab( gboolean grab )
   1.205 +{
   1.206 +    /* No implementation - mouse grab doesn't exist */
   1.207 +}
   1.208 +
   1.209 +void gui_update_io_activity( io_activity_type activity, gboolean active )
   1.210 +{
   1.211 +    /* No implementation */
   1.212 +}
   1.213 +
   1.214 +void gui_do_later( do_later_callback_t func )
   1.215 +{
   1.216 +    func(); /* TODO */
   1.217 +}
   1.218 +
   1.219 +static void android_init( const char *appHomeDir )
   1.220 +{
   1.221 +    set_global_log_level("info");
   1.222 +    appHome = appHomeDir;
   1.223 +    const char *confFile = g_strdup_printf("%s/lxdreamrc", appHome);
   1.224 +    set_user_data_path(appHome);
   1.225 +    lxdream_set_config_filename( confFile );
   1.226 +    lxdream_make_config_dir( );
   1.227 +    lxdream_load_config( );
   1.228 +    iso_init();
   1.229 +    gdrom_list_init();
   1.230 +    vmulist_init();
   1.231 +    dreamcast_init(1);
   1.232 +
   1.233 +    dreamcast_register_module( &android_gui_module );
   1.234 +    audio_init_driver(NULL);
   1.235 +    display_driver_t display_driver = get_display_driver_by_name(NULL);
   1.236 +    display_set_driver(display_driver);
   1.237 +
   1.238 +    hotkeys_init();
   1.239 +    serial_init();
   1.240 +    maple_reattach_all();
   1.241 +    INFO( "%s! ready...", APP_NAME );
   1.242 +    android_start_thread();
   1.243 +}
   1.244 +
   1.245 +
   1.246 +/************************* Dreamcast native entry points **************************/
   1.247 +
   1.248 +static char *getStringChars( JNIEnv *env, jstring str );
   1.249 +
   1.250 +/**
   1.251 + * Main initialization entry point. We need to do all the setup that main()
   1.252 + * would normally do, as well as any UI specific setup.
   1.253 + */
   1.254 +JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_init(JNIEnv * env, jclass obj,  jstring homeDir )
   1.255 +{
   1.256 +    android_init( getStringChars(env, homeDir) );
   1.257 +}
   1.258 +
   1.259 +JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_run(JNIEnv * env, jclass obj)
   1.260 +{
   1.261 +    tqueue_post_message( android_callback_wrapper, dreamcast_run );
   1.262 +}
   1.263 +
   1.264 +JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_toggleRun(JNIEnv * env, jclass obj)
   1.265 +{
   1.266 +    tqueue_post_message( android_toggle_run, NULL );
   1.267 +}
   1.268 +
   1.269 +JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_reset(JNIEnv * env, jclass obj)
   1.270 +{
   1.271 +    tqueue_post_message( android_callback_wrapper, dreamcast_reset );
   1.272 +}
   1.273 +
   1.274 +JNIEXPORT void JNICALL Java_org_lxdream_Dreamcast_stop(JNIEnv * env, jclass obj)
   1.275 +{
   1.276 +    /* Need to make sure this completely shuts down before we return */
   1.277 +    tqueue_send_message( android_callback_wrapper, dreamcast_stop );
   1.278 +}
   1.279 +
   1.280 +JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunning(JNIEnv *env, jclass obj)
   1.281 +{
   1.282 +    return dreamcast_is_running();
   1.283 +}
   1.284 +
   1.285 +JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_isRunnable(JNIEnv *env, jclass obj)
   1.286 +{
   1.287 +    return dreamcast_can_run();
   1.288 +}
   1.289 +
   1.290 +JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_mount(JNIEnv *env, jclass obj, jstring str)
   1.291 +{
   1.292 +    char *s = getStringChars(env, str);
   1.293 +    return tqueue_send_message( android_mount_disc, s );
   1.294 +}
   1.295 +
   1.296 +JNIEXPORT jboolean JNICALL Java_org_lxdream_Dreamcast_unmount(JNIEnv *env, jclass obj)
   1.297 +{
   1.298 +    tqueue_post_message( android_callback_wrapper, gdrom_unmount_disc );
   1.299 +}
   1.300 +
   1.301 +
   1.302 +/************************* LxdreamView native entry points **************************/
   1.303 +
   1.304 +JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_setSurface(JNIEnv * env, jobject view, jobject surface, jint width, jint height)
   1.305 +{
   1.306 +    current_surface.win = ANativeWindow_fromSurface(env, surface);
   1.307 +    current_surface.width = width;
   1.308 +    current_surface.height = height;
   1.309 +    int fmt = ANativeWindow_getFormat(current_surface.win);
   1.310 +    if( fmt == WINDOW_FORMAT_RGB_565 ) {
   1.311 +        current_surface.format = COLFMT_RGB565;
   1.312 +    } else {
   1.313 +        current_surface.format = COLFMT_RGB888;
   1.314 +    }
   1.315 +    tqueue_post_message( android_set_surface, &current_surface );
   1.316 +}
   1.317 +
   1.318 +JNIEXPORT void JNICALL Java_org_lxdream_LxdreamView_clearSurface(JNIEnv * env, jobject view, jobject surface)
   1.319 +{
   1.320 +    /* Need to make sure this completely shuts down before we return */
   1.321 +    tqueue_send_message( android_clear_surface, &current_surface );
   1.322 +}
   1.323 +
   1.324 +
   1.325 +/************************* JNI Support functions **************************/
   1.326 +
   1.327 +static char *getStringChars( JNIEnv *env, jstring str )
   1.328 +{
   1.329 +    jboolean iscopy;
   1.330 +    const char *p = (*env)->GetStringUTFChars(env, str, &iscopy);
   1.331 +    char *result = strdup(p);
   1.332 +    (*env)->ReleaseStringUTFChars(env,str,p);
   1.333 +    return result;
   1.334 +}