git.mutantstargoat.com Git - andemo/blob - src/android/main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <time.h>
   4 #include <unistd.h>
   5 #include <sys/time.h>
   6 #include <EGL/egl.h>
   7 #include <GLES2/gl2.h>
   8 #include <android/window.h>
   9 #include "android_native_app_glue.h"
  10 #include "demo.h"
  11 #include "logger.h"
  12 #include "demosys.h"
  13
  14 static void handle_command(struct android_app *app, int32_t cmd);
  15 static int handle_input(struct android_app *app, AInputEvent *ev);
  16 static int handle_touch_input(struct android_app *app, AInputEvent *ev);
  17 static int init_gl(void);
  18 static void destroy_gl(void);
  19 static unsigned long get_time_msec(void);
  20 static void hide_navbar(struct android_app *state);
  21
  22 struct android_app *app;
  23
  24 static EGLDisplay dpy;
  25 static EGLSurface surf;
  26 static EGLContext ctx;
  27 static int init_done, paused;
  28
  29 static int width, height;
  30
  31 static long start_time;
  32
  33
  34 void android_main(struct android_app *app_ptr)
  35 {
  36         app = app_ptr;
  37
  38         app->onAppCmd = handle_command;
  39         app->onInputEvent = handle_input;
  40
  41         hide_navbar(app);
  42
  43         start_logger();
  44
  45         printf("Running %d bit version\n", (int)sizeof(void*) << 3);
  46
  47         for(;;) {
  48                 int num_events;
  49                 struct android_poll_source *pollsrc;
  50
  51                 while(ALooper_pollAll(0, 0, &num_events, (void**)&pollsrc) >= 0) {
  52                         if(pollsrc) {
  53                                 pollsrc->process(app, pollsrc);
  54                         }
  55                 }
  56
  57                 if(app->destroyRequested) {
  58                         return;
  59                 }
  60                 if(init_done && !paused) {
  61                         time_msec = (long)get_time_msec() - start_time;
  62                         demo_display();
  63                         eglSwapBuffers(dpy, surf);
  64                 }
  65         }
  66 }
  67
  68 void swap_buffers(void)
  69 {
  70         eglSwapBuffers(dpy, surf);
  71 }
  72
  73 static void handle_command(struct android_app *app, int32_t cmd)
  74 {
  75         int xsz, ysz;
  76
  77         switch(cmd) {
  78         case APP_CMD_PAUSE:
  79                 paused = 1;     /* TODO: handle timers */
  80                 dsys_stop();
  81                 break;
  82         case APP_CMD_RESUME:
  83                 paused = 0;
  84                 dsys_run();
  85                 break;
  86
  87         case APP_CMD_INIT_WINDOW:
  88                 ANativeActivity_setWindowFlags(app->activity, AWINDOW_FLAG_KEEP_SCREEN_ON, 0);
  89                 if(init_gl() == -1) {
  90                         exit(1);
  91                 }
  92                 if(demo_init() == -1) {
  93                         exit(1);
  94                 }
  95                 demo_reshape(width, height);
  96                 start_time = (long)get_time_msec();
  97                 init_done = 1;
  98                 dsys_run();
  99                 break;
 100
 101         case APP_CMD_TERM_WINDOW:
 102                 init_done = 0;
 103                 demo_cleanup();
 104                 destroy_gl();
 105                 break;
 106
 107         case APP_CMD_WINDOW_RESIZED:
 108         case APP_CMD_CONFIG_CHANGED:
 109                 xsz = ANativeWindow_getWidth(app->window);
 110                 ysz = ANativeWindow_getHeight(app->window);
 111                 if(xsz != width || ysz != height) {
 112                         printf("reshape(%d, %d)\n", xsz, ysz);
 113                         demo_reshape(xsz, ysz);
 114                         width = xsz;
 115                         height = ysz;
 116                 }
 117                 break;
 118
 119         /*
 120         case APP_CMD_SAVE_STATE:
 121         case APP_CMD_GAINED_FOCUS:
 122         case APP_CMD_LOST_FOCUS:
 123         */
 124         default:
 125                 break;
 126         }
 127 }
 128
 129 static int handle_input(struct android_app *app, AInputEvent *ev)
 130 {
 131         int evtype = AInputEvent_getType(ev);
 132
 133         switch(evtype) {
 134         case AINPUT_EVENT_TYPE_MOTION:
 135                 return handle_touch_input(app, ev);
 136
 137         default:
 138                 break;
 139         }
 140         return 0;
 141 }
 142
 143 static int handle_touch_input(struct android_app *app, AInputEvent *ev)
 144 {
 145         int i, pcount, x, y, idx;
 146         unsigned int action;
 147         static int prev_pos[2];
 148
 149         action = AMotionEvent_getAction(ev);
 150
 151         idx = (action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >>
 152                 AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
 153
 154         x = AMotionEvent_getX(ev, idx);
 155         y = AMotionEvent_getY(ev, idx);
 156
 157         switch(action & AMOTION_EVENT_ACTION_MASK) {
 158         case AMOTION_EVENT_ACTION_DOWN:
 159         case AMOTION_EVENT_ACTION_POINTER_DOWN:
 160                 demo_mouse(0, 1, x, y);
 161
 162                 prev_pos[0] = x;
 163                 prev_pos[1] = y;
 164                 break;
 165
 166         case AMOTION_EVENT_ACTION_UP:
 167         case AMOTION_EVENT_ACTION_POINTER_UP:
 168                 demo_mouse(0, 0, x, y);
 169
 170                 prev_pos[0] = x;
 171                 prev_pos[1] = y;
 172                 break;
 173
 174         case AMOTION_EVENT_ACTION_MOVE:
 175                 pcount = AMotionEvent_getPointerCount(ev);
 176                 for(i=0; i<pcount; i++) {
 177                         int id = AMotionEvent_getPointerId(ev, i);
 178                         if(id == 0) {
 179                                 demo_motion(x, y);
 180                                 prev_pos[0] = x;
 181                                 prev_pos[1] = y;
 182                                 break;
 183                         }
 184                 }
 185                 break;
 186
 187         default:
 188                 break;
 189         }
 190
 191         return 1;
 192 }
 193
 194 static int init_gl(void)
 195 {
 196         static const int eglattr[] = {
 197                 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
 198                 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
 199                 EGL_RED_SIZE, 5,
 200                 EGL_GREEN_SIZE, 5,
 201                 EGL_BLUE_SIZE, 5,
 202                 EGL_DEPTH_SIZE, 16,
 203                 EGL_NONE
 204         };
 205         static const int ctxattr[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
 206
 207         EGLConfig eglcfg;
 208         int count, vis;
 209
 210         dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
 211         if(!dpy || !eglInitialize(dpy, 0, 0)) {
 212                 fprintf(stderr, "failed to initialize EGL\n");
 213                 destroy_gl();
 214                 return -1;
 215         }
 216
 217         if(!eglChooseConfig(dpy, eglattr, &eglcfg, 1, &count)) {
 218                 fprintf(stderr, "no matching EGL config found\n");
 219                 destroy_gl();
 220                 return -1;
 221         }
 222
 223         /* configure the native window visual according to the chosen EGL config */
 224         eglGetConfigAttrib(dpy, &eglcfg, EGL_NATIVE_VISUAL_ID, &vis);
 225         ANativeWindow_setBuffersGeometry(app->window, 0, 0, vis);
 226
 227         if(!(surf = eglCreateWindowSurface(dpy, eglcfg, app->window, 0))) {
 228                 fprintf(stderr, "failed to create window\n");
 229                 destroy_gl();
 230                 return -1;
 231         }
 232
 233         if(!(ctx = eglCreateContext(dpy, eglcfg, EGL_NO_CONTEXT, ctxattr))) {
 234                 fprintf(stderr, "failed to create OpenGL ES context\n");
 235                 destroy_gl();
 236                 return -1;
 237         }
 238         eglMakeCurrent(dpy, surf, surf, ctx);
 239
 240         eglQuerySurface(dpy, surf, EGL_WIDTH, &width);
 241         eglQuerySurface(dpy, surf, EGL_HEIGHT, &height);
 242         return 0;
 243 }
 244
 245 static void destroy_gl(void)
 246 {
 247         if(!dpy) return;
 248
 249         eglMakeCurrent(dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
 250
 251         if(ctx) {
 252                 eglDestroyContext(dpy, ctx);
 253                 ctx = 0;
 254         }
 255         if(surf) {
 256                 eglDestroySurface(dpy, surf);
 257                 surf = 0;
 258         }
 259
 260         eglTerminate(dpy);
 261         dpy = 0;
 262 }
 263
 264 static unsigned long get_time_msec(void)
 265 {
 266         struct timespec ts;
 267         static struct timespec ts0;
 268
 269         clock_gettime(CLOCK_MONOTONIC, &ts);
 270         if(ts0.tv_sec == 0 && ts0.tv_nsec == 0) {
 271                 ts0 = ts;
 272                 return 0;
 273         }
 274         return (ts.tv_sec - ts0.tv_sec) * 1000 + (ts.tv_nsec - ts0.tv_nsec) / 1000000;
 275 }
 276
 277 static void hide_navbar(struct android_app *state)
 278 {
 279         JNIEnv *env;
 280         jclass cactivity, cwin, cview;
 281         jobject win, view;
 282         jmethodID get_window, get_decor_view, set_system_ui_visibility;
 283         jfieldID field_flag_fs, field_flag_hidenav, field_flag_immersive;
 284         int flag_fs, flag_hidenav, flag_immersive;
 285
 286         (*state->activity->vm)->AttachCurrentThread(state->activity->vm, &env, 0);
 287
 288         cactivity = (*env)->FindClass(env, "android/app/NativeActivity");
 289         get_window = (*env)->GetMethodID(env, cactivity, "getWindow", "()Landroid/view/Window;");
 290
 291         cwin = (*env)->FindClass(env, "android/view/Window");
 292         get_decor_view = (*env)->GetMethodID(env, cwin, "getDecorView", "()Landroid/view/View;");
 293
 294         cview = (*env)->FindClass(env, "android/view/View");
 295         set_system_ui_visibility = (*env)->GetMethodID(env, cview, "setSystemUiVisibility", "(I)V");
 296
 297         win = (*env)->CallObjectMethod(env, state->activity->clazz, get_window);
 298         view = (*env)->CallObjectMethod(env, win, get_decor_view);
 299
 300         field_flag_fs = (*env)->GetStaticFieldID(env, cview, "SYSTEM_UI_FLAG_FULLSCREEN", "I");
 301         field_flag_hidenav = (*env)->GetStaticFieldID(env, cview, "SYSTEM_UI_FLAG_HIDE_NAVIGATION", "I");
 302         field_flag_immersive = (*env)->GetStaticFieldID(env, cview, "SYSTEM_UI_FLAG_IMMERSIVE_STICKY", "I");
 303
 304         flag_fs = (*env)->GetStaticIntField(env, cview, field_flag_fs);
 305         flag_hidenav = (*env)->GetStaticIntField(env, cview, field_flag_hidenav);
 306         flag_immersive = (*env)->GetStaticIntField(env, cview, field_flag_immersive);
 307
 308         (*env)->CallVoidMethod(env, view, set_system_ui_visibility, flag_fs | flag_hidenav | flag_immersive);
 309
 310         (*state->activity->vm)->DetachCurrentThread(state->activity->vm);
 311 }