Function RenderPlasma

bitmap-plasma/app/src/main/cpp/plasma.cpp:330–365

}

void RenderPlasma(JNIEnv* env, jclass, jobject bitmap, jlong time_ms) {
  AndroidBitmapInfo info;
  void* pixels;
  int ret;
  static Stats stats;
  static int init;

  if (!init) {
    init_tables();
    stats_init(&stats);
    init = 1;
  }

  if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
    LOGE("AndroidBitmap_getInfo() failed ! error=%d", ret);
    return;
  }

  if (info.format != ANDROID_BITMAP_FORMAT_RGB_565) {
    LOGE("Bitmap format is not RGB_565 !");
    return;
  }

  if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
    LOGE("AndroidBitmap_lockPixels() failed ! error=%d", ret);
  }

  stats_startFrame(&stats);

  /* Now fill the values with a nice little plasma */
  fill_plasma(&info, pixels, time_ms);

  AndroidBitmap_unlockPixels(env, bitmap);

  stats_endFrame(&stats);
}