Method resize

gles3jni/app/src/main/cpp/gles3jni.cpp:132–146

Renderer::~Renderer() {}

void Renderer::resize(int w, int h) {
  auto offsets = mapOffsetBuf();
  calcSceneParams(w, h, offsets);
  unmapOffsetBuf();

  // Auto gives a signed int :-(
  for (auto i = (unsigned)0; i < mNumInstances; i++) {
    mAngles[i] = drand48() * TWO_PI;
    mAngularVelocity[i] = MAX_ROT_SPEED * (2.0 * drand48() - 1.0);
  }

  mLastFrameNs = 0;

  glViewport(0, 0, w, h);
}

void Renderer::calcSceneParams(unsigned int w, unsigned int h, float* offsets) {
  // number of cells along the larger screen dimension