Function Render

examples/107_wasm/diffusion.cpp:124–140

}

static void Render(Canvas& canvas, const FieldCell<Scal>& fcu, const M& m) {
  const auto msize = m.GetGlobalSize();
  for (auto c : m.CellsM()) {
    const MIdx w(c);
    const MIdx start = w * canvas.size / msize;
    const MIdx end = (w + MIdx(1)) * canvas.size / msize;
    unsigned char qr = 255 * Clamp(fcu[c]);
    unsigned char qg = 0;
    unsigned char qb = 0;
    uint32_t q = 0xff000000 | (qr << 0) | (qg << 8) | (qb << 16);
    for (int y = start[1]; y < end[1]; y++) {
      for (int x = start[0]; x < end[0]; x++) {
        canvas.buf[canvas.size[0] * (canvas.size[1] - y - 1) + x] = q;
      }
    }
  }
}

void Solver::Run() {
  auto sem = m.GetSem();