fix android main loop, scale font texture

android/src/cpp/main.cpp

@@ -1110,7 +1110,7 @@ void android_main(struct android_app* state) {
         // If animating, we loop until all events are read, then continue
         // to draw the next frame of animation.
         bool used = false;
-        int timeout = g_engine.display != EGL_NO_DISPLAY ? 0 : -1;
+        int timeout = -1;//g_engine.display != EGL_NO_DISPLAY ? 0 : -1;
         while (!used && (ident=ALooper_pollOnce(timeout, NULL, &events,
                                       (void**)&source)) != ALOOPER_POLL_ERROR) {
 

src/font.cpp

@@ -15,6 +15,7 @@ bool Font::load(const std::string& ttf, int font_size, float font_scale)
     LOG("Font::load %s", ttf.c_str());
     if (file.open(ttf.c_str()) && file.read_all())
     {
+        w = h = 512 * ceilf(font_scale);
         path = ttf;
         scale = font_scale;
         LOG("Font::load loaded");

src/font.h

@@ -12,8 +12,8 @@ enum class kFont : uint16_t
 class Font
 {
 public:
-    const int w = 512;
-    const int h = 512;
+    int w = 512;
+    int h = 512;
     const int num_chars = 96;
     const int start_char = 32;
     // {mix, max}