Try to fix @micropython.viper issues on macOS/darwin

ThomasFarstrike · ThomasFarstrike · commit 27b6b531068b · 2025-11-22T16:32:43.000+01:00
diff --git a/internal_filesystem/apps/com.micropythonos.draw/assets/draw.py b/internal_filesystem/apps/com.micropythonos.draw/assets/draw.py
@@ -61,7 +61,7 @@ def draw_line(self, x, y):
         lv.draw_line(self.layer,dsc)
         self.canvas.finish_layer(self.layer)
 
-    @micropython.viper # make it with native compilation
+    # @micropython.viper # "invalid micropython decorator" on macOS
     def draw_rect(self, x: int, y: int):
         draw_dsc = lv.draw_rect_dsc_t()
         lv.draw_rect_dsc_t.init(draw_dsc)
diff --git a/internal_filesystem/apps/com.micropythonos.musicplayer/assets/audio_player.py b/internal_filesystem/apps/com.micropythonos.musicplayer/assets/audio_player.py
@@ -201,22 +201,29 @@ def play_wav(cls, filename, result_callback=None):
                 print(f"Playing {data_size} original bytes (vol {cls._volume}%) ...")
                 f.seek(data_start)
 
-                # ----- Viper volume scaler (16-bit only) -------------------------
-                @micropython.viper
+                # Fallback to non-viper and non-functional code on desktop, as macOS/darwin throws "invalid micropython decorator"
                 def scale_audio(buf: ptr8, num_bytes: int, scale_fixed: int):
-                    for i in range(0, num_bytes, 2):
-                        lo = int(buf[i])
-                        hi = int(buf[i+1])
-                        sample = (hi << 8) | lo
-                        if hi & 128:
-                            sample -= 65536
-                        sample = (sample * scale_fixed) // 32768
-                        if sample > 32767:
-                            sample = 32767
-                        elif sample < -32768:
-                            sample = -32768
-                        buf[i] = sample & 255
-                        buf[i+1] = (sample >> 8) & 255
+                    pass
+
+                try:
+                    # ----- Viper volume scaler (16-bit only) -------------------------
+                    @micropython.viper # throws "invalid micropython decorator" on macOS / darwin
+                    def scale_audio(buf: ptr8, num_bytes: int, scale_fixed: int):
+                        for i in range(0, num_bytes, 2):
+                            lo = int(buf[i])
+                            hi = int(buf[i+1])
+                            sample = (hi << 8) | lo
+                            if hi & 128:
+                                sample -= 65536
+                            sample = (sample * scale_fixed) // 32768
+                            if sample > 32767:
+                                sample = 32767
+                            elif sample < -32768:
+                                sample = -32768
+                            buf[i] = sample & 255
+                            buf[i+1] = (sample >> 8) & 255
+                except SyntaxError:
+                    print("Viper not supported (e.g., on desktop)—using plain Python.")
 
                 chunk_size = 4096
                 bytes_per_original_sample = (bits_per_sample // 8) * channels
@@ -276,3 +283,16 @@ def scale_audio(buf: ptr8, num_bytes: int, scale_fixed: int):
             if cls._i2s:
                 cls._i2s.deinit()
                 cls._i2s = None
+
+
+
+def optional_viper(func):
+    """Decorator to apply @micropython.viper if possible."""
+    try:
+        @micropython.viper
+        @func  # Wait, no—see below for proper chaining
+        def wrapped(*args, **kwargs):
+            return func(*args, **kwargs)
+        return wrapped
+    except SyntaxError:
+        return func  # Fallback to original
