AF switch: restore hands-free fire on the native path; TV: point filter

With native auto-fire the switch only enabled the mode without holding
anything, so nothing fired (native AF chops a HELD trigger into pulses
— external trigger included). The switch now holds the external trigger
steady and lets the core pulse it. TV-mode launches add &filter=point,
the cheapest upscale path for weak TV GPUs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: tsemachh

3d/index.html

@@ -122,7 +122,7 @@ <h1>ATARI <span>ARCADE</span> · 3D</h1>
           if (g.joystick) url += "&joystick=" + encodeURIComponent(g.joystick);
           if (g.tilt) url += "&tilt=1";
           url += "&back_url=../3d/&back_label=" + encodeURIComponent("⬅ Games");
-          if (tvMode) url += "&tv=1";
+          if (tvMode) url += "&tv=1&filter=point";   // cheapest upscale for weak TV GPUs
           return url;
         }
 

emu/index.html

@@ -7852,9 +7852,12 @@ <h2 id="fw-title">Download standard Atari ROMs?</h2>
       var on = !afBtn.classList.contains('on');
       afBtn.classList.toggle('on', on);
       if (afNative()) {
+        // Native auto-fire chops a HELD trigger into ~10 Hz pulses (the
+        // external trigger included), so hands-free fire = enable AF and
+        // hold the external trigger steady; the core does the pulsing.
         try { Module._ATWasmSetAutoFire(on ? 1 : 0); } catch (err) {}
         if (afTimer) { clearInterval(afTimer); afTimer = null; }
-        if (!on && ext.fire) { ext.fire = false; pushExt(); }
+        ext.fire = on; pushExt();
       } else if (on) {
         afTimer = setInterval(function () {
           ext.fire = !ext.fire; pushExt();

index.html

@@ -361,7 +361,7 @@ <h1>ATARI <span class="accent">ARCADE</span></h1>
           // Opening the picker with ?tv=1 (smart-TV browsers) propagates
           // TV-remote controls into every game launch.
           try {
-            if (new URLSearchParams(location.search).get("tv") === "1") url += "&tv=1";
+            if (new URLSearchParams(location.search).get("tv") === "1") url += "&tv=1&filter=point";
           } catch (e) { /* ignore */ }
           return url;
         }

scripts/emu-autofullscreen.snippet.html

@@ -296,9 +296,12 @@
       var on = !afBtn.classList.contains('on');
       afBtn.classList.toggle('on', on);
       if (afNative()) {
+        // Native auto-fire chops a HELD trigger into ~10 Hz pulses (the
+        // external trigger included), so hands-free fire = enable AF and
+        // hold the external trigger steady; the core does the pulsing.
         try { Module._ATWasmSetAutoFire(on ? 1 : 0); } catch (err) {}
         if (afTimer) { clearInterval(afTimer); afTimer = null; }
-        if (!on && ext.fire) { ext.fire = false; pushExt(); }
+        ext.fire = on; pushExt();
       } else if (on) {
         afTimer = setInterval(function () {
           ext.fire = !ext.fire; pushExt();