From 67c110c4d4ea7a0a033d4ef7a85cb2da8108cafb Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Sun, 4 Oct 2026 12:39:12 +0000
Subject: [PATCH] Fix WASM audio wiring and m_defer_enterframe load check

Co-authored-by: ClausValcaTD <193546948+ClausValcaTD@users.noreply.github.com>
---
 src/wasm_api.cpp                              | 88 ++++++++++++++++++-
 .../gameswf/gameswf/gameswf_sprite.cpp        |  2 +-
 2 files changed, 86 insertions(+), 4 deletions(-)

diff --git a/src/wasm_api.cpp b/src/wasm_api.cpp
index b0879bd..3a78b3b 100644
--- a/src/wasm_api.cpp
+++ b/src/wasm_api.cpp
@@ -5,6 +5,7 @@
 #include "gameswf/gameswf_player.h"
 #include "gameswf/gameswf_movie_def.h"
 #include "gameswf/gameswf_types.h"
+#include "audio_mixer.h"
 #include <vector>
 #include <cstring>
 #include <algorithm>
@@ -19,6 +20,86 @@ uint32_t              g_wasm_height = 600;
 
 static gameswf::player* g_player = nullptr;
 static gameswf::root*   g_movie  = nullptr;
+static AudioMixer       g_audio_mixer;
+
+struct WasmSoundHandler : public gameswf::sound_handler {
+    struct SoundData {
+        std::vector<int16_t> samples;
+        int sample_rate = 44100;
+        bool stereo = true;
+        bool is_stream = false;
+    };
+
+    std::vector<SoundData> m_sounds;
+
+    void reset() {
+        m_sounds.clear();
+    }
+
+    virtual bool is_open() override {
+        return true;
+    }
+
+    virtual int create_sound(
+        void* data,
+        int data_bytes,
+        int sample_count,
+        format_type format,
+        int sample_rate,
+        bool stereo) override
+    {
+        int id = static_cast<int>(m_sounds.size());
+        m_sounds.push_back(SoundData());
+        m_sounds[id].sample_rate = sample_rate;
+        m_sounds[id].stereo = stereo;
+
+        if (data && data_bytes > 0) {
+            m_sounds[id].is_stream = false;
+            size_t num_samples = data_bytes / sizeof(int16_t);
+            const int16_t* pcm = static_cast<const int16_t*>(data);
+            m_sounds[id].samples.assign(pcm, pcm + num_samples);
+        } else {
+            m_sounds[id].is_stream = true;
+        }
+        return id;
+    }
+
+    virtual int load_sound(const char* url) override {
+        return -1;
+    }
+
+    virtual void append_sound(int sound_handle, void* data, int data_bytes) override {
+        if (sound_handle >= 0 && sound_handle < static_cast<int>(m_sounds.size())) {
+            if (data && data_bytes > 0) {
+                size_t num_samples = data_bytes / sizeof(int16_t);
+                const int16_t* pcm = static_cast<const int16_t*>(data);
+                m_sounds[sound_handle].samples.insert(
+                    m_sounds[sound_handle].samples.end(), pcm, pcm + num_samples);
+                g_audio_mixer.queue_samples(pcm, num_samples);
+            }
+        }
+    }
+
+    virtual void play_sound(gameswf::as_object* listener_obj, int sound_handle, int loop_count) override {
+        if (sound_handle >= 0 && sound_handle < static_cast<int>(m_sounds.size())) {
+            const auto& snd = m_sounds[sound_handle];
+            if (!snd.is_stream && !snd.samples.empty()) {
+                int loops = (loop_count < 0) ? 1 : (loop_count + 1);
+                for (int l = 0; l < loops; ++l) {
+                    g_audio_mixer.queue_samples(snd.samples.data(), snd.samples.size());
+                }
+            }
+        }
+    }
+
+    virtual void set_volume(int sound_handle, int volume) override {}
+    virtual void set_max_volume(int vol) override {}
+    virtual void stop_sound(int sound_handle) override {}
+    virtual void stop_all_sounds() override {}
+    virtual void delete_sound(int sound_handle) override {}
+};
+
+static WasmSoundHandler g_sound_handler;
 
 extern "C" {
 
@@ -31,7 +112,9 @@ int wasm_load_swf(const uint8_t* data, size_t size) {
     }
 
     gameswf::set_render_handler(create_render_handler_wasm());
-    gameswf::set_sound_handler(nullptr);
+    g_audio_mixer.reset();
+    g_sound_handler.reset();
+    gameswf::set_sound_handler(&g_sound_handler);
 
     tu_file* in = create_gameswf_tu_file_mem(data, size);
     if (!in) return 0;
@@ -89,8 +172,7 @@ uint32_t wasm_get_player_hp(void)    { return 0; }
 
 size_t wasm_get_audio_samples(int16_t* out_buffer, size_t num_frames) {
     if (!out_buffer || num_frames == 0) return 0;
-    std::memset(out_buffer, 0, num_frames * 2 * sizeof(int16_t));
-    return num_frames;
+    return g_audio_mixer.render_frame(out_buffer, num_frames);
 }
 
 } // extern "C"
diff --git a/third_party/gameswf/gameswf/gameswf_sprite.cpp b/third_party/gameswf/gameswf/gameswf_sprite.cpp
index 0b1fd99..f3ed026 100644
--- a/third_party/gameswf/gameswf/gameswf_sprite.cpp
+++ b/third_party/gameswf/gameswf/gameswf_sprite.cpp
@@ -329,7 +329,7 @@ namespace gameswf
 							character* sib = parent_sp->m_display_list.get_character(i);
 							if (sib && sib != this) {
 								sprite_instance* sib_sp = cast_to<sprite_instance>(sib);
-								if (sib_sp && sib_sp->get_character_def() && sib_sp->get_frame_count() > 0 && sib_sp->get_loaded_bytes() == 0) {
+								if (sib_sp && sib_sp->get_character_def() && sib_sp->get_frame_count() > 0 && sib_sp->m_on_event_load_called == false) {
 									skip_enterframe = true;
 									break;
 								}