From a17e4b44c6b623a4543af30a6e1d68514211b641 Mon Sep 17 00:00:00 2001
From: KislyjKisel <danilakisel@gmail.com>
Date: Thu, 20 Jun 2024 20:14:37 +0300
Subject: [PATCH] Add thread entry and exit callbacks

---
 src/raudio.c | 33 ++++++++++++++++++++++++++++++++-
 src/raylib.h |  5 +++++
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/src/raudio.c b/src/raudio.c
index 623984e1d..6dde62f3f 100644
--- a/src/raudio.c
+++ b/src/raudio.c
@@ -175,6 +175,12 @@ typedef struct tagBITMAPINFOHEADER {
 // Threading model: Default: [0] COINIT_MULTITHREADED: COM calls objects on any thread (free threading)
 #define MA_COINIT_VALUE  2              // [2] COINIT_APARTMENTTHREADED: Each object has its own thread (apartment model)
 
+static void CallAudioThreadEntryCallback(void);
+static void CallAudioThreadExitCallback(void);
+
+#define MA_ON_THREAD_ENTRY CallAudioThreadEntryCallback();
+#define MA_ON_THREAD_EXIT CallAudioThreadExitCallback();
+
 #define MINIAUDIO_IMPLEMENTATION
 //#define MA_DEBUG_OUTPUT
 #include "external/miniaudio.h"         // Audio device initialization and management
@@ -391,6 +397,8 @@ typedef struct AudioData {
         int defaultSize;            // Default audio buffer size for audio streams
     } Buffer;
     rAudioProcessor *mixedProcessor;
+    AudioThreadEntryCallback threadEntryCallback;
+    AudioThreadExitCallback threadExitCallback;
 } AudioData;
 
 //----------------------------------------------------------------------------------
@@ -403,7 +411,9 @@ static AudioData AUDIO = {          // Global AUDIO context
     // standard double-buffering system, a 4096 samples buffer has been chosen, it should be enough
     // In case of music-stalls, just increase this number
     .Buffer.defaultSize = 0,
-    .mixedProcessor = NULL
+    .mixedProcessor = NULL,
+    .threadEntryCallback = NULL,
+    .threadExitCallback = NULL
 };
 
 //----------------------------------------------------------------------------------
@@ -2327,6 +2337,14 @@ void DetachAudioMixedProcessor(AudioCallback process)
     ma_mutex_unlock(&AUDIO.System.lock);
 }
 
+void SetAudioThreadEntryCallback(AudioThreadEntryCallback callback) {
+    AUDIO.threadEntryCallback = callback;
+}
+
+void SetAudioThreadExitCallback(AudioThreadExitCallback callback) {
+    AUDIO.threadExitCallback = callback;
+}
+
 
 //----------------------------------------------------------------------------------
 // Module specific Functions Definition
@@ -2698,6 +2716,19 @@ static void UpdateAudioStreamInLockedState(AudioStream stream, const void *data,
     }
 }
 
+static void CallAudioThreadEntryCallback(void) {
+    if (AUDIO.threadEntryCallback) {
+        AUDIO.threadEntryCallback();
+    }
+}
+
+static void CallAudioThreadExitCallback(void) {
+    if (AUDIO.threadExitCallback) {
+        AUDIO.threadExitCallback();
+    }
+}
+
+
 // Some required functions for audio standalone module version
 #if defined(RAUDIO_STANDALONE)
 // Check file extension
diff --git a/src/raylib.h b/src/raylib.h
index 9f06462fb..3206cba18 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -1596,6 +1596,8 @@ RLAPI RayCollision GetRayCollisionQuad(Ray ray, Vector3 p1, Vector3 p2, Vector3
 // Audio Loading and Playing Functions (Module: audio)
 //------------------------------------------------------------------------------------
 typedef void (*AudioCallback)(void *bufferData, unsigned int frames);
+typedef void (*AudioThreadEntryCallback)(void);
+typedef void (*AudioThreadExitCallback)(void);
 
 // Audio device management functions
 RLAPI void InitAudioDevice(void);                                     // Initialize audio device and context
@@ -1675,6 +1677,9 @@ RLAPI void DetachAudioStreamProcessor(AudioStream stream, AudioCallback processo
 RLAPI void AttachAudioMixedProcessor(AudioCallback processor); // Attach audio stream processor to the entire audio pipeline, receives the samples as 'float'
 RLAPI void DetachAudioMixedProcessor(AudioCallback processor); // Detach audio stream processor from the entire audio pipeline
 
+RLAPI void SetAudioThreadEntryCallback(AudioThreadEntryCallback callback); // Audio thread creation callback (usually should be called before audio device initialization, can be NULL)
+RLAPI void SetAudioThreadExitCallback(AudioThreadExitCallback callback); // Audio thread destruction callback (can be NULL)
+
 #if defined(__cplusplus)
 }
 #endif