-

libao/c/ao-play-async/ao_playasync.c

@@ -1,10 +1,32 @@
 #include "ao_playasync.h"
-#include <pthread.h>
+
+#ifdef WIN32
+#include <windows.h>
+#define USE_WINDOWS_THREADS
+#define sleep_ms(ms) Sleep(ms)
+#else
+#define USE_PTHREADS
+#define sleep_ms(ms) usleep(ms * 1000)
+#endif
+
+#ifdef USE_WINDOWS_THREADS
+  #define MUTEX_LOCK(m) WaitForSingleObject(m, INFINITE)
+  #define MUTEX_UNLOCK(m) ReleaseMutex(m)
+#endif
+
+#ifdef USE_PTHREADS
+  #include <pthread.h>
+  #define MUTEX_LOCK(m) pthread_mutex_lock(&m)
+  #define MUTEX_UNLOCK(m) pthread_mutex_unlock(&m)
+#endif
+
+#ifndef WIN32
 #include <unistd.h>
+#endif
+
 #include <assert.h>
 #include <malloc.h>
 #include <string.h>
-//#include <dlfcn.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -25,12 +47,21 @@ typedef struct _queue_ {
     struct _queue_ *prev;
 } Queue_t;
 
+typedef int(*ao_play_func_t)(void *, char *, uint32_t);
+
 typedef struct {
     Queue_t        *play_queue;
     Queue_t        *last_frame;
     ao_device      *ao_device;
+#ifdef USE_WINDOWS_THREADS
+    HANDLE          mutex;
+    HANDLE          thread;
+    DWORD           thread_id;
+#endif
+#ifdef USE_PTHREADS
     pthread_mutex_t mutex;
     pthread_t       thread;
+#endif
     double          at_second;
     ao_play_func_t  ao_play_f;
     int             buf_size;
@@ -111,58 +142,48 @@ static void clear(AO_Handle *h)
     }
 }
 
+#ifdef USE_PTHREADS
 static void *run(void *arg)
+#endif
+#ifdef USE_WINDOWS_THREADS
+static DWORD run(LPVOID arg)
+#endif
 {
     AO_Handle *handle = (AO_Handle *) arg;
 
     int go_on = (1 == 1);
 
     while(go_on) {
-        pthread_mutex_lock(&handle->mutex);
+        MUTEX_LOCK(handle->mutex);
         int has_frames = (handle->play_queue != NULL);
 
         if (has_frames) {
             Queue_t *q = get(handle);
             handle->at_second = q->at_second;
-            pthread_mutex_unlock(&handle->mutex);
+            MUTEX_UNLOCK(handle->mutex);
 
             if (q->command == STOP) {
                 go_on = (1 == 0);
             } else {
+                //fprintf(stderr, "playing buf at %lf\n", handle->at_second);
                 handle->ao_play_f(handle->ao_device, q->buf, q->buflen);
             }
 
             del_elem(q);
         } else {
-            pthread_mutex_unlock(&handle->mutex);
-            usleep(5000);   // sleep for 5ms
+            MUTEX_UNLOCK(handle->mutex);
+            sleep_ms(5);   // sleep for 5ms
         }
     }
 
+#ifdef USE_PTHREADS
     return NULL;
+#endif
+#ifdef USE_WINDOWS_THREADS
+    return 0;
+#endif
 }
 
-/*
-static void get_ao_play(void)
-{
-    char *lib = "libao.so";
-    void *handle = dlopen(lib, RTLD_LAZY);
-    if (!handle) {
-        fprintf(stderr, "Cannot open library %s: %s\n", lib, dlerror());
-        exit(EXIT_FAILURE);
-    }
-
-    ao_play = dlsym(handle, "ao_play");
-    char *err;
-    err = dlerror();
-    if (err != NULL) {
-        fprintf(stderr, "Cannot get function ao_play: %s\n", err);
-        exit(EXIT_FAILURE);
-    }
-}
-*/
-
-
 void *ao_create_async(void *ao_device_yeah, void *ao_play_f)
 {
     //if (ao_play == NULL) { get_ao_play(); }
@@ -173,12 +194,22 @@ void *ao_create_async(void *ao_device_yeah, void *ao_play_f)
     handle->play_queue = NULL;
     handle->last_frame = NULL;
     handle->at_second = -1;
-    pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
-    handle->mutex = m;
+
     handle->ao_play_f = ao_play_f;
     handle->buf_size = 0;
 
+#ifdef USE_PTHREADS
+    pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
+    handle->mutex = m;
     pthread_create(&handle->thread, NULL, run, handle);
+#endif
+
+#ifdef USE_WINDOWS_THREADS
+    handle->mutex = CreateMutex(NULL,              // default security attributes
+                                FALSE,             // initially not owned
+                                NULL);
+    handle->thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) run, handle, 0, &handle->thread_id);
+#endif
 
     return (void *) handle;
 }
@@ -187,14 +218,21 @@ void ao_stop_async(void *ao_handle)
 {
     AO_Handle *h = (AO_Handle *) ao_handle;
 
-    pthread_mutex_lock(&h->mutex);
+    MUTEX_LOCK(h->mutex);
     clear(h);
     Queue_t *q = new_elem(STOP, 0.0, 0, NULL);
     add(h, q);
-    pthread_mutex_unlock(&h->mutex);
+    MUTEX_UNLOCK(h->mutex);
 
+#ifdef USE_PTHREADS
     void *retval;
     pthread_join(h->thread, &retval);
+#endif
+#ifdef USE_WINDOWS_THREADS
+    WaitForSingleObject(h->thread, INFINITE);
+    CloseHandle(h->thread);
+    CloseHandle(h->mutex);
+#endif
     free(h);
 }
 
@@ -202,26 +240,26 @@ void ao_play_async(void *ao_handle, double at_second, int buf_size, void *mem)
 {
     AO_Handle *h = (AO_Handle *) ao_handle;
     Queue_t *q = new_elem(PLAY, at_second, buf_size, mem);
-    pthread_mutex_lock(&h->mutex);
+    MUTEX_LOCK(h->mutex);
     add(h, q);
-    pthread_mutex_unlock(&h->mutex);
+    MUTEX_UNLOCK(h->mutex);
 }
 
 double ao_is_at_second_async(void *ao_handle)
 {
     AO_Handle *h = (AO_Handle *) ao_handle;
-    pthread_mutex_lock(&h->mutex);
+    MUTEX_LOCK(h->mutex);
     double s = h->at_second;
-    pthread_mutex_unlock(&h->mutex);
+    MUTEX_UNLOCK(h->mutex);
     return s;
 }
 
 int ao_bufsize_async(void *ao_handle)
 {
     AO_Handle *h = (AO_Handle *) ao_handle;
-    pthread_mutex_lock(&h->mutex);
+    MUTEX_LOCK(h->mutex);
     int s = h->buf_size;
-    pthread_mutex_unlock(&h->mutex);
+    MUTEX_UNLOCK(h->mutex);
     return s;
 }
 

libao/c/ao-play-async/ao_playasync.h

@@ -1,14 +1,20 @@
 #ifndef AO_PLAYASYNC_H
 #define AO_PLAYASYNC_H
 
-#include <stdint.h>
+#ifdef _WINDOWS
+#ifdef AOPLAYASYNC_LIBRARY
+#define AOPLAYASYNC_EXPORT __declspec(dllexport)
+#else
+#define AOPLAYASYNC_EXPORT __declspec(dllimport)
+#endif
+#else
+#define AOPLAYASYNC_EXPORT extern
+#endif
 
-typedef int(*ao_play_func_t)(void *, char *, uint32_t);
-
-extern void *ao_create_async(void *ao_handle, void *ao_play_f);
-extern void ao_stop_async(void *handle);
-extern void ao_play_async(void *handle, double at_second, int buf_size, void *mem);
-extern double ao_is_at_second_async(void *handle);
-extern int ao_bufsize_async(void *handle);
+AOPLAYASYNC_EXPORT void *ao_create_async(void *ao_handle, void *ao_play_f);
+AOPLAYASYNC_EXPORT void ao_stop_async(void *handle);
+AOPLAYASYNC_EXPORT void ao_play_async(void *handle, double at_second, int buf_size, void *mem);
+AOPLAYASYNC_EXPORT double ao_is_at_second_async(void *handle);
+AOPLAYASYNC_EXPORT int ao_bufsize_async(void *handle);
 
 #endif // AO_PLAYASYNC_H

libao/libao-async-ffi.rkt

@@ -16,10 +16,14 @@
          ao_bufsize_async
          )
 
-(define-runtime-path libao-async-path "./lib/libao-play-async")
+(define-runtime-path libao-async-lib-path "./lib")
+
+(define lib (if (eq? (system-type 'os) 'windows)
+                (build-path libao-async-lib-path "ao-play-async")
+                (build-path libao-async-lib-path "libao-play-async")))
 
 (define-ffi-definer define-libao-async
-  (ffi-lib libao-async-path '("0" #f)
+  (ffi-lib lib '("0" #f)
            #:get-lib-dirs (λ ()
                             (let ((sp (cons (build-path ".") (get-lib-search-dirs))))
                               ;(displayln sp)

libao/libao.rkt

@@ -164,6 +164,11 @@
                      audio-buf-len
                      audio)
       )
+      ;(let* ((handle-num (ao-handle-handle-num handle))
+      ;       (ao-device (hash-ref devices handle-num #f)))
+      ;  (if (eq? ao-device #f)
+      ;      (error "No device for this handle")
+      ;      (ao_play ao-device audio audio-buf-len)))      )
     )
   )