From fa234f9663b992cf50bcf865a1cde6845b42193c Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Mon, 21 May 2018 16:02:00 +0800
Subject: =?UTF-8?q?=E4=BF=AE=E6=94=B9audio=E6=A8=A1=E5=9D=97?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/libjin/audio/sdl/audio.cpp  | 83 +++++++++++++++++++++++++++++++++++++++++
 src/libjin/audio/sdl/audio.h    | 59 +++++++++++++++++++++++++++++
 src/libjin/audio/sdl/source.cpp |  2 +
 src/libjin/audio/sdl/source.h   | 19 ++++++++++
 4 files changed, 163 insertions(+)
 create mode 100644 src/libjin/audio/sdl/audio.cpp
 create mode 100644 src/libjin/audio/sdl/audio.h
 create mode 100644 src/libjin/audio/sdl/source.cpp
 create mode 100644 src/libjin/audio/sdl/source.h

(limited to 'src/libjin/audio/sdl')

diff --git a/src/libjin/audio/sdl/audio.cpp b/src/libjin/audio/sdl/audio.cpp
new file mode 100644
index 0000000..0559c18
--- /dev/null
+++ b/src/libjin/audio/sdl/audio.cpp
@@ -0,0 +1,83 @@
+#include "audio.h"
+
+namespace jin
+{
+namespace audio
+{
+
+    onlyonce bool SDLAudio::_init(const SettingBase* s)
+    {
+        if (SDL_Init(SDL_INIT_AUDIO) < 0)
+            return false;
+
+        const SDLAudioSetting* setting = (SDLAudioSetting*)s;
+        SDL_AudioSpec wanted;
+        zero(wanted);
+        wanted.freq = setting->rate;
+        wanted.format = setting->resolution;
+        wanted.channels = setting->channels;
+        wanted.samples = setting->samples;
+        wanted.userdata = setting->userdata;
+        wanted.callback = setting->callback;
+
+        if (SDL_OpenAudio(&wanted, NULL) < 0)
+        {
+            return false;
+        }
+        // start audio 
+        SDL_PauseAudio(0);
+        return true;
+    }
+
+    onlyonce void SDLAudio::_quit()
+    {
+        SDL_CloseAudio();
+        delete audio;
+    }
+
+    void SDLAudio::defaultCallback(void *udata, Uint8 *stream, int len)
+    {
+
+    }
+
+    void SDLAudio::play() {}
+    
+    void SDLAudio::stop() {}
+    
+    bool SDLAudio::pause()
+    {
+        return false;
+    }
+
+    bool SDLAudio::pause(Source* source)
+    {
+        return false; 
+    }
+    
+    bool SDLAudio::resume()
+    {
+        return false;
+    }
+    
+    bool SDLAudio::resume(Source* source)
+    {
+        return false;
+    }
+    
+    void SDLAudio::rewind() 
+    {
+    
+    }
+    
+    void SDLAudio::setVolume(float volume) 
+    {
+    
+    }
+    
+    float SDLAudio::getVolume() 
+    {
+        return 0.f;
+    }
+
+}
+}
diff --git a/src/libjin/audio/sdl/audio.h b/src/libjin/audio/sdl/audio.h
new file mode 100644
index 0000000..920f56a
--- /dev/null
+++ b/src/libjin/audio/sdl/audio.h
@@ -0,0 +1,59 @@
+#ifndef __JIN_AUDIO_SDL_H
+#define __JIN_AUDIO_SDL_H
+
+#include "../audio.h"
+
+namespace jin
+{
+namespace audio
+{
+
+    class SDLAudio : public Audio
+    {
+    
+    public: 
+        
+        struct Setting : SettingBase
+        {
+            int rate;       // 采样率
+            int resolution; // 分辨率
+            char channels;  // 声道数
+            int samples;    // 取样数
+            SDL_AudioCallback callback; // 音频回调
+            void* userdata; // 自定义参数
+        };
+
+        static void defaultCallback(void *udata, Uint8 *stream, int len);
+
+        static inline Audio* get()
+        {
+            return audio != NULL ? audio : (audio = new SDLAudio());
+        }
+
+        /* IAudio interface */
+        void play() override;
+        void stop() override;
+        bool pause() override;
+        bool pause(Source* source) override;
+        bool resume() override;
+        bool resume(Source* source) override;
+        void rewind() override;
+        void setVolume(float volume) override;
+        float getVolume() override;
+
+    private: 
+
+        SDLAudio() {}
+        ~SDLAudio() {}
+
+        onlyonce bool _init(const SettingBase* setting) override;
+        onlyonce void _quit() override;
+
+    };
+
+    typedef SDLAudio::Setting SDLAudioSetting;
+
+}
+}
+
+#endif
\ No newline at end of file
diff --git a/src/libjin/audio/sdl/source.cpp b/src/libjin/audio/sdl/source.cpp
new file mode 100644
index 0000000..cca4d3e
--- /dev/null
+++ b/src/libjin/audio/sdl/source.cpp
@@ -0,0 +1,2 @@
+#include "source.h"
+
diff --git a/src/libjin/audio/sdl/source.h b/src/libjin/audio/sdl/source.h
new file mode 100644
index 0000000..052a49e
--- /dev/null
+++ b/src/libjin/audio/sdl/source.h
@@ -0,0 +1,19 @@
+#ifndef __JIN_SOURCE_SDL_H
+#define __JIN_SOURCE_SDL_H
+
+#include "../source.h"
+
+namespace jin
+{
+namespace audio
+{
+
+    class SDLSource : public Source
+    {
+
+    };
+
+}
+}
+
+#endif
\ No newline at end of file
-- 
cgit v1.1-26-g67d0