1 files changed, 84 insertions, 0 deletions
diff --git a/src/device_sdl.cpp b/src/device_sdl.cpp
new file mode 100644
index 0000000..042c4dd
--- /dev/null
+++ b/src/device_sdl.cpp
@@ -0,0 +1,84 @@
+#include <algorithm>
+#include <string>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "device_sdl.h"
+#include "debug.h"
+
+
+namespace audiere {
+
+  SDLAudioDevice*
+  SDLAudioDevice::create(const ParameterList& parameters) {
+    
+    SDL_AudioSpec aspec;
+    aspec.format = AUDIO_S16LSB;
+    aspec.freq = 44100;
+    aspec.channels = 2;
+    aspec.samples = 1024;
+    aspec.callback = &SDLAudioDevice::outputCallback;
+
+    SDLAudioDevice* device = new SDLAudioDevice(aspec.freq, 4096);
+    aspec.userdata = device;
+
+    if (SDL_Init(SDL_INIT_AUDIO) < 0) {
+      ADR_LOG("Unable init sdl audio subsystem.\n");
+      delete device;
+      return 0;
+    }
+
+    SDL_AudioSpec obtained;
+    if (SDL_OpenAudio(&aspec, &obtained) < 0) {
+      ADR_LOG("Unable open sdl audio subsystem.\n");
+      delete device;
+      return 0;
+    }
+    if (aspec.format != obtained.format ||
+	aspec.freq != obtained.freq ||
+	aspec.channels != obtained.channels) {
+      ADR_LOG("Unsupported audio parameters.\n");
+      delete device;
+      return 0;
+    }
+
+    SDL_PauseAudio(0);
+    return device;
+  }
+
+  void SDLAudioDevice::outputCallback(void *user_data, Uint8 *stream, int len)
+  {
+    SDLAudioDevice *device = (SDLAudioDevice*)user_data;
+    device->read(len / 4, stream);
+  }
+
+  SDLAudioDevice::SDLAudioDevice(int rate, int buffer_size)
+    : MixerDevice(rate)
+  {
+    m_buffer_size = buffer_size;
+    m_buffer = new char [buffer_size];
+  }
+
+
+  SDLAudioDevice::~SDLAudioDevice() {
+    ADR_GUARD("SDLAudioDevice::~SDLAudioDevice");
+
+    SDL_CloseAudio();
+    SDL_QuitSubSystem(SDL_INIT_AUDIO);
+
+    delete [] m_buffer;
+  }
+
+
+  void ADR_CALL
+  SDLAudioDevice::update() {
+      AI_Sleep(1);
+  }
+
+
+  const char* ADR_CALL
+  SDLAudioDevice::getName() {
+    return "sdl";
+  }
+
+}