Merge remote repo native into ext/native/.

ext/native/android/native_audio.cpp

@@ -0,0 +1,71 @@
+#include "base/logging.h"
+#include "android/native_audio.h"
+#include "android/native-audio-so.h"
+
+struct AudioState {
+	void *so;
+	AndroidAudioCallback callback;
+	bool playing;
+	int frames_per_buffer;
+	int sample_rate;
+};
+
+static AudioState *state = 0;
+
+bool AndroidAudio_Init(AndroidAudioCallback callback, std::string libraryDir, int optimalFramesPerBuffer, int optimalSampleRate) {
+	if (state != 0) {
+		ELOG("Audio state already exists");
+		return false;
+	}
+
+	state = new AudioState();
+	state->callback = callback;
+	state->playing = false;
+	state->frames_per_buffer = optimalFramesPerBuffer ? optimalFramesPerBuffer : 256;
+	state->sample_rate = optimalSampleRate ? optimalSampleRate : 44100;
+
+	return true;
+}
+
+bool AndroidAudio_Resume() {
+	if (!state) {
+		ELOG("Audio was shutdown, cannot resume!");
+		return false;
+	}
+	if (!state->playing) {
+		ILOG("Calling OpenSLWrap_Init_T...");
+		bool init_retval = OpenSLWrap_Init(state->callback, state->frames_per_buffer, state->sample_rate);
+		ILOG("Returned from OpenSLWrap_Init_T");
+		state->playing = true;
+		return init_retval;
+	}
+	return false;
+}
+
+bool AndroidAudio_Pause() {
+	if (!state) {
+		ELOG("Audio was shutdown, cannot pause!");
+		return false;
+	}
+	if (state->playing) {
+		ILOG("Calling OpenSLWrap_Shutdown_T...");
+		OpenSLWrap_Shutdown();
+		ILOG("Returned from OpenSLWrap_Shutdown_T ...");
+		state->playing = false;
+		return true;
+	}
+	return false;
+}
+
+void AndroidAudio_Shutdown() {
+	if (!state) {
+		ELOG("Audio already shutdown!");
+		return;
+	}
+	if (state->playing) {
+		ELOG("Should not shut down when playing! Something is wrong!");
+	}
+	delete state;
+	state = 0;
+	ILOG("OpenSLWrap completely unloaded.");
+}