XAudio2 APU stub.

src/xenia/apu/xaudio2/xaudio2_audio_system.cc

@@ -0,0 +1,108 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <xenia/apu/xaudio2/xaudio2_audio_system.h>
+
+#include <xenia/apu/apu-private.h>
+#include <xenia/apu/xaudio2/xaudio2_audio_driver.h>
+
+#include <xenia/emulator.h>
+
+
+using namespace xe;
+using namespace xe::apu;
+using namespace xe::apu::xaudio2;
+
+
+XAudio2AudioSystem::XAudio2AudioSystem(Emulator* emulator) :
+    audio_(0), mastering_voice_(0), pcm_voice_(0),
+    AudioSystem(emulator) {
+}
+
+XAudio2AudioSystem::~XAudio2AudioSystem() {
+}
+
+void XAudio2AudioSystem::Initialize() {
+  AudioSystem::Initialize();
+
+  HRESULT hr;
+
+  hr = XAudio2Create(&audio_, 0, XAUDIO2_DEFAULT_PROCESSOR);
+  if (FAILED(hr)) {
+    XELOGE("XAudio2Create failed with %.8X", hr);
+    exit(1);
+    return;
+  }
+
+  hr = audio_->CreateMasteringVoice(&mastering_voice_);
+  if (FAILED(hr)) {
+    XELOGE("CreateMasteringVoice failed with %.8X", hr);
+    exit(1);
+  }
+
+  WAVEFORMATEX waveformat;
+  waveformat.wFormatTag = WAVE_FORMAT_PCM;
+  waveformat.nChannels = 1;
+  waveformat.nSamplesPerSec = 44100;
+  waveformat.nAvgBytesPerSec = 44100 * 2;
+  waveformat.nBlockAlign = 2;
+  waveformat.wBitsPerSample = 16;
+  waveformat.cbSize = 0;
+  hr = audio_->CreateSourceVoice(&pcm_voice_, &waveformat);
+  if (FAILED(hr)) {
+    XELOGE("CreateSourceVoice failed with %.8X", hr);
+    exit(1);
+  }
+
+  pcm_voice_->Start();
+
+  XEASSERTNULL(driver_);
+  driver_ = new XAudio2AudioDriver(memory_);
+}
+
+void XAudio2AudioSystem::Pump() {
+  //
+}
+
+void XAudio2AudioSystem::SubmitFrame(uint32_t samples_ptr) {
+  // Process samples! They are big-endian floats.
+  HRESULT hr;
+
+  auto samples = reinterpret_cast<float*>(emulator_->memory()->membase() + samples_ptr);
+  for (int i = 0; i < _countof(samples_); ++i)
+  {
+	  samples_[i] = XESWAPF32BE(*samples++);
+  }
+
+  // this is dumb and not right.
+  XAUDIO2_BUFFER buffer;
+  buffer.Flags = 0;
+  buffer.AudioBytes = sizeof(samples_);
+  buffer.pAudioData = reinterpret_cast<BYTE*>(samples_);
+  buffer.PlayBegin = 0;
+  buffer.PlayLength = 0;
+  buffer.LoopBegin = 0;
+  buffer.LoopLength = 0;
+  buffer.LoopCount = 0;
+  buffer.pContext = 0;
+  hr = pcm_voice_->SubmitSourceBuffer(&buffer);
+  if (FAILED(hr)) {
+    XELOGE("SubmitSourceBuffer failed with %.8X", hr);
+    exit(1);
+  }
+  hr = pcm_voice_->Start(0);
+  if (FAILED(hr)) {
+    XELOGE("Start failed with %.8X", hr);
+    exit(1);
+  }
+}
+
+void XAudio2AudioSystem::Shutdown() {
+  AudioSystem::Shutdown();
+}