start implementing openal soft

1 files changed, 64 insertions, 0 deletions

diff --git a/engine/xe_sound_device.cpp b/engine/xe_sound_device.cpp
new file mode 100644
index 0000000..0b85b6a
--- /dev/null
+++ b/engine/xe_sound_device.cpp
@@ -0,0 +1,64 @@
+#include "xe_sound_device.hpp"
+
+#include <stdexcept>
+#include <iostream>
+#include <cstring>
+
+namespace xe {
+
+XeSoundDevice::XeSoundDevice() {
+
+  ALboolean enumeration;
+  enumeration = alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT");
+  if (enumeration == AL_FALSE) {
+    fprintf(stderr, "enumeration extension not available\n");
+    listAudioDevices(alcGetString(NULL, ALC_DEVICE_SPECIFIER));
+  }
+
+  listAudioDevices(alcGetString(NULL, ALC_DEVICE_SPECIFIER));
+
+  const ALCchar* name = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
+
+  device = alcOpenDevice(name);
+  if (!device) {
+    std::runtime_error("failed to get sound device");
+  }
+
+  std::cout << "Audio Device: " << alcGetString(device, ALC_DEVICE_SPECIFIER) << "\n";
+
+  context = alcCreateContext(device, NULL);
+  if(!alcMakeContextCurrent(context)) {
+    std::runtime_error("failed to make sound context current");
+  }
+
+  alListener3f(AL_POSITION, 0.f, 0.f, 0.f);
+  alListener3f(AL_VELOCITY, 0.f, 0.f, 0.f);
+  ALfloat frontAndUpVectors[] = {
+		/* front*/1.f, 0.f, 0.f,
+		/* up */ 0.f, 1.f, 0.f
+	};
+	alListenerfv(AL_ORIENTATION, frontAndUpVectors);
+
+}
+
+void XeSoundDevice::listAudioDevices(const ALCchar* devices) {
+  const ALCchar *device = devices, *next = devices + 1;
+  size_t len = 0;
+
+  fprintf(stdout, "Devices list: ");
+  while (device && *device != '\0' && next && *next != '\0') {
+    fprintf(stdout, "%s, ", device);
+    len = strlen(device);
+    device += (len + 1);
+    next += (len + 2);
+  }
+  std::cout << "\n";
+}
+
+XeSoundDevice::~XeSoundDevice() {
+  alcMakeContextCurrent(nullptr);
+  alcDestroyContext(context);
+  alcCloseDevice(device);
+}
+
+}
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