1 files changed, 108 insertions, 0 deletions
diff --git a/backends/mixer/sdl2/sdl2-mixer.cpp b/backends/mixer/sdl2/sdl2-mixer.cpp
new file mode 100644
index 0000000000..96a1361a8c
--- /dev/null
+++ b/backends/mixer/sdl2/sdl2-mixer.cpp
@@ -0,0 +1,108 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "common/scummsys.h"
+
+#if defined(SDL_BACKEND)
+
+#include "backends/mixer/sdl2/sdl2-mixer.h"
+#include "common/debug.h"
+#include "common/system.h"
+#include "common/config-manager.h"
+#include "common/textconsole.h"
+
+#ifdef GP2X
+#define SAMPLES_PER_SEC 11025
+#else
+#define SAMPLES_PER_SEC 44100
+#endif
+
+Sdl2MixerManager::Sdl2MixerManager()
+	:
+	SdlMixerManager(),
+	_device(0) {
+
+}
+
+Sdl2MixerManager::~Sdl2MixerManager() {
+	_mixer->setReady(false);
+
+	SDL_CloseAudioDevice(_device);
+
+	delete _mixer;
+}
+
+void Sdl2MixerManager::init() {
+	// Start SDL Audio subsystem
+	if (SDL_InitSubSystem(SDL_INIT_AUDIO) == -1) {
+		error("Could not initialize SDL: %s", SDL_GetError());
+	}
+
+	// Get the desired audio specs
+	SDL_AudioSpec desired = getAudioSpec(SAMPLES_PER_SEC);
+
+	// Start SDL audio with the desired specs
+	_device = SDL_OpenAudioDevice(NULL, 0, &desired, &_obtained,
+			SDL_AUDIO_ALLOW_FREQUENCY_CHANGE);
+
+	if (_device <= 0) {
+		warning("Could not open audio device: %s", SDL_GetError());
+
+		_mixer = new Audio::MixerImpl(g_system, desired.freq);
+		assert(_mixer);
+		_mixer->setReady(false);
+	} else {
+		debug(1, "Output sample rate: %d Hz", _obtained.freq);
+
+		_mixer = new Audio::MixerImpl(g_system, _obtained.freq);
+		assert(_mixer);
+		_mixer->setReady(true);
+
+		startAudio();
+	}
+}
+
+void Sdl2MixerManager::startAudio() {
+	// Start the sound system
+	SDL_PauseAudioDevice(_device, 0);
+}
+
+void Sdl2MixerManager::suspendAudio() {
+	SDL_CloseAudioDevice(_device);
+	_audioSuspended = true;
+}
+
+int Sdl2MixerManager::resumeAudio() {
+	if (!_audioSuspended)
+		return -2;
+
+	_device = SDL_OpenAudioDevice(NULL, 0, &_obtained, NULL, 0);
+	if (_device <= 0) {
+		return -1;
+	}
+
+	SDL_PauseAudioDevice(_device, 0);
+	_audioSuspended = false;
+	return 0;
+}
+
+#endif