1 files changed, 156 insertions, 0 deletions
diff --git a/extern/audaspace/plugins/sdl/SDLDevice.cpp b/extern/audaspace/plugins/sdl/SDLDevice.cpp
new file mode 100644
index 00000000000..603e16001b8
--- /dev/null
+++ b/extern/audaspace/plugins/sdl/SDLDevice.cpp
@@ -0,0 +1,156 @@
+/*******************************************************************************
+ * Copyright 2009-2016 Jörg Müller
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+
+#include "SDLDevice.h"
+#include "devices/DeviceManager.h"
+#include "devices/IDeviceFactory.h"
+#include "Exception.h"
+#include "IReader.h"
+
+AUD_NAMESPACE_BEGIN
+
+void SDLDevice::SDL_mix(void* data, Uint8* buffer, int length)
+{
+	SDLDevice* device = (SDLDevice*)data;
+
+	if(!device->m_playback)
+	{
+		SDL_PauseAudio(1);
+
+		std::memset(buffer, 0, length);
+
+		return;
+	}
+
+	device->mix((data_t*)buffer, length / AUD_DEVICE_SAMPLE_SIZE(device->m_specs));
+}
+
+void SDLDevice::playing(bool playing)
+{
+	if(!m_playback)
+		SDL_PauseAudio(playing ? 0 : 1);
+
+	m_playback = playing;
+}
+
+SDLDevice::SDLDevice(DeviceSpecs specs, int buffersize) :
+	m_playback(false)
+{
+	if(specs.channels == CHANNELS_INVALID)
+		specs.channels = CHANNELS_STEREO;
+	if(specs.format == FORMAT_INVALID)
+		specs.format = FORMAT_S16;
+	if(specs.rate == RATE_INVALID)
+		specs.rate = RATE_48000;
+
+	m_specs = specs;
+
+	SDL_AudioSpec format, obtained;
+
+	format.freq = m_specs.rate;
+	if(m_specs.format == FORMAT_U8)
+		format.format = AUDIO_U8;
+	else
+		format.format = AUDIO_S16SYS;
+	format.channels = m_specs.channels;
+	format.samples = buffersize;
+	format.callback = SDLDevice::SDL_mix;
+	format.userdata = this;
+
+	if(SDL_OpenAudio(&format, &obtained) != 0)
+		AUD_THROW(DeviceException, "The audio device couldn't be opened with SDL.");
+
+	m_specs.rate = (SampleRate)obtained.freq;
+	m_specs.channels = (Channels)obtained.channels;
+	if(obtained.format == AUDIO_U8)
+		m_specs.format = FORMAT_U8;
+	else if(obtained.format == AUDIO_S16LSB || obtained.format == AUDIO_S16MSB)
+		m_specs.format = FORMAT_S16;
+	else
+	{
+		SDL_CloseAudio();
+		AUD_THROW(DeviceException, "The sample format obtained from SDL is not supported.");
+	}
+
+	create();
+}
+
+SDLDevice::~SDLDevice()
+{
+	SDL_PauseAudio(1);
+	SDL_CloseAudio();
+
+	destroy();
+}
+
+class SDLDeviceFactory : public IDeviceFactory
+{
+private:
+	DeviceSpecs m_specs;
+	int m_buffersize;
+
+public:
+	SDLDeviceFactory() :
+		m_buffersize(AUD_DEFAULT_BUFFER_SIZE)
+	{
+		m_specs.format = FORMAT_S16;
+		m_specs.channels = CHANNELS_STEREO;
+		m_specs.rate = RATE_48000;
+	}
+
+	virtual std::shared_ptr<IDevice> openDevice()
+	{
+		return std::shared_ptr<IDevice>(new SDLDevice(m_specs, m_buffersize));
+	}
+
+	virtual int getPriority()
+	{
+		return 1 << 5;
+	}
+
+	virtual void setSpecs(DeviceSpecs specs)
+	{
+		m_specs = specs;
+	}
+
+	virtual void setBufferSize(int buffersize)
+	{
+		m_buffersize = buffersize;
+	}
+
+	virtual void setName(std::string name)
+	{
+	}
+};
+
+void SDLDevice::registerPlugin()
+{
+	DeviceManager::registerDevice("SDL", std::shared_ptr<IDeviceFactory>(new SDLDeviceFactory));
+}
+
+#ifdef SDL_PLUGIN
+extern "C" AUD_PLUGIN_API void registerPlugin()
+{
+	SDLDevice::registerPlugin();
+}
+
+extern "C" AUD_PLUGIN_API const char* getName()
+{
+	return "SDL";
+}
+#endif
+
+AUD_NAMESPACE_END