Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/audaspace/plugins/sdl/SDLDevice.h

@@ -0,0 +1,94 @@
+/*******************************************************************************
+ * 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.
+ ******************************************************************************/
+
+#pragma once
+
+#ifdef SDL_PLUGIN
+#define AUD_BUILD_PLUGIN
+#endif
+
+/**
+ * @file SDLDevice.h
+ * @ingroup plugin
+ * The SDLDevice class.
+ */
+
+#include "devices/SoftwareDevice.h"
+
+#include <SDL3/SDL.h>
+
+AUD_NAMESPACE_BEGIN
+
+/**
+ * This device plays back through SDL, the simple direct media layer.
+ */
+class AUD_PLUGIN_API SDLDevice : public SoftwareDevice
+{
+private:
+	/**
+	 * Whether there is currently playback.
+	 */
+	bool m_playback;
+
+	/**
+	 * The SDL audio stream.
+	 */
+	SDL_AudioStream* m_stream;
+
+	/**
+	 * SDL callback to mix the next bytes into the audio stream.
+	 * Uses the SDL_AudioStreamCallback signature.
+	 * \param userdata The SDL device.
+	 * \param stream The target audio stream.
+	 * \param additional_amount The number of bytes needed.
+	 * \param total_amount The total amount of data buffered.
+	 */
+	AUD_LOCAL static void SDL_mix(void* userdata, SDL_AudioStream* stream, int additional_amount, int total_amount);
+
+	/**
+	 * Helper function to convert Audaspace DeviceSpecs structs to SDL SDL_AudioSpec structs.
+	 */
+	AUD_LOCAL static SDL_AudioSpec sdl_audiospec_from_device_specs(const DeviceSpecs &specs);
+
+	// delete copy constructor and operator=
+	SDLDevice(const SDLDevice&) = delete;
+	SDLDevice& operator=(const SDLDevice&) = delete;
+
+protected:
+	virtual void playing(bool playing);
+
+public:
+	/**
+	 * Opens the SDL audio device for playback.
+	 * \param specs The wanted audio specification.
+	 * \param buffersize The size of the internal buffer.
+	 * \note The specification really used for opening the device may differ.
+	 * \exception Exception Thrown if the audio device cannot be opened.
+	 */
+	SDLDevice(DeviceSpecs specs, int buffersize = AUD_DEFAULT_BUFFER_SIZE);
+
+	/**
+	 * Closes the SDL audio device.
+	 */
+	virtual ~SDLDevice();
+
+	/**
+	 * Registers this plugin.
+	 */
+	static void registerPlugin();
+};
+
+AUD_NAMESPACE_END