crown-engine/engine/resource/SoundResource.h

/*
Copyright (c) 2013 Daniele Bartolini, Michele Rossi
Copyright (c) 2012 Daniele Bartolini, Simone Boscaratto

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*/

#pragma once

#include "Types.h"
#include "Resource.h"
#include "Bundle.h"
#include "Allocator.h"
#include "File.h"
#include "Device.h"
#include "SoundRenderer.h"

namespace crown
{

//-----------------------------------------------------------------------------
struct SoundType
{
	enum Enum
	{
		WAV = 0,
		OGG = 1
	};
};

const uint32_t SOUND_VERSION = 1;

//-----------------------------------------------------------------------------
struct SoundHeader
{
	uint32_t	version;	// Sound file version
	uint32_t	size;
	uint32_t	sample_rate;
	uint32_t	avg_bytes_ps;
	uint32_t	channels;
	uint16_t	block_size;
	uint16_t 	bits_ps;
	uint8_t		sound_type;
};


class SoundResource
{
public:

	//-----------------------------------------------------------------------------
	static void* load(Allocator& allocator, Bundle& bundle, ResourceId id)
	{
		File* file = bundle.open(id);

		SoundResource* resource = (SoundResource*)allocator.allocate(sizeof(SoundResource));

		file->read(&resource->m_header, sizeof(SoundHeader));

		size_t size = resource->size();

		resource->m_data = (uint8_t*)allocator.allocate(sizeof(uint8_t) * size);

		file->read(resource->m_data, size);

		bundle.close(file);

		return resource;
	}

	//-----------------------------------------------------------------------------
	static void online(void* resource)
	{
		CE_ASSERT(resource != NULL, "Resource not loaded");

		SoundResource* s = (SoundResource*)resource;

		SoundBufferId id = device()->sound_renderer()->create_sound_buffer((void*)s->data(), s->size(), s->sample_rate(), s->channels(), s->bits_ps());

		s->m_id = id;
	}

	//-----------------------------------------------------------------------------
	static void unload(Allocator& allocator, void* resource)
	{
		CE_ASSERT(resource != NULL, "Resource not loaded");

		allocator.deallocate(((SoundResource*)resource)->m_data);
		allocator.deallocate(resource);
	}

	//-----------------------------------------------------------------------------
	static void offline(void* resource)
	{
		CE_ASSERT(resource != NULL, "Resource not loaded");

		SoundResource* s = (SoundResource*)resource;

		device()->sound_renderer()->destroy_sound_buffer(s->m_id);
	}

public:

	uint32_t 			size() const { return m_header.size; }
	uint32_t			sample_rate() const { return m_header.sample_rate; }
	uint32_t			avg_bytes_ps() const { return m_header.avg_bytes_ps; }
	uint32_t			channels() const { return m_header.channels; }
	uint16_t			block_size() const { return m_header.block_size; }
	uint16_t			bits_ps() const { return m_header.bits_ps; }
	uint8_t				sound_type() const { return m_header.sound_type; }

	const uint8_t*		data() const { return m_data; }

public:

	SoundHeader		m_header;
	uint8_t*		m_data;
	SoundBufferId	m_id;
};

} // namespace crown