sound.cpp

3D游戏模板

/* sound system
 * CS Template game
 * (C)2002 Mat Sutcliffe. See license.txt for license info (GPL).
 */

#include <cssysdef.h>
#include <isound/renderer.h>
#include <isound/loader.h>
#include <isound/source.h>
#include <isound/handle.h>
#include <isound/data.h>
#include <iutil/vfs.h>
#include <iutil/cfgmgr.h>
#include <csutil/hashmap.h>
#include <iutil/objreg.h>

#include "sound.h"
#include "sys.h"

Sound::Sound(iObjectRegistry *obj) {
	objreg = obj;
	handles = new csHashMap;
	render = CS_QUERY_REGISTRY(objreg, iSoundRender);
	csRef<iVFS> vfs (CS_QUERY_REGISTRY(objreg, iVFS));
	csRef<iSoundLoader> loader (CS_QUERY_REGISTRY(objreg, iSoundLoader));
	csRef<iConfigManager> conf (CS_QUERY_REGISTRY(objreg, iConfigManager));
	if (conf->SubsectionExists(GAME ".Sound.")) {
		csRef<iConfigIterator> iter (conf->Enumerate(GAME ".Sound."));
		System::require(render, "Finding Sound Renderer");
		System::require(loader, "Finding Sound Loader");
		while (iter->Next()) {
			csRef<iFile> file 
				(vfs->Open(iter->GetStr(), VFS_FILE_READ));
			if (file) {
				size_t size = file->GetSize();
				char data[size];
				file->Read(data, size);
				csRef<iSoundData> sdata
					(loader->LoadSound(data, size));
				System::require(sdata, "Loading Sound");
				csRef<iSoundHandle> handle
					(render->RegisterSound(sdata));
				System::require(handle, "Registering Sound");
				handles->Put(csHashCompute(iter->GetKey(1)),
					(csHashObject)handle);
			} else System::report("Can't load an audio file");
		}
	}
}

Sound::~Sound() {
	csHashIterator iter (handles);
	while (iter.HasNext()) {
		csRef<iSoundHandle> handle ((iSoundHandle *)iter.Next());
		render->UnregisterSound(handle);
	}
	delete handles;
}

csPtr<iSoundSource> Sound::GetSource(char *name, int mode) {
	csRef<iSoundHandle> hdl ((iSoundHandle *)handles->Get(csHashCompute(name)));
	if (hdl) return hdl->CreateSource(mode);
	else return (iSoundSource *)NULL;
}