コード例 #1
0
ファイル: adpcm.cs プロジェクト: DarrenRainey/xnamame036
        public override int start(Mame.MachineSound msound)
        {
            OKIM6295interface intf = (OKIM6295interface)msound.sound_interface;
            string stream_name;
            int i;

            /* reset the ADPCM system */
            num_voices = (byte)(intf.num * MAX_OKIM6295_VOICES);
            compute_tables();
            sample_list = null;

            /* initialize the voices */

            for (i = 0; i < num_voices; i++)
            {
                int chip = i / MAX_OKIM6295_VOICES;
                int voice = i % MAX_OKIM6295_VOICES;

                /* reset the OKI-specific parameters */
                okim6295_command[chip] = -1;

                okim6295_base[chip][voice] = 0;

                /* generate the name and create the stream */
                stream_name = Mame.sprintf("%s #%d (voice %d)", Mame.sound_name(msound), chip, voice);
                _adpcm[i].stream = Mame.stream_init(stream_name, intf.mixing_level[chip], Mame.Machine.sample_rate, i, adpcm_update);
                if (_adpcm[i].stream == -1)
                    return 1;

                /* initialize the rest of the structure */
                _adpcm[i].region_base = Mame.memory_region(intf.region[chip]);
                _adpcm[i].volume = 255;
                _adpcm[i].signal = unchecked((uint)-2);
                if (Mame.Machine.sample_rate != 0)
                    _adpcm[i].source_step = (uint)((double)intf.frequency[chip] * (double)FRAC_ONE / (double)Mame.Machine.sample_rate);
            }

            /* success */
            return 0;
        }
コード例 #2
0
ファイル: adpcm.cs プロジェクト: DarrenRainey/xnamame036
 public override void stop()
 {
     sample_list = null;
     throw new NotImplementedException();
 }
コード例 #3
0
ファイル: adpcm.cs プロジェクト: DarrenRainey/xnamame036
        public override int start(Mame.MachineSound msound)
        {
            ADPCMinterface intf = (ADPCMinterface)msound.sound_interface;
            string stream_name;

            /* reset the ADPCM system */
            num_voices = (byte)intf.num;
            compute_tables();
            sample_list = null;

            /* generate the sample table, if one is needed */
            if (intf.init != null)
            {
                /* allocate memory for it */
                sample_list = new ADPCMsample[257];
                if (sample_list == null)
                    return 1;
                for (int i = 0; i < 257; i++)
                    sample_list[i] = new ADPCMsample();

                /* callback to initialize */
                intf.init(intf, sample_list, 256);
            }

            /* initialize the voices */
            //memset(adpcm, 0, sizeof(adpcm));
            for (int i = 0; i < num_voices; i++)
            {
                /* generate the name and create the stream */
                stream_name = Mame.sprintf("%s #%d", Mame.sound_name(msound), i);
                adpcm[i].stream = Mame.stream_init(stream_name, intf.mixing_level[i], Mame.Machine.sample_rate, i, okim6295.adpcm_update);
                if (adpcm[i].stream == -1)
                    return 1;

                /* initialize the rest of the structure */
                adpcm[i].region_base = Mame.memory_region(intf.region);
                adpcm[i].volume = 255;
                adpcm[i].signal = unchecked((uint)-2);
                if (Mame.Machine.sample_rate != 0)
                    adpcm[i].source_step = (uint)((double)intf.frequency * (double)FRAC_ONE / (double)Mame.Machine.sample_rate);
            }

            /* success */
            return 0;
        }