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https://github.com/holub/mame
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Removed obsolete code detected by the dependency analyzer.
This commit is contained in:
Aaron Giles
parent
db797ba791
commit
266ad848cf
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@ -1250,7 +1250,6 @@ src/mame/audio/astrof.c svneol=native#text/plain
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src/mame/audio/atarifb.c svneol=native#text/plain
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src/mame/audio/atarijsa.c svneol=native#text/plain
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src/mame/audio/atarijsa.h svneol=native#text/plain
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src/mame/audio/attckufo.c svneol=native#text/plain
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src/mame/audio/avalnche.c svneol=native#text/plain
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src/mame/audio/aztarac.c svneol=native#text/plain
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src/mame/audio/blockade.c svneol=native#text/plain
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@ -1,279 +0,0 @@
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/***************************************************************************
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Attack ufo sound emulation
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based on MOS 6560 emulator by
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PeT mess@utanet.at
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***************************************************************************/
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#include "emu.h"
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#include "streams.h"
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#include "includes/attckufo.h"
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/*
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* assumed model:
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* each write to a ton/noise generated starts it new
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* each generator behaves like an timer
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* when it reaches 0, the next samplevalue is given out
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*/
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/*
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* noise channel
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* based on a document by diku0748@diku.dk (Asger Alstrup Nielsen)
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*
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* 23 bit shift register
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* initial value (0x7ffff8)
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* after shift bit 0 is set to bit 22 xor bit 17
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* dac sample bit22 bit20 bit16 bit13 bit11 bit7 bit4 bit2(lsb)
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*
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* emulation:
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* allocate buffer for 5 sec sampledata (fastest played frequency)
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* and fill this buffer in init with the required sample
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* fast turning off channel, immediate change of frequency
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*/
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#define NOISE_BUFFER_SIZE_SEC 5
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#define TONE1_ON (attckufo_regs[0xa]&0x80)
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#define TONE2_ON (attckufo_regs[0xb]&0x80)
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#define TONE3_ON (attckufo_regs[0xc]&0x80)
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#define NOISE_ON (attckufo_regs[0xd]&0x80)
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#define VOLUME (attckufo_regs[0xe]&0x0f)
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#define OUTPUT_RATE (14318181/14/32)
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#define TONE_FREQUENCY_MIN ((14318181/14)/256/128)
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#define TONE1_VALUE (8*(128-((attckufo_regs[0xa]+1)&0x7f)))
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#define TONE1_FREQUENCY ((14318181/14)/32/TONE1_VALUE)
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#define TONE2_VALUE (4*(128-((attckufo_regs[0xb]+1)&0x7f)))
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#define TONE2_FREQUENCY ((14318181/14)/32/TONE2_VALUE)
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#define TONE3_VALUE (2*(128-((attckufo_regs[0xc]+1)&0x7f)))
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#define TONE3_FREQUENCY ((14318181/14)/32/TONE3_VALUE)
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#define NOISE_VALUE (32*(128-((attckufo_regs[0xd]+1)&0x7f)))
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#define NOISE_FREQUENCY ((14318181/14)/NOISE_VALUE)
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#define NOISE_FREQUENCY_MAX ((14318181/14)/32/1)
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static int tone1pos = 0, tone2pos = 0, tone3pos = 0;
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static int tonesize, tone1samples, tone2samples, tone3samples;
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static int noisesize, /* number of samples */
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noisepos, /* pos of tone */
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noisesamples; /* count of samples to give out per tone */
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static sound_stream *channel;
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static INT16 *tone;
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static INT8 *noise;
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void attckufo_soundport_w (int offset, int data)
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{
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int old = attckufo_regs[offset];
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stream_update(channel);
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switch (offset)
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{
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case 0xa:
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attckufo_regs[offset] = data;
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if (!(old & 0x80) && TONE1_ON)
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{
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tone1pos = 0;
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tone1samples = OUTPUT_RATE / TONE1_FREQUENCY;
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if (tone1samples == 0)
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tone1samples = 1;
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}
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break;
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case 0xb:
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attckufo_regs[offset] = data;
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if (!(old & 0x80) && TONE2_ON)
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{
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tone2pos = 0;
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tone2samples = OUTPUT_RATE / TONE2_FREQUENCY;
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if (tone2samples == 0)
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tone2samples = 1;
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}
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break;
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case 0xc:
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attckufo_regs[offset] = data;
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if (!(old & 0x80) && TONE3_ON)
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{
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tone3pos = 0;
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tone3samples = OUTPUT_RATE / TONE3_FREQUENCY;
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if (tone2samples == 0)
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tone2samples = 1;
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}
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break;
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case 0xd:
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attckufo_regs[offset] = data;
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if (NOISE_ON)
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{
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noisesamples = (int) ((double) NOISE_FREQUENCY_MAX * OUTPUT_RATE
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* NOISE_BUFFER_SIZE_SEC / NOISE_FREQUENCY);
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if ((double) noisepos / noisesamples >= 1.0)
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{
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noisepos = 0;
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}
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}
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else
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{
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noisepos = 0;
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}
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break;
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case 0xe:
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attckufo_regs[offset] = (old & ~0xf) | (data & 0xf);
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break;
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}
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}
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/************************************/
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/* Sound handler update */
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/************************************/
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static STREAM_UPDATE( attckufo_update )
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{
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int i, v;
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stream_sample_t *buffer = outputs[0];
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for (i = 0; i < samples; i++)
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{
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v = 0;
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if (TONE1_ON /*||(tone1pos!=0) */ )
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{
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v += tone[tone1pos * tonesize / tone1samples];
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tone1pos++;
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if (tone1pos >= tone1samples)
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{
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tone1pos = 0;
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tone1samples = OUTPUT_RATE / TONE1_FREQUENCY;
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if (tone1samples == 0)
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tone1samples = 1;
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}
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}
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if (TONE2_ON )
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{
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v += tone[tone2pos * tonesize / tone2samples];
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tone2pos++;
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if (tone2pos >= tone2samples)
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{
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tone2pos = 0;
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tone2samples = OUTPUT_RATE / TONE2_FREQUENCY;
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if (tone2samples == 0)
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tone2samples = 1;
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}
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}
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if (TONE3_ON )
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{
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v += tone[tone3pos * tonesize / tone3samples];
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tone3pos++;
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if (tone3pos >= tone3samples)
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{
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tone3pos = 0;
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tone3samples = OUTPUT_RATE / TONE3_FREQUENCY;
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if (tone3samples == 0)
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tone3samples = 1;
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}
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}
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if (NOISE_ON)
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{
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v += noise[(int) ((double) noisepos * noisesize / noisesamples)];
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noisepos++;
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if ((double) noisepos / noisesamples >= 1.0)
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{
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noisepos = 0;
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}
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}
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v = (v * VOLUME) << 2;
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if (v > 32767)
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buffer[i] = 32767;
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else if (v < -32767)
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buffer[i] = -32767;
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else
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buffer[i] = v;
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}
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}
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/************************************/
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/* Sound handler start */
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/************************************/
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static DEVICE_START( attckufo_sound )
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{
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int i;
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channel = stream_create(device, 0, 1, OUTPUT_RATE, 0, attckufo_update);
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/* buffer for fastest played sample for 5 second
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* so we have enough data for min 5 second */
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noisesize = NOISE_FREQUENCY_MAX * NOISE_BUFFER_SIZE_SEC;
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noisepos = 0;
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noisesamples = 1;
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noise = auto_alloc_array(device->machine, INT8, noisesize);
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{
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int noiseshift = 0x7ffff8;
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char data;
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for (i = 0; i < noisesize; i++)
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{
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data = 0;
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if (noiseshift & 0x400000)
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data |= 0x80;
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if (noiseshift & 0x100000)
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data |= 0x40;
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if (noiseshift & 0x010000)
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data |= 0x20;
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if (noiseshift & 0x002000)
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data |= 0x10;
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if (noiseshift & 0x000800)
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data |= 0x08;
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if (noiseshift & 0x000080)
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data |= 0x04;
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if (noiseshift & 0x000010)
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data |= 0x02;
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if (noiseshift & 0x000004)
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data |= 0x01;
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noise[i] = data;
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if (((noiseshift & 0x400000) == 0) != ((noiseshift & 0x002000) == 0))
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noiseshift = (noiseshift << 1) | 1;
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else
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noiseshift <<= 1;
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}
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}
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tonesize = OUTPUT_RATE / TONE_FREQUENCY_MIN;
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tone1pos = tone2pos = tone3pos = 0;
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tone1samples = tone2samples = tone3samples = 1;
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tone = auto_alloc_array(device->machine, INT16, tonesize);
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for (i = 0; i < tonesize; i++)
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{
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tone[i] = (INT16)(sin (2 * M_PI * i / tonesize) * 127 + 0.5);
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}
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}
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DEVICE_GET_INFO( attckufo_sound )
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{
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switch (state)
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{
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/* --- the following bits of info are returned as pointers to data or functions --- */
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case DEVINFO_FCT_START: info->start = DEVICE_START_NAME(attckufo_sound);break;
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/* --- the following bits of info are returned as NULL-terminated strings --- */
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case DEVINFO_STR_NAME: strcpy(info->s, "Attack Ufo Custom"); break;
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case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
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}
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}
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@ -570,12 +570,6 @@ static const dma_draw_func prefix[32] = \
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};
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/* allow for custom blitters */
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#ifdef midtunit_CUSTOM_BLITTERS
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#include "midtblit.c"
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#endif
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/*** blitter family declarations ***/
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DECLARE_BLITTER_SET(dma_draw_skip_scale, dma_state.bpp, EXTRACTGEN, SKIP_YES, SCALE_YES)
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DECLARE_BLITTER_SET(dma_draw_noskip_scale, dma_state.bpp, EXTRACTGEN, SKIP_NO, SCALE_YES)
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