43 lines
993 B
C++
43 lines
993 B
C++
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#include "stdafx.h"
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#include "scumm.h"
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#include "dc.h"
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#include <ronin/soundcommon.h>
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EXTERN_C void *memcpy4(void *s1, const void *s2, unsigned int n);
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void checkSound(Scumm *s)
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{
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int n;
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int curr_ring_buffer_samples;
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if(read_sound_int(&SOUNDSTATUS->mode) != MODE_PLAY)
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start_sound();
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curr_ring_buffer_samples = read_sound_int(&SOUNDSTATUS->ring_length);
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n = read_sound_int(&SOUNDSTATUS->samplepos);
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if((n-=fillpos)<0)
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n += curr_ring_buffer_samples;
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n = ADJUST_BUFFER_SIZE(n-10);
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if(n<100)
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return;
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s->mixWaves((short*)temp_sound_buffer, n);
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if(fillpos+n > curr_ring_buffer_samples) {
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int r = curr_ring_buffer_samples - fillpos;
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memcpy4(RING_BUF+fillpos, temp_sound_buffer, SAMPLES_TO_BYTES(r));
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fillpos = 0;
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n -= r;
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memcpy4(RING_BUF, temp_sound_buffer+r, SAMPLES_TO_BYTES(n));
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} else {
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memcpy4(RING_BUF+fillpos, temp_sound_buffer, SAMPLES_TO_BYTES(n));
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}
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if((fillpos += n) >= curr_ring_buffer_samples)
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fillpos = 0;
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}
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