From: Neils Wagenaar <sdlemu@ngemu.com>
Date: Sat, 16 Aug 2003 17:28:32 +0000 (+0000)
Subject: Renamed to dac.cpp
X-Git-Tag: 1.0.5~27
X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31115c6c4b11ed2e9138edcdbc5199d0c96e7941;p=virtualjaguar

Renamed to dac.cpp
---

diff --git a/src/pcm.cpp b/src/pcm.cpp
deleted file mode 100644
index 846dfc9..0000000
--- a/src/pcm.cpp
+++ /dev/null
@@ -1,141 +0,0 @@
-//
-// PCM Handler
-//
-// by cal2
-// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
-// Cleanups by James L. Hammons
-//
-
-#include "pcm.h"
-
-//#define PCM_DUMP
-
-#define sample_rate 44100
-#define sample_bits 16
-#define buffer_size 4
-#define buffer_modulo (sample_rate * buffer_size)
-
-static int16 * pcm_left;
-static int16 * pcm_right;
-static uint32 pcm_left_pos;
-static uint32 pcm_right_pos;
-static uint32 pcm_left_playback_pos;
-static uint32 pcm_right_playback_pos;
-static uint32 pcm_sample_rate = sample_rate;
-static uint32 pcm_inc = (pcm_sample_rate << 8) / sample_rate;
-#ifdef PCM_DUMP
-static FILE * fp_left;
-static FILE * fp_right;
-#endif
-
-
-void pcm_set_sample_rate(int rate)
-{
-	pcm_sample_rate = rate;
-	pcm_inc = (pcm_sample_rate << 8) / sample_rate;
-//	fprintf(log_get(),"pcm: sample rate is %i hz, sample increment is %i (%f)\n",pcm_sample_rate,pcm_inc,((float)pcm_inc)/256.0f);
-}
-
-void pcm_updateOne(int channel, int16 * data, uint32 length)
-{
-	if (channel == 0)
-	{
-		while (length)
-		{
-			*data++ = pcm_left[(pcm_left_playback_pos >> 8) % buffer_modulo];
-			pcm_left_playback_pos += pcm_inc;
-			length--;
-		}
-	}
-	else
-	{
-		while (length)
-		{
-			*data++ = pcm_right[(pcm_right_playback_pos >> 8) % buffer_modulo];
-			pcm_right_playback_pos += pcm_inc;
-			length--;
-		}
-	}
-}
-
-void pcm_init(void)
-{
-	memory_malloc_secure((void **)&pcm_left, buffer_modulo * sizeof(int16), "Left DAC buffer");
-	memory_malloc_secure((void **)&pcm_right, buffer_modulo * sizeof(int16), "Right DAC buffer");
-	pcm_reset();
-#ifdef PCM_DUMP
-	fp_left = fopen("leftdac.raw", "wb");
-	fp_right = fopen("rightdac.raw", "wb");
-#endif
-}
-
-void pcm_reset(void)
-{
-	pcm_left_pos = 0;
-	pcm_right_pos = 0;
-	pcm_left_playback_pos = 0;
-	pcm_right_playback_pos = 0;
-}
-
-void pcm_done(void)
-{
-#ifdef PCM_DUMP
-	fclose(fp_left);
-	fclose(fp_right);
-#endif
-	fprintf(log_get(), "PCM: Done.\n");
-}
-
-void pcm_update(void)
-{
-}
-
-void pcm_render_left_dac(void)
-{
-#ifdef PCM_DUMP
-	fwrite(pcm_left, 1, sample_rate * 2, fp_left);
-#endif
-}
-
-void pcm_render_right_dac(void)
-{
-#ifdef PCM_DUMP
-	fwrite(pcm_right, 1, sample_rate * 2, fp_right);
-#endif
-}
-
-void pcm_byte_write(uint32 offset, uint8 data)
-{
-//	fprintf(log_get(),"pcm: writing 0x%.2x at 0x%.8x\n",data,offset);
-}
-
-void pcm_word_write(uint32 offset, uint16 data)
-{
-	if (offset == 2)
-	{
-		pcm_left[pcm_left_pos % buffer_modulo] = data;
-		pcm_left_pos++;
-		if ((pcm_left_pos % buffer_modulo) == 0)
-			pcm_render_left_dac();
-	}
-	else
-	if (offset == 6)
-	{
-		pcm_right[pcm_right_pos % buffer_modulo] = data;
-		pcm_right_pos++;
-		if ((pcm_right_pos % buffer_modulo) == 0)
-			pcm_render_right_dac();
-	}
-}
-
-uint8 pcm_byte_read(uint32 offset)
-{
-//	fprintf(log_get(),"pcm: reading byte from 0x%.8x\n",offset);
-	return 0xFF;
-}
-
-uint16 pcm_word_read(uint32 offset)
-{
-//	fprintf(log_get(),"pcm: reading word from 0x%.8x\n",offset);
-	return 0xFFFF;
-}