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-rw-r--r--src/mess/audio/mac.c174
1 files changed, 0 insertions, 174 deletions
diff --git a/src/mess/audio/mac.c b/src/mess/audio/mac.c
deleted file mode 100644
index 7a0b7a93a62..00000000000
--- a/src/mess/audio/mac.c
+++ /dev/null
@@ -1,174 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nathan Woods, Raphael Nabet, R. Belmont
-/***************************************************************************
-
- mac.c
-
- Sound handler
-
-****************************************************************************/
-
-
-#include "emu.h"
-#include "sound/asc.h"
-#include "includes/mac.h"
-#include "machine/ram.h"
-
-/***************************************************************************
- MACROS / CONSTANTS
-***************************************************************************/
-
-#define MAC_MAIN_SND_BUF_OFFSET 0x0300
-#define MAC_ALT_SND_BUF_OFFSET 0x5F00
-#define MAC_SND_BUF_SIZE 370 /* total number of scan lines */
-#define MAC_SAMPLE_RATE ( MAC_SND_BUF_SIZE * 60 /*22255*/ ) /* scan line rate, should be 22254.5 Hz */
-
-
-/* intermediate buffer */
-#define SND_CACHE_SIZE 128
-
-
-
-
-const device_type MAC_SOUND = &device_creator<mac_sound_device>;
-
-mac_sound_device::mac_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
- : device_t(mconfig, MAC_SOUND, "Mac Audio Custom", tag, owner, clock, "mac_sound", __FILE__),
- device_sound_interface(mconfig, *this),
- m_sample_enable(0),
- m_mac_snd_buf_ptr(NULL),
- m_snd_cache_len(0),
- m_snd_cache_head(0),
- m_snd_cache_tail(0),
- m_indexx(0)
-{
-}
-
-//-------------------------------------------------
-// device_config_complete - perform any
-// operations now that the configuration is
-// complete
-//-------------------------------------------------
-
-void mac_sound_device::device_config_complete()
-{
-}
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void mac_sound_device::device_start()
-{
- mac_state *mac = machine().driver_data<mac_state>();
-
- m_snd_cache = auto_alloc_array_clear(machine(), UINT8, SND_CACHE_SIZE);
- m_mac_stream = machine().sound().stream_alloc(*this, 0, 1, MAC_SAMPLE_RATE);
-
- m_ram = machine().device<ram_device>(RAM_TAG);
- m_mac_model = mac->m_model;
-
- save_pointer(NAME(m_snd_cache), SND_CACHE_SIZE);
- save_item(NAME(m_sample_enable));
- save_item(NAME(m_snd_cache_len));
- save_item(NAME(m_snd_cache_head));
- save_item(NAME(m_snd_cache_tail));
- save_item(NAME(m_indexx));
-}
-
-//-------------------------------------------------
-// sound_stream_update - handle a stream update
-//-------------------------------------------------
-
-void mac_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
-{
- INT16 last_val = 0;
- stream_sample_t *buffer = outputs[0];
-
- if ((m_mac_model == MODEL_MAC_PORTABLE) || (m_mac_model == MODEL_MAC_PB100))
- {
- memset(buffer, 0, samples * sizeof(*buffer));
- return;
- }
-
- /* if we're not enabled, just fill with 0 */
- if (machine().sample_rate() == 0)
- {
- memset(buffer, 0, samples * sizeof(*buffer));
- return;
- }
-
- /* fill in the sample */
- while (samples && m_snd_cache_len)
- {
- *buffer++ = last_val = ((m_snd_cache[m_snd_cache_head] << 8) ^ 0x8000) & 0xff00;
- m_snd_cache_head++;
- m_snd_cache_head %= SND_CACHE_SIZE;
- m_snd_cache_len--;
- samples--;
- }
-
- while (samples--)
- {
- /* should never happen */
- *buffer++ = last_val;
- }
-}
-
-
-/***************************************************************************
- IMPLEMENTATION
-***************************************************************************/
-
-
-// Set the sound enable flag (VIA port line)
-void mac_sound_device::enable_sound(int on)
-{
- m_sample_enable = on;
-}
-
-
-// Set the current sound buffer (one VIA port line)
-void mac_sound_device::set_sound_buffer(int buffer)
-{
- if (buffer)
- m_mac_snd_buf_ptr = (UINT16 *) (m_ram->pointer() + m_ram->size() - MAC_MAIN_SND_BUF_OFFSET);
- else
- m_mac_snd_buf_ptr = (UINT16 *) (m_ram->pointer() + m_ram->size() - MAC_ALT_SND_BUF_OFFSET);
-}
-
-
-
-// Set the current sound volume (3 VIA port line)
-void mac_sound_device::set_volume(int volume)
-{
- m_mac_stream->update();
- volume = (100 / 7) * volume;
- m_mac_stream->set_output_gain(0, volume / 100.0);
-}
-
-
-
-// Fetch one byte from sound buffer and put it to sound output (called every scanline)
-void mac_sound_device::sh_updatebuffer()
-{
- UINT16 *base = m_mac_snd_buf_ptr;
-
- m_indexx++;
- m_indexx %= 370;
-
- if (m_snd_cache_len >= SND_CACHE_SIZE)
- {
- /* clear buffer */
- m_mac_stream->update();
- }
-
- if (m_snd_cache_len >= SND_CACHE_SIZE)
- /* should never happen */
- return;
-
- m_snd_cache[m_snd_cache_tail] = m_sample_enable ? (base[m_indexx] >> 8) & 0xff : 0;
- m_snd_cache_tail++;
- m_snd_cache_tail %= SND_CACHE_SIZE;
- m_snd_cache_len++;
-}