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/***************************************************************************
devlegcy.c
Legacy device helpers.
****************************************************************************
Copyright Aaron Giles
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name 'MAME' nor the names of its contributors may be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
#include "emu.h"
#include "devlegcy.h"
//**************************************************************************
// LEGACY DEVICE CONFIGURATION
//**************************************************************************
//-------------------------------------------------
// legacy_device_base - constructor
//-------------------------------------------------
legacy_device_base::legacy_device_base(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, UINT32 clock, device_get_config_func get_config)
: device_t(mconfig, type, "Legacy Device", tag, owner, clock),
m_get_config_func(get_config),
m_inline_config(NULL),
m_token(NULL)
{
// allocate a buffer for the inline configuration
UINT32 configlen = (UINT32)get_legacy_int(DEVINFO_INT_INLINE_CONFIG_BYTES);
if (configlen != 0)
m_inline_config = global_alloc_array_clear(UINT8, configlen);
// set the proper name
m_name = get_legacy_string(DEVINFO_STR_NAME);
m_shortname = get_legacy_string(DEVINFO_STR_SHORTNAME);
m_searchpath = m_shortname;
// create the token
int tokenbytes = get_legacy_int(DEVINFO_INT_TOKEN_BYTES);
if (tokenbytes != 0)
m_token = global_alloc_array_clear(UINT8, tokenbytes);
}
//-------------------------------------------------
// ~legacy_device_base - destructor
//-------------------------------------------------
legacy_device_base::~legacy_device_base()
{
global_free(m_token);
global_free(m_inline_config);
}
//-------------------------------------------------
// get_legacy_int - return a legacy
// configuration parameter as an integer
//-------------------------------------------------
INT64 legacy_device_base::get_legacy_int(UINT32 state) const
{
deviceinfo info = { 0 };
(*m_get_config_func)(this, state, &info);
return info.i;
}
//-------------------------------------------------
// get_legacy_ptr - return a legacy
// configuration parameter as a pointer
//-------------------------------------------------
void *legacy_device_base::get_legacy_ptr(UINT32 state) const
{
deviceinfo info = { 0 };
(*m_get_config_func)(this, state, &info);
return info.p;
}
//-------------------------------------------------
// get_legacy_fct - return a legacy
// configuration parameter as a function pointer
//-------------------------------------------------
genf *legacy_device_base::get_legacy_fct(UINT32 state) const
{
deviceinfo info = { 0 };
(*m_get_config_func)(this, state, &info);
return info.f;
}
//-------------------------------------------------
// get_legacy_string - return a legacy
// configuration parameter as a string pointer
//-------------------------------------------------
const char *legacy_device_base::get_legacy_string(UINT32 state) const
{
deviceinfo info;
info.s = get_temp_string_buffer();
(*m_get_config_func)(this, state, &info);
return info.s;
}
//-------------------------------------------------
// static_set_inline32 - configuration helper to
// set a 32-bit value in the inline configuration
//-------------------------------------------------
void legacy_device_base::static_set_inline32(device_t &device, UINT32 offset, UINT32 size, UINT32 value)
{
legacy_device_base &legacy = downcast<legacy_device_base &>(device);
void *dest = reinterpret_cast<UINT8 *>(legacy.m_inline_config) + offset;
if (size == 1)
*reinterpret_cast<UINT8 *>(dest) = value;
else if (size == 2)
*reinterpret_cast<UINT16 *>(dest) = value;
else if (size == 4)
*reinterpret_cast<UINT32 *>(dest) = value;
else
throw emu_fatalerror("Unexpected size %d in legacy_device_base::static_set_inline32", size);
}
//-------------------------------------------------
// static_set_inline64 - configuration helper to
// set a 64-bit value in the inline configuration
//-------------------------------------------------
void legacy_device_base::static_set_inline64(device_t &device, UINT32 offset, UINT32 size, UINT64 value)
{
legacy_device_base &legacy = downcast<legacy_device_base &>(device);
void *dest = reinterpret_cast<UINT8 *>(legacy.m_inline_config) + offset;
if (size == 1)
*reinterpret_cast<UINT8 *>(dest) = value;
else if (size == 2)
*reinterpret_cast<UINT16 *>(dest) = value;
else if (size == 4)
*reinterpret_cast<UINT32 *>(dest) = value;
else if (size == 8)
*reinterpret_cast<UINT64 *>(dest) = value;
else
throw emu_fatalerror("Unexpected size %d in legacy_device_base::static_set_inline64", size);
}
//-------------------------------------------------
// static_set_inline_float - configuration helper
// to set a floating-point value in the inline
// configuration
//-------------------------------------------------
void legacy_device_base::static_set_inline_float(device_t &device, UINT32 offset, UINT32 size, float value)
{
legacy_device_base &legacy = downcast<legacy_device_base &>(device);
void *dest = reinterpret_cast<UINT8 *>(legacy.m_inline_config) + offset;
if (size == 4)
*reinterpret_cast<float *>(dest) = value;
else
throw emu_fatalerror("Unexpected size %d in legacy_device_base::static_set_inline_float", size);
}
//-------------------------------------------------
// device_validity_check - perform validity
// checks on a device configuration
//-------------------------------------------------
void legacy_device_base::device_validity_check(validity_checker &valid) const
{
device_validity_check_func validity_func = reinterpret_cast<device_validity_check_func>(get_legacy_fct(DEVINFO_FCT_VALIDITY_CHECK));
if (validity_func != NULL)
(*validity_func)(&mconfig().gamedrv(), this, mconfig().options());
}
//-------------------------------------------------
// device_start - called to start up a device
//-------------------------------------------------
void legacy_device_base::device_start()
{
device_start_func start_func = reinterpret_cast<device_start_func>(get_legacy_fct(DEVINFO_FCT_START));
assert(start_func != NULL);
(*start_func)(this);
}
//-------------------------------------------------
// device_reset - called to reset a device
//-------------------------------------------------
void legacy_device_base::device_reset()
{
device_reset_func reset_func = reinterpret_cast<device_reset_func>(get_legacy_fct(DEVINFO_FCT_RESET));
if (reset_func != NULL)
(*reset_func)(this);
}
//-------------------------------------------------
// device_stop - called to stop a device
//-------------------------------------------------
void legacy_device_base::device_stop()
{
if (started())
{
device_stop_func stop_func = reinterpret_cast<device_stop_func>(get_legacy_fct(DEVINFO_FCT_STOP));
if (stop_func != NULL)
(*stop_func)(this);
}
}
//**************************************************************************
// LEGACY SOUND DEVICE
//**************************************************************************
//-------------------------------------------------
// legacy_sound_device_base - constructor
//-------------------------------------------------
legacy_sound_device_base::legacy_sound_device_base(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, UINT32 clock, device_get_config_func get_config)
: legacy_device_base(mconfig, type, tag, owner, clock, get_config),
device_sound_interface(mconfig, *this)
{
}
//-------------------------------------------------
// sound_stream_update - handle a stream update
//-------------------------------------------------
void legacy_sound_device_base::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
{
// should never get here
fatalerror("legacy_sound_device_base::sound_stream_update called; not applicable to legacy sound devices\n");
}
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