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+/***************************************************************************
+
+ speaker.h
+
+ Speaker output sound device.
+
+****************************************************************************
+
+ 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.
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __EMU_H__
+#error Dont include this file directly; include emu.h instead.
+#endif
+
+#ifndef __SPEAKER_H__
+#define __SPEAKER_H__
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+// device type definition
+extern const device_type SPEAKER;
+
+
+
+//**************************************************************************
+// DEVICE CONFIGURATION MACROS
+//**************************************************************************
+
+// add/remove speakers
+#define MCFG_SPEAKER_ADD(_tag, _x, _y, _z) \
+ MCFG_DEVICE_ADD(_tag, SPEAKER, 0) \
+ speaker_device::static_set_position(*device, _x, _y, _z); \
+
+#define MCFG_SPEAKER_STANDARD_MONO(_tag) \
+ MCFG_SPEAKER_ADD(_tag, 0.0, 0.0, 1.0)
+
+#define MCFG_SPEAKER_STANDARD_STEREO(_tagl, _tagr) \
+ MCFG_SPEAKER_ADD(_tagl, -0.2, 0.0, 1.0) \
+ MCFG_SPEAKER_ADD(_tagr, 0.2, 0.0, 1.0)
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> speaker_device
+
+class speaker_device : public device_t,
+ public device_mixer_interface
+{
+ friend resource_pool_object<speaker_device>::~resource_pool_object();
+
+public:
+ // construction/destruction
+ speaker_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ virtual ~speaker_device();
+
+ // inline configuration helpers
+ static void static_set_position(device_t &device, double x, double y, double z);
+
+ // internally for use by the sound system
+ void mix(INT32 *leftmix, INT32 *rightmix, int &samples_this_update, bool suppress);
+
+protected:
+ // device-level overrides
+ virtual void device_start() ATTR_COLD;
+
+ // inline configuration state
+ double m_x;
+ double m_y;
+ double m_z;
+
+ // internal state
+#ifdef MAME_DEBUG
+ INT32 m_max_sample; // largest sample value we've seen
+ INT32 m_clipped_samples; // total number of clipped samples
+ INT32 m_total_samples; // total number of samples
+#endif
+};
+
+
+// speaker device iterator
+typedef device_type_iterator<&device_creator<speaker_device>, speaker_device> speaker_device_iterator;
+
+
+#endif /* __SOUND_H__ */