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Diffstat (limited to 'trunk/src/emu/speaker.h')
-rw-r--r-- | trunk/src/emu/speaker.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/trunk/src/emu/speaker.h b/trunk/src/emu/speaker.h new file mode 100644 index 00000000000..cf0b2f04130 --- /dev/null +++ b/trunk/src/emu/speaker.h @@ -0,0 +1,121 @@ +/*************************************************************************** + + 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__ */ |