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Diffstat (limited to 'trunk/src/emu/disound.h')
-rw-r--r-- | trunk/src/emu/disound.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/trunk/src/emu/disound.h b/trunk/src/emu/disound.h new file mode 100644 index 00000000000..6eae08c3076 --- /dev/null +++ b/trunk/src/emu/disound.h @@ -0,0 +1,150 @@ +/*************************************************************************** + + disound.h + + Device sound interfaces. + +**************************************************************************** + + 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 __DISOUND_H__ +#define __DISOUND_H__ + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +const int ALL_OUTPUTS = 65535; // special value indicating all outputs for the current chip +const int AUTO_ALLOC_INPUT = 65535; + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_SOUND_ADD(_tag, _type, _clock) \ + MCFG_DEVICE_ADD(_tag, _type, _clock) \ + +#define MCFG_SOUND_MODIFY(_tag) \ + MCFG_DEVICE_MODIFY(_tag) + +#define MCFG_SOUND_CLOCK(_clock) \ + MCFG_DEVICE_CLOCK(_clock) + +#define MCFG_SOUND_REPLACE(_tag, _type, _clock) \ + MCFG_DEVICE_REPLACE(_tag, _type, _clock) + +#define MCFG_SOUND_CONFIG(_config) \ + MCFG_DEVICE_CONFIG(_config) + +#define MCFG_SOUND_ROUTE_EX(_output, _target, _gain, _input) \ + device_sound_interface::static_add_route(*device, _output, _target, _gain, _input); \ + +#define MCFG_SOUND_ROUTE(_output, _target, _gain) \ + MCFG_SOUND_ROUTE_EX(_output, _target, _gain, AUTO_ALLOC_INPUT) + +#define MCFG_SOUND_ROUTES_RESET() \ + device_sound_interface::static_reset_routes(*device); \ + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class sound_stream; + + +// ======================> device_sound_interface + +class device_sound_interface : public device_interface +{ +public: + class sound_route + { + public: + sound_route(int output, int input, float gain, const char *target); + + const sound_route *next() const { return m_next; } + + sound_route * m_next; // pointer to next route + UINT32 m_output; // output index, or ALL_OUTPUTS + UINT32 m_input; // target input index + float m_gain; // gain + astring m_target; // target tag + }; + + // construction/destruction + device_sound_interface(const machine_config &mconfig, device_t &device); + virtual ~device_sound_interface(); + + // configuration access + const sound_route *first_route() const { return m_route_list.first(); } + + // static inline configuration helpers + static void static_add_route(device_t &device, UINT32 output, const char *target, double gain, UINT32 input = AUTO_ALLOC_INPUT); + static void static_reset_routes(device_t &device); + + // sound stream update overrides + virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) = 0; + + // helpers + int inputs() const; + int outputs() const; + sound_stream *input_to_stream_input(int inputnum, int &stream_inputnum); + sound_stream *output_to_stream_output(int outputnum, int &stream_outputnum); + void set_output_gain(int outputnum, float gain); + +protected: + // optional operation overrides + virtual bool interface_validity_check(emu_options &options, const game_driver &driver) const; + virtual void interface_pre_start(); + virtual void interface_post_start(); + virtual void interface_pre_reset(); + + // internal state + simple_list<sound_route> m_route_list; // list of sound routes + int m_outputs; // number of outputs from this instance + int m_auto_allocated_inputs; // number of auto-allocated inputs targeting us +}; + + +#endif /* __DISOUND_H__ */ |