diff options
Diffstat (limited to 'libsidplay2/sidplay-libs-2.1.0/builders/resid-builder/src/resid.cpp')
| -rw-r--r-- | libsidplay2/sidplay-libs-2.1.0/builders/resid-builder/src/resid.cpp | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/libsidplay2/sidplay-libs-2.1.0/builders/resid-builder/src/resid.cpp b/libsidplay2/sidplay-libs-2.1.0/builders/resid-builder/src/resid.cpp deleted file mode 100644 index 41cbdc39..00000000 --- a/libsidplay2/sidplay-libs-2.1.0/builders/resid-builder/src/resid.cpp +++ /dev/null @@ -1,200 +0,0 @@ -/*************************************************************************** - c64sid.h - ReSid Wrapper for redefining the - filter - ------------------- - begin : Fri Apr 4 2001 - copyright : (C) 2001 by Simon White - email : s_a_white@email.com - ***************************************************************************/ - -/*************************************************************************** - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - ***************************************************************************/ - -#include "config.h" - -#ifdef HAVE_EXCEPTIONS -# include <new> -#endif - -#include "resid.h" -#include "resid-emu.h" -#include <string.h> - -char ReSID::m_credit[]; - -ReSID::ReSID (sidbuilder *builder) -:sidemu(builder), - m_context(NULL), -#ifdef HAVE_EXCEPTIONS - m_sid(*(new(std::nothrow) RESID::SID)), -#else - m_sid(*(new RESID::SID)), -#endif - m_gain(100), - m_status(true), - m_locked(false) -{ - char *p = m_credit; - m_error = "N/A"; - - // Setup credits - sprintf (p, "ReSID V%s Engine:", VERSION); - p += strlen (p) + 1; - strcpy (p, "\t(C) 1999-2002 Simon White <sidplay2@yahoo.com>"); - p += strlen (p) + 1; - sprintf (p, "MOS6581 (SID) Emulation (ReSID V%s):", RESID::resid_version_string); - p += strlen (p) + 1; - sprintf (p, "\t(C) 1999-2002 Dag Lem <resid@nimrod.no>"); - p += strlen (p) + 1; - *p = '\0'; - - if (!&m_sid) - { - m_error = "RESID ERROR: Unable to create sid object"; - m_status = false; - return; - } - reset (0); -} - -bool ReSID::filter (const sid_filter_t *filter) -{ - RESID::fc_point fc[0x802]; - const RESID::fc_point *f0 = fc; - int points = 0; - - if (filter == NULL) - { // Select default filter - m_sid.fc_default (f0, points); - } - else - { // Make sure there are enough filter points and they are legal - points = filter->points; - if ((points < 2) || (points > 0x800)) - return false; - - { - const sid_fc_t fstart = {-1, 0}; - const sid_fc_t *fprev = &fstart, *fin = filter->cutoff; - RESID::fc_point *fout = fc; - // Last check, make sure they are list in numerical order - // for both axis - while (points-- > 0) - { - if ((*fprev)[0] >= (*fin)[0]) - return false; - fout++; - (*fout)[0] = (RESID::sound_sample) (*fin)[0]; - (*fout)[1] = (RESID::sound_sample) (*fin)[1]; - fprev = fin++; - } - // Updated ReSID interpolate requires we - // repeat the end points - (*(fout+1))[0] = (*fout)[0]; - (*(fout+1))[1] = (*fout)[1]; - fc[0][0] = fc[1][0]; - fc[0][1] = fc[1][1]; - points = filter->points + 2; - } - } - - // function from reSID - points--; - RESID::interpolate (f0, f0 + points, m_sid.fc_plotter (), 1.0); - return true; -} - -// Standard component options -void ReSID::reset (uint8_t volume) -{ - m_accessClk = 0; - m_sid.reset (); - m_sid.write (0x18, volume); -} - -uint8_t ReSID::read (uint_least8_t addr) -{ - event_clock_t cycles = m_context->getTime (m_accessClk); - m_accessClk += cycles; - if (cycles) - m_sid.clock (cycles); - return m_sid.read (addr); -} - -void ReSID::write (uint_least8_t addr, uint8_t data) -{ - event_clock_t cycles = m_context->getTime (m_accessClk); - m_accessClk += cycles; - if (cycles) - m_sid.clock (cycles); - m_sid.write (addr, data); -} - -int_least32_t ReSID::output (uint_least8_t bits) -{ - event_clock_t cycles = m_context->getTime (m_accessClk); - m_accessClk += cycles; - if (cycles) - m_sid.clock (cycles); - return m_sid.output (bits) * m_gain / 100; -} - -void ReSID::filter (bool enable) -{ - m_sid.enable_filter (enable); -} - -void ReSID::voice (uint_least8_t num, uint_least8_t volume, - bool mute) -{ // At this time only mute is supported - m_sid.mute (num, mute); -} - -void ReSID::gain (int_least8_t percent) -{ - // 0 to 99 is loss, 101 - 200 is gain - m_gain = percent; - m_gain += 100; - if (m_gain > 200) - m_gain = 200; -} - -void ReSID::sampling (uint_least32_t freq) -{ - m_sid.set_sampling_parameters (1000000, RESID::SAMPLE_FAST, freq); -} - -// Set execution environment and lock sid to it -bool ReSID::lock (c64env *env) -{ - if (env == NULL) - { - if (!m_locked) - return false; - m_locked = false; - m_context = NULL; - } - else - { - if (m_locked) - return false; - m_locked = true; - m_context = &env->context (); - } - return true; -} - -// Set the emulated SID model -void ReSID::model (sid2_model_t model) -{ - if (model == SID2_MOS8580) - m_sid.set_chip_model (RESID::MOS8580); - else - m_sid.set_chip_model (RESID::MOS6581); -} |