diff options
Diffstat (limited to 'tran/instrsaxfreq.c')
| -rw-r--r-- | tran/instrsaxfreq.c | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/tran/instrsaxfreq.c b/tran/instrsaxfreq.c new file mode 100644 index 0000000..284dd7f --- /dev/null +++ b/tran/instrsaxfreq.c @@ -0,0 +1,446 @@ +#include "stdio.h" +#ifndef mips +#include "stdlib.h" +#endif +#include "xlisp.h" +#include "sound.h" + +#include "falloc.h" +#include "cext.h" +#include "instrsaxfreq.h" + +void sax_freq_free(); + + +typedef struct sax_freq_susp_struct { + snd_susp_node susp; + long terminate_cnt; + sound_type breath_env; + long breath_env_cnt; + sample_block_values_type breath_env_ptr; + sound_type freq_env; + long freq_env_cnt; + sample_block_values_type freq_env_ptr; + + struct instr *sax; + int temp_ret_value; + double frequency; +} sax_freq_susp_node, *sax_freq_susp_type; + + + #include "instr.h" + + +void sax_freq_nn_fetch(register sax_freq_susp_type susp, snd_list_type snd_list) +{ + int cnt = 0; /* how many samples computed */ + int togo; + int n; + sample_block_type out; + register sample_block_values_type out_ptr; + + register sample_block_values_type out_ptr_reg; + + register struct instr * sax_reg; + register double frequency_reg; + register sample_block_values_type freq_env_ptr_reg; + register sample_block_values_type breath_env_ptr_reg; + falloc_sample_block(out, "sax_freq_nn_fetch"); + out_ptr = out->samples; + snd_list->block = out; + + while (cnt < max_sample_block_len) { /* outer loop */ + /* first compute how many samples to generate in inner loop: */ + /* don't overflow the output sample block: */ + togo = max_sample_block_len - cnt; + + /* don't run past the breath_env input sample block: */ + susp_check_term_samples(breath_env, breath_env_ptr, breath_env_cnt); + togo = min(togo, susp->breath_env_cnt); + + /* don't run past the freq_env input sample block: */ + susp_check_samples(freq_env, freq_env_ptr, freq_env_cnt); + togo = min(togo, susp->freq_env_cnt); + + /* don't run past terminate time */ + if (susp->terminate_cnt != UNKNOWN && + susp->terminate_cnt <= susp->susp.current + cnt + togo) { + togo = susp->terminate_cnt - (susp->susp.current + cnt); + if (togo == 0) break; + } + + n = togo; + sax_reg = susp->sax; + frequency_reg = susp->frequency; + freq_env_ptr_reg = susp->freq_env_ptr; + breath_env_ptr_reg = susp->breath_env_ptr; + out_ptr_reg = out_ptr; + if (n) do { /* the inner sample computation loop */ + + controlChange(sax_reg, 128, SAX_CONTROL_CHANGE_CONST * *breath_env_ptr_reg++); + setFrequency(sax_reg, frequency_reg + *freq_env_ptr_reg++); + *out_ptr_reg++ = (sample_type) tick(sax_reg); + } while (--n); /* inner loop */ + + susp->sax = sax_reg; + /* using freq_env_ptr_reg is a bad idea on RS/6000: */ + susp->freq_env_ptr += togo; + /* using breath_env_ptr_reg is a bad idea on RS/6000: */ + susp->breath_env_ptr += togo; + out_ptr += togo; + susp_took(breath_env_cnt, togo); + susp_took(freq_env_cnt, togo); + cnt += togo; + } /* outer loop */ + + /* test for termination */ + if (togo == 0 && cnt == 0) { + snd_list_terminate(snd_list); + } else { + snd_list->block_len = cnt; + susp->susp.current += cnt; + } +} /* sax_freq_nn_fetch */ + + +void sax_freq_ns_fetch(register sax_freq_susp_type susp, snd_list_type snd_list) +{ + int cnt = 0; /* how many samples computed */ + int togo; + int n; + sample_block_type out; + register sample_block_values_type out_ptr; + + register sample_block_values_type out_ptr_reg; + + register struct instr * sax_reg; + register double frequency_reg; + register sample_type freq_env_scale_reg = susp->freq_env->scale; + register sample_block_values_type freq_env_ptr_reg; + register sample_block_values_type breath_env_ptr_reg; + falloc_sample_block(out, "sax_freq_ns_fetch"); + out_ptr = out->samples; + snd_list->block = out; + + while (cnt < max_sample_block_len) { /* outer loop */ + /* first compute how many samples to generate in inner loop: */ + /* don't overflow the output sample block: */ + togo = max_sample_block_len - cnt; + + /* don't run past the breath_env input sample block: */ + susp_check_term_samples(breath_env, breath_env_ptr, breath_env_cnt); + togo = min(togo, susp->breath_env_cnt); + + /* don't run past the freq_env input sample block: */ + susp_check_samples(freq_env, freq_env_ptr, freq_env_cnt); + togo = min(togo, susp->freq_env_cnt); + + /* don't run past terminate time */ + if (susp->terminate_cnt != UNKNOWN && + susp->terminate_cnt <= susp->susp.current + cnt + togo) { + togo = susp->terminate_cnt - (susp->susp.current + cnt); + if (togo == 0) break; + } + + n = togo; + sax_reg = susp->sax; + frequency_reg = susp->frequency; + freq_env_ptr_reg = susp->freq_env_ptr; + breath_env_ptr_reg = susp->breath_env_ptr; + out_ptr_reg = out_ptr; + if (n) do { /* the inner sample computation loop */ + + controlChange(sax_reg, 128, SAX_CONTROL_CHANGE_CONST * *breath_env_ptr_reg++); + setFrequency(sax_reg, frequency_reg + (freq_env_scale_reg * *freq_env_ptr_reg++)); + *out_ptr_reg++ = (sample_type) tick(sax_reg); + } while (--n); /* inner loop */ + + susp->sax = sax_reg; + /* using freq_env_ptr_reg is a bad idea on RS/6000: */ + susp->freq_env_ptr += togo; + /* using breath_env_ptr_reg is a bad idea on RS/6000: */ + susp->breath_env_ptr += togo; + out_ptr += togo; + susp_took(breath_env_cnt, togo); + susp_took(freq_env_cnt, togo); + cnt += togo; + } /* outer loop */ + + /* test for termination */ + if (togo == 0 && cnt == 0) { + snd_list_terminate(snd_list); + } else { + snd_list->block_len = cnt; + susp->susp.current += cnt; + } +} /* sax_freq_ns_fetch */ + + +void sax_freq_sn_fetch(register sax_freq_susp_type susp, snd_list_type snd_list) +{ + int cnt = 0; /* how many samples computed */ + int togo; + int n; + sample_block_type out; + register sample_block_values_type out_ptr; + + register sample_block_values_type out_ptr_reg; + + register struct instr * sax_reg; + register double frequency_reg; + register sample_block_values_type freq_env_ptr_reg; + register sample_type breath_env_scale_reg = susp->breath_env->scale; + register sample_block_values_type breath_env_ptr_reg; + falloc_sample_block(out, "sax_freq_sn_fetch"); + out_ptr = out->samples; + snd_list->block = out; + + while (cnt < max_sample_block_len) { /* outer loop */ + /* first compute how many samples to generate in inner loop: */ + /* don't overflow the output sample block: */ + togo = max_sample_block_len - cnt; + + /* don't run past the breath_env input sample block: */ + susp_check_term_samples(breath_env, breath_env_ptr, breath_env_cnt); + togo = min(togo, susp->breath_env_cnt); + + /* don't run past the freq_env input sample block: */ + susp_check_samples(freq_env, freq_env_ptr, freq_env_cnt); + togo = min(togo, susp->freq_env_cnt); + + /* don't run past terminate time */ + if (susp->terminate_cnt != UNKNOWN && + susp->terminate_cnt <= susp->susp.current + cnt + togo) { + togo = susp->terminate_cnt - (susp->susp.current + cnt); + if (togo == 0) break; + } + + n = togo; + sax_reg = susp->sax; + frequency_reg = susp->frequency; + freq_env_ptr_reg = susp->freq_env_ptr; + breath_env_ptr_reg = susp->breath_env_ptr; + out_ptr_reg = out_ptr; + if (n) do { /* the inner sample computation loop */ + + controlChange(sax_reg, 128, SAX_CONTROL_CHANGE_CONST * (breath_env_scale_reg * *breath_env_ptr_reg++)); + setFrequency(sax_reg, frequency_reg + *freq_env_ptr_reg++); + *out_ptr_reg++ = (sample_type) tick(sax_reg); + } while (--n); /* inner loop */ + + susp->sax = sax_reg; + /* using freq_env_ptr_reg is a bad idea on RS/6000: */ + susp->freq_env_ptr += togo; + /* using breath_env_ptr_reg is a bad idea on RS/6000: */ + susp->breath_env_ptr += togo; + out_ptr += togo; + susp_took(breath_env_cnt, togo); + susp_took(freq_env_cnt, togo); + cnt += togo; + } /* outer loop */ + + /* test for termination */ + if (togo == 0 && cnt == 0) { + snd_list_terminate(snd_list); + } else { + snd_list->block_len = cnt; + susp->susp.current += cnt; + } +} /* sax_freq_sn_fetch */ + + +void sax_freq_ss_fetch(register sax_freq_susp_type susp, snd_list_type snd_list) +{ + int cnt = 0; /* how many samples computed */ + int togo; + int n; + sample_block_type out; + register sample_block_values_type out_ptr; + + register sample_block_values_type out_ptr_reg; + + register struct instr * sax_reg; + register double frequency_reg; + register sample_type freq_env_scale_reg = susp->freq_env->scale; + register sample_block_values_type freq_env_ptr_reg; + register sample_type breath_env_scale_reg = susp->breath_env->scale; + register sample_block_values_type breath_env_ptr_reg; + falloc_sample_block(out, "sax_freq_ss_fetch"); + out_ptr = out->samples; + snd_list->block = out; + + while (cnt < max_sample_block_len) { /* outer loop */ + /* first compute how many samples to generate in inner loop: */ + /* don't overflow the output sample block: */ + togo = max_sample_block_len - cnt; + + /* don't run past the breath_env input sample block: */ + susp_check_term_samples(breath_env, breath_env_ptr, breath_env_cnt); + togo = min(togo, susp->breath_env_cnt); + + /* don't run past the freq_env input sample block: */ + susp_check_samples(freq_env, freq_env_ptr, freq_env_cnt); + togo = min(togo, susp->freq_env_cnt); + + /* don't run past terminate time */ + if (susp->terminate_cnt != UNKNOWN && + susp->terminate_cnt <= susp->susp.current + cnt + togo) { + togo = susp->terminate_cnt - (susp->susp.current + cnt); + if (togo == 0) break; + } + + n = togo; + sax_reg = susp->sax; + frequency_reg = susp->frequency; + freq_env_ptr_reg = susp->freq_env_ptr; + breath_env_ptr_reg = susp->breath_env_ptr; + out_ptr_reg = out_ptr; + if (n) do { /* the inner sample computation loop */ + + controlChange(sax_reg, 128, SAX_CONTROL_CHANGE_CONST * (breath_env_scale_reg * *breath_env_ptr_reg++)); + setFrequency(sax_reg, frequency_reg + (freq_env_scale_reg * *freq_env_ptr_reg++)); + *out_ptr_reg++ = (sample_type) tick(sax_reg); + } while (--n); /* inner loop */ + + susp->sax = sax_reg; + /* using freq_env_ptr_reg is a bad idea on RS/6000: */ + susp->freq_env_ptr += togo; + /* using breath_env_ptr_reg is a bad idea on RS/6000: */ + susp->breath_env_ptr += togo; + out_ptr += togo; + susp_took(breath_env_cnt, togo); + susp_took(freq_env_cnt, togo); + cnt += togo; + } /* outer loop */ + + /* test for termination */ + if (togo == 0 && cnt == 0) { + snd_list_terminate(snd_list); + } else { + snd_list->block_len = cnt; + susp->susp.current += cnt; + } +} /* sax_freq_ss_fetch */ + + +void sax_freq_toss_fetch(susp, snd_list) + register sax_freq_susp_type susp; + snd_list_type snd_list; +{ + long final_count = susp->susp.toss_cnt; + time_type final_time = susp->susp.t0; + long n; + + /* fetch samples from breath_env up to final_time for this block of zeros */ + while ((round((final_time - susp->breath_env->t0) * susp->breath_env->sr)) >= + susp->breath_env->current) + susp_get_samples(breath_env, breath_env_ptr, breath_env_cnt); + /* fetch samples from freq_env up to final_time for this block of zeros */ + while ((round((final_time - susp->freq_env->t0) * susp->freq_env->sr)) >= + susp->freq_env->current) + susp_get_samples(freq_env, freq_env_ptr, freq_env_cnt); + /* convert to normal processing when we hit final_count */ + /* we want each signal positioned at final_time */ + n = round((final_time - susp->breath_env->t0) * susp->breath_env->sr - + (susp->breath_env->current - susp->breath_env_cnt)); + susp->breath_env_ptr += n; + susp_took(breath_env_cnt, n); + n = round((final_time - susp->freq_env->t0) * susp->freq_env->sr - + (susp->freq_env->current - susp->freq_env_cnt)); + susp->freq_env_ptr += n; + susp_took(freq_env_cnt, n); + susp->susp.fetch = susp->susp.keep_fetch; + (*(susp->susp.fetch))(susp, snd_list); +} + + +void sax_freq_mark(sax_freq_susp_type susp) +{ + sound_xlmark(susp->breath_env); + sound_xlmark(susp->freq_env); +} + + +void sax_freq_free(sax_freq_susp_type susp) +{ + + deleteInstrument(susp->sax); + sound_unref(susp->breath_env); + sound_unref(susp->freq_env); + ffree_generic(susp, sizeof(sax_freq_susp_node), "sax_freq_free"); +} + + +void sax_freq_print_tree(sax_freq_susp_type susp, int n) +{ + indent(n); + stdputstr("breath_env:"); + sound_print_tree_1(susp->breath_env, n); + + indent(n); + stdputstr("freq_env:"); + sound_print_tree_1(susp->freq_env, n); +} + + +sound_type snd_make_sax_freq(double freq, sound_type breath_env, sound_type freq_env, rate_type sr) +{ + register sax_freq_susp_type susp; + /* sr specified as input parameter */ + time_type t0 = breath_env->t0; + int interp_desc = 0; + sample_type scale_factor = 1.0F; + time_type t0_min = t0; + falloc_generic(susp, sax_freq_susp_node, "snd_make_sax_freq"); + susp->sax = initInstrument(SAXOFONY, round(sr)); + controlChange(susp->sax, 1, 0.0);; + susp->temp_ret_value = noteOn(susp->sax, freq, 1.0); + susp->frequency = freq; + + /* select a susp fn based on sample rates */ + interp_desc = (interp_desc << 2) + interp_style(breath_env, sr); + interp_desc = (interp_desc << 2) + interp_style(freq_env, sr); + switch (interp_desc) { + case INTERP_nn: susp->susp.fetch = sax_freq_nn_fetch; break; + case INTERP_ns: susp->susp.fetch = sax_freq_ns_fetch; break; + case INTERP_sn: susp->susp.fetch = sax_freq_sn_fetch; break; + case INTERP_ss: susp->susp.fetch = sax_freq_ss_fetch; break; + default: snd_badsr(); break; + } + + susp->terminate_cnt = UNKNOWN; + /* handle unequal start times, if any */ + if (t0 < breath_env->t0) sound_prepend_zeros(breath_env, t0); + if (t0 < freq_env->t0) sound_prepend_zeros(freq_env, t0); + /* minimum start time over all inputs: */ + t0_min = min(breath_env->t0, min(freq_env->t0, t0)); + /* how many samples to toss before t0: */ + susp->susp.toss_cnt = (long) ((t0 - t0_min) * sr + 0.5); + if (susp->susp.toss_cnt > 0) { + susp->susp.keep_fetch = susp->susp.fetch; + susp->susp.fetch = sax_freq_toss_fetch; + } + + /* initialize susp state */ + susp->susp.free = sax_freq_free; + susp->susp.sr = sr; + susp->susp.t0 = t0; + susp->susp.mark = sax_freq_mark; + susp->susp.print_tree = sax_freq_print_tree; + susp->susp.name = "sax_freq"; + susp->susp.log_stop_cnt = UNKNOWN; + susp->susp.current = 0; + susp->breath_env = breath_env; + susp->breath_env_cnt = 0; + susp->freq_env = freq_env; + susp->freq_env_cnt = 0; + return sound_create((snd_susp_type)susp, t0, sr, scale_factor); +} + + +sound_type snd_sax_freq(double freq, sound_type breath_env, sound_type freq_env, rate_type sr) +{ + sound_type breath_env_copy = sound_copy(breath_env); + sound_type freq_env_copy = sound_copy(freq_env); + return snd_make_sax_freq(freq, breath_env_copy, freq_env_copy, sr); +} |