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Phase 16: persist sample-timed effect automation and add expressive MIDI controls

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This commit is contained in:
Johannes Findeisen 2026-10-27 06:25:30 +01:00
commit 7fac0a4f6a
23 changed files with 374 additions and 39 deletions
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tests/unit/test_control.c Normal file
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#include "xtc/xtc_midi.h"
#include <assert.h>
#include <math.h>
#include <stdio.h>
int main(void)
{
xtc_project *project = NULL; xtc_midi_plan *a = NULL, *b = NULL;
float whole[400], split[400]; size_t i, j, cursor = 0;
xtc_midi_event decoded;
const unsigned char cc[] = {0xb2,7,0};
xtc_midi_event events[] = {
{0,XTC_MIDI_NOTE_ON,2,69,127}, {3,XTC_MIDI_CONTROL,2,64,127},
{5,XTC_MIDI_NOTE_OFF,2,69,0}, {9,XTC_MIDI_NOTE_ON,2,69,127},
{10,XTC_MIDI_CONTROL,2,7,0}, {11,XTC_MIDI_CONTROL,2,10,127},
{260,XTC_MIDI_NOTE_OFF,2,69,0}, {270,XTC_MIDI_CONTROL,2,64,0}};
assert(xtc_midi_decode(cc,3,10,&decoded) == XTC_OK && decoded.type == XTC_MIDI_CONTROL && decoded.pitch == 7);
assert(xtc_project_create(&project) == XTC_OK);
assert(xtc_midi_plan_create(project,48000,&a) == XTC_OK);
assert(xtc_midi_plan_create(project,48000,&b) == XTC_OK);
assert(xtc_midi_plan_render(a,0,events,8,whole,400) == XTC_OK);
while (cursor < 400) {
xtc_midi_event local[8]; size_t count = 0, n = 13;
if (n > 400-cursor) n = 400-cursor;
for (j = 0; j < 8; ++j) if (events[j].offset >= cursor && events[j].offset < cursor+n) {
local[count] = events[j]; local[count++].offset -= (unsigned int)cursor;
}
assert(xtc_midi_plan_render(b,cursor,local,count,split+cursor,n) == XTC_OK); cursor += n;
}
for (i = 0; i < 400; ++i) assert(whole[i] == split[i]);
assert(whole[6] != 0); /* Sustain retains the released note. */
for (i = 250; i < 400; ++i) assert(whole[i] == 0); /* CC7 ramp reaches zero in 240 samples. */
xtc_midi_plan_reset(a);
assert(xtc_midi_plan_render(a,400,NULL,0,whole,400) == XTC_OK);
for (i = 0; i < 400; ++i) assert(whole[i] == 0);
xtc_midi_plan_destroy(a); xtc_midi_plan_destroy(b); xtc_project_destroy(project);
puts("Sample-timed CC7/CC10/sustain, retrigger, note-off and block partition checks passed.");
return 0;
}