xtc/tests/unit/test_control.c

#include "xtc/xtc_midi.h"
#include "xtc/xtc_control.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 *mapped = NULL, *disabled = NULL;
        xtc_parameter_state state;
        xtc_parameter_key key = {XTC_PARAMETER_LIVE,2,2};
        unsigned int bindings[3] = {1,74,11};
        xtc_midi_event remapped[9];
        float actual[400], right[400];
        unsigned char message[3] = {0xb2,1,0};
        assert(xtc_midi_decode(message,3,0,&decoded) == XTC_OK && decoded.type == XTC_MIDI_CONTROL);
        message[1] = 120;
        assert(xtc_midi_decode(message,3,0,&decoded) == XTC_OK && decoded.type == XTC_MIDI_ALL_OFF);
        assert(xtc_project_parameter(project,key,48000,&state) == XTC_OK && !state.automated &&
            (state.flags & XTC_PLUGIN_TOGGLED) && state.value == 0);
        assert(xtc_project_automate(project,key,48000,0,1,1,0) == XTC_ERR_UNSUPPORTED);
        assert(xtc_project_set_control_map(project,2,bindings) == XTC_OK);
        assert(xtc_midi_plan_create(project,48000,&mapped) == XTC_OK);
        for (i = 0; i < 8; ++i) {
            remapped[i+(i ? 1 : 0)] = events[i];
            if (events[i].type == XTC_MIDI_CONTROL)
                remapped[i+1].pitch = events[i].pitch == 7 ? 1 : events[i].pitch == 10 ? 74 : 11;
        }
        // Former CC7 binding is ignored, not an additional volume binding.
        remapped[1] = (xtc_midi_event){1,XTC_MIDI_CONTROL,2,7,0};
        assert(xtc_midi_plan_render(mapped,0,remapped,9,actual,400) == XTC_OK);
        for (i = 0; i < 400; ++i) assert(actual[i] == whole[i]);
        {
            const xtc_midi_event pan[] = {{0,XTC_MIDI_NOTE_ON,2,69,127},{0,XTC_MIDI_CONTROL,2,74,127}};
            xtc_midi_plan_reset(mapped);
            assert(xtc_midi_plan_render_stereo(mapped,0,pan,2,actual,right,400) == XTC_OK);
            assert(actual[300] == 0 && right[300] != 0);
        }
        // Mutating the model does not change an already prepared mapping.
        bindings[0] = bindings[1] = bindings[2] = XTC_CC_DISABLED;
        assert(xtc_project_set_control_map(project,2,bindings) == XTC_OK);
        xtc_midi_plan_reset(mapped);
        assert(xtc_midi_plan_render(mapped,0,remapped,9,actual,400) == XTC_OK);
        for (i = 0; i < 400; ++i) assert(actual[i] == whole[i]);
        assert(xtc_midi_plan_create(project,48000,&disabled) == XTC_OK);
        {
            const xtc_midi_event unbound[] = {{0,XTC_MIDI_NOTE_ON,2,69,127},{3,XTC_MIDI_CONTROL,2,1,0}};
            assert(xtc_midi_plan_render(disabled,0,unbound,2,actual,400) == XTC_OK);
            assert(actual[300] != 0); // No mapped volume ramp reaches zero.
        }
        xtc_midi_plan_destroy(mapped); xtc_midi_plan_destroy(disabled);
    }
    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 default/remapped/disabled controllers, immutable maps, sustain, retrigger, note-off and block partition checks passed.");
    return 0;
}