81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
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#include "../project/project_internal.h"
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#include <math.h>
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#include <string.h>
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static size_t find_track(const xtc_project *p, uint64_t id)
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{
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size_t i;
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for (i = 0; i < p->track_count; ++i)
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if (p->tracks[i].id == id)
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return i;
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return SIZE_MAX;
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}
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xtc_result xtc_project_set_mix(xtc_project *p, uint64_t id, float gain, float pan, int mute,
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int solo)
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{
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size_t i;
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if (!p || !isfinite(gain) || gain < 0 || gain > 4 || !isfinite(pan) || pan < -1 || pan > 1 ||
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(mute != 0 && mute != 1) || (solo != 0 && solo != 1))
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return XTC_ERR_INVALID_ARGUMENT;
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i = find_track(p, id);
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if (i == SIZE_MAX)
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return XTC_ERR_NOT_FOUND;
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p->tracks[i].gain = gain;
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p->tracks[i].pan = pan;
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p->tracks[i].mute = mute;
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p->tracks[i].solo = solo;
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return XTC_OK;
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}
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xtc_result xtc_project_set_automation(xtc_project *p, const xtc_automation_point *a)
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{
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size_t i;
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if (!p || !a || !isfinite(a->value) || a->tick > XTC_PROJECT_MAX_TICK ||
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(a->parameter != XTC_AUTOMATION_GAIN && a->parameter != XTC_AUTOMATION_PAN) ||
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a->value < (a->parameter == XTC_AUTOMATION_GAIN ? 0 : -1) ||
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a->value > (a->parameter == XTC_AUTOMATION_GAIN ? 4 : 1))
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return XTC_ERR_INVALID_ARGUMENT;
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if (find_track(p, a->track_id) == SIZE_MAX)
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return XTC_ERR_NOT_FOUND;
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for (i = 0; i < p->automation_count; ++i)
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if (p->automation[i].track_id == a->track_id &&
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p->automation[i].parameter == a->parameter && p->automation[i].tick == a->tick)
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break;
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if (i == XTC_MAX_AUTOMATION_POINTS)
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return XTC_ERR_CAPACITY;
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if (i == p->automation_count)
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++p->automation_count;
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p->automation[i] = *a;
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return XTC_OK;
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}
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xtc_result xtc_project_remove_automation(xtc_project *p, uint64_t id,
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xtc_automation_parameter param, uint64_t tick)
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{
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size_t i;
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if (!p || (param != XTC_AUTOMATION_GAIN && param != XTC_AUTOMATION_PAN) ||
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tick > XTC_PROJECT_MAX_TICK)
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return XTC_ERR_INVALID_ARGUMENT;
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for (i = 0; i < p->automation_count; ++i)
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if (p->automation[i].track_id == id && p->automation[i].parameter == param &&
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p->automation[i].tick == tick)
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break;
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if (i == p->automation_count)
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return XTC_ERR_NOT_FOUND;
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memmove(p->automation + i, p->automation + i + 1,
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(--p->automation_count - i) * sizeof(*p->automation));
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return XTC_OK;
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}
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xtc_result xtc_project_automation_count(const xtc_project *p, size_t *n)
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{
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if (!p || !n)
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return XTC_ERR_INVALID_ARGUMENT;
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*n = p->automation_count;
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return XTC_OK;
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}
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xtc_result xtc_project_get_automation(const xtc_project *p, size_t i, xtc_automation_point *a)
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{
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if (!p || !a)
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return XTC_ERR_INVALID_ARGUMENT;
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if (i >= p->automation_count)
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return XTC_ERR_NOT_FOUND;
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*a = p->automation[i];
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return XTC_OK;
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}
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