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#include "pke-at-common.hpp"
#include "pke-at-settings.hpp"
#include "pke/audio-types.hpp"
void pke_at_bpm_reset(uint8_t bpm) {
g_at.bpm.last = bpm;
g_at.bpm.target = bpm;
g_at.bpm.current = bpm;
g_at.bpm.lerp_delta = 0.f;
g_at.bpm.lerp_delta_duration = 0.f;
g_at.bpm.delta_per_beat = 60.f / (double)bpm;
g_at.bpm.delta_since_last_beat = BEEP_IMMEDIATELY_VAL;
g_at.mtrnm.beat = 0;
g_at.mtrnm.beats_per_bar = 4;
}
AssetHandle pke_at_audio_get_or_generate_sawtooth(double pitch_freq, double duration) {
uint32_t u;
uint32_t len;
float *bytes;
float phase;
float phase_increment;
pke_asset_details details{};
AssetHandle handle;
AssetKey key;
snprintf(key, AssetKeyLength, "saw%.5u;%.2f", (uint32_t)pitch_freq, duration);
fprintf(stdout, "sawtooth: %s%c\n", key, '\0');
handle = AM_GetHandle(key);
if (handle != AssetHandle_MAX) {
return handle;
}
len = std::ceil(PKE_AUDIO_BITRATE * duration);
bytes = pk_new_arr<float>(len, g_at.mem.bkt_transient);
if (bytes == nullptr) {
throw "[pke_at_audio_get_or_generate_sawtooth] failed to alloc";
}
phase = 0.0f;
phase_increment = pitch_freq / float(PKE_AUDIO_BITRATE);
for (u = 0; u < len; ++u) {
bytes[u] = 2.f * (phase - floor(phase + 0.5f));
phase += phase_increment;
if (phase >= 1.f) phase -= 1.f;
}
// TODO
// details.audio.
handle = AM_Register(key, PKE_ASSET_TYPE_AUDIO, bytes, len, 64, &details);
return handle;
}
int case_insensitive_equal(const char *lhs, const char *rhs) {
while (*lhs && *rhs) {
if (tolower((unsigned char)*lhs) != tolower((unsigned char)*rhs)) {
return 0;
}
lhs++;
rhs++;
}
return *lhs == *rhs;
}
PKE_AT_KEY_INDEX parse_key_from_string(const char *key) {
switch (key[0]) {
case 'c':
case 'C':
if (strlen(key) == 1 || key[1] != '#') {
return PKE_AT_KEY_INDEX_C;
}
if (key[1] == '#') {
return PKE_AT_KEY_INDEX_C_SHARP;
}
break;
case 'd':
case 'D':
if (strlen(key) == 1 || (key[1] != 'b' && key[1] != '#')) {
return PKE_AT_KEY_INDEX_D;
}
if (key[1] == 'b') {
return PKE_AT_KEY_INDEX_D_FLAT;
}
if (key[1] == '#') {
return PKE_AT_KEY_INDEX_D_SHARP;
}
break;
case 'e':
case 'E':
if (strlen(key) == 1 || key[1] != 'b') {
return PKE_AT_KEY_INDEX_E;
}
if (key[1] == 'b') {
return PKE_AT_KEY_INDEX_E_FLAT;
}
break;
case 'f':
case 'F':
if (strlen(key) == 1 || (key[1] != 'b' && key[1] != '#')) {
return PKE_AT_KEY_INDEX_F;
}
if (key[1] == '#') {
return PKE_AT_KEY_INDEX_F_SHARP;
}
break;
case 'g':
case 'G':
if (strlen(key) == 1 || (key[1] != 'b' && key[1] != '#')) {
return PKE_AT_KEY_INDEX_G;
}
if (key[1] == 'b') {
return PKE_AT_KEY_INDEX_G_FLAT;
}
if (key[1] == '#') {
return PKE_AT_KEY_INDEX_G_SHARP;
}
break;
case 'a':
case 'A':
if (strlen(key) == 1 || (key[1] != 'b' && key[1] != '#')) {
return PKE_AT_KEY_INDEX_A;
}
if (key[1] == 'b') {
return PKE_AT_KEY_INDEX_A_FLAT;
}
if (key[1] == '#') {
return PKE_AT_KEY_INDEX_A_SHARP;
}
break;
case 'b':
case 'B':
if (strlen(key) == 1 || key[1] != 'b') {
return PKE_AT_KEY_INDEX_B;
}
if (key[1] == 'b') {
return PKE_AT_KEY_INDEX_B_FLAT;
}
default:
break;
}
return PKE_AT_KEY_INDEX_NONE;
}
PKE_AT_SECTION_TYPE_INDEX parse_section_type_from_string(const char *section) {
if (case_insensitive_equal(section, "verse")) {
return PKE_AT_SECTION_TYPE_INDEX_VERSE;
}
if (case_insensitive_equal(section, "chorus")) {
return PKE_AT_SECTION_TYPE_INDEX_CHORUS;
}
if (case_insensitive_equal(section, "bridge")) {
return PKE_AT_SECTION_TYPE_INDEX_BRIDGE;
}
if (case_insensitive_equal(section, "intro")) {
return PKE_AT_SECTION_TYPE_INDEX_INTRO;
}
if (case_insensitive_equal(section, "outro")) {
return PKE_AT_SECTION_TYPE_INDEX_OUTRO;
}
if (case_insensitive_equal(section, "end")) {
return PKE_AT_SECTION_TYPE_INDEX_END;
}
if (case_insensitive_equal(section, "ending")) {
return PKE_AT_SECTION_TYPE_INDEX_ENDING;
}
if (case_insensitive_equal(section, "instrumental")) {
return PKE_AT_SECTION_TYPE_INDEX_INSTRUMENTAL;
}
if (case_insensitive_equal(section, "interlude")) {
return PKE_AT_SECTION_TYPE_INDEX_INTERLUDE;
}
if (case_insensitive_equal(section, "refrain")) {
return PKE_AT_SECTION_TYPE_INDEX_REFRAIN;
}
if (case_insensitive_equal(section, "tag")) {
return PKE_AT_SECTION_TYPE_INDEX_TAG;
}
return PKE_AT_SECTION_TYPE_INDEX_NONE;
}
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