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feat: load/save state from number hotkeys

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klemek
2025-11-14 11:02:21 +01:00
parent f04fe1f5c1
commit 4ddb5241b4
11 changed files with 265 additions and 199 deletions
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.gitignore
+1 -1
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@@ -24,6 +24,6 @@ pkg
forge-*
confdeps.*
conftest.*
forge_saved_state.txt
*.txt
error.glsl
draft/
DEVELOPMENT.md
+2 -1
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@@ -120,7 +120,8 @@ make -f Makefile.dev release-arch
- [ ] Extra features
- [x] `--auto-random-cycle=4`
- [x] Arrows (up-down: bpm / left-right: cycle)
- [ ] Save states (numkey: load / shift + numkey: save)
- [x] Save states (numkey: load / shift + numkey: save)
- [ ] (clean) static functions at top of files
- [ ] Configurable key codes
- [ ] Key codes as inputs
- [ ] Mouse position and scroll as inputs
README.md
+3 -2
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@@ -166,11 +166,13 @@ When running, the following hotkeys are available:
| <kbd>A</kbd> | Auto Random mode On/Off |
| <kbd>&larr;</kbd> / <kbd>&rarr;</kbd> | Auto Random Cycle -/+ 1 |
| <kbd>&uarr;</kbd> / <kbd>&darr;</kbd> | BPM +/- 1 |
| <kbd>0</kbd>-<kbd>9</kbd> | Load state 0 to 9 |
| <kbd>Shift</kbd> + <kbd>0</kbd>-<kbd>9</kbd> | Save state 0 to 9 |
### CLI arguments
```txt
usage: forge [-h] [-v] [-p=PROJECT_PATH] [-c=CFG_FILE] [-hr] [-s=SCREEN] [-m=SCREEN] [-mo] [-w] [-t=TEMPO] [-d] [-ar / -nar] [-arc=CYCLES] [-v=FILE] [-vs=SIZE] [-is=SIZE] [-sf=STATE_PATH] [-ls / -nls] [-ss / -nss] [-tm] [-tf]
usage: forge [-h] [-v] [-p=PROJECT_PATH] [-c=CFG_FILE] [-hr] [-s=SCREEN] [-m=SCREEN] [-mo] [-w] [-t=TEMPO] [-d] [-ar / -nar] [-arc=CYCLES] [-v=FILE] [-vs=SIZE] [-is=SIZE] [-ls / -nls] [-ss / -nss] [-tm] [-tf]
Fusion Of Real-time Generative Effects.
@@ -192,7 +194,6 @@ options:
-v, --video-in path to video capture device (multiple allowed)
-vs, --video-size video capture desired height (default: internal texture height)
-is, --internal-size internal texture height (default: 720)
-sf, --state-file saved state file (default: forge_saved_state.txt)
-ls, --load-state load saved state (default)
-nls, --no-load-state do not load saved state
-ss, --save-state save state (default)
default/forge_project.cfg
+6
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@@ -264,3 +264,9 @@ MIDI_3_1_Z=
MIDI_3_2_X=0
MIDI_3_2_Y=16
MIDI_3_2_Z=
# =====
# OTHER
# =====
SAVE_FILE_PREFIX=forge_default_save
src/args.c
-6
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@@ -33,7 +33,6 @@ static void print_help(int status_code) {
"[-v=FILE] "
"[-vs=SIZE] "
"[-is=SIZE] "
"[-sf=STATE_PATH] "
"[-ls / -nls] "
"[-ss / -nss] "
"[-tm] "
@@ -63,8 +62,6 @@ static void print_help(int status_code) {
" -vs, --video-size video capture desired height (default: "
"internal texture height)\n"
" -is, --internal-size internal texture height (default: 720)\n"
" -sf, --state-file saved state file (default: "
"forge_saved_state.txt)\n"
" -ls, --load-state load saved state (default)\n"
" -nls, --no-load-state do not load saved state\n"
" -ss, --save-state save state (default)\n"
@@ -131,7 +128,6 @@ void args_parse(Parameters *params, int argc, char **argv) {
params->video_in.length = 0;
params->video_size = 0;
params->internal_size = 720;
strlcpy(params->state_file, "forge_saved_state.txt", STR_LEN);
params->load_state = true;
params->save_state = true;
params->trace_midi = false;
@@ -194,8 +190,6 @@ void args_parse(Parameters *params, int argc, char **argv) {
if (params->internal_size == 0) {
invalid_value(arg, value);
}
} else if (is_arg(arg, "-sf") || is_arg(arg, "--state-file")) {
strlcpy(params->state_file, value, STR_LEN);
} else if (is_arg(arg, "-ls") || is_arg(arg, "--load-state")) {
params->load_state = true;
} else if (is_arg(arg, "-nls") || is_arg(arg, "--no-load-state")) {
src/config_file.c
+3
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@@ -75,9 +75,12 @@ void config_file_read(ConfigFile *config, const char *path) {
file_read(&file, path);
if (file.error) {
config->error = true;
return;
}
config->error = false;
line = strtok_r(file.content, "\n", &rest);
while (line != NULL) {
src/forge.c
+2 -3
View File
@@ -59,8 +59,7 @@ static void compute_fps(bool trace_fps) {
static void init_context(const Parameters *params, unsigned int in_count) {
state_init(context, &project.state_config, params->demo, params->auto_random,
params->auto_random_cycle, params->base_tempo, params->state_file,
params->load_state);
params->auto_random_cycle, params->base_tempo, params->load_state);
context->monitor = params->monitor;
@@ -247,7 +246,7 @@ void forge_run(const Parameters *params) {
context->stop = true;
if (params->save_state) {
state_save(context, &project.state_config, params->state_file);
state_save(context, &project.state_config);
}
shaders_free(&program);
src/midi.c
+4
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@@ -21,6 +21,10 @@ void midi_open(MidiDevice *device, const char *name) {
void midi_write(const MidiDevice *device, unsigned char code,
unsigned char value) {
if (device->error) {
return;
}
unsigned char buffer[3];
buffer[0] = 0xB0;
src/state.c
+239 -181
View File
@@ -12,6 +12,232 @@
#include "state.h"
#include "tempo.h"
static void safe_midi_write(const MidiDevice *midi, unsigned int code,
unsigned char value) {
if (code != UNSET_MIDI_CODE) {
midi_write(midi, code, value);
}
}
static void update_page(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int page_item_min;
unsigned int page_item_max;
// SHOW PAGE
for (unsigned int i = 0; i < state_config->select_page_codes.length; i++) {
safe_midi_write(midi, state_config->select_page_codes.values[i],
i == context->page ? MIDI_MAX : 0);
}
// SHOW PAGE ITEM
page_item_min = state_config->select_item_codes.length * context->page;
page_item_max = page_item_min + state_config->select_item_codes.length;
if (context->state.values[context->selected] >= page_item_min &&
context->state.values[context->selected] < page_item_max) {
for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
safe_midi_write(midi, state_config->select_item_codes.values[i],
i == context->state.values[context->selected] -
page_item_min
? MIDI_MAX
: 0);
}
} else {
for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
safe_midi_write(midi, state_config->select_item_codes.values[i], 0);
}
}
}
static void update_active(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int k;
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
for (unsigned int j = 0; j < state_config->midi_active_counts.values[i];
j++) {
k = state_config->midi_active_offsets.values[i] + j;
safe_midi_write(midi, state_config->midi_active_codes.values[k],
context->active[i] == j ? MIDI_MAX : 0);
}
}
}
static void update_values(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int j;
unsigned int k;
unsigned int part;
for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
j = i / 3;
part = arr_uint_remap_index(state_config->midi_offsets, &j);
k = state_config->values_offsets.values[part] +
context->active[part] * state_config->midi_counts.values[part] + j;
safe_midi_write(midi, state_config->midi_codes.values[i],
context->values[k][i % 3] * MIDI_MAX);
}
}
static void reset(SharedContext *context) {
memset(context->values, 0, sizeof(context->values));
memset(context->state.values, 0, sizeof(context->state.values));
}
static void randomize(SharedContext *context, const StateConfig *state_config) {
unsigned int j;
unsigned int l;
unsigned int part;
for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
j = i / 3;
part = arr_uint_remap_index(state_config->midi_offsets, &j);
for (unsigned int k = 0; k < state_config->midi_active_counts.values[part];
k++) {
l = state_config->values_offsets.values[part] +
k * state_config->midi_counts.values[part] + j;
if (arr_uint_index_of(state_config->fader_codes,
state_config->midi_codes.values[i]) !=
ARRAY_NOT_FOUND) {
context->values[l][i % 3] = (float)rand_uint(MIDI_MAX + 1) / MIDI_MAX;
} else {
context->values[l][i % 3] = rand_uint(2) == 1 ? 1 : 0;
}
}
}
for (unsigned int i = 0; i < context->state.length; i++) {
context->state.values[i] = rand_uint(state_config->state_max);
}
}
static void load_from_file(SharedContext *context,
const StateConfig *state_config, char *state_file) {
ConfigFile saved_state;
char key[STR_LEN];
config_file_read(&saved_state, state_file);
if (saved_state.error) {
return;
}
tempo_set(&context->tempo,
config_file_get_int(&saved_state, "tempo", context->tempo.tempo));
context->page = config_file_get_int(&saved_state, "page", 0);
context->selected = config_file_get_int(&saved_state, "selected", 0);
for (unsigned int i = 0; i < context->state.length; i++) {
snprintf(key, STR_LEN, "seed_%d", i);
context->seeds[i] =
config_file_get_int(&saved_state, key, context->seeds[i]);
snprintf(key, STR_LEN, "state_%d", i);
context->state.values[i] = config_file_get_int(&saved_state, key, 0);
}
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
snprintf(key, STR_LEN, "active_%d", i);
context->active[i] = config_file_get_int(&saved_state, key, 0);
}
for (unsigned int i = 0; i < state_config->value_count; i++) {
snprintf(key, STR_LEN, "value_%d_x", i);
context->values[i][0] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
snprintf(key, STR_LEN, "value_%d_y", i);
context->values[i][1] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
snprintf(key, STR_LEN, "value_%d_z", i);
context->values[i][2] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
}
config_file_free(&saved_state);
}
static void load_from_default_file(SharedContext *context,
const StateConfig *state_config) {
char state_file[STR_LEN];
snprintf(state_file, STR_LEN, "%s.txt", state_config->save_file_prefix);
load_from_file(context, state_config, state_file);
}
static void load_from_index_file(SharedContext *context,
const StateConfig *state_config,
unsigned int index) {
char state_file[STR_LEN];
snprintf(state_file, STR_LEN, "%s.%d.txt", state_config->save_file_prefix,
index);
load_from_file(context, state_config, state_file);
}
static void save_to_file(const SharedContext *context,
const StateConfig *state_config,
const char *state_file) {
StringArray lines;
log_info("Saving state to '%s'...", state_file);
lines.length = 0;
snprintf(lines.values[lines.length++], STR_LEN, "tempo=%d",
(unsigned int)context->tempo.tempo);
snprintf(lines.values[lines.length++], STR_LEN, "page=%d", context->page);
snprintf(lines.values[lines.length++], STR_LEN, "selected=%d",
context->selected);
for (unsigned int i = 0; i < context->state.length; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "seed_%d=%d", i,
context->seeds[i]);
snprintf(lines.values[lines.length++], STR_LEN, "state_%d=%d", i,
context->state.values[i]);
}
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "active_%d=%d", i,
context->active[i]);
}
for (unsigned int i = 0; i < state_config->value_count; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_x=%d", i,
(unsigned int)(context->values[i][0] * MIDI_MAX));
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_y=%d", i,
(unsigned int)(context->values[i][1] * MIDI_MAX));
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_z=%d", i,
(unsigned int)(context->values[i][2] * MIDI_MAX));
}
file_write(state_file, &lines);
}
static void save_to_default_file(const SharedContext *context,
const StateConfig *state_config) {
char state_file[STR_LEN];
snprintf(state_file, STR_LEN, "%s.txt", state_config->save_file_prefix);
save_to_file(context, state_config, state_file);
}
static void save_to_index_file(const SharedContext *context,
const StateConfig *state_config,
unsigned int index) {
char state_file[STR_LEN];
snprintf(state_file, STR_LEN, "%s.%d.txt", state_config->save_file_prefix,
index);
save_to_file(context, state_config, state_file);
}
void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
unsigned int offset;
unsigned int count;
@@ -118,76 +344,10 @@ void state_parse_config(StateConfig *state_config, const ConfigFile *config) {
state_config->tap_tempo_code =
config_file_get_int(config, "TAP_TEMPO", UNSET_MIDI_CODE);
}
static void safe_midi_write(const MidiDevice *midi, unsigned int code,
unsigned char value) {
if (code != UNSET_MIDI_CODE) {
midi_write(midi, code, value);
}
}
static void update_page(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int page_item_min;
unsigned int page_item_max;
// SHOW PAGE
for (unsigned int i = 0; i < state_config->select_page_codes.length; i++) {
safe_midi_write(midi, state_config->select_page_codes.values[i],
i == context->page ? MIDI_MAX : 0);
}
// SHOW PAGE ITEM
page_item_min = state_config->select_item_codes.length * context->page;
page_item_max = page_item_min + state_config->select_item_codes.length;
if (context->state.values[context->selected] >= page_item_min &&
context->state.values[context->selected] < page_item_max) {
for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
safe_midi_write(midi, state_config->select_item_codes.values[i],
i == context->state.values[context->selected] -
page_item_min
? MIDI_MAX
: 0);
}
} else {
for (unsigned int i = 0; i < state_config->select_item_codes.length; i++) {
safe_midi_write(midi, state_config->select_item_codes.values[i], 0);
}
}
}
static void update_active(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int k;
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
for (unsigned int j = 0; j < state_config->midi_active_counts.values[i];
j++) {
k = state_config->midi_active_offsets.values[i] + j;
safe_midi_write(midi, state_config->midi_active_codes.values[k],
context->active[i] == j ? MIDI_MAX : 0);
}
}
}
static void update_values(const SharedContext *context,
const StateConfig *state_config,
const MidiDevice *midi) {
unsigned int j;
unsigned int k;
unsigned int part;
for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
j = i / 3;
part = arr_uint_remap_index(state_config->midi_offsets, &j);
k = state_config->values_offsets.values[part] +
context->active[part] * state_config->midi_counts.values[part] + j;
safe_midi_write(midi, state_config->midi_codes.values[i],
context->values[k][i % 3] * MIDI_MAX);
}
strlcpy(state_config->save_file_prefix,
config_file_get_str(config, "SAVE_FILE_PREFIX", "forge_save"),
STR_LEN);
}
void state_midi_event(SharedContext *context, const StateConfig *state_config,
@@ -281,39 +441,6 @@ void state_midi_event(SharedContext *context, const StateConfig *state_config,
}
}
static void reset(SharedContext *context) {
memset(context->values, 0, sizeof(context->values));
memset(context->state.values, 0, sizeof(context->state.values));
}
static void randomize(SharedContext *context, const StateConfig *state_config) {
unsigned int j;
unsigned int l;
unsigned int part;
for (unsigned int i = 0; i < state_config->midi_codes.length; i++) {
j = i / 3;
part = arr_uint_remap_index(state_config->midi_offsets, &j);
for (unsigned int k = 0; k < state_config->midi_active_counts.values[part];
k++) {
l = state_config->values_offsets.values[part] +
k * state_config->midi_counts.values[part] + j;
if (arr_uint_index_of(state_config->fader_codes,
state_config->midi_codes.values[i]) !=
ARRAY_NOT_FOUND) {
context->values[l][i % 3] = (float)rand_uint(MIDI_MAX + 1) / MIDI_MAX;
} else {
context->values[l][i % 3] = rand_uint(2) == 1 ? 1 : 0;
}
}
}
for (unsigned int i = 0; i < context->state.length; i++) {
context->state.values[i] = rand_uint(state_config->state_max);
}
}
void state_key_event(SharedContext *context, const StateConfig *state_config,
unsigned int code, const MidiDevice *midi) {
if (code == 82) {
@@ -354,6 +481,12 @@ void state_key_event(SharedContext *context, const StateConfig *state_config,
tempo_set(&context->tempo, context->tempo.tempo - 1);
}
log_info("[DOWN] Tempo: %f", context->tempo);
} else if (code >= 48 && code <= 57) {
log_info("[%d] Loading state %d", code - 48, code - 48);
load_from_index_file(context, state_config, code - 48);
} else if (code >= 1048 && code <= 1057) {
log_info("[%d] Saving state %d", code - 1048, code - 1048);
save_to_index_file(context, state_config, code - 1048);
} else {
log_info("[%d] No hotkey defined", code);
}
@@ -414,50 +547,9 @@ bool state_background_write(SharedContext *context,
return false;
}
static void state_load(SharedContext *context, const StateConfig *state_config,
const char *state_file) {
ConfigFile saved_state;
char key[STR_LEN];
config_file_read(&saved_state, state_file);
tempo_set(&context->tempo,
config_file_get_int(&saved_state, "tempo", context->tempo.tempo));
context->page = config_file_get_int(&saved_state, "page", 0);
context->selected = config_file_get_int(&saved_state, "selected", 0);
for (unsigned int i = 0; i < context->state.length; i++) {
snprintf(key, STR_LEN, "seed_%d", i);
context->seeds[i] =
config_file_get_int(&saved_state, key, context->seeds[i]);
snprintf(key, STR_LEN, "state_%d", i);
context->state.values[i] = config_file_get_int(&saved_state, key, 0);
}
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
snprintf(key, STR_LEN, "active_%d", i);
context->active[i] = config_file_get_int(&saved_state, key, 0);
}
for (unsigned int i = 0; i < state_config->value_count; i++) {
snprintf(key, STR_LEN, "value_%d_x", i);
context->values[i][0] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
snprintf(key, STR_LEN, "value_%d_y", i);
context->values[i][1] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
snprintf(key, STR_LEN, "value_%d_z", i);
context->values[i][2] =
(float)config_file_get_int(&saved_state, key, 0) / MIDI_MAX;
}
config_file_free(&saved_state);
}
void state_init(SharedContext *context, const StateConfig *state_config,
bool demo, bool auto_random, unsigned int auto_random_cycles,
unsigned int base_tempo, const char *state_file,
bool load_state) {
unsigned int base_tempo, bool load_state) {
tempo_init(&context->tempo);
tempo_set(&context->tempo, base_tempo);
context->demo = demo;
@@ -484,44 +576,10 @@ void state_init(SharedContext *context, const StateConfig *state_config,
}
if (load_state) {
state_load(context, state_config, state_file);
load_from_default_file(context, state_config);
}
}
void state_save(const SharedContext *context, const StateConfig *state_config,
const char *state_file) {
StringArray lines;
log_info("Saving state to '%s'...", state_file);
lines.length = 0;
snprintf(lines.values[lines.length++], STR_LEN, "tempo=%d",
(unsigned int)context->tempo.tempo);
snprintf(lines.values[lines.length++], STR_LEN, "page=%d", context->page);
snprintf(lines.values[lines.length++], STR_LEN, "selected=%d",
context->selected);
for (unsigned int i = 0; i < context->state.length; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "seed_%d=%d", i,
context->seeds[i]);
snprintf(lines.values[lines.length++], STR_LEN, "state_%d=%d", i,
context->state.values[i]);
}
for (unsigned int i = 0; i < state_config->midi_active_counts.length; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "active_%d=%d", i,
context->active[i]);
}
for (unsigned int i = 0; i < state_config->value_count; i++) {
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_x=%d", i,
(unsigned int)(context->values[i][0] * MIDI_MAX));
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_y=%d", i,
(unsigned int)(context->values[i][1] * MIDI_MAX));
snprintf(lines.values[lines.length++], STR_LEN, "value_%d_z=%d", i,
(unsigned int)(context->values[i][2] * MIDI_MAX));
}
file_write(state_file, &lines);
void state_save(const SharedContext *context, const StateConfig *state_config) {
save_to_default_file(context, state_config);
}
src/state.h
+2 -4
View File
@@ -18,10 +18,8 @@ bool state_background_write(SharedContext *context,
void state_init(SharedContext *context, const StateConfig *state_config,
bool demo, bool auto_random, unsigned int auto_random_cycles,
unsigned int base_tempo, const char *state_file,
bool load_state);
unsigned int base_tempo, bool load_state);
void state_save(const SharedContext *context, const StateConfig *state_config,
const char *state_file);
void state_save(const SharedContext *context, const StateConfig *state_config);
#endif /* STATE_H */
src/types.h
+3 -1
View File
@@ -47,7 +47,6 @@ typedef struct Parameters {
StringArray video_in;
unsigned int video_size;
unsigned int internal_size;
char state_file[STR_LEN];
bool load_state;
bool save_state;
bool trace_midi;
@@ -213,6 +212,8 @@ typedef struct StateConfig {
unsigned int value_count;
unsigned int tap_tempo_code;
char save_file_prefix[STR_LEN];
} StateConfig;
// timer.c
@@ -227,6 +228,7 @@ typedef struct Timer {
typedef struct ConfigFile {
struct hashmap *map;
bool error;
} ConfigFile;
typedef struct ConfigFileItem {