Switch to using atoms to pass paths from ui to core for kit loading
This commit is contained in:
Nick Lanham
parent
990caaf510
commit
20e94c55fb
73
drmr.c
73
drmr.c
@ -22,35 +22,39 @@
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#include "drmr.h"
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#include "drmr_hydrogen.h"
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#define REQ_BUF_SIZE 10
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static void* load_thread(void* arg) {
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DrMr* drmr = (DrMr*)arg;
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drmr_sample *loaded_samples,*old_samples;
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int loaded_count, old_scount;
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char *request;
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for(;;) {
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pthread_mutex_lock(&drmr->load_mutex);
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pthread_cond_wait(&drmr->load_cond,
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&drmr->load_mutex);
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pthread_mutex_unlock(&drmr->load_mutex);
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int request = (int)floorf(*(drmr->kitReq));
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if (request == drmr->curKit) continue;
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old_samples = drmr->samples;
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old_scount = drmr->num_samples;
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if (request < 0 || request >= drmr->kits->num_kits) {
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request = drmr->request_buf[drmr->curReq];
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loaded_samples = load_hydrogen_kit(request,drmr->rate,&loaded_count);
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if (!loaded_samples) {
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fprintf(stderr,"Failed to load kit at: %s\n",request);
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pthread_mutex_lock(&drmr->load_mutex);
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drmr->num_samples = 0;
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drmr->samples = NULL;
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pthread_mutex_unlock(&drmr->load_mutex);
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} else {
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printf("loading kit: %i\n",request);
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loaded_samples = load_hydrogen_kit(drmr->kits->kits[request].path,drmr->rate,&loaded_count);
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}
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else {
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// just lock for the critical moment when we swap in the new kit
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printf("loaded kit at: %s\n",request);
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pthread_mutex_lock(&drmr->load_mutex);
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drmr->samples = loaded_samples;
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drmr->num_samples = loaded_count;
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pthread_mutex_unlock(&drmr->load_mutex);
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}
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if (old_scount > 0) free_samples(old_samples,old_scount);
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drmr->curKit = request;
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drmr->current_path = request;
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}
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return 0;
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}
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@ -65,7 +69,8 @@ instantiate(const LV2_Descriptor* descriptor,
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drmr->map = NULL;
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drmr->samples = NULL;
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drmr->num_samples = 0;
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drmr->curKit = -1;
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drmr->current_path = NULL;
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drmr->curReq = -1;
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drmr->rate = rate;
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if (pthread_mutex_init(&drmr->load_mutex, 0)) {
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@ -79,21 +84,17 @@ instantiate(const LV2_Descriptor* descriptor,
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return 0;
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}
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// Map midi uri
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while(*features) {
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if (!strcmp((*features)->URI, LV2_URID_URI "#map")) {
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if (!strcmp((*features)->URI, LV2_URID_URI "#map"))
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drmr->map = (LV2_URID_Map *)((*features)->data);
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drmr->uris.midi_event =
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drmr->map->map(drmr->map->handle,
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"http://lv2plug.in/ns/ext/midi#MidiEvent");
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}
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features++;
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}
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if (!drmr->map) {
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fprintf(stderr, "LV2 host does not support urid#map.\n");
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free(drmr);
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return 0;
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}
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}
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map_drmr_uris(drmr->map,&(drmr->uris));
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drmr->kits = scan_kits();
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if (!drmr->kits) {
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@ -108,6 +109,9 @@ instantiate(const LV2_Descriptor* descriptor,
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return 0;
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}
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drmr->request_buf = malloc(REQ_BUF_SIZE*sizeof(char*));
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memset(drmr->request_buf,0,REQ_BUF_SIZE*sizeof(char*));
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drmr->gains = malloc(32*sizeof(float*));
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drmr->pans = malloc(32*sizeof(float*));
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for(i = 0;i<32;i++) {
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@ -128,6 +132,9 @@ connect_port(LV2_Handle instance,
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case DRMR_CONTROL:
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drmr->control_port = (LV2_Atom_Sequence*)data;
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break;
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case DRMR_KITPATH:
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drmr->kitpath_port = (LV2_Atom_Sequence*)data;
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break;
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case DRMR_LEFT:
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drmr->left = (float*)data;
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break;
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@ -135,7 +142,7 @@ connect_port(LV2_Handle instance,
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drmr->right = (float*)data;
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break;
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case DRMR_KITNUM:
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if(data) drmr->kitReq = (float*)data;
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//if(data) drmr->kitReq = (float*)data;
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break;
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case DRMR_BASENOTE:
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if (data) drmr->baseNote = (float*)data;
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@ -182,13 +189,10 @@ static inline void layer_to_sample(drmr_sample *sample, float gain) {
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#define DB_CO(g) ((g) > GAIN_MIN ? powf(10.0f, (g) * 0.05f) : 0.0f)
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static void run(LV2_Handle instance, uint32_t n_samples) {
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int i,kitInt,baseNote;
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int i,baseNote;
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DrMr* drmr = (DrMr*)instance;
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kitInt = (int)floorf(*(drmr->kitReq));
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baseNote = (int)floorf(*(drmr->baseNote));
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if (kitInt != drmr->curKit) // requested a new kit
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pthread_cond_signal(&drmr->load_cond);
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LV2_SEQUENCE_FOREACH(drmr->control_port, i) {
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LV2_Atom_Event* const ev = lv2_sequence_iter_get(i);
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@ -220,9 +224,36 @@ static void run(LV2_Handle instance, uint32_t n_samples) {
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default:
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printf("Unhandeled status: %i\n",(*data)>>4);
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}
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} else printf("unrecognized event\n");
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}
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else if (ev->body.type == drmr->uris.atom_resource) {
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const LV2_Atom_Object *obj = (LV2_Atom_Object*)&ev->body;
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if (obj->body.otype == drmr->uris.ui_msg) {
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const LV2_Atom* path = NULL;
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lv2_object_get(obj, drmr->uris.kit_path, &path, 0);
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if (!path)
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fprintf(stderr,"Got UI message without kit_path, ignoring\n");
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else {
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int reqPos = (drmr->curReq+1)%REQ_BUF_SIZE;
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char *tmp = NULL;
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if (reqPos >= 0 &&
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drmr->request_buf[reqPos])
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tmp = drmr->request_buf[reqPos];
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drmr->request_buf[reqPos] = strdup(LV2_ATOM_BODY(path));
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drmr->curReq = reqPos;
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if (tmp) free(tmp);
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}
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}
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}
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else printf("unrecognized event\n");
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}
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if ((drmr->curReq >= 0) &&
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drmr->request_buf[drmr->curReq] &&
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(!drmr->current_path ||
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strcmp(drmr->current_path,
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drmr->request_buf[drmr->curReq])))
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pthread_cond_signal(&drmr->load_cond);
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for(i = 0;i<n_samples;i++) {
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drmr->left[i] = 0.0f;
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drmr->right[i] = 0.0f;
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37
drmr.h
37
drmr.h
@ -137,31 +137,40 @@ typedef enum {
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DRMR_PAN_THIRTY,
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DRMR_PAN_THIRTYONE,
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DRMR_PAN_THIRTYTWO,
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DRMR_KITPATH,
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DRMR_NUM_PORTS
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} DrMrPortIndex;
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typedef struct {
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LV2_URID midi_event;
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LV2_URID ui_msg;
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LV2_URID kit_path;
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LV2_URID atom_eventTransfer;
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LV2_URID atom_resource;
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} drmr_uris;
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typedef struct {
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// Ports
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float* left;
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float* right;
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LV2_Atom_Sequence *control_port;
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LV2_Atom_Sequence *kitpath_port;
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// params
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float** gains;
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float** pans;
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float* kitReq;
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float* baseNote;
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double rate;
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// URIs
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LV2_URID_Map* map;
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struct {
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LV2_URID midi_event;
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} uris;
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drmr_uris uris;
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// Available kits
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kits* kits;
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int curKit;
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char* current_path;
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char** request_buf;
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int curReq;
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// Samples
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drmr_sample* samples;
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@ -174,5 +183,23 @@ typedef struct {
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} DrMr;
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static inline
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void map_drmr_uris(LV2_URID_Map *map,
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drmr_uris *uris) {
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uris->midi_event =
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map->map(map->handle,
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"http://lv2plug.in/ns/ext/midi#MidiEvent");
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uris->ui_msg =
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map->map(map->handle,
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DRMR_URI "#uimsg");
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uris->kit_path =
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map->map(map->handle,
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DRMR_URI "#kitpath");
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uris->atom_eventTransfer =
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map->map(map->handle, LV2_ATOM__eventTransfer);
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uris->atom_resource =
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map->map(map->handle, LV2_ATOM__Resource);
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}
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#endif // DRMR_H
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65
drmr_ui.c
65
drmr_ui.c
@ -21,6 +21,11 @@
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#include "drmr.h"
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#include "drmr_hydrogen.h"
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#include "nknob.h"
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#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
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#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
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#include "lv2/lv2plug.in/ns/ext/atom/util.h"
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#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
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#include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
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#define DRMR_UI_URI "http://github.com/nicklan/drmr#ui"
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@ -28,6 +33,10 @@
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typedef struct {
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LV2UI_Write_Function write;
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LV2UI_Controller controller;
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LV2_Atom_Forge forge;
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LV2_URID_Map *map;
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drmr_uris uris;
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GtkWidget *drmr_widget;
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GtkTable *sample_table;
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@ -271,12 +280,30 @@ static gboolean kit_callback(gpointer data) {
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return FALSE; // don't keep calling
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}
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static LV2_Atom* build_path_message(DrMrUi *ui, const char* path) {
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LV2_Atom_Forge_Frame set_frame;
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LV2_Atom* msg = (LV2_Atom*)lv2_atom_forge_resource
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(&ui->forge, &set_frame, 1, ui->uris.ui_msg);
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lv2_atom_forge_property_head(&ui->forge, ui->uris.kit_path,0);
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lv2_atom_forge_path(&ui->forge, path, strlen(path));
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lv2_atom_forge_pop(&ui->forge,&set_frame);
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return msg;
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}
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static void kit_combobox_changed(GtkComboBox* box, gpointer data) {
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DrMrUi* ui = (DrMrUi*)data;
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gint new_kit = gtk_combo_box_get_active (GTK_COMBO_BOX(box));
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float fkit = (float)new_kit;
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if (ui->curKit != new_kit)
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ui->write(ui->controller,DRMR_KITNUM,4,0,&fkit);
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if (ui->curKit != new_kit) {
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uint8_t msg_buf[1024];
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lv2_atom_forge_set_buffer(&ui->forge, msg_buf, 1024);
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LV2_Atom *msg = build_path_message(ui,ui->kits->kits[new_kit].path);
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ui->write(ui->controller,DRMR_CONTROL,
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lv2_atom_total_size(msg),
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ui->uris.atom_eventTransfer,
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msg);
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}
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/* Call our update func after 100 milliseconds.
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*
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@ -424,11 +451,27 @@ instantiate(const LV2UI_Descriptor* descriptor,
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ui->write = write_function;
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ui->controller = controller;
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ui->drmr_widget = NULL;
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ui->map = NULL;
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ui->curKit = -1;
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ui->samples = 0;
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ui->bundle_path = g_strdup(bundle_path);
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*widget = NULL;
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while(*features) {
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if (!strcmp((*features)->URI, LV2_URID_URI "#map"))
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ui->map = (LV2_URID_Map *)((*features)->data);
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features++;
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}
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if (!ui->map) {
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fprintf(stderr, "LV2 host does not support urid#map.\n");
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free(ui);
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return 0;
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}
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map_drmr_uris(ui->map,&(ui->uris));
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ui->bundle_path = g_strdup(bundle_path);
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lv2_atom_forge_init(&ui->forge,ui->map);
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build_drmr_ui(ui);
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ui->kits = scan_kits();
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@ -493,19 +536,7 @@ port_event(LV2UI_Handle handle,
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DrMrPortIndex index = (DrMrPortIndex)port_index;
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DrMrUi* ui = (DrMrUi*)handle;
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if (index == DRMR_KITNUM) {
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if (format != 0)
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fprintf(stderr,"Invalid format for kitnum: %i\n",format);
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else {
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int kit = (int)(*((float*)buffer));
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ui->kitReq = kit;
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if (!idle) {
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idle = TRUE;
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g_idle_add(kit_callback,ui);
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}
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}
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}
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else if (index == DRMR_BASENOTE) {
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if (index == DRMR_BASENOTE) {
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int base = (int)(*((float*)buffer));
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if (base >= 21 && base <= 107) {
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setBaseLabel((int)base);
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