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-rw-r--r--backends/Makefile4
-rw-r--r--backends/evdev.h3
-rw-r--r--backends/libmmbackend.c241
-rw-r--r--backends/libmmbackend.h33
-rw-r--r--backends/maweb.c358
-rw-r--r--backends/maweb.h14
-rw-r--r--backends/maweb.md36
-rw-r--r--backends/midi.h3
-rw-r--r--backends/osc.h3
9 files changed, 581 insertions, 114 deletions
diff --git a/backends/Makefile b/backends/Makefile
index 582655c..5c5b677 100644
--- a/backends/Makefile
+++ b/backends/Makefile
@@ -1,7 +1,7 @@
.PHONY: all clean full
LINUX_BACKENDS = midi.so evdev.so
-WINDOWS_BACKENDS = artnet.dll osc.dll loopback.dll sacn.dll
-BACKENDS = artnet.so osc.so loopback.so sacn.so lua.so
+WINDOWS_BACKENDS = artnet.dll osc.dll loopback.dll sacn.dll maweb.dll
+BACKENDS = artnet.so osc.so loopback.so sacn.so lua.so maweb.so
OPTIONAL_BACKENDS = ola.so
BACKEND_LIB = libmmbackend.o
diff --git a/backends/evdev.h b/backends/evdev.h
index b26664b..48bd0ab 100644
--- a/backends/evdev.h
+++ b/backends/evdev.h
@@ -52,4 +52,5 @@ typedef union {
uint16_t code;
} fields;
uint64_t label;
-} evdev_channel_ident; \ No newline at end of file
+} evdev_channel_ident;
+
diff --git a/backends/libmmbackend.c b/backends/libmmbackend.c
index c98cfe3..ccbeb52 100644
--- a/backends/libmmbackend.c
+++ b/backends/libmmbackend.c
@@ -208,10 +208,11 @@ size_t json_validate(char* json, size_t length){
size_t json_validate_string(char* json, size_t length){
size_t string_length = 0, offset;
- for(offset = 0; json[offset] && offset < length && json[offset] != '"'; offset++){
+ //skip leading whitespace
+ for(offset = 0; json[offset] && offset < length && isspace(json[offset]); offset++){
}
- if(offset == length){
+ if(offset == length || json[offset] != '"'){
return 0;
}
@@ -230,17 +231,122 @@ size_t json_validate_string(char* json, size_t length){
}
size_t json_validate_array(char* json, size_t length){
- //TODO
+ size_t offset = 0;
+
+ //skip leading whitespace
+ for(offset = 0; json[offset] && offset < length && isspace(json[offset]); offset++){
+ }
+
+ if(offset == length || json[offset] != '['){
+ return 0;
+ }
+
+ for(offset++; offset < length; offset++){
+ offset += json_validate(json + offset, length - offset);
+
+ //skip trailing whitespace, find terminator
+ for(; offset < length && isspace(json[offset]); offset++){
+ }
+
+ if(json[offset] == ','){
+ continue;
+ }
+
+ if(json[offset] == ']'){
+ return offset + 1;
+ }
+
+ break;
+ }
+
return 0;
}
size_t json_validate_object(char* json, size_t length){
- //TODO
+ size_t offset = 0;
+
+ //skip whitespace
+ for(offset = 0; json[offset] && isspace(json[offset]); offset++){
+ }
+
+ if(offset == length || json[offset] != '{'){
+ return 0;
+ }
+
+ for(offset++; offset < length; offset++){
+ if(json_identify(json + offset, length - offset) != JSON_STRING){
+ //still could be an empty object...
+ for(; offset < length && isspace(json[offset]); offset++){
+ }
+ if(json[offset] == '}'){
+ return offset + 1;
+ }
+ return 0;
+ }
+ offset += json_validate(json + offset, length - offset);
+
+ //find value separator
+ for(; offset < length && isspace(json[offset]); offset++){
+ }
+
+ if(json[offset] != ':'){
+ return 0;
+ }
+
+ offset++;
+ offset += json_validate(json + offset, length - offset);
+
+ //skip trailing whitespace
+ for(; json[offset] && isspace(json[offset]); offset++){
+ }
+
+ if(json[offset] == '}'){
+ return offset + 1;
+ }
+ else if(json[offset] != ','){
+ return 0;
+ }
+ }
return 0;
}
size_t json_validate_value(char* json, size_t length){
- //TODO
+ size_t offset = 0, value_length;
+
+ //skip leading whitespace
+ for(offset = 0; json[offset] && offset < length && isspace(json[offset]); offset++){
+ }
+
+ if(offset == length){
+ return 0;
+ }
+
+ //match complete values
+ if(length - offset >= 4 && !strncmp(json + offset, "null", 4)){
+ return offset + 4;
+ }
+ else if(length - offset >= 4 && !strncmp(json + offset, "true", 4)){
+ return offset + 4;
+ }
+ else if(length - offset >= 5 && !strncmp(json + offset, "false", 5)){
+ return offset + 5;
+ }
+
+ if(json[offset] == '-' || isdigit(json[offset])){
+ //json number parsing is dumb.
+ for(value_length = 1; offset + value_length < length &&
+ (isdigit(json[offset + value_length])
+ || json[offset + value_length] == '+'
+ || json[offset + value_length] == '-'
+ || json[offset + value_length] == '.'
+ || tolower(json[offset + value_length]) == 'e'); value_length++){
+ }
+
+ if(value_length > 0){
+ return offset + value_length;
+ }
+ }
+
return 0;
}
@@ -284,13 +390,51 @@ size_t json_obj_offset(char* json, char* key){
//add length of value
offset += json_validate(json + offset, strlen(json + offset));
- //find comma or closing brace
- for(; json[offset] && json[offset] != ',' && json[offset] != '}'; offset++){
+ //skip trailing whitespace
+ for(; json[offset] && isspace(json[offset]); offset++){
}
if(json[offset] == ','){
offset++;
+ continue;
+ }
+
+ break;
+ }
+
+ return 0;
+}
+
+size_t json_array_offset(char* json, uint64_t key){
+ size_t offset = 0, index = 0;
+
+ //skip leading whitespace
+ for(offset = 0; json[offset] && isspace(json[offset]); offset++){
+ }
+
+ if(json[offset] != '['){
+ return 0;
+ }
+
+ for(offset++; index <= key; offset++){
+ //skip whitespace
+ for(; json[offset] && isspace(json[offset]); offset++){
+ }
+
+ if(index == key){
+ return offset;
+ }
+
+ offset += json_validate(json + offset, strlen(json + offset));
+
+ //skip trailing whitespace, find terminator
+ for(; json[offset] && isspace(json[offset]); offset++){
}
+
+ if(json[offset] != ','){
+ break;
+ }
+ index++;
}
return 0;
@@ -304,6 +448,14 @@ json_type json_obj(char* json, char* key){
return JSON_INVALID;
}
+json_type json_array(char* json, uint64_t key){
+ size_t offset = json_array_offset(json, key);
+ if(offset){
+ return json_identify(json + offset, strlen(json + offset));
+ }
+ return JSON_INVALID;
+}
+
uint8_t json_obj_bool(char* json, char* key, uint8_t fallback){
size_t offset = json_obj_offset(json, key);
if(offset){
@@ -317,6 +469,19 @@ uint8_t json_obj_bool(char* json, char* key, uint8_t fallback){
return fallback;
}
+uint8_t json_array_bool(char* json, uint64_t key, uint8_t fallback){
+ size_t offset = json_array_offset(json, key);
+ if(offset){
+ if(!strncmp(json + offset, "true", 4)){
+ return 1;
+ }
+ if(!strncmp(json + offset, "false", 5)){
+ return 0;
+ }
+ }
+ return fallback;
+}
+
int64_t json_obj_int(char* json, char* key, int64_t fallback){
char* next_token = NULL;
int64_t result;
@@ -332,7 +497,7 @@ int64_t json_obj_int(char* json, char* key, int64_t fallback){
double json_obj_double(char* json, char* key, double fallback){
char* next_token = NULL;
- int64_t result;
+ double result;
size_t offset = json_obj_offset(json, key);
if(offset){
result = strtod(json + offset, &next_token);
@@ -343,6 +508,32 @@ double json_obj_double(char* json, char* key, double fallback){
return fallback;
}
+int64_t json_array_int(char* json, uint64_t key, int64_t fallback){
+ char* next_token = NULL;
+ int64_t result;
+ size_t offset = json_array_offset(json, key);
+ if(offset){
+ result = strtol(json + offset, &next_token, 10);
+ if(next_token != json + offset){
+ return result;
+ }
+ }
+ return fallback;
+}
+
+double json_array_double(char* json, uint64_t key, double fallback){
+ char* next_token = NULL;
+ double result;
+ size_t offset = json_array_offset(json, key);
+ if(offset){
+ result = strtod(json + offset, &next_token);
+ if(next_token != json + offset){
+ return result;
+ }
+ }
+ return fallback;
+}
+
char* json_obj_str(char* json, char* key, size_t* length){
size_t offset = json_obj_offset(json, key), raw_length;
if(offset){
@@ -356,15 +547,37 @@ char* json_obj_str(char* json, char* key, size_t* length){
}
char* json_obj_strdup(char* json, char* key){
- size_t offset = json_obj_offset(json, key), raw_length;
- char* rv = NULL;
+ size_t len = 0;
+ char* value = json_obj_str(json, key, &len), *rv = NULL;
+ if(len){
+ rv = calloc(len + 1, sizeof(char));
+ if(rv){
+ memcpy(rv, value, len);
+ }
+ }
+ return rv;
+}
+
+char* json_array_str(char* json, uint64_t key, size_t* length){
+ size_t offset = json_array_offset(json, key), raw_length;
if(offset){
raw_length = json_validate_string(json + offset, strlen(json + offset));
- rv = calloc(raw_length - 1, sizeof(char));
- if(rv){
- memcpy(rv, json + offset + 1, raw_length - 2);
+ if(length){
+ *length = raw_length - 2;
}
- return rv;
+ return json + offset + 1;
}
return NULL;
}
+
+char* json_array_strdup(char* json, uint64_t key){
+ size_t len = 0;
+ char* value = json_array_str(json, key, &len), *rv = NULL;
+ if(len){
+ rv = calloc(len + 1, sizeof(char));
+ if(rv){
+ memcpy(rv, value, len);
+ }
+ }
+ return rv;
+}
diff --git a/backends/libmmbackend.h b/backends/libmmbackend.h
index aa0ac0c..5749119 100644
--- a/backends/libmmbackend.h
+++ b/backends/libmmbackend.h
@@ -78,49 +78,50 @@ json_type json_identify(char* json, size_t length);
* Returns the length of a detected JSON document, 0 otherwise (ie. parse failures)
*/
size_t json_validate(char* json, size_t length);
-
size_t json_validate_string(char* json, size_t length);
-
size_t json_validate_array(char* json, size_t length);
-
size_t json_validate_object(char* json, size_t length);
-
size_t json_validate_value(char* json, size_t length);
/*
* Calculate offset for value of `key`
- * Assumes a zero-terminated, validated JSON object as input
+ * Assumes a zero-terminated, validated JSON object / array as input
* Returns offset on success, 0 on failure
*/
size_t json_obj_offset(char* json, char* key);
+size_t json_array_offset(char* json, uint64_t key);
/*
- * Check for for a key within a JSON object
- * Assumes a zero-terminated, validated JSON object as input
+ * Check for for a key within a JSON object / index within an array
+ * Assumes a zero-terminated, validated JSON object / array as input
* Returns type of value
*/
json_type json_obj(char* json, char* key);
-
-//json_type json_array(char* json, size_t index)
+json_type json_array(char* json, uint64_t key);
/*
- * Fetch boolean value for an object key
- * Assumes a zero-terminated, validated JSON object as input
+ * Fetch boolean value for an object / array key
+ * Assumes a zero-terminated, validated JSON object / array as input
*/
uint8_t json_obj_bool(char* json, char* key, uint8_t fallback);
+uint8_t json_array_bool(char* json, uint64_t key, uint8_t fallback);
/*
- * Fetch integer/double value for an object key
- * Assumes a zero-terminated validated JSON object as input
+ * Fetch integer/double value for an object / array key
+ * Assumes a zero-terminated validated JSON object / array as input
*/
int64_t json_obj_int(char* json, char* key, int64_t fallback);
double json_obj_double(char* json, char* key, double fallback);
+int64_t json_array_int(char* json, uint64_t key, int64_t fallback);
+double json_array_double(char* json, uint64_t key, double fallback);
/*
- * Fetch a string value for an object key
- * Assumes a zero-terminated validated JSON object as input
- * json_obj_strdup returns a newly-allocated buffer containing
+ * Fetch a string value for an object / array key
+ * Assumes a zero-terminated validated JSON object / array as input
+ * json_*_strdup returns a newly-allocated buffer containing
* only the requested value
*/
char* json_obj_str(char* json, char* key, size_t* length);
char* json_obj_strdup(char* json, char* key);
+char* json_array_str(char* json, uint64_t key, size_t* length);
+char* json_array_strdup(char* json, uint64_t key);
diff --git a/backends/maweb.c b/backends/maweb.c
index 79e223f..07595be 100644
--- a/backends/maweb.c
+++ b/backends/maweb.c
@@ -14,7 +14,13 @@
#define WS_FLAG_FIN 0x80
#define WS_FLAG_MASK 0x80
+//TODO test using different pages simultaneously
+//TODO test dot2 button virtual faders in fader view
+
static uint64_t last_keepalive = 0;
+static uint64_t update_interval = 50;
+static uint64_t last_update = 0;
+static uint64_t updates_inflight = 0;
static char* cmdline_keys[] = {
"SET",
@@ -94,7 +100,8 @@ int init(){
.handle = maweb_set,
.process = maweb_handle,
.start = maweb_start,
- .shutdown = maweb_shutdown
+ .shutdown = maweb_shutdown,
+ .interval = maweb_interval
};
if(sizeof(maweb_channel_ident) != sizeof(uint64_t)){
@@ -110,8 +117,27 @@ int init(){
return 0;
}
+static int channel_comparator(const void* raw_a, const void* raw_b){
+ maweb_channel_ident* a = (maweb_channel_ident*) raw_a;
+ maweb_channel_ident* b = (maweb_channel_ident*) raw_b;
+
+ if(a->fields.page != b->fields.page){
+ return a->fields.page - b->fields.page;
+ }
+ return a->fields.index - b->fields.index;
+}
+
+static uint32_t maweb_interval(){
+ return update_interval - (last_update % update_interval);
+}
+
static int maweb_configure(char* option, char* value){
- fprintf(stderr, "The maweb backend does not take any global configuration\n");
+ if(!strcmp(option, "interval")){
+ update_interval = strtoul(value, NULL, 10);
+ return 0;
+ }
+
+ fprintf(stderr, "Unknown maweb backend configuration option %s\n", option);
return 1;
}
@@ -187,6 +213,7 @@ static instance* maweb_instance(){
}
static channel* maweb_channel(instance* inst, char* spec){
+ maweb_instance_data* data = (maweb_instance_data*) inst->impl;
maweb_channel_ident ident = {
.label = 0
};
@@ -214,7 +241,7 @@ static channel* maweb_channel(instance* inst, char* spec){
next_token += 5;
}
else if(!strncmp(next_token, "flash", 5)){
- ident.fields.type = exec_flash;
+ ident.fields.type = exec_button;
next_token += 5;
}
else if(!strncmp(next_token, "button", 6)){
@@ -238,6 +265,24 @@ static channel* maweb_channel(instance* inst, char* spec){
//actually, those are zero-indexed...
ident.fields.index--;
ident.fields.page--;
+
+ //check if the channel is already known
+ for(n = 0; n < data->input_channels; n++){
+ if(data->input_channel[n].label == ident.label){
+ break;
+ }
+ }
+
+ if(n == data->input_channels){
+ data->input_channel = realloc(data->input_channel, (data->input_channels + 1) * sizeof(maweb_channel_ident));
+ if(!data->input_channel){
+ fprintf(stderr, "Failed to allocate memory\n");
+ return NULL;
+ }
+ data->input_channel[n].label = ident.label;
+ data->input_channels++;
+ }
+
return mm_channel(inst, ident.label, 1);
}
fprintf(stderr, "Failed to parse maweb channel spec %s\n", spec);
@@ -276,11 +321,216 @@ static int maweb_send_frame(instance* inst, maweb_operation op, uint8_t* payload
return 0;
}
+static int maweb_process_playback(instance* inst, int64_t page, maweb_channel_type metatype, char* payload, size_t payload_length){
+ size_t exec_blocks = json_obj_offset(payload, (metatype == 2) ? "executorBlocks" : "bottomButtons"), offset, block = 0, control;
+ channel* chan = NULL;
+ channel_value evt;
+ maweb_channel_ident ident = {
+ .fields.page = page,
+ .fields.index = json_obj_int(payload, "iExec", 191)
+ };
+
+ if(!exec_blocks){
+ if(metatype == 3){
+ //ignore unused buttons
+ return 0;
+ }
+ fprintf(stderr, "maweb missing exec block data on exec %d\n", ident.fields.index);
+ return 1;
+ }
+
+ if(metatype == 3){
+ exec_blocks += json_obj_offset(payload + exec_blocks, "items");
+ }
+
+ //TODO detect unused faders
+ //TODO state tracking for fader values / exec run state
+
+ //iterate over executor blocks
+ for(offset = json_array_offset(payload + exec_blocks, block); offset; offset = json_array_offset(payload + exec_blocks, block)){
+ control = exec_blocks + offset + json_obj_offset(payload + exec_blocks + offset, "fader");
+ ident.fields.type = exec_fader;
+ chan = mm_channel(inst, ident.label, 0);
+ if(chan){
+ evt.normalised = json_obj_double(payload + control, "v", 0.0);
+ mm_channel_event(chan, evt);
+ }
+
+ ident.fields.type = exec_button;
+ chan = mm_channel(inst, ident.label, 0);
+ if(chan){
+ evt.normalised = json_obj_int(payload, "isRun", 0);
+ mm_channel_event(chan, evt);
+ }
+
+ //printf("maweb page %ld exec %d value %f running %lu\n", page, ident.fields.index, json_obj_double(payload + control, "v", 0.0), json_obj_int(payload, "isRun", 0));
+ ident.fields.index++;
+ block++;
+ }
+
+ return 0;
+}
+
+static int maweb_process_playbacks(instance* inst, int64_t page, char* payload, size_t payload_length){
+ size_t base_offset = json_obj_offset(payload, "itemGroups"), group_offset, subgroup_offset, item_offset;
+ uint64_t group = 0, subgroup, item, metatype;
+
+ if(!page){
+ fprintf(stderr, "maweb received playbacks for invalid page\n");
+ return 0;
+ }
+
+ if(!base_offset){
+ fprintf(stderr, "maweb playback data missing item key\n");
+ return 0;
+ }
+
+ //iterate .itemGroups
+ for(group_offset = json_array_offset(payload + base_offset, group);
+ group_offset;
+ group_offset = json_array_offset(payload + base_offset, group)){
+ metatype = json_obj_int(payload + base_offset + group_offset, "itemsType", 0);
+ //iterate .itemGroups.items
+ //FIXME this is problematic if there is no "items" key
+ group_offset = group_offset + json_obj_offset(payload + base_offset + group_offset, "items");
+ if(group_offset){
+ subgroup = 0;
+ group_offset += base_offset;
+ for(subgroup_offset = json_array_offset(payload + group_offset, subgroup);
+ subgroup_offset;
+ subgroup_offset = json_array_offset(payload + group_offset, subgroup)){
+ //iterate .itemGroups.items[n]
+ item = 0;
+ subgroup_offset += group_offset;
+ for(item_offset = json_array_offset(payload + subgroup_offset, item);
+ item_offset;
+ item_offset = json_array_offset(payload + subgroup_offset, item)){
+ maweb_process_playback(inst, page, metatype,
+ payload + subgroup_offset + item_offset,
+ payload_length - subgroup_offset - item_offset);
+ item++;
+ }
+ subgroup++;
+ }
+ }
+ group++;
+ }
+ updates_inflight--;
+ fprintf(stderr, "maweb playback message processing done, %lu updates inflight\n", updates_inflight);
+ return 0;
+}
+
+static int maweb_request_playbacks(instance* inst){
+ maweb_instance_data* data = (maweb_instance_data*) inst->impl;
+ char xmit_buffer[MAWEB_XMIT_CHUNK];
+ int rv = 0;
+
+ char item_indices[1024] = "[0,100,200]", item_counts[1024] = "[21,21,21]", item_types[1024] = "[2,3,3]";
+ //char item_indices[1024] = "[300,400]", item_counts[1024] = "[18,18]", item_types[1024] = "[3,3]";
+ size_t page_index = 0, view = 2, channel = 0, offsets[3], channel_offset, channels;
+
+ if(updates_inflight){
+ fprintf(stderr, "maweb skipping update request, %lu updates still inflight\n", updates_inflight);
+ return 0;
+ }
+
+ for(channel = 0; channel < data->input_channels; channel++){
+ offsets[0] = offsets[1] = offsets[2] = 0;
+ page_index = data->input_channel[channel].fields.page;
+ if(data->peer_type == peer_dot2){
+ //TODO implement poll segmentation for dot
+ //"\"startIndex\":[0,100,200],"
+ //"\"itemsCount\":[21,21,21],"
+ //"\"itemsType\":[2,3,3],"
+ //"\"view\":2,"
+ //view = (data->input_channel[channel].fields.index >= 300) ? 3 : 2;
+ //observed
+ //"startIndex":[300,400,500,600,700,800],
+ //"itemsCount":[13,13,13,13,13,13]
+ //"itemsType":[3,3,3,3,3,3]
+ /*fprintf(stderr, "range start at %lu.%lu (%lu/%lu) end at %lu.%lu (%lu/%lu)\n",
+ page_index,
+ data->input_channel[channel].fields.index,
+ channel,
+ data->input_channels,
+ page_index,
+ data->input_channel[channel + channel_offset - 1].fields.index,
+ channel + channel_offset - 1,
+ data->input_channels
+ );*/
+ //only send one request currently
+ channel = data->input_channels;
+ }
+ else{
+ view = (data->input_channel[channel].fields.index >= 100) ? 3 : 2;
+ //for the ma, the view equals the exec type
+ snprintf(item_types, sizeof(item_types), "[%lu]", view);
+ //this channel must be included, so it must be in range for the first startindex
+ snprintf(item_indices, sizeof(item_indices), "[%d]", (data->input_channel[channel].fields.index / 5) * 5);
+
+ for(channel_offset = 1; channel + channel_offset < data->input_channels
+ && data->input_channel[channel].fields.page == data->input_channel[channel + channel_offset].fields.page
+ && data->input_channel[channel].fields.index / 100 == data->input_channel[channel + channel_offset].fields.index / 100; channel_offset++){
+ }
+
+ channels = data->input_channel[channel + channel_offset - 1].fields.index - (data->input_channel[channel].fields.index / 5) * 5;
+
+
+ snprintf(item_counts, sizeof(item_indices), "[%lu]", ((channels / 5) * 5 + 5));
+ channel += channel_offset - 1;
+ }
+ snprintf(xmit_buffer, sizeof(xmit_buffer),
+ "{"
+ "\"requestType\":\"playbacks\","
+ "\"startIndex\":%s,"
+ "\"itemsCount\":%s,"
+ "\"pageIndex\":%lu,"
+ "\"itemsType\":%s,"
+ "\"view\":%lu,"
+ "\"execButtonViewMode\":2," //extended
+ "\"buttonsViewMode\":0," //get vfader for button execs
+ "\"session\":%lu"
+ "}",
+ item_indices,
+ item_counts,
+ page_index,
+ item_types,
+ view,
+ data->session);
+ rv |= maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
+ //fprintf(stderr, "req: %s\n", xmit_buffer);
+ updates_inflight++;
+ }
+
+ return rv;
+}
+
static int maweb_handle_message(instance* inst, char* payload, size_t payload_length){
char xmit_buffer[MAWEB_XMIT_CHUNK];
char* field;
maweb_instance_data* data = (maweb_instance_data*) inst->impl;
+ //query this early to save on unnecessary parser passes with stupid-huge data messages
+ if(json_obj(payload, "responseType") == JSON_STRING){
+ field = json_obj_str(payload, "responseType", NULL);
+ if(!strncmp(field, "login", 5)){
+ if(json_obj_bool(payload, "result", 0)){
+ fprintf(stderr, "maweb login successful\n");
+ data->login = 1;
+ }
+ else{
+ fprintf(stderr, "maweb login failed\n");
+ data->login = 0;
+ }
+ }
+ if(!strncmp(field, "playbacks", 9)){
+ if(maweb_process_playbacks(inst, json_obj_int(payload, "iPage", 0), payload, payload_length)){
+ fprintf(stderr, "maweb failed to handle/request input data\n");
+ }
+ return 0;
+ }
+ }
+
fprintf(stderr, "maweb message (%lu): %s\n", payload_length, payload);
if(json_obj(payload, "session") == JSON_NUMBER){
data->session = json_obj_int(payload, "session", data->session);
@@ -294,7 +544,6 @@ static int maweb_handle_message(instance* inst, char* payload, size_t payload_le
(data->peer_type == peer_dot2) ? "remote" : data->user, data->pass, data->session);
maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
}
-
if(json_obj(payload, "status") && json_obj(payload, "appType")){
fprintf(stderr, "maweb connection established\n");
field = json_obj_str(payload, "appType", NULL);
@@ -307,31 +556,6 @@ static int maweb_handle_message(instance* inst, char* payload, size_t payload_le
maweb_send_frame(inst, ws_text, (uint8_t*) "{\"session\":0}", 13);
}
- if(json_obj(payload, "responseType") == JSON_STRING){
- field = json_obj_str(payload, "responseType", NULL);
- if(!strncmp(field, "login", 5)){
- if(json_obj_bool(payload, "result", 0)){
- fprintf(stderr, "maweb login successful\n");
- data->login = 1;
- }
- else{
- fprintf(stderr, "maweb login failed\n");
- data->login = 0;
- }
- }
- else if(!strncmp(field, "getdata", 7)){
- //FIXME stupid keepalive logic
- snprintf(xmit_buffer, sizeof(xmit_buffer),
- "{\"requestType\":\"getdata\","
- "\"data\":\"set,clear,solo,high\","
- "\"realtime\":true,"
- "\"maxRequests\":10,"
- ",\"session\":%ld}",
- data->session);
- maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
- }
- }
-
return 0;
}
@@ -376,7 +600,7 @@ static ssize_t maweb_handle_lines(instance* inst, ssize_t bytes_read){
maweb_instance_data* data = (maweb_instance_data*) inst->impl;
size_t n, begin = 0;
- for(n = 0; n < bytes_read - 2; n++){
+ for(n = 0; n < bytes_read - 1; n++){
if(!strncmp((char*) data->buffer + data->offset + n, "\r\n", 2)){
if(data->state == ws_new){
if(!strncmp((char*) data->buffer, "HTTP/1.1 101", 12)){
@@ -397,7 +621,7 @@ static ssize_t maweb_handle_lines(instance* inst, ssize_t bytes_read){
}
}
- return begin;
+ return data->offset + begin;
}
static ssize_t maweb_handle_ws(instance* inst, ssize_t bytes_read){
@@ -507,6 +731,7 @@ static int maweb_handle_fd(instance* inst){
if(bytes_handled < 0){
bytes_handled = data->offset + bytes_read;
+ data->offset = 0;
//TODO close, reopen
fprintf(stderr, "maweb failed to handle incoming data\n");
return 1;
@@ -517,8 +742,6 @@ static int maweb_handle_fd(instance* inst){
memmove(data->buffer, data->buffer + bytes_handled, (data->offset + bytes_read) - bytes_handled);
- //FIXME this might be somewhat borked
- bytes_read -= data->offset;
bytes_handled -= data->offset;
bytes_read -= bytes_handled;
data->offset = 0;
@@ -551,30 +774,10 @@ static int maweb_set(instance* inst, size_t num, channel** c, channel_value* v){
"\"type\":1,"
"\"session\":%ld"
"}", ident.fields.index, ident.fields.page, v[n].normalised, data->session);
- fprintf(stderr, "maweb out %s\n", xmit_buffer);
maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
break;
case exec_upper:
case exec_lower:
- case exec_flash:
- snprintf(xmit_buffer, sizeof(xmit_buffer),
- "{\"requestType\":\"playbacks_userInput\","
- //"\"cmdline\":\"\","
- "\"execIndex\":%d,"
- "\"pageIndex\":%d,"
- "\"buttonId\":%d,"
- "\"pressed\":%s,"
- "\"released\":%s,"
- "\"type\":0,"
- "\"session\":%ld"
- "}", ident.fields.index, ident.fields.page,
- (data->peer_type == peer_dot2) ? (ident.fields.type - 3) : (exec_flash - ident.fields.type),
- (v[n].normalised > 0.9) ? "true" : "false",
- (v[n].normalised > 0.9) ? "false" : "true",
- data->session);
- fprintf(stderr, "maweb out %s\n", xmit_buffer);
- maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
- break;
case exec_button:
snprintf(xmit_buffer, sizeof(xmit_buffer),
"{\"requestType\":\"playbacks_userInput\","
@@ -586,13 +789,11 @@ static int maweb_set(instance* inst, size_t num, channel** c, channel_value* v){
"\"released\":%s,"
"\"type\":0,"
"\"session\":%ld"
- "}", ident.fields.index,
- ident.fields.page,
- 0,
+ "}", ident.fields.index, ident.fields.page,
+ (data->peer_type == peer_dot2 && ident.fields.type == exec_upper) ? 0 : (ident.fields.type - exec_button),
(v[n].normalised > 0.9) ? "true" : "false",
(v[n].normalised > 0.9) ? "false" : "true",
data->session);
- fprintf(stderr, "maweb out %s\n", xmit_buffer);
maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
break;
case cmdline_button:
@@ -602,7 +803,6 @@ static int maweb_set(instance* inst, size_t num, channel** c, channel_value* v){
"\"value\":%d"
"}", cmdline_keys[ident.fields.index],
(v[n].normalised > 0.9) ? 1 : 0);
- fprintf(stderr, "maweb out %s\n", xmit_buffer);
maweb_send_frame(inst, ws_text, (uint8_t*) xmit_buffer, strlen(xmit_buffer));
break;
default:
@@ -638,6 +838,29 @@ static int maweb_keepalive(){
return 0;
}
+static int maweb_poll(){
+ size_t n, u;
+ instance** inst = NULL;
+ maweb_instance_data* data = NULL;
+
+ //fetch all defined instances
+ if(mm_backend_instances(BACKEND_NAME, &n, &inst)){
+ fprintf(stderr, "Failed to fetch instance list\n");
+ return 1;
+ }
+
+ //send data polls for logged-in instances
+ for(u = 0; u < n; u++){
+ data = (maweb_instance_data*) inst[u]->impl;
+ if(data->login){
+ maweb_request_playbacks(inst[u]);
+ }
+ }
+
+ free(inst);
+ return 0;
+}
+
static int maweb_handle(size_t num, managed_fd* fds){
size_t n = 0;
int rv = 0;
@@ -646,17 +869,24 @@ static int maweb_handle(size_t num, managed_fd* fds){
rv |= maweb_handle_fd((instance*) fds[n].impl);
}
+ //FIXME all keepalive processing allocates temporary buffers, this might an optimization target
if(last_keepalive && mm_timestamp() - last_keepalive >= MAWEB_CONNECTION_KEEPALIVE){
rv |= maweb_keepalive();
last_keepalive = mm_timestamp();
}
+ if(last_update && mm_timestamp() - last_update >= update_interval){
+ rv |= maweb_poll();
+ last_update = mm_timestamp();
+ }
+
return rv;
}
static int maweb_start(){
size_t n, u;
instance** inst = NULL;
+ maweb_instance_data* data = NULL;
//fetch all defined instances
if(mm_backend_instances(BACKEND_NAME, &n, &inst)){
@@ -665,6 +895,10 @@ static int maweb_start(){
}
for(u = 0; u < n; u++){
+ //sort channels
+ data = (maweb_instance_data*) inst[u]->impl;
+ qsort(data->input_channel, data->input_channels, sizeof(maweb_channel_ident), channel_comparator);
+
if(maweb_connect(inst[u])){
fprintf(stderr, "Failed to open connection to MA Web Remote for instance %s\n", inst[u]->name);
return 1;
@@ -678,8 +912,8 @@ static int maweb_start(){
fprintf(stderr, "maweb backend registering %lu descriptors to core\n", n);
- //initialize keepalive timeout
- last_keepalive = mm_timestamp();
+ //initialize timeouts
+ last_keepalive = last_update = mm_timestamp();
return 0;
}
@@ -713,6 +947,10 @@ static int maweb_shutdown(){
data->offset = data->allocated = 0;
data->state = ws_new;
+
+ free(data->input_channel);
+ data->input_channel = NULL;
+ data->input_channels = 0;
}
free(inst);
diff --git a/backends/maweb.h b/backends/maweb.h
index 5f59cc1..a868426 100644
--- a/backends/maweb.h
+++ b/backends/maweb.h
@@ -9,22 +9,22 @@ static int maweb_set(instance* inst, size_t num, channel** c, channel_value* v);
static int maweb_handle(size_t num, managed_fd* fds);
static int maweb_start();
static int maweb_shutdown();
+static uint32_t maweb_interval();
//Default login password: MD5("midimonster")
#define MAWEB_DEFAULT_PASSWORD "2807623134739142b119aff358f8a219"
#define MAWEB_DEFAULT_PORT "80"
#define MAWEB_RECV_CHUNK 1024
-#define MAWEB_XMIT_CHUNK 2048
+#define MAWEB_XMIT_CHUNK 4096
#define MAWEB_FRAME_HEADER_LENGTH 16
#define MAWEB_CONNECTION_KEEPALIVE 10000
typedef enum /*_maweb_channel_type*/ {
type_unset = 0,
exec_fader = 1,
- exec_button = 2,
- exec_upper = 3,
- exec_lower = 4,
- exec_flash = 5,
+ exec_button = 2, //gma: 0 dot: 0
+ exec_lower = 3, //gma: 1 dot: 1
+ exec_upper = 4, //gma: 2 dot: 0
cmdline_button
} maweb_channel_type;
@@ -69,6 +69,10 @@ typedef struct /*_maweb_instance_data*/ {
int64_t session;
maweb_peer_type peer_type;
+ //need to keep an internal registry to optimize data polls
+ size_t input_channels;
+ maweb_channel_ident* input_channel;
+
int fd;
maweb_state state;
size_t offset;
diff --git a/backends/maweb.md b/backends/maweb.md
index d713d82..fe430db 100644
--- a/backends/maweb.md
+++ b/backends/maweb.md
@@ -2,8 +2,7 @@
This backend connects directly with the integrated *MA Web Remote* of MA Lighting consoles and OnPC
instances (GrandMA2 / GrandMA2 OnPC / GrandMA Dot2 / GrandMA Dot2 OnPC).
-It grants read-write access to the console's playback faders and buttons as well as write access to
-the command line buttons.
+It grants read-write access to the console's playback controls as well as write access to the command line.
#### Setting up the console
@@ -16,7 +15,9 @@ Web Remote. Set a web remote password using the option below the activation sett
#### Global configuration
-The `maweb` backend does not take any global configuration.
+| Option | Example value | Default value | Description |
+|---------------|-----------------------|-----------------------|---------------------------------------------------------------|
+| `interval` | `100` | `50` | Query interval for input data polling (in msec) |
#### Instance configuration
@@ -28,39 +29,44 @@ The `maweb` backend does not take any global configuration.
#### Channel specification
-Currently, three types of channels can be assigned
+Currently, three types of MA controls can be assigned, with each having some subcontrols
+
+* Fader executor
+* Button executor
+* Command line buttons
##### Executors
* For the GrandMA2, executors are arranged in pages, with each page having 90 fader executors (numbered 1 through 90)
and 90 button executors (numbered 101 through 190).
- * A fader executor consists of a `fader`, two buttons above it (`upper`, `lower`) and one `flash` button below it.
- * A button executor consists of a `button` control.
+ * A fader executor consists of a `fader`, two buttons above it (`upper`, `lower`) and one `button` below it.
+ * A button executor consists of a `button` control and a virtual `fader` (visible on the console in the "Action Buttons" view).
* For the dot2, executors are also arranged in pages, but the controls are non-obviously numbered.
* For the faders, they are numerically right-to-left from the Core Fader section (Faders 6 to 1) over the F-Wing 1 (Faders 13 to 6) to
F-Wing 2 (Faders 21 to 14).
* Above the fader sections are two rows of 21 `button` executors, numbered 122 through 101 (upper row) and 222 through 201 (lower row),
in the same order as the faders are.
* Fader executors have two buttons below them (`upper` and `lower`).
- * The button executor section consists of six rows of 18 buttons, divided into two button wings. Buttons on the wings
+ * The button executor section consists of six rows of 16 buttons, divided into two button wings. Buttons on the wings
are once again numbered right-to-left.
- * B-Wing 1 has `button` executors 308 to 301 (top row), 408 to 401 (second row), and so on until 808 through 801 (bottom row)
+ * B-Wing 1 has `button` controls 308 to 301 (top row), 408 to 401 (second row), and so on until 808 through 801 (bottom row)
* B-Wing 2 has 316 to 309 (top row) through 816 to 809 (bottom row)
When creating a new show, only the first page is created and active. Additional pages have to be created explicitly within
-the console before being usable.
+the console before being usable. `fader` controls, when mapped as outputs from the MA, output their value, `button` controls
+output 1 when the corresponding executor is running, 0 otherwise.
These controls can be addressed like
```
mw1.page1.fader5 > mw1.page1.upper5
-mw1.page3.lower3 > mw1.page2.flash2
+mw1.page3.lower3 > mw1.page2.button2
```
A button executor can likewise be mapped using the syntax
```
-mw1.page2.button103 > mw1.page3.button101
+mw1.page2.button103 > mw1.page3.fader101
mw1.page2.button803 > mw1.page3.button516
```
@@ -99,10 +105,12 @@ Since this may be a problem on some platforms, the backend can be built with thi
to set arbitrary passwords. The backend will always try to log in with the default password `midimonster` in this case. The user name is still
configurable.
+Data input from the console is done by actively querying the state of all mapped controls, which is resource-intensive if done
+at low latency. A lower input interval value will produce data with lower latency, at the cost of network & CPU usage.
+Higher values will make the input "step" more, but will not consume as many CPU cycles and network bandwidth.
+
This backend is currently in active development. It therefore has some limitations:
* It outputs a lot of debug information
-* It currently is write-only, channel events are only sent to the MA, not generated by it
-* Fader executors (and their buttons) seem to work, I haven't tested button executors yet.
* Command line events are sent, but I'm not sure they're being handled yet
-* I have so far only tested it with GradMA2 OnPC
+* For the dot2, currently only the Core & F-Wings are supported for input from the console, not the B-Wings
diff --git a/backends/midi.h b/backends/midi.h
index 5ec17ea..6c3fcf9 100644
--- a/backends/midi.h
+++ b/backends/midi.h
@@ -24,4 +24,5 @@ typedef union {
uint8_t control;
} fields;
uint64_t label;
-} midi_channel_ident; \ No newline at end of file
+} midi_channel_ident;
+
diff --git a/backends/osc.h b/backends/osc.h
index ab19463..dd5afb0 100644
--- a/backends/osc.h
+++ b/backends/osc.h
@@ -73,4 +73,5 @@ typedef union {
uint32_t parameter;
} fields;
uint64_t label;
-} osc_channel_ident; \ No newline at end of file
+} osc_channel_ident;
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 06:16:36 +0000