X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=inline;f=src%2Foutput%2Fsrzip.c;h=43dbd16b0a05da2f852ada1d4c9d57d46dc4ddce;hb=815685462fdab21a390b5aecc253b92753439f06;hp=a03f003e8503578927561ea09fcfffedda583d35;hpb=26918dced08eacbd851c63f9b4459d4c764b540f;p=libsigrok.git diff --git a/src/output/srzip.c b/src/output/srzip.c index a03f003e..43dbd16b 100644 --- a/src/output/srzip.c +++ b/src/output/srzip.c @@ -33,7 +33,8 @@ struct out_context { gboolean zip_created; uint64_t samplerate; char *filename; - gint min_analog_index; + gint first_analog_index; + gint *analog_index_map; }; static int init(struct sr_output *o, GHashTable *options) @@ -66,7 +67,9 @@ static int zip_create(const struct sr_output *o) const char *devgroup; char *s, *metabuf; gsize metalen; - guint logic_channels = 0, analog_channels = 0; + guint logic_channels = 0, enabled_logic_channels = 0; + guint enabled_analog_channels = 0; + guint index; outc = o->priv; @@ -99,45 +102,65 @@ static int zip_create(const struct sr_output *o) SR_PACKAGE_VERSION_STRING); devgroup = "device 1"; - g_key_file_set_string(meta, devgroup, "capturefile", "logic-1"); - - s = sr_samplerate_string(outc->samplerate); - g_key_file_set_string(meta, devgroup, "samplerate", s); - g_free(s); - - outc->min_analog_index = -1; for (l = o->sdi->channels; l; l = l->next) { ch = l->data; + switch (ch->type) { - case SR_CHANNEL_LOGIC: - logic_channels++; - break; - case SR_CHANNEL_ANALOG: - if (outc->min_analog_index == -1 || - ch->index < outc->min_analog_index) - outc->min_analog_index = ch->index; - analog_channels++; - break; + case SR_CHANNEL_LOGIC: + if (ch->enabled) + enabled_logic_channels++; + logic_channels++; + break; + case SR_CHANNEL_ANALOG: + if (ch->enabled) + enabled_analog_channels++; + break; } } - g_key_file_set_integer(meta, devgroup, "total probes", logic_channels); - g_key_file_set_integer(meta, devgroup, "total analog", analog_channels); + /* When reading the file, the first index of the analog channels + * can only be deduced through the "total probes" count, so the + * first analog index must follow the last logic one, enabled or not. */ + if (enabled_logic_channels > 0) + outc->first_analog_index = logic_channels + 1; + else + outc->first_analog_index = 1; + + /* Only set capturefile and probes if we will actually save logic data. */ + if (enabled_logic_channels > 0) { + g_key_file_set_string(meta, devgroup, "capturefile", "logic-1"); + g_key_file_set_integer(meta, devgroup, "total probes", logic_channels); + } + + s = sr_samplerate_string(outc->samplerate); + g_key_file_set_string(meta, devgroup, "samplerate", s); + g_free(s); + + g_key_file_set_integer(meta, devgroup, "total analog", enabled_analog_channels); + + /* Make the array one entry larger than needed so we can use the final + * entry as terminator, which is set to -1. */ + outc->analog_index_map = g_malloc0(sizeof(gint) * (enabled_analog_channels + 1)); + outc->analog_index_map[enabled_analog_channels] = -1; + index = 0; for (l = o->sdi->channels; l; l = l->next) { ch = l->data; + if (!ch->enabled) + continue; + switch (ch->type) { - case SR_CHANNEL_LOGIC: - s = g_strdup_printf("probe%d", ch->index + 1); - break; - case SR_CHANNEL_ANALOG: - s = g_strdup_printf("analog%d", - ch->index - outc->min_analog_index + 1); - break; + case SR_CHANNEL_LOGIC: + s = g_strdup_printf("probe%d", ch->index + 1); + break; + case SR_CHANNEL_ANALOG: + outc->analog_index_map[index] = ch->index; + s = g_strdup_printf("analog%d", outc->first_analog_index + index); + index++; + break; } - if (ch->enabled) - g_key_file_set_string(meta, devgroup, s, ch->name); + g_key_file_set_string(meta, devgroup, s, ch->name); g_free(s); } @@ -298,17 +321,9 @@ static int zip_append_analog(const struct sr_output *o, float *chunkbuf; gsize chunksize; char *chunkname; - unsigned int next_chunk_num; + unsigned int next_chunk_num, index; outc = o->priv; - if (!(archive = zip_open(outc->filename, 0, NULL))) - return SR_ERR; - - if (zip_stat(archive, "metadata", 0, &zs) < 0) { - sr_err("Failed to open metadata: %s", zip_strerror(archive)); - zip_discard(archive); - return SR_ERR; - } /* TODO: support packets covering multiple channels */ if (g_slist_length(analog->meaning->channels) != 1) { @@ -317,8 +332,26 @@ static int zip_append_analog(const struct sr_output *o, } channel = analog->meaning->channels->data; - basename = g_strdup_printf("analog-1-%u", - channel->index - outc->min_analog_index + 1); + /* When reading the file, analog channels must be consecutive. + * Thus we need a global channel index map as we don't know in + * which order the channel data comes in. */ + for (index = 0; outc->analog_index_map[index] != -1; index++) + if (outc->analog_index_map[index] == channel->index) + break; + if (outc->analog_index_map[index] == -1) + return SR_ERR_ARG; /* Channel index was not in the list */ + + index += outc->first_analog_index; + + if (!(archive = zip_open(outc->filename, 0, NULL))) + return SR_ERR; + + if (zip_stat(archive, "metadata", 0, &zs) < 0) { + sr_err("Failed to open metadata: %s", zip_strerror(archive)); + goto err_zip_discard; + } + + basename = g_strdup_printf("analog-1-%u", index); baselen = strlen(basename); next_chunk_num = 1; num_files = zip_get_num_entries(archive, 0); @@ -335,9 +368,10 @@ static int zip_append_analog(const struct sr_output *o, chunksize = sizeof(float) * analog->num_samples; if (!(chunkbuf = g_try_malloc(chunksize))) - return SR_ERR; + goto err_free_basename; + if (sr_analog_to_float(analog, chunkbuf) != SR_OK) - return SR_ERR; + goto err_free_chunkbuf; analogsrc = zip_source_buffer(archive, chunkbuf, chunksize, FALSE); chunkname = g_strdup_printf("%s-%u", basename, next_chunk_num); @@ -346,16 +380,26 @@ static int zip_append_analog(const struct sr_output *o, if (i < 0) { sr_err("Failed to add chunk '%s': %s", chunkname, zip_strerror(archive)); zip_source_free(analogsrc); - zip_discard(archive); - return SR_ERR; + goto err_free_chunkbuf; } if (zip_close(archive) < 0) { sr_err("Error saving session file: %s", zip_strerror(archive)); - zip_discard(archive); - return SR_ERR; + goto err_free_chunkbuf; } + g_free(basename); + g_free(chunkbuf); + return SR_OK; + +err_free_chunkbuf: + g_free(chunkbuf); +err_free_basename: + g_free(basename); +err_zip_discard: + zip_discard(archive); + + return SR_ERR; } static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet, @@ -429,6 +473,7 @@ static int cleanup(struct sr_output *o) outc = o->priv; g_variant_unref(options[0].def); + g_free(outc->analog_index_map); g_free(outc->filename); g_free(outc); o->priv = NULL;