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authorDavid Robillard <d@drobilla.net>2007-04-28 22:08:51 +0000
committerDavid Robillard <d@drobilla.net>2007-04-28 22:08:51 +0000
commit2afaf28258dc8b6546c6f1c762f0d401bb50b896 (patch)
tree6f8931492a406f47b260f6060bb2fdb4d71aa25e /utils
parent5d1f3ff25d5060fedfad4fb1b3fa956f478a043b (diff)
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Use index instead of variable name for selecting query variables (performance enhancement).
Improved ladspa2lv2, converting port hints and min/max/default values. git-svn-id: http://svn.drobilla.net/lad/slv2@481 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'utils')
-rw-r--r--utils/ladspa2lv2.c154
1 files changed, 128 insertions, 26 deletions
diff --git a/utils/ladspa2lv2.c b/utils/ladspa2lv2.c
index 713481f..304f70d 100644
--- a/utils/ladspa2lv2.c
+++ b/utils/ladspa2lv2.c
@@ -16,9 +16,13 @@
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
+#include <stdbool.h>
+#include <float.h>
+#include <math.h>
#include <ladspa.h>
#include <dlfcn.h>
#include <librdf.h>
@@ -30,26 +34,6 @@
librdf_world* world = NULL;
-LADSPA_Descriptor*
-load_ladspa_plugin(const char* lib_path, unsigned long index)
-{
- void* const handle = dlopen(lib_path, RTLD_LAZY);
- if (handle == NULL)
- return NULL;
-
- LADSPA_Descriptor_Function df
- = (LADSPA_Descriptor_Function)dlsym(handle, "ladspa_descriptor");
-
- if (df == NULL) {
- dlclose(handle);
- return NULL;
- }
-
- LADSPA_Descriptor* const descriptor = (LADSPA_Descriptor*)df(index);
-
- return descriptor;
-}
-
void
add_resource(librdf_model* model,
@@ -149,6 +133,126 @@ add_float(librdf_model* model,
}
+LADSPA_Descriptor*
+load_ladspa_plugin(const char* lib_path, unsigned long index)
+{
+ void* const handle = dlopen(lib_path, RTLD_LAZY);
+ if (handle == NULL)
+ return NULL;
+
+ LADSPA_Descriptor_Function df
+ = (LADSPA_Descriptor_Function)dlsym(handle, "ladspa_descriptor");
+
+ if (df == NULL) {
+ dlclose(handle);
+ return NULL;
+ }
+
+ LADSPA_Descriptor* const descriptor = (LADSPA_Descriptor*)df(index);
+
+ return descriptor;
+}
+
+
+void
+add_port_range(LADSPA_Descriptor* plugin,
+ unsigned long port_index,
+ librdf_model* model,
+ librdf_node* port)
+{
+ LADSPA_PortRangeHintDescriptor hint_descriptor
+ = plugin->PortRangeHints[port_index].HintDescriptor;
+
+ bool range_valid = false;
+ float upper, lower, normal;
+
+ /* Convert hints */
+
+ if (LADSPA_IS_HINT_SAMPLE_RATE(hint_descriptor)) {
+ add_resource(model, port, NS_LV2("portHint"), NS_LV2("sampleRate"));
+ upper = plugin->PortRangeHints[port_index].UpperBound;
+ lower = plugin->PortRangeHints[port_index].LowerBound;
+ range_valid = true;
+ }
+
+ if (LADSPA_IS_HINT_INTEGER(hint_descriptor)) {
+ add_resource(model, port, NS_LV2("portHint"), NS_LV2("integer"));
+ upper = plugin->PortRangeHints[port_index].UpperBound;
+ lower = plugin->PortRangeHints[port_index].LowerBound;
+ range_valid = true;
+ }
+
+ if (LADSPA_IS_HINT_TOGGLED(hint_descriptor)) {
+ add_resource(model, port, NS_LV2("portHint"), NS_LV2("toggled"));
+ upper = 1.0;
+ lower = 0.0;
+ range_valid = true;
+ }
+
+ if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
+ /* FLT_EPSILON is defined as the different between 1.0 and the minimum
+ * float greater than 1.0. So, if lower is < FLT_EPSILON, it will be 1.0
+ * and the logarithmic control will have a base of 1 and thus not change
+ */
+ if (range_valid && lower < FLT_EPSILON)
+ lower = FLT_EPSILON;
+ }
+
+
+ if (LADSPA_IS_HINT_HAS_DEFAULT(hint_descriptor)) {
+
+ bool valid = true;
+
+ if (range_valid && LADSPA_IS_HINT_DEFAULT_MINIMUM(hint_descriptor)) {
+ normal = lower;
+ } else if (range_valid && LADSPA_IS_HINT_DEFAULT_LOW(hint_descriptor)) {
+ if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
+ normal = exp(log(lower) * 0.75 + log(upper) * 0.25);
+ } else {
+ normal = lower * 0.75 + upper * 0.25;
+ }
+ } else if (range_valid && LADSPA_IS_HINT_DEFAULT_MIDDLE(hint_descriptor)) {
+ if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
+ normal = exp(log(lower) * 0.5 + log(upper) * 0.5);
+ } else {
+ normal = lower * 0.5 + upper * 0.5;
+ }
+ } else if (range_valid && LADSPA_IS_HINT_DEFAULT_HIGH(hint_descriptor)) {
+ if (LADSPA_IS_HINT_LOGARITHMIC(hint_descriptor)) {
+ normal = exp(log(lower) * 0.25 + log(upper) * 0.75);
+ } else {
+ normal = lower * 0.25 + upper * 0.75;
+ }
+ } else if (range_valid && LADSPA_IS_HINT_DEFAULT_MAXIMUM(hint_descriptor)) {
+ normal = upper;
+ } else if (LADSPA_IS_HINT_DEFAULT_0(hint_descriptor)) {
+ normal = 0.0;
+ } else if (LADSPA_IS_HINT_DEFAULT_1(hint_descriptor)) {
+ normal = 1.0;
+ } else if (LADSPA_IS_HINT_DEFAULT_100(hint_descriptor)) {
+ normal = 100.0;
+ } else if (LADSPA_IS_HINT_DEFAULT_440(hint_descriptor)) {
+ normal = 440.0;
+ } else {
+ valid = false;
+ }
+
+ if (valid)
+ add_float(model, port, NS_LV2("default"), normal);
+
+ } else { // No default hint
+
+ if (range_valid && LADSPA_IS_HINT_BOUNDED_BELOW(hint_descriptor)) {
+ normal = lower;
+ add_float(model, port, NS_LV2("default"), normal);
+ } else if (range_valid && LADSPA_IS_HINT_BOUNDED_ABOVE(hint_descriptor)) {
+ normal = upper;
+ add_float(model, port, NS_LV2("default"), normal);
+ }
+ }
+}
+
+
void
write_lv2_turtle(LADSPA_Descriptor* descriptor, const char* plugin_uri, const char* filename)
{
@@ -203,10 +307,6 @@ write_lv2_turtle(LADSPA_Descriptor* descriptor, const char* plugin_uri, const ch
NS_LV2("index"),
(int)i);
- add_resource(model, port_node,
- NS_RDF("type"),
- NS_LV2("Port"));
-
if (LADSPA_IS_PORT_INPUT(port_descriptor))
add_resource(model, port_node,
NS_RDF("type"),
@@ -219,15 +319,17 @@ write_lv2_turtle(LADSPA_Descriptor* descriptor, const char* plugin_uri, const ch
if (LADSPA_IS_PORT_AUDIO(port_descriptor))
add_resource(model, port_node,
NS_RDF("type"),
- NS_LV2("ControlPort"));
+ NS_LV2("AudioPort"));
else
add_resource(model, port_node,
NS_RDF("type"),
- NS_LV2("AudioPort"));
+ NS_LV2("ControlPort"));
add_string(model, port_node,
NS_LV2("name"),
descriptor->PortNames[i]);
+
+ add_port_range(descriptor, i, model, port_node);
}
librdf_serializer_serialize_model_to_file(serializer, filename, NULL, model);