summaryrefslogtreecommitdiffstats
path: root/test/test.lv2/test.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/test.lv2/test.c')
-rw-r--r--test/test.lv2/test.c394
1 files changed, 394 insertions, 0 deletions
diff --git a/test/test.lv2/test.c b/test/test.lv2/test.c
new file mode 100644
index 0000000..d16e4a9
--- /dev/null
+++ b/test/test.lv2/test.c
@@ -0,0 +1,394 @@
+/*
+ Lilv Test Plugin
+ Copyright 2011-2017 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#define _POSIX_C_SOURCE 200809L
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/state/state.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+#ifdef _WIN32
+# include <io.h>
+# define mkstemp(pat) _mktemp(pat)
+#endif
+
+#define TEST_URI "http://example.org/lilv-test-plugin"
+
+#define TMP_TEMPLATE "lilv_testXXXXXX"
+
+enum {
+ TEST_INPUT = 0,
+ TEST_OUTPUT = 1,
+ TEST_CONTROL = 2
+};
+
+typedef struct {
+ LV2_URID_Map* map;
+
+ struct {
+ LV2_URID atom_Float;
+ } uris;
+
+ char tmp_file_path[sizeof(TMP_TEMPLATE)];
+ char* rec_file_path;
+ FILE* rec_file;
+
+ float* input;
+ float* output;
+ unsigned num_runs;
+} Test;
+
+static void
+cleanup(LV2_Handle instance)
+{
+ Test* test = (Test*)instance;
+ if (test->rec_file) {
+ fclose(test->rec_file);
+ }
+ free(test->rec_file_path);
+ free(instance);
+}
+
+static void
+connect_port(LV2_Handle instance,
+ uint32_t port,
+ void* data)
+{
+ Test* test = (Test*)instance;
+ switch (port) {
+ case TEST_INPUT:
+ test->input = (float*)data;
+ break;
+ case TEST_OUTPUT:
+ test->output = (float*)data;
+ break;
+ case TEST_CONTROL:
+ test->output = (float*)data;
+ break;
+ default:
+ break;
+ }
+}
+
+static LV2_Handle
+instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* path,
+ const LV2_Feature* const* features)
+{
+ Test* test = (Test*)calloc(1, sizeof(Test));
+ if (!test) {
+ return NULL;
+ }
+
+ strncpy(test->tmp_file_path, TMP_TEMPLATE, strlen(TMP_TEMPLATE) + 1);
+ mkstemp(test->tmp_file_path);
+
+ LV2_State_Make_Path* make_path = NULL;
+
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
+ test->map = (LV2_URID_Map*)features[i]->data;
+ test->uris.atom_Float = test->map->map(
+ test->map->handle, LV2_ATOM__Float);
+ } else if (!strcmp(features[i]->URI, LV2_STATE__makePath)) {
+ make_path = (LV2_State_Make_Path*)features[i]->data;
+ }
+ }
+
+ if (!test->map) {
+ fprintf(stderr, "Host does not support urid:map\n");
+ free(test);
+ return NULL;
+ }
+
+ if (make_path) {
+ test->rec_file_path = make_path->path(make_path->handle, "recfile");
+ if (!(test->rec_file = fopen(test->rec_file_path, "w"))) {
+ fprintf(stderr, "ERROR: Failed to open rec file\n");
+ }
+ fprintf(test->rec_file, "instantiate\n");
+ }
+
+ return (LV2_Handle)test;
+}
+
+static void
+run(LV2_Handle instance,
+ uint32_t sample_count)
+{
+ Test* test = (Test*)instance;
+ *test->output = *test->input;
+ if (sample_count == 1) {
+ ++test->num_runs;
+ } else if (sample_count == 2 && test->rec_file) {
+ // Append to rec file (changes size)
+ fprintf(test->rec_file, "run\n");
+ } else if (sample_count == 3 && test->rec_file) {
+ // Change the first byte of rec file (doesn't change size)
+ fseek(test->rec_file, 0, SEEK_SET);
+ fprintf(test->rec_file, "X");
+ fseek(test->rec_file, 0, SEEK_END);
+ }
+}
+
+static uint32_t
+map_uri(Test* plugin, const char* uri)
+{
+ return plugin->map->map(plugin->map->handle, uri);
+}
+
+static LV2_State_Status
+save(LV2_Handle instance,
+ LV2_State_Store_Function store,
+ void* callback_data,
+ uint32_t flags,
+ const LV2_Feature* const* features)
+{
+ Test* plugin = (Test*)instance;
+
+ LV2_State_Map_Path* map_path = NULL;
+ LV2_State_Make_Path* make_path = NULL;
+ for (int i = 0; features && features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_STATE__mapPath)) {
+ map_path = (LV2_State_Map_Path*)features[i]->data;
+ } else if (!strcmp(features[i]->URI, LV2_STATE__makePath)) {
+ make_path = (LV2_State_Make_Path*)features[i]->data;
+ }
+ }
+
+ store(callback_data,
+ map_uri(plugin, "http://example.org/greeting"),
+ "hello",
+ strlen("hello") + 1,
+ map_uri(plugin, LV2_ATOM__String),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ const uint32_t urid = map_uri(plugin, "http://example.org/urivalue");
+ store(callback_data,
+ map_uri(plugin, "http://example.org/uri"),
+ &urid,
+ sizeof(uint32_t),
+ map_uri(plugin, LV2_ATOM__URID),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ store(callback_data,
+ map_uri(plugin, "http://example.org/num-runs"),
+ &plugin->num_runs,
+ sizeof(plugin->num_runs),
+ map_uri(plugin, LV2_ATOM__Int),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ const float two = 2.0f;
+ store(callback_data,
+ map_uri(plugin, "http://example.org/two"),
+ &two,
+ sizeof(two),
+ map_uri(plugin, LV2_ATOM__Float),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ const uint32_t affirmative = 1;
+ store(callback_data,
+ map_uri(plugin, "http://example.org/true"),
+ &affirmative,
+ sizeof(affirmative),
+ map_uri(plugin, LV2_ATOM__Bool),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ const uint32_t negative = 0;
+ store(callback_data,
+ map_uri(plugin, "http://example.org/false"),
+ &negative,
+ sizeof(negative),
+ map_uri(plugin, LV2_ATOM__Bool),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ const uint8_t blob[] = "I am a blob of arbitrary data.";
+ store(callback_data,
+ map_uri(plugin, "http://example.org/blob"),
+ blob,
+ sizeof(blob),
+ map_uri(plugin, "http://example.org/SomeUnknownType"),
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ if (map_path) {
+ FILE* file = fopen(plugin->tmp_file_path, "w");
+ fprintf(file, "Hello\n");
+ fclose(file);
+ char* apath = map_path->abstract_path(map_path->handle,
+ plugin->tmp_file_path);
+ char* apath2 = map_path->abstract_path(map_path->handle,
+ plugin->tmp_file_path);
+ if (strcmp(apath, apath2)) {
+ fprintf(stderr, "ERROR: Path %s != %s\n", apath, apath2);
+ }
+
+ store(callback_data,
+ map_uri(plugin, "http://example.org/extfile"),
+ apath,
+ strlen(apath) + 1,
+ map_uri(plugin, LV2_ATOM__Path),
+ LV2_STATE_IS_POD);
+
+ free(apath);
+ free(apath2);
+
+ if (plugin->rec_file) {
+ fflush(plugin->rec_file);
+ apath = map_path->abstract_path(map_path->handle,
+ plugin->rec_file_path);
+
+ store(callback_data,
+ map_uri(plugin, "http://example.org/recfile"),
+ apath,
+ strlen(apath) + 1,
+ map_uri(plugin, LV2_ATOM__Path),
+ LV2_STATE_IS_POD);
+
+ free(apath);
+ }
+
+ if (make_path) {
+ char* spath = make_path->path(make_path->handle, "save");
+ FILE* sfile = fopen(spath, "w");
+ fprintf(sfile, "save");
+ fclose(sfile);
+
+ apath = map_path->abstract_path(map_path->handle, spath);
+ store(callback_data,
+ map_uri(plugin, "http://example.org/save-file"),
+ apath,
+ strlen(apath) + 1,
+ map_uri(plugin, LV2_ATOM__Path),
+ LV2_STATE_IS_POD);
+ free(apath);
+ free(spath);
+ }
+ }
+
+ return LV2_STATE_SUCCESS;
+}
+
+static LV2_State_Status
+restore(LV2_Handle instance,
+ LV2_State_Retrieve_Function retrieve,
+ void* callback_data,
+ uint32_t flags,
+ const LV2_Feature* const* features)
+{
+ Test* plugin = (Test*)instance;
+
+ LV2_State_Map_Path* map_path = NULL;
+ for (int i = 0; features && features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_STATE__mapPath)) {
+ map_path = (LV2_State_Map_Path*)features[i]->data;
+ }
+ }
+
+ size_t size;
+ uint32_t type;
+ uint32_t valflags;
+
+ plugin->num_runs = *(int32_t*)retrieve(
+ callback_data,
+ map_uri(plugin, "http://example.org/num-runs"),
+ &size, &type, &valflags);
+
+ if (!map_path) {
+ return LV2_STATE_ERR_NO_FEATURE;
+ }
+
+ char* apath = (char*)retrieve(
+ callback_data,
+ map_uri(plugin, "http://example.org/extfile"),
+ &size, &type, &valflags);
+
+ if (valflags != LV2_STATE_IS_POD) {
+ fprintf(stderr, "error: Restored bad file flags\n");
+ return LV2_STATE_ERR_BAD_FLAGS;
+ }
+
+ if (apath) {
+ char* path = map_path->absolute_path(map_path->handle, apath);
+ FILE* f = fopen(path, "r");
+ char str[8];
+ size_t n_read = fread(str, 1, sizeof(str), f);
+ fclose(f);
+ if (strncmp(str, "Hello\n", n_read)) {
+ fprintf(stderr, "error: Restored bad file contents `%s' != `Hello'\n",
+ str);
+ }
+ free(path);
+ }
+
+ apath = (char*)retrieve(
+ callback_data,
+ map_uri(plugin, "http://example.org/save-file"),
+ &size, &type, &valflags);
+ if (apath) {
+ char* spath = map_path->absolute_path(map_path->handle, apath);
+ FILE* sfile = fopen(spath, "r");
+ if (!sfile) {
+ fprintf(stderr, "error: Failed to open save file %s\n", spath);
+ } else {
+ fclose(sfile);
+ }
+ free(spath);
+ } else {
+ fprintf(stderr, "error: Failed to restore save file.\n");
+ }
+
+ return LV2_STATE_SUCCESS;
+}
+
+static const void*
+extension_data(const char* uri)
+{
+ static const LV2_State_Interface state = { save, restore };
+ if (!strcmp(uri, LV2_STATE__interface)) {
+ return &state;
+ }
+ return NULL;
+}
+
+static const LV2_Descriptor descriptor = {
+ TEST_URI,
+ instantiate,
+ connect_port,
+ NULL, // activate,
+ run,
+ NULL, // deactivate,
+ cleanup,
+ extension_data
+};
+
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor* lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-10-31 06:52:57 +0000