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authorDavid Robillard <d@drobilla.net>2012-05-31 06:23:57 +0000
committerDavid Robillard <d@drobilla.net>2012-05-31 06:23:57 +0000
commit7b20413c84b14d2c2bc1037bb08134dcdf152ddb (patch)
treec7c339d6c4d0d26b01e654163e7a8a203f62baf4 /src/product.c
parent46caaf6b96f185a4a25d1d12fc85720a03220e97 (diff)
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Umm... commit pretty much all the work of the past few days. Again.
git-svn-id: http://svn.drobilla.net/lad/trunk/plugins/blop.lv2@4488 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/product.c')
-rw-r--r--src/product.c126
1 files changed, 82 insertions, 44 deletions
diff --git a/src/product.c b/src/product.c
index 0b892a1..3f83af9 100644
--- a/src/product.c
+++ b/src/product.c
@@ -18,16 +18,22 @@
*/
#include <stdlib.h>
+#include "lv2/lv2plug.in/ns/ext/morph/morph.h"
#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+#include "uris.h"
#define PRODUCT_MULTIPLICAND 0
#define PRODUCT_MULTIPLIER 1
#define PRODUCT_PRODUCT 2
typedef struct {
- float* input1;
- float* input2;
- float* output;
+ float* input1;
+ float* input2;
+ float* output;
+ uint32_t input1_is_cv;
+ uint32_t input2_is_cv;
+ uint32_t output_is_cv;
+ URIs uris;
} Product;
static void
@@ -56,6 +62,51 @@ connect_port(LV2_Handle instance,
}
}
+static LV2_Morph_Status
+morph_port(LV2_Handle instance,
+ uint32_t port,
+ LV2_URID type,
+ const LV2_Morph_Property*const* properties)
+{
+ Product* plugin = (Product*)instance;
+
+ if (type != plugin->uris.lv2_ControlPort &&
+ type != plugin->uris.lv2_CVPort) {
+ return LV2_MORPH_ERR_BAD_TYPE;
+ }
+
+ switch (port) {
+ case PRODUCT_MULTIPLICAND:
+ plugin->input1_is_cv = (type == plugin->uris.lv2_CVPort);
+ break;
+ case PRODUCT_MULTIPLIER:
+ plugin->input2_is_cv = (type == plugin->uris.lv2_CVPort);
+ break;
+ default:
+ return LV2_MORPH_ERR_BAD_PORT;
+ }
+
+ plugin->output_is_cv = plugin->input1_is_cv || plugin->input2_is_cv;
+ return LV2_MORPH_SUCCESS;
+}
+
+static LV2_URID
+port_type(LV2_Handle instance,
+ uint32_t port,
+ LV2_Morph_Property*const* properties)
+{
+ Product* plugin = (Product*)instance;
+
+ switch (port) {
+ case PRODUCT_PRODUCT:
+ return (plugin->output_is_cv
+ ? plugin->uris.lv2_CVPort
+ : plugin->uris.lv2_ControlPort);
+ default:
+ return 0;
+ }
+}
+
static LV2_Handle
instantiate(const LV2_Descriptor* descriptor,
double sample_rate,
@@ -63,77 +114,64 @@ instantiate(const LV2_Descriptor* descriptor,
const LV2_Feature* const* features)
{
Product* plugin = (Product*)malloc(sizeof(Product));
+ if (!plugin) {
+ return NULL;
+ }
+
+ plugin->input1_is_cv = 0;
+ plugin->input2_is_cv = 0;
+ plugin->output_is_cv = 0;
+
+ map_uris(&plugin->uris, features);
return (LV2_Handle)plugin;
}
static void
-runProduct_iaia_oa(LV2_Handle instance,
- uint32_t sample_count)
+run(LV2_Handle instance,
+ uint32_t sample_count)
{
Product* plugin = (Product*)instance;
- /* First Input (array of floats of length sample_count) */
+ /* First Input (array of floats of length 1 or sample_count) */
const float* input1 = plugin->input1;
- /* Second Input (array of floats of length sample_count) */
+ /* Second Input (array of floats of length 1 or sample_count) */
const float* input2 = plugin->input2;
/* Output (array of floats of length sample_count) */
float* output = plugin->output;
- for (uint32_t s = 0; s < sample_count; ++s) {
- output[s] = input1[s] * input2[s];
+ if (!plugin->output_is_cv) { /* TODO: Avoid this branch */
+ sample_count = 1;
}
-}
-
-static void
-runProduct_iaic_oa(LV2_Handle instance,
- uint32_t sample_count)
-{
- Product* plugin = (Product*)instance;
-
- /* First Input (array of floats of length sample_count) */
- const float* input1 = plugin->input1;
-
- /* Second Input (float value) */
- const float input2 = *(plugin->input2);
-
- /* Output (array of floats of length sample_count) */
- float* output = plugin->output;
for (uint32_t s = 0; s < sample_count; ++s) {
- output[s] = input1[s] * input2;
+ const float in1 = input1[s * plugin->input1_is_cv];
+ const float in2 = input2[s * plugin->input2_is_cv];
+ output[s] = in1 * in2;
}
}
-static void
-runProduct_icic_oc(LV2_Handle instance,
- uint32_t sample_count)
+static const void*
+extension_data(const char* uri)
{
- Product* plugin = (Product*)instance;
-
- /* First Input (float value) */
- const float input1 = *(plugin->input1);
-
- /* Second Input (float value) */
- const float input2 = *(plugin->input2);
-
- /* Output (pointer to float value) */
- float* output = plugin->output;
-
- output[0] = input1 * input2;
+ static const LV2_Morph_Interface morph = { morph_port, port_type };
+ if (!strcmp(uri, LV2_MORPH__interface)) {
+ return &morph;
+ }
+ return NULL;
}
static const LV2_Descriptor descriptor = {
- "http://drobilla.net/plugins/blip/product",
+ "http://drobilla.net/plugins/blop/product",
instantiate,
connect_port,
NULL,
- runProduct_iaia_oa,
+ run,
NULL,
cleanup,
- NULL,
+ extension_data,
};
LV2_SYMBOL_EXPORT const LV2_Descriptor*