X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fplugins%2Freasonablesynth.lv2%2Flv2.c;h=4698cb9131c795352289004d5be0fb1ac8afeba8;hb=432e0073f6d8a91edb213e535c47a7e4ff686284;hp=159f422c8560ad0b0e1b3ebe59c5b08358fcdfb9;hpb=664e715a002450ac0f079411f6f051c122a4322a;p=ardour.git

diff --git a/libs/plugins/reasonablesynth.lv2/lv2.c b/libs/plugins/reasonablesynth.lv2/lv2.c
index 159f422c85..4698cb9131 100644
--- a/libs/plugins/reasonablesynth.lv2/lv2.c
+++ b/libs/plugins/reasonablesynth.lv2/lv2.c
@@ -22,10 +22,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <time.h>
 
 /* LV2 */
 #include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
 #include "lv2/lv2plug.in/ns/ext/urid/urid.h"
 #include "lv2/lv2plug.in/ns/ext/midi/midi.h"
 
@@ -35,7 +36,7 @@
 static void *   synth_alloc      (void);
 static void     synth_init       (void *, double rate);
 static void     synth_free       (void *);
-static void     synth_parse_midi (void *, uint8_t *data, size_t size);
+static void     synth_parse_midi (void *, const uint8_t *data, const size_t size);
 static uint32_t synth_sound      (void *, uint32_t written, uint32_t nframes, float **out);
 
 #include "rsynth.c"
@@ -56,6 +57,7 @@ typedef struct {
 
   double SampleRateD;
   void *synth;
+  bool xmas;
 } RSynth;
 
 /* main LV2 */
@@ -66,6 +68,9 @@ instantiate(const LV2_Descriptor*     descriptor,
             const char*               bundle_path,
             const LV2_Feature* const* features)
 {
+  (void) descriptor; /* unused variable */
+  (void) bundle_path; /* unused variable */
+
   if (rate < 8000) {
     fprintf(stderr, "RSynth.lv2 error: unsupported sample-rate (must be > 8k)\n");
     return NULL;
@@ -95,6 +100,17 @@ instantiate(const LV2_Descriptor*     descriptor,
   self->synth = synth_alloc();
   synth_init(self->synth, rate);
 
+#ifndef PLATFORM_WINDOWS // easter egg is for sane platforms with native support for localtime_r only
+  struct tm date;
+  time_t now;
+  time(&now);
+  localtime_r(&now, &date);
+  if (getenv("ITSXMAS") || (date.tm_mon == 11 /*dec*/ && date.tm_mday == 25)) {
+    printf("reasonable synth.lv2 says: happy holidays!\n");
+    self->xmas = true;
+  }
+#endif
+
   return (LV2_Handle)self;
 }
 
@@ -131,18 +147,26 @@ run(LV2_Handle handle, uint32_t n_samples)
 
   /* Process incoming MIDI events */
   if (self->midiin) {
-    LV2_Atom_Event* ev = lv2_atom_sequence_begin(&(self->midiin)->body);
-    while(!lv2_atom_sequence_is_end(&(self->midiin)->body, (self->midiin)->atom.size, ev)) {
+    LV2_Atom_Event const* ev = (LV2_Atom_Event const*)((uintptr_t)((&(self->midiin)->body) + 1)); // lv2_atom_sequence_begin
+    while( // !lv2_atom_sequence_is_end
+        (const uint8_t*)ev < ((const uint8_t*) &(self->midiin)->body + (self->midiin)->atom.size)
+        )
+    {
       if (ev->body.type == self->midi_MidiEvent) {
-	if (written + BUFFER_SIZE_SAMPLES < ev->time.frames
-	    && ev->time.frames < n_samples) {
-	  /* first synthesize sound up until the message timestamp */
-	  written = synth_sound(self->synth, written, ev->time.frames, audio);
-	}
-	/* send midi message to synth */
-	synth_parse_midi(self->synth, (uint8_t*)(ev+1), ev->body.size);
+        if (written + BUFFER_SIZE_SAMPLES < ev->time.frames
+            && ev->time.frames < n_samples) {
+          /* first synthesize sound up until the message timestamp */
+          written = synth_sound(self->synth, written, ev->time.frames, audio);
+        }
+        /* send midi message to synth */
+        if (self->xmas) {
+          synth_parse_xmas(self->synth, (const uint8_t*)(ev+1), ev->body.size);
+        } else {
+          synth_parse_midi(self->synth, (const uint8_t*)(ev+1), ev->body.size);
+        }
       }
-      ev = lv2_atom_sequence_next(ev);
+      ev = (LV2_Atom_Event const*) // lv2_atom_sequence_next()
+	      ((uintptr_t)((const uint8_t*)ev + sizeof(LV2_Atom_Event) + ((ev->body.size + 7) & ~7)));
     }
   }
 
@@ -161,6 +185,7 @@ cleanup(LV2_Handle handle)
 static const void*
 extension_data(const char* uri)
 {
+  (void) uri; /* unused variable */
   return NULL;
 }
 
@@ -175,11 +200,15 @@ static const LV2_Descriptor descriptor = {
   extension_data
 };
 
-LV2_SYMBOL_EXPORT
+#if defined(COMPILER_MSVC)
+__declspec(dllexport)
+#else
+__attribute__ ((visibility ("default")))
+#endif
 const LV2_Descriptor*
-lv2_descriptor(uint32_t index)
+lv2_descriptor(uint32_t idx)
 {
-  switch (index) {
+  switch (idx) {
   case 0:
     return &descriptor;
   default:
@@ -187,4 +216,4 @@ lv2_descriptor(uint32_t index)
   }
 }
 
-/* vi:set ts=8 sts=2 sw=2: */
+/* vi:set ts=8 sts=2 sw=2 et: */