#define _MIDI_MAPPER_UTIL_H 1
#include "midi_mapping.pb.h"
+#include "shared/midi_device.h"
#include <google/protobuf/descriptor.h>
template <class Proto>
-inline bool match_controller_helper(const Proto &msg, int field_number, int controller)
+inline int get_controller_mapping_helper(const Proto &msg, int field_number, int default_value)
{
using namespace google::protobuf;
const FieldDescriptor *descriptor = msg.GetDescriptor()->FindFieldByNumber(field_number);
const Reflection *reflection = msg.GetReflection();
if (!reflection->HasField(msg, descriptor)) {
- return false;
+ return default_value;
}
const MIDIControllerProto &controller_proto =
static_cast<const MIDIControllerProto &>(reflection->GetMessage(msg, descriptor));
- return (controller_proto.controller_number() == controller);
+ return controller_proto.controller_number();
}
template <class Proto>
-inline bool match_button_helper(const Proto &msg, int field_number, int note)
+inline bool match_controller_helper(const Proto &msg, int field_number, int controller)
+{
+ return (get_controller_mapping_helper(msg, field_number, -1) == controller);
+}
+
+template <class Proto>
+inline int get_button_mapping_helper(const Proto &msg, int field_number, int default_value)
{
using namespace google::protobuf;
const FieldDescriptor *descriptor = msg.GetDescriptor()->FindFieldByNumber(field_number);
const Reflection *reflection = msg.GetReflection();
if (!reflection->HasField(msg, descriptor)) {
- return false;
+ return default_value;
}
const MIDIButtonProto &button_proto =
static_cast<const MIDIButtonProto &>(reflection->GetMessage(msg, descriptor));
- return (button_proto.note_number() == note);
+ return button_proto.note_number();
+}
+
+template <class Proto>
+inline bool match_button_helper(const Proto &msg, int field_number, int note)
+{
+ return (get_button_mapping_helper(msg, field_number, -1) == note);
}
template <class Proto>
return reflection->GetInt32(msg, bank_descriptor) == bank;
}
-// Find what MIDI note the given light (as given by field_number) is mapped to, and enable it.
template <class Proto>
-void activate_mapped_light(const Proto &msg, int field_number, std::set<unsigned> *active_lights)
+inline MIDILightProto get_light_mapping_helper(const Proto &msg, int field_number)
{
using namespace google::protobuf;
const FieldDescriptor *descriptor = msg.GetDescriptor()->FindFieldByNumber(field_number);
const Reflection *reflection = msg.GetReflection();
if (!reflection->HasField(msg, descriptor)) {
+ return MIDILightProto();
+ }
+ return static_cast<const MIDILightProto &>(reflection->GetMessage(msg, descriptor));
+}
+
+// Find what MIDI note the given light (as given by field_number) is mapped to, and enable it.
+template <class Proto>
+void activate_mapped_light(const Proto &msg, int field_number, std::map<MIDIDevice::LightKey, uint8_t> *active_lights)
+{
+ MIDILightProto light_proto = get_light_mapping_helper(msg, field_number);
+ if (!light_proto.has_note_number()) {
return;
}
- const MIDILightProto &light_proto =
- static_cast<const MIDILightProto &>(reflection->GetMessage(msg, descriptor));
- active_lights->insert(light_proto.note_number());
+ active_lights->emplace(MIDIDevice::LightKey{MIDIDevice::LightKey::NOTE, unsigned(light_proto.note_number())},
+ light_proto.velocity());
+}
+
+inline double map_controller_to_float(int controller, int val)
+{
+ if (controller == MIDIReceiver::PITCH_BEND_CONTROLLER) {
+ // We supposedly go from -8192 to 8191 (inclusive), but there are
+ // controllers that only have 10-bit precision and do the upconversion
+ // to 14-bit wrong (just padding with zeros), making 8176 the highest
+ // attainable value. We solve this by making the effective range
+ // -8176..8176 (inclusive).
+ if (val <= -8176) {
+ return 0.0;
+ } else if (val >= 8176) {
+ return 1.0;
+ } else {
+ return 0.5 * (double(val) / 8176.0) + 0.5;
+ }
+ }
+
+ // Slightly hackish mapping so that we can represent exactly 0.0, 0.5 and 1.0.
+ if (val <= 0) {
+ return 0.0;
+ } else if (val >= 127) {
+ return 1.0;
+ } else {
+ return (val + 0.5) / 127.0;
+ }
}
#endif // !defined(_MIDI_MAPPER_UTIL_H)