vanja/neural-amp-modeler-lv2
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Load models using LV2 work scheduler

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This commit is contained in:
Mike Oliphant
2023-03-13 12:48:35 -07:00
parent 4ea184cf05
commit 73975aeef6
3 changed files with 94 additions and 43 deletions
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src/nam_lv2.cpp
+3 -27
View File
@@ -12,11 +12,7 @@
#include "nam_plugin.h"
// LV2 Functions
static LV2_Handle instantiate(
const LV2_Descriptor*,
double rate,
const char*,
const LV2_Feature* const* features
static LV2_Handle instantiate(const LV2_Descriptor*, double rate, const char*, const LV2_Feature* const* features
) {
try
{
@@ -55,29 +51,9 @@ static void cleanup(LV2_Handle instance)
delete static_cast<NAM::Plugin*>(instance);
}
static LV2_Worker_Status
work(LV2_Handle instance,
LV2_Worker_Respond_Function respond,
LV2_Worker_Respond_Handle handle,
uint32_t size,
const void* data)
static const void* extension_data(const char* uri)
{
return LV2_WORKER_SUCCESS;
}
static LV2_Worker_Status
work_response(LV2_Handle instance,
uint32_t size,
const void* data)
{
return LV2_WORKER_SUCCESS;
}
static const void*
extension_data(const char* uri)
{
static const LV2_Worker_Interface worker = { work, work_response, NULL };
static const LV2_Worker_Interface worker = { NAM::Plugin::work, NAM::Plugin::work_response, NULL };
if (!strcmp(uri, LV2_WORKER__interface))
return &worker;
src/nam_plugin.cpp
+74 -15
View File
@@ -52,10 +52,71 @@ namespace NAM {
return true;
}
void Plugin::process(uint32_t n_samples) noexcept {
if (ports.control) {
LV2_ATOM_SEQUENCE_FOREACH(ports.control, event) {
if (event->body.type == uris.atom_Object) {
LV2_Worker_Status Plugin::work(LV2_Handle instance, LV2_Worker_Respond_Function respond, LV2_Worker_Respond_Handle handle,
uint32_t size, const void* data)
{
switch (*((const uint32_t*)data))
{
case kWorkTypeLoad:
try
{
auto msg = reinterpret_cast<const LV2LoadModelMsg*>(data);
auto nam = static_cast<NAM::Plugin*>(instance);
//nam->currentModel = get_dsp("C://Users//oliph//AppData//Roaming//GuitarSim//NAM//JCM2000Crunch.nam");
nam->stagedModel = get_dsp(msg->path);
LV2WorkType response = kWorkTypeSwitch;
respond(handle, sizeof(response), &response);
return LV2_WORKER_SUCCESS;
}
catch (std::exception& e)
{
}
break;
}
return LV2_WORKER_ERR_UNKNOWN;
}
LV2_Worker_Status Plugin::work_response(LV2_Handle instance, uint32_t size, const void* data)
{
switch (*((const uint32_t*)data))
{
case kWorkTypeSwitch:
try
{
auto nam = static_cast<NAM::Plugin*>(instance);
nam->currentModel = std::move(nam->stagedModel);
nam->stagedModel = nullptr;
return LV2_WORKER_SUCCESS;
}
catch (std::exception& e)
{
}
break;
}
return LV2_WORKER_ERR_UNKNOWN;
}
void Plugin::process(uint32_t n_samples) noexcept
{
if (ports.control)
{
LV2_ATOM_SEQUENCE_FOREACH(ports.control, event)
{
if (event->body.type == uris.atom_Object)
{
const auto obj = reinterpret_cast<LV2_Atom_Object*>(&event->body);
if (obj->body.otype == uris.patch_Set)
@@ -71,15 +132,13 @@ namespace NAM {
{
lv2_atom_object_get(obj, uris.patch_value, &file_path, 0);
if (file_path && (file_path->size > 0))
if (file_path && (file_path->size > 0) && (file_path->size < 1024))
{
try
{
namModel = get_dsp((const char*)LV2_ATOM_BODY_CONST(file_path));
}
catch (std::exception& e)
{
}
LV2LoadModelMsg msg = { kWorkTypeLoad, {} };
memcpy(msg.path, (const char*)LV2_ATOM_BODY_CONST(file_path), file_path->size);
schedule->schedule_work(schedule->handle, sizeof(msg), &msg);
}
}
}
@@ -88,7 +147,7 @@ namespace NAM {
}
}
if (namModel == nullptr)
if (currentModel == nullptr)
{
for (unsigned int i = 0; i < n_samples; i++)
{
@@ -97,8 +156,8 @@ namespace NAM {
}
else
{
namModel->process(ports.audio_in, ports.audio_out, n_samples, 1.0, 1.0, mNAMParams);
namModel->finalize_(n_samples);
currentModel->process(ports.audio_in, ports.audio_out, n_samples, 1.0, 1.0, mNAMParams);
currentModel->finalize_(n_samples);
}
}
}
src/nam_plugin.h
+17 -1
View File
@@ -23,6 +23,16 @@
namespace NAM {
enum LV2WorkType {
kWorkTypeLoad,
kWorkTypeSwitch
};
struct LV2LoadModelMsg {
LV2WorkType type;
char path[1024];
};
class Plugin {
public:
struct Ports {
@@ -38,7 +48,8 @@ namespace NAM {
LV2_Log_Logger logger;
LV2_Worker_Schedule* schedule;
std::unique_ptr<::DSP> namModel;
std::unique_ptr<::DSP> currentModel;
std::unique_ptr<::DSP> stagedModel;
std::unordered_map<std::string, double> mNAMParams =
{
@@ -53,6 +64,11 @@ namespace NAM {
bool initialize(double rate, const LV2_Feature* const* features) noexcept;
void process(uint32_t n_samples) noexcept;
static LV2_Worker_Status work(LV2_Handle instance, LV2_Worker_Respond_Function respond, LV2_Worker_Respond_Handle handle,
uint32_t size, const void* data);
static LV2_Worker_Status work_response(LV2_Handle instance, uint32_t size, const void* data);
private:
struct URIs {
LV2_URID atom_Object;