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get_hostinfo lv2

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This commit is contained in:
Paolo Marrone 2025-09-22 16:49:55 +02:00
parent 04187631ab
commit 7ee928210a
1 changed files with 45 additions and 35 deletions
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80
templates/lv2/src/lv2.c
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@ -72,6 +72,18 @@
# endif
#endif
#if defined(__linux__)
# define _GNU_SOURCE
# include <errno.h>
extern char *program_invocation_name;
#elif defined(__APPLE__)
# include <libproc.h>
# include <unistd.h>
#else
# include <windows.h>
# include <psapi.h>
#endif
#define CONTROL_INPUT_INDEX_OFFSET ( \
DATA_PRODUCT_AUDIO_INPUT_CHANNELS_N \
+ DATA_PRODUCT_AUDIO_OUTPUT_CHANNELS_N \
@ -95,6 +107,26 @@ static float adjust_param(size_t index, float value) {
}
#endif
static void save_hostname(char dest[128]) {
dest[0] = 0;
#if defined(__linux__)
strncpy(dest, program_invocation_name, 128);
#elif defined(__APPLE__)
pid_t pid = getpid();
if (proc_name(pid, dest, 128) <= 0) {
return;
}
#else
HANDLE process_handle = GetCurrentProcess();
if (GetModuleBaseNameA(process_handle, NULL, dest, 128) == 0) {
CloseHandle(process_handle);
return;
}
CloseHandle(process_handle);
#endif
dest[127] = 0;
}
typedef struct {
plugin p;
float sample_rate;
@ -140,6 +172,7 @@ typedef struct {
LV2_State_Store_Function state_store;
LV2_State_Handle state_handle;
#endif
char processname[128];
} plugin_instance;
static const char * get_bundle_path_cb(void *handle) {
@ -147,6 +180,11 @@ static const char * get_bundle_path_cb(void *handle) {
return instance->bundle_path;
}
static const char * get_hostinfo_cb(void *handle) {
plugin_instance *instance = (plugin_instance *)handle;
return instance->processname;
}
#ifdef DATA_STATE_DSP_CUSTOM
static void state_lock_cb(void *handle) {
plugin_instance * i = (plugin_instance *)handle;
@ -207,6 +245,8 @@ static LV2_Handle instantiate(const struct LV2_Descriptor * descriptor, double s
LV2_URID__map, &instance->map, true,
NULL);
save_hostname(instance->processname);
lv2_log_logger_set_map(&instance->logger, instance->map);
if (missing) {
lv2_log_error(&instance->logger, "Missing feature <%s>\n", missing);
@ -230,6 +270,7 @@ static LV2_Handle instantiate(const struct LV2_Descriptor * descriptor, double s
cbs.format = "lv2";
cbs.get_bindir = get_bundle_path_cb;
cbs.get_datadir = get_bundle_path_cb;
cbs.get_hostinfo = get_hostinfo_cb;
plugin_init(&instance->p, &cbs);
instance->sample_rate = (float)sample_rate;
@ -544,18 +585,6 @@ LV2_SYMBOL_EXPORT const LV2_Descriptor * lv2_descriptor(uint32_t index) {
#ifdef DATA_UI
#if defined(__linux__)
# define _GNU_SOURCE
# include <errno.h>
extern char *program_invocation_name;
#elif defined(__APPLE__)
# include <libproc.h>
# include <unistd.h>
#else
# include <windows.h>
# include <psapi.h>
#endif
typedef struct {
plugin_ui * ui;
char * bundle_path;
@ -573,30 +602,9 @@ static const char * ui_get_bundle_path_cb(void *handle) {
return instance->bundle_path;
}
static const char * ui_get_hostinfo(void *handle) {
#if defined(__linux__)
(void) handle;
return program_invocation_name;
#elif defined(__APPLE__)
static const char * ui_get_hostinfo_cb(void *handle) {
ui_instance *instance = (ui_instance *)handle;
pid_t pid = getpid();
instance->processname[0] = 0;
if (proc_name(pid, instance->processname, 128) <= 0) {
return NULL;
}
instance->processname[127] = 0;
return instance->processname;
#else
ui_instance *instance = (ui_instance *)handle;
HANDLE process_handle = GetCurrentProcess();
if (GetModuleBaseNameA(process_handle, NULL, instance->processname, 128) == 0) {
CloseHandle(process_handle);
return NULL;
}
CloseHandle(process_handle);
instance->processname[127] = 0;
return instance->processname;
#endif
}
# if DATA_PRODUCT_CONTROL_INPUTS_N > 0
@ -645,6 +653,8 @@ static LV2UI_Handle ui_instantiate(const LV2UI_Descriptor * descriptor, const ch
if (instance->bundle_path == NULL)
goto err_bundle_path;
save_hostname(instance->processname);
has_parent = 0;
parent = NULL;
# if DATA_PRODUCT_CONTROL_INPUTS_N > 0
@ -667,7 +677,7 @@ static LV2UI_Handle ui_instantiate(const LV2UI_Descriptor * descriptor, const ch
cbs.format = "lv2";
cbs.get_bindir = ui_get_bundle_path_cb;
cbs.get_datadir = ui_get_bundle_path_cb;
cbs.get_hostinfo = ui_get_hostinfo;
cbs.get_hostinfo = ui_get_hostinfo_cb;
# if DATA_PRODUCT_CONTROL_INPUTS_N > 0
cbs.set_parameter_begin = ui_set_parameter_begin_cb;
cbs.set_parameter = ui_set_parameter_cb;