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lv2 gui done it seems

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This commit is contained in:
Stefano D'Angelo 2024-05-13 10:24:41 +02:00
parent 30587e26d1
commit 001bfe11da
2 changed files with 46 additions and 43 deletions
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80
templates/lv2/src/lv2.c
View File

@ -28,7 +28,10 @@ typedef struct {
#define TEMPLATE_HAS_UI
#include "data.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-function"
#include "plugin.h"
#pragma GCC diagnostic pop
#include "lv2/core/lv2.h"
#if DATA_PRODUCT_MIDI_INPUTS_N + DATA_PRODUCT_MIDI_OUTPUTS_N > 0
@ -49,6 +52,20 @@ typedef struct {
#include <pmmintrin.h>
#endif
static inline float clampf(float x, float m, float M) {
return x < m ? m : (x > M ? M : x);
}
static float straighten_param(size_t index, float value) {
if (param_data[index].flags & DATA_PARAM_BYPASS)
value = value > 0.f ? 0.f : 1.f;
else if (param_data[index].flags & DATA_PARAM_TOGGLED)
value = value > 0.f ? 1.f : 0.f;
else if (param_data[index].flags & DATA_PARAM_INTEGER)
value = (int32_t)(value + (value >= 0.f ? 0.5f : -0.5f));
return clampf(value, param_data[index].min, param_data[index].max);
}
typedef struct {
plugin p;
#if DATA_PRODUCT_AUDIO_INPUT_CHANNELS_N > 0
@ -188,10 +205,6 @@ static void activate(LV2_Handle instance) {
plugin_reset(&i->p);
}
static inline float clampf(float x, float m, float M) {
return x < m ? m : (x > M ? M : x);
}
static void run(LV2_Handle instance, uint32_t sample_count) {
plugin_instance * i = (plugin_instance *)instance;
@ -211,17 +224,7 @@ static void run(LV2_Handle instance, uint32_t sample_count) {
for (uint32_t j = 0; j < DATA_PRODUCT_CONTROL_INPUTS_N; j++) {
if (i->c[j] == NULL)
continue;
float v;
if (param_data[j].flags & DATA_PARAM_BYPASS)
v = *i->c[j] > 0.f ? 0.f : 1.f;
else if (param_data[j].flags & DATA_PARAM_TOGGLED)
v = *i->c[j] > 0.f ? 1.f : 0.f;
else if (param_data[j].flags & DATA_PARAM_INTEGER)
v = (int32_t)(*i->c[j] + (*i->c[j] >= 0.f ? 0.5f : -0.5f));
else
v = *i->c[j];
v = clampf(v, param_data[j].min, param_data[j].max);
float v = straighten_param(j, *i->c[j]);
if (v != i->params[j]) {
i->params[j] = v;
plugin_set_parameter(&i->p, param_data[j].index, v);
@ -304,20 +307,31 @@ typedef struct {
LV2UI_Controller controller;
} ui_instance;
#define CONTROL_INPUT_INDEX_OFFSET ( \
DATA_PRODUCT_AUDIO_INPUT_CHANNELS_N \
+ DATA_PRODUCT_AUDIO_OUTPUT_CHANNELS_N \
+ DATA_PRODUCT_MIDI_INPUTS_N \
+ DATA_PRODUCT_MIDI_OUTPUTS_N )
#define CONTROL_OUTPUT_INDEX_OFFSET (CONTROL_INPUT_INDEX_OFFSET + DATA_PRODUCT_CONTROL_INPUTS_N)
static void ui_set_parameter_cb(void *handle, size_t index, float value) {
ui_instance *instance = (ui_instance *)handle;
instance->write(instance->controller, index_to_param[index], sizeof(float), 0, &value);
index = index_to_param[index];
value = straighten_param(index - CONTROL_INPUT_INDEX_OFFSET, value);
instance->write(instance->controller, index, sizeof(float), 0, &value);
}
static LV2UI_Handle ui_instantiate(const LV2UI_Descriptor * descriptor, const char * plugin_uri, const char * bundle_path, LV2UI_Write_Function write_function, LV2UI_Controller controller, LV2UI_Widget * widget, const LV2_Feature * const * features) {
(void)descriptor;
(void)plugin_uri;
(void)bundle_path;
char has_parent = 0;
void *parent = NULL;
for (size_t i = 0; features[i] != NULL; i++)
if (!strcmp(features[i]->URI, LV2_UI__parent)) {
has_parent = 1;
parent = features[i]->data;
} else if (!strcmp(features[i]->URI, LV2_UI__resize)) {
// TODO...
}
ui_instance *instance = malloc(sizeof(ui_instance));
@ -349,18 +363,15 @@ static void ui_cleanup(LV2UI_Handle handle) {
free(instance);
}
#define CONTROL_INPUT_INDEX_OFFSET ( \
DATA_PRODUCT_AUDIO_INPUT_CHANNELS_N \
+ DATA_PRODUCT_AUDIO_OUTPUT_CHANNELS_N \
+ DATA_PRODUCT_MIDI_INPUTS_N \
+ DATA_PRODUCT_MIDI_OUTPUTS_N )
#define CONTROL_OUTPUT_INDEX_OFFSET (CONTROL_INPUT_INDEX_OFFSET + DATA_PRODUCT_CONTROL_INPUTS_N)
static void ui_port_event(LV2UI_Handle handle, uint32_t port_index, uint32_t buffer_size, uint32_t format, const void * buffer) {
(void)buffer_size;
(void)format;
ui_instance *instance = (ui_instance *)handle;
if (port_index < CONTROL_OUTPUT_INDEX_OFFSET)
plugin_ui_set_parameter(instance->ui, param_data[port_index - CONTROL_INPUT_INDEX_OFFSET].index, *((float *)buffer));
else
if (port_index < CONTROL_OUTPUT_INDEX_OFFSET) {
size_t index = port_index - CONTROL_INPUT_INDEX_OFFSET;
plugin_ui_set_parameter(instance->ui, param_data[index].index, straighten_param(index, *((float *)buffer)));
} else
plugin_ui_set_parameter(instance->ui, param_out_index[port_index - CONTROL_OUTPUT_INDEX_OFFSET], *((float *)buffer));
}
@ -370,23 +381,10 @@ static int ui_idle(LV2UI_Handle handle) {
return 0;
}
static int ui_resize(LV2UI_Feature_Handle handle, int width, int height) {
#if DATA_UI_USER_RESIZABLE
//TODO
//return plugin_ui_resize((plugin_ui *)handle, width, height);
return 0;
#else
return -1;
#endif
}
static const void * ui_extension_data(const char * uri) {
static const LV2UI_Idle_Interface idle = { ui_idle };
static const LV2UI_Resize resize = { NULL, ui_resize };
if (!strcmp(uri, LV2_UI__idleInterface))
return &idle;
else if (!strcmp(uri, LV2_UI__resize))
return &resize;
return NULL;
}

9
test/plugin.h
View File

@ -247,7 +247,6 @@ static PuglStatus plugin_ui_on_event(PuglView *view, const PuglEvent *event) {
case PUGL_BUTTON_RELEASE:
{
plugin_ui *instance = (plugin_ui *)puglGetHandle(view);
PuglRect frame = puglGetFrame(view);
const PuglButtonEvent *ev = (const PuglButtonEvent *)event;
double x = instance->x;
double y = instance->y;
@ -269,12 +268,18 @@ static PuglStatus plugin_ui_on_event(PuglView *view, const PuglEvent *event) {
instance->cutoff = (float)((ev->x - (x + 0.1 * w)) / (0.8 * w));
instance->cbs.set_parameter(instance->cbs.handle, 2, (632.4555320336746f * instance->cutoff + 20.653108640674372f) / (1.0326554320337158f - instance->cutoff));
puglPostRedisplay(instance->view);
}
} else if (ev->x >= x + 0.4 * w && ev->x <= x + 0.6 * w
&& ev->y >= y + 0.6 * h && ev->y <= y + 0.7 * h) {
instance->bypass = !instance->bypass;
instance->cbs.set_parameter(instance->cbs.handle, 3, instance->bypass ? 1.f : 0.f);
puglPostRedisplay(instance->view);
}
}
break;
case PUGL_EXPOSE:
{
plugin_ui *instance = (plugin_ui *)puglGetHandle(view);
plugin_ui_update_geometry(instance); // I didn't expect this was needed here for X11 to work decently when resizing
plugin_ui_draw(instance);
}
break;