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more lv2 gui

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This commit is contained in:
Stefano D'Angelo 2024-05-08 16:19:10 +02:00
parent b529435748
commit 292e83dcea
2 changed files with 41 additions and 4 deletions
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43
templates/lv2/src/lv2.c
View File

@ -293,22 +293,57 @@ LV2_SYMBOL_EXPORT const LV2_Descriptor * lv2_descriptor(uint32_t index) {
}
#ifdef PLUGIN_UI
#include <X11/Xlib.h>
typedef struct {
Display * display;
Window window;
} ui_instance;
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) {
//TODO
*widget = NULL;
return NULL;
ui_instance *instance = malloc(sizeof(ui_instance));
if (instance == NULL)
return NULL;
instance->display = XOpenDisplay(NULL);
if (instance->display == NULL) {
free(instance);
return NULL;
}
Window parent;
const char* missing = lv2_features_query(features,
LV2_UI__parent, &parent, false,
NULL);
int screen = DefaultScreen(instance->display);
instance->window = XCreateSimpleWindow(instance->display, missing ? RootWindow(instance->display, screen) : parent, 0, 0, 400, 200, 5, BlackPixel(instance->display, screen), WhitePixel(instance->display, screen));
//XSelectInput(instance->display, instance->window, ExposureMask | KeyPressMask);
XMapWindow(instance->display, instance->window);
XEvent ev;
while (XPending(instance->display))
XNextEvent(instance->display, &ev);
*widget = instance->window;
return instance;
}
static void ui_cleanup(LV2UI_Handle handle) {
//TODO
ui_instance *instance = (ui_instance *)handle;
XDestroyWindow(instance->display, instance->window);
XCloseDisplay(instance->display);
free(instance);
}
static void ui_port_event(LV2UI_Handle handle, uint32_t port_index, uint32_t buffer_size, uint32_t format, const void * buffer) {
//TODO
}
static const void * extension_data(const char * uri) {
static const void * ui_extension_data(const char * uri) {
//TODO
return NULL;
}
static const LV2UI_Descriptor ui_descriptor = {

2
test/plugin.h
View File

@ -115,3 +115,5 @@ static void plugin_midi_msg_in(plugin *instance, size_t index, const uint8_t * d
//approx instance->cutoff_k = powf(2.f, (1.f / 12.f) * (note - 60));
instance->cutoff_k = data[1] < 64 ? (-0.19558034980097166f * data[1] - 2.361735109225749f) / (data[1] - 75.57552349522389f) : (393.95397927344214f - 7.660826245588588f * data[1]) / (data[1] - 139.0755234952239f);
}
#define PLUGIN_UI