ugui/src/main.c3

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import std::io;
import vtree;
import cache;
import ugui;
import std::time;
import std::collections::ringbuffer;
import std::core::string;
import std::ascii;
import sdlrenderer::ren;
import sdl3::sdl;
alias Times = ringbuffer::RingBuffer{time::NanoDuration[128]};
fn void Times.print_stats(&times)
{
time::NanoDuration min, max, avg, x;
min = times.get(0);
for (usz i = 0; i < times.written; i++) {
x = times.get(i);
if (x < min) { min = x; }
if (x > max) { max = x; }
avg += x;
}
avg = (NanoDuration)((ulong)avg/128.0);
io::printfn("min=%s, max=%s, avg=%s", min, max, avg);
}
struct TimeStats {
time::NanoDuration min, max, avg;
}
fn TimeStats Times.get_stats(&times)
{
time::NanoDuration min, max, avg, x;
min = times.get(0);
for (usz i = 0; i < times.written; i++) {
x = times.get(i);
if (x < min) { min = x; }
if (x > max) { max = x; }
avg += x;
}
avg = (NanoDuration)((ulong)avg/128.0);
return {.min = min, .max = max, .avg = avg};
}
const char[*] MSDF_FS_PATH = "resources/shaders/compiled/msdf.frag.spv";
const char[*] SPRITE_FS_PATH = "resources/shaders/compiled/sprite.frag.spv";
const char[*] FONT_FS_PATH = "resources/shaders/compiled/font.frag.spv";
const char[*] RECT_FS_PATH = "resources/shaders/compiled/rect.frag.spv";
const char[*] SPRITE_VS_PATH = "resources/shaders/compiled/sprite.vert.spv";
const char[*] RECT_VS_PATH = "resources/shaders/compiled/rect.vert.spv";
fn int main(String[] args)
{
ugui::Ctx ui;
ui.init()!!;
defer ui.free();
ren::Renderer ren;
ren.init("Ugui Test", 800, 600, true);
defer ren.free();
ui.input_window_size(800, 600)!!;
//
// FONT LOADING
//
{
// import font in the ui context
ui.load_font("font1", "resources/hack-nerd.ttf", 16)!!;
// create the rendering pipeline
ren.font_atlas_id = ui.get_font_id("font1");
ren.load_spirv_shader_from_file("UGUI_PIPELINE_FONT", SPRITE_VS_PATH, FONT_FS_PATH, 1, 0);
ren.create_pipeline("UGUI_PIPELINE_FONT", SPRITE);
// send the atlas to the gpu
Atlas* font_atlas = ui.get_font_atlas("font1")!!;
ren.new_texture("font1", JUST_ALPHA, font_atlas.buffer, font_atlas.width, font_atlas.height);
}
//
// ICON LOADING
//
{
// create the atlas and upload some icons
ui.sprite_atlas_create("icons", AtlasType.ATLAS_R8G8B8A8, 512, 512)!!;
ui.import_sprite_file_qoi("tux", "resources/tux.qoi")!!;
ui.import_sprite_file_qoi("tick", "resources/tick_sdf.qoi", SpriteType.SPRITE_MSDF)!!;
// create the rendering pipelines
ren.sprite_atlas_id = ui.get_sprite_atlas_id("icons");
// normal sprite pipeline
ren.load_spirv_shader_from_file("UGUI_PIPELINE_SPRITE", SPRITE_VS_PATH, SPRITE_FS_PATH, 1, 0);
ren.create_pipeline("UGUI_PIPELINE_SPRITE", SPRITE);
// msdf sprite pipeline
ren.load_spirv_shader_from_file("UGUI_PIPELINE_SPRITE_MSDF", SPRITE_VS_PATH, MSDF_FS_PATH, 1, 0);
ren.create_pipeline("UGUI_PIPELINE_SPRITE_MSDF", SPRITE);
// upload the atlas to the gpu
Atlas atlas = ui.sprite_atlas.atlas;
ren.new_texture("icons", FULL_COLOR, atlas.buffer, atlas.width, atlas.height);
}
//
// RECT PIPELINE
//
ren.load_spirv_shader_from_file("UGUI_PIPELINE_RECT", RECT_VS_PATH, RECT_FS_PATH, 0, 0);
ren.create_pipeline("UGUI_PIPELINE_RECT", RECT);
isz frame;
double fps;
bool toggle = true;
time::Clock clock;
time::Clock fps_clock;
time::Clock sleep_clock;
Times ui_times;
Times draw_times;
//
// MAIN LOOP
//
sdl::start_text_input(ren.win);
sdl::Event e;
bool quit = false;
ugui::ModKeys mod;
ugui::MouseButtons btn;
while (!quit) {
clock.mark();
fps_clock.mark();
sleep_clock.mark();
do {
switch (e.type) {
case EVENT_QUIT:
quit = true;
case EVENT_KEY_UP: nextcase;
case EVENT_KEY_DOWN:
mod.rctrl = e.key.key == K_RCTRL ? !!(e.type == EVENT_KEY_DOWN) : mod.rctrl;
mod.lctrl = e.key.key == K_LCTRL ? !!(e.type == EVENT_KEY_DOWN) : mod.lctrl;
mod.bkspc = e.key.key == K_BACKSPACE ? !!(e.type == EVENT_KEY_DOWN) : mod.bkspc;
// pressing ctrl+key or alt+key does not generate a character as such no
// TEXT_INPUT event is generated. When those keys are pressed we have to
// do manual text input, bummer
if (e.type == EVENT_KEY_DOWN && (mod.lctrl || mod.rctrl)) {
if (ascii::is_alnum_m((uint)e.key.key)) {
ui.input_char((char)e.key.key);
}
}
if (e.type == EVENT_KEY_DOWN && e.key.key == K_RETURN) ui.input_char('\n');
case EVENT_TEXT_INPUT:
ui.input_text_utf8(e.text.text.str_view());
case EVENT_WINDOW_RESIZED:
ui.input_window_size((short)e.window.data1, (short)e.window.data2)!!;
case EVENT_WINDOW_FOCUS_GAINED:
ui.input_changefocus(true);
case EVENT_WINDOW_FOCUS_LOST:
ui.input_changefocus(false);
case EVENT_MOUSE_MOTION:
ui.input_mouse_abs((short)e.motion.x, (short)e.motion.y);
case EVENT_MOUSE_WHEEL:
ui.input_mouse_wheel((short)e.wheel.integer_x, (short)e.wheel.integer_y);
case EVENT_MOUSE_BUTTON_DOWN: nextcase;
case EVENT_MOUSE_BUTTON_UP:
sdl::MouseButtonFlags mb = sdl::get_mouse_state(null, null);
btn = {
.btn_left = !!(mb & BUTTON_LMASK),
.btn_right = !!(mb & BUTTON_RMASK),
.btn_middle = !!(mb & BUTTON_MMASK),
.btn_4 = !!(mb & BUTTON_X1MASK),
.btn_5 = !!(mb & BUTTON_X2MASK),
};
case EVENT_POLL_SENTINEL: break;
default:
io::eprintfn("unhandled event: %s", e.type);
}
} while(sdl::poll_event(&e));
ui.input_mod_keys(mod);
ui.input_mouse_button(btn);
/* End Input Handling */
/* Start UI Handling */
ui.frame_begin()!!;
if (ui.check_key_combo(ugui::KMOD_CTRL, "q")) quit = true;
ui.div_begin({.w=-100})!!;
{
ui.layout_set_column()!!;
if (ui.button({0,0,30,30}, toggle)!!.mouse_press) {
io::printn("press button0");
toggle = !toggle;
}
//ui.layout_next_column()!!;
if (ui.button({0,0,30,30})!!.mouse_press) {
io::printn("press button1");
}
//ui.layout_next_column()!!;
if (ui.button({0,0,30,30})!!.mouse_release) {
io::printn("release button2");
}
ui.layout_set_row()!!;
ui.layout_next_row()!!;
static float rf, gf, bf, af;
ui.slider_ver({0,0,30,100}, &rf)!!;
ui.slider_ver({0,0,30,100}, &gf)!!;
ui.slider_ver({0,0,30,100}, &bf)!!;
ui.slider_ver({0,0,30,100}, &af)!!;
ui.layout_next_column()!!;
ui.text_unbounded("Ciao Mamma\nAbilità ⚡\n'\udb80\udd2c'")!!;
ui.layout_next_column()!!;
ui.button_label("Continua!")!!;
ui.layout_next_row()!!;
static bool check;
ui.checkbox("", {}, &check, "tick")!!;
ui.toggle("", {}, &toggle)!!;
};
ui.draw_sprite("tux")!!;
static char[128] text_box = "ciao mamma";
static usz text_len = "ciao mamma".len;
ui.text_box({0,0,200,200}, text_box[..], &text_len)!!;
ui.div_end()!!;
ui.div_begin(ugui::DIV_FILL, scroll_x: true, scroll_y: true)!!;
{
ui.layout_set_column()!!;
static float slider2 = 0.5;
if (ui.slider_ver({0,0,30,100}, &slider2)!!.update) {
io::printfn("other slider: %f", slider2);
}
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
if (toggle) {
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
ui.button({0,0,50,50})!!;
}
ui.layout_next_column()!!;
ui.layout_set_row()!!;
static float f1, f2;
ui.slider_hor({0,0,100,30}, &f1)!!;
ui.slider_hor({0,0,100,30}, &f2)!!;
};
ui.div_end()!!;
// Timings counter
TimeStats dts = draw_times.get_stats();
TimeStats uts = ui_times.get_stats();
ui.layout_set_floating()!!;
ui.div_begin({0, ui.height-150, -300, 150})!!;
{
ui.layout_set_column()!!;
ui.text_unbounded(string::tformat("frame %d, fps = %.2f", frame, fps))!!;
ui.text_unbounded(string::tformat("ui avg: %s\ndraw avg: %s\nTOT: %s", uts.avg, dts.avg, uts.avg+dts.avg))!!;
ui.text_unbounded(string::tformat("%s %s", mod.lctrl, (String)ui.input.keyboard.text[..]))!!;
};
ui.div_end()!!;
ui.frame_end()!!;
/* End UI Handling */
ui_times.push(clock.mark());
//ui_times.print_stats();
/* Start UI Drawing */
ren.begin_render(true);
ren.render_ugui(&ui.cmd_queue);
ren.end_render();
draw_times.push(clock.mark());
//draw_times.print_stats();
/* End Drawing */
// wait for the next event, timeout after 100ms
sdl::wait_event_timeout(&e, (int)(100.0-sleep_clock.mark().to_ms()-0.5));
fps = 1.0 / fps_clock.mark().to_sec();
frame++;
}
return 0;
}