68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/*
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* libhello.cpp
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* Sample shared GUI library for MontaukOS
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* Creates a window and renders text as a demo of the shared library + GUI system
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* Copyright (c) 2026 Daniel Hammer
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*/
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#include <montauk/syscall.h>
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// Exported demo function - creates a window and renders until closed
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extern "C" int hello_run() {
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// Create window
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Montauk::WinCreateResult wres;
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if (montauk::win_create("libhello Demo", 320, 200, &wres) < 0 || wres.id < 0) {
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return -1;
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}
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int winId = wres.id;
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uint32_t* pixels = (uint32_t*)(uintptr_t)wres.pixelVa;
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int width = 200;
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int height = 320;
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// Simple render - fill with a color pattern
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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// Dark blue background
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pixels[y * width + x] = 0xFF1a1a2e;
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}
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}
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// Present the initial frame
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montauk::win_present(winId);
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// Event loop
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while (true) {
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Montauk::WinEvent ev;
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int r = montauk::win_poll(winId, &ev);
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if (r < 0) {
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break;
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}
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if (r == 0) {
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montauk::sleep_ms(16);
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continue;
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}
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if (ev.type == 3) { // close
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break;
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}
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if (ev.type == 2) { // resize
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width = ev.resize.w;
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height = ev.resize.h;
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pixels = (uint32_t*)(uintptr_t)montauk::win_resize(winId, width, height);
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// Re-render on resize
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for (int y = 0; y < height; y++) {
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for (int x = 0; x < width; x++) {
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pixels[y * width + x] = 0xFF1a1a2e;
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}
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}
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montauk::win_present(winId);
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}
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}
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montauk::win_destroy(winId);
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return 0;
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}
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