mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 05:17:34 +00:00
Demos: Move to Userland/Demos/
This commit is contained in:
Andreas Kling
parent
ececac65c2
commit
7fc079bd86
23 changed files with 1 additions and 1 deletions
230
Userland/Demos/Cube/Cube.cpp
Normal file
230
Userland/Demos/Cube/Cube.cpp
Normal file
|
|
@ -0,0 +1,230 @@
|
|||
/*
|
||||
* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@gmx.de>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||
* this list of conditions and the following disclaimer in the documentation
|
||||
* and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <LibCore/ElapsedTimer.h>
|
||||
#include <LibGUI/Application.h>
|
||||
#include <LibGUI/Icon.h>
|
||||
#include <LibGUI/Label.h>
|
||||
#include <LibGUI/Painter.h>
|
||||
#include <LibGUI/Widget.h>
|
||||
#include <LibGUI/Window.h>
|
||||
#include <LibGfx/Bitmap.h>
|
||||
#include <LibGfx/Matrix4x4.h>
|
||||
#include <LibGfx/Vector3.h>
|
||||
#include <math.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
|
||||
const int WIDTH = 200;
|
||||
const int HEIGHT = 200;
|
||||
|
||||
class Cube final : public GUI::Widget {
|
||||
C_OBJECT(Cube)
|
||||
public:
|
||||
virtual ~Cube() override;
|
||||
void set_stat_label(RefPtr<GUI::Label> l) { m_stats = l; };
|
||||
|
||||
private:
|
||||
Cube();
|
||||
RefPtr<Gfx::Bitmap> m_bitmap;
|
||||
RefPtr<GUI::Label> m_stats;
|
||||
|
||||
virtual void paint_event(GUI::PaintEvent&) override;
|
||||
virtual void timer_event(Core::TimerEvent&) override;
|
||||
|
||||
int m_accumulated_time;
|
||||
int m_cycles;
|
||||
int m_phase;
|
||||
};
|
||||
|
||||
Cube::Cube()
|
||||
{
|
||||
m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { WIDTH, HEIGHT });
|
||||
|
||||
m_accumulated_time = 0;
|
||||
m_cycles = 0;
|
||||
m_phase = 0;
|
||||
|
||||
stop_timer();
|
||||
start_timer(20);
|
||||
}
|
||||
|
||||
Cube::~Cube()
|
||||
{
|
||||
}
|
||||
|
||||
void Cube::paint_event(GUI::PaintEvent& event)
|
||||
{
|
||||
GUI::Painter painter(*this);
|
||||
painter.add_clip_rect(event.rect());
|
||||
|
||||
/* Blit it! */
|
||||
painter.draw_scaled_bitmap(event.rect(), *m_bitmap, m_bitmap->rect());
|
||||
}
|
||||
|
||||
void Cube::timer_event(Core::TimerEvent&)
|
||||
{
|
||||
Core::ElapsedTimer timer;
|
||||
timer.start();
|
||||
|
||||
const FloatVector3 vertices[8] {
|
||||
{ -1, -1, -1 },
|
||||
{ -1, 1, -1 },
|
||||
{ 1, 1, -1 },
|
||||
{ 1, -1, -1 },
|
||||
{ -1, -1, 1 },
|
||||
{ -1, 1, 1 },
|
||||
{ 1, 1, 1 },
|
||||
{ 1, -1, 1 },
|
||||
};
|
||||
|
||||
#define QUAD(a, b, c, d) a, b, c, c, d, a
|
||||
|
||||
const int indices[] {
|
||||
QUAD(0, 1, 2, 3),
|
||||
QUAD(7, 6, 5, 4),
|
||||
QUAD(4, 5, 1, 0),
|
||||
QUAD(3, 2, 6, 7),
|
||||
QUAD(1, 5, 6, 2),
|
||||
QUAD(0, 3, 7, 4),
|
||||
};
|
||||
|
||||
const Color colors[] {
|
||||
Color::Red,
|
||||
Color::Red,
|
||||
Color::Green,
|
||||
Color::Green,
|
||||
Color::Blue,
|
||||
Color::Blue,
|
||||
Color::Magenta,
|
||||
Color::Magenta,
|
||||
Color::White,
|
||||
Color::White,
|
||||
Color::Yellow,
|
||||
Color::Yellow,
|
||||
};
|
||||
|
||||
FloatVector3 transformed_vertices[8];
|
||||
|
||||
static float angle = 0;
|
||||
angle += 0.02f;
|
||||
|
||||
auto matrix = FloatMatrix4x4::translate(FloatVector3(0, 0, 1.5f))
|
||||
* FloatMatrix4x4::rotate(FloatVector3(1, 0, 0), angle * 1.17356641f)
|
||||
* FloatMatrix4x4::rotate(FloatVector3(0, 1, 0), angle * 0.90533273f)
|
||||
* FloatMatrix4x4::rotate(FloatVector3(0, 0, 1), angle);
|
||||
|
||||
for (int i = 0; i < 8; i++) {
|
||||
transformed_vertices[i] = matrix.transform_point(vertices[i]);
|
||||
}
|
||||
|
||||
GUI::Painter painter(*m_bitmap);
|
||||
painter.fill_rect_with_gradient(Gfx::Orientation::Vertical, m_bitmap->rect(), Gfx::Color::White, Gfx::Color::Blue);
|
||||
|
||||
auto to_point = [](const FloatVector3& v) {
|
||||
return Gfx::IntPoint(v.x(), v.y());
|
||||
};
|
||||
|
||||
for (size_t i = 0; i < sizeof(indices) / sizeof(indices[0]) / 3; i++) {
|
||||
auto a = transformed_vertices[indices[i * 3]];
|
||||
auto b = transformed_vertices[indices[i * 3 + 1]];
|
||||
auto c = transformed_vertices[indices[i * 3 + 2]];
|
||||
auto normal = (b - a).cross(c - a);
|
||||
normal.normalize();
|
||||
|
||||
// Perspective projection
|
||||
a.set_x(WIDTH / 2 + a.x() / (1 + a.z() * 0.35) * WIDTH / 3);
|
||||
a.set_y(HEIGHT / 2 - a.y() / (1 + a.z() * 0.35) * WIDTH / 3);
|
||||
b.set_x(WIDTH / 2 + b.x() / (1 + b.z() * 0.35) * WIDTH / 3);
|
||||
b.set_y(HEIGHT / 2 - b.y() / (1 + b.z() * 0.35) * WIDTH / 3);
|
||||
c.set_x(WIDTH / 2 + c.x() / (1 + c.z() * 0.35) * WIDTH / 3);
|
||||
c.set_y(HEIGHT / 2 - c.y() / (1 + c.z() * 0.35) * WIDTH / 3);
|
||||
|
||||
float winding = (b.x() - a.x()) * (c.y() - a.y()) - (b.y() - a.y()) * (c.x() - a.x());
|
||||
if (winding < 0)
|
||||
continue;
|
||||
|
||||
float shade = 0.5f + normal.y() * 0.5f;
|
||||
auto color = colors[i];
|
||||
color.set_red(color.red() * shade);
|
||||
color.set_green(color.green() * shade);
|
||||
color.set_blue(color.blue() * shade);
|
||||
|
||||
painter.draw_triangle(to_point(a), to_point(b), to_point(c), color);
|
||||
}
|
||||
|
||||
if ((m_cycles % 50) == 0) {
|
||||
dbgln("{} total cycles. finished 50 in {} ms, avg {} ms", m_cycles, m_accumulated_time, m_accumulated_time / 50);
|
||||
m_stats->set_text(String::formatted("{} ms", m_accumulated_time / 50));
|
||||
m_accumulated_time = 0;
|
||||
}
|
||||
|
||||
update();
|
||||
|
||||
m_accumulated_time += timer.elapsed();
|
||||
m_cycles++;
|
||||
}
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
auto app = GUI::Application::construct(argc, argv);
|
||||
|
||||
if (pledge("stdio rpath shared_buffer", nullptr) < 0) {
|
||||
perror("pledge");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (unveil("/res", "r") < 0) {
|
||||
perror("unveil");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (unveil(nullptr, nullptr) < 0) {
|
||||
perror("unveil");
|
||||
return 1;
|
||||
}
|
||||
|
||||
auto window = GUI::Window::construct();
|
||||
window->set_double_buffering_enabled(true);
|
||||
window->set_title("Cube");
|
||||
window->set_resizable(false);
|
||||
window->resize(WIDTH, HEIGHT);
|
||||
|
||||
auto& cube = window->set_main_widget<Cube>();
|
||||
|
||||
auto& time = cube.add<GUI::Label>();
|
||||
time.set_relative_rect({ 0, 4, 40, 10 });
|
||||
time.move_by({ window->width() - time.width(), 0 });
|
||||
cube.set_stat_label(time);
|
||||
|
||||
window->show();
|
||||
|
||||
auto app_icon = GUI::Icon::default_icon("app-cube");
|
||||
window->set_icon(app_icon.bitmap_for_size(16));
|
||||
|
||||
return app->exec();
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue