beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-09-29 16:21:29 +00:00
Code Issues Actions 5 Packages Projects Releases Wiki Activity

GLTeapot: Add the ability to open 3D files

Browse source 
This change makes it possible for the GLTeapot demo to open any OBJ
file.
This commit is contained in:
Erik Biederstadt 2021-05-17 14:20:01 -06:00 committed by Linus Groh
parent 076cd58817
commit 01a5ffdae0
Notes: sideshowbarker 2024-07-18 17:47:07 +09:00 
Author: https://github.com/ebiederstadt
Commit: https://github.com/SerenityOS/serenity/commit/01a5ffdae0e
Pull-request: https://github.com/SerenityOS/serenity/pull/7229
Reviewed-by: https://github.com/linusg
1 changed files with 59 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

65
Userland/Demos/GLTeapot/main.cpp
View file

@ -5,10 +5,15 @@
*/
#include <LibCore/ElapsedTimer.h>
#include <LibCore/File.h>
#include <LibGL/GL/gl.h>
#include <LibGL/GLContext.h>
#include <LibGUI/Application.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Widget.h>
#include <LibGUI/Window.h>
@ -25,8 +30,11 @@ static constexpr u16 RENDER_HEIGHT = 480;
class GLContextWidget final : public GUI::Widget {
C_OBJECT(GLContextWidget)
public:
bool load(const String& fname);
private:
GLContextWidget()
: m_mesh_loader(adopt_own(*new WavefrontOBJLoader()))
{
m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { RENDER_WIDTH, RENDER_HEIGHT });
m_context = GL::create_context(*m_bitmap);
@ -53,19 +61,19 @@ private:
glEndList();
// Load the teapot
auto mesh_loader = adopt_own(*new WavefrontOBJLoader());
m_teapot = mesh_loader->load("/res/gl/teapot.obj");
m_mesh = m_mesh_loader->load("/res/gl/teapot.obj");
dbgln("GLTeapot: teapot mesh has {} triangles.", m_teapot->triangle_count());
dbgln("GLTeapot: teapot mesh has {} triangles.", m_mesh->triangle_count());
}
virtual void paint_event(GUI::PaintEvent&) override;
virtual void timer_event(Core::TimerEvent&) override;
private:
RefPtr<Mesh> m_teapot;
RefPtr<Mesh> m_mesh;
RefPtr<Gfx::Bitmap> m_bitmap;
OwnPtr<GL::GLContext> m_context;
NonnullOwnPtr<WavefrontOBJLoader> m_mesh_loader;
GLuint m_init_list { 0 };
};
@ -94,12 +102,18 @@ void GLContextWidget::timer_event(Core::TimerEvent&)
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf((float*)matrix.elements());
m_teapot->draw();
m_mesh->draw();
m_context->present();
update();
}
bool GLContextWidget::load(const String& fname)
{
m_mesh = m_mesh_loader->load(fname);
return !m_mesh.is_null();
}
int main(int argc, char** argv)
{
auto app = GUI::Application::construct(argc, argv);
@ -114,6 +128,11 @@ int main(int argc, char** argv)
return 1;
}
if (unveil("/home", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
@ -128,8 +147,42 @@ int main(int argc, char** argv)
window->resize(640, 480);
window->set_resizable(false);
window->set_double_buffering_enabled(true);
window->set_main_widget<GLContextWidget>();
auto& widget = window->set_main_widget<GLContextWidget>();
auto menubar = GUI::Menubar::construct();
auto& file_menu = menubar->add_menu("&File");
file_menu.add_action(GUI::CommonActions::make_open_action([&](auto&) {
Optional<String> open_path = GUI::FilePicker::get_open_filepath(window);
if (!open_path.has_value())
return;
auto file = Core::File::construct(open_path.value());
if (!file->open(Core::OpenMode::ReadOnly) && file->error() != ENOENT) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: {}", open_path.value(), strerror(errno)), "Error", GUI::MessageBox::Type::Error);
return;
}
if (file->is_device()) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: Can't open device files", open_path.value()), "Error", GUI::MessageBox::Type::Error);
return;
}
if (file->is_directory()) {
GUI::MessageBox::show(window, String::formatted("Opening \"{}\" failed: Can't open directories", open_path.value()), "Error", GUI::MessageBox::Type::Error);
return;
}
if (!widget.load(file->filename()))
GUI::MessageBox::show(window, String::formatted("Reading \"{}\" failed.", open_path.value()), "Error", GUI::MessageBox::Type::Error);
}));
file_menu.add_action(GUI::CommonActions::make_quit_action([&](auto&) {
app->quit();
}));
window->set_menubar(move(menubar));
window->show();
return app->exec();