Struct glium_graphics::Glium2d

source · 
pub struct Glium2d { /* private fields */ }
Expand description

The resources needed for rendering 2D.

Implementations§

source§

impl Glium2d

source

pub fn new<W>(opengl: OpenGL, window: &W) -> Glium2dwhere W: Facade,

Creates a new Glium2d.

Examples found in repository?
examples/text_test.rs (line 27)
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fn main() {
    let opengl = OpenGL::V3_2;
    let size = [500, 300];
    let ref mut window: GliumWindow = WindowSettings::new("gfx_graphics: text_test", size)
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let mut glyph_cache = GlyphCache::new(
        Path::new("assets/FiraSans-Regular.ttf"),
        window.clone(),
        TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                use graphics::*;

                clear([1.0; 4], g);
                text::Text::new_color([0.0, 0.5, 0.0, 1.0], 32)
                    .draw(
                        "Hello glium_graphics!",
                        &mut glyph_cache,
                        &DrawState::default(),
                        c.transform.trans(10.0, 100.0),
                        g,
                    )
                    .unwrap();
            });
            target.finish().unwrap();
        }
    }
}
More examples
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examples/image_test.rs (line 29)
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fn main() {
    let opengl = OpenGL::V3_2;
    let (w, h) = (300, 300);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let rust_logo = Texture::from_path(
        window,
        "assets/rust.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        use graphics::*;

        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                clear(color::WHITE, g);
                rectangle(
                    [1.0, 0.0, 0.0, 1.0],
                    [0.0, 0.0, 100.0, 100.0],
                    c.transform,
                    g,
                );
                rectangle(
                    [0.0, 1.0, 0.0, 0.3],
                    [50.0, 50.0, 100.0, 100.0],
                    c.transform,
                    g,
                );
                image(&rust_logo, c.transform.trans(100.0, 100.0), g);
            });
            target.finish().unwrap();
        }
    }
}
examples/colored_image_test.rs (line 29)
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fn main() {
    let opengl = OpenGL::V3_2;
    let (w, h) = (300, 300);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: colored_image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let rust_logo = Texture::from_path(
        window,
        "assets/rust-white.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        use graphics::*;

        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                use graphics::triangulation::{tx, ty};

                let transform = c.transform.trans(0.0, 0.0);

                let tr = |p: [f64; 2]| [tx(transform, p[0], p[1]), ty(transform, p[0], p[1])];

                clear(color::WHITE, g);
                Rectangle::new([1.0, 0.0, 0.0, 1.0])
                    .draw([0.0, 0.0, 100.0, 100.0], &c.draw_state, c.transform, g);
                Rectangle::new([0.0, 1.0, 0.0, 0.3])
                    .draw([50.0, 50.0, 100.0, 100.0], &c.draw_state, c.transform, g);
                g.tri_list_uv_c(&c.draw_state, &rust_logo, |f| {
                    (f)(
                        &[
                            tr([0.0, 0.0]),
                            tr([300.0, 0.0]),
                            tr([0.0, 300.0]),

                            tr([300.0, 0.0]),
                            tr([0.0, 300.0]),
                            tr([300.0, 300.0]),
                        ],
                        &[
                            [0.0, 0.0],
                            [1.0, 0.0],
                            [0.0, 1.0],

                            [1.0, 0.0],
                            [0.0, 1.0],
                            [1.0, 1.0],
                        ],
                        &[
                            [1.0, 0.0, 0.0, 1.0],
                            [0.0, 1.0, 0.0, 1.0],
                            [0.0, 0.0, 1.0, 1.0],

                            [0.0, 00.0, 0.0, 1.0],
                            [0.0, 00.0, 0.0, 1.0],
                            [0.0, 00.0, 0.0, 1.0],
                        ]
                    )
                });
            });
            target.finish().unwrap();
        }
    }
}
examples/texture_wrap.rs (line 45)
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fn main() {
    println!("Press U to change the texture wrap mode for the u coordinate");
    println!("Press V to change the texture wrap mode for the v coordinate");

    let opengl = OpenGL::V3_2;
    let (w, h) = (600, 600);
    let mut window: GliumWindow = WindowSettings::new("glium_graphics: texture_wrap", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();
    window.set_lazy(true);

    // Set up wrap modes
    let wrap_modes = [
        Wrap::ClampToEdge,
        Wrap::ClampToBorder,
        Wrap::Repeat,
        Wrap::MirroredRepeat,
    ];
    let mut ix_u = 0;
    let mut ix_v = 0;
    let mut texture_settings = TextureSettings::new();
    texture_settings.set_border_color([0.0, 0.0, 0.0, 1.0]);

    let mut rust_logo = Texture::from_path(
        &mut window,
        "assets/rust.png",
        Flip::None,
        &texture_settings,
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, &mut window);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            use graphics::*;
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |_c, g| {
                clear([1.0; 4], g);
                let points = [[0.5, 0.5], [-0.5, 0.5], [-0.5, -0.5], [0.5, -0.5]];
                // (0, 1, 2) and (0, 2, 3)
                let uvs = [
                    [4.0, 0.0],
                    [0.0, 0.0],
                    [0.0, 4.0],
                    [4.0, 0.0],
                    [0.0, 4.0],
                    [4.0, 4.0],
                ];
                let mut verts = [[0.0, 0.0]; 6];
                let indices_points: [usize; 6] = [0, 1, 2, 0, 2, 3];
                for (ixv, &ixp) in (0..6).zip((&indices_points).into_iter()) {
                    verts[ixv] = points[ixp];
                }
                g.tri_list_uv(&DrawState::new_alpha(), &[1.0; 4], &rust_logo, |f| {
                    f(&verts, &uvs)
                });
            });
            target.finish().unwrap();
        }

        if let Some(Button::Keyboard(Key::U)) = e.press_args() {
            ix_u = (ix_u + 1) % wrap_modes.len();
            texture_settings.set_wrap_u(wrap_modes[ix_u]);
            rust_logo = Texture::from_path(
                &mut window,
                "assets/rust.png",
                Flip::None,
                &texture_settings,
            )
            .unwrap();
            println!(
                "Changed texture wrap mode for u coordinate to: {:?}",
                wrap_modes[ix_u]
            );
        }

        if let Some(Button::Keyboard(Key::V)) = e.press_args() {
            ix_v = (ix_v + 1) % wrap_modes.len();
            texture_settings.set_wrap_v(wrap_modes[ix_v]);
            rust_logo = Texture::from_path(
                &mut window,
                "assets/rust.png",
                Flip::None,
                &texture_settings,
            )
            .unwrap();
            println!(
                "Changed texture wrap mode for v coordinate to: {:?}",
                wrap_modes[ix_v]
            );
        }
    }
}
examples/draw_state.rs (line 33)
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fn main() {
    println!("Press A to change blending");
    println!("Press S to change clip inside/out");

    let opengl = OpenGL::V3_2;
    let (w, h) = (640, 480);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let mut blend = Blend::Alpha;
    let mut clip_inside = true;
    let rust_logo = Texture::from_path(
        window,
        "assets/rust.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            use graphics::*;

            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                clear([0.8, 0.8, 0.8, 1.0], g);
                g.clear_stencil(0);
                Rectangle::new([1.0, 0.0, 0.0, 1.0]).draw(
                    [0.0, 0.0, 100.0, 100.0],
                    &c.draw_state,
                    c.transform,
                    g,
                );

                let draw_state = c.draw_state.blend(blend);
                Rectangle::new([0.5, 1.0, 0.0, 0.3]).draw(
                    [50.0, 50.0, 100.0, 100.0],
                    &draw_state,
                    c.transform,
                    g,
                );

                let transform = c.transform.trans(100.0, 100.0);
                // Compute clip rectangle from upper left corner.
                let (clip_x, clip_y, clip_w, clip_h) = (100, 100, 100, 100);
                let (clip_x, clip_y, clip_w, clip_h) = (
                    clip_x,
                    c.viewport.unwrap().draw_size[1] - clip_y - clip_h,
                    clip_w,
                    clip_h,
                );
                let clipped = c.draw_state.scissor([clip_x, clip_y, clip_w, clip_h]);
                Image::new().draw(&rust_logo, &clipped, transform, g);

                let transform = c.transform.trans(200.0, 200.0);
                Ellipse::new([1.0, 0.0, 0.0, 1.0]).draw(
                    [0.0, 0.0, 50.0, 50.0],
                    &DrawState::new_clip(),
                    transform,
                    g,
                );
                Image::new().draw(
                    &rust_logo,
                    &(if clip_inside {
                        DrawState::new_inside()
                    } else {
                        DrawState::new_outside()
                    }),
                    transform,
                    g,
                );
            });

            target.finish().unwrap();
        }

        if let Some(Button::Keyboard(Key::A)) = e.press_args() {
            blend = match blend {
                Blend::Alpha => Blend::Add,
                Blend::Add => Blend::Multiply,
                Blend::Multiply => Blend::Invert,
                Blend::Invert => Blend::Lighter,
                Blend::Lighter => Blend::Alpha,
            };
            println!("Changed blending to {:?}", blend);
        }

        if let Some(Button::Keyboard(Key::S)) = e.press_args() {
            clip_inside = !clip_inside;
            if clip_inside {
                println!("Changed to clip inside");
            } else {
                println!("Changed to clip outside");
            }
        }
    }
}
source

pub fn draw<F, U>(&mut self, target: &mut Frame, viewport: Viewport, f: F) -> Uwhere F: FnOnce(Context, &mut GliumGraphics<'_, '_, Frame>) -> U,

Renders 2D graphics.

Examples found in repository?
examples/text_test.rs (lines 32-45)
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fn main() {
    let opengl = OpenGL::V3_2;
    let size = [500, 300];
    let ref mut window: GliumWindow = WindowSettings::new("gfx_graphics: text_test", size)
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let mut glyph_cache = GlyphCache::new(
        Path::new("assets/FiraSans-Regular.ttf"),
        window.clone(),
        TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                use graphics::*;

                clear([1.0; 4], g);
                text::Text::new_color([0.0, 0.5, 0.0, 1.0], 32)
                    .draw(
                        "Hello glium_graphics!",
                        &mut glyph_cache,
                        &DrawState::default(),
                        c.transform.trans(10.0, 100.0),
                        g,
                    )
                    .unwrap();
            });
            target.finish().unwrap();
        }
    }
}
More examples
Hide additional examples
examples/image_test.rs (lines 36-51)
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fn main() {
    let opengl = OpenGL::V3_2;
    let (w, h) = (300, 300);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let rust_logo = Texture::from_path(
        window,
        "assets/rust.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        use graphics::*;

        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                clear(color::WHITE, g);
                rectangle(
                    [1.0, 0.0, 0.0, 1.0],
                    [0.0, 0.0, 100.0, 100.0],
                    c.transform,
                    g,
                );
                rectangle(
                    [0.0, 1.0, 0.0, 0.3],
                    [50.0, 50.0, 100.0, 100.0],
                    c.transform,
                    g,
                );
                image(&rust_logo, c.transform.trans(100.0, 100.0), g);
            });
            target.finish().unwrap();
        }
    }
}
examples/colored_image_test.rs (lines 36-79)
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fn main() {
    let opengl = OpenGL::V3_2;
    let (w, h) = (300, 300);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: colored_image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let rust_logo = Texture::from_path(
        window,
        "assets/rust-white.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        use graphics::*;

        if let Some(args) = e.render_args() {
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                use graphics::triangulation::{tx, ty};

                let transform = c.transform.trans(0.0, 0.0);

                let tr = |p: [f64; 2]| [tx(transform, p[0], p[1]), ty(transform, p[0], p[1])];

                clear(color::WHITE, g);
                Rectangle::new([1.0, 0.0, 0.0, 1.0])
                    .draw([0.0, 0.0, 100.0, 100.0], &c.draw_state, c.transform, g);
                Rectangle::new([0.0, 1.0, 0.0, 0.3])
                    .draw([50.0, 50.0, 100.0, 100.0], &c.draw_state, c.transform, g);
                g.tri_list_uv_c(&c.draw_state, &rust_logo, |f| {
                    (f)(
                        &[
                            tr([0.0, 0.0]),
                            tr([300.0, 0.0]),
                            tr([0.0, 300.0]),

                            tr([300.0, 0.0]),
                            tr([0.0, 300.0]),
                            tr([300.0, 300.0]),
                        ],
                        &[
                            [0.0, 0.0],
                            [1.0, 0.0],
                            [0.0, 1.0],

                            [1.0, 0.0],
                            [0.0, 1.0],
                            [1.0, 1.0],
                        ],
                        &[
                            [1.0, 0.0, 0.0, 1.0],
                            [0.0, 1.0, 0.0, 1.0],
                            [0.0, 0.0, 1.0, 1.0],

                            [0.0, 00.0, 0.0, 1.0],
                            [0.0, 00.0, 0.0, 1.0],
                            [0.0, 00.0, 0.0, 1.0],
                        ]
                    )
                });
            });
            target.finish().unwrap();
        }
    }
}
examples/texture_wrap.rs (lines 50-70)
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fn main() {
    println!("Press U to change the texture wrap mode for the u coordinate");
    println!("Press V to change the texture wrap mode for the v coordinate");

    let opengl = OpenGL::V3_2;
    let (w, h) = (600, 600);
    let mut window: GliumWindow = WindowSettings::new("glium_graphics: texture_wrap", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();
    window.set_lazy(true);

    // Set up wrap modes
    let wrap_modes = [
        Wrap::ClampToEdge,
        Wrap::ClampToBorder,
        Wrap::Repeat,
        Wrap::MirroredRepeat,
    ];
    let mut ix_u = 0;
    let mut ix_v = 0;
    let mut texture_settings = TextureSettings::new();
    texture_settings.set_border_color([0.0, 0.0, 0.0, 1.0]);

    let mut rust_logo = Texture::from_path(
        &mut window,
        "assets/rust.png",
        Flip::None,
        &texture_settings,
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, &mut window);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            use graphics::*;
            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |_c, g| {
                clear([1.0; 4], g);
                let points = [[0.5, 0.5], [-0.5, 0.5], [-0.5, -0.5], [0.5, -0.5]];
                // (0, 1, 2) and (0, 2, 3)
                let uvs = [
                    [4.0, 0.0],
                    [0.0, 0.0],
                    [0.0, 4.0],
                    [4.0, 0.0],
                    [0.0, 4.0],
                    [4.0, 4.0],
                ];
                let mut verts = [[0.0, 0.0]; 6];
                let indices_points: [usize; 6] = [0, 1, 2, 0, 2, 3];
                for (ixv, &ixp) in (0..6).zip((&indices_points).into_iter()) {
                    verts[ixv] = points[ixp];
                }
                g.tri_list_uv(&DrawState::new_alpha(), &[1.0; 4], &rust_logo, |f| {
                    f(&verts, &uvs)
                });
            });
            target.finish().unwrap();
        }

        if let Some(Button::Keyboard(Key::U)) = e.press_args() {
            ix_u = (ix_u + 1) % wrap_modes.len();
            texture_settings.set_wrap_u(wrap_modes[ix_u]);
            rust_logo = Texture::from_path(
                &mut window,
                "assets/rust.png",
                Flip::None,
                &texture_settings,
            )
            .unwrap();
            println!(
                "Changed texture wrap mode for u coordinate to: {:?}",
                wrap_modes[ix_u]
            );
        }

        if let Some(Button::Keyboard(Key::V)) = e.press_args() {
            ix_v = (ix_v + 1) % wrap_modes.len();
            texture_settings.set_wrap_v(wrap_modes[ix_v]);
            rust_logo = Texture::from_path(
                &mut window,
                "assets/rust.png",
                Flip::None,
                &texture_settings,
            )
            .unwrap();
            println!(
                "Changed texture wrap mode for v coordinate to: {:?}",
                wrap_modes[ix_v]
            );
        }
    }
}
examples/draw_state.rs (lines 40-87)
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fn main() {
    println!("Press A to change blending");
    println!("Press S to change clip inside/out");

    let opengl = OpenGL::V3_2;
    let (w, h) = (640, 480);
    let ref mut window: GliumWindow = WindowSettings::new("glium_graphics: image_test", [w, h])
        .exit_on_esc(true)
        .graphics_api(opengl)
        .build()
        .unwrap();

    let mut blend = Blend::Alpha;
    let mut clip_inside = true;
    let rust_logo = Texture::from_path(
        window,
        "assets/rust.png",
        Flip::None,
        &TextureSettings::new(),
    )
    .unwrap();

    let mut g2d = Glium2d::new(opengl, window);
    window.set_lazy(true);
    while let Some(e) = window.next() {
        if let Some(args) = e.render_args() {
            use graphics::*;

            let mut target = window.draw();
            g2d.draw(&mut target, args.viewport(), |c, g| {
                clear([0.8, 0.8, 0.8, 1.0], g);
                g.clear_stencil(0);
                Rectangle::new([1.0, 0.0, 0.0, 1.0]).draw(
                    [0.0, 0.0, 100.0, 100.0],
                    &c.draw_state,
                    c.transform,
                    g,
                );

                let draw_state = c.draw_state.blend(blend);
                Rectangle::new([0.5, 1.0, 0.0, 0.3]).draw(
                    [50.0, 50.0, 100.0, 100.0],
                    &draw_state,
                    c.transform,
                    g,
                );

                let transform = c.transform.trans(100.0, 100.0);
                // Compute clip rectangle from upper left corner.
                let (clip_x, clip_y, clip_w, clip_h) = (100, 100, 100, 100);
                let (clip_x, clip_y, clip_w, clip_h) = (
                    clip_x,
                    c.viewport.unwrap().draw_size[1] - clip_y - clip_h,
                    clip_w,
                    clip_h,
                );
                let clipped = c.draw_state.scissor([clip_x, clip_y, clip_w, clip_h]);
                Image::new().draw(&rust_logo, &clipped, transform, g);

                let transform = c.transform.trans(200.0, 200.0);
                Ellipse::new([1.0, 0.0, 0.0, 1.0]).draw(
                    [0.0, 0.0, 50.0, 50.0],
                    &DrawState::new_clip(),
                    transform,
                    g,
                );
                Image::new().draw(
                    &rust_logo,
                    &(if clip_inside {
                        DrawState::new_inside()
                    } else {
                        DrawState::new_outside()
                    }),
                    transform,
                    g,
                );
            });

            target.finish().unwrap();
        }

        if let Some(Button::Keyboard(Key::A)) = e.press_args() {
            blend = match blend {
                Blend::Alpha => Blend::Add,
                Blend::Add => Blend::Multiply,
                Blend::Multiply => Blend::Invert,
                Blend::Invert => Blend::Lighter,
                Blend::Lighter => Blend::Alpha,
            };
            println!("Changed blending to {:?}", blend);
        }

        if let Some(Button::Keyboard(Key::S)) = e.press_args() {
            clip_inside = !clip_inside;
            if clip_inside {
                println!("Changed to clip inside");
            } else {
                println!("Changed to clip outside");
            }
        }
    }
}

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impl !RefUnwindSafe for Glium2d

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impl !UnwindSafe for Glium2d

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