gdritter repos chenoska / 74dd77d
Split apart functionality into library Getty Ritter 6 years ago
5 changed file(s) with 133 addition(s) and 106 deletion(s). Collapse all Expand all
+8
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Cargo.toml less more
22 name = "chenoska"
33 version = "0.1.0"
44 authors = ["Getty Ritter <samothes@infinitenegativeutility.com>"]
5
6 [lib]
7 name = "chenoska"
8 path = "src/lib.rs"
9
10 [[bin]]
11 name = "chenoska"
12 path = "src/main.rs"
513
614 [dependencies]
715 gl = "0.6.0"
+16
-1
src/graphics/errors.rs less more
11 use glutin;
2 use std::{convert, ffi, string};
2 use imagefmt;
3 use std::{convert, ffi, io, string};
34
45 #[derive(Debug)]
56 pub enum Error {
910 LinkError(String),
1011 GlutinCreation(glutin::CreationError),
1112 GlutinContext(glutin::ContextError),
13 ImageError(imagefmt::Error),
14 IOError(io::Error),
1215 OtherError(String),
1316 }
1417
3538 Error::InvalidShaderLog
3639 }
3740 }
41
42 impl convert::From<imagefmt::Error> for Error {
43 fn from(image_error: imagefmt::Error) -> Error {
44 Error::ImageError(image_error)
45 }
46 }
47
48 impl convert::From<io::Error> for Error {
49 fn from(io_error: io::Error) -> Error {
50 Error::IOError(io_error)
51 }
52 }
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src/graphics/mod.rs less more
6363
6464 result
6565 }
66
6667 }
6768
6869 pub struct Shader {
+106
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src/lib.rs less more
1 mod gl {
2 extern crate gl;
3 pub use self::gl::types::*;
4 pub use self::gl::*;
5 }
6 extern crate glutin;
7 extern crate imagefmt;
8
9 pub mod board;
10 pub mod graphics;
11 pub mod pan {
12 pub use graphics::*;
13 }
14 use graphics::vertices::V2D;
15
16 static TILE_DATA: [V2D; 4] = [
17 V2D { x: 0.5, y: -0.5, u: 1.0, v: 1.0 },
18 V2D { x: -0.5, y: -0.5, u: 0.0, v: 1.0 },
19 V2D { x: 0.5, y: 0.5, u: 1.0, v: 0.0 },
20 V2D { x: -0.5, y: 0.5, u: 0.0, v: 0.0 },
21 ];
22
23 // Shader sources
24 static VS_SRC: &'static str = "
25 #version 150
26 in vec2 position;
27 in vec2 uv;
28
29 out vec2 t_uv;
30
31 void main() {
32 gl_Position = vec4(position.x, position.y, 0.5, 1.0);
33 t_uv = uv;
34 }";
35
36 static FS_SRC: &'static str = "
37 #version 150
38
39 in vec2 t_uv;
40 out vec4 out_color;
41
42 uniform sampler2D tex;
43
44 void main() {
45 out_color = texture(tex, t_uv);
46 }";
47
48 pub fn main_loop() -> Result<(), pan::Error> {
49 let mut f = std::fs::File::open("sample.png")?;
50 let texture: imagefmt::Image<u8> = imagefmt::png::read(
51 &mut f,
52 imagefmt::ColFmt::RGBA,
53 )?;
54
55 let window = pan::Window::create()?;
56
57 let vs = pan::Shader::compile(pan::ShaderType::Vertex, VS_SRC)?;
58 let fs = pan::Shader::compile(pan::ShaderType::Fragment, FS_SRC)?;
59 let program = pan::Program::link(vec![vs, fs])?;
60
61 let tex = pan::Texture::new_from_bitmap(&texture);
62
63 let vbo = pan::VertexBuffer::new_array_buffer(
64 pan::VertexArray::new(&program),
65 &TILE_DATA,
66 );
67
68 program.use_program();
69 program.bind_frag_data_location(0, "out_color")?;
70
71 vbo.bind_position("position")?;
72 vbo.bind_uv("uv")?;
73 vbo.unbind();
74
75 window.run(|event| {
76 use glutin::{ControlFlow, Event, WindowEvent, VirtualKeyCode};
77
78 match event {
79 Event::WindowEvent { event: WindowEvent::Closed, .. } =>
80 return ControlFlow::Break,
81 Event::WindowEvent {
82 event: WindowEvent::KeyboardInput {
83 input: k,
84 ..
85 },
86 ..
87 } if k.state == glutin::ElementState::Pressed => {
88 match k.virtual_keycode {
89 Some(VirtualKeyCode::Q) =>
90 return ControlFlow::Break,
91 Some(c) => println!("pressed {:#?}", c),
92 _ => (),
93 }
94 }
95 _ => (),
96 }
97
98 pan::clear();
99 program.set_texture("tex", &tex).unwrap();
100 vbo.draw();
101
102 ControlFlow::Continue
103 })?;
104
105 Ok(())
106 }
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-105
src/main.rs less more
1 mod gl {
2 extern crate gl;
3 pub use self::gl::types::*;
4 pub use self::gl::*;
5 }
6 extern crate glutin;
7 extern crate imagefmt;
8
9 mod board;
10 mod graphics;
11 mod pan {
12 pub use graphics::*;
13 }
14 use graphics::vertices::V2D;
15
16 static TILE_DATA: [V2D; 4] = [
17 V2D { x: 0.5, y: -0.5, u: 1.0, v: 1.0 },
18 V2D { x: -0.5, y: -0.5, u: 0.0, v: 1.0 },
19 V2D { x: 0.5, y: 0.5, u: 1.0, v: 0.0 },
20 V2D { x: -0.5, y: 0.5, u: 0.0, v: 0.0 },
21 ];
22
23 // Shader sources
24 static VS_SRC: &'static str = "
25 #version 150
26 in vec2 position;
27 in vec2 uv;
28
29 out vec2 t_uv;
30
31 void main() {
32 gl_Position = vec4(position.x, position.y, 0.5, 1.0);
33 t_uv = uv;
34 }";
35
36 static FS_SRC: &'static str = "
37 #version 150
38
39 in vec2 t_uv;
40 out vec4 out_color;
41
42 uniform sampler2D tex;
43
44 void main() {
45 out_color = texture(tex, t_uv);
46 }";
47
48 pub fn main_loop() -> Result<(), pan::Error> {
49 let mut f = std::fs::File::open("sample.png").unwrap();
50 let texture: imagefmt::Image<u8> = imagefmt::png::read(&mut f, imagefmt::ColFmt::RGBA).unwrap();
51
52 let window = pan::Window::create()?;
53
54 let vs = pan::Shader::compile(pan::ShaderType::Vertex, VS_SRC)?;
55 let fs = pan::Shader::compile(pan::ShaderType::Fragment, FS_SRC)?;
56 let program = pan::Program::link(vec![vs, fs])?;
57
58 let tex = pan::Texture::new_from_bitmap(&texture);
59
60 let vbo = pan::VertexBuffer::new_array_buffer(
61 pan::VertexArray::new(&program),
62 &TILE_DATA,
63 );
64
65 program.use_program();
66 program.bind_frag_data_location(0, "out_color")?;
67
68 vbo.bind_position("position")?;
69 vbo.bind_uv("uv")?;
70 vbo.unbind();
71
72 window.run(|event| {
73 use glutin::{ControlFlow, Event, WindowEvent, VirtualKeyCode};
74
75 match event {
76 Event::WindowEvent { event: WindowEvent::Closed, .. } =>
77 return ControlFlow::Break,
78 Event::WindowEvent {
79 event: WindowEvent::KeyboardInput {
80 input: k,
81 ..
82 },
83 ..
84 } if k.state == glutin::ElementState::Pressed => {
85 match k.virtual_keycode {
86 Some(VirtualKeyCode::Q) =>
87 return ControlFlow::Break,
88 Some(c) => println!("pressed {:#?}", c),
89 _ => (),
90 }
91 }
92 _ => (),
93 }
94
95 pan::clear();
96 program.set_texture("tex", &tex).unwrap();
97 vbo.draw();
98
99 ControlFlow::Continue
100 })?;
101
102 Ok(())
103 }
104
1 extern crate chenoska;
1052
1063 fn main() {
107 if let Err(err) = main_loop() {
4 if let Err(err) = chenoska::main_loop() {
1085 println!("{:?}", err);
1096 }
1107 }