1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
#![deny(missing_docs)]
use gl;
use glfw::{self, Context, CursorMode as GlfwCursorMode, SwapInterval, Window, WindowMode};
use glfw::{InitError, WindowEvent};
use luminance::context::GraphicsContext;
use luminance::framebuffer::Framebuffer;
use luminance::framebuffer::FramebufferError;
use luminance::texture::Dim2;
pub use luminance_gl::gl33::StateQueryError;
use luminance_gl::GL33;
use luminance_windowing::{CursorMode, WindowDim, WindowOpt};
use std::error;
use std::fmt;
use std::os::raw::c_void;
use std::sync::mpsc::Receiver;
#[non_exhaustive]
#[derive(Debug)]
pub enum GlfwSurfaceError {
InitError(InitError),
WindowCreationFailed,
NoPrimaryMonitor,
NoVideoMode,
GraphicsStateError(StateQueryError),
}
impl fmt::Display for GlfwSurfaceError {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
match *self {
GlfwSurfaceError::InitError(ref e) => write!(f, "initialization error: {}", e),
GlfwSurfaceError::WindowCreationFailed => f.write_str("failed to create window"),
GlfwSurfaceError::NoPrimaryMonitor => f.write_str("no primary monitor"),
GlfwSurfaceError::NoVideoMode => f.write_str("no video mode"),
GlfwSurfaceError::GraphicsStateError(ref e) => {
write!(f, "failed to get graphics state: {}", e)
}
}
}
}
impl error::Error for GlfwSurfaceError {
fn source(&self) -> Option<&(dyn error::Error + 'static)> {
match self {
GlfwSurfaceError::InitError(e) => Some(e),
GlfwSurfaceError::GraphicsStateError(e) => Some(e),
_ => None,
}
}
}
#[derive(Debug)]
pub struct GlfwSurface {
pub window: Window,
pub events_rx: Receiver<(f64, WindowEvent)>,
gl: GL33,
}
impl GlfwSurface {
pub fn new_gl33<S>(title: S, win_opt: WindowOpt) -> Result<Self, GlfwSurfaceError>
where
S: AsRef<str>,
{
#[cfg(feature = "log-errors")]
let error_cbk = glfw::LOG_ERRORS;
#[cfg(not(feature = "log-errors"))]
let error_cbk = glfw::FAIL_ON_ERRORS;
let mut glfw = glfw::init(error_cbk).map_err(GlfwSurfaceError::InitError)?;
glfw.window_hint(glfw::WindowHint::OpenGlProfile(
glfw::OpenGlProfileHint::Core,
));
glfw.window_hint(glfw::WindowHint::OpenGlForwardCompat(true));
glfw.window_hint(glfw::WindowHint::ContextVersionMajor(3));
glfw.window_hint(glfw::WindowHint::ContextVersionMinor(3));
glfw.window_hint(glfw::WindowHint::Samples(*win_opt.num_samples()));
let title = title.as_ref();
let dim = win_opt.dim;
let (mut window, events_rx) = match dim {
WindowDim::Windowed { width, height } => glfw
.create_window(width, height, title, WindowMode::Windowed)
.ok_or(GlfwSurfaceError::WindowCreationFailed)?,
WindowDim::Fullscreen => glfw.with_primary_monitor(|glfw, monitor| {
let monitor = monitor.ok_or(GlfwSurfaceError::NoPrimaryMonitor)?;
let vmode = monitor
.get_video_mode()
.ok_or(GlfwSurfaceError::NoVideoMode)?;
let (w, h) = (vmode.width, vmode.height);
Ok(
glfw
.create_window(w, h, title, WindowMode::FullScreen(monitor))
.ok_or(GlfwSurfaceError::WindowCreationFailed)?,
)
})?,
WindowDim::FullscreenRestricted { width, height } => {
glfw.with_primary_monitor(|glfw, monitor| {
let monitor = monitor.ok_or(GlfwSurfaceError::NoPrimaryMonitor)?;
Ok(
glfw
.create_window(width, height, title, WindowMode::FullScreen(monitor))
.ok_or(GlfwSurfaceError::WindowCreationFailed)?,
)
})?
}
};
window.make_current();
match win_opt.cursor_mode() {
CursorMode::Visible => window.set_cursor_mode(GlfwCursorMode::Normal),
CursorMode::Invisible => window.set_cursor_mode(GlfwCursorMode::Hidden),
CursorMode::Disabled => window.set_cursor_mode(GlfwCursorMode::Disabled),
}
window.set_all_polling(true);
glfw.set_swap_interval(SwapInterval::Sync(1));
gl::load_with(|s| window.get_proc_address(s) as *const c_void);
let gl = GL33::new().map_err(GlfwSurfaceError::GraphicsStateError)?;
let surface = GlfwSurface {
window,
events_rx,
gl,
};
Ok(surface)
}
pub fn back_buffer(&mut self) -> Result<Framebuffer<GL33, Dim2, (), ()>, FramebufferError> {
let (w, h) = self.window.get_framebuffer_size();
Framebuffer::back_buffer(self, [w as u32, h as u32])
}
}
unsafe impl GraphicsContext for GlfwSurface {
type Backend = GL33;
fn backend(&mut self) -> &mut Self::Backend {
&mut self.gl
}
}