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Fix incorrect padding calculations

The extra window padding was calculated in the renderer which lead to
problems with the paddings calculated in the `src/display.rs` and
`src/term/mod.rs`.

As a solution, every instance of `config.padding().x/y` has been removed
from the renderer (`src/renderer/mod.rs`), instead the padding is always
passed through from the `src/display.rs`.

The initial calculations during display creation and after resize then
are scaled appropriately and then the extra padding is calculated. As a
result every other location can just make use of the correctly
calculated `size_info.padding_x` and `size_info.padding_y`.

The documentation has been changed to clearly state that the padding is
scaled by DPI now.

This fixes #1773.
This commit is contained in:
Christian Duerr 2018-11-12 18:23:23 +00:00 committed by GitHub
parent 4a8d18cdee
commit d05d16f023
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
7 changed files with 74 additions and 75 deletions

View file

@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
### Fixed
- Mouse cursor alignment issues and truncated last line caused by incorrect padding calculations
## Version 0.2.2
### Added

30
Cargo.lock generated
View file

@ -22,7 +22,7 @@ dependencies = [
[[package]]
name = "alacritty"
version = "0.2.1"
version = "0.2.2"
dependencies = [
"arraydeque 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
"base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
@ -684,9 +684,9 @@ name = "failure_derive"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.19 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.20 (registry+https://github.com/rust-lang/crates.io-index)",
"synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -1420,9 +1420,9 @@ version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.19 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.20 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -1643,7 +1643,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "proc-macro2"
version = "0.4.21"
version = "0.4.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -1664,7 +1664,7 @@ name = "quote"
version = "0.6.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -1946,9 +1946,9 @@ name = "serde_derive"
version = "1.0.80"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.19 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.20 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
@ -2094,10 +2094,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "syn"
version = "0.15.19"
version = "0.15.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2107,9 +2107,9 @@ name = "synstructure"
version = "0.10.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)",
"proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.19 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.15.20 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
@ -2940,7 +2940,7 @@ dependencies = [
"checksum pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "676e8eb2b1b4c9043511a9b7bea0915320d7e502b0a079fb03f9635a5252b18c"
"checksum png 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f54b9600d584d3b8a739e1662a595fab051329eff43f20e7d8cc22872962145b"
"checksum podio 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "780fb4b6698bbf9cf2444ea5d22411cef2953f0824b98f33cf454ec5615645bd"
"checksum proc-macro2 0.4.21 (registry+https://github.com/rust-lang/crates.io-index)" = "ab2fc21ba78ac73e4ff6b3818ece00be4e175ffbef4d0a717d978b48b24150c4"
"checksum proc-macro2 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)" = "88dae56b29da695d783ea7fc5a90de281f79eb38407e77f6d674dd8befc4ac47"
"checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
"checksum quote 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "53fa22a1994bd0f9372d7a816207d8a2677ad0325b073f5c5332760f0fb62b5c"
@ -2993,7 +2993,7 @@ dependencies = [
"checksum static_assertions 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c19be23126415861cb3a23e501d34a708f7f9b2183c5252d690941c2e69199d5"
"checksum stb_truetype 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "48fa7d3136d8645909de1f7c7eb5416cc43057a75ace08fc39ae736bc9da8af1"
"checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
"checksum syn 0.15.19 (registry+https://github.com/rust-lang/crates.io-index)" = "39054bb43f2c5e4f3aef47718a391bf397c1b820fefc86f467d4d354f67bf7ef"
"checksum syn 0.15.20 (registry+https://github.com/rust-lang/crates.io-index)" = "8886c8d2774e853fcd7d9d2131f6e40ba46c9c0e358e4d57178452abd6859bb0"
"checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
"checksum termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4096add70612622289f2fdcdbd5086dc81c1e2675e6ae58d6c4f62a16c6d7f2f"

View file

@ -23,7 +23,7 @@ window:
# Window padding (changes require restart)
#
# Blank space added around the window in pixels. This padding is not scaled
# Blank space added around the window in pixels. This padding is scaled
# by DPI and the specified value is always added at both opposing sides.
padding:
x: 2

View file

@ -23,7 +23,7 @@ window:
# Window padding (changes require restart)
#
# Blank space added around the window in pixels. This padding is not scaled
# Blank space added around the window in pixels. This padding is scaled
# by DPI and the specified value is always added at both opposing sides.
padding:
x: 2

View file

@ -23,7 +23,7 @@ window:
# Window padding (changes require restart)
#
# Blank space added around the window in pixels. This padding is not scaled
# Blank space added around the window in pixels. This padding is scaled
# by DPI and the specified value is always added at both opposing sides.
padding:
x: 2

View file

@ -144,28 +144,34 @@ impl Display {
.expect("glutin returns window size").to_physical(dpr);
// Create renderer
let mut renderer = QuadRenderer::new(config, viewport_size, dpr)?;
let mut renderer = QuadRenderer::new(viewport_size)?;
let (glyph_cache, cell_width, cell_height) =
Self::new_glyph_cache(dpr, &mut renderer, config)?;
let dimensions = options.dimensions()
.unwrap_or_else(|| config.dimensions());
// Resize window to specified dimensions unless one or both dimensions are 0
if dimensions.columns_u32() > 0 && dimensions.lines_u32() > 0 {
let width = cell_width as u32 * dimensions.columns_u32();
let height = cell_height as u32 * dimensions.lines_u32();
debug_assert!(dimensions.columns_u32() > 0);
debug_assert!(dimensions.lines_u32() > 0);
let new_viewport_size = PhysicalSize::new(
f64::from(width + 2 * (f64::from(config.padding().x) * dpr) as u32),
f64::from(height + 2 * (f64::from(config.padding().y) * dpr) as u32) as f64);
let width = cell_width as u32 * dimensions.columns_u32();
let height = cell_height as u32 * dimensions.lines_u32();
window.set_inner_size(new_viewport_size.to_logical(dpr));
renderer.resize(new_viewport_size, dpr, cell_width as i32, cell_height as i32);
viewport_size = new_viewport_size;
}
let mut padding_x = f64::from(config.padding().x) * dpr;
let mut padding_y = f64::from(config.padding().y) * dpr;
padding_x = padding_x + (f64::from(width) - 2. * padding_x) % f64::from(cell_width) / 2.;
padding_y = padding_y + (f64::from(height) - 2. * padding_y) % f64::from(cell_height) / 2.;
padding_x = padding_x.floor();
padding_y = padding_y.floor();
viewport_size = PhysicalSize::new(
f64::from(width) + 2. * padding_x,
f64::from(height) + 2. * padding_y,
);
window.set_inner_size(viewport_size.to_logical(dpr));
renderer.resize(viewport_size, padding_x as f32, padding_y as f32);
info!("Cell Size: ({} x {})", cell_width, cell_height);
@ -175,8 +181,8 @@ impl Display {
height: viewport_size.height as f32,
cell_width: cell_width as f32,
cell_height: cell_height as f32,
padding_x: (f64::from(config.padding().x) * dpr).floor() as f32,
padding_y: (f64::from(config.padding().y) * dpr).floor() as f32,
padding_x: padding_x as f32,
padding_y: padding_y as f32,
};
// Channel for resize events
@ -302,16 +308,27 @@ impl Display {
self.font_size = terminal.font_size;
self.size_info.dpr = dpr;
self.size_info.padding_x = (f64::from(config.padding().x) * dpr).floor() as f32;
self.size_info.padding_y = (f64::from(config.padding().y) * dpr).floor() as f32;
self.update_glyph_cache(config);
}
// Receive any resize events; only call gl::Viewport on last
// available
if let Some(psize) = new_size.take() {
self.size_info.width = psize.width as f32;
self.size_info.height = psize.height as f32;
let width = psize.width as f32;
let height = psize.height as f32;
let cell_width = self.size_info.cell_width;
let cell_height = self.size_info.cell_height;
self.size_info.width = width;
self.size_info.height = height;
let mut padding_x = f32::from(config.padding().x) * dpr as f32;
let mut padding_y = f32::from(config.padding().y) * dpr as f32;
padding_x = (padding_x + ((width - 2. * padding_x) % cell_width) / 2.).floor();
padding_y = (padding_y + ((height - 2. * padding_y) % cell_height) / 2.).floor();
self.size_info.padding_x = padding_x;
self.size_info.padding_y = padding_y;
let size = &self.size_info;
terminal.resize(size);
@ -320,11 +337,8 @@ impl Display {
item.on_resize(size)
}
let cw = self.size_info.cell_width as i32;
let ch = self.size_info.cell_height as i32;
self.window.resize(psize);
self.renderer.resize(psize, dpr, cw, ch);
self.renderer.resize(psize, padding_x, padding_y);
}
}

View file

@ -118,9 +118,6 @@ pub struct ShaderProgram {
///
/// Rendering is split into two passes; 1 for backgrounds, and one for text
u_background: GLint,
padding_x: u8,
padding_y: u8,
}
#[derive(Debug, Clone)]
@ -472,8 +469,8 @@ const ATLAS_SIZE: i32 = 1024;
impl QuadRenderer {
// TODO should probably hand this a transform instead of width/height
pub fn new(config: &Config, size: PhysicalSize, dpr: f64) -> Result<QuadRenderer, Error> {
let program = ShaderProgram::new(config, size, dpr)?;
pub fn new(size: PhysicalSize) -> Result<QuadRenderer, Error> {
let program = ShaderProgram::new(size)?;
let mut vao: GLuint = 0;
let mut vbo: GLuint = 0;
@ -668,7 +665,7 @@ impl QuadRenderer {
while let Ok(msg) = self.rx.try_recv() {
match msg {
Msg::ShaderReload => {
self.reload_shaders(config, PhysicalSize::new(f64::from(props.width), f64::from(props.height)), props.dpr);
self.reload_shaders(PhysicalSize::new(f64::from(props.width), f64::from(props.height)));
}
}
}
@ -720,9 +717,9 @@ impl QuadRenderer {
})
}
pub fn reload_shaders(&mut self, config: &Config, size: PhysicalSize, dpr: f64) {
pub fn reload_shaders(&mut self, size: PhysicalSize) {
warn!("Reloading shaders ...");
let program = match ShaderProgram::new(config, size, dpr) {
let program = match ShaderProgram::new(size) {
Ok(program) => {
warn!(" ... OK");
program
@ -748,30 +745,21 @@ impl QuadRenderer {
self.program = program;
}
pub fn resize(&mut self, size: PhysicalSize, dpr: f64, cell_width: i32, cell_height: i32) {
pub fn resize(&mut self, size: PhysicalSize, padding_x: f32, padding_y: f32) {
let (width, height): (u32, u32) = size.into();
let (width, height) = (width as i32, height as i32);
let mut padding_x = (f64::from(self.program.padding_x) * dpr) as i32;
let mut padding_y = (f64::from(self.program.padding_y) * dpr) as i32;
// Add padding to center the grid inside the window
padding_y += ((height - 2 * padding_y) % cell_height) / 2;
padding_x += ((width - 2 * padding_x) % cell_width) / 2;
// viewport
unsafe {
let width = width as i32;
let height = height as i32;
let padding_x = padding_x as i32;
let padding_y = padding_y as i32;
gl::Viewport(padding_x, padding_y, width - 2 * padding_x, height - 2 * padding_y);
}
// update projection
self.program.activate();
self.program.update_projection(
width as f32,
height as f32,
padding_x as f32,
padding_y as f32,
);
self.program.update_projection(width as f32, height as f32, padding_x, padding_y);
self.program.deactivate();
}
}
@ -1007,11 +995,7 @@ impl ShaderProgram {
}
}
pub fn new(
config: &Config,
size: PhysicalSize,
dpr: f64
) -> Result<ShaderProgram, ShaderCreationError> {
pub fn new(size: PhysicalSize) -> Result<ShaderProgram, ShaderCreationError> {
let vertex_source = if cfg!(feature = "live-shader-reload") {
None
} else {
@ -1061,9 +1045,6 @@ impl ShaderProgram {
assert_uniform_valid!(projection, term_dim, cell_dim);
let padding_x = (f32::from(config.padding().x) * dpr as f32).floor();
let padding_y = (f32::from(config.padding().y) * dpr as f32).floor();
let shader = ShaderProgram {
id: program,
u_projection: projection,
@ -1071,11 +1052,9 @@ impl ShaderProgram {
u_cell_dim: cell_dim,
u_visual_bell: visual_bell,
u_background: background,
padding_x: padding_x as u8,
padding_y: padding_y as u8,
};
shader.update_projection(size.width as f32, size.height as f32, padding_x, padding_y);
shader.update_projection(size.width as f32, size.height as f32, 0., 0.);
shader.deactivate();