diff options
Diffstat (limited to 'source')
| -rw-r--r-- | source/benoit/benoit/application.rs | 9 | ||||
| -rw-r--r-- | source/benoit/benoit/application/initialise.rs | 16 | ||||
| -rw-r--r-- | source/benoit/benoit/application/poll_events.rs | 8 | ||||
| -rw-r--r-- | source/benoit/benoit/application/render.rs | 29 |
4 files changed, 36 insertions, 26 deletions
diff --git a/source/benoit/benoit/application.rs b/source/benoit/benoit/application.rs index 6f85bef..144191e 100644 --- a/source/benoit/benoit/application.rs +++ b/source/benoit/benoit/application.rs @@ -38,11 +38,12 @@ pub struct Application { canvas_width: u32, canvas_height: u32, + scale: u32, - position_x: f64, - position_y: f64, - zoom: f64, - max_iteration_count: u32, + position_x: f64, + position_y: f64, + zoom: f64, + maximum_iteration_count: u32, do_render: bool, } diff --git a/source/benoit/benoit/application/initialise.rs b/source/benoit/benoit/application/initialise.rs index 012e1b0..9c9cec2 100644 --- a/source/benoit/benoit/application/initialise.rs +++ b/source/benoit/benoit/application/initialise.rs @@ -25,13 +25,14 @@ use crate::benoit::application::Application; impl Application { pub fn initialise() -> Application { - let canvas_width = 0x200; - let canvas_height = 0x200; + let canvas_width: u32 = 0x400; + let canvas_height: u32 = 0x400; + let scale: u32 = 0x1; let sdl = sdl2::init().expect("unable to initialise sdl2"); let sdl_video = sdl.video().expect("unable to initialise video"); - let window = sdl_video.window("Benoit", canvas_width, canvas_height).position_centered().build().expect("unable to open window"); + let window = sdl_video.window("Benoit", canvas_width * scale, canvas_height * scale).position_centered().build().expect("unable to open window"); let canvas = window.into_canvas().build().expect("unable to create canvas"); @@ -42,11 +43,12 @@ impl Application { canvas_width: canvas_width, canvas_height: canvas_height, + scale: scale, - position_x: 0.0, - position_y: 0.0, - zoom: 1.0, - max_iteration_count: 0x100, + position_x: 0.0, + position_y: 0.0, + zoom: 1.0, + maximum_iteration_count: 0x100, do_render: true, }; diff --git a/source/benoit/benoit/application/poll_events.rs b/source/benoit/benoit/application/poll_events.rs index 5057054..a83678d 100644 --- a/source/benoit/benoit/application/poll_events.rs +++ b/source/benoit/benoit/application/poll_events.rs @@ -68,10 +68,10 @@ impl Application { _ => 0.0, }; - self.max_iteration_count = match scancode { - Scancode::F => self.max_iteration_count * 0x2, - Scancode::R => self.max_iteration_count / 0x2, - _ => self.max_iteration_count, + self.maximum_iteration_count = match scancode { + Scancode::F => self.maximum_iteration_count * 0x2, + Scancode::R => self.maximum_iteration_count / 0x2, + _ => self.maximum_iteration_count, }; self.do_render = match scancode { diff --git a/source/benoit/benoit/application/render.rs b/source/benoit/benoit/application/render.rs index eca2fe6..cc5b9ce 100644 --- a/source/benoit/benoit/application/render.rs +++ b/source/benoit/benoit/application/render.rs @@ -26,16 +26,16 @@ use crate::benoit::application::Application; extern crate sdl2; use sdl2::pixels::Color; -use sdl2::rect::Point; +use sdl2::rect::Rect; use std::time::Instant; impl Application { pub fn render(&mut self) { - eprintln!("rendering: {} + {}i @ {}", self.position_x, self.position_y, self.zoom); + eprintln!("rendering: {}{:+}i ({}x) @ ({})", self.position_x, self.position_y, self.zoom, self.maximum_iteration_count); - let canvas_size = self.canvas_height* self.canvas_width; + let canvas_size = self.canvas_height * self.canvas_width; - let mut data: Vec<u32> = Vec::with_capacity(self.canvas_height as usize * self.canvas_width as usize); + let mut data = Vec::<u32>::with_capacity(canvas_size as usize); let time_start = Instant::now(); @@ -51,7 +51,7 @@ impl Application { let mut zb: f64 = 0.0; let mut iteration_count: u32 = 0x0; - while iteration_count < self.max_iteration_count { + while iteration_count < self.maximum_iteration_count { let square_distance = (za * za + zb * zb).sqrt(); if square_distance > 2.0 * 2.0 { break } @@ -77,21 +77,28 @@ impl Application { let duration = time_start.elapsed(); for pixel in 0x0..canvas_size { - let y = pixel / self.canvas_width; - let x = pixel - y * self.canvas_width; + let y = pixel as u32 / self.canvas_width; + let x = pixel as u32 - y * self.canvas_width; let iteration_count = data[pixel as usize]; - let value: u8 = if iteration_count != self.max_iteration_count { - (iteration_count as f32 / 64.0 % 1.0 * 255.0).round() as u8 + let factor = iteration_count as f32 / 64.0 % 1.0; + + let value: u8 = if iteration_count != self.maximum_iteration_count { + (factor * 255.0).round() as u8 } else { 0x0 }; let colour = Color::RGB(value, value, value); self.canvas.set_draw_color(colour); - let point = Point::new(x as i32, y as i32); - self.canvas.draw_point(point).unwrap(); + let rectangle = Rect::new( + (x * self.scale) as i32, + (y * self.scale) as i32, + self.scale, + self.scale + ); + self.canvas.fill_rects(&[rectangle]).unwrap(); } self.canvas.present(); |