rewrite it in rust #1
67
src/app.rs
67
src/app.rs
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@ -8,7 +8,7 @@ use wgpu::util::DeviceExt as _;
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use winit::platform::windows::{CornerPreference, WindowAttributesExtWindows as _};
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use winit::{
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application::ApplicationHandler,
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dpi::LogicalSize,
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dpi::{LogicalSize, PhysicalSize},
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event::{ElementState, Event, WindowEvent},
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event_loop::ActiveEventLoop,
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keyboard::Key,
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@ -297,17 +297,8 @@ impl ApplicationHandler for App {
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match &event {
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WindowEvent::Resized(size) => {
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window.surface_desc = wgpu::SurfaceConfiguration {
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
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format: wgpu::TextureFormat::Bgra8UnormSrgb,
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width: size.width,
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height: size.height,
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present_mode: wgpu::PresentMode::Fifo,
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desired_maximum_frame_latency: 2,
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alpha_mode: wgpu::CompositeAlphaMode::Auto,
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view_formats: vec![wgpu::TextureFormat::Bgra8Unorm],
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};
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window.surface_desc.width = size.width;
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window.surface_desc.height = size.height;
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window
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.surface
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.configure(&window.device, &window.surface_desc);
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@ -345,9 +336,9 @@ impl ApplicationHandler for App {
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.prepare_frame(imgui.context.io_mut(), &window.window)
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.expect("Failed to prepare frame");
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let ui = imgui.context.frame();
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let mut height = 0.0;
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let mut menu_height = 0.0;
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ui.main_menu_bar(|| {
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height = ui.window_size()[1];
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menu_height = ui.window_size()[1];
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ui.menu("ROM", || {
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if ui.menu_item("Open ROM") {
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let rom = native_dialog::FileDialog::new()
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@ -374,6 +365,27 @@ impl ApplicationHandler for App {
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self.client.send_command(EmulatorCommand::Reset);
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}
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});
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ui.menu("Video", || {
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let current_dims = PhysicalSize::new(
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window.surface_desc.width,
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window.surface_desc.height,
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)
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.to_logical(window.hidpi_factor);
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for scale in 1..=4 {
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let label = format!("x{scale}");
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let dims = LogicalSize::new(384 * scale, 224 * scale + 20);
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let selected = dims == current_dims;
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if ui.menu_item_config(label).selected(selected).build() {
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if let Some(size) = window.window.request_inner_size(dims) {
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window.surface_desc.width = size.width;
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window.surface_desc.height = size.height;
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window
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.surface
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.configure(&window.device, &window.surface_desc);
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}
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}
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}
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});
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});
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let mut encoder: wgpu::CommandEncoder = window
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@ -403,13 +415,19 @@ impl ApplicationHandler for App {
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occlusion_query_set: None,
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});
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// Draw the game
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rpass.set_pipeline(&window.pipeline);
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let hidpi = window.hidpi_factor as f32;
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rpass.set_viewport(0.0, height * hidpi, 384.0 * hidpi, 224.0 * hidpi, 0.0, 1.0);
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let window_width = window.surface_desc.width as f32;
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let window_height = window.surface_desc.height as f32;
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let menu_height = menu_height * window.hidpi_factor as f32;
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let ((x, y), (width, height)) =
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compute_game_bounds(window_width, window_height, menu_height);
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rpass.set_viewport(x, y, width, height, 0.0, 1.0);
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rpass.set_bind_group(0, &window.bind_group, &[]);
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rpass.draw(0..6, 0..1);
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rpass.set_viewport(0.0, 0.0, 384.0 * hidpi, 224.0 * hidpi, 0.0, 1.0);
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// Draw the menu on top of the game
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rpass.set_viewport(0.0, 0.0, window_width, window_height, 0.0, 1.0);
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imgui
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.renderer
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.render(
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@ -473,6 +491,21 @@ impl ApplicationHandler for App {
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}
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}
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fn compute_game_bounds(
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window_width: f32,
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window_height: f32,
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menu_height: f32,
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) -> ((f32, f32), (f32, f32)) {
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let available_width = window_width;
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let available_height = window_height - menu_height;
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let width = available_width.min(available_height * 384.0 / 224.0);
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let height = available_height.min(available_width * 224.0 / 384.0);
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let x = (available_width - width) / 2.0;
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let y = menu_height + (available_height - height) / 2.0;
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((x, y), (width, height))
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}
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#[derive(Clone, Copy, bytemuck::Pod, bytemuck::Zeroable)]
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#[repr(C)]
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struct Colors {
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Reference in New Issue