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add ScaleMode::Fill to fill screen without black borders

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This commit is contained in:
Dennis Ranke
2025-03-02 20:19:28 +01:00
parent 0659f8a57e
commit fd10378e4d
8 changed files with 88 additions and 52 deletions
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19
uw8-window/src/gpu/square.rs
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@@ -1,7 +1,7 @@
use wgpu::util::DeviceExt;
use winit::dpi::PhysicalSize;
use super::Filter;
use super::{scale_mode::ScaleMode, Filter};
pub struct SquareFilter {
uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,10 @@ impl SquareFilter {
screen: &wgpu::TextureView,
resolution: PhysicalSize<u32>,
surface_format: wgpu::TextureFormat,
scale_mode: ScaleMode,
) -> SquareFilter {
let uniforms = Uniforms {
texture_scale: texture_scale_from_resolution(resolution),
texture_scale: scale_mode.texture_scale_from_resolution(resolution),
};
let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -126,9 +127,9 @@ impl SquareFilter {
}
impl Filter for SquareFilter {
fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
let uniforms = Uniforms {
texture_scale: texture_scale_from_resolution(new_size),
texture_scale: scale_mode.texture_scale_from_resolution(new_size),
};
queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
}
@@ -140,16 +141,6 @@ impl Filter for SquareFilter {
}
}
fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
[
scale / res.width as f32,
scale / res.height as f32,
2.0 / scale,
0.0,
]
}
#[repr(C)]
#[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
struct Uniforms {