project structure cleanup

2021-04-16 10:54:00 +02:00
parent 9cd599743d
commit 3ad54777cd
8 changed files with 107 additions and 97 deletions
@@ -0,0 +1,61 @@
+use std::path::Path;
+use image::GenericImageView;
+
+pub struct Texture {
+    pub texture: wgpu::Texture,
+    pub view: wgpu::TextureView,
+    pub sampler: wgpu::Sampler,
+}
+
+impl Texture {
+
+    pub fn from_file(device: &wgpu::Device, queue: &wgpu::Queue, str_path: &str) -> Self {
+        let img_path = Path::new(str_path);
+        let img = image::open(img_path).unwrap();
+        Self::from_image(&device, &queue, &img)
+    }
+
+    pub fn from_image(device: &wgpu::Device, queue: &wgpu::Queue, img: &image::DynamicImage) -> Self {
+        // Data from image
+        let img_dim = img.dimensions();
+        let img_data = img.as_rgba8().unwrap();
+        
+        // Create texture on device
+        let texture_size = wgpu::Extent3d { width: img_dim.0, height: img_dim.1, depth: 1, };
+        let texture = device.create_texture(&wgpu::TextureDescriptor {
+            size: texture_size,
+            mip_level_count: 1,
+            sample_count: 1,
+            dimension: wgpu::TextureDimension::D2,
+            format: wgpu::TextureFormat::Rgba8UnormSrgb,
+            usage: wgpu::TextureUsage::SAMPLED | wgpu::TextureUsage::COPY_DST,
+            label: None,
+        });
+
+        // Write texture to memory
+        queue.write_texture(
+            wgpu::TextureCopyView { texture: &texture, mip_level: 0, origin: wgpu::Origin3d::ZERO },
+            img_data,
+            wgpu::TextureDataLayout { offset: 0, bytes_per_row: 4 * img_dim.0, rows_per_image: img_dim.1 },
+            texture_size,
+        );
+
+        // Create view and sampler
+        let view = texture.create_view(&wgpu::TextureViewDescriptor::default());
+        let sampler = device.create_sampler(
+            &wgpu::SamplerDescriptor {
+                address_mode_u: wgpu::AddressMode::ClampToEdge,
+                address_mode_v: wgpu::AddressMode::ClampToEdge,
+                address_mode_w: wgpu::AddressMode::ClampToEdge,
+                //mag_filter: wgpu::FilterMode::Linear,
+                mag_filter: wgpu::FilterMode::Nearest,
+                min_filter: wgpu::FilterMode::Nearest,
+                mipmap_filter: wgpu::FilterMode::Nearest,
+                ..Default::default()
+            }
+        );
+
+        Self { texture, view, sampler }
+    }
+
+}