60 lines
1.7 KiB
Rust
60 lines
1.7 KiB
Rust
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use wgpu::{ImageDataLayout, Label, TextureDescriptor};
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use wgpu::util::DeviceExt;
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use librashader_presets::TextureConfig;
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use librashader_runtime::image::{BGRA8, Image};
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use librashader_runtime::scaling::MipmapSize;
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pub(crate) struct LutTexture {
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texture: wgpu::Texture,
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}
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impl LutTexture {
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pub fn new(
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device: &wgpu::Device,
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queue: &mut wgpu::Queue,
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_cmd: &mut wgpu::CommandEncoder,
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image: Image,
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config: &TextureConfig
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) -> LutTexture {
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let texture = device.create_texture(&TextureDescriptor {
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label: Some(&config.name),
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size: image.size.into(),
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mip_level_count: if config.mipmap {
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image.size.calculate_miplevels()
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} else {
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1
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},
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sample_count: 1,
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dimension: wgpu::TextureDimension::D2,
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format: wgpu::TextureFormat::Rgba8Unorm,
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usage: wgpu::TextureUsages::TEXTURE_BINDING
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| wgpu::TextureUsages::COPY_DST
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// need render attachment for mipmaps...
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| wgpu::TextureUsages::RENDER_ATTACHMENT,
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view_formats: &[wgpu::TextureFormat::Rgba8Unorm],
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});
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queue.write_texture(
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wgpu::ImageCopyTexture {
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texture: &texture,
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mip_level: 0,
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origin: wgpu::Origin3d::ZERO,
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aspect: wgpu::TextureAspect::All,
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},
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&image.bytes,
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wgpu::ImageDataLayout {
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offset: 0,
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bytes_per_row: Some(4 * image.size.width),
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rows_per_image: None,
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},
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image.size.into()
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);
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// todo: mipmaps
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Self {
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texture
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}
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}
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}
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