mirror of
https://github.com/bevyengine/bevy
synced 2025-01-09 03:38:55 +00:00
6903a9411b
# Objective - Get rid of giant match statement to get PixelInfo. - This will allow for supporting any texture that is uncompressed, instead of people needing to PR in any textures that are supported in wgpu, but not bevy. ## Solution - More conservative alternative to https://github.com/bevyengine/bevy/pull/6788, where we don't try to make some of the calculations correct for compressed types. - Delete `PixelInfo` and get the pixel_size directly from wgpu. Data from wgpu is here: https://docs.rs/wgpu-types/0.14.0/src/wgpu_types/lib.rs.html#2359 - Panic if the texture is a compressed type. An integer byte size of a pixel is no longer a valid concept when talking about compressed textures. - All internal usages use `pixel_size` and not `pixel_info` and are on uncompressed formats. Most of these usages are on either explicit texture formats or slightly indirectly through `TextureFormat::bevy_default()`. The other uses are in `TextureAtlas` and have other calculations that assumes the texture is uncompressed. ## Changelog - remove `PixelInfo` and get `pixel_size` from wgpu ## Migration Guide `PixelInfo` has been removed. `PixelInfo::components` is equivalent to `texture_format.describe().components`. `PixelInfo::type_size` can be gotten from `texture_format.describe().block_size/ texture_format.describe().components`. But note this can yield incorrect results for some texture types like Rg11b10Float.
631 lines
22 KiB
Rust
631 lines
22 KiB
Rust
#[cfg(feature = "basis-universal")]
|
|
use super::basis::*;
|
|
#[cfg(feature = "dds")]
|
|
use super::dds::*;
|
|
#[cfg(feature = "ktx2")]
|
|
use super::ktx2::*;
|
|
|
|
use crate::{
|
|
render_asset::{PrepareAssetError, RenderAsset},
|
|
render_resource::{Sampler, Texture, TextureView},
|
|
renderer::{RenderDevice, RenderQueue},
|
|
texture::BevyDefault,
|
|
};
|
|
use bevy_asset::HandleUntyped;
|
|
use bevy_derive::{Deref, DerefMut};
|
|
use bevy_ecs::system::{lifetimeless::SRes, Resource, SystemParamItem};
|
|
use bevy_math::Vec2;
|
|
use bevy_reflect::{FromReflect, Reflect, TypeUuid};
|
|
use std::hash::Hash;
|
|
use thiserror::Error;
|
|
use wgpu::{Extent3d, TextureDimension, TextureFormat, TextureViewDescriptor};
|
|
|
|
pub const TEXTURE_ASSET_INDEX: u64 = 0;
|
|
pub const SAMPLER_ASSET_INDEX: u64 = 1;
|
|
pub const DEFAULT_IMAGE_HANDLE: HandleUntyped =
|
|
HandleUntyped::weak_from_u64(Image::TYPE_UUID, 13148262314052771789);
|
|
|
|
#[derive(Debug)]
|
|
pub enum ImageFormat {
|
|
Avif,
|
|
Basis,
|
|
Bmp,
|
|
Dds,
|
|
Farbfeld,
|
|
Gif,
|
|
Hdr,
|
|
Ico,
|
|
Jpeg,
|
|
Ktx2,
|
|
Png,
|
|
Pnm,
|
|
Tga,
|
|
Tiff,
|
|
WebP,
|
|
}
|
|
|
|
impl ImageFormat {
|
|
pub fn from_mime_type(mime_type: &str) -> Option<Self> {
|
|
Some(match mime_type.to_ascii_lowercase().as_str() {
|
|
"image/bmp" | "image/x-bmp" => ImageFormat::Bmp,
|
|
"image/vnd-ms.dds" => ImageFormat::Dds,
|
|
"image/jpeg" => ImageFormat::Jpeg,
|
|
"image/ktx2" => ImageFormat::Ktx2,
|
|
"image/png" => ImageFormat::Png,
|
|
"image/x-targa" | "image/x-tga" => ImageFormat::Tga,
|
|
_ => return None,
|
|
})
|
|
}
|
|
|
|
pub fn from_extension(extension: &str) -> Option<Self> {
|
|
Some(match extension.to_ascii_lowercase().as_str() {
|
|
"avif" => ImageFormat::Avif,
|
|
"basis" => ImageFormat::Basis,
|
|
"bmp" => ImageFormat::Bmp,
|
|
"dds" => ImageFormat::Dds,
|
|
"ff" | "farbfeld" => ImageFormat::Farbfeld,
|
|
"gif" => ImageFormat::Gif,
|
|
"hdr" => ImageFormat::Hdr,
|
|
"ico" => ImageFormat::Ico,
|
|
"jpg" | "jpeg" => ImageFormat::Jpeg,
|
|
"ktx2" => ImageFormat::Ktx2,
|
|
"pbm" | "pam" | "ppm" | "pgm" => ImageFormat::Pnm,
|
|
"png" => ImageFormat::Png,
|
|
"tga" => ImageFormat::Tga,
|
|
"tif" | "tiff" => ImageFormat::Tiff,
|
|
"webp" => ImageFormat::WebP,
|
|
_ => return None,
|
|
})
|
|
}
|
|
|
|
pub fn as_image_crate_format(&self) -> Option<image::ImageFormat> {
|
|
Some(match self {
|
|
ImageFormat::Avif => image::ImageFormat::Avif,
|
|
ImageFormat::Bmp => image::ImageFormat::Bmp,
|
|
ImageFormat::Dds => image::ImageFormat::Dds,
|
|
ImageFormat::Farbfeld => image::ImageFormat::Farbfeld,
|
|
ImageFormat::Gif => image::ImageFormat::Gif,
|
|
ImageFormat::Hdr => image::ImageFormat::Hdr,
|
|
ImageFormat::Ico => image::ImageFormat::Ico,
|
|
ImageFormat::Jpeg => image::ImageFormat::Jpeg,
|
|
ImageFormat::Png => image::ImageFormat::Png,
|
|
ImageFormat::Pnm => image::ImageFormat::Pnm,
|
|
ImageFormat::Tga => image::ImageFormat::Tga,
|
|
ImageFormat::Tiff => image::ImageFormat::Tiff,
|
|
ImageFormat::WebP => image::ImageFormat::WebP,
|
|
ImageFormat::Basis | ImageFormat::Ktx2 => return None,
|
|
})
|
|
}
|
|
}
|
|
|
|
#[derive(Reflect, FromReflect, Debug, Clone, TypeUuid)]
|
|
#[uuid = "6ea26da6-6cf8-4ea2-9986-1d7bf6c17d6f"]
|
|
#[reflect_value]
|
|
pub struct Image {
|
|
pub data: Vec<u8>,
|
|
// TODO: this nesting makes accessing Image metadata verbose. Either flatten out descriptor or add accessors
|
|
pub texture_descriptor: wgpu::TextureDescriptor<'static>,
|
|
/// The [`ImageSampler`] to use during rendering.
|
|
pub sampler_descriptor: ImageSampler,
|
|
pub texture_view_descriptor: Option<wgpu::TextureViewDescriptor<'static>>,
|
|
}
|
|
|
|
/// Used in [`Image`], this determines what image sampler to use when rendering. The default setting,
|
|
/// [`ImageSampler::Default`], will read the sampler from the [`ImagePlugin`](super::ImagePlugin) at setup.
|
|
/// Setting this to [`ImageSampler::Descriptor`] will override the global default descriptor for this [`Image`].
|
|
#[derive(Debug, Default, Clone)]
|
|
pub enum ImageSampler {
|
|
/// Default image sampler, derived from the [`ImagePlugin`](super::ImagePlugin) setup.
|
|
#[default]
|
|
Default,
|
|
/// Custom sampler for this image which will override global default.
|
|
Descriptor(wgpu::SamplerDescriptor<'static>),
|
|
}
|
|
|
|
impl ImageSampler {
|
|
/// Returns an image sampler with `Linear` min and mag filters
|
|
#[inline]
|
|
pub fn linear() -> ImageSampler {
|
|
ImageSampler::Descriptor(Self::linear_descriptor())
|
|
}
|
|
|
|
/// Returns an image sampler with `nearest` min and mag filters
|
|
#[inline]
|
|
pub fn nearest() -> ImageSampler {
|
|
ImageSampler::Descriptor(Self::nearest_descriptor())
|
|
}
|
|
|
|
/// Returns a sampler descriptor with `Linear` min and mag filters
|
|
#[inline]
|
|
pub fn linear_descriptor() -> wgpu::SamplerDescriptor<'static> {
|
|
wgpu::SamplerDescriptor {
|
|
mag_filter: wgpu::FilterMode::Linear,
|
|
min_filter: wgpu::FilterMode::Linear,
|
|
mipmap_filter: wgpu::FilterMode::Linear,
|
|
..Default::default()
|
|
}
|
|
}
|
|
|
|
/// Returns a sampler descriptor with `Nearest` min and mag filters
|
|
#[inline]
|
|
pub fn nearest_descriptor() -> wgpu::SamplerDescriptor<'static> {
|
|
wgpu::SamplerDescriptor {
|
|
mag_filter: wgpu::FilterMode::Nearest,
|
|
min_filter: wgpu::FilterMode::Nearest,
|
|
mipmap_filter: wgpu::FilterMode::Nearest,
|
|
..Default::default()
|
|
}
|
|
}
|
|
}
|
|
|
|
/// A rendering resource for the default image sampler which is set during renderer
|
|
/// initialization.
|
|
///
|
|
/// The [`ImagePlugin`](super::ImagePlugin) can be set during app initialization to change the default
|
|
/// image sampler.
|
|
#[derive(Resource, Debug, Clone, Deref, DerefMut)]
|
|
pub struct DefaultImageSampler(pub(crate) Sampler);
|
|
|
|
impl Default for Image {
|
|
fn default() -> Self {
|
|
let format = wgpu::TextureFormat::bevy_default();
|
|
let data = vec![255; format.pixel_size()];
|
|
Image {
|
|
data,
|
|
texture_descriptor: wgpu::TextureDescriptor {
|
|
size: wgpu::Extent3d {
|
|
width: 1,
|
|
height: 1,
|
|
depth_or_array_layers: 1,
|
|
},
|
|
format,
|
|
dimension: wgpu::TextureDimension::D2,
|
|
label: None,
|
|
mip_level_count: 1,
|
|
sample_count: 1,
|
|
usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
|
|
},
|
|
sampler_descriptor: ImageSampler::Default,
|
|
texture_view_descriptor: None,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Image {
|
|
/// Creates a new image from raw binary data and the corresponding metadata.
|
|
///
|
|
/// # Panics
|
|
/// Panics if the length of the `data`, volume of the `size` and the size of the `format`
|
|
/// do not match.
|
|
pub fn new(
|
|
size: Extent3d,
|
|
dimension: TextureDimension,
|
|
data: Vec<u8>,
|
|
format: TextureFormat,
|
|
) -> Self {
|
|
debug_assert_eq!(
|
|
size.volume() * format.pixel_size(),
|
|
data.len(),
|
|
"Pixel data, size and format have to match",
|
|
);
|
|
let mut image = Self {
|
|
data,
|
|
..Default::default()
|
|
};
|
|
image.texture_descriptor.dimension = dimension;
|
|
image.texture_descriptor.size = size;
|
|
image.texture_descriptor.format = format;
|
|
image
|
|
}
|
|
|
|
/// Creates a new image from raw binary data and the corresponding metadata, by filling
|
|
/// the image data with the `pixel` data repeated multiple times.
|
|
///
|
|
/// # Panics
|
|
/// Panics if the size of the `format` is not a multiple of the length of the `pixel` data.
|
|
/// do not match.
|
|
pub fn new_fill(
|
|
size: Extent3d,
|
|
dimension: TextureDimension,
|
|
pixel: &[u8],
|
|
format: TextureFormat,
|
|
) -> Self {
|
|
let mut value = Image::default();
|
|
value.texture_descriptor.format = format;
|
|
value.texture_descriptor.dimension = dimension;
|
|
value.resize(size);
|
|
|
|
debug_assert_eq!(
|
|
pixel.len() % format.pixel_size(),
|
|
0,
|
|
"Must not have incomplete pixel data."
|
|
);
|
|
debug_assert!(
|
|
pixel.len() <= value.data.len(),
|
|
"Fill data must fit within pixel buffer."
|
|
);
|
|
|
|
for current_pixel in value.data.chunks_exact_mut(pixel.len()) {
|
|
current_pixel.copy_from_slice(pixel);
|
|
}
|
|
value
|
|
}
|
|
|
|
/// Returns the aspect ratio (height/width) of a 2D image.
|
|
pub fn aspect_2d(&self) -> f32 {
|
|
self.texture_descriptor.size.height as f32 / self.texture_descriptor.size.width as f32
|
|
}
|
|
|
|
/// Returns the size of a 2D image.
|
|
pub fn size(&self) -> Vec2 {
|
|
Vec2::new(
|
|
self.texture_descriptor.size.width as f32,
|
|
self.texture_descriptor.size.height as f32,
|
|
)
|
|
}
|
|
|
|
/// Resizes the image to the new size, by removing information or appending 0 to the `data`.
|
|
/// Does not properly resize the contents of the image, but only its internal `data` buffer.
|
|
pub fn resize(&mut self, size: Extent3d) {
|
|
self.texture_descriptor.size = size;
|
|
self.data.resize(
|
|
size.volume() * self.texture_descriptor.format.pixel_size(),
|
|
0,
|
|
);
|
|
}
|
|
|
|
/// Changes the `size`, asserting that the total number of data elements (pixels) remains the
|
|
/// same.
|
|
///
|
|
/// # Panics
|
|
/// Panics if the `new_size` does not have the same volume as to old one.
|
|
pub fn reinterpret_size(&mut self, new_size: Extent3d) {
|
|
assert!(
|
|
new_size.volume() == self.texture_descriptor.size.volume(),
|
|
"Incompatible sizes: old = {:?} new = {:?}",
|
|
self.texture_descriptor.size,
|
|
new_size
|
|
);
|
|
|
|
self.texture_descriptor.size = new_size;
|
|
}
|
|
|
|
/// Takes a 2D image containing vertically stacked images of the same size, and reinterprets
|
|
/// it as a 2D array texture, where each of the stacked images becomes one layer of the
|
|
/// array. This is primarily for use with the `texture2DArray` shader uniform type.
|
|
///
|
|
/// # Panics
|
|
/// Panics if the texture is not 2D, has more than one layers or is not evenly dividable into
|
|
/// the `layers`.
|
|
pub fn reinterpret_stacked_2d_as_array(&mut self, layers: u32) {
|
|
// Must be a stacked image, and the height must be divisible by layers.
|
|
assert!(self.texture_descriptor.dimension == TextureDimension::D2);
|
|
assert!(self.texture_descriptor.size.depth_or_array_layers == 1);
|
|
assert_eq!(self.texture_descriptor.size.height % layers, 0);
|
|
|
|
self.reinterpret_size(Extent3d {
|
|
width: self.texture_descriptor.size.width,
|
|
height: self.texture_descriptor.size.height / layers,
|
|
depth_or_array_layers: layers,
|
|
});
|
|
}
|
|
|
|
/// Convert a texture from a format to another. Only a few formats are
|
|
/// supported as input and output:
|
|
/// - `TextureFormat::R8Unorm`
|
|
/// - `TextureFormat::Rg8Unorm`
|
|
/// - `TextureFormat::Rgba8UnormSrgb`
|
|
///
|
|
/// To get [`Image`] as a [`image::DynamicImage`] see:
|
|
/// [`Image::try_into_dynamic`].
|
|
pub fn convert(&self, new_format: TextureFormat) -> Option<Self> {
|
|
self.clone()
|
|
.try_into_dynamic()
|
|
.ok()
|
|
.and_then(|img| match new_format {
|
|
TextureFormat::R8Unorm => {
|
|
Some((image::DynamicImage::ImageLuma8(img.into_luma8()), false))
|
|
}
|
|
TextureFormat::Rg8Unorm => Some((
|
|
image::DynamicImage::ImageLumaA8(img.into_luma_alpha8()),
|
|
false,
|
|
)),
|
|
TextureFormat::Rgba8UnormSrgb => {
|
|
Some((image::DynamicImage::ImageRgba8(img.into_rgba8()), true))
|
|
}
|
|
_ => None,
|
|
})
|
|
.map(|(dyn_img, is_srgb)| Self::from_dynamic(dyn_img, is_srgb))
|
|
}
|
|
|
|
/// Load a bytes buffer in a [`Image`], according to type `image_type`, using the `image`
|
|
/// crate
|
|
pub fn from_buffer(
|
|
buffer: &[u8],
|
|
image_type: ImageType,
|
|
#[allow(unused_variables)] supported_compressed_formats: CompressedImageFormats,
|
|
is_srgb: bool,
|
|
) -> Result<Image, TextureError> {
|
|
let format = image_type.to_image_format()?;
|
|
|
|
// Load the image in the expected format.
|
|
// Some formats like PNG allow for R or RG textures too, so the texture
|
|
// format needs to be determined. For RGB textures an alpha channel
|
|
// needs to be added, so the image data needs to be converted in those
|
|
// cases.
|
|
|
|
match format {
|
|
#[cfg(feature = "basis-universal")]
|
|
ImageFormat::Basis => {
|
|
basis_buffer_to_image(buffer, supported_compressed_formats, is_srgb)
|
|
}
|
|
#[cfg(feature = "dds")]
|
|
ImageFormat::Dds => dds_buffer_to_image(buffer, supported_compressed_formats, is_srgb),
|
|
#[cfg(feature = "ktx2")]
|
|
ImageFormat::Ktx2 => {
|
|
ktx2_buffer_to_image(buffer, supported_compressed_formats, is_srgb)
|
|
}
|
|
_ => {
|
|
let image_crate_format = format
|
|
.as_image_crate_format()
|
|
.ok_or_else(|| TextureError::UnsupportedTextureFormat(format!("{format:?}")))?;
|
|
let mut reader = image::io::Reader::new(std::io::Cursor::new(buffer));
|
|
reader.set_format(image_crate_format);
|
|
reader.no_limits();
|
|
let dyn_img = reader.decode()?;
|
|
Ok(Self::from_dynamic(dyn_img, is_srgb))
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Whether the texture format is compressed or uncompressed
|
|
pub fn is_compressed(&self) -> bool {
|
|
let format_description = self.texture_descriptor.format.describe();
|
|
format_description
|
|
.required_features
|
|
.contains(wgpu::Features::TEXTURE_COMPRESSION_ASTC_LDR)
|
|
|| format_description
|
|
.required_features
|
|
.contains(wgpu::Features::TEXTURE_COMPRESSION_BC)
|
|
|| format_description
|
|
.required_features
|
|
.contains(wgpu::Features::TEXTURE_COMPRESSION_ETC2)
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug)]
|
|
pub enum DataFormat {
|
|
Rgb,
|
|
Rgba,
|
|
Rrr,
|
|
Rrrg,
|
|
Rg,
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug)]
|
|
pub enum TranscodeFormat {
|
|
Etc1s,
|
|
// Has to be transcoded to Rgba8 for use with `wgpu`
|
|
Rgb8,
|
|
Uastc(DataFormat),
|
|
}
|
|
|
|
/// An error that occurs when loading a texture
|
|
#[derive(Error, Debug)]
|
|
pub enum TextureError {
|
|
#[error("invalid image mime type: {0}")]
|
|
InvalidImageMimeType(String),
|
|
#[error("invalid image extension: {0}")]
|
|
InvalidImageExtension(String),
|
|
#[error("failed to load an image: {0}")]
|
|
ImageError(#[from] image::ImageError),
|
|
#[error("unsupported texture format: {0}")]
|
|
UnsupportedTextureFormat(String),
|
|
#[error("supercompression not supported: {0}")]
|
|
SuperCompressionNotSupported(String),
|
|
#[error("failed to load an image: {0}")]
|
|
SuperDecompressionError(String),
|
|
#[error("invalid data: {0}")]
|
|
InvalidData(String),
|
|
#[error("transcode error: {0}")]
|
|
TranscodeError(String),
|
|
#[error("format requires transcoding: {0:?}")]
|
|
FormatRequiresTranscodingError(TranscodeFormat),
|
|
}
|
|
|
|
/// The type of a raw image buffer.
|
|
pub enum ImageType<'a> {
|
|
/// The mime type of an image, for example `"image/png"`.
|
|
MimeType(&'a str),
|
|
/// The extension of an image file, for example `"png"`.
|
|
Extension(&'a str),
|
|
}
|
|
|
|
impl<'a> ImageType<'a> {
|
|
pub fn to_image_format(&self) -> Result<ImageFormat, TextureError> {
|
|
match self {
|
|
ImageType::MimeType(mime_type) => ImageFormat::from_mime_type(mime_type)
|
|
.ok_or_else(|| TextureError::InvalidImageMimeType(mime_type.to_string())),
|
|
ImageType::Extension(extension) => ImageFormat::from_extension(extension)
|
|
.ok_or_else(|| TextureError::InvalidImageExtension(extension.to_string())),
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Used to calculate the volume of an item.
|
|
pub trait Volume {
|
|
fn volume(&self) -> usize;
|
|
}
|
|
|
|
impl Volume for Extent3d {
|
|
/// Calculates the volume of the [`Extent3d`].
|
|
fn volume(&self) -> usize {
|
|
(self.width * self.height * self.depth_or_array_layers) as usize
|
|
}
|
|
}
|
|
|
|
/// Extends the wgpu [`TextureFormat`] with information about the pixel.
|
|
pub trait TextureFormatPixelInfo {
|
|
/// Returns the size of a pixel in bytes of the format.
|
|
fn pixel_size(&self) -> usize;
|
|
}
|
|
|
|
impl TextureFormatPixelInfo for TextureFormat {
|
|
fn pixel_size(&self) -> usize {
|
|
let info = self.describe();
|
|
match info.block_dimensions {
|
|
(1, 1) => info.block_size.into(),
|
|
_ => panic!("Using pixel_size for compressed textures is invalid"),
|
|
}
|
|
}
|
|
}
|
|
|
|
/// The GPU-representation of an [`Image`].
|
|
/// Consists of the [`Texture`], its [`TextureView`] and the corresponding [`Sampler`], and the texture's size.
|
|
#[derive(Debug, Clone)]
|
|
pub struct GpuImage {
|
|
pub texture: Texture,
|
|
pub texture_view: TextureView,
|
|
pub texture_format: TextureFormat,
|
|
pub sampler: Sampler,
|
|
pub size: Vec2,
|
|
}
|
|
|
|
impl RenderAsset for Image {
|
|
type ExtractedAsset = Image;
|
|
type PreparedAsset = GpuImage;
|
|
type Param = (
|
|
SRes<RenderDevice>,
|
|
SRes<RenderQueue>,
|
|
SRes<DefaultImageSampler>,
|
|
);
|
|
|
|
/// Clones the Image.
|
|
fn extract_asset(&self) -> Self::ExtractedAsset {
|
|
self.clone()
|
|
}
|
|
|
|
/// Converts the extracted image into a [`GpuImage`].
|
|
fn prepare_asset(
|
|
image: Self::ExtractedAsset,
|
|
(render_device, render_queue, default_sampler): &mut SystemParamItem<Self::Param>,
|
|
) -> Result<Self::PreparedAsset, PrepareAssetError<Self::ExtractedAsset>> {
|
|
let texture = render_device.create_texture_with_data(
|
|
render_queue,
|
|
&image.texture_descriptor,
|
|
&image.data,
|
|
);
|
|
|
|
let texture_view = texture.create_view(
|
|
image
|
|
.texture_view_descriptor
|
|
.or_else(|| Some(TextureViewDescriptor::default()))
|
|
.as_ref()
|
|
.unwrap(),
|
|
);
|
|
let size = Vec2::new(
|
|
image.texture_descriptor.size.width as f32,
|
|
image.texture_descriptor.size.height as f32,
|
|
);
|
|
let sampler = match image.sampler_descriptor {
|
|
ImageSampler::Default => (***default_sampler).clone(),
|
|
ImageSampler::Descriptor(descriptor) => render_device.create_sampler(&descriptor),
|
|
};
|
|
|
|
Ok(GpuImage {
|
|
texture,
|
|
texture_view,
|
|
texture_format: image.texture_descriptor.format,
|
|
sampler,
|
|
size,
|
|
})
|
|
}
|
|
}
|
|
|
|
bitflags::bitflags! {
|
|
#[derive(Default)]
|
|
#[repr(transparent)]
|
|
pub struct CompressedImageFormats: u32 {
|
|
const NONE = 0;
|
|
const ASTC_LDR = (1 << 0);
|
|
const BC = (1 << 1);
|
|
const ETC2 = (1 << 2);
|
|
}
|
|
}
|
|
|
|
impl CompressedImageFormats {
|
|
pub fn from_features(features: wgpu::Features) -> Self {
|
|
let mut supported_compressed_formats = Self::default();
|
|
if features.contains(wgpu::Features::TEXTURE_COMPRESSION_ASTC_LDR) {
|
|
supported_compressed_formats |= Self::ASTC_LDR;
|
|
}
|
|
if features.contains(wgpu::Features::TEXTURE_COMPRESSION_BC) {
|
|
supported_compressed_formats |= Self::BC;
|
|
}
|
|
if features.contains(wgpu::Features::TEXTURE_COMPRESSION_ETC2) {
|
|
supported_compressed_formats |= Self::ETC2;
|
|
}
|
|
supported_compressed_formats
|
|
}
|
|
|
|
pub fn supports(&self, format: TextureFormat) -> bool {
|
|
match format {
|
|
TextureFormat::Bc1RgbaUnorm
|
|
| TextureFormat::Bc1RgbaUnormSrgb
|
|
| TextureFormat::Bc2RgbaUnorm
|
|
| TextureFormat::Bc2RgbaUnormSrgb
|
|
| TextureFormat::Bc3RgbaUnorm
|
|
| TextureFormat::Bc3RgbaUnormSrgb
|
|
| TextureFormat::Bc4RUnorm
|
|
| TextureFormat::Bc4RSnorm
|
|
| TextureFormat::Bc5RgUnorm
|
|
| TextureFormat::Bc5RgSnorm
|
|
| TextureFormat::Bc6hRgbUfloat
|
|
| TextureFormat::Bc6hRgbSfloat
|
|
| TextureFormat::Bc7RgbaUnorm
|
|
| TextureFormat::Bc7RgbaUnormSrgb => self.contains(CompressedImageFormats::BC),
|
|
TextureFormat::Etc2Rgb8Unorm
|
|
| TextureFormat::Etc2Rgb8UnormSrgb
|
|
| TextureFormat::Etc2Rgb8A1Unorm
|
|
| TextureFormat::Etc2Rgb8A1UnormSrgb
|
|
| TextureFormat::Etc2Rgba8Unorm
|
|
| TextureFormat::Etc2Rgba8UnormSrgb
|
|
| TextureFormat::EacR11Unorm
|
|
| TextureFormat::EacR11Snorm
|
|
| TextureFormat::EacRg11Unorm
|
|
| TextureFormat::EacRg11Snorm => self.contains(CompressedImageFormats::ETC2),
|
|
TextureFormat::Astc { .. } => self.contains(CompressedImageFormats::ASTC_LDR),
|
|
_ => true,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod test {
|
|
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn image_size() {
|
|
let size = Extent3d {
|
|
width: 200,
|
|
height: 100,
|
|
depth_or_array_layers: 1,
|
|
};
|
|
let image = Image::new_fill(
|
|
size,
|
|
TextureDimension::D2,
|
|
&[0, 0, 0, 255],
|
|
TextureFormat::Rgba8Unorm,
|
|
);
|
|
assert_eq!(
|
|
Vec2::new(size.width as f32, size.height as f32),
|
|
image.size()
|
|
);
|
|
}
|
|
#[test]
|
|
fn image_default_size() {
|
|
let image = Image::default();
|
|
assert_eq!(Vec2::ONE, image.size());
|
|
}
|
|
}
|