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default 16bit rgb/rgba textures to unorm instead of uint #9611

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merged 2 commits into from
Sep 6, 2023
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default 16bit rgb/rgba textures to unorm instead of uint #9611

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4e85bcf
rgba16unorm
robtfm Aug 28, 2023
a17af45
i -> image
robtfm Sep 5, 2023
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2 changes: 1 addition & 1 deletion crates/bevy_render/src/texture/dds.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ pub fn dds_format_to_texture_format(
TextureFormat::Bc3RgbaUnorm
}
}
D3DFormat::A16B16G16R16 => TextureFormat::Rgba16Uint,
D3DFormat::A16B16G16R16 => TextureFormat::Rgba16Unorm,
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Checked the microsoft docs and it seems like A16B16G16R16 is an old dx9 format and the dx11 equivalent is DXGI_FORMAT_R16G16B16A16_UNORM, so this seems correct.

D3DFormat::Q16W16V16U16 => TextureFormat::Rgba16Sint,
D3DFormat::R16F => TextureFormat::R16Float,
D3DFormat::G16R16F => TextureFormat::Rg16Float,
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30 changes: 8 additions & 22 deletions crates/bevy_render/src/texture/image_texture_conversion.rs
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Expand Up @@ -79,34 +79,20 @@ impl Image {

data = cast_slice(&raw_data).to_owned();
}
DynamicImage::ImageRgb16(image) => {
width = image.width();
height = image.height();
format = TextureFormat::Rgba16Uint;

let mut local_data =
Vec::with_capacity(width as usize * height as usize * format.pixel_size());

for pixel in image.into_raw().chunks_exact(3) {
// TODO: use the array_chunks method once stabilised
// https://github.com/rust-lang/rust/issues/74985
let r = pixel[0];
let g = pixel[1];
let b = pixel[2];
let a = u16::max_value();
DynamicImage::ImageRgb16(i) => {
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let i = DynamicImage::ImageRgb16(i).into_rgba16();
width = i.width();
height = i.height();
format = TextureFormat::Rgba16Unorm;

local_data.extend_from_slice(&r.to_ne_bytes());
local_data.extend_from_slice(&g.to_ne_bytes());
local_data.extend_from_slice(&b.to_ne_bytes());
local_data.extend_from_slice(&a.to_ne_bytes());
}
let raw_data = i.into_raw();

data = local_data;
data = cast_slice(&raw_data).to_owned();
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Should this potentially be in an unsafe block?

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do you mean make Image::from_dynamic unsafe? i don't think it's necessary, the worst that'll happen is garbage pixeldata in your image.

}
DynamicImage::ImageRgba16(i) => {
width = i.width();
height = i.height();
format = TextureFormat::Rgba16Uint;
format = TextureFormat::Rgba16Unorm;

let raw_data = i.into_raw();

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