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Update target_pixel_byte_cost and target_component_alignment #5934

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Jul 10, 2024
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Update target_pixel_byte_cost and target_component_alignment #5934

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87 changes: 82 additions & 5 deletions wgpu-types/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3655,27 +3655,35 @@ impl TextureFormat {
/// <https://gpuweb.github.io/gpuweb/#render-target-pixel-byte-cost>
pub fn target_pixel_byte_cost(&self) -> Option<u32> {
match *self {
Self::R8Unorm | Self::R8Uint | Self::R8Sint => Some(1),
Self::R8Unorm | Self::R8Snorm | Self::R8Uint | Self::R8Sint => Some(1),
Self::Rg8Unorm
| Self::Rg8Snorm
| Self::Rg8Uint
| Self::Rg8Sint
| Self::R16Uint
| Self::R16Sint
| Self::R16Unorm
| Self::R16Snorm
| Self::R16Float => Some(2),
Self::Rgba8Uint
| Self::Rgba8Sint
| Self::Rg16Uint
| Self::Rg16Sint
| Self::Rg16Unorm
| Self::Rg16Snorm
| Self::Rg16Float
| Self::R32Uint
| Self::R32Sint
| Self::R32Float => Some(4),
Self::Rgba8Unorm
| Self::Rgba8UnormSrgb
| Self::Rgba8Snorm
| Self::Bgra8Unorm
| Self::Bgra8UnormSrgb
| Self::Rgba16Uint
| Self::Rgba16Sint
| Self::Rgba16Unorm
| Self::Rgba16Snorm
| Self::Rgba16Float
| Self::Rg32Uint
| Self::Rg32Sint
Expand All @@ -3684,14 +3692,45 @@ impl TextureFormat {
| Self::Rgb10a2Unorm
| Self::Rg11b10Float => Some(8),
Self::Rgba32Uint | Self::Rgba32Sint | Self::Rgba32Float => Some(16),
Self::Rgba8Snorm | Self::Rg8Snorm | Self::R8Snorm => None,
_ => None,
Self::Stencil8
| Self::Depth16Unorm
| Self::Depth24Plus
| Self::Depth24PlusStencil8
| Self::Depth32Float
| Self::Depth32FloatStencil8
| Self::NV12
| Self::Rgb9e5Ufloat
| Self::Bc1RgbaUnorm
| Self::Bc1RgbaUnormSrgb
| Self::Bc2RgbaUnorm
| Self::Bc2RgbaUnormSrgb
| Self::Bc3RgbaUnorm
| Self::Bc3RgbaUnormSrgb
| Self::Bc4RUnorm
| Self::Bc4RSnorm
| Self::Bc5RgUnorm
| Self::Bc5RgSnorm
| Self::Bc6hRgbUfloat
| Self::Bc6hRgbFloat
| Self::Bc7RgbaUnorm
| Self::Bc7RgbaUnormSrgb
| Self::Etc2Rgb8Unorm
| Self::Etc2Rgb8UnormSrgb
| Self::Etc2Rgb8A1Unorm
| Self::Etc2Rgb8A1UnormSrgb
| Self::Etc2Rgba8Unorm
| Self::Etc2Rgba8UnormSrgb
| Self::EacR11Unorm
| Self::EacR11Snorm
| Self::EacRg11Unorm
| Self::EacRg11Snorm
| Self::Astc { .. } => None,
}
}

/// See <https://gpuweb.github.io/gpuweb/#render-target-component-alignment>
pub fn target_component_alignment(&self) -> Option<u32> {
match self {
match *self {
Self::R8Unorm
| Self::R8Snorm
| Self::R8Uint
Expand All @@ -3709,12 +3748,18 @@ impl TextureFormat {
| Self::Bgra8UnormSrgb => Some(1),
Self::R16Uint
| Self::R16Sint
| Self::R16Unorm
| Self::R16Snorm
| Self::R16Float
| Self::Rg16Uint
| Self::Rg16Sint
| Self::Rg16Unorm
| Self::Rg16Snorm
| Self::Rg16Float
| Self::Rgba16Uint
| Self::Rgba16Sint
| Self::Rgba16Unorm
| Self::Rgba16Snorm
| Self::Rgba16Float => Some(2),
Self::R32Uint
| Self::R32Sint
Expand All @@ -3728,7 +3773,39 @@ impl TextureFormat {
| Self::Rgb10a2Uint
| Self::Rgb10a2Unorm
| Self::Rg11b10Float => Some(4),
_ => None,
Self::Stencil8
| Self::Depth16Unorm
| Self::Depth24Plus
| Self::Depth24PlusStencil8
| Self::Depth32Float
| Self::Depth32FloatStencil8
| Self::NV12
| Self::Rgb9e5Ufloat
| Self::Bc1RgbaUnorm
| Self::Bc1RgbaUnormSrgb
| Self::Bc2RgbaUnorm
| Self::Bc2RgbaUnormSrgb
| Self::Bc3RgbaUnorm
| Self::Bc3RgbaUnormSrgb
| Self::Bc4RUnorm
| Self::Bc4RSnorm
| Self::Bc5RgUnorm
| Self::Bc5RgSnorm
| Self::Bc6hRgbUfloat
| Self::Bc6hRgbFloat
| Self::Bc7RgbaUnorm
| Self::Bc7RgbaUnormSrgb
| Self::Etc2Rgb8Unorm
| Self::Etc2Rgb8UnormSrgb
| Self::Etc2Rgb8A1Unorm
| Self::Etc2Rgb8A1UnormSrgb
| Self::Etc2Rgba8Unorm
| Self::Etc2Rgba8UnormSrgb
| Self::EacR11Unorm
| Self::EacR11Snorm
| Self::EacRg11Unorm
| Self::EacRg11Snorm
| Self::Astc { .. } => None,
}
}

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