Move script gpu files into webgpu folder (#34415)

Signed-off-by: atbrakhi <atbrakhi@igalia.com>

1 files changed, 680 insertions, 0 deletions

diff --git a/components/script/dom/webgpu/gpuconvert.rs b/components/script/dom/webgpu/gpuconvert.rs
new file mode 100644
index 00000000000..db2390a03b0
--- /dev/null
+++ b/components/script/dom/webgpu/gpuconvert.rs
@@ -0,0 +1,680 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use std::borrow::Cow;
+use std::num::NonZeroU64;
+
+use webgpu::wgc::binding_model::{BindGroupEntry, BindingResource, BufferBinding};
+use webgpu::wgc::command as wgpu_com;
+use webgpu::wgc::pipeline::ProgrammableStageDescriptor;
+use webgpu::wgc::resource::TextureDescriptor;
+use webgpu::wgt::{self, AstcBlock, AstcChannel};
+
+use crate::dom::bindings::codegen::Bindings::WebGPUBinding::{
+    GPUAddressMode, GPUBindGroupEntry, GPUBindGroupLayoutEntry, GPUBindingResource,
+    GPUBlendComponent, GPUBlendFactor, GPUBlendOperation, GPUBufferBindingType, GPUColor,
+    GPUCompareFunction, GPUCullMode, GPUExtent3D, GPUFilterMode, GPUFrontFace, GPUImageCopyBuffer,
+    GPUImageCopyTexture, GPUImageDataLayout, GPUIndexFormat, GPULoadOp, GPUObjectDescriptorBase,
+    GPUOrigin3D, GPUPrimitiveState, GPUPrimitiveTopology, GPUProgrammableStage,
+    GPUSamplerBindingType, GPUStencilOperation, GPUStorageTextureAccess, GPUStoreOp,
+    GPUTextureAspect, GPUTextureDescriptor, GPUTextureDimension, GPUTextureFormat,
+    GPUTextureSampleType, GPUTextureViewDimension, GPUVertexFormat,
+};
+use crate::dom::bindings::error::{Error, Fallible};
+use crate::dom::types::GPUDevice;
+
+impl From<GPUTextureFormat> for wgt::TextureFormat {
+    fn from(format: GPUTextureFormat) -> Self {
+        match format {
+            GPUTextureFormat::R8unorm => wgt::TextureFormat::R8Unorm,
+            GPUTextureFormat::R8snorm => wgt::TextureFormat::R8Snorm,
+            GPUTextureFormat::R8uint => wgt::TextureFormat::R8Uint,
+            GPUTextureFormat::R8sint => wgt::TextureFormat::R8Sint,
+            GPUTextureFormat::R16uint => wgt::TextureFormat::R16Uint,
+            GPUTextureFormat::R16sint => wgt::TextureFormat::R16Sint,
+            GPUTextureFormat::R16float => wgt::TextureFormat::R16Float,
+            GPUTextureFormat::Rg8unorm => wgt::TextureFormat::Rg8Unorm,
+            GPUTextureFormat::Rg8snorm => wgt::TextureFormat::Rg8Snorm,
+            GPUTextureFormat::Rg8uint => wgt::TextureFormat::Rg8Uint,
+            GPUTextureFormat::Rg8sint => wgt::TextureFormat::Rg8Sint,
+            GPUTextureFormat::R32uint => wgt::TextureFormat::R32Uint,
+            GPUTextureFormat::R32sint => wgt::TextureFormat::R32Sint,
+            GPUTextureFormat::R32float => wgt::TextureFormat::R32Float,
+            GPUTextureFormat::Rg16uint => wgt::TextureFormat::Rg16Uint,
+            GPUTextureFormat::Rg16sint => wgt::TextureFormat::Rg16Sint,
+            GPUTextureFormat::Rg16float => wgt::TextureFormat::Rg16Float,
+            GPUTextureFormat::Rgba8unorm => wgt::TextureFormat::Rgba8Unorm,
+            GPUTextureFormat::Rgba8unorm_srgb => wgt::TextureFormat::Rgba8UnormSrgb,
+            GPUTextureFormat::Rgba8snorm => wgt::TextureFormat::Rgba8Snorm,
+            GPUTextureFormat::Rgba8uint => wgt::TextureFormat::Rgba8Uint,
+            GPUTextureFormat::Rgba8sint => wgt::TextureFormat::Rgba8Sint,
+            GPUTextureFormat::Bgra8unorm => wgt::TextureFormat::Bgra8Unorm,
+            GPUTextureFormat::Bgra8unorm_srgb => wgt::TextureFormat::Bgra8UnormSrgb,
+            GPUTextureFormat::Rgb10a2unorm => wgt::TextureFormat::Rgb10a2Unorm,
+            GPUTextureFormat::Rg32uint => wgt::TextureFormat::Rg32Uint,
+            GPUTextureFormat::Rg32sint => wgt::TextureFormat::Rg32Sint,
+            GPUTextureFormat::Rg32float => wgt::TextureFormat::Rg32Float,
+            GPUTextureFormat::Rgba16uint => wgt::TextureFormat::Rgba16Uint,
+            GPUTextureFormat::Rgba16sint => wgt::TextureFormat::Rgba16Sint,
+            GPUTextureFormat::Rgba16float => wgt::TextureFormat::Rgba16Float,
+            GPUTextureFormat::Rgba32uint => wgt::TextureFormat::Rgba32Uint,
+            GPUTextureFormat::Rgba32sint => wgt::TextureFormat::Rgba32Sint,
+            GPUTextureFormat::Rgba32float => wgt::TextureFormat::Rgba32Float,
+            GPUTextureFormat::Depth32float => wgt::TextureFormat::Depth32Float,
+            GPUTextureFormat::Depth24plus => wgt::TextureFormat::Depth24Plus,
+            GPUTextureFormat::Depth24plus_stencil8 => wgt::TextureFormat::Depth24PlusStencil8,
+            GPUTextureFormat::Bc1_rgba_unorm => wgt::TextureFormat::Bc1RgbaUnorm,
+            GPUTextureFormat::Bc1_rgba_unorm_srgb => wgt::TextureFormat::Bc1RgbaUnormSrgb,
+            GPUTextureFormat::Bc2_rgba_unorm => wgt::TextureFormat::Bc2RgbaUnorm,
+            GPUTextureFormat::Bc2_rgba_unorm_srgb => wgt::TextureFormat::Bc2RgbaUnormSrgb,
+            GPUTextureFormat::Bc3_rgba_unorm => wgt::TextureFormat::Bc3RgbaUnorm,
+            GPUTextureFormat::Bc3_rgba_unorm_srgb => wgt::TextureFormat::Bc3RgbaUnormSrgb,
+            GPUTextureFormat::Bc4_r_unorm => wgt::TextureFormat::Bc4RUnorm,
+            GPUTextureFormat::Bc4_r_snorm => wgt::TextureFormat::Bc4RSnorm,
+            GPUTextureFormat::Bc5_rg_unorm => wgt::TextureFormat::Bc5RgUnorm,
+            GPUTextureFormat::Bc5_rg_snorm => wgt::TextureFormat::Bc5RgSnorm,
+            GPUTextureFormat::Bc6h_rgb_ufloat => wgt::TextureFormat::Bc6hRgbUfloat,
+            GPUTextureFormat::Bc7_rgba_unorm => wgt::TextureFormat::Bc7RgbaUnorm,
+            GPUTextureFormat::Bc7_rgba_unorm_srgb => wgt::TextureFormat::Bc7RgbaUnormSrgb,
+            GPUTextureFormat::Bc6h_rgb_float => wgt::TextureFormat::Bc6hRgbFloat,
+            GPUTextureFormat::Rgb9e5ufloat => wgt::TextureFormat::Rgb9e5Ufloat,
+            GPUTextureFormat::Rgb10a2uint => wgt::TextureFormat::Rgb10a2Uint,
+            GPUTextureFormat::Rg11b10ufloat => wgt::TextureFormat::Rg11b10Ufloat,
+            GPUTextureFormat::Stencil8 => wgt::TextureFormat::Stencil8,
+            GPUTextureFormat::Depth16unorm => wgt::TextureFormat::Depth16Unorm,
+            GPUTextureFormat::Depth32float_stencil8 => wgt::TextureFormat::Depth32FloatStencil8,
+            GPUTextureFormat::Etc2_rgb8unorm => wgt::TextureFormat::Etc2Rgb8Unorm,
+            GPUTextureFormat::Etc2_rgb8unorm_srgb => wgt::TextureFormat::Etc2Rgb8UnormSrgb,
+            GPUTextureFormat::Etc2_rgb8a1unorm => wgt::TextureFormat::Etc2Rgb8A1Unorm,
+            GPUTextureFormat::Etc2_rgb8a1unorm_srgb => wgt::TextureFormat::Etc2Rgb8A1UnormSrgb,
+            GPUTextureFormat::Etc2_rgba8unorm => wgt::TextureFormat::Etc2Rgba8Unorm,
+            GPUTextureFormat::Etc2_rgba8unorm_srgb => wgt::TextureFormat::Etc2Rgba8UnormSrgb,
+            GPUTextureFormat::Eac_r11unorm => wgt::TextureFormat::EacR11Unorm,
+            GPUTextureFormat::Eac_r11snorm => wgt::TextureFormat::EacR11Snorm,
+            GPUTextureFormat::Eac_rg11unorm => wgt::TextureFormat::EacRg11Unorm,
+            GPUTextureFormat::Eac_rg11snorm => wgt::TextureFormat::EacRg11Snorm,
+            GPUTextureFormat::Astc_4x4_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B4x4,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_4x4_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B4x4,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_5x4_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B5x4,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_5x4_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B5x4,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_5x5_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B5x5,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_5x5_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B5x5,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_6x5_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B6x5,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_6x5_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B6x5,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_6x6_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B6x6,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_6x6_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B6x6,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_8x5_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x5,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_8x5_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x5,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_8x6_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x6,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_8x6_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x6,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_8x8_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x8,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_8x8_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B8x8,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_10x5_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x5,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_10x5_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x5,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_10x6_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x6,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_10x6_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x6,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_10x8_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x8,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_10x8_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x8,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_10x10_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x10,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_10x10_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B10x10,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_12x10_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B12x10,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_12x10_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B12x10,
+                channel: AstcChannel::UnormSrgb,
+            },
+            GPUTextureFormat::Astc_12x12_unorm => wgt::TextureFormat::Astc {
+                block: AstcBlock::B12x12,
+                channel: AstcChannel::Unorm,
+            },
+            GPUTextureFormat::Astc_12x12_unorm_srgb => wgt::TextureFormat::Astc {
+                block: AstcBlock::B12x12,
+                channel: AstcChannel::UnormSrgb,
+            },
+        }
+    }
+}
+
+impl TryFrom<&GPUExtent3D> for wgt::Extent3d {
+    type Error = Error;
+
+    fn try_from(size: &GPUExtent3D) -> Result<Self, Self::Error> {
+        match *size {
+            GPUExtent3D::GPUExtent3DDict(ref dict) => Ok(wgt::Extent3d {
+                width: dict.width,
+                height: dict.height,
+                depth_or_array_layers: dict.depthOrArrayLayers,
+            }),
+            GPUExtent3D::RangeEnforcedUnsignedLongSequence(ref v) => {
+                // https://gpuweb.github.io/gpuweb/#abstract-opdef-validate-gpuextent3d-shape
+                if v.is_empty() || v.len() > 3 {
+                    Err(Error::Type(
+                        "GPUExtent3D size must be between 1 and 3 (inclusive)".to_string(),
+                    ))
+                } else {
+                    Ok(wgt::Extent3d {
+                        width: v[0],
+                        height: v.get(1).copied().unwrap_or(1),
+                        depth_or_array_layers: v.get(2).copied().unwrap_or(1),
+                    })
+                }
+            },
+        }
+    }
+}
+
+impl From<&GPUImageDataLayout> for wgt::ImageDataLayout {
+    fn from(data_layout: &GPUImageDataLayout) -> Self {
+        wgt::ImageDataLayout {
+            offset: data_layout.offset as wgt::BufferAddress,
+            bytes_per_row: data_layout.bytesPerRow,
+            rows_per_image: data_layout.rowsPerImage,
+        }
+    }
+}
+
+impl From<GPUVertexFormat> for wgt::VertexFormat {
+    fn from(format: GPUVertexFormat) -> Self {
+        match format {
+            GPUVertexFormat::Uint8x2 => wgt::VertexFormat::Uint8x2,
+            GPUVertexFormat::Uint8x4 => wgt::VertexFormat::Uint8x4,
+            GPUVertexFormat::Sint8x2 => wgt::VertexFormat::Sint8x2,
+            GPUVertexFormat::Sint8x4 => wgt::VertexFormat::Sint8x4,
+            GPUVertexFormat::Unorm8x2 => wgt::VertexFormat::Unorm8x2,
+            GPUVertexFormat::Unorm8x4 => wgt::VertexFormat::Unorm8x4,
+            GPUVertexFormat::Snorm8x2 => wgt::VertexFormat::Unorm8x2,
+            GPUVertexFormat::Snorm8x4 => wgt::VertexFormat::Unorm8x4,
+            GPUVertexFormat::Uint16x2 => wgt::VertexFormat::Uint16x2,
+            GPUVertexFormat::Uint16x4 => wgt::VertexFormat::Uint16x4,
+            GPUVertexFormat::Sint16x2 => wgt::VertexFormat::Sint16x2,
+            GPUVertexFormat::Sint16x4 => wgt::VertexFormat::Sint16x4,
+            GPUVertexFormat::Unorm16x2 => wgt::VertexFormat::Unorm16x2,
+            GPUVertexFormat::Unorm16x4 => wgt::VertexFormat::Unorm16x4,
+            GPUVertexFormat::Snorm16x2 => wgt::VertexFormat::Snorm16x2,
+            GPUVertexFormat::Snorm16x4 => wgt::VertexFormat::Snorm16x4,
+            GPUVertexFormat::Float16x2 => wgt::VertexFormat::Float16x2,
+            GPUVertexFormat::Float16x4 => wgt::VertexFormat::Float16x4,
+            GPUVertexFormat::Float32 => wgt::VertexFormat::Float32,
+            GPUVertexFormat::Float32x2 => wgt::VertexFormat::Float32x2,
+            GPUVertexFormat::Float32x3 => wgt::VertexFormat::Float32x3,
+            GPUVertexFormat::Float32x4 => wgt::VertexFormat::Float32x4,
+            GPUVertexFormat::Uint32 => wgt::VertexFormat::Uint32,
+            GPUVertexFormat::Uint32x2 => wgt::VertexFormat::Uint32x2,
+            GPUVertexFormat::Uint32x3 => wgt::VertexFormat::Uint32x3,
+            GPUVertexFormat::Uint32x4 => wgt::VertexFormat::Uint32x4,
+            GPUVertexFormat::Sint32 => wgt::VertexFormat::Sint32,
+            GPUVertexFormat::Sint32x2 => wgt::VertexFormat::Sint32x2,
+            GPUVertexFormat::Sint32x3 => wgt::VertexFormat::Sint32x3,
+            GPUVertexFormat::Sint32x4 => wgt::VertexFormat::Sint32x4,
+        }
+    }
+}
+
+impl From<&GPUPrimitiveState> for wgt::PrimitiveState {
+    fn from(primitive_state: &GPUPrimitiveState) -> Self {
+        wgt::PrimitiveState {
+            topology: wgt::PrimitiveTopology::from(&primitive_state.topology),
+            strip_index_format: primitive_state.stripIndexFormat.map(|index_format| {
+                match index_format {
+                    GPUIndexFormat::Uint16 => wgt::IndexFormat::Uint16,
+                    GPUIndexFormat::Uint32 => wgt::IndexFormat::Uint32,
+                }
+            }),
+            front_face: match primitive_state.frontFace {
+                GPUFrontFace::Ccw => wgt::FrontFace::Ccw,
+                GPUFrontFace::Cw => wgt::FrontFace::Cw,
+            },
+            cull_mode: match primitive_state.cullMode {
+                GPUCullMode::None => None,
+                GPUCullMode::Front => Some(wgt::Face::Front),
+                GPUCullMode::Back => Some(wgt::Face::Back),
+            },
+            unclipped_depth: primitive_state.clampDepth,
+            ..Default::default()
+        }
+    }
+}
+
+impl From<&GPUPrimitiveTopology> for wgt::PrimitiveTopology {
+    fn from(primitive_topology: &GPUPrimitiveTopology) -> Self {
+        match primitive_topology {
+            GPUPrimitiveTopology::Point_list => wgt::PrimitiveTopology::PointList,
+            GPUPrimitiveTopology::Line_list => wgt::PrimitiveTopology::LineList,
+            GPUPrimitiveTopology::Line_strip => wgt::PrimitiveTopology::LineStrip,
+            GPUPrimitiveTopology::Triangle_list => wgt::PrimitiveTopology::TriangleList,
+            GPUPrimitiveTopology::Triangle_strip => wgt::PrimitiveTopology::TriangleStrip,
+        }
+    }
+}
+
+impl From<GPUAddressMode> for wgt::AddressMode {
+    fn from(address_mode: GPUAddressMode) -> Self {
+        match address_mode {
+            GPUAddressMode::Clamp_to_edge => wgt::AddressMode::ClampToEdge,
+            GPUAddressMode::Repeat => wgt::AddressMode::Repeat,
+            GPUAddressMode::Mirror_repeat => wgt::AddressMode::MirrorRepeat,
+        }
+    }
+}
+
+impl From<GPUFilterMode> for wgt::FilterMode {
+    fn from(filter_mode: GPUFilterMode) -> Self {
+        match filter_mode {
+            GPUFilterMode::Nearest => wgt::FilterMode::Nearest,
+            GPUFilterMode::Linear => wgt::FilterMode::Linear,
+        }
+    }
+}
+
+impl From<GPUTextureViewDimension> for wgt::TextureViewDimension {
+    fn from(view_dimension: GPUTextureViewDimension) -> Self {
+        match view_dimension {
+            GPUTextureViewDimension::_1d => wgt::TextureViewDimension::D1,
+            GPUTextureViewDimension::_2d => wgt::TextureViewDimension::D2,
+            GPUTextureViewDimension::_2d_array => wgt::TextureViewDimension::D2Array,
+            GPUTextureViewDimension::Cube => wgt::TextureViewDimension::Cube,
+            GPUTextureViewDimension::Cube_array => wgt::TextureViewDimension::CubeArray,
+            GPUTextureViewDimension::_3d => wgt::TextureViewDimension::D3,
+        }
+    }
+}
+
+impl From<GPUCompareFunction> for wgt::CompareFunction {
+    fn from(compare: GPUCompareFunction) -> Self {
+        match compare {
+            GPUCompareFunction::Never => wgt::CompareFunction::Never,
+            GPUCompareFunction::Less => wgt::CompareFunction::Less,
+            GPUCompareFunction::Equal => wgt::CompareFunction::Equal,
+            GPUCompareFunction::Less_equal => wgt::CompareFunction::LessEqual,
+            GPUCompareFunction::Greater => wgt::CompareFunction::Greater,
+            GPUCompareFunction::Not_equal => wgt::CompareFunction::NotEqual,
+            GPUCompareFunction::Greater_equal => wgt::CompareFunction::GreaterEqual,
+            GPUCompareFunction::Always => wgt::CompareFunction::Always,
+        }
+    }
+}
+
+impl From<&GPUBlendFactor> for wgt::BlendFactor {
+    fn from(factor: &GPUBlendFactor) -> Self {
+        match factor {
+            GPUBlendFactor::Zero => wgt::BlendFactor::Zero,
+            GPUBlendFactor::One => wgt::BlendFactor::One,
+            GPUBlendFactor::Src => wgt::BlendFactor::Src,
+            GPUBlendFactor::One_minus_src => wgt::BlendFactor::OneMinusSrc,
+            GPUBlendFactor::Src_alpha => wgt::BlendFactor::SrcAlpha,
+            GPUBlendFactor::One_minus_src_alpha => wgt::BlendFactor::OneMinusSrcAlpha,
+            GPUBlendFactor::Dst => wgt::BlendFactor::Dst,
+            GPUBlendFactor::One_minus_dst => wgt::BlendFactor::OneMinusDst,
+            GPUBlendFactor::Dst_alpha => wgt::BlendFactor::DstAlpha,
+            GPUBlendFactor::One_minus_dst_alpha => wgt::BlendFactor::OneMinusDstAlpha,
+            GPUBlendFactor::Src_alpha_saturated => wgt::BlendFactor::SrcAlphaSaturated,
+            GPUBlendFactor::Constant => wgt::BlendFactor::Constant,
+            GPUBlendFactor::One_minus_constant => wgt::BlendFactor::OneMinusConstant,
+        }
+    }
+}
+
+impl From<&GPUBlendComponent> for wgt::BlendComponent {
+    fn from(blend_component: &GPUBlendComponent) -> Self {
+        wgt::BlendComponent {
+            src_factor: wgt::BlendFactor::from(&blend_component.srcFactor),
+            dst_factor: wgt::BlendFactor::from(&blend_component.dstFactor),
+            operation: match blend_component.operation {
+                GPUBlendOperation::Add => wgt::BlendOperation::Add,
+                GPUBlendOperation::Subtract => wgt::BlendOperation::Subtract,
+                GPUBlendOperation::Reverse_subtract => wgt::BlendOperation::ReverseSubtract,
+                GPUBlendOperation::Min => wgt::BlendOperation::Min,
+                GPUBlendOperation::Max => wgt::BlendOperation::Max,
+            },
+        }
+    }
+}
+
+pub fn convert_load_op(op: Option<GPULoadOp>) -> wgpu_com::LoadOp {
+    match op {
+        Some(GPULoadOp::Load) => wgpu_com::LoadOp::Load,
+        Some(GPULoadOp::Clear) => wgpu_com::LoadOp::Clear,
+        None => wgpu_com::LoadOp::Clear,
+    }
+}
+
+pub fn convert_store_op(op: Option<GPUStoreOp>) -> wgpu_com::StoreOp {
+    match op {
+        Some(GPUStoreOp::Store) => wgpu_com::StoreOp::Store,
+        Some(GPUStoreOp::Discard) => wgpu_com::StoreOp::Discard,
+        None => wgpu_com::StoreOp::Discard,
+    }
+}
+
+impl From<GPUStencilOperation> for wgt::StencilOperation {
+    fn from(operation: GPUStencilOperation) -> Self {
+        match operation {
+            GPUStencilOperation::Keep => wgt::StencilOperation::Keep,
+            GPUStencilOperation::Zero => wgt::StencilOperation::Zero,
+            GPUStencilOperation::Replace => wgt::StencilOperation::Replace,
+            GPUStencilOperation::Invert => wgt::StencilOperation::Invert,
+            GPUStencilOperation::Increment_clamp => wgt::StencilOperation::IncrementClamp,
+            GPUStencilOperation::Decrement_clamp => wgt::StencilOperation::DecrementClamp,
+            GPUStencilOperation::Increment_wrap => wgt::StencilOperation::IncrementWrap,
+            GPUStencilOperation::Decrement_wrap => wgt::StencilOperation::DecrementWrap,
+        }
+    }
+}
+
+impl From<&GPUImageCopyBuffer> for wgpu_com::ImageCopyBuffer {
+    fn from(ic_buffer: &GPUImageCopyBuffer) -> Self {
+        wgpu_com::ImageCopyBuffer {
+            buffer: ic_buffer.buffer.id().0,
+            layout: wgt::ImageDataLayout::from(&ic_buffer.parent),
+        }
+    }
+}
+
+impl TryFrom<&GPUOrigin3D> for wgt::Origin3d {
+    type Error = Error;
+
+    fn try_from(origin: &GPUOrigin3D) -> Result<Self, Self::Error> {
+        match origin {
+            GPUOrigin3D::RangeEnforcedUnsignedLongSequence(v) => {
+                // https://gpuweb.github.io/gpuweb/#abstract-opdef-validate-gpuorigin3d-shape
+                if v.len() > 3 {
+                    Err(Error::Type(
+                        "sequence is too long for GPUOrigin3D".to_string(),
+                    ))
+                } else {
+                    Ok(wgt::Origin3d {
+                        x: v.first().copied().unwrap_or(0),
+                        y: v.get(1).copied().unwrap_or(0),
+                        z: v.get(2).copied().unwrap_or(0),
+                    })
+                }
+            },
+            GPUOrigin3D::GPUOrigin3DDict(d) => Ok(wgt::Origin3d {
+                x: d.x,
+                y: d.y,
+                z: d.z,
+            }),
+        }
+    }
+}
+
+impl TryFrom<&GPUImageCopyTexture> for wgpu_com::ImageCopyTexture {
+    type Error = Error;
+
+    fn try_from(ic_texture: &GPUImageCopyTexture) -> Result<Self, Self::Error> {
+        Ok(wgpu_com::ImageCopyTexture {
+            texture: ic_texture.texture.id().0,
+            mip_level: ic_texture.mipLevel,
+            origin: ic_texture
+                .origin
+                .as_ref()
+                .map(wgt::Origin3d::try_from)
+                .transpose()?
+                .unwrap_or_default(),
+            aspect: match ic_texture.aspect {
+                GPUTextureAspect::All => wgt::TextureAspect::All,
+                GPUTextureAspect::Stencil_only => wgt::TextureAspect::StencilOnly,
+                GPUTextureAspect::Depth_only => wgt::TextureAspect::DepthOnly,
+            },
+        })
+    }
+}
+
+impl<'a> From<&GPUObjectDescriptorBase> for Option<Cow<'a, str>> {
+    fn from(val: &GPUObjectDescriptorBase) -> Self {
+        if val.label.is_empty() {
+            None
+        } else {
+            Some(Cow::Owned(val.label.to_string()))
+        }
+    }
+}
+
+pub fn convert_bind_group_layout_entry(
+    bgle: &GPUBindGroupLayoutEntry,
+    device: &GPUDevice,
+) -> Fallible<Result<wgt::BindGroupLayoutEntry, webgpu::Error>> {
+    let number_of_provided_bindings = bgle.buffer.is_some() as u8 +
+        bgle.sampler.is_some() as u8 +
+        bgle.storageTexture.is_some() as u8 +
+        bgle.texture.is_some() as u8;
+    let ty = if let Some(buffer) = &bgle.buffer {
+        Some(wgt::BindingType::Buffer {
+            ty: match buffer.type_ {
+                GPUBufferBindingType::Uniform => wgt::BufferBindingType::Uniform,
+                GPUBufferBindingType::Storage => {
+                    wgt::BufferBindingType::Storage { read_only: false }
+                },
+                GPUBufferBindingType::Read_only_storage => {
+                    wgt::BufferBindingType::Storage { read_only: true }
+                },
+            },
+            has_dynamic_offset: buffer.hasDynamicOffset,
+            min_binding_size: NonZeroU64::new(buffer.minBindingSize),
+        })
+    } else if let Some(sampler) = &bgle.sampler {
+        Some(wgt::BindingType::Sampler(match sampler.type_ {
+            GPUSamplerBindingType::Filtering => wgt::SamplerBindingType::Filtering,
+            GPUSamplerBindingType::Non_filtering => wgt::SamplerBindingType::NonFiltering,
+            GPUSamplerBindingType::Comparison => wgt::SamplerBindingType::Comparison,
+        }))
+    } else if let Some(storage) = &bgle.storageTexture {
+        Some(wgt::BindingType::StorageTexture {
+            access: match storage.access {
+                GPUStorageTextureAccess::Write_only => wgt::StorageTextureAccess::WriteOnly,
+                GPUStorageTextureAccess::Read_only => wgt::StorageTextureAccess::ReadOnly,
+                GPUStorageTextureAccess::Read_write => wgt::StorageTextureAccess::ReadWrite,
+            },
+            format: device.validate_texture_format_required_features(&storage.format)?,
+            view_dimension: storage.viewDimension.into(),
+        })
+    } else if let Some(texture) = &bgle.texture {
+        Some(wgt::BindingType::Texture {
+            sample_type: match texture.sampleType {
+                GPUTextureSampleType::Float => wgt::TextureSampleType::Float { filterable: true },
+                GPUTextureSampleType::Unfilterable_float => {
+                    wgt::TextureSampleType::Float { filterable: false }
+                },
+                GPUTextureSampleType::Depth => wgt::TextureSampleType::Depth,
+                GPUTextureSampleType::Sint => wgt::TextureSampleType::Sint,
+                GPUTextureSampleType::Uint => wgt::TextureSampleType::Uint,
+            },
+            view_dimension: texture.viewDimension.into(),
+            multisampled: texture.multisampled,
+        })
+    } else {
+        assert_eq!(number_of_provided_bindings, 0);
+        None
+    };
+    // Check for number of bindings should actually be done in device-timeline,
+    // but we do it last on content-timeline to have some visible effect
+    let ty = if number_of_provided_bindings != 1 {
+        None
+    } else {
+        ty
+    }
+    .ok_or(webgpu::Error::Validation(
+        "Exactly on entry type must be provided".to_string(),
+    ));
+
+    Ok(ty.map(|ty| wgt::BindGroupLayoutEntry {
+        binding: bgle.binding,
+        visibility: wgt::ShaderStages::from_bits_retain(bgle.visibility),
+        ty,
+        count: None,
+    }))
+}
+
+pub fn convert_texture_descriptor(
+    descriptor: &GPUTextureDescriptor,
+    device: &GPUDevice,
+) -> Fallible<(TextureDescriptor<'static>, wgt::Extent3d)> {
+    let size = (&descriptor.size).try_into()?;
+    let desc = TextureDescriptor {
+        label: (&descriptor.parent).into(),
+        size,
+        mip_level_count: descriptor.mipLevelCount,
+        sample_count: descriptor.sampleCount,
+        dimension: descriptor.dimension.into(),
+        format: device.validate_texture_format_required_features(&descriptor.format)?,
+        usage: wgt::TextureUsages::from_bits_retain(descriptor.usage),
+        view_formats: descriptor
+            .viewFormats
+            .iter()
+            .map(|tf| device.validate_texture_format_required_features(tf))
+            .collect::<Fallible<_>>()?,
+    };
+    Ok((desc, size))
+}
+
+impl TryFrom<&GPUColor> for wgt::Color {
+    type Error = Error;
+
+    fn try_from(color: &GPUColor) -> Result<Self, Self::Error> {
+        match color {
+            GPUColor::DoubleSequence(s) => {
+                // https://gpuweb.github.io/gpuweb/#abstract-opdef-validate-gpucolor-shape
+                if s.len() != 4 {
+                    Err(Error::Type("GPUColor sequence must be len 4".to_string()))
+                } else {
+                    Ok(wgt::Color {
+                        r: *s[0],
+                        g: *s[1],
+                        b: *s[2],
+                        a: *s[3],
+                    })
+                }
+            },
+            GPUColor::GPUColorDict(d) => Ok(wgt::Color {
+                r: *d.r,
+                g: *d.g,
+                b: *d.b,
+                a: *d.a,
+            }),
+        }
+    }
+}
+
+impl<'a> From<&GPUProgrammableStage> for ProgrammableStageDescriptor<'a> {
+    fn from(stage: &GPUProgrammableStage) -> Self {
+        Self {
+            module: stage.module.id().0,
+            entry_point: stage
+                .entryPoint
+                .as_ref()
+                .map(|ep| Cow::Owned(ep.to_string())),
+            constants: Cow::Owned(
+                stage
+                    .constants
+                    .as_ref()
+                    .map(|records| records.iter().map(|(k, v)| (k.0.clone(), **v)).collect())
+                    .unwrap_or_default(),
+            ),
+            zero_initialize_workgroup_memory: true,
+        }
+    }
+}
+
+impl From<&GPUBindGroupEntry> for BindGroupEntry<'_> {
+    fn from(entry: &GPUBindGroupEntry) -> Self {
+        Self {
+            binding: entry.binding,
+            resource: match entry.resource {
+                GPUBindingResource::GPUSampler(ref s) => BindingResource::Sampler(s.id().0),
+                GPUBindingResource::GPUTextureView(ref t) => BindingResource::TextureView(t.id().0),
+                GPUBindingResource::GPUBufferBinding(ref b) => {
+                    BindingResource::Buffer(BufferBinding {
+                        buffer_id: b.buffer.id().0,
+                        offset: b.offset,
+                        size: b.size.and_then(wgt::BufferSize::new),
+                    })
+                },
+            },
+        }
+    }
+}
+
+impl From<GPUTextureDimension> for wgt::TextureDimension {
+    fn from(dimension: GPUTextureDimension) -> Self {
+        match dimension {
+            GPUTextureDimension::_1d => wgt::TextureDimension::D1,
+            GPUTextureDimension::_2d => wgt::TextureDimension::D2,
+            GPUTextureDimension::_3d => wgt::TextureDimension::D3,
+        }
+    }
+}