diff options
Diffstat (limited to 'third_party/rust/wgpu-hal/src/auxil/dxgi/conv.rs')
| -rw-r--r-- | third_party/rust/wgpu-hal/src/auxil/dxgi/conv.rs | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/third_party/rust/wgpu-hal/src/auxil/dxgi/conv.rs b/third_party/rust/wgpu-hal/src/auxil/dxgi/conv.rs new file mode 100644 index 0000000000..0456cd719b --- /dev/null +++ b/third_party/rust/wgpu-hal/src/auxil/dxgi/conv.rs @@ -0,0 +1,258 @@ +use winapi::shared::dxgiformat; + +pub fn map_texture_format_failable(format: wgt::TextureFormat) -> Option<dxgiformat::DXGI_FORMAT> { + use wgt::TextureFormat as Tf; + use winapi::shared::dxgiformat::*; + + Some(match format { + Tf::R8Unorm => DXGI_FORMAT_R8_UNORM, + Tf::R8Snorm => DXGI_FORMAT_R8_SNORM, + Tf::R8Uint => DXGI_FORMAT_R8_UINT, + Tf::R8Sint => DXGI_FORMAT_R8_SINT, + Tf::R16Uint => DXGI_FORMAT_R16_UINT, + Tf::R16Sint => DXGI_FORMAT_R16_SINT, + Tf::R16Unorm => DXGI_FORMAT_R16_UNORM, + Tf::R16Snorm => DXGI_FORMAT_R16_SNORM, + Tf::R16Float => DXGI_FORMAT_R16_FLOAT, + Tf::Rg8Unorm => DXGI_FORMAT_R8G8_UNORM, + Tf::Rg8Snorm => DXGI_FORMAT_R8G8_SNORM, + Tf::Rg8Uint => DXGI_FORMAT_R8G8_UINT, + Tf::Rg8Sint => DXGI_FORMAT_R8G8_SINT, + Tf::Rg16Unorm => DXGI_FORMAT_R16G16_UNORM, + Tf::Rg16Snorm => DXGI_FORMAT_R16G16_SNORM, + Tf::R32Uint => DXGI_FORMAT_R32_UINT, + Tf::R32Sint => DXGI_FORMAT_R32_SINT, + Tf::R32Float => DXGI_FORMAT_R32_FLOAT, + Tf::Rg16Uint => DXGI_FORMAT_R16G16_UINT, + Tf::Rg16Sint => DXGI_FORMAT_R16G16_SINT, + Tf::Rg16Float => DXGI_FORMAT_R16G16_FLOAT, + Tf::Rgba8Unorm => DXGI_FORMAT_R8G8B8A8_UNORM, + Tf::Rgba8UnormSrgb => DXGI_FORMAT_R8G8B8A8_UNORM_SRGB, + Tf::Bgra8UnormSrgb => DXGI_FORMAT_B8G8R8A8_UNORM_SRGB, + Tf::Rgba8Snorm => DXGI_FORMAT_R8G8B8A8_SNORM, + Tf::Bgra8Unorm => DXGI_FORMAT_B8G8R8A8_UNORM, + Tf::Rgba8Uint => DXGI_FORMAT_R8G8B8A8_UINT, + Tf::Rgba8Sint => DXGI_FORMAT_R8G8B8A8_SINT, + Tf::Rgb9e5Ufloat => DXGI_FORMAT_R9G9B9E5_SHAREDEXP, + Tf::Rgb10a2Unorm => DXGI_FORMAT_R10G10B10A2_UNORM, + Tf::Rg11b10Float => DXGI_FORMAT_R11G11B10_FLOAT, + Tf::Rg32Uint => DXGI_FORMAT_R32G32_UINT, + Tf::Rg32Sint => DXGI_FORMAT_R32G32_SINT, + Tf::Rg32Float => DXGI_FORMAT_R32G32_FLOAT, + Tf::Rgba16Uint => DXGI_FORMAT_R16G16B16A16_UINT, + Tf::Rgba16Sint => DXGI_FORMAT_R16G16B16A16_SINT, + Tf::Rgba16Unorm => DXGI_FORMAT_R16G16B16A16_UNORM, + Tf::Rgba16Snorm => DXGI_FORMAT_R16G16B16A16_SNORM, + Tf::Rgba16Float => DXGI_FORMAT_R16G16B16A16_FLOAT, + Tf::Rgba32Uint => DXGI_FORMAT_R32G32B32A32_UINT, + Tf::Rgba32Sint => DXGI_FORMAT_R32G32B32A32_SINT, + Tf::Rgba32Float => DXGI_FORMAT_R32G32B32A32_FLOAT, + Tf::Stencil8 => DXGI_FORMAT_D24_UNORM_S8_UINT, + Tf::Depth16Unorm => DXGI_FORMAT_D16_UNORM, + Tf::Depth24Plus => DXGI_FORMAT_D24_UNORM_S8_UINT, + Tf::Depth24PlusStencil8 => DXGI_FORMAT_D24_UNORM_S8_UINT, + Tf::Depth32Float => DXGI_FORMAT_D32_FLOAT, + Tf::Depth32FloatStencil8 => DXGI_FORMAT_D32_FLOAT_S8X24_UINT, + Tf::Bc1RgbaUnorm => DXGI_FORMAT_BC1_UNORM, + Tf::Bc1RgbaUnormSrgb => DXGI_FORMAT_BC1_UNORM_SRGB, + Tf::Bc2RgbaUnorm => DXGI_FORMAT_BC2_UNORM, + Tf::Bc2RgbaUnormSrgb => DXGI_FORMAT_BC2_UNORM_SRGB, + Tf::Bc3RgbaUnorm => DXGI_FORMAT_BC3_UNORM, + Tf::Bc3RgbaUnormSrgb => DXGI_FORMAT_BC3_UNORM_SRGB, + Tf::Bc4RUnorm => DXGI_FORMAT_BC4_UNORM, + Tf::Bc4RSnorm => DXGI_FORMAT_BC4_SNORM, + Tf::Bc5RgUnorm => DXGI_FORMAT_BC5_UNORM, + Tf::Bc5RgSnorm => DXGI_FORMAT_BC5_SNORM, + Tf::Bc6hRgbUfloat => DXGI_FORMAT_BC6H_UF16, + Tf::Bc6hRgbFloat => DXGI_FORMAT_BC6H_SF16, + Tf::Bc7RgbaUnorm => DXGI_FORMAT_BC7_UNORM, + Tf::Bc7RgbaUnormSrgb => DXGI_FORMAT_BC7_UNORM_SRGB, + Tf::Etc2Rgb8Unorm + | Tf::Etc2Rgb8UnormSrgb + | Tf::Etc2Rgb8A1Unorm + | Tf::Etc2Rgb8A1UnormSrgb + | Tf::Etc2Rgba8Unorm + | Tf::Etc2Rgba8UnormSrgb + | Tf::EacR11Unorm + | Tf::EacR11Snorm + | Tf::EacRg11Unorm + | Tf::EacRg11Snorm + | Tf::Astc { + block: _, + channel: _, + } => return None, + }) +} + +pub fn map_texture_format(format: wgt::TextureFormat) -> dxgiformat::DXGI_FORMAT { + match map_texture_format_failable(format) { + Some(f) => f, + None => unreachable!(), + } +} + +// Note: DXGI doesn't allow sRGB format on the swapchain, +// but creating RTV of swapchain buffers with sRGB works. +pub fn map_texture_format_nosrgb(format: wgt::TextureFormat) -> dxgiformat::DXGI_FORMAT { + match format { + wgt::TextureFormat::Bgra8UnormSrgb => dxgiformat::DXGI_FORMAT_B8G8R8A8_UNORM, + wgt::TextureFormat::Rgba8UnormSrgb => dxgiformat::DXGI_FORMAT_R8G8B8A8_UNORM, + _ => map_texture_format(format), + } +} + +// SRV and UAV can't use the depth or typeless formats +// see https://microsoft.github.io/DirectX-Specs/d3d/PlanarDepthStencilDDISpec.html#view-creation +pub fn map_texture_format_for_srv_uav( + format: wgt::TextureFormat, + aspect: crate::FormatAspects, +) -> Option<dxgiformat::DXGI_FORMAT> { + Some(match (format, aspect) { + (wgt::TextureFormat::Depth16Unorm, crate::FormatAspects::DEPTH) => { + dxgiformat::DXGI_FORMAT_R16_UNORM + } + (wgt::TextureFormat::Depth32Float, crate::FormatAspects::DEPTH) => { + dxgiformat::DXGI_FORMAT_R32_FLOAT + } + (wgt::TextureFormat::Depth32FloatStencil8, crate::FormatAspects::DEPTH) => { + dxgiformat::DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS + } + ( + wgt::TextureFormat::Depth24Plus | wgt::TextureFormat::Depth24PlusStencil8, + crate::FormatAspects::DEPTH, + ) => dxgiformat::DXGI_FORMAT_R24_UNORM_X8_TYPELESS, + + (wgt::TextureFormat::Depth32FloatStencil8, crate::FormatAspects::STENCIL) => { + dxgiformat::DXGI_FORMAT_X32_TYPELESS_G8X24_UINT + } + ( + wgt::TextureFormat::Stencil8 | wgt::TextureFormat::Depth24PlusStencil8, + crate::FormatAspects::STENCIL, + ) => dxgiformat::DXGI_FORMAT_X24_TYPELESS_G8_UINT, + + (format, crate::FormatAspects::COLOR) => map_texture_format(format), + + _ => return None, + }) +} + +// see https://microsoft.github.io/DirectX-Specs/d3d/PlanarDepthStencilDDISpec.html#planar-layout-for-staging-from-buffer +pub fn map_texture_format_for_copy( + format: wgt::TextureFormat, + aspect: crate::FormatAspects, +) -> Option<dxgiformat::DXGI_FORMAT> { + Some(match (format, aspect) { + (wgt::TextureFormat::Depth16Unorm, crate::FormatAspects::DEPTH) => { + dxgiformat::DXGI_FORMAT_R16_UNORM + } + ( + wgt::TextureFormat::Depth32Float | wgt::TextureFormat::Depth32FloatStencil8, + crate::FormatAspects::DEPTH, + ) => dxgiformat::DXGI_FORMAT_R32_FLOAT, + + ( + wgt::TextureFormat::Stencil8 + | wgt::TextureFormat::Depth24PlusStencil8 + | wgt::TextureFormat::Depth32FloatStencil8, + crate::FormatAspects::STENCIL, + ) => dxgiformat::DXGI_FORMAT_R8_UINT, + + (format, crate::FormatAspects::COLOR) => map_texture_format(format), + + _ => return None, + }) +} + +pub fn map_texture_format_for_resource( + format: wgt::TextureFormat, + usage: crate::TextureUses, + has_view_formats: bool, + casting_fully_typed_format_supported: bool, +) -> dxgiformat::DXGI_FORMAT { + use wgt::TextureFormat as Tf; + use winapi::shared::dxgiformat::*; + + if casting_fully_typed_format_supported { + map_texture_format(format) + + // We might view this resource as srgb or non-srgb + } else if has_view_formats { + match format { + Tf::Rgba8Unorm | Tf::Rgba8UnormSrgb => DXGI_FORMAT_R8G8B8A8_TYPELESS, + Tf::Bgra8Unorm | Tf::Bgra8UnormSrgb => DXGI_FORMAT_B8G8R8A8_TYPELESS, + Tf::Bc1RgbaUnorm | Tf::Bc1RgbaUnormSrgb => DXGI_FORMAT_BC1_TYPELESS, + Tf::Bc2RgbaUnorm | Tf::Bc2RgbaUnormSrgb => DXGI_FORMAT_BC2_TYPELESS, + Tf::Bc3RgbaUnorm | Tf::Bc3RgbaUnormSrgb => DXGI_FORMAT_BC3_TYPELESS, + Tf::Bc7RgbaUnorm | Tf::Bc7RgbaUnormSrgb => DXGI_FORMAT_BC7_TYPELESS, + format => map_texture_format(format), + } + + // We might view this resource as SRV/UAV but also as DSV + } else if format.is_depth_stencil_format() + && usage.intersects( + crate::TextureUses::RESOURCE + | crate::TextureUses::STORAGE_READ + | crate::TextureUses::STORAGE_READ_WRITE, + ) + { + match format { + Tf::Depth16Unorm => DXGI_FORMAT_R16_TYPELESS, + Tf::Depth32Float => DXGI_FORMAT_R32_TYPELESS, + Tf::Depth32FloatStencil8 => DXGI_FORMAT_R32G8X24_TYPELESS, + Tf::Stencil8 | Tf::Depth24Plus | Tf::Depth24PlusStencil8 => DXGI_FORMAT_R24G8_TYPELESS, + _ => unreachable!(), + } + } else { + map_texture_format(format) + } +} + +pub fn map_index_format(format: wgt::IndexFormat) -> dxgiformat::DXGI_FORMAT { + match format { + wgt::IndexFormat::Uint16 => dxgiformat::DXGI_FORMAT_R16_UINT, + wgt::IndexFormat::Uint32 => dxgiformat::DXGI_FORMAT_R32_UINT, + } +} + +pub fn map_vertex_format(format: wgt::VertexFormat) -> dxgiformat::DXGI_FORMAT { + use wgt::VertexFormat as Vf; + use winapi::shared::dxgiformat::*; + + match format { + Vf::Unorm8x2 => DXGI_FORMAT_R8G8_UNORM, + Vf::Snorm8x2 => DXGI_FORMAT_R8G8_SNORM, + Vf::Uint8x2 => DXGI_FORMAT_R8G8_UINT, + Vf::Sint8x2 => DXGI_FORMAT_R8G8_SINT, + Vf::Unorm8x4 => DXGI_FORMAT_R8G8B8A8_UNORM, + Vf::Snorm8x4 => DXGI_FORMAT_R8G8B8A8_SNORM, + Vf::Uint8x4 => DXGI_FORMAT_R8G8B8A8_UINT, + Vf::Sint8x4 => DXGI_FORMAT_R8G8B8A8_SINT, + Vf::Unorm16x2 => DXGI_FORMAT_R16G16_UNORM, + Vf::Snorm16x2 => DXGI_FORMAT_R16G16_SNORM, + Vf::Uint16x2 => DXGI_FORMAT_R16G16_UINT, + Vf::Sint16x2 => DXGI_FORMAT_R16G16_SINT, + Vf::Float16x2 => DXGI_FORMAT_R16G16_FLOAT, + Vf::Unorm16x4 => DXGI_FORMAT_R16G16B16A16_UNORM, + Vf::Snorm16x4 => DXGI_FORMAT_R16G16B16A16_SNORM, + Vf::Uint16x4 => DXGI_FORMAT_R16G16B16A16_UINT, + Vf::Sint16x4 => DXGI_FORMAT_R16G16B16A16_SINT, + Vf::Float16x4 => DXGI_FORMAT_R16G16B16A16_FLOAT, + Vf::Uint32 => DXGI_FORMAT_R32_UINT, + Vf::Sint32 => DXGI_FORMAT_R32_SINT, + Vf::Float32 => DXGI_FORMAT_R32_FLOAT, + Vf::Uint32x2 => DXGI_FORMAT_R32G32_UINT, + Vf::Sint32x2 => DXGI_FORMAT_R32G32_SINT, + Vf::Float32x2 => DXGI_FORMAT_R32G32_FLOAT, + Vf::Uint32x3 => DXGI_FORMAT_R32G32B32_UINT, + Vf::Sint32x3 => DXGI_FORMAT_R32G32B32_SINT, + Vf::Float32x3 => DXGI_FORMAT_R32G32B32_FLOAT, + Vf::Uint32x4 => DXGI_FORMAT_R32G32B32A32_UINT, + Vf::Sint32x4 => DXGI_FORMAT_R32G32B32A32_SINT, + Vf::Float32x4 => DXGI_FORMAT_R32G32B32A32_FLOAT, + Vf::Float64 | Vf::Float64x2 | Vf::Float64x3 | Vf::Float64x4 => unimplemented!(), + } +} + +pub fn map_acomposite_alpha_mode(_mode: wgt::CompositeAlphaMode) -> d3d12::AlphaMode { + d3d12::AlphaMode::Ignore +} |