wgpu_hal/auxil/
mod.rs

1#[cfg(dx12)]
2pub(super) mod dxgi;
3
4#[cfg(all(native, feature = "renderdoc"))]
5pub(super) mod renderdoc;
6
7pub mod db {
8    pub mod amd {
9        pub const VENDOR: u32 = 0x1002;
10    }
11    pub mod apple {
12        pub const VENDOR: u32 = 0x106B;
13    }
14    pub mod arm {
15        pub const VENDOR: u32 = 0x13B5;
16    }
17    pub mod broadcom {
18        pub const VENDOR: u32 = 0x14E4;
19    }
20    pub mod imgtec {
21        pub const VENDOR: u32 = 0x1010;
22    }
23    pub mod intel {
24        pub const VENDOR: u32 = 0x8086;
25        pub const DEVICE_KABY_LAKE_MASK: u32 = 0x5900;
26        pub const DEVICE_SKY_LAKE_MASK: u32 = 0x1900;
27    }
28    pub mod mesa {
29        // Mesa does not actually have a PCI vendor id.
30        //
31        // To match Vulkan, we use the VkVendorId for Mesa in the gles backend so that lavapipe (Vulkan) and
32        // llvmpipe (OpenGL) have the same vendor id.
33        pub const VENDOR: u32 = 0x10005;
34    }
35    pub mod nvidia {
36        pub const VENDOR: u32 = 0x10DE;
37    }
38    pub mod qualcomm {
39        pub const VENDOR: u32 = 0x5143;
40    }
41}
42
43/// Maximum binding size for the shaders that only support `i32` indexing.
44/// Interestingly, the index itself can't reach that high, because the minimum
45/// element size is 4 bytes, but the compiler toolchain still computes the
46/// offset at some intermediate point, internally, as i32.
47pub const MAX_I32_BINDING_SIZE: u32 = (1 << 31) - 1;
48
49pub fn map_naga_stage(stage: naga::ShaderStage) -> wgt::ShaderStages {
50    match stage {
51        naga::ShaderStage::Vertex => wgt::ShaderStages::VERTEX,
52        naga::ShaderStage::Fragment => wgt::ShaderStages::FRAGMENT,
53        naga::ShaderStage::Compute => wgt::ShaderStages::COMPUTE,
54    }
55}
56
57impl crate::CopyExtent {
58    pub fn map_extent_to_copy_size(extent: &wgt::Extent3d, dim: wgt::TextureDimension) -> Self {
59        Self {
60            width: extent.width,
61            height: extent.height,
62            depth: match dim {
63                wgt::TextureDimension::D1 | wgt::TextureDimension::D2 => 1,
64                wgt::TextureDimension::D3 => extent.depth_or_array_layers,
65            },
66        }
67    }
68
69    pub fn min(&self, other: &Self) -> Self {
70        Self {
71            width: self.width.min(other.width),
72            height: self.height.min(other.height),
73            depth: self.depth.min(other.depth),
74        }
75    }
76
77    // Get the copy size at a specific mipmap level. This doesn't make most sense,
78    // since the copy extents are provided *for* a mipmap level to start with.
79    // But backends use `CopyExtent` more sparingly, and this piece is shared.
80    pub fn at_mip_level(&self, level: u32) -> Self {
81        Self {
82            width: (self.width >> level).max(1),
83            height: (self.height >> level).max(1),
84            depth: (self.depth >> level).max(1),
85        }
86    }
87}
88
89impl crate::TextureCopyBase {
90    pub fn max_copy_size(&self, full_size: &crate::CopyExtent) -> crate::CopyExtent {
91        let mip = full_size.at_mip_level(self.mip_level);
92        crate::CopyExtent {
93            width: mip.width - self.origin.x,
94            height: mip.height - self.origin.y,
95            depth: mip.depth - self.origin.z,
96        }
97    }
98}
99
100impl crate::BufferTextureCopy {
101    pub fn clamp_size_to_virtual(&mut self, full_size: &crate::CopyExtent) {
102        let max_size = self.texture_base.max_copy_size(full_size);
103        self.size = self.size.min(&max_size);
104    }
105}
106
107impl crate::TextureCopy {
108    pub fn clamp_size_to_virtual(
109        &mut self,
110        full_src_size: &crate::CopyExtent,
111        full_dst_size: &crate::CopyExtent,
112    ) {
113        let max_src_size = self.src_base.max_copy_size(full_src_size);
114        let max_dst_size = self.dst_base.max_copy_size(full_dst_size);
115        self.size = self.size.min(&max_src_size).min(&max_dst_size);
116    }
117}
wgpu_hal/auxil/mod.rs

wgpu_hal/auxil/
mod.rs
