76 lines
2.3 KiB
Rust
76 lines
2.3 KiB
Rust
//! Cache implementations for D3D blob types that need to live
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//! here because of the orphan rule.
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use crate::{CacheKey, Cacheable};
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use windows::core::Interface;
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impl CacheKey for windows::Win32::Graphics::Direct3D::ID3DBlob {
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fn hash_bytes(&self) -> &[u8] {
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unsafe { std::slice::from_raw_parts(self.GetBufferPointer().cast(), self.GetBufferSize()) }
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}
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}
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impl CacheKey for windows::Win32::Graphics::Direct3D::Dxc::IDxcBlob {
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fn hash_bytes(&self) -> &[u8] {
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unsafe { std::slice::from_raw_parts(self.GetBufferPointer().cast(), self.GetBufferSize()) }
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}
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}
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impl Cacheable for windows::Win32::Graphics::Direct3D::ID3DBlob {
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fn from_bytes(bytes: &[u8]) -> Option<Self> {
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let Some(blob) =
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(unsafe { windows::Win32::Graphics::Direct3D::Fxc::D3DCreateBlob(bytes.len()).ok() })
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else {
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return None;
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};
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let slice = unsafe {
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std::slice::from_raw_parts_mut(blob.GetBufferPointer().cast(), blob.GetBufferSize())
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};
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slice.copy_from_slice(bytes);
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Some(blob)
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}
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fn to_bytes(&self) -> Option<Vec<u8>> {
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let slice = unsafe {
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std::slice::from_raw_parts(self.GetBufferPointer().cast(), self.GetBufferSize())
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};
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Some(Vec::from(slice))
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}
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}
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impl Cacheable for windows::Win32::Graphics::Direct3D::Dxc::IDxcBlob {
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fn from_bytes(bytes: &[u8]) -> Option<Self> {
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let Some(blob) = (unsafe {
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windows::Win32::Graphics::Direct3D::Dxc::DxcCreateInstance(
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&windows::Win32::Graphics::Direct3D::Dxc::CLSID_DxcLibrary,
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)
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.and_then(
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|library: windows::Win32::Graphics::Direct3D::Dxc::IDxcUtils| {
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library.CreateBlob(
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bytes.as_ptr().cast(),
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bytes.len() as u32,
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windows::Win32::Graphics::Direct3D::Dxc::DXC_CP(0),
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)
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},
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)
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.ok()
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}) else {
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return None;
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};
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Some(blob.cast().ok()?)
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}
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fn to_bytes(&self) -> Option<Vec<u8>> {
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let slice = unsafe {
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std::slice::from_raw_parts(self.GetBufferPointer().cast(), self.GetBufferSize())
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};
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Some(Vec::from(slice))
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}
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}
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