f327040729
[ci broken]
168 lines
5.4 KiB
Rust
168 lines
5.4 KiB
Rust
use librashader_common::{FilterMode, Size, WrapMode};
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use windows::Win32::Graphics::Direct3D11::*;
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use windows::Win32::Graphics::Dxgi::Common::*;
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use std::error::Error;
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use std::slice;
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use windows::core::PCSTR;
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use windows::Win32::Graphics::Direct3D::Fxc::{D3DCompile, D3DCOMPILE_DEBUG, D3DCOMPILE_SKIP_OPTIMIZATION};
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use windows::Win32::Graphics::Direct3D::ID3DBlob;
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/// wtf retroarch?
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const DXGI_FORMAT_EX_A4R4G4B4_UNORM: DXGI_FORMAT = DXGI_FORMAT(1000);
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const fn d3d11_format_fallback_list(format: DXGI_FORMAT) -> Option<&'static [DXGI_FORMAT]> {
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match format {
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DXGI_FORMAT_R32G32B32A32_FLOAT => Some(&[
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DXGI_FORMAT_R32G32B32A32_FLOAT,
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DXGI_FORMAT_R16G16B16A16_FLOAT,
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DXGI_FORMAT_R32G32B32_FLOAT,
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DXGI_FORMAT_R11G11B10_FLOAT,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_R16G16B16A16_FLOAT => Some(&[
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DXGI_FORMAT_R16G16B16A16_FLOAT,
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DXGI_FORMAT_R32G32B32A32_FLOAT,
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DXGI_FORMAT_R32G32B32_FLOAT,
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DXGI_FORMAT_R11G11B10_FLOAT,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_R8G8B8A8_UNORM => Some(&[
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_B8G8R8X8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_R8G8B8A8_UNORM_SRGB => Some(&[
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DXGI_FORMAT_R8G8B8A8_UNORM_SRGB,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_B8G8R8X8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_B8G8R8A8_UNORM => Some(&[
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_B8G8R8X8_UNORM => Some(&[
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DXGI_FORMAT_B8G8R8X8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_B5G6R5_UNORM => Some(&[
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DXGI_FORMAT_B5G6R5_UNORM,
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DXGI_FORMAT_B8G8R8X8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_EX_A4R4G4B4_UNORM | DXGI_FORMAT_B4G4R4A4_UNORM => Some(&[
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DXGI_FORMAT_B4G4R4A4_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_A8_UNORM => Some(&[
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DXGI_FORMAT_A8_UNORM,
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DXGI_FORMAT_R8_UNORM,
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DXGI_FORMAT_R8G8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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DXGI_FORMAT_R8_UNORM => Some(&[
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DXGI_FORMAT_R8_UNORM,
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DXGI_FORMAT_A8_UNORM,
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DXGI_FORMAT_R8G8_UNORM,
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DXGI_FORMAT_R8G8B8A8_UNORM,
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DXGI_FORMAT_B8G8R8A8_UNORM,
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DXGI_FORMAT_UNKNOWN,
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]),
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_ => None,
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}
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}
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pub fn d3d11_get_closest_format(
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device: &ID3D11Device,
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format: DXGI_FORMAT,
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format_support_mask: i32,
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) -> DXGI_FORMAT {
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let default_list = [format, DXGI_FORMAT_UNKNOWN];
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let format_support_list = d3d11_format_fallback_list(format)
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.unwrap_or(&default_list);
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let format_support_mask = format_support_mask as u32;
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for supported in format_support_list {
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unsafe {
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if let Ok(supported_format) = device.CheckFormatSupport(*supported)
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&& (supported_format & format_support_mask) == format_support_mask {
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return *supported;
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}
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}
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}
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return DXGI_FORMAT_UNKNOWN;
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}
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pub fn d3d_compile_shader(source: &[u8], entry: &[u8], version: &[u8]) -> Result<ID3DBlob> {
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unsafe {
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let mut blob = None;
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D3DCompile(
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source.as_ptr().cast(),
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source.len(),
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None,
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None,
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None,
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PCSTR(entry.as_ptr()),
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PCSTR(version.as_ptr()),
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if cfg!(debug_assertions) {
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D3DCOMPILE_DEBUG | D3DCOMPILE_SKIP_OPTIMIZATION
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} else {
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0
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},
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0,
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&mut blob,
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None,
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)?;
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Ok(blob.unwrap())
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}
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}
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pub type ShaderFactory<'a, L, T>
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= unsafe fn (&'a ID3D11Device, &[u8], linkage: L) -> windows::core::Result<T>;
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pub fn d3d11_compile_bound_shader<'a, T, L>(device: &'a ID3D11Device, blob: &ID3DBlob, linkage: L, factory: ShaderFactory<'a, L, T>)
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-> Result<T>
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where L: Into<windows::core::InParam<'a, ID3D11ClassLinkage>>,{
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unsafe {
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// SAFETY: slice as valid for as long as vs_blob is alive.
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let dxil = slice::from_raw_parts(
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blob.GetBufferPointer().cast::<u8>(),
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blob.GetBufferSize(),
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);
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let compiled = factory(device, dxil, linkage)?;
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Ok(compiled)
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}
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}
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pub fn d3d11_create_input_layout(device: &ID3D11Device, desc: &[D3D11_INPUT_ELEMENT_DESC], blob: &ID3DBlob) -> Result<ID3D11InputLayout> {
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unsafe {
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// SAFETY: slice as valid for as long as vs_blob is alive.
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let dxil = slice::from_raw_parts(
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blob.GetBufferPointer().cast::<u8>(),
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blob.GetBufferSize(),
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);
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let compiled =
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device.CreateInputLayout(desc, dxil)?;
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Ok(compiled)
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}
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}
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// todo: d3d11.c 2097
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pub type Result<T> = std::result::Result<T, Box<dyn Error>>;
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