Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[d3d12] Document map_blend_factor #4151

Merged
merged 1 commit into from
Sep 18, 2023
Merged

[d3d12] Document map_blend_factor #4151

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions wgpu-hal/src/dx12/conv.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,10 @@ pub fn map_polygon_mode(mode: wgt::PolygonMode) -> d3d12_ty::D3D12_FILL_MODE {
}
}

/// D3D12 doesn't support passing factors ending in `_COLOR` for alpha blending
/// (see https://learn.microsoft.com/en-us/windows/win32/api/d3d12/ns-d3d12-d3d12_render_target_blend_desc).
/// Therefore this function takes an additional `is_alpha` argument
/// which if set will return an equivalent `_ALPHA` factor.
fn map_blend_factor(factor: wgt::BlendFactor, is_alpha: bool) -> d3d12_ty::D3D12_BLEND {
use wgt::BlendFactor as Bf;
match factor {
Expand Down