kc3-lang/angle

2022-05-27T15:32:42

D3D11: implement stencil texturing. When GL_DEPTH_STENCIL_TEXTURE_MODE is set to GL_STENCIL_INDEX, GL requires the stencil value to be in the R component. However, when sampling a depth24stencil8 texture in D3D11, the stencil ends up in the G component. So in this mode, swizzle the result from G to R. In order to sample stencil, use the appropriate stencil-only format for the SRV: X24_TYPELESS_G8_UINT for d24s8, X32_TYPELESS_G8X24_UINT for d32fs8. This required adding a new field to D3D11 Format. Bug: angleproject:7303 Change-Id: I7cf70efaaf6c833fa0b2497e4080618dfd7103ac Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3679485 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Stephen White <senorblanco@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>