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Merged
kvark merged 3 commits into from
Apr 22, 2021
Merged

Add the definition of renderable format #1653

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8f9675e
Add the definition of renderable format
Apr 22, 2021
6feae1c
Update spec/index.bs from Kai
Apr 22, 2021
f0bd562
Address comment from Dzmitry
Apr 22, 2021
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14 changes: 10 additions & 4 deletions spec/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -2544,7 +2544,10 @@ note that the set of representable values is not exactly the same:
for depth24unorm, 1 ULP has a constant value of 1 / (2<sup>24</sup> &minus; 1);
for depth32float, 1 ULP has a variable value no greater than 1 / (2<sup>24</sup>).

Issue: {{GPUTextureFormat/"rgb9e5ufloat"}} cannot be used as a color attachment.
A renderable format is either <dfn>color renderable format</dfn>, or <dfn>depth or stencil renderable format</dfn>.
If a format is listed in [[#plain-color-formats]] with {{GPUTextureUsage/RENDER_ATTACHMENT}} capability, it is a
color renderable format. Any other format is not a color renderable format. Any depth/stencil format is a
depth or stencil renderable format. Any other format is not a depth or stencil renderable format.

# Samplers # {#samplers}

Expand Down Expand Up @@ -6153,7 +6156,7 @@ dictionary GPURenderPassColorAttachment {
Given a {{GPURenderPassColorAttachment}} |this| the following validation rules
apply:

1. |this|.{{GPURenderPassColorAttachment/view}} must have a renderable color format.
1. |this|.{{GPURenderPassColorAttachment/view}} must have a [=color renderable format=].
1. |this|.{{GPURenderPassColorAttachment/view}}.{{GPUTextureView/[[texture]]}}.{{GPUTexture/[[textureUsage]]}}
must contain {{GPUTextureUsage/RENDER_ATTACHMENT}}.
1. |this|.{{GPURenderPassColorAttachment/view}} must be a view of a single [=subresource=].
Expand Down Expand Up @@ -6244,8 +6247,8 @@ dictionary GPURenderPassDepthStencilAttachment {
Given a {{GPURenderPassDepthStencilAttachment}} |this| the following validation
rules apply:

1. |this|.{{GPURenderPassDepthStencilAttachment/view}} must have a renderable
depth-and/or-stencil format.
1. |this|.{{GPURenderPassDepthStencilAttachment/view}} must have a [=depth or stencil renderable
format=].
1. |this|.{{GPURenderPassDepthStencilAttachment/view}} must be a view of a
single [=texture subresource=].
1. |this|.{{GPURenderPassDepthStencilAttachment/view}}.{{GPUTexture/[[textureUsage]]}}
Expand Down Expand Up @@ -8329,6 +8332,9 @@ Only formats with {{GPUTextureSampleType}} {{GPUTextureSampleType/"float"}} can
The {{GPUTextureUsage/STORAGE|GPUTextureUsage.STORAGE}} column specifies the support for {{GPUTextureUsage/STORAGE}}
usage in the core API, including both {{GPUStorageTextureAccess/"read-only"}} and {{GPUStorageTextureAccess/"write-only"}}.

The {{GPUTextureUsage/STORAGE|GPUTextureUsage.RENDER_ATTACHMENT}} column specifies the support for
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kvark marked this conversation as resolved.
{{GPUTextureUsage/RENDER_ATTACHMENT}} usage in the core API.

<table class='data'>
<thead class=stickyheader>
<tr>
Expand Down