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bgra8unorm-storage only enables write-only #4741

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Merged
kainino0x merged 1 commit into from
Jul 18, 2024
Merged

bgra8unorm-storage only enables write-only #4741

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69 changes: 53 additions & 16 deletions spec/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -15881,20 +15881,21 @@ The [=texel block memory cost=] of each of these formats is the same as its
<table class=data>
<thead class=stickyheader>
<tr>
<th>Format
<th>{{GPUTextureSampleType}}
<th><span class=vertical>{{GPUTextureUsage/RENDER_ATTACHMENT}}</span>
<th><span class=vertical>[=blendable=]</span>
<th><span class=vertical>multisampling</span>
<th><span class=vertical>resolve</span>
<th><span class=vertical>{{GPUStorageTextureAccess/"write-only"}} or {{GPUStorageTextureAccess/"read-only"}}<br>
{{GPUTextureUsage/STORAGE_BINDING}}</span>
<th><span class=vertical>{{GPUStorageTextureAccess/"read-write"}}<br>
{{GPUTextureUsage/STORAGE_BINDING}}</span>
<th>[=Texel block copy footprint=] (Bytes)
<th>[=Render target pixel byte cost=] (Bytes)
<th rowspan=2>Format
<th rowspan=2>{{GPUTextureSampleType}}
<th rowspan=2><span class=vertical>{{GPUTextureUsage/RENDER_ATTACHMENT}}</span>
<th rowspan=2><span class=vertical>[=blendable=]</span>
<th rowspan=2><span class=vertical>multisampling</span>
<th rowspan=2><span class=vertical>resolve</span>
<th colspan=3>{{GPUTextureUsage/STORAGE_BINDING}}
<th rowspan=2>[=Texel block copy footprint=] (Bytes)
<th rowspan=2>[=Render target pixel byte cost=] (Bytes)
<tr>
<th><span class=vertical>{{GPUStorageTextureAccess/"write-only"}}</span>
<th><span class=vertical>{{GPUStorageTextureAccess/"read-only"}}</span>
<th><span class=vertical>{{GPUStorageTextureAccess/"read-write"}}</span>
</thead>
<tr><th colspan=10>8 bits per component (1-byte [=render target component alignment=])
<tr><th colspan=11>8 bits per component (1-byte [=render target component alignment=])
<tr>
<td>{{GPUTextureFormat/r8unorm}}
<td>{{GPUTextureSampleType/"float"}},<br/>{{GPUTextureSampleType/"unfilterable-float"}}
Expand All @@ -15904,6 +15905,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>
<td>
<td>
<td colspan=2>1
<tr>
<td>{{GPUTextureFormat/r8snorm}}
Expand All @@ -15914,6 +15916,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td>1
<td>&ndash; <!-- no render target -->
<tr>
Expand All @@ -15925,6 +15928,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>1
<tr>
<td>{{GPUTextureFormat/r8sint}}
Expand All @@ -15935,6 +15939,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>1
<tr>
<td>{{GPUTextureFormat/rg8unorm}}
Expand All @@ -15945,6 +15950,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/rg8snorm}}
Expand All @@ -15955,6 +15961,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td>2
<td>&ndash; <!-- no render target -->
<tr>
Expand All @@ -15966,6 +15973,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/rg8sint}}
Expand All @@ -15976,6 +15984,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/rgba8unorm}}
Expand All @@ -15985,6 +15994,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td>
<td>4
<td>8
Expand All @@ -15997,6 +16007,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>
<td>
<td>
<td>4
<td>8
<tr>
Expand All @@ -16007,6 +16018,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- no multisampling without RENDER_ATTACHMENT (gpuweb/gpuweb#2465) -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td>4
<td>&ndash; <!-- no render target --> <!-- If we add render target support for this in the future, rgba8snorm has to be a special case where the render target pixel byte cost = 8 -->
Expand All @@ -16018,6 +16030,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Metal -->
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>4
<tr>
Expand All @@ -16028,6 +16041,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Metal -->
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>4
<tr>
Expand All @@ -16039,6 +16053,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>If {{GPUFeatureName/"bgra8unorm-storage"}} is enabled
<td>
<td>
<td>4
<td>8
<tr>
Expand All @@ -16050,9 +16065,10 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>
<td>
<td>
<td>4
<td>8
<tr><th colspan=10>16 bits per component (2-byte [=render target component alignment=])
<tr><th colspan=11>16 bits per component (2-byte [=render target component alignment=])
<tr>
<td>{{GPUTextureFormat/r16uint}}
<td>{{GPUTextureSampleType/"uint"}}
Expand All @@ -16062,6 +16078,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/r16sint}}
Expand All @@ -16072,6 +16089,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/r16float}}
Expand All @@ -16082,6 +16100,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>
<td>
<td>
<td colspan=2>2
<tr>
<td>{{GPUTextureFormat/rg16uint}}
Expand All @@ -16092,6 +16111,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/rg16sint}}
Expand All @@ -16102,6 +16122,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>
<td>
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/rg16float}}
Expand All @@ -16112,6 +16133,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/rgba16uint}}
Expand All @@ -16121,6 +16143,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Metal -->
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr>
Expand All @@ -16131,6 +16154,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td><!-- Metal -->
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr>
Expand All @@ -16141,9 +16165,10 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr><th colspan=10>32 bits per component (4-byte [=render target component alignment=])
<tr><th colspan=11>32 bits per component (4-byte [=render target component alignment=])
<tr>
<td>{{GPUTextureFormat/r32uint}}
<td>{{GPUTextureSampleType/"uint"}}
Expand All @@ -16153,6 +16178,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/r32sint}}
Expand All @@ -16163,6 +16189,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/r32float}}
Expand All @@ -16175,6 +16202,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>&checkmark;
<td>&checkmark;
<td>&checkmark;
<td colspan=2>4
<tr>
<td>{{GPUTextureFormat/rg32uint}}
Expand All @@ -16184,6 +16212,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr>
Expand All @@ -16194,6 +16223,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr>
Expand All @@ -16206,6 +16236,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>8
<tr>
Expand All @@ -16216,6 +16247,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>16
<tr>
Expand All @@ -16226,6 +16258,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>16
<tr>
Expand All @@ -16238,9 +16271,10 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td><!-- Metal -->
<td>
<td>&checkmark;
<td>&checkmark;
<td>
<td colspan=2>16
<tr><th colspan=10>mixed component width, 32 bits per texel (4-byte [=render target component alignment=])
<tr><th colspan=11>mixed component width, 32 bits per texel (4-byte [=render target component alignment=])
<tr>
<td>{{GPUTextureFormat/rgb10a2uint}}
<td>{{GPUTextureSampleType/"uint"}}
Expand All @@ -16250,6 +16284,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>
<td>
<td>
<td>
<td>4
<td>8
<tr>
Expand All @@ -16261,6 +16296,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td>&checkmark;
<td>
<td>
<td>
<td>4
<td>8
<tr>
Expand All @@ -16269,6 +16305,7 @@ The [=texel block memory cost=] of each of these formats is the same as its
<td colspan=4>If {{GPUFeatureName/"rg11b10ufloat-renderable"}} is enabled
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td><!-- Vulkan -->
<td>4
<td>8
</table>
Expand Down