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<title>slang.git/tools/render-test/shader-input-layout.h, branch master</title>
<subtitle>Making it easier to work with shaders</subtitle>
<id>https://git.yummers.dev/slang.git/atom?h=master</id>
<link rel='self' href='https://git.yummers.dev/slang.git/atom?h=master'/>
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<updated>2025-06-18T17:38:31+00:00</updated>
<entry>
<title>Fix additional VVL violations (#7377)</title>
<updated>2025-06-18T17:38:31+00:00</updated>
<author>
<name>Gangzheng Tong</name>
<email>tonggangzheng@gmail.com</email>
</author>
<published>2025-06-18T17:38:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.yummers.dev/slang.git/commit/?id=3822f9243f7b80be4c47318cf3d0b8d9800e67dd'/>
<id>urn:sha1:3822f9243f7b80be4c47318cf3d0b8d9800e67dd</id>
<content type='text'>
* fix: add sampleCount and mipMaps to st2DMS_f32v4
Fix VUID-VkImageCreateInfo-samples-02257:
The Vulkan spec states: If an OpTypeImage has an MS operand 1,
its bound image must not have been created with
VkImageCreateInfo::samples as VK_SAMPLE_COUNT_1_BIT

* Fix VUID-VkShaderModuleCreateInfo-pCode-08740

Rename VK_KHR_COMPUTE_SHADER_DERIVATIVES_EXTENSION_NAME
to VK_NV_COMPUTE_SHADER_DERIVATIVES_EXTENSION_NAME

* fix: add sampleCount and mipMaps to st2DMS_f32v4
Fix VUID-VkImageCreateInfo-samples-02257:
The Vulkan spec states: If an OpTypeImage has an MS operand 1,
its bound image must not have been created with
VkImageCreateInfo::samples as VK_SAMPLE_COUNT_1_BIT

* Fix VUID-VkShaderModuleCreateInfo-pCode-08740

Rename VK_KHR_COMPUTE_SHADER_DERIVATIVES_EXTENSION_NAME
to VK_NV_COMPUTE_SHADER_DERIVATIVES_EXTENSION_NAME

* Fix VUID-vkCmdDispatch-None-06479
Use correct format for combined depth texture.

* Fix VUID-vkCmdDispatch-format-07753 by setting format
Parse filtering mode for sampler because the RGBA8* formats do not
support linear filtering

* Create MS texture type for sample count &gt; 1

* Use different texture formats for depth compare and gather ops

* Use clearTexture for init the data for MS textures</content>
</entry>
<entry>
<title>update slang-rhi (#6587)</title>
<updated>2025-04-24T08:23:06+00:00</updated>
<author>
<name>Simon Kallweit</name>
<email>64953474+skallweitNV@users.noreply.github.com</email>
</author>
<published>2025-04-24T08:23:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.yummers.dev/slang.git/commit/?id=ae1a5e40880808252c68eb51e44051b32a34d399'/>
<id>urn:sha1:ae1a5e40880808252c68eb51e44051b32a34d399</id>
<content type='text'>
* update slang-rhi submodule

* slang-rhi API changes

* disable agility sdk

* fix texture creation

* update formats in tests

* Extent3D rename

* use 1 mip level for 1D textures for Metal

* fix texture upload

* update to latest slang-rhi

* update slang-rhi

* format code

* update slang-rhi

* do not run texture-intrinsics test on metal

* update slang-rhi

* deal with failing tests

* fix more tests

* update slang-rhi

---------

Co-authored-by: slangbot &lt;186143334+slangbot@users.noreply.github.com&gt;
Co-authored-by: Simon Kallweit &lt;simon.kallweit@gmail.com&gt;</content>
</entry>
<entry>
<title>Update Slang-RHI and enable any debug layers up-front (#6226)</title>
<updated>2025-02-01T05:14:17+00:00</updated>
<author>
<name>Anders Leino</name>
<email>aleino@nvidia.com</email>
</author>
<published>2025-02-01T05:14:17+00:00</published>
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<id>urn:sha1:2949b786a7f04ad31c113b622039fb5b72bc8622</id>
<content type='text'>
* Update Slang-RHI and enable any debug layers up-front

As [1] shows, creating a D3D12 device and then enabling debug layers causes future device
creation to fail.
That means enabling debug layers is a process-wide decision that should be done at
startup, and not just before creating an individual device.
Previously, Slang-RHI enabled debug layers as part of device creation.
The new Slang-RHI revision doesn't do that anymore, but instead allows the user to enable
debug layers earlier, with a separate API.
This change calls the mentioned API before creating any device.

This closes #6172.

* Compile fixes needed after updating slang-rhi

---------

Co-authored-by: Yong He &lt;yonghe@outlook.com&gt;</content>
</entry>
<entry>
<title>Correct include dir for libslang (#5539)</title>
<updated>2024-11-14T04:34:18+00:00</updated>
<author>
<name>Ellie Hermaszewska</name>
<email>ellieh@nvidia.com</email>
</author>
<published>2024-11-14T04:34:18+00:00</published>
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<id>urn:sha1:7b570feed42976a6e787d79a70aaf8e667745e58</id>
<content type='text'>
This stops adding the repo root to the include path for anything linking
with slang. This enabled a bunch of convenient includes, but might lead
to confusing behavior for anyone including slang. Not to mention
differences including it from an install vs source.

Co-authored-by: Yong He &lt;yonghe@outlook.com&gt;</content>
</entry>
<entry>
<title>format</title>
<updated>2024-10-29T06:49:26+00:00</updated>
<author>
<name>Ellie Hermaszewska</name>
<email>ellieh@nvidia.com</email>
</author>
<published>2024-10-29T06:49:26+00:00</published>
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<id>urn:sha1:f65d756bff8d4c5cbc15bd0322a2ae8e6b896a21</id>
<content type='text'>
* format

* Minor test fixes

* enable checking cpp format in ci</content>
</entry>
<entry>
<title>update slang-rhi (#5258)</title>
<updated>2024-10-17T21:59:10+00:00</updated>
<author>
<name>Simon Kallweit</name>
<email>64953474+skallweitNV@users.noreply.github.com</email>
</author>
<published>2024-10-17T21:59:10+00:00</published>
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<id>urn:sha1:fa3287fb6ec38127bad8fe948fbc190e7a3d54b2</id>
<content type='text'>
* update slang-rhi

* update render-test to use new slang-rhi apis

---------

Co-authored-by: Yong He &lt;yonghe@outlook.com&gt;</content>
</entry>
<entry>
<title>Draft: integrate slang-rhi (#4970)</title>
<updated>2024-08-30T16:50:19+00:00</updated>
<author>
<name>Simon Kallweit</name>
<email>64953474+skallweitNV@users.noreply.github.com</email>
</author>
<published>2024-08-30T16:50:19+00:00</published>
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<id>urn:sha1:f428a058ea48535a323c32d206ebc7e551c3c3e9</id>
<content type='text'>
* add slang-rhi submodule

* refactor render-test to use slang-rhi and remove OpenGL support

* remove -vk -glsl tests

* remove gl test

* disable failing test

* allow recursive submodules in github actions

* update slang-rhi

* update slang-rhi

---------

Co-authored-by: Yong He &lt;yonghe@outlook.com&gt;</content>
</entry>
<entry>
<title>SPIRV: Fix performance issue when handling large arrays. (#4064)</title>
<updated>2024-05-01T23:44:22+00:00</updated>
<author>
<name>Yong He</name>
<email>yonghe@outlook.com</email>
</author>
<published>2024-05-01T23:44:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.yummers.dev/slang.git/commit/?id=0bb826f8b92aec330875d0b966c1f4a6b99988bf'/>
<id>urn:sha1:0bb826f8b92aec330875d0b966c1f4a6b99988bf</id>
<content type='text'>
* SPIRV: Fix performance issue when handling large arrays.

* Add test for packing.

* Fix clang.</content>
</entry>
<entry>
<title>Implement GLSL gimageDim &amp; memory qualifiers with optional extension(s); resolves #3587 for GLSL &amp; SPIR-V targets #3631 (#3810)</title>
<updated>2024-03-26T20:07:32+00:00</updated>
<author>
<name>ArielG-NV</name>
<email>159081215+ArielG-NV@users.noreply.github.com</email>
</author>
<published>2024-03-26T20:07:32+00:00</published>
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<id>urn:sha1:0877d1a3e9d69fdbf4087581df96954e56e4dd97</id>
<content type='text'>
* [early push of code since memory qualifiers may be made into a seperate branch &amp; pr and I rather make it simple to split the implementation if required]

all type &amp; functions impl. for GLSL image type

added all memory qualifiers &amp; tests for direct read/write [GLSL syntax] (DID NOT test or implement parameter qualifiers, that is next commit)
* this inlcudes emit-glsl &amp; emit-spirv for qualifier decorations
* this also includes error handling
* this includes parsing

* full implementation other than Rect; all errors and basic tests are done &amp; working

what is left:
1. need to now add Rect type support (additional TextureImpl flag)
2. tests
3. testing infrastructure to support variety of types

* testing framework now works with images of all types and imageBuffers -- next steps are actual tests

* push code for mostly working image atomics; missing int64/uint64 tests and slightly broken feature

likley due to missing code from master which I pushed for regular atomics

* fix all remaining shader image atomic issues and tests to work with float &amp; i64/u64 fully

will now clean up code and squash the commits (since they are quite all over the place)

* refactor code to work &amp; look correct, fix all regressions

Turned off tests for texture format R64 due to the shader use limitation of currently being only for storage buffers on most hardware (test fail cause, this is not allowed)

Changed raygen.slang &amp; nv-ray-tracing-motion-blur.slang since both cross-compiled with glslang, which does not respect layout(rgba8) for RWBuffer's, in this scenario making the type into a SPIR-V rgba32f, which is incorrect and a known problem, this causes different code to be outputted from Slang &amp; HLSL+GLSL-&gt;Slang paths

Clean up all code and better explain the "why" for the gimageDim definition we use various strings of Slang code, the gist is:
1. Parameters are structured as per IMAGE_PARAM keyword in spec, and we respect this in order to match specification (to allow easy code iteration)
2. sample parameters are required for functions
3. types are inconsistently named

fixed regression of breaking l-value lowering when r-value should be lowered (lower-to-ir)

fix compiler warnings

remove unneeded lambdas

`expr-&gt;type.isLeftValue = isMutableGLSLBufferBlockVarExpr(baseExpr) &amp;&amp; (expr-&gt;type.hasReadOnlyOnTarget == false);` is an adjustment made such that a buffer block is mutable only if the block is mutable and the base expression is mutable (to handle case of readonly buffer block, immutable)

* remove rectangle parameter

* use proper const syntax and struct naming

* adjust syntax

* adjust modifier capabilitites: HLSL+GLSL --&gt; GLSL. Notice most specifically, if the parent is a global struct we can put a memory qualifier, this does not include, struct inside a struct, with a member variable with a memory qualifier (since then you could use the struct in invalid ways). Added test for struct inside struct with member variable with memory qualifier.

adjust syntax and remove code which will rot

* adjust formatting for consistency

* addressing review feedback

addressing review feedback:

change testing code to handle int and float/half correctly in all cases

adjust testing code syntax as requested

change vkdevice code to fit a different form as requested

* adjust code as per requested for review:

1. adjusted testing code logic to handle non 0-1 values appropriately, notice int8_t will likley be the range and set order of {[0,127],[-1,-128]}, this is intentional
2. syntax adjustments for correctness

* trying to fix falcor regressions

* add back removed code for regression testing

* test removing changes which may break falcor

* Revert "test removing changes which may break falcor"

This reverts commit 240da97f06c23e98a26ac23cf1d385995c67b251.

* disable R64 support in attempt to fix falcor tests

* Revert "disable R64 support in attempt to fix falcor tests"

This reverts commit 317cb632eb2f47e980fc4aeafe418f8060f4c473.

* disable major device changes (still trying to figure out falcor fails -- locally working different than CI)

* test removing d3d changes

* remove all format changes

* add back removed code for regression testing

* try something to get code to work with falcor

* address review

* Add way to handle constref/ref/encapsulated texture objects with memory qualifiers as a parameter.

Fixed an issue (and improved codegen) for when we have a store(dst,load(src)) pattern, where dst is supposed to be equal to src for when resolving globalParam's (no need for work-arounds anymore)

* move recent-fix/change to textureType loading into a proper optimization pass which now runs after SPIR-V legalization to catch odd SPIR-V emitting after legalizing types for SPIR-V

* Revert most recent optimization pass change, add work around getting a unmangled global parameter address through a intrinsic op instead of spir-v intrinsic (works same as `__imagePointer()`)

* remove unneeded changes

* remove unneeded `__constref` in glsl.meta

* move memory qualifier checks to visitInvoke of check-expr.cpp

move GetLegalizedSPIRVGlobalParamAddr resolving to spirv-legalization pass

move error for "if using non texture type with memory qualifer in param" earlier such that we error with this first. No point in telling user "you are not putting correct memory qualifiers" when memory qualifiers should not have been used.

* add memory qualifier folding modifier 'MemoryQualifierCollectionModifier' to reduce searching and processing (later will be adapted to whole system) as suggested/asked.

The utility is a method to track memory qualifiers without doing a expensive linked-list traversal (image's have 4 modifiers normally).

* properly pass multiple qualifiers from checkModifier down to the `modifier`s list

* addressing review comments:

* change implementation to properly handle restrict modifier

* add comments about implementation for clarity</content>
</entry>
<entry>
<title>Type layouts for structured buffers with counters (#3269)</title>
<updated>2023-10-17T22:26:00+00:00</updated>
<author>
<name>Ellie Hermaszewska</name>
<email>ellieh@nvidia.com</email>
</author>
<published>2023-10-17T22:26:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.yummers.dev/slang.git/commit/?id=7826afcaad78cc33c976bb3db3cdc9eada4c77e8'/>
<id>urn:sha1:7826afcaad78cc33c976bb3db3cdc9eada4c77e8</id>
<content type='text'>
* More tests for append structured buffer

* Append and Consume structured buffer tests for DX12

* neaten

* test wobble

* Add counter layout information to append/consume structured buffers

* add getRWStructuredBufferType

* Correct definition of get size for append/consume structured buffers

* tweak append structured buffer test

* Allow initializing counter buffer in render test

* vulkan test for consume structured buffer

* Handle null counterVarLayout in getExplicitCounterBindingRangeOffset

* remove dead code

* Implement atomic counter increment/decrement for spirv

* explicit spirv test

* Add missing check on result

* Hold on to counter resources

---------

Co-authored-by: Yong He &lt;yonghe@outlook.com&gt;</content>
</entry>
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