slang.git/source/slang/slang-emit-wgsl.h, branch master

Add `vk::offset` to specify member offsets for push constants (#6797)

2025-04-21T18:46:23+00:00

* Add struct member offset qualifier for SPIRV * Implement for GLSL target and add tests * clean up * fix formatting * fix typo * renamed GLSLStructOffset to VkStructOffset and added emit-spirv-via-glsl test case

Add WaveGetLane* support for Metal and WGSL (#6371)

2025-02-28T18:11:26+00:00

* support WaveGetLane* for WGSL and Metal * update test and glsl support * address review comments and fix metal test * add missing pragma guard * update test * Revert "update test" This reverts commit f2b97e91c29de154190710580c343bd0764aedbb. * update failing glsl metal test and added new test * make hlsl and glsl outputs similar * update test * disable tests for Metal and cleanup * comment fix * add expected failures * correct expected failures list * remove expected failure * add tests to expected failure --------- Co-authored-by: Yong He

Add support for WGSL subgroup operations (#6213)

2025-02-02T20:27:11+00:00

* initial work * more work * more work on glsl intrinsics * add subgroup broadcast for glsl * wip add wgsl extension tracking * enable tests, enable extensions and added some todos * format and warning fixes * fix wgsl extension tracker --------- Co-authored-by: Yong He

Add bgra8 format (#6163)

2025-01-24T21:13:16+00:00

* add brga8 format * add tests * minor fixes * cleanup * maybe fix broken quad control test * add missing xslang flag on test --------- Co-authored-by: Yong He

Initial implementation of SP#015 `DescriptorHandle`. (#6028)

2025-01-10T18:57:04+00:00

* Initial implementation of `ResourcePtr`. * Update docs * Fix build error. * Add more discussion. * Update documentation. * Update TOC. * Fix. * Fix. * Add test case for custom `getResourceFromBindlessHandle`. * Add namehint to generated descriptor heap param. * Fix. * Fix. * format code * Rename to `DescriptorHandle`, and add `T.Handle` alias. * Fix compiler error. * Fix. * Fix build. * Renames. * Fix documentation. * Documentation fix. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Implement bitcast for 64-bit date type (#5895)

2024-12-18T01:06:30+00:00

Close #5470 * implement bitcast for 64-bit date type * Move 'ensurePrelude' to base class to remove duplication * Assert on 'double' type for Metal target, as Metal doesn't have 'double' support

Support specialization constant on WGSL and Metal. (#5780)

2024-12-06T08:55:35+00:00

Support interpolation modifiers for WGSL (#5641)

2024-11-25T14:05:13+00:00

* wgsl: Support interpolation modifiers * Move struct key decorations to flattened structs. ** This includes interpolation mode decorations, which must be in the flattened struct. * Emit interpolation attribute. * Enable tests/render/nointerpolation.hlsl for WGSL, as a result. This closes #5625. * Add new expected output for 'nointerpolation' test

Legalize the Entry-point for WGSL (#5498)

2024-11-06T00:31:47+00:00

* Legalize the Entry-point for WGSL The return type of the entry-point needs to be legalized when targeting WGSL. This commit flattens the nested-structs of the return type and the input parameters of the entry-point. Most of code is copied from the legalization code for Metal. The following functions are exactly same to the implementation for Metal or almost same. - flattenInputParameters() : 136 lines - reportUnsupportedSystemAttribute() : 7 lines - ensureResultStructHasUserSemantic() : 46 lines - struct MapStructToFlatStruct : 176 lines - flattenNestedStructs() : 95 lines - maybeFlattenNestedStructs() : 42 lines - _replaceAllReturnInst() : 19 lines - _returnNonOverlappingAttributeIndex() : 16 lines - _replaceAttributeOfLayout() : 23 lines - tryConvertValue() : 41 lines - legalizeSystemValueParameters() : 11 lines They need to be refactored to reduce the duplication later. The test case, `tests/compute/assoctype-lookup.slang`, had a bug that the compute shader was trying to use the varying input/output with the user defined semantics. This commit removes the user defined semantics, because the compute shaders cannot use the user defined semantics. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Fix issue of infinity float literal (#5489)

2024-11-05T19:40:08+00:00

* Fix issue of infinity float literal * add parameters for the test * Correct the way to construct inf and nan In WGSL, expression of "1.0/0.0" is not allowed, it will report compile error, so to construct infinity or nan, we have to assign the float literal to a variable and then use it to bypass the compile error. By doing so, we add getInfinity and getNan functions to the builtin prelude to wgsl. --------- Co-authored-by: Yong He