Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2025-10-16T03:59:47+00:00 2025-10-16T03:59:47+00:00 Yong He yonghe@outlook.com 2025-10-16T03:59:47+00:00 urn:sha1:01510f2c922af8629c7a730ef92a31fa83bd9f49 This PR implements `Access.Immutable` to allow pointers to immutable data. The new type `ImmutablePtr<T>` is defined as an alias of `Ptr<T, Address.Immutable>`. By forming a immutable pointer, the programmer is conveying to the compiler that the data at the pointer address will never change during the execution of the current program. Therefore loads from immutable pointers can be deduplicated by the compiler, and will translate to `__ldg` when generating code for CUDA. The SPIRV backend is not changed in this PR, since the current SPIRV spec makes it very difficult to specify loads from immutable address without generating tons of wrappers and boilerplate type declarations. We would like to see the spec evolved a bit to around its support of `NonWritable` physical storage pointers or immutable loads before we attempt to express such immutability in SPIRV. For now we simply emit ordinary pointers and loads when generating spirv. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> 2025-09-17T12:46:27+00:00 Ronan ro.cailleau@gmail.com 2025-09-17T12:46:27+00:00 urn:sha1:b5078d12127f4ab348b8d6d4c4e8139ba7bfb47f Fixes #8406 (and #8410). `AddressSpace`, `MemoryScope` and `AccessQualifier` are no longer `BaseType`. I added a new `__magic_enum` (very similar to `__magic_type`) syntax to be able to easily create values or these enums from the compiler. (I don't know if it was the right way to do it, but it works and the changes are small enough?). I had a weird bug: `tests/language-feature/capability/address-of.slang` was failing in `IRBuilder::_findOrEmitConstant(IRConstant& keyInst)`. When needing a new `u64(0)`, it did not find it in the `ConstantMap` first, but then failed to add it right after because it already existed in the map! But this was triggered by `IRPtrType* IRBuilder::getPtrType(IROp op, IRType* valueType, AccessQualifier accessQualifier, AddressSpace addressSpace)`, which is a strange coincidence... but I could not find the issue in what I did. I ended up bumping unordered_dense, and it solved the issue (so there was a bug in there). 2025-08-29T22:52:34+00:00 ArielG-NV 159081215+ArielG-NV@users.noreply.github.com 2025-08-29T22:52:34+00:00 urn:sha1:7758625d3fea67e55e98e7e4103d56c9918365be Resolves #7628 Resolves: #8197 Primary Goals: 1. Add `Access` to pointer 2. AddressSpace::GroupShared support for pointers (SPIR-V) 3. Add `__getAddress()` to replace `&` * `&` is not updated to `require(cpu)` since slangpy uses `&`. This means we must: (1) merge PR; (2) replace `&` with `__getAddress()`; (3) add `require(cpu)` to `&` Changes: * Added to `Ptr` the `Access` generic argument & logic (for `Access::Read`). * Moved the generic argument `AddressSpace` from `Ptr` to the end of the type. * Added pointer casting support between any `Ptr` as long as the `AddressSpace` is the same * Disallow globallycoherent T* and coherent T* * Disallow const T*, T const*, and const T* * Fixed .natvis display of `ConstantValue` `ValOperandNode` * Support generic resolution of type-casted integers * Added `VariablePointer` emitting for spirv + other minor logic needed for groupshared pointers Breaking Changes: * Anyone using the `AddressSpace` of `Ptr` will now have to account for the `Access` argument * we disallow various syntax paired with `Ptr` and `T*` --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> 2025-02-28T21:23:29+00:00 Darren Wihandi 65404740+fairywreath@users.noreply.github.com 2025-02-28T21:23:29+00:00 urn:sha1:efbfa7832afff7e6285713086259abda2456ed55 * update hlsl meta * update test * use slang syntax in meta file * improve meta file * fix pack clamp u8 * remove builtin packed types, use typealias instead * fix wgsl pack clamp * fix formatting --------- Co-authored-by: Yong He <yonghe@outlook.com> 2025-01-10T04:49:25+00:00 Jay Kwak 82421531+jkwak-work@users.noreply.github.com 2025-01-10T04:49:25+00:00 urn:sha1:55ff4686e5685c414d82f16b9c1a4a331bd4f853 In order to unblock experiments with SPIRV work-graphs, Slang needs to support the storage class, `NodePayloadAMDX`. Note that this commit is only to support a storage class, `NodePayloadAMDX`. There are many parts required for work-graphs hasn't been implemented yet. The implementation of `DispatchNodeInputRecord` is not required, but it is implemented mostly for a testing purpose. Closes #6049 Co-authored-by: Yong He <yonghe@outlook.com> 2024-12-27T07:52:49+00:00 Darren Wihandi 65404740+fairywreath@users.noreply.github.com 2024-12-27T07:52:49+00:00 urn:sha1:7cecc518e753a90d9b638e8dd1140730ab010ca7 * Add packed bytes builtin type * fix test 2024-12-18T19:33:55+00:00 Yong He yonghe@outlook.com 2024-12-18T19:33:55+00:00 urn:sha1:ae04e604d43d169bcba7f24c8c23a0fdf4cbb483 * Allow `Optional` and `Tuple` to be used in varying input/output. * Fix. * format code * Fix. * Fix test. * Fix. * enhance test. * Fix. * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> 2024-10-30T21:07:38+00:00 Yong He yonghe@outlook.com 2024-10-30T21:07:38+00:00 urn:sha1:28f20f458c4f7f587556a1738d63b70e87c2b148 * Add support for write-only textures. * Fix capabilities. * Fix implementation. * Fix. * format code --------- Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> 2024-10-29T06:49:26+00:00 Ellie Hermaszewska ellieh@nvidia.com 2024-10-29T06:49:26+00:00 urn:sha1:f65d756bff8d4c5cbc15bd0322a2ae8e6b896a21 * format * Minor test fixes * enable checking cpp format in ci 2024-10-28T23:40:53+00:00 Jay Kwak 82421531+jkwak-work@users.noreply.github.com 2024-10-28T23:40:53+00:00 urn:sha1:b7a619b45b0745f166d2dcc5985b994fb1d85d13 This commit changes the word "stdlib" or "standard library" to "core module" in the source code.