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path: root/source/core/slang-platform.cpp
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2025-08-07Fix intrinsic LoadLocalRootTableConstant for optix (#7949)Harsh Aggarwal (NVIDIA)
Due to an older version of spec referred there was an inconsitency v1.29 2/20/2025 - [HitObject LoadLocalRootArgumentsConstant] Latest spec https://microsoft.github.io/DirectX-Specs/d3d/Raytracing.html#hitobject-loadlocalroottableconstant Refer: OptiX backend support for Shader Execution Reordering (SER) features as outlined in issue #6647. -
2025-07-21Add utility to trace creation of problematic IRInsts to assist LLM in ↵Copilot
debugging (#7820) * Initial plan * Add SLANG_DEBUG_IR_BREAK environment variable support Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Apply code formatting to SLANG_DEBUG_IR_BREAK implementation Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Improve stack trace debugging with -rdynamic flag and backtrace_symbols Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Address PR feedback: use PlatformUtil::getEnvironmentVariable, remove -rdynamic flag, and delete fallback branch Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Address PR feedback: simplify env var parsing, move backtrace to PlatformUtil, use #if for SLANG_LINUX_FAMILY Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Address PR feedback: remove unneeded include, make backtrace() more generic by removing uid parameter Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Fix and clone source tracking. * Add python script to dump traces. * Update instructions. * Batch calls to addr2line * Cleanup claude instructions. * update claude action. * Remove duplicated build instructions from claude.yml workflow Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * fix build error. * Fix build errors --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com> Co-authored-by: Gangzheng Tong <tonggangzheng@gmail.com>
2025-06-26Use LoadLibraryExA instead of LoadLibraryA (#7535)jarcherNV
Slangpy uses AddDllDirectory to specify locations of Slang DLL files. LoadLibraryA ignores this so instead use LoadLibraryExA.
2024-12-13Correctly distinguish between windows and MSVC (#5851)Ellie Hermaszewska
Partially sorts https://github.com/shader-slang/slang/issues/5843
2024-11-05Move switch statement bodies to their own lines (#5493)Ellie Hermaszewska
* Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-29formatEllie Hermaszewska
* format * Minor test fixes * enable checking cpp format in ci
2023-04-26Fix most of the disabled warnings on gcc/clang (#2839)Ellie Hermaszewska
2023-04-25StringBuilder to lowerCamel (#2840)jsmall-nvidia
* #include an absolute path didn't work - because paths were taken to always be relative. * WIP lowerCamel Dictionary. * WIP more lowerCamel fixes for Dictionary. * Add/Remove/Clear * GetValue/Contains * Fix tabs in dictionary. Count -> getCount * Fix fields with caps. * Key -> key Value -> value Use m_ for members where appropriate. Use lowerCamel in linked list. * Some small fixes/improvements to Dictionary. * Kick CI. * Small tidy on String. * Append -> append * ToString -> toString ProduceString -> produceString * Small fixes. * StringToXXX -> stringToXXX * Fix typo introduced by Append -> append. * Made intToAscii do reversal at the end. --------- Co-authored-by: Yong He <yonghe@outlook.com>
2023-04-25Dictionary using lowerCamel (#2835)jsmall-nvidia
* #include an absolute path didn't work - because paths were taken to always be relative. * WIP lowerCamel Dictionary. * WIP more lowerCamel fixes for Dictionary. * Add/Remove/Clear * GetValue/Contains * Fix tabs in dictionary. Count -> getCount * Fix fields with caps. * Key -> key Value -> value Use m_ for members where appropriate. Use lowerCamel in linked list. * Some small fixes/improvements to Dictionary. * Kick CI.
2023-04-20Changes for vkd3d proton (#2813)Ellie Hermaszewska
* Add some caches to .gitignore * Remove appendWideChars Use String::toWString instead * s/Sleep/sleepCurrentThread * formatting * Expand set of shared libraries which have buggy dlclose Work around https://github.com/microsoft/DirectXShaderCompiler/issues/5119 and https://github.com/doitsujin/dxvk/issues/3330 libdxcompiler.so invokes UB on dlclose, the dxvk libs break GDB when closed * Add assert for specialization failure on DX11 As a band aid for https://github.com/shader-slang/slang/issues/2805 * More fine grained selection of directx features
2023-04-14Some small fixes with Windows/DX usage (#2797)Ellie Hermaszewska
* Correct case of windows.h includes * Use Slang::SharedLibrary to load directx dlls * s/max/std::max/ * Factor common OS code in calcHasApi * Add DXIL test for compute/simple * s/false/FALSE for calls to WinAPI functions * Factor common OS code in gfxGetAdapters * 2 missing headers d3d12sdklayers for ID3DDebug climits for UINT_MAX * Define out unused function on Linux * Only try to load Vulkan and CUDA on Windows or Linux * simplify D3DUtil::getDxgiModule * Remove WIN32_LEAN_AND_MEAN &co from source files Add a global define * Set WIN32_LEAN_AND_MEAN &friends in headers Restore previous state also * regenerate vs projects
2023-04-14Enable SLANG_ENABLE_DXIL_SUPPORT on non-Windows platforms (#2750)Ellie Hermaszewska
* Enable SLANG_ENABLE_DXIL_SUPPORT on non-Windows platforms This currently grabs the DXC headers from the system, rather than from external/dxc We should make this consistent by either pulling in the Windows adapter from DXC into external/dxc or by making the Windows builds use <dxc/dxcapi.h> * Update dxcapi and add DXC's WinAdapter * Use our copy of dxcapi.h for non-windows DXC usage * Only set -fms-extensions where necessary * Work around dxc dlclose bug * Neaten and comment dxc-compiler.cpp
2022-10-03IMutableFileSystem::saveFileBlob (#2427)jsmall-nvidia
* #include an absolute path didn't work - because paths were taken to always be relative. * Remove ref count for Entry in RiffFileSystem. Free up backing Entry types (to work around Dictionary not doing this). * Some small improvements to RiffFileSystem. * Add testing for file systems. * Split out MemoryFileSystem. * Add some documentation around different FileSystems. * Small tiry up - removing unused headers, fixing some comments. Use StringBlob::moveCreate where appropriate. * Small improvement to MemoryFileSystem. Improve documentation comments a little. * Added PathKind * * Make MemoryFileSystem not have implicit directories * Make RelativeFileSystem only allow access to files in file system (kind of like chroot) * Added Path::simplifyAbsolute * Special handling for root of MemoryFileSystem * Improvements around paths for different impls * More improvements around RelativeFileSystem. Special case root handling. * Test archive serialization. Move testinf from compression. Remove the implicit directory test -> doesn't work on all file systems. * Small optimization that removes need for check for a parent unless an item is being *created*. * Add implicit path testing. * Add support for saveFileBlob Add testing for saveFileBlob * Removed TemporaryFileSet Added PlatformUtil::outputDebugMessage * Some small improvements around RelativeFileSystem. * Split out ImplicitDirectoryCollector so can use without requiring compression systems. * Split out StringSliceIndexMap into own files.
2022-08-10Language server pointer type support + add `DLLImport` test (#2350)Yong He
* Language server pointer type support. + Natvis for AST. * Add completion suggestion for GUID. * Make executable test able to use slang-rt. * Fix gcc argument for rpath. * Fix DLLImport on linux. * Fix windows. * Fix. Co-authored-by: Yong He <yhe@nvidia.com>
2021-07-19Enable swiftshader in linux CI builds (#1909)Yong He
2021-03-11Add Linux support to `platform` and `gfx`. (#1744)Yong He
2021-01-26Improved NVRTC location finding (#1674)jsmall-nvidia
* #include an absolute path didn't work - because paths were taken to always be relative. * WIP more sophisticated mechanism to find NVRTC. * Improve nvrtc searching to include PATH. * Make getting an extension able to differentiate between no extension, and just a . * Add comment. * Add support for searching instance path. * Small improvements around scope and finding NVRTC. * Improve documentation around NVRTC loading.
2020-09-01Support dynamic existential shader parameters in render-test (#1525)Yong He
* Support dynamic existential shader parameters in render-test * Fix linux build error. * Fixes. * Fix code review issues. * Fix gcc error. * More fixes. * More fixes.
2020-01-24Texture Sample available in CUDA (#1176)jsmall-nvidia
* WIP: Trying to figure out how texturing will work with CUDA. * WIP: Fixes for CUDA layout. Initial CUDA texture test. * WIP: Outputs something compilable by CUDA for TextureND.Sample * 2d texture working with CUDA. * Fix how binding for SamplerState occurs in CUDA. * Small tidy up of comments.
2019-08-12Ability to set Paths on Pass Through/Back End Compilers (#1010)jsmall-nvidia
* Expanded prelude for some other resource types. Disable C++ output for ParameterGroup. * WIP: Layout for CPU. * Fixes to CPU layout. * WIP: The uniform is output, but the variable definition is not. * WIP: Entry point parameters to global scope in C++. Handling of resource types (in so far as outputting) * Some discussion of ABI and different input types. * WIP: More C++ support around resource types. * WIP: Split up variables into different structures on emit. * WIP: Emitting C++ with wrapping up of 'Context' * WIP: C++ code has access to semantic values. Wrap in struct so can use method calls to pass shared state. Disable legalizeResourceTypes and legalizeExistentialTypeLayout * Fix structured buffer layout for CPU. * Remove testing/handling of global uniforms on CPU path. Typo fix. Changed CPU tests to use new CPU calling convention. * Check globals are working. Initalize context to zero globals. * Order the global parameters for C++ ouput by their layout. Note - that layout isn't quite working correctly because the StructuredBuffer<int> the int seems to be consuming uniform space. * Work around for reflection not having all data needed for layout ordering for C++ code. * Output constant buffers as pointers. * Entry point parameters accessed through pointer to struct. * WIP: Layout for CPU is reasonable for test case. * Only output 'f' after float literal if type marks as a float. * Cast construction works on C++. * Made IntrinsicOp::ConvertConstruct to make intent clearer. * C++ handling construction from scalar. Handle access of a scalar with .x. Check default initialization. * Comment about need for split of kIROp_construct. Release build works. * Added support from constructVectorFromScalar to C/C++ target. * Handling of in/out in C/C++. * First pass documentation CPU support. * Improvements to C++/C slang code generation documentation. * Small doc change to include need for mechansim to specify cpp compiler path. * WIP: Being able to set path for backends. * Better handling of swizzling - allow swizzling a scalar into a vector. * Fix missing/broken headers for path setting on session. * Fix for compiling using clang on Windows. * Remove Clang test code. * * Removed spSessionGetGlobalSession - no longer needed because SlangSession is slang::IGlobalSession alias. * Gave Session a ref count on spCreateSession, and have it checked on spDestroySession, so behaves correctly as ISlangUnknown Note that spDestroySession does a release (and checks the ref count on debug builds). It's behaviour could be the same as just release, but this seems closer to the original intention.
2019-06-19Feature/shared library review (#992)jsmall-nvidia
* Added setNull to RefPtr Renamed combineBuilder into combineIntoBuilder * Added Path::append
2019-06-18* Added Path::combineBuilder, so as two sub paths can be combined into a ↵jsmall-nvidia
StringBuilder (#988) * Renamed and improved comments on SharedLibrary
2019-06-14Runtime Shared Library compilation and testing (#985)jsmall-nvidia
* Removed the need for VisualStudio specific CPPCompiler Improved the version parsing for gcc/clang Removed need for slang-unix-cpp-compiler-util.cpp/.h Remove binary before compiling in the compile c tests * Moved VisualStudio calcArgs into CPPCompilerUtil - as code is not windows specific. * Set up compile time version for gcc and clang * Fix compilation on OSX - use remove instead of unlink for file deletion. * On OSX - clang uses different string format. * Removed /bin/sh invoking as not required for OSX. * First pass working testing with shared libraries.
2019-05-31Use slang- prefix on slang compiler and core source (#973)jsmall-nvidia
* Prefixing source files in source/slang with slang- * Prefix source in source/slang with slang- prefix. * Rename core source files with slang- prefix. * Update project files. * Fix problems from automatic merge.