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path: root/source/core/slang-platform.cpp
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* Use LOAD_LIBRARY_SEARCH_DEFAULT_DIRS for LoadLibraryExW (#8491)Gangzheng Tong2025-09-19
| | | | | | | | | | | | | | | | | Before: - Uses `LOAD_LIBRARY_SEARCH_USER_DIRS` in `LoadLibraryExW`, which might cause exception if there is no pathes added by `AddDllDirectory()` After: - Use the composite flag `LOAD_LIBRARY_SEARCH_DEFAULT_DIRS`, which searches for several locations. - Will still search dir added by `AddDllDirectory()`, but avoids empty path seraching if there is no AddDllDirectory() calls. Related to https://github.com/shader-slang/slang/issues/8462 --------- Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* include limits.h in slang-platform.cpp (#8473)John Zupin2025-09-19
| | | | | | | | fixes https://github.com/shader-slang/slang/issues/8472 Fixes an issue with GCC 9.4.0 on Ubuntu 20.04, it will throw an error about PATH_MAX not being declared. Co-authored-by: Mukund Keshava <mkeshava@nvidia.com>
* Use wide char version of Windows API (#8390)Gangzheng Tong2025-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This PR modernizes the Windows-specific code by replacing ANSI Windows API functions with their Unicode (wide character) counterparts. This change ensures proper handling of Unicode file paths and strings on Windows systems. ### File Operations (`source/core/slang-io.cpp`) - `DeleteFileA` → `DeleteFileW` - `GetTempPathA` → `GetTempPathW` - `GetTempFileNameA` → `GetTempFileNameW` - `RemoveDirectoryA` → `RemoveDirectoryW` - `SHFileOperationA` → `SHFileOperationW` - `GetModuleFileNameA` → `GetModuleFileNameW` with UTF-8 conversion ### Platform Operations (`source/core/slang-platform.cpp`) - `GetModuleHandleExA` → `GetModuleHandleExW` - `LoadLibraryExA` → `LoadLibraryExW` - `LoadLibraryA` → `LoadLibraryW` - `OutputDebugStringA` → `OutputDebugStringW` ### Runtime and Tools - `MessageBoxA` → `MessageBoxW` in slang-rt - `GetCurrentDirectoryA` → `GetCurrentDirectoryW` in slang-fiddle - String literal conversion to wide strings in vk-pipeline-create --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: Gangzheng Tong <gtong-nv@users.noreply.github.com> Co-authored-by: slangbot <ellieh+slangbot@nvidia.com> Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Add check for backtrace availability (#8329)Dario Mylonopoulos2025-09-06
| | | | | | | | | | | | | | The header execinfo.h and the related backtrace functionality is not available on all linux platforms. In particular it's missing on musl linux and on Android before API version 33. This causes compilation errors on those platforms. With this change, we first check if backtrace functionality is available by checking if we are using glibc or a compatible Android version. Tested on manylinux_2_28 with glibc 2.28 and musllinux_1_2 with musl 1.2, has not been tested on Android. Co-authored-by: Yong He <yonghe@outlook.com>
* Try both LoadLibrary functions on Windows (#8368)jarcherNV2025-09-05
| | | | If a given library cannot be found using LoadLibraryExA then try again using LoadLibraryA. Return an error only if both of these failed.
* Fix readlink missing include (#8260)TheGoldMonkey2025-08-22
| | | | | | | | | | | | | | | | | | | | On Linux, `slang-platform.cpp` compiles with libstdc++ only because `unistd.h` is being transitively included. It fails to compile with standard libraries that don't include `unistd.h` like libc++. This is the how it's being transitively included with libstdc++: ``` /home/mcvm/dev/slang/source/core/slang-platform.h /home/mcvm/dev/slang/source/core/../core/slang-string.h /home/mcvm/dev/slang/source/core/../core/slang-hash.h /home/mcvm/dev/slang/external/unordered_dense/include/ankerl/unordered_dense.h /usr/lib64/gcc/x86_64-unknown-linux-gnu/15.1.0/../../../../include/c++/15.1.0/memory /usr/lib64/gcc/x86_64-unknown-linux-gnu/15.1.0/../../../../include/c++/15.1.0/bits/shared_ptr_atomic.h /usr/lib64/gcc/x86_64-unknown-linux-gnu/15.1.0/../../../../include/c++/15.1.0/bits/atomic_base.h /usr/lib64/gcc/x86_64-unknown-linux-gnu/15.1.0/../../../../include/c++/15.1.0/bits/atomic_wait.h /usr/include/unistd.h ``` Tested building with `-stdlib=libc++` and `-stdlib=libstdc++`.
* Fix intrinsic LoadLocalRootTableConstant for optix (#7949)Harsh Aggarwal (NVIDIA)2025-08-07
| | | | | | | | | | | | 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. -
* Add utility to trace creation of problematic IRInsts to assist LLM in ↵Copilot2025-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Use LoadLibraryExA instead of LoadLibraryA (#7535)jarcherNV2025-06-26
| | | | Slangpy uses AddDllDirectory to specify locations of Slang DLL files. LoadLibraryA ignores this so instead use LoadLibraryExA.
* Correctly distinguish between windows and MSVC (#5851)Ellie Hermaszewska2024-12-13
| | | Partially sorts https://github.com/shader-slang/slang/issues/5843
* Move switch statement bodies to their own lines (#5493)Ellie Hermaszewska2024-11-05
| | | | | | | | | * Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
* formatEllie Hermaszewska2024-10-29
| | | | | | | * format * Minor test fixes * enable checking cpp format in ci
* Fix most of the disabled warnings on gcc/clang (#2839)Ellie Hermaszewska2023-04-26
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* StringBuilder to lowerCamel (#2840)jsmall-nvidia2023-04-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * #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>
* Dictionary using lowerCamel (#2835)jsmall-nvidia2023-04-25
| | | | | | | | | | | | | | | | | | | | | | | | | * #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.
* Changes for vkd3d proton (#2813)Ellie Hermaszewska2023-04-20
| | | | | | | | | | | | | | | | | | | | | | | | * 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
* Some small fixes with Windows/DX usage (#2797)Ellie Hermaszewska2023-04-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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
* Enable SLANG_ENABLE_DXIL_SUPPORT on non-Windows platforms (#2750)Ellie Hermaszewska2023-04-14
| | | | | | | | | | | | | | | | | * 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
* IMutableFileSystem::saveFileBlob (#2427)jsmall-nvidia2022-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * #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.
* Language server pointer type support + add `DLLImport` test (#2350)Yong He2022-08-10
| | | | | | | | | | | | | | | | | | | * 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>
* Enable swiftshader in linux CI builds (#1909)Yong He2021-07-19
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* Add Linux support to `platform` and `gfx`. (#1744)Yong He2021-03-11
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* Improved NVRTC location finding (#1674)jsmall-nvidia2021-01-26
| | | | | | | | | | | | | | | | | * #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.
* Support dynamic existential shader parameters in render-test (#1525)Yong He2020-09-01
| | | | | | | | | | | | | | | * Support dynamic existential shader parameters in render-test * Fix linux build error. * Fixes. * Fix code review issues. * Fix gcc error. * More fixes. * More fixes.
* Texture Sample available in CUDA (#1176)jsmall-nvidia2020-01-24
| | | | | | | | | | | | | | * 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.
* Ability to set Paths on Pass Through/Back End Compilers (#1010)jsmall-nvidia2019-08-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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.
* Feature/shared library review (#992)jsmall-nvidia2019-06-19
| | | | | | | * Added setNull to RefPtr Renamed combineBuilder into combineIntoBuilder * Added Path::append
* * Added Path::combineBuilder, so as two sub paths can be combined into a ↵jsmall-nvidia2019-06-18
| | | | | StringBuilder (#988) * Renamed and improved comments on SharedLibrary
* Runtime Shared Library compilation and testing (#985)jsmall-nvidia2019-06-14
| | | | | | | | | | | | | | | | | | | * 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.
* Use slang- prefix on slang compiler and core source (#973)jsmall-nvidia2019-05-31
* 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.
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