Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2025-08-01T09:18:53+00:00 2025-08-01T09:18:53+00:00 Harsh Aggarwal (NVIDIA) haaggarwal@nvidia.com 2025-08-01T09:18:53+00:00 urn:sha1:bdda8a90cdd44ca822b21233ac988f92d1f20826 * Fix 7441: CUDA boolean vector layout to use 1-byte elements Boolean vectors (bool1, bool2, bool3, bool4) were incorrectly implemented as integer-based types using 4 bytes per element instead of actual 1-byte boolean elements on CUDA targets. Changes: - Update CUDA prelude to define boolean vectors as structs with bool fields instead of typedef aliases to integer vectors - Implement CUDALayoutRulesImpl::GetVectorLayout to use 1-byte alignment for boolean vectors, matching actual CUDA memory layout behavior - Update make_bool functions to populate struct fields correctly This ensures boolean vectors have the same memory layout as bool[4] arrays: - bool1: 1 byte (was 4 bytes) - bool2: 2 bytes (was 8 bytes) - bool3: 3 bytes (was 12 bytes) - bool4: 4 bytes (was 16 bytes) Fixes memory layout mismatch between Slang reflection API and actual CUDA compilation, achieving 75% memory savings for boolean vector usage. * Fix CI issues - Add and update associated functions and operators * Make boolX same as uchar * Use align construct on struct for boolX * Improve Test case for robust alignment checks * Formatting * Disable selected slangpy tests * add metal check which is slightly different than cuda * Test-1 * Test-2 * Test-3 * Test-4 * ReflectionChange * cleanup and update * _slang_select with plain bool is needed for reverse-loop-checkpoint-test 2024-12-21T16:14:56+00:00 Stan 109335133+stanoddly@users.noreply.github.com 2024-12-21T16:14:56+00:00 urn:sha1:76fdeaa477a5d21176facf0296f77e28e2d59477 2021-06-10T18:57:09+00:00 jsmall-nvidia jsmall@nvidia.com 2021-06-10T18:57:09+00:00 urn:sha1:37e8917d10626b519470f2e34625f0efe741352f * #include an absolute path didn't work - because paths were taken to always be relative. * Add support for sizeOf/alignOf/offsetOf to stdlib. Add $G intrinsic expansion that works of the generic parameters not the param type * Test cuda layout. * Fix CUDA layout issues. Fix reflection to handle other built in types. Fix __offsetOf * Tests of reflection and layout as reported directly from CUDA. * Comment about use of aligned size as size. * Fix warning from VS. * Check alignment is pow2. * Small improvements to alignment calcs. * Tab to spaces. * Fix alignment pointer sizes on 32 bit OS for CUDA. * Fix CUDA reflection on 32 bit.