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* Remove support for explicit register/binding syntax on TEST_INPUT (#1132)Tim Foley2019-11-21
| | | | | | | | | | | | | | | | | | | | The `TEST_INPUT` facility allows textual Slang test cases to provide two kinds of information to the `render-test` tool: 1. Information on what shader inputs exist 2. Information on what values/objects to bind into those shader inputs Under the first category of information, there exists supporting for attaching a `dxbinding(...)` annotation to a `TEST_INPUT` which seemingly indicates what HLSL `register` the input uses. There is a similar `glbinding(...)` annotation, used for OpenGL and Vulkan. It turns out that these annotations were, in practice, completely ignored and had no bearing on how `render-test` allocates or bindings graphics API objects. There was some amount of code attempting to validate that explicit registers/bindings were being set appropriately, but the actual values were being ignored. The visible consequence of the `dxbinding` and `glbinding` annotations being ignored is issue #1036: the order of `TEST_INPUT` lines was *de facto* determining the registers/bindings that were being used by `render-test`. This change simply removes the placebo features and strips things down to what is implemented in practice: the `TEST_INPUT` lines do not need target-API-specific binding/register numbers, because their order in the file implicitly defines them. I added logic to the parsing of `TEST_INPUT` lines to make sure I got an error message on any leftover annotations, and went ahead and systematicaly deleted all of the placebo annotations from our test cases. If we decide to make `TEST_INPUT` lines *not* depend on order of declaration in the future, we can build it up as a new and better considered feature. The main alternative I considered was to keep the annotations in place, and change `render-test` and the `gfx` abstraction layer to properly respect them, but that path actually creates much more opportunity for breakage (since every single test case would suddenly be specifying its root signature / pipeline layout via a different path using data that has never been tested). The approach in this change has the benefit of giving me high confidence that all the test cases continue to work just as they had before.
* User defined downstream compiler prelude (#1028)jsmall-nvidia2019-08-20
| | | | | | | | | | | | | | | | | * Added setDownstreamCompilerPrelude Renamed setPassThroughPath to setDownstreamCompilerPath. Fixed tests. Added prelude directory & code to TestToolUtil to setup default preludes for testing/command line apis. * Fix merge problem * Remove hacks to make prelude work by adding a search path as no longer needed with 'user prelude'. * Split up prelude into scalar intrinsics, and types. Use slang.h for main header. slang-cpp-prelude.h can now just include what it needs (relative to prelude directory) and define the few remaining things/work arounds. * Fix typo.
* WIP: Preliminary Slang -> C++ code generation (#1009)jsmall-nvidia2019-08-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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. * Better handling of swizzling - allow swizzling a scalar into a vector.
* WIP: slang to C++ code generation (#997)jsmall-nvidia2019-07-09
* WIP: Emitting Cpp * Added HLSLType instead of using IRInst - because they don't seem to be deduped. * Removed need for lexer to take a String. Added mechansim to lookup intrinsic functions on C++. * A c/c++ cross compilation test. * WIP Cpp output using cloning and slang types. * More work to generate mul funcs. * WIP: Outputting some simple C++. * Expose findOrEmitHoistableInst to IRBuilder to aid cloning, * Simplification for checking for BasicTypes. Test infrastructure compiles output C++ code. * Dot and mat/vec multiplication output. * First pass at swizzling. * First support for binary ops. * Builtin binary and unary functions. * Any and all. * WIP adding support for other functions. Added code to generate function signature. * Add scalar functions to slang-cpp-prelude.h * Support for most built in operations. * Tested first ternary. * Checking the emitting of corner cases functions - normalize, length, any, all, normalize, reflect. * Check asfloat etc work. * Fmod support. * WIP Array handling in C++. * First stage in being able to handl arbitrary type output for CLikeSourceEmitter * Removed Handler/Emitter split - so can implement more easily complex type naming. * Array passing by value first pass. * Rename Array -> FixedArray * Outputs structs in C++. * Emit the thread config. * Dimension -> TypeDimension * SpecializedOperation -> SpecializedIntrinsic Operation -> IntrinsicOp Use shared impl of isNominalOp Commented use of m_uniqueModule etc. * Add code to test slang->cpp when compiled doesn't have errors. Does so by building shared library and exporting the entry point. * Fix linux clang/gcc compile error about override not being specified. * Make sure c-cross-compile is run on linux targets/smoke. * Remove c-cross-compile.slang from smoke. * Fix running tests/cross-compile/c-cross-compile.slang on Ubuntu 16.04 * Only add -std=c++11 for C++ source.