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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.
* Fix problems with x86 CPU tests (#1051)jsmall-nvidia2019-09-12
| | | | | | | | | | | | | | | | | | * Try to make x86 builds on x86 platforms (not the default for the os). * Use c style include for stdint.h cos not found on x86 linux. * Simplified x86 issue for linux. * Fix typo. * Remove the need for the shared-library category. * Disable CPU tests on linux x86. * Fix typo. * Named test requirement methods so overloading not confusing (around flags, and SlangPassThroughType which are both 'int')
* Callable CPU code support (#1014)jsmall-nvidia2019-08-12
| | | | | | | | | | | | | | | | | | | | | * First pass support for compiling to a loaded shared library. * Improve documentation for cpu target. * Removed the SLANG_COMPILE_FLAG_LOAD_SHARED_LIBRARY flag. Use the SLANG_HOST_CALLABLE code target Document mechanism. * Fix typo in cpp-resource.slang In test code if the target is 'callable' we don't need to compile (indeed there is no source file). * Small refactor using CommandLineCPPCompiler as base class to implement VisualStudioCPPCompiler and GCCCPPCompiler. * Improvements around CPPCompiler. Mechanism to know products produced. Cleaning up products after execution. * Fix multiple definition of 'SourceType'
* 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.