| Commit message (Collapse) | Author | Age |
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Fixes #94
We'd been handling HLSL `Buffer` and `RWBuffer` in a one-off fashion, and that led to a lot of code duplication, and also to the issue that we weren't handling `RasterizerOrderedBuffer` at all.
This change basically folds `Buffer` in so that it is conceptually a texture type (just with a unique shape). Hopefully all the other logic still works.
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Fixes #15
These are the modifiers like:
layout(local_size_x = 16) in;
Unlike the HLSL case, these don't get attache to the entry point function itself, so there is a bit more work involed in looking them up.
Just to make sure I didn't mess up the HLSL case, I went ahead and added two tests for this capability: one for GLSL and one for HLSL.
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Fixes #84
- When computing resource usage for an array type, don't multiply the resource usage of the element type by the element count foor descriptor-table-slot resources.
- When reporting the "stride" of an array type through reflection, report the stride for descriptor table slots as zero, always.
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- This really just checks two basic things:
1. Was there any global variable declared with `in` and `sample`?
2. Did any code encountered during lowering referenece `gl_SampleIndex`?
- This doesn't cover what HLSL could need, nor what we would need for cross-compilation. Consider it GLSL-specific for now.
- In order to generate the information with even a reasonable chance of being accurate (not giving a ton of false positives) I tried to integrate the checks into the lowering process (so they only see code that is referenced, one hopes).
- For this to work with my testing setup, I needed to make sure that lowering is always performed, prior to emitting reflection info
- This change broke several reflection tests, because they had been using code that wouldn't actually pass the downstream compiler. I checked in fixes for those.
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- This also adds reflection API for querying:
- Entry point name
- Entry point parameter list
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- Try to handle `ErrorType` gracefully when computing type layouts
- When outputting a `TypeExp`, if the type part is errorneous (or missing), try to use the expression part
- Make sure to lower the expressions side of a `TypeExp` during lowering
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- Expand most queries that handle `TextureType` to handle `TextureTypeBase`, in hopes that this covers most uses of `image*` types in Vulkan GLSL
- Adopt the quick fix from Falcor to return read-write access for shader-storage-block types. Something more comprehensive is probably needed if people want to do queries on these, since constant buffers should really be included, then.
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These are mostly copy-pasted from the existing `cbuffer` support, so there might be details I'm missing.
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This logic hadn't been updated for Vulkan GLSL.
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The code should now compile cleanly with warnings as errors for VS2015 with `W3`.
Most of the changes had to do with propagating a real pointer-sized integer type through code that had been using `int`.
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The lexer was creating an `unsigned long long` value, and then the AST was storing it in an `int`.
This change makes both use a `long long`.
This is obviously still a stopgap until I can get arbitrary precisions in here.
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For context: a `DeclRef` is supposed to capture both a pointer to a particualr declaration, and also any information needed to specialize that declaration for a context (e.g., generic parameter substitutions).
The existing approach had a hiearchy of specialized decl-ref types that mirrored the AST hierarchy, but that led to a lot of boilerplate where you had to recapitulate the exact same hierarchy.
The new appraoch basically treats `DeclRef<T>` as a sort of "smart pointer" in that it wraps a pointer to a `T` (the declaration), plus a side field for the specialization info, and then allows it to be cast as needed to other types (where the pointer cast would be allowed), while carrying along the side info.
To enable this, all the things that used to be member functions of declaration-reference types are now free functions that take a `DeclRef<T>` for some specific `T` as a parameter.
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This gets rid of one unecessary namespace.
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