mmoult / spirv-interpreter Goto Github PK

If we want to be spec compliant as we say, we should allow for recursion. Data must exist in the data array, not any stack frame, but we can have a list of ids in the stack frame which can be popped off at the OpReturn. We can also have a Stacked Data type which holds the bottom Data and the top Data (at the return, we pop off the top data and replace the Stacked with its bottom).

This will take some refactoring, but should be fairly straightforward.

The SPIR-V generator for HLSL is bound to produce different SPIR-V examples than glslang. It would be good for the sake of variety to include some HLSL-derived examples.

Investigate possible bugs in format (YAML, JSON) parsing and printing. I suspect there may be some issues with parsing after comments, but I don't have any test cases (which is part of the problem).

Add test cases formally in the test directory.

I found a couple similar repositories:

• https://github.com/dfranx/SPIRV-VM
• https://github.com/keith2018/spvm

Neither have been updated in the last year, but I should probably check out their capabilities to see how to differentiate and justify this project.

For some compute shaders, multiple invocations may be run. The debugger goes through each and dutifully stops on each invocation when a breakpoint is set.

Add functionality to specify which invocations are relevant.

Compute shaders may need multiple invocations. It would be best to handle these in parallel which would make barriers much simpler. The difficult part will be diverging control flow and handling multiple data arrays.

Compute shaders should still have 1 input and 1 output despite running multiple invocations. No plans to implement multiple invocations of fragment or vertex shaders since it wouldn't save much work (only parsing of the program I think).

Support for FP64 (double) and FP16 (half) for example. Probably should use some kind of use mask in the copyFrom method. Also, need to bump primitive values up (for example, data.fp32 -> data.fp64).