glslang/Test/hlsl.imagefetch-subvec4.comp

Texture3D<int> IN: register(t0);
RWTexture3D<uint> OUT: register(u1);

[numthreads(8,8,8)]
void main(uint3 tid: SV_DispatchThreadID)
{
    OUT[tid] = IN[tid];
}
HLSL: Add conversions for image ops during SPV construction HLSL allows image and texture types to be templatized on sub-vec4 types, or even structures. This was mostly handled already during creation of sampling operations. However, for operator[] which can generate image loads, this wasn't happening. It also isn't very easy to do at that point in time, because operator[] does not know where the results it produces will end up. They may be an lvalue or an rvalue, and there's a post-process to convert loads to stores. They may end up in atomic ops. To bypass that difficulty, GlslangToSpv now looks for this case and adds the appropriate conversion. LIMITATION: this only works for cases for which a simple conversion opcode suffices. That is to say, it will not work if the type is templatized on a struct. 2018-02-18 18:40:01 +00:00			`Texture3D<int> IN: register(t0);`
			`RWTexture3D<uint> OUT: register(u1);`

			`[numthreads(8,8,8)]`
			`void main(uint3 tid: SV_DispatchThreadID)`
			`{`
			`OUT[tid] = IN[tid];`
			`}`