vkd3d-shader/hlsl: packoffset() support.
Support manually packing constant buffer elements through the packoffset(·)
syntax.
Support not included yet for simultaneously having semantics, register(·)
, and packoffset(·)
, for abnormalities such as:
Texture2D tex;
cbuffer buff
{
float4 a : packoffset(c0);
sampler sam : packoffset(c0) : register(s1) : SEMANTIC;
}
float4 main() : sv_target
{
return tex.Sample(sam, float2(0, 0)) + a;
}
but this motivated the addition of the hlsl_ir_var.offset_reservation
field instead of reusing hlsl_ir_var.reg_reservation
.
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