27d6d45671
To support loading array of array properly in tessellation, we need a
rewrite of how tessellation access chains are handled.
The major change is to remove the implicit unflatten step inside
access_chain which does not take into account the case where you load
directly from a control point array variable.
We defer unflatten step until OpLoad time instead.
This fixes cases where we load array of {array,matrix,struct}.
Removes the hacky path for MSL access chain index workaround.
41 lines
1.4 KiB
GLSL
41 lines
1.4 KiB
GLSL
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Boo
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{
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float3 a;
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float3 b;
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};
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struct main0_out
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{
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Boo vVertex;
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};
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struct main0_in
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{
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float3 Boo_a [[attribute(0)]];
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float3 Boo_b [[attribute(1)]];
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};
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kernel void main0(main0_in in [[stage_in]], uint gl_InvocationID [[thread_index_in_threadgroup]], uint gl_PrimitiveID [[threadgroup_position_in_grid]], device main0_out* spvOut [[buffer(28)]], constant uint* spvIndirectParams [[buffer(29)]], device MTLQuadTessellationFactorsHalf* spvTessLevel [[buffer(26)]], threadgroup main0_in* gl_in [[threadgroup(0)]])
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{
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device main0_out* gl_out = &spvOut[gl_PrimitiveID * 4];
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if (gl_InvocationID < spvIndirectParams[0])
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gl_in[gl_InvocationID] = in;
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threadgroup_barrier(mem_flags::mem_threadgroup);
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if (gl_InvocationID >= 4)
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return;
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Boo _25 = { gl_in[gl_InvocationID].Boo_a, gl_in[gl_InvocationID].Boo_b };
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gl_out[gl_InvocationID].vVertex = _25;
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[0] = half(1.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[1] = half(2.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[2] = half(3.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[3] = half(4.0);
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spvTessLevel[gl_PrimitiveID].insideTessellationFactor[0] = half(1.0);
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spvTessLevel[gl_PrimitiveID].insideTessellationFactor[1] = half(2.0);
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}
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