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HLSL: Add support for gl_HelperInvocation

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This commit is contained in:
Pedro J. Estébanez 2022-03-04 09:09:08 +01:00
parent 6c7a40822f
commit 278a4c80ed
1 changed files with 13 additions and 0 deletions
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13
spirv_hlsl.cpp
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@ -728,6 +728,11 @@ void CompilerHLSL::emit_builtin_inputs_in_struct()
// Handled specially.
break;
case BuiltInHelperInvocation:
if (hlsl_options.shader_model < 50 || (get_entry_point().model != ExecutionModelFragment && get_entry_point().model != ExecutionModelGLCompute))
SPIRV_CROSS_THROW("Helper Invocation input is only supported in PS 5.0 or higher.");
break;
case BuiltInClipDistance:
// HLSL is a bit weird here, use SV_ClipDistance0, SV_ClipDistance1 and so on with vectors.
for (uint32_t clip = 0; clip < clip_distance_count; clip += 4)
@ -984,6 +989,8 @@ std::string CompilerHLSL::builtin_to_glsl(spv::BuiltIn builtin, spv::StorageClas
return "WaveGetLaneIndex()";
case BuiltInSubgroupSize:
return "WaveGetLaneCount()";
case BuiltInHelperInvocation:
return "IsHelperLane()";
default:
return CompilerGLSL::builtin_to_glsl(builtin, storage);
@ -1103,6 +1110,11 @@ void CompilerHLSL::emit_builtin_variables()
type = "uint4";
break;
case BuiltInHelperInvocation:
if (hlsl_options.shader_model < 50)
SPIRV_CROSS_THROW("Need SM 5.0 for Helper Invocation.");
break;
case BuiltInClipDistance:
array_size = clip_distance_count;
type = "float";
@ -2521,6 +2533,7 @@ void CompilerHLSL::emit_hlsl_entry_point()
case BuiltInPointCoord:
case BuiltInSubgroupSize:
case BuiltInSubgroupLocalInvocationId:
case BuiltInHelperInvocation:
break;
case BuiltInSubgroupEqMask: