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//TEST:SIMPLE(filecheck=GLSL):-target glsl -entry hullMain -stage hull -allow-glsl
//TEST:SIMPLE(filecheck=SPIRV):-target spirv -entry hullMain -stage hull -allow-glsl
// When targeting SPIRV, the tessellation factors should be an array with size 4 or 2.
// GLSL: gl_TessLevelOuter[3] = 0.0;
// GLSL: gl_TessLevelInner[1] = 0.0;
// SPIRV: OpDecorate %gl_TessLevelOuter BuiltIn TessLevelOuter
// SPIRV: OpDecorate %gl_TessLevelInner BuiltIn TessLevelInner
// SPIRV-DAG: OpStore %gl_TessLevelOuter %[[OuterOpCompositeConstruct:[1-9][0-9]*]]
// SPIRV-DAG: %[[OuterOpCompositeConstruct]] = OpCompositeConstruct %[[OuterOpTypeArray:[a-zA-Z_0-9]*]]
// SPIRV-DAG: %[[OuterOpTypeArray]] = OpTypeArray %{{[^ ]*}} %[[OuterOpConstant:[a-zA-Z_0-9]*]]
// SPIRV-DAG: %[[OuterOpConstant]] = OpConstant %{{[^ ]*}} 4
// SPIRV-DAG: OpStore %gl_TessLevelInner %[[InnerOpCompositeConstruct:[1-9][0-9]*]]
// SPIRV-DAG: %[[InnerOpCompositeConstruct]] = OpCompositeConstruct %[[InnerOpTypeArray:[a-zA-Z_0-9]*]]
// SPIRV-DAG: %[[InnerOpTypeArray]] = OpTypeArray %{{[^ ]*}} %[[InnerOpConstant:[a-zA-Z_0-9]*]]
// SPIRV-DAG: %[[InnerOpConstant]] = OpConstant %{{[^ ]*}} 2
struct HsOut
{
float2 pos;
float2 hm;
};
struct HscOut
{
float EdgeTessFactor[3] : SV_TessFactor; // Should be legalized to float[4]
float InsideTessFactor[1] : SV_InsideTessFactor; // Should be legalized to float[2]
};
[domain("tri")]
[partitioning("integer")]
[outputtopology("triangle_ccw")]
[outputcontrolpoints(4)]
[patchconstantfunc("constants")]
HsOut hullMain()
{
HsOut o;
o.pos = 1;
o.hm = 2;
return o;
}
HscOut constants()
{
HscOut o;
o.EdgeTessFactor[0] = 1;
o.EdgeTessFactor[1] = 2;
o.EdgeTessFactor[2] = 3;
o.InsideTessFactor[0] = 0.5;
return o;
}
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