AuroraMiddleware/skia2
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Implement compile-time optimization for step().

Browse Source 
$genType step($genType edge, $genType x);
$genType step(float edge, $genType x);
$genHType step($genHType edge, $genHType x);
$genHType step(half edge, $genHType x);

Change-Id: If52634d7a247772e922cb3fd2e3e8a7c36c275f6
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/411842
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
This commit is contained in:
John Stiles 2021-05-25 11:48:30 -04:00 committed by Skia Commit-Bot
parent 0727a80885
commit 017ffd7e05
6 changed files with 363 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
resources/sksl/intrinsics/Step.sksl
View File

@ -1 +1,26 @@
uniform half a, b; void main() { sk_FragColor.x = step(a, b); } uniform half4 testInputs;
uniform half4 colorGreen, colorRed;
half4 main(float2 coords) {
const half4 constVal = half4(-1.25, 0, 0.75, 2.25);
const half4 constGreen = half4(0, 1, 0, 1);
half4 expectedA = half4(0, 0, 1, 1);
half4 expectedB = half4(1, 1, 0, 0);
return (step(0.5, testInputs.x) == expectedA.x &&
step(0.5, testInputs.xy) == expectedA.xy &&
step(0.5, testInputs.xyz) == expectedA.xyz &&
step(0.5, testInputs.xyzw) == expectedA.xyzw &&
step(0.5, constVal.x) == expectedA.x &&
step(0.5, constVal.xy) == expectedA.xy &&
step(0.5, constVal.xyz) == expectedA.xyz &&
step(0.5, constVal.xyzw) == expectedA.xyzw &&
step(testInputs.x, constGreen.x) == expectedB.x &&
step(testInputs.xy, constGreen.xy) == expectedB.xy &&
step(testInputs.xyz, constGreen.xyz) == expectedB.xyz &&
step(testInputs.xyzw, constGreen.xyzw) == expectedB.xyzw &&
step(constVal.x, constGreen.x) == expectedB.x &&
step(constVal.xy, constGreen.xy) == expectedB.xy &&
step(constVal.xyz, constGreen.xyz) == expectedB.xyz &&
step(constVal.xyzw, constGreen.xyzw) == expectedB.xyzw) ? colorGreen : colorRed;
}

16
src/sksl/ir/SkSLFunctionCall.cpp
View File

@ -107,13 +107,18 @@ static std::unique_ptr<Expression> evaluate_n_way_intrinsic_of_type(
// eval(arg0.w, arg1.z, arg2.z), // eval(arg0.w, arg1.z, arg2.z),
// eval(arg0.z, arg1.w, arg2.w) // eval(arg0.z, arg1.w, arg2.w)
// //
// If an argument is null, zero is passed to the evaluation function. If arg1 or arg2 contains a // If an argument is null, zero is passed to the evaluation function. If the arguments are a mix
// scalar, it is interpreted as a vector containing the same value for every component. // of scalars and vectors, scalars are interpreted as a vector containing the same value for
// every component.
arg0 = ConstantFolder::GetConstantValueForVariable(*arg0); arg0 = ConstantFolder::GetConstantValueForVariable(*arg0);
SkASSERT(arg0); SkASSERT(arg0);
const Type& vecType = arg0->type();
const Type& vecType = arg0->type().isVector() ? arg0->type() :
(arg1 && arg1->type().isVector()) ? arg1->type() :
(arg2 && arg2->type().isVector()) ? arg2->type() :
arg0->type();
const Type& type = vecType.componentType(); const Type& type = vecType.componentType();
SkASSERT(arg0->type().componentType() == type);
if (arg1) { if (arg1) {
arg1 = ConstantFolder::GetConstantValueForVariable(*arg1); arg1 = ConstantFolder::GetConstantValueForVariable(*arg1);
@ -379,6 +384,9 @@ static std::unique_ptr<Expression> optimize_intrinsic_call(const Context& contex
case k_clamp_IntrinsicKind: case k_clamp_IntrinsicKind:
return evaluate_3_way_intrinsic(context, arguments, return evaluate_3_way_intrinsic(context, arguments,
[](auto x, auto l, auto h) { return (x < l) ? l : (x > h) ? h : x; }); [](auto x, auto l, auto h) { return (x < l) ? l : (x > h) ? h : x; });
case k_step_IntrinsicKind:
return evaluate_pairwise_intrinsic(context, arguments,
[](auto e, auto x) { return (x < e) ? 0 : 1; });
default: default:
return nullptr; return nullptr;
} }

1
tests/SkSLTest.cpp
View File

@ -217,6 +217,7 @@ SKSL_TEST(SkSLIntrinsicMinFloat, "intrinsics/MinFloat.sksl")
// skbug.com/11919: Fails on Adreno + Vulkan // skbug.com/11919: Fails on Adreno + Vulkan
SKSL_TEST_CPU(SkSLIntrinsicMixFloat, "intrinsics/MixFloat.sksl") SKSL_TEST_CPU(SkSLIntrinsicMixFloat, "intrinsics/MixFloat.sksl")
SKSL_TEST(SkSLIntrinsicSignFloat, "intrinsics/SignFloat.sksl") SKSL_TEST(SkSLIntrinsicSignFloat, "intrinsics/SignFloat.sksl")
SKSL_TEST(SkSLIntrinsicStep, "intrinsics/Step.sksl")
SKSL_TEST_ES3(SkSLArrayComparison, "shared/ArrayComparison.sksl") SKSL_TEST_ES3(SkSLArrayComparison, "shared/ArrayComparison.sksl")
SKSL_TEST_ES3(SkSLArrayConstructors, "shared/ArrayConstructors.sksl") SKSL_TEST_ES3(SkSLArrayConstructors, "shared/ArrayConstructors.sksl")

329
tests/sksl/intrinsics/Step.asm.frag
View File

@ -1,27 +1,92 @@
OpCapability Shader OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450" %1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450 OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %sk_FragColor %sk_Clockwise OpEntryPoint Fragment %_entrypoint_v "_entrypoint" %sk_FragColor %sk_Clockwise
OpExecutionMode %main OriginUpperLeft OpExecutionMode %_entrypoint_v OriginUpperLeft
OpName %sk_FragColor "sk_FragColor" OpName %sk_FragColor "sk_FragColor"
OpName %sk_Clockwise "sk_Clockwise" OpName %sk_Clockwise "sk_Clockwise"
OpName %_UniformBuffer "_UniformBuffer" OpName %_UniformBuffer "_UniformBuffer"
OpMemberName %_UniformBuffer 0 "a" OpMemberName %_UniformBuffer 0 "testInputs"
OpMemberName %_UniformBuffer 1 "b" OpMemberName %_UniformBuffer 1 "colorGreen"
OpMemberName %_UniformBuffer 2 "colorRed"
OpName %_entrypoint_v "_entrypoint_v"
OpName %main "main" OpName %main "main"
OpName %constGreen "constGreen"
OpName %expectedA "expectedA"
OpName %expectedB "expectedB"
OpDecorate %sk_FragColor RelaxedPrecision OpDecorate %sk_FragColor RelaxedPrecision
OpDecorate %sk_FragColor Location 0 OpDecorate %sk_FragColor Location 0
OpDecorate %sk_FragColor Index 0 OpDecorate %sk_FragColor Index 0
OpDecorate %sk_Clockwise BuiltIn FrontFacing OpDecorate %sk_Clockwise BuiltIn FrontFacing
OpMemberDecorate %_UniformBuffer 0 Offset 0 OpMemberDecorate %_UniformBuffer 0 Offset 0
OpMemberDecorate %_UniformBuffer 0 RelaxedPrecision OpMemberDecorate %_UniformBuffer 0 RelaxedPrecision
OpMemberDecorate %_UniformBuffer 1 Offset 4 OpMemberDecorate %_UniformBuffer 1 Offset 16
OpMemberDecorate %_UniformBuffer 1 RelaxedPrecision OpMemberDecorate %_UniformBuffer 1 RelaxedPrecision
OpMemberDecorate %_UniformBuffer 2 Offset 32
OpMemberDecorate %_UniformBuffer 2 RelaxedPrecision
OpDecorate %_UniformBuffer Block OpDecorate %_UniformBuffer Block
OpDecorate %10 Binding 0 OpDecorate %10 Binding 0
OpDecorate %10 DescriptorSet 0 OpDecorate %10 DescriptorSet 0
OpDecorate %21 RelaxedPrecision OpDecorate %constGreen RelaxedPrecision
OpDecorate %24 RelaxedPrecision OpDecorate %29 RelaxedPrecision
OpDecorate %expectedA RelaxedPrecision
OpDecorate %31 RelaxedPrecision
OpDecorate %expectedB RelaxedPrecision
OpDecorate %33 RelaxedPrecision
OpDecorate %41 RelaxedPrecision
OpDecorate %42 RelaxedPrecision
OpDecorate %43 RelaxedPrecision
OpDecorate %44 RelaxedPrecision
OpDecorate %49 RelaxedPrecision
OpDecorate %51 RelaxedPrecision
OpDecorate %52 RelaxedPrecision
OpDecorate %53 RelaxedPrecision
OpDecorate %54 RelaxedPrecision
OpDecorate %62 RelaxedPrecision
OpDecorate %65 RelaxedPrecision
OpDecorate %66 RelaxedPrecision
OpDecorate %67 RelaxedPrecision
OpDecorate %68 RelaxedPrecision
OpDecorate %76 RelaxedPrecision
OpDecorate %78 RelaxedPrecision
OpDecorate %79 RelaxedPrecision
OpDecorate %86 RelaxedPrecision
OpDecorate %87 RelaxedPrecision
OpDecorate %92 RelaxedPrecision
OpDecorate %93 RelaxedPrecision
OpDecorate %99 RelaxedPrecision
OpDecorate %100 RelaxedPrecision
OpDecorate %101 RelaxedPrecision
OpDecorate %107 RelaxedPrecision
OpDecorate %115 RelaxedPrecision
OpDecorate %116 RelaxedPrecision
OpDecorate %117 RelaxedPrecision
OpDecorate %118 RelaxedPrecision
OpDecorate %125 RelaxedPrecision
OpDecorate %126 RelaxedPrecision
OpDecorate %127 RelaxedPrecision
OpDecorate %128 RelaxedPrecision
OpDecorate %129 RelaxedPrecision
OpDecorate %137 RelaxedPrecision
OpDecorate %138 RelaxedPrecision
OpDecorate %139 RelaxedPrecision
OpDecorate %140 RelaxedPrecision
OpDecorate %141 RelaxedPrecision
OpDecorate %149 RelaxedPrecision
OpDecorate %150 RelaxedPrecision
OpDecorate %151 RelaxedPrecision
OpDecorate %157 RelaxedPrecision
OpDecorate %158 RelaxedPrecision
OpDecorate %163 RelaxedPrecision
OpDecorate %164 RelaxedPrecision
OpDecorate %165 RelaxedPrecision
OpDecorate %171 RelaxedPrecision
OpDecorate %172 RelaxedPrecision
OpDecorate %173 RelaxedPrecision
OpDecorate %179 RelaxedPrecision
OpDecorate %189 RelaxedPrecision
OpDecorate %192 RelaxedPrecision
OpDecorate %193 RelaxedPrecision
%float = OpTypeFloat 32 %float = OpTypeFloat 32
%v4float = OpTypeVector %float 4 %v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float %_ptr_Output_v4float = OpTypePointer Output %v4float
@ -29,24 +94,248 @@ OpDecorate %24 RelaxedPrecision
%bool = OpTypeBool %bool = OpTypeBool
%_ptr_Input_bool = OpTypePointer Input %bool %_ptr_Input_bool = OpTypePointer Input %bool
%sk_Clockwise = OpVariable %_ptr_Input_bool Input %sk_Clockwise = OpVariable %_ptr_Input_bool Input
%_UniformBuffer = OpTypeStruct %float %float %_UniformBuffer = OpTypeStruct %v4float %v4float %v4float
%_ptr_Uniform__UniformBuffer = OpTypePointer Uniform %_UniformBuffer %_ptr_Uniform__UniformBuffer = OpTypePointer Uniform %_UniformBuffer
%10 = OpVariable %_ptr_Uniform__UniformBuffer Uniform %10 = OpVariable %_ptr_Uniform__UniformBuffer Uniform
%void = OpTypeVoid %void = OpTypeVoid
%14 = OpTypeFunction %void %15 = OpTypeFunction %void
%_ptr_Uniform_float = OpTypePointer Uniform %float %v2float = OpTypeVector %float 2
%float_0 = OpConstant %float 0
%19 = OpConstantComposite %v2float %float_0 %float_0
%_ptr_Function_v2float = OpTypePointer Function %v2float
%23 = OpTypeFunction %v4float %_ptr_Function_v2float
%_ptr_Function_v4float = OpTypePointer Function %v4float
%float_1 = OpConstant %float 1
%29 = OpConstantComposite %v4float %float_0 %float_1 %float_0 %float_1
%31 = OpConstantComposite %v4float %float_0 %float_0 %float_1 %float_1
%33 = OpConstantComposite %v4float %float_1 %float_1 %float_0 %float_0
%false = OpConstantFalse %bool
%float_0_5 = OpConstant %float 0.5
%_ptr_Uniform_v4float = OpTypePointer Uniform %v4float
%int = OpTypeInt 32 1 %int = OpTypeInt 32 1
%int_0 = OpConstant %int 0 %int_0 = OpConstant %int 0
%v2bool = OpTypeVector %bool 2
%v3float = OpTypeVector %float 3
%v3bool = OpTypeVector %bool 3
%v4bool = OpTypeVector %bool 4
%99 = OpConstantComposite %v3float %float_0 %float_0 %float_1
%127 = OpConstantComposite %v2float %float_0 %float_1
%139 = OpConstantComposite %v3float %float_0 %float_1 %float_0
%163 = OpConstantComposite %v2float %float_1 %float_1
%171 = OpConstantComposite %v3float %float_1 %float_1 %float_0
%int_1 = OpConstant %int 1 %int_1 = OpConstant %int 1
%_ptr_Output_float = OpTypePointer Output %float %int_2 = OpConstant %int 2
%main = OpFunction %void None %14 %_entrypoint_v = OpFunction %void None %15
%15 = OpLabel %16 = OpLabel
%17 = OpAccessChain %_ptr_Uniform_float %10 %int_0 %20 = OpVariable %_ptr_Function_v2float Function
%21 = OpLoad %float %17 OpStore %20 %19
%22 = OpAccessChain %_ptr_Uniform_float %10 %int_1 %22 = OpFunctionCall %v4float %main %20
%24 = OpLoad %float %22 OpStore %sk_FragColor %22
%16 = OpExtInst %float %1 Step %21 %24
%25 = OpAccessChain %_ptr_Output_float %sk_FragColor %int_0
OpStore %25 %16
OpReturn OpReturn
OpFunctionEnd OpFunctionEnd
%main = OpFunction %v4float None %23
%24 = OpFunctionParameter %_ptr_Function_v2float
%25 = OpLabel
%constGreen = OpVariable %_ptr_Function_v4float Function
%expectedA = OpVariable %_ptr_Function_v4float Function
%expectedB = OpVariable %_ptr_Function_v4float Function
%183 = OpVariable %_ptr_Function_v4float Function
OpStore %constGreen %29
OpStore %expectedA %31
OpStore %expectedB %33
%37 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%41 = OpLoad %v4float %37
%42 = OpCompositeExtract %float %41 0
%35 = OpExtInst %float %1 Step %float_0_5 %42
%43 = OpLoad %v4float %expectedA
%44 = OpCompositeExtract %float %43 0
%45 = OpFOrdEqual %bool %35 %44
OpSelectionMerge %47 None
OpBranchConditional %45 %46 %47
%46 = OpLabel
%49 = OpCompositeConstruct %v2float %float_0_5 %float_0_5
%50 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%51 = OpLoad %v4float %50
%52 = OpVectorShuffle %v2float %51 %51 0 1
%48 = OpExtInst %v2float %1 Step %49 %52
%53 = OpLoad %v4float %expectedA
%54 = OpVectorShuffle %v2float %53 %53 0 1
%55 = OpFOrdEqual %v2bool %48 %54
%57 = OpAll %bool %55
OpBranch %47
%47 = OpLabel
%58 = OpPhi %bool %false %25 %57 %46
OpSelectionMerge %60 None
OpBranchConditional %58 %59 %60
%59 = OpLabel
%62 = OpCompositeConstruct %v3float %float_0_5 %float_0_5 %float_0_5
%64 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%65 = OpLoad %v4float %64
%66 = OpVectorShuffle %v3float %65 %65 0 1 2
%61 = OpExtInst %v3float %1 Step %62 %66
%67 = OpLoad %v4float %expectedA
%68 = OpVectorShuffle %v3float %67 %67 0 1 2
%69 = OpFOrdEqual %v3bool %61 %68
%71 = OpAll %bool %69
OpBranch %60
%60 = OpLabel
%72 = OpPhi %bool %false %47 %71 %59
OpSelectionMerge %74 None
OpBranchConditional %72 %73 %74
%73 = OpLabel
%76 = OpCompositeConstruct %v4float %float_0_5 %float_0_5 %float_0_5 %float_0_5
%77 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%78 = OpLoad %v4float %77
%75 = OpExtInst %v4float %1 Step %76 %78
%79 = OpLoad %v4float %expectedA
%80 = OpFOrdEqual %v4bool %75 %79
%82 = OpAll %bool %80
OpBranch %74
%74 = OpLabel
%83 = OpPhi %bool %false %60 %82 %73
OpSelectionMerge %85 None
OpBranchConditional %83 %84 %85
%84 = OpLabel
%86 = OpLoad %v4float %expectedA
%87 = OpCompositeExtract %float %86 0
%88 = OpFOrdEqual %bool %float_0 %87
OpBranch %85
%85 = OpLabel
%89 = OpPhi %bool %false %74 %88 %84
OpSelectionMerge %91 None
OpBranchConditional %89 %90 %91
%90 = OpLabel
%92 = OpLoad %v4float %expectedA
%93 = OpVectorShuffle %v2float %92 %92 0 1
%94 = OpFOrdEqual %v2bool %19 %93
%95 = OpAll %bool %94
OpBranch %91
%91 = OpLabel
%96 = OpPhi %bool %false %85 %95 %90
OpSelectionMerge %98 None
OpBranchConditional %96 %97 %98
%97 = OpLabel
%100 = OpLoad %v4float %expectedA
%101 = OpVectorShuffle %v3float %100 %100 0 1 2
%102 = OpFOrdEqual %v3bool %99 %101
%103 = OpAll %bool %102
OpBranch %98
%98 = OpLabel
%104 = OpPhi %bool %false %91 %103 %97
OpSelectionMerge %106 None
OpBranchConditional %104 %105 %106
%105 = OpLabel
%107 = OpLoad %v4float %expectedA
%108 = OpFOrdEqual %v4bool %31 %107
%109 = OpAll %bool %108
OpBranch %106
%106 = OpLabel
%110 = OpPhi %bool %false %98 %109 %105
OpSelectionMerge %112 None
OpBranchConditional %110 %111 %112
%111 = OpLabel
%114 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%115 = OpLoad %v4float %114
%116 = OpCompositeExtract %float %115 0
%113 = OpExtInst %float %1 Step %116 %float_0
%117 = OpLoad %v4float %expectedB
%118 = OpCompositeExtract %float %117 0
%119 = OpFOrdEqual %bool %113 %118
OpBranch %112
%112 = OpLabel
%120 = OpPhi %bool %false %106 %119 %111
OpSelectionMerge %122 None
OpBranchConditional %120 %121 %122
%121 = OpLabel
%124 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%125 = OpLoad %v4float %124
%126 = OpVectorShuffle %v2float %125 %125 0 1
%123 = OpExtInst %v2float %1 Step %126 %127
%128 = OpLoad %v4float %expectedB
%129 = OpVectorShuffle %v2float %128 %128 0 1
%130 = OpFOrdEqual %v2bool %123 %129
%131 = OpAll %bool %130
OpBranch %122
%122 = OpLabel
%132 = OpPhi %bool %false %112 %131 %121
OpSelectionMerge %134 None
OpBranchConditional %132 %133 %134
%133 = OpLabel
%136 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%137 = OpLoad %v4float %136
%138 = OpVectorShuffle %v3float %137 %137 0 1 2
%135 = OpExtInst %v3float %1 Step %138 %139
%140 = OpLoad %v4float %expectedB
%141 = OpVectorShuffle %v3float %140 %140 0 1 2
%142 = OpFOrdEqual %v3bool %135 %141
%143 = OpAll %bool %142
OpBranch %134
%134 = OpLabel
%144 = OpPhi %bool %false %122 %143 %133
OpSelectionMerge %146 None
OpBranchConditional %144 %145 %146
%145 = OpLabel
%148 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
%149 = OpLoad %v4float %148
%150 = OpLoad %v4float %constGreen
%147 = OpExtInst %v4float %1 Step %149 %150
%151 = OpLoad %v4float %expectedB
%152 = OpFOrdEqual %v4bool %147 %151
%153 = OpAll %bool %152
OpBranch %146
%146 = OpLabel
%154 = OpPhi %bool %false %134 %153 %145
OpSelectionMerge %156 None
OpBranchConditional %154 %155 %156
%155 = OpLabel
%157 = OpLoad %v4float %expectedB
%158 = OpCompositeExtract %float %157 0
%159 = OpFOrdEqual %bool %float_1 %158
OpBranch %156
%156 = OpLabel
%160 = OpPhi %bool %false %146 %159 %155
OpSelectionMerge %162 None
OpBranchConditional %160 %161 %162
%161 = OpLabel
%164 = OpLoad %v4float %expectedB
%165 = OpVectorShuffle %v2float %164 %164 0 1
%166 = OpFOrdEqual %v2bool %163 %165
%167 = OpAll %bool %166
OpBranch %162
%162 = OpLabel
%168 = OpPhi %bool %false %156 %167 %161
OpSelectionMerge %170 None
OpBranchConditional %168 %169 %170
%169 = OpLabel
%172 = OpLoad %v4float %expectedB
%173 = OpVectorShuffle %v3float %172 %172 0 1 2
%174 = OpFOrdEqual %v3bool %171 %173
%175 = OpAll %bool %174
OpBranch %170
%170 = OpLabel
%176 = OpPhi %bool %false %162 %175 %169
OpSelectionMerge %178 None
OpBranchConditional %176 %177 %178
%177 = OpLabel
%179 = OpLoad %v4float %expectedB
%180 = OpFOrdEqual %v4bool %33 %179
%181 = OpAll %bool %180
OpBranch %178
%178 = OpLabel
%182 = OpPhi %bool %false %170 %181 %177
OpSelectionMerge %186 None
OpBranchConditional %182 %184 %185
%184 = OpLabel
%187 = OpAccessChain %_ptr_Uniform_v4float %10 %int_1
%189 = OpLoad %v4float %187
OpStore %183 %189
OpBranch %186
%185 = OpLabel
%190 = OpAccessChain %_ptr_Uniform_v4float %10 %int_2
%192 = OpLoad %v4float %190
OpStore %183 %192
OpBranch %186
%186 = OpLabel
%193 = OpLoad %v4float %183
OpReturnValue %193
OpFunctionEnd

12
tests/sksl/intrinsics/Step.glsl
View File

@ -1,7 +1,11 @@
out vec4 sk_FragColor; out vec4 sk_FragColor;
uniform float a; uniform vec4 testInputs;
uniform float b; uniform vec4 colorGreen;
void main() { uniform vec4 colorRed;
sk_FragColor.x = step(a, b); vec4 main() {
const vec4 constGreen = vec4(0.0, 1.0, 0.0, 1.0);
vec4 expectedA = vec4(0.0, 0.0, 1.0, 1.0);
vec4 expectedB = vec4(1.0, 1.0, 0.0, 0.0);
return ((((((((((((((step(0.5, testInputs.x) == expectedA.x && step(0.5, testInputs.xy) == expectedA.xy) && step(0.5, testInputs.xyz) == expectedA.xyz) && step(0.5, testInputs) == expectedA) && 0.0 == expectedA.x) && vec2(0.0, 0.0) == expectedA.xy) && vec3(0.0, 0.0, 1.0) == expectedA.xyz) && vec4(0.0, 0.0, 1.0, 1.0) == expectedA) && step(testInputs.x, 0.0) == expectedB.x) && step(testInputs.xy, vec2(0.0, 1.0)) == expectedB.xy) && step(testInputs.xyz, vec3(0.0, 1.0, 0.0)) == expectedB.xyz) && step(testInputs, constGreen) == expectedB) && 1.0 == expectedB.x) && vec2(1.0, 1.0) == expectedB.xy) && vec3(1.0, 1.0, 0.0) == expectedB.xyz) && vec4(1.0, 1.0, 0.0, 0.0) == expectedB ? colorGreen : colorRed;
} }

10
tests/sksl/intrinsics/Step.metal
View File

@ -2,8 +2,9 @@
#include <simd/simd.h> #include <simd/simd.h>
using namespace metal; using namespace metal;
struct Uniforms { struct Uniforms {
float a; float4 testInputs;
float b; float4 colorGreen;
float4 colorRed;
}; };
struct Inputs { struct Inputs {
}; };
@ -13,6 +14,9 @@ struct Outputs {
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out; Outputs _out;
(void)_out; (void)_out;
_out.sk_FragColor.x = step(_uniforms.a, _uniforms.b); const float4 constGreen = float4(0.0, 1.0, 0.0, 1.0);
float4 expectedA = float4(0.0, 0.0, 1.0, 1.0);
float4 expectedB = float4(1.0, 1.0, 0.0, 0.0);
_out.sk_FragColor = ((((((((((((((step(0.5, _uniforms.testInputs.x) == expectedA.x && all(step(0.5, _uniforms.testInputs.xy) == expectedA.xy)) && all(step(0.5, _uniforms.testInputs.xyz) == expectedA.xyz)) && all(step(0.5, _uniforms.testInputs) == expectedA)) && 0.0 == expectedA.x) && all(float2(0.0, 0.0) == expectedA.xy)) && all(float3(0.0, 0.0, 1.0) == expectedA.xyz)) && all(float4(0.0, 0.0, 1.0, 1.0) == expectedA)) && step(_uniforms.testInputs.x, 0.0) == expectedB.x) && all(step(_uniforms.testInputs.xy, float2(0.0, 1.0)) == expectedB.xy)) && all(step(_uniforms.testInputs.xyz, float3(0.0, 1.0, 0.0)) == expectedB.xyz)) && all(step(_uniforms.testInputs, constGreen) == expectedB)) && 1.0 == expectedB.x) && all(float2(1.0, 1.0) == expectedB.xy)) && all(float3(1.0, 1.0, 0.0) == expectedB.xyz)) && all(float4(1.0, 1.0, 0.0, 0.0) == expectedB) ? _uniforms.colorGreen : _uniforms.colorRed;
return _out; return _out;
} }