xref: /aosp_15_r20/external/skia/resources/sksl/intrinsics/Length.sksl (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Workeruniform float4 testMatrix2x2; // = {1, 2, 3, 4}
2*c8dee2aaSAndroid Build Coastguard Workeruniform half4 colorGreen, colorRed;
3*c8dee2aaSAndroid Build Coastguard Worker
4*c8dee2aaSAndroid Build Coastguard Workerhalf4 main(float2 coords) {
5*c8dee2aaSAndroid Build Coastguard Worker    float4       inputVal = float4(testMatrix2x2) + float4(2, -2, 1, 8); // = {3, 0, 4, 12}
6*c8dee2aaSAndroid Build Coastguard Worker    const float4 constVal = half4(3, 0, 4, 12);
7*c8dee2aaSAndroid Build Coastguard Worker    float4       expected = half4(3, 3, 5, 13);
8*c8dee2aaSAndroid Build Coastguard Worker    const float  allowedDelta = 0.05;
9*c8dee2aaSAndroid Build Coastguard Worker
10*c8dee2aaSAndroid Build Coastguard Worker    return abs(length(inputVal.x)    - expected.x) < allowedDelta &&
11*c8dee2aaSAndroid Build Coastguard Worker           abs(length(inputVal.xy)   - expected.y) < allowedDelta &&
12*c8dee2aaSAndroid Build Coastguard Worker           abs(length(inputVal.xyz)  - expected.z) < allowedDelta &&
13*c8dee2aaSAndroid Build Coastguard Worker           abs(length(inputVal.xyzw) - expected.w) < allowedDelta &&
14*c8dee2aaSAndroid Build Coastguard Worker           abs(length(constVal.x)    - expected.x) < allowedDelta &&
15*c8dee2aaSAndroid Build Coastguard Worker           abs(length(constVal.xy)   - expected.y) < allowedDelta &&
16*c8dee2aaSAndroid Build Coastguard Worker           abs(length(constVal.xyz)  - expected.z) < allowedDelta &&
17*c8dee2aaSAndroid Build Coastguard Worker           abs(length(constVal.xyzw) - expected.w) < allowedDelta ? colorGreen : colorRed;
18*c8dee2aaSAndroid Build Coastguard Worker}
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