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52 lines
2.1 KiB
52 lines
2.1 KiB
// Copyright (c) Six Labors.
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// Licensed under the Six Labors Split License.
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using SixLabors.ImageSharp.Formats.Webp.Lossy;
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using SixLabors.ImageSharp.Tests.TestUtilities;
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namespace SixLabors.ImageSharp.Tests.Formats.Webp;
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[Trait("Format", "Webp")]
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public class QuantEncTests
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{
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private static unsafe void RunQuantizeBlockTest()
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{
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// arrange
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short[] input = [378, 777, -851, 888, 259, 148, 0, -111, -185, -185, -74, -37, 148, 74, 111, 74];
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short[] output = new short[16];
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ushort[] q = [42, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37];
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ushort[] iq = [3120, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542, 3542];
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uint[] bias = [49152, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296, 55296
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];
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uint[] zthresh = [26, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21];
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short[] expectedOutput = [9, 21, 7, -5, 4, -23, 24, 0, -5, 4, 2, -2, -3, -1, 3, 2];
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int expectedResult = 1;
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Vp8Matrix vp8Matrix = default;
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for (int i = 0; i < 16; i++)
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{
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vp8Matrix.Q[i] = q[i];
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vp8Matrix.IQ[i] = iq[i];
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vp8Matrix.Bias[i] = bias[i];
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vp8Matrix.ZThresh[i] = zthresh[i];
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}
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// act
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int actualResult = QuantEnc.QuantizeBlock(input, output, ref vp8Matrix);
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// assert
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Assert.True(output.SequenceEqual(expectedOutput));
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Assert.Equal(expectedResult, actualResult);
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}
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[Fact]
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public void QuantizeBlock_Works() => RunQuantizeBlockTest();
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[Fact]
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public void QuantizeBlock_WithHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunQuantizeBlockTest, HwIntrinsics.AllowAll);
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[Fact]
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public void QuantizeBlock_WithoutSSE2_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunQuantizeBlockTest, HwIntrinsics.DisableHWIntrinsic);
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[Fact]
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public void QuantizeBlock_WithoutAVX2_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunQuantizeBlockTest, HwIntrinsics.DisableAVX2);
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}
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