X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=resample_effect_test.cpp;h=02d9d74d1102ace6a956331bac2280f8a368060f;hp=9082b26b42bc3ebe490046747fd8deef5a004328;hb=34776d3ed2565ee834405e575bf3bfc7f7933e36;hpb=42f0fd5ccbb3560a76d55f3e725416a5e0f93523 diff --git a/resample_effect_test.cpp b/resample_effect_test.cpp index 9082b26..02d9d74 100644 --- a/resample_effect_test.cpp +++ b/resample_effect_test.cpp @@ -96,11 +96,11 @@ TEST(ResampleEffectTest, DownscaleByTwoGetsCorrectPixelCenters) { // the texel center right (everything is nicely symmetric). // The approximate magnitudes have been checked against ImageMagick. float expected_data[size * size] = { - 0.0046, -0.0068, -0.0611, -0.0068, 0.0047, - -0.0068, 0.0100, 0.0895, 0.0100, -0.0068, - -0.0603, 0.0892, 0.7993, 0.0895, -0.0611, - -0.0067, 0.0100, 0.0892, 0.0100, -0.0068, - 0.0045, -0.0067, -0.0603, -0.0068, 0.0046, + 0.0045, -0.0067, -0.0599, -0.0067, 0.0045, + -0.0067, 0.0100, 0.0892, 0.0100, -0.0067, + -0.0599, 0.0890, 0.7925, 0.0892, -0.0599, + -0.0067, 0.0100, 0.0890, 0.0100, -0.0067, + 0.0045, -0.0067, -0.0599, -0.0067, 0.0045, }; float data[size * size * 4], out_data[size * size]; @@ -162,8 +162,8 @@ TEST(ResampleEffectTest, UpscaleByThreeGetsCorrectPixelCenters) { EXPECT_FLOAT_EQ(1.0, out_data[7 * (size * 3) + 7]); for (unsigned y = 0; y < size * 3; ++y) { for (unsigned x = 0; x < size * 3; ++x) { - EXPECT_FLOAT_EQ(out_data[y * (size * 3) + x], out_data[(size * 3 - y - 1) * (size * 3) + x]); - EXPECT_FLOAT_EQ(out_data[y * (size * 3) + x], out_data[y * (size * 3) + (size * 3 - x - 1)]); + EXPECT_NEAR(out_data[y * (size * 3) + x], out_data[(size * 3 - y - 1) * (size * 3) + x], 1e-6); + EXPECT_NEAR(out_data[y * (size * 3) + x], out_data[y * (size * 3) + (size * 3 - x - 1)], 1e-6); } } } @@ -205,7 +205,7 @@ TEST(ResampleEffectTest, HeavyResampleGetsSumRight) { // Require that we are within 10-bit accuracy. Note that this limit is for // one pass only, but the limit is tight enough that it should be good enough // for 10-bit accuracy even after two passes. - expect_equal(expected_data, out_data, dwidth, dheight, 0.1 / 1023.0); + expect_equal(expected_data, out_data, dwidth, dheight, 0.12 / 1023.0); } TEST(ResampleEffectTest, ReadWholePixelFromLeft) { @@ -402,12 +402,12 @@ TEST(ResampleEffectTest, VerticalZoomFromTop) { } TEST(ResampleEffectTest, Precision) { - const int size = 2048; + const int size = 1920; // Difficult non-power-of-two size. const int offset = 5; // Deliberately put the data of interest very close to the right, // where texture coordinates are farther from 0 and thus less precise. - float data[size] = {0}; + float data[size * 2] = {0}; data[size - offset] = 1.0f; float expected_data[size * 2] = {0}; for (int x = 0; x < size * 2; ++x) {