In ResampleEffect, precompute the Lanczos function into a table.

[movit] / resample_effect_test.cpp

diff --git a/resample_effect_test.cpp b/resample_effect_test.cpp
index 353429ee82a703f5c0f6fcf7c6ef11825ef72c0c..81fb8468c4efaaf997cbaeb0eb62051f7220be51 100644 (file)
--- a/resample_effect_test.cpp
+++ b/resample_effect_test.cpp
@@ -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);
                }
        }
 }