Add an effect for complex multiplication.

[movit] / complex_modulate_effect_test.cpp

diff --git a/complex_modulate_effect_test.cpp b/complex_modulate_effect_test.cpp
new file mode 100644 (file)
index 0000000..8c49d8a
--- /dev/null
+++ b/complex_modulate_effect_test.cpp
@@ -0,0 +1,99 @@
+// Unit tests for ComplexModulateEffect.
+
+#include <GL/glew.h>
+
+#include "effect_chain.h"
+#include "gtest/gtest.h"
+#include "complex_modulate_effect.h"
+#include "image_format.h"
+#include "input.h"
+#include "test_util.h"
+
+namespace movit {
+
+TEST(ComplexModulateEffectTest, Identity) {
+       const int size = 3;
+       float data_a[size * 4] = {
+               0.0f, 0.1f, 0.2f, 0.1f,
+               0.4f, 0.3f, 0.8f, 2.0f,
+               0.5f, 0.2f, 0.1f, 0.0f,
+       };
+       float data_b[size * 2] = {
+               1.0f, 0.0f,
+               1.0f, 0.0f,
+               1.0f, 0.0f,
+       };
+       float out_data[size * 4];
+
+       EffectChainTester tester(data_a, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
+       Effect *input1 = tester.get_chain()->last_added_effect();
+       Effect *input2 = tester.add_input(data_b, FORMAT_RG, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+       tester.get_chain()->add_effect(new ComplexModulateEffect(), input1, input2);
+       tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+
+       expect_equal(data_a, out_data, 4, size);
+}
+
+TEST(ComplexModulateEffectTest, ComplexMultiplication) {
+       const int size = 2;
+       float data_a[size * 4] = {
+               0.0f, 0.1f, 0.2f, 0.1f,
+               0.4f, 0.3f, 0.8f, 2.0f,
+       };
+       float data_b[size * 2] = {
+               0.0f,  1.0f,
+               0.5f, -0.8f,
+       };
+       float expected_data[size * 4] = {
+               -0.1f,   0.0f,  -0.1f, 0.2f,
+                0.44f, -0.17f,  2.0f, 0.36f,
+       };
+       float out_data[size * 4];
+
+       EffectChainTester tester(data_a, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
+       Effect *input1 = tester.get_chain()->last_added_effect();
+       Effect *input2 = tester.add_input(data_b, FORMAT_RG, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+       tester.get_chain()->add_effect(new ComplexModulateEffect(), input1, input2);
+       tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+
+       expect_equal(expected_data, out_data, 4, size);
+}
+
+TEST(ComplexModulateEffectTest, Repeat) {
+       const int size = 2, repeats = 3;
+       float data_a[size * repeats * 4] = {
+               0.0f, 0.1f, 0.2f, 0.3f,
+               1.0f, 1.1f, 1.2f, 1.3f,
+               2.0f, 2.1f, 2.2f, 2.3f,
+               3.0f, 3.1f, 3.2f, 3.3f,
+               4.0f, 4.1f, 4.2f, 4.3f,
+               5.0f, 5.1f, 5.2f, 5.3f,
+       };
+       float data_b[size * 2] = {
+               1.0f,  0.0f,
+               0.0f, -1.0f,
+       };
+       float expected_data[size * repeats * 4] = {
+               0.0f,  0.1f, 0.2f,  0.3f,
+               1.1f, -1.0f, 1.3f, -1.2f,
+               2.0f,  2.1f, 2.2f,  2.3f,
+               3.1f, -3.0f, 3.3f, -3.2f,
+               4.0f,  4.1f, 4.2f,  4.3f,
+               5.1f, -5.0f, 5.3f, -5.2f,
+       };
+       float out_data[size * repeats * 4];
+
+       EffectChainTester tester(data_a, 1, repeats * size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
+       Effect *input1 = tester.get_chain()->last_added_effect();
+       Effect *input2 = tester.add_input(data_b, FORMAT_RG, COLORSPACE_sRGB, GAMMA_LINEAR, 1, size);
+
+       Effect *effect = tester.get_chain()->add_effect(new ComplexModulateEffect(), input1, input2);
+       ASSERT_TRUE(effect->set_int("num_repeats_y", repeats));
+       tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+
+       expect_equal(expected_data, out_data, 4, size * repeats);
+}
+
+}  // namespace movit