+
+TEST(PaddingEffectTest, BorderOffsetTopAndBottom) {
+ float data[2 * 2] = {
+ 1.0f, 0.5f,
+ 0.8f, 0.3f,
+ };
+ float expected_data[4 * 4] = {
+ 0.0f, 0.000f, 0.000f, 0.0f,
+ 0.0f, 0.750f, 0.375f, 0.0f,
+ 0.0f, 0.800f, 0.300f, 0.0f,
+ 0.0f, 0.200f, 0.075f, 0.0f, // Repeated pixels, 25% opacity.
+ };
+ float out_data[4 * 4];
+
+ EffectChainTester tester(NULL, 4, 4);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_LINEAR;
+
+ FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, 2, 2);
+ input->set_pixel_data(data);
+ tester.get_chain()->add_input(input);
+
+ Effect *effect = tester.get_chain()->add_effect(new PaddingEffect());
+ CHECK(effect->set_int("width", 4));
+ CHECK(effect->set_int("height", 4));
+ CHECK(effect->set_float("left", 1.0f));
+ CHECK(effect->set_float("top", 1.0f));
+ CHECK(effect->set_float("border_offset_top", 0.25f));
+ CHECK(effect->set_float("border_offset_bottom", 0.25f));
+
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+ expect_equal(expected_data, out_data, 4, 4);
+}
+
+TEST(PaddingEffectTest, BorderOffsetLeftAndRight) {
+ float data[3 * 2] = {
+ 1.0f, 0.5f, 0.6f,
+ 0.8f, 0.3f, 0.2f,
+ };
+ float expected_data[4 * 2] = {
+ 0.750f, 0.5f, 0.3f, 0.0f,
+ 0.600f, 0.3f, 0.1f, 0.0f
+ };
+ float out_data[4 * 2];
+
+ EffectChainTester tester(NULL, 4, 2);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_LINEAR;
+
+ FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, 3, 2);
+ input->set_pixel_data(data);
+ tester.get_chain()->add_input(input);
+
+ Effect *effect = tester.get_chain()->add_effect(new PaddingEffect());
+ CHECK(effect->set_int("width", 4));
+ CHECK(effect->set_int("height", 2));
+ CHECK(effect->set_float("left", 0.0f));
+ CHECK(effect->set_float("top", 0.0f));
+ CHECK(effect->set_float("border_offset_left", 0.25f));
+ CHECK(effect->set_float("border_offset_right", -0.5f));
+
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+ expect_equal(expected_data, out_data, 4, 2);
+}
+
+} // namespace movit