// Unit tests for AlphaMultiplicationEffect.
+#include <epoxy/gl.h>
#include <stddef.h>
#include "effect_chain.h"
#include "test_util.h"
#include "util.h"
+namespace movit {
+
TEST(PaddingEffectTest, SimpleCenter) {
float data[2 * 2] = {
1.0f, 0.5f,
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
expect_equal(expected_data, out_data, 1, 1);
}
+
+TEST(PaddingEffectTest, AlphaIsCorrectEvenWithNonLinearInputsAndOutputs) {
+ float data[2 * 1] = {
+ 1.0f,
+ 0.8f,
+ };
+ float expected_data[4 * 4] = {
+ 1.0f, 1.0f, 1.0f, 0.5f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.8f, 0.8f, 0.8f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 0.5f,
+ };
+ float out_data[4 * 4];
+
+ EffectChainTester tester(NULL, 1, 4);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_REC_601_625;
+ format.gamma_curve = GAMMA_REC_709;
+
+ FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, 1, 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", 1));
+ CHECK(effect->set_int("height", 4));
+ CHECK(effect->set_float("left", 0.0f));
+ CHECK(effect->set_float("top", 1.0f));
+
+ RGBATuple border_color(1.0f, 1.0f, 1.0f, 0.5f);
+ CHECK(effect->set_vec4("border_color", (float *)&border_color));
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_REC_601_625, GAMMA_REC_709, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
+ expect_equal(expected_data, out_data, 4, 4);
+}
+
+} // namespace movit