-// Unit tests for AlphaMultiplicationEffect.
+// Unit tests for PaddingEffect.
-#include <GL/glew.h>
+#include <epoxy/gl.h>
#include <stddef.h>
#include "effect_chain.h"
float data[4 * 1] = {
0.25f, 0.50f, 0.75f, 1.0f,
};
- // Note that the first pixel is completely blank, since the cutoff goes
- // at the immediate left of the texel.
float expected_data[5 * 2] = {
- 0.0f, 0.4375f, 0.6875f, 0.9375f, 0.0f,
+ 0.1875f, 0.4375f, 0.6875f, 0.9375f, 0.25f,
0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
};
float out_data[5 * 2];
expect_equal(expected_data, out_data, 1, 1);
}
-TEST(PaddingEffectTest, CropFromBottom) {
- float data[2 * 2] = {
- 1.0f, 0.5f,
- 0.8f, 0.3f,
- };
- float expected_data[1 * 1] = {
- 0.5f,
- };
- float out_data[1 * 1];
-
- EffectChainTester tester(NULL, 1, 1);
-
- 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", 1));
- CHECK(effect->set_int("height", 1));
- CHECK(effect->set_float("left", -1.0f));
- CHECK(effect->set_float("top", -1.0f));
- CHECK(effect->set_int("pad_from_bottom", 1));
-
- 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,
expect_equal(expected_data, out_data, 4, 4);
}
+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