// Unit tests for FlatInput.
-#include "test_util.h"
-#include "gtest/gtest.h"
+#include <epoxy/gl.h>
+#include <stddef.h>
+
+#include "effect_chain.h"
#include "flat_input.h"
+#include "gtest/gtest.h"
+#include "test_util.h"
+#include "util.h"
+
+namespace movit {
TEST(FlatInput, SimpleGrayscale) {
const int size = 4;
};
float out_data[4 * size];
- EffectChainTester tester(data, 1, size, FORMAT_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(data, 1, size, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+ expect_equal(expected_data, out_data, 4, size);
+}
+
+// Note: The sRGB conversion itself is tested in EffectChainTester,
+// since it also wants to test the chain building itself.
+// Here, we merely test that alpha is left alone; the test will usually
+// run using the sRGB OpenGL extension, but might be run with a
+// GammaExpansionEffect if the card/driver happens not to support that.
+TEST(FlatInput, AlphaIsNotModifiedBySRGBConversion) {
+ const int size = 5;
+
+ unsigned char data[4 * size] = {
+ 0, 0, 0, 0,
+ 0, 0, 0, 63,
+ 0, 0, 0, 127,
+ 0, 0, 0, 191,
+ 0, 0, 0, 255,
+ };
+ float expected_data[4 * size] = {
+ 0, 0, 0, 0.0 / 255.0,
+ 0, 0, 0, 63.0 / 255.0,
+ 0, 0, 0, 127.0 / 255.0,
+ 0, 0, 0, 191.0 / 255.0,
+ 0, 0, 0, 255.0 / 255.0,
+ };
+ float out_data[4 * size];
+
+ EffectChainTester tester(NULL, 1, size);
+ tester.add_input(data, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_sRGB);
tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
expect_equal(expected_data, out_data, 4, size);
};
float out_data[4 * size];
- EffectChainTester tester(data, 1, size, FORMAT_BGRA, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(data, 1, size, FORMAT_BGRA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
expect_equal(expected_data, out_data, 4, size);
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
expect_equal(data, out_data, width, height);
}
+
+TEST(FlatInput, PBO) {
+ const int width = 3;
+ const int height = 2;
+
+ float data[width * height] = {
+ 0.0, 1.0, 0.5,
+ 0.5, 0.5, 0.2,
+ };
+ float expected_data[4 * width * height] = {
+ 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.5, 0.5, 0.5, 1.0,
+ 0.5, 0.5, 0.5, 1.0, 0.5, 0.5, 0.5, 1.0, 0.2, 0.2, 0.2, 1.0,
+ };
+ float out_data[4 * width * height];
+
+ GLuint pbo;
+ glGenBuffers(1, &pbo);
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
+ glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, width * height * sizeof(float), data, GL_STREAM_DRAW);
+ glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
+
+ EffectChainTester tester(NULL, width, height);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_LINEAR;
+
+ FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
+ input->set_pixel_data((float *)BUFFER_OFFSET(0), pbo);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+ expect_equal(expected_data, out_data, 4 * width, height);
+
+ glDeleteBuffers(1, &pbo);
+}
+
+} // namespace movit