+TEST(YCbCrInputTest, TenBitInterleaved) {
+ const int width = 1;
+ const int height = 5;
+
+ // Pure-color inputs, calculated using formulas 3.2, 3.3 and 3.4 from
+ // Rec. 709. (Except the first two, which are obvious given the 64–940
+ // range of luminance.)
+ unsigned expanded_data[width * height * 3] = {
+ 64, 512, 512,
+ 940, 512, 512,
+ 250, 409, 960,
+ 691, 167, 105,
+ 127, 960, 471,
+ };
+ float expected_data[4 * width * height] = {
+ 0.0, 0.0, 0.0, 1.0,
+ 1.0, 1.0, 1.0, 1.0,
+ 1.0, 0.0, 0.0, 1.0,
+ 0.0, 1.0, 0.0, 1.0,
+ 0.0, 0.0, 1.0, 1.0,
+ };
+ float out_data[4 * width * height];
+
+ // Pack 32:32:32 to 10:10:10:2.
+ uint32_t data[width * height];
+ for (unsigned i = 0; i < width * height; ++i) {
+ data[i] =
+ expanded_data[i * 3 + 0] |
+ (expanded_data[i * 3 + 1] << 10) |
+ (expanded_data[i * 3 + 2] << 20);
+ }
+
+ EffectChainTester tester(NULL, width, height);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_sRGB;
+
+ YCbCrFormat ycbcr_format;
+ ycbcr_format.luma_coefficients = YCBCR_REC_709;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 1024; // 10-bit.
+ ycbcr_format.chroma_subsampling_x = 1;
+ ycbcr_format.chroma_subsampling_y = 1;
+ ycbcr_format.cb_x_position = 0.5f;
+ ycbcr_format.cb_y_position = 0.5f;
+ ycbcr_format.cr_x_position = 0.5f;
+ ycbcr_format.cr_y_position = 0.5f;
+
+ YCbCrInput *input = new YCbCrInput(format, ycbcr_format, width, height, YCBCR_INPUT_INTERLEAVED, GL_UNSIGNED_INT_2_10_10_10_REV);
+ input->set_pixel_data(0, data);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // We can set much tighter limits on this than 8-bit Y'CbCr;
+ // even tighter than the default limits.
+ expect_equal(expected_data, out_data, 4 * width, height, 0.002, 0.0003);
+}
+