X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=effect_chain_test.cpp;h=adf832ac61e4ad445f115a72b83f324352f78812;hb=274627c966f53780991e9f80887aa1906b592751;hp=6ab874d2e4e32507beb5cc9eeb546fac69e9f546;hpb=54d47f65e9abac77229636fbaaefea8caf34a4d4;p=movit

diff --git a/effect_chain_test.cpp b/effect_chain_test.cpp
index 6ab874d..adf832a 100644
--- a/effect_chain_test.cpp
+++ b/effect_chain_test.cpp
@@ -1303,5 +1303,20 @@ TEST(EffectChainTest, StringStreamLocalesWork) {
 	free(saved_locale);
 }
 
+TEST(EffectChainTest, sRGBIntermediate) {
+	float data[] = {
+		0.0f, 0.5f, 0.0f, 1.0f,
+	};
+	float out_data[4];
+	EffectChainTester tester(data, 1, 1, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR, GL_RGBA16F_ARB, GL_SRGB8);
+	tester.get_chain()->add_effect(new IdentityEffect());
+	tester.get_chain()->add_effect(new BouncingIdentityEffect());
+	tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+	EXPECT_GE(fabs(out_data[1] - data[1]), 1e-3)
+	    << "Expected sRGB not to be able to represent 0.5 exactly (got " << out_data[1] << ")";
+	EXPECT_LT(fabs(out_data[1] - data[1]), 0.1f)
+	    << "Expected sRGB to be able to represent 0.5 approximately (got " << out_data[1] << ")";
+}
 
 }  // namespace movit