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Add tests for ColorSpacePrimaries to XYZD50

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GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4146

Change-Id: I6725b3ae61b0db55b09a025e4cccd22046e6f056
Reviewed-on: https://skia-review.googlesource.com/4146
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
This commit is contained in:
Matt Sarett 2016-10-28 14:45:03 -04:00 committed by Skia Commit-Bot
parent 3affdc1bcd
commit 8c05b450d2
1 changed files with 94 additions and 14 deletions
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108
tests/ColorSpaceTest.cpp
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@ -305,22 +305,102 @@ DEF_TEST(ColorSpace_Equals, r) {
REPORTER_ASSERT(r, !SkColorSpace::Equals(rgb1.get(), rgb4.get()));
}
DEF_TEST(ColorSpace_Primaries, r) {
// sRGB primaries
SkColorSpacePrimaries primaries;
primaries.fRX = 0.64f;
primaries.fRY = 0.33f;
primaries.fGX = 0.30f;
primaries.fGY = 0.60f;
primaries.fBX = 0.15f;
primaries.fBY = 0.06f;
primaries.fWX = 0.3127f;
primaries.fWY = 0.3290f;
static inline bool matrix_almost_equal(const SkMatrix44& a, const SkMatrix44& b) {
return almost_equal(a.get(0, 0), b.get(0, 0)) &&
almost_equal(a.get(0, 1), b.get(0, 1)) &&
almost_equal(a.get(0, 2), b.get(0, 2)) &&
almost_equal(a.get(0, 3), b.get(0, 3)) &&
almost_equal(a.get(1, 0), b.get(1, 0)) &&
almost_equal(a.get(1, 1), b.get(1, 1)) &&
almost_equal(a.get(1, 2), b.get(1, 2)) &&
almost_equal(a.get(1, 3), b.get(1, 3)) &&
almost_equal(a.get(2, 0), b.get(2, 0)) &&
almost_equal(a.get(2, 1), b.get(2, 1)) &&
almost_equal(a.get(2, 2), b.get(2, 2)) &&
almost_equal(a.get(2, 3), b.get(2, 3)) &&
almost_equal(a.get(3, 0), b.get(3, 0)) &&
almost_equal(a.get(3, 1), b.get(3, 1)) &&
almost_equal(a.get(3, 2), b.get(3, 2)) &&
almost_equal(a.get(3, 3), b.get(3, 3));
}
static inline void check_primaries(skiatest::Reporter* r, const SkColorSpacePrimaries& primaries,
const SkMatrix44& reference) {
SkMatrix44 toXYZ(SkMatrix44::kUninitialized_Constructor);
bool result = primaries.toXYZD50(&toXYZ);
REPORTER_ASSERT(r, result);
sk_sp<SkColorSpace> space = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, toXYZ);
REPORTER_ASSERT(r, SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) == space);
REPORTER_ASSERT(r, matrix_almost_equal(toXYZ, reference));
}
DEF_TEST(ColorSpace_Primaries, r) {
// sRGB primaries (D65)
SkColorSpacePrimaries srgb;
srgb.fRX = 0.64f;
srgb.fRY = 0.33f;
srgb.fGX = 0.30f;
srgb.fGY = 0.60f;
srgb.fBX = 0.15f;
srgb.fBY = 0.06f;
srgb.fWX = 0.3127f;
srgb.fWY = 0.3290f;
SkMatrix44 srgbToXYZ(SkMatrix44::kUninitialized_Constructor);
bool result = srgb.toXYZD50(&srgbToXYZ);
REPORTER_ASSERT(r, result);
sk_sp<SkColorSpace> space = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
srgbToXYZ);
REPORTER_ASSERT(r, SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) == space);
// AdobeRGB primaries (D65)
SkColorSpacePrimaries adobe;
adobe.fRX = 0.64f;
adobe.fRY = 0.33f;
adobe.fGX = 0.21f;
adobe.fGY = 0.71f;
adobe.fBX = 0.15f;
adobe.fBY = 0.06f;
adobe.fWX = 0.3127f;
adobe.fWY = 0.3290f;
SkMatrix44 adobeToXYZ(SkMatrix44::kUninitialized_Constructor);
result = adobe.toXYZD50(&adobeToXYZ);
REPORTER_ASSERT(r, result);
SkColorSpaceTransferFn fn;
fn.fA = 1.0f;
fn.fB = fn.fC = fn.fD = fn.fE = fn.fF = 0.0f;
fn.fG = 2.2f;
space = SkColorSpace::MakeRGB(fn, adobeToXYZ);
REPORTER_ASSERT(r, SkColorSpace::MakeNamed(SkColorSpace::kAdobeRGB_Named) == space);
// ProPhoto (D50)
SkColorSpacePrimaries proPhoto;
proPhoto.fRX = 0.7347f;
proPhoto.fRY = 0.2653f;
proPhoto.fGX = 0.1596f;
proPhoto.fGY = 0.8404f;
proPhoto.fBX = 0.0366f;
proPhoto.fBY = 0.0001f;
proPhoto.fWX = 0.34567f;
proPhoto.fWY = 0.35850f;
SkMatrix44 proToXYZ(SkMatrix44::kUninitialized_Constructor);
proToXYZ.set3x3(0.7976749f, 0.2880402f, 0.0000000f,
0.1351917f, 0.7118741f, 0.0000000f,
0.0313534f, 0.0000857f, 0.8252100f);
check_primaries(r, proPhoto, proToXYZ);
// NTSC (C)
SkColorSpacePrimaries ntsc;
ntsc.fRX = 0.67f;
ntsc.fRY = 0.33f;
ntsc.fGX = 0.21f;
ntsc.fGY = 0.71f;
ntsc.fBX = 0.14f;
ntsc.fBY = 0.08f;
ntsc.fWX = 0.31006f;
ntsc.fWY = 0.31616f;
SkMatrix44 ntscToXYZ(SkMatrix44::kUninitialized_Constructor);
ntscToXYZ.set3x3(0.6343706f, 0.3109496f, -0.0011817f,
0.1852204f, 0.5915984f, 0.0555518f,
0.1446290f, 0.0974520f, 0.7708399f);
check_primaries(r, ntsc, ntscToXYZ);
}