sk_sp<SkColorSpace> SkColorSpace::NewNamed(Named named) {
static SkOnce sRGBOnce;
static SkColorSpace* sRGB;
static SkOnce adobeRGBOnce;
static SkColorSpace* adobeRGB;
switch (named) {
case kSRGB_Named: {
sRGBOnce([] {
SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
srgbToxyzD50.set3x3RowMajorf(gSRGB_toXYZD50);
sRGB = new SkColorSpace_Base(kSRGB_GammaNamed, srgbToxyzD50, kSRGB_Named);
});
return sk_ref_sp(sRGB);
}
case kAdobeRGB_Named: {
adobeRGBOnce([] {
SkMatrix44 adobergbToxyzD50(SkMatrix44::kUninitialized_Constructor);
adobergbToxyzD50.set3x3RowMajorf(gAdobeRGB_toXYZD50);
adobeRGB = new SkColorSpace_Base(k2Dot2Curve_GammaNamed, adobergbToxyzD50,
kAdobeRGB_Named);
});
return sk_ref_sp(adobeRGB);
}
default:
break;
}
return nullptr;
}
const SkMatrix44* SkColorSpace_XYZ::fromXYZD50() const {
fFromXYZOnce([this] {
if (!fToXYZD50.invert(&fFromXYZD50)) {
// If a client gives us a dst gamut with a transform that we can't invert, we will
// simply give them back a transform to sRGB gamut.
SkDEBUGFAIL("Non-invertible XYZ matrix, defaulting to sRGB");
SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
srgbToxyzD50.set3x3RowMajorf(gSRGB_toXYZD50);
srgbToxyzD50.invert(&fFromXYZD50);
}
});
return &fFromXYZD50;
}
DEF_TEST(ColorSpaceSRGBCompare, r) {
// Create an sRGB color space by name
sk_sp<SkColorSpace> namedColorSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
// Create an sRGB color space by value
SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
srgbToxyzD50.set3x3ColMajorf(g_sRGB_XYZ);
sk_sp<SkColorSpace> rgbColorSpace = SkColorSpace::NewRGB(SkColorSpace::kSRGB_GammaNamed,
srgbToxyzD50);
REPORTER_ASSERT(r, rgbColorSpace == namedColorSpace);
// Change a single value from the sRGB matrix
srgbToxyzD50.set(2, 2, 0.5f);
sk_sp<SkColorSpace> strangeColorSpace = SkColorSpace::NewRGB(SkColorSpace::kSRGB_GammaNamed,
srgbToxyzD50);
REPORTER_ASSERT(r, strangeColorSpace != namedColorSpace);
}
sk_sp<SkColorSpace> SkColorSpace::NewNamed(Named named) {
static SkOnce sRGBOnce;
static SkColorSpace* sRGB;
static SkOnce adobeRGBOnce;
static SkColorSpace* adobeRGB;
switch (named) {
case kSRGB_Named: {
gStandardGammasOnce([] {
gStandardGammas = new SkGammas(2.2f, 2.2f, 2.2f);
});
sRGBOnce([] {
SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
srgbToxyzD50.set3x3ColMajorf(gSRGB_toXYZD50);
sRGB = new SkColorSpace(sk_ref_sp(gStandardGammas), srgbToxyzD50, kSRGB_Named);
});
return sk_ref_sp(sRGB);
}
case kAdobeRGB_Named: {
gStandardGammasOnce([] {
gStandardGammas = new SkGammas(2.2f, 2.2f, 2.2f);
});
adobeRGBOnce([] {
SkMatrix44 adobergbToxyzD50(SkMatrix44::kUninitialized_Constructor);
adobergbToxyzD50.set3x3ColMajorf(gAdobeRGB_toXYZD50);
adobeRGB = new SkColorSpace(sk_ref_sp(gStandardGammas), adobergbToxyzD50,
kAdobeRGB_Named);
});
return sk_ref_sp(adobeRGB);
}
default:
break;
}
return nullptr;
}
