C++ (Cpp) sk_sp::isNumericalTransferFnの例

コード例 #1

ファイル: SkImage.cpp プロジェクト: vschs007/skia

sk_sp<SkImage> SkImage::makeColorSpace(sk_sp<SkColorSpace> target,
                                       SkTransferFunctionBehavior premulBehavior) const {
    SkColorSpaceTransferFn fn;
    if (!target || !target->isNumericalTransferFn(&fn)) {
        return nullptr;
    }

    // No need to create a new image if:
    // (1) The color spaces are equal.
    // (2) The color type is kAlpha8.
    if (SkColorSpace::Equals(this->colorSpace(), target.get()) ||
            kAlpha_8_SkColorType == as_IB(this)->onImageInfo().colorType()) {
        return sk_ref_sp(const_cast<SkImage*>(this));
    }

    SkColorType targetColorType = kN32_SkColorType;
    if (SkTransferFunctionBehavior::kRespect == premulBehavior && target->gammaIsLinear()) {
        targetColorType = kRGBA_F16_SkColorType;
    }

    // TODO: We might consider making this a deferred conversion?
    return as_IB(this)->onMakeColorSpace(std::move(target), targetColorType, premulBehavior);
}