1eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2010 The Android Open Source Project 3eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org */ 7eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org 8ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 9eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org#include "SkPDFFormXObject.h" 105abbb44f682038abe01b8ee63fb22439af861ddahalcanary#include "SkPDFUtils.h" 11eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org 124b1e17edc78c0313d5cb8a415f816f654cdfa417halcanarysk_sp<SkPDFObject> SkPDFMakeFormXObject(std::unique_ptr<SkStreamAsset> content, 134b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary sk_sp<SkPDFArray> mediaBox, 144b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary sk_sp<SkPDFDict> resourceDict, 155abbb44f682038abe01b8ee63fb22439af861ddahalcanary const SkMatrix& inverseTransform, 164b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary const char* colorSpace) { 174b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary auto form = sk_make_sp<SkPDFStream>(std::move(content)); 18fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertName("Type", "XObject"); 19fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertName("Subtype", "Form"); 205abbb44f682038abe01b8ee63fb22439af861ddahalcanary if (!inverseTransform.isIdentity()) { 21fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary sk_sp<SkPDFObject> mat(SkPDFUtils::MatrixToArray(inverseTransform)); 22fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertObject("Matrix", std::move(mat)); 235abbb44f682038abe01b8ee63fb22439af861ddahalcanary } 24fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertObject("Resources", std::move(resourceDict)); 25fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertObject("BBox", std::move(mediaBox)); 264b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary 274b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary // Right now FormXObject is only used for saveLayer, which implies 2848543277728fdf66b993f17421f65fba532a23a2vandebo@chromium.org // isolated blending. Do this conditionally if that changes. 294b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary // TODO(halcanary): Is this comment obsolete, since we use it for 304b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary // alpha masks? 31ece83924384b2e9e8cd422324c44797deb99ec90halcanary auto group = sk_make_sp<SkPDFDict>("Group"); 3206f7f4051eeb299cb15b308edabd17344c183a36vandebo@chromium.org group->insertName("S", "Transparency"); 3396fcdcc219d2a0d3579719b84b28bede76efba64halcanary if (colorSpace != nullptr) { 3493a2e213441c75033b04365c7d68c8d3887288accommit-bot@chromium.org group->insertName("CS", colorSpace); 3593a2e213441c75033b04365c7d68c8d3887288accommit-bot@chromium.org } 36a25b3371a7209105e6c05f7bbb53d19e2b14498bhalcanary group->insertBool("I", true); // Isolated. 37fa25106f02f26d7a149cfe57c1d4756372e0755chalcanary form->dict()->insertObject("Group", std::move(group)); 384b1e17edc78c0313d5cb8a415f816f654cdfa417halcanary return form; 39eb6c7596af1a1fc7860e27ff2f678a33b2576c0fvandebo@chromium.org} 40