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vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +00001/*
epoger@google.comec3ed6a2011-07-28 14:26:00 +00002 * Copyright 2010 The Android Open Source Project
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +00003 *
epoger@google.comec3ed6a2011-07-28 14:26:00 +00004 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +00006 */
7
epoger@google.comec3ed6a2011-07-28 14:26:00 +00008
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +00009#include "SkPDFFormXObject.h"
halcanary5abbb442016-07-29 08:41:33 -070010#include "SkPDFUtils.h"
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +000011
Hal Canary9a3f5542018-12-10 19:59:07 -050012SkPDFIndirectReference SkPDFMakeFormXObject(SkPDFDocument* doc,
13 std::unique_ptr<SkStreamAsset> content,
Hal Canary74801582018-12-18 16:30:41 -050014 std::unique_ptr<SkPDFArray> mediaBox,
15 std::unique_ptr<SkPDFDict> resourceDict,
Hal Canary9a3f5542018-12-10 19:59:07 -050016 const SkMatrix& inverseTransform,
17 const char* colorSpace) {
Hal Canary74801582018-12-18 16:30:41 -050018 std::unique_ptr<SkPDFDict> dict = SkPDFMakeDict();
Hal Canary9a3f5542018-12-10 19:59:07 -050019 dict->insertName("Type", "XObject");
20 dict->insertName("Subtype", "Form");
halcanary5abbb442016-07-29 08:41:33 -070021 if (!inverseTransform.isIdentity()) {
Hal Canary9a3f5542018-12-10 19:59:07 -050022 dict->insertObject("Matrix", SkPDFUtils::MatrixToArray(inverseTransform));
halcanary5abbb442016-07-29 08:41:33 -070023 }
Hal Canary9a3f5542018-12-10 19:59:07 -050024 dict->insertObject("Resources", std::move(resourceDict));
25 dict->insertObject("BBox", std::move(mediaBox));
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +000026
halcanary4b1e17e2016-07-27 14:49:46 -070027 // Right now FormXObject is only used for saveLayer, which implies
vandebo@chromium.org48543272011-02-08 19:28:07 +000028 // isolated blending. Do this conditionally if that changes.
halcanary4b1e17e2016-07-27 14:49:46 -070029 // TODO(halcanary): Is this comment obsolete, since we use it for
30 // alpha masks?
Hal Canary74801582018-12-18 16:30:41 -050031 auto group = SkPDFMakeDict("Group");
vandebo@chromium.org06f7f402011-07-20 18:39:20 +000032 group->insertName("S", "Transparency");
halcanary96fcdcc2015-08-27 07:41:13 -070033 if (colorSpace != nullptr) {
commit-bot@chromium.org93a2e212013-07-23 23:16:03 +000034 group->insertName("CS", colorSpace);
35 }
halcanarya25b3372015-04-27 14:00:09 -070036 group->insertBool("I", true); // Isolated.
Hal Canary9a3f5542018-12-10 19:59:07 -050037 dict->insertObject("Group", std::move(group));
38 return SkPDFStreamOut(std::move(dict), std::move(content), doc);
vandebo@chromium.orgeb6c7592010-10-26 19:54:45 +000039}