334fcbc167
Motivation: remove copyToData(). Later we will stop caching the data alltogether. BUG=skia: Review URL: https://codereview.chromium.org/958433003
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
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/*
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* Copyright 2010 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPDFFormXObject.h"
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#include "SkMatrix.h"
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#include "SkPDFCatalog.h"
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#include "SkPDFDevice.h"
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#include "SkPDFResourceDict.h"
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#include "SkPDFUtils.h"
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#include "SkStream.h"
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#include "SkTypes.h"
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SkPDFFormXObject::SkPDFFormXObject(SkPDFDevice* device) {
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// We don't want to keep around device because we'd have two copies
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// of content, so reference or copy everything we need (content and
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// resources).
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SkPDFResourceDict* resourceDict = device->getResourceDict();
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SkAutoTDelete<SkStreamAsset> content(device->content());
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this->setData(content.get());
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SkAutoTUnref<SkPDFArray> bboxArray(device->copyMediaBox());
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init(NULL, resourceDict, bboxArray);
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// We invert the initial transform and apply that to the xobject so that
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// it doesn't get applied twice. We can't just undo it because it's
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// embedded in things like shaders and images.
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if (!device->initialTransform().isIdentity()) {
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SkMatrix inverse;
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if (!device->initialTransform().invert(&inverse)) {
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// The initial transform should be invertible.
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SkASSERT(false);
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inverse.reset();
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}
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insert("Matrix", SkPDFUtils::MatrixToArray(inverse))->unref();
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}
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}
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/**
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* Creates a FormXObject from a content stream and associated resources.
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*/
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SkPDFFormXObject::SkPDFFormXObject(SkStream* content, SkRect bbox,
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SkPDFResourceDict* resourceDict) {
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setData(content);
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SkAutoTUnref<SkPDFArray> bboxArray(SkPDFUtils::RectToArray(bbox));
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init("DeviceRGB", resourceDict, bboxArray);
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}
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/**
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* Common initialization code.
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* Note that bbox is unreferenced here, so calling code does not need worry.
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*/
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void SkPDFFormXObject::init(const char* colorSpace,
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SkPDFDict* resourceDict, SkPDFArray* bbox) {
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insertName("Type", "XObject");
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insertName("Subtype", "Form");
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insert("Resources", resourceDict);
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insert("BBox", bbox);
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// Right now SkPDFFormXObject is only used for saveLayer, which implies
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// isolated blending. Do this conditionally if that changes.
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SkAutoTUnref<SkPDFDict> group(new SkPDFDict("Group"));
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group->insertName("S", "Transparency");
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if (colorSpace != NULL) {
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group->insertName("CS", colorSpace);
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}
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group->insert("I", new SkPDFBool(true))->unref(); // Isolated.
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insert("Group", group.get());
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}
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SkPDFFormXObject::~SkPDFFormXObject() {}
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