/*
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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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#ifndef SkPDFGraphicState_DEFINED
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#define SkPDFGraphicState_DEFINED
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#include "SkMacros.h"
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#include "SkOpts.h"
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#include "SkPDFTypes.h"
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class SkPaint;
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/** \class SkPDFGraphicState
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SkPaint objects roughly correspond to graphic state dictionaries that can
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be installed. So that a given dictionary is only output to the pdf file
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once, we want to canonicalize them.
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*/
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namespace SkPDFGraphicState {
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enum SkPDFSMaskMode {
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kAlpha_SMaskMode,
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kLuminosity_SMaskMode
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};
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/** Get the graphic state for the passed SkPaint.
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*/
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SkPDFIndirectReference GetGraphicStateForPaint(SkPDFDocument*, const SkPaint&);
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/** Make a graphic state that only sets the passed soft mask.
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* @param sMask The form xobject to use as a soft mask.
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* @param invert Indicates if the alpha of the sMask should be inverted.
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* @param sMaskMode Whether to use alpha or luminosity for the sMask.
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*
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* These are not de-duped.
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*/
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SkPDFIndirectReference GetSMaskGraphicState(SkPDFIndirectReference sMask,
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bool invert,
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SkPDFSMaskMode sMaskMode,
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SkPDFDocument* doc);
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}
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SK_BEGIN_REQUIRE_DENSE
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struct SkPDFStrokeGraphicState {
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SkScalar fStrokeWidth;
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SkScalar fStrokeMiter;
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SkScalar fAlpha;
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uint8_t fStrokeCap; // SkPaint::Cap
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uint8_t fStrokeJoin; // SkPaint::Join
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uint8_t fBlendMode; // SkBlendMode
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uint8_t fPADDING = 0;
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bool operator==(const SkPDFStrokeGraphicState& o) const { return !memcmp(this, &o, sizeof(o)); }
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bool operator!=(const SkPDFStrokeGraphicState& o) const { return !(*this == o); }
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};
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SK_END_REQUIRE_DENSE
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SK_BEGIN_REQUIRE_DENSE
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struct SkPDFFillGraphicState {
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SkScalar fAlpha;
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uint8_t fBlendMode;
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uint8_t fPADDING[3] = {0, 0, 0};
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bool operator==(const SkPDFFillGraphicState& o) const { return !memcmp(this, &o, sizeof(o)); }
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bool operator!=(const SkPDFFillGraphicState& o) const { return !(*this == o); }
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};
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SK_END_REQUIRE_DENSE
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#endif
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