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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkImage.h"
#include "SkPDFBitmap.h"
#include "SkPDFCanon.h"
#include "SkPDFFont.h"
#include "SkPDFShader.h"
////////////////////////////////////////////////////////////////////////////////
void SkPDFCanon::reset() {
for (int i = 0; i < fFontRecords.count(); ++i) {
fFontRecords[i].fFont->unref();
}
fFontRecords.reset();
fFunctionShaderRecords.unrefAll();
fFunctionShaderRecords.reset();
fAlphaShaderRecords.unrefAll();
fAlphaShaderRecords.reset();
fImageShaderRecords.unrefAll();
fImageShaderRecords.reset();
fGraphicStateRecords.foreach ([](WrapGS w) { w.fPtr->unref(); });
fGraphicStateRecords.reset();
fPDFBitmapMap.foreach([](SkBitmapKey, SkPDFObject** p) { (*p)->unref(); });
fPDFBitmapMap.reset();
}
////////////////////////////////////////////////////////////////////////////////
template <class T> T* assert_ptr(T* p) { SkASSERT(p); return p; }
// requires `bool T::equals(const U&) const`
template <typename T, typename U>
T* find_item(const SkTDArray<T*>& ptrArray, const U& object) {
for (int i = 0; i < ptrArray.count(); ++i) {
if (ptrArray[i]->equals(object)) {
return ptrArray[i];
}
}
return nullptr;
}
////////////////////////////////////////////////////////////////////////////////
SkPDFFont* SkPDFCanon::findFont(uint32_t fontID,
uint16_t glyphID,
SkPDFFont** relatedFontPtr) const {
SkASSERT(relatedFontPtr);
SkPDFFont* relatedFont = nullptr;
for (int i = 0; i < fFontRecords.count(); ++i) {
SkPDFFont::Match match = SkPDFFont::IsMatch(
fFontRecords[i].fFont, fFontRecords[i].fFontID,
fFontRecords[i].fGlyphID, fontID, glyphID);
if (SkPDFFont::kExact_Match == match) {
return fFontRecords[i].fFont;
} else if (!relatedFont && SkPDFFont::kRelated_Match == match) {
relatedFont = fFontRecords[i].fFont;
}
}
*relatedFontPtr = relatedFont; // May still be nullptr.
return nullptr;
}
void SkPDFCanon::addFont(SkPDFFont* font, uint32_t fontID, uint16_t fGlyphID) {
SkPDFCanon::FontRec* rec = fFontRecords.push();
rec->fFont = SkRef(font);
rec->fFontID = fontID;
rec->fGlyphID = fGlyphID;
}
////////////////////////////////////////////////////////////////////////////////
SkPDFFunctionShader* SkPDFCanon::findFunctionShader(
const SkPDFShader::State& state) const {
return find_item(fFunctionShaderRecords, state);
}
void SkPDFCanon::addFunctionShader(SkPDFFunctionShader* pdfShader) {
fFunctionShaderRecords.push(SkRef(pdfShader));
}
////////////////////////////////////////////////////////////////////////////////
SkPDFAlphaFunctionShader* SkPDFCanon::findAlphaShader(
const SkPDFShader::State& state) const {
return find_item(fAlphaShaderRecords, state);
}
void SkPDFCanon::addAlphaShader(SkPDFAlphaFunctionShader* pdfShader) {
fAlphaShaderRecords.push(SkRef(pdfShader));
}
////////////////////////////////////////////////////////////////////////////////
SkPDFImageShader* SkPDFCanon::findImageShader(
const SkPDFShader::State& state) const {
return find_item(fImageShaderRecords, state);
}
void SkPDFCanon::addImageShader(SkPDFImageShader* pdfShader) {
fImageShaderRecords.push(SkRef(pdfShader));
}
////////////////////////////////////////////////////////////////////////////////
const SkPDFGraphicState* SkPDFCanon::findGraphicState(
const SkPDFGraphicState& key) const {
const WrapGS* ptr = fGraphicStateRecords.find(WrapGS(&key));
return ptr ? ptr->fPtr : nullptr;
}
void SkPDFCanon::addGraphicState(const SkPDFGraphicState* state) {
SkASSERT(state);
WrapGS w(SkRef(state));
SkASSERT(!fGraphicStateRecords.contains(w));
fGraphicStateRecords.add(w);
}
////////////////////////////////////////////////////////////////////////////////
sk_sp<SkPDFObject> SkPDFCanon::findPDFBitmap(SkBitmapKey key) const {
SkPDFObject** ptr = fPDFBitmapMap.find(key);
return ptr ? sk_ref_sp(*ptr) : sk_sp<SkPDFObject>();
}
void SkPDFCanon::addPDFBitmap(SkBitmapKey key, sk_sp<SkPDFObject> pdfBitmap) {
fPDFBitmapMap.set(key, pdfBitmap.release());
}
////////////////////////////////////////////////////////////////////////////////
sk_sp<SkPDFStream> SkPDFCanon::makeInvertFunction() {
if (fInvertFunction) {
return fInvertFunction;
}
fInvertFunction = SkPDFGraphicState::MakeInvertFunction();
return fInvertFunction;
}
sk_sp<SkPDFDict> SkPDFCanon::makeNoSmaskGraphicState() {
if (fNoSmaskGraphicState) {
return fNoSmaskGraphicState;
}
fNoSmaskGraphicState = SkPDFGraphicState::MakeNoSmaskGraphicState();
return fNoSmaskGraphicState;
}
sk_sp<SkPDFArray> SkPDFCanon::makeRangeObject() {
if (fRangeObject) {
return fRangeObject;
}
fRangeObject = SkPDFShader::MakeRangeObject();
return fRangeObject;
}
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