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Unified Diff: core/fpdfapi/fpdf_page/fpdf_page.cpp

Issue 1811053002: Move core/include/fpdfapi/fpdf_pageobj.h into core/fpdfapi. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: core/fpdfapi/fpdf_page/fpdf_page.cpp
diff --git a/core/fpdfapi/fpdf_page/fpdf_page.cpp b/core/fpdfapi/fpdf_page/fpdf_page.cpp
deleted file mode 100644
index ad54e320bc23c65e459ca8fae97889009b04d4f3..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_page/fpdf_page.cpp
+++ /dev/null
@@ -1,636 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/fpdfapi/fpdf_page/pageint.h"
-
-#include <algorithm>
-
-#include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
-#include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
-#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
-#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
-#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
-#include "core/fpdfapi/include/cpdf_modulemgr.h"
-#include "core/fpdfapi/ipdf_rendermodule.h"
-#include "third_party/base/stl_util.h"
-
-CPDF_PageObject::CPDF_PageObject() {}
-
-CPDF_PageObject::~CPDF_PageObject() {}
-
-void CPDF_PageObject::CopyData(const CPDF_PageObject* pSrc) {
- CopyStates(*pSrc);
- m_Left = pSrc->m_Left;
- m_Right = pSrc->m_Right;
- m_Top = pSrc->m_Top;
- m_Bottom = pSrc->m_Bottom;
-}
-
-void CPDF_PageObject::TransformClipPath(CFX_Matrix& matrix) {
- if (m_ClipPath.IsNull()) {
- return;
- }
- m_ClipPath.GetModify();
- m_ClipPath.Transform(matrix);
-}
-
-void CPDF_PageObject::TransformGeneralState(CFX_Matrix& matrix) {
- if (m_GeneralState.IsNull()) {
- return;
- }
- CPDF_GeneralStateData* pGS = m_GeneralState.GetModify();
- pGS->m_Matrix.Concat(matrix);
-}
-
-FX_RECT CPDF_PageObject::GetBBox(const CFX_Matrix* pMatrix) const {
- CFX_FloatRect rect(m_Left, m_Bottom, m_Right, m_Top);
- if (pMatrix) {
- pMatrix->TransformRect(rect);
- }
- return rect.GetOutterRect();
-}
-
-CPDF_TextObject::CPDF_TextObject()
- : m_PosX(0),
- m_PosY(0),
- m_nChars(0),
- m_pCharCodes(nullptr),
- m_pCharPos(nullptr) {}
-
-CPDF_TextObject::~CPDF_TextObject() {
- if (m_nChars > 1) {
- FX_Free(m_pCharCodes);
- }
- FX_Free(m_pCharPos);
-}
-
-void CPDF_TextObject::GetItemInfo(int index, CPDF_TextObjectItem* pInfo) const {
- pInfo->m_CharCode =
- m_nChars == 1 ? (FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[index];
- pInfo->m_OriginX = index ? m_pCharPos[index - 1] : 0;
- pInfo->m_OriginY = 0;
- if (pInfo->m_CharCode == -1) {
- return;
- }
- CPDF_Font* pFont = m_TextState.GetFont();
- if (!pFont->IsCIDFont()) {
- return;
- }
- if (!pFont->AsCIDFont()->IsVertWriting()) {
- return;
- }
- FX_WORD CID = pFont->AsCIDFont()->CIDFromCharCode(pInfo->m_CharCode);
- pInfo->m_OriginY = pInfo->m_OriginX;
- pInfo->m_OriginX = 0;
- short vx, vy;
- pFont->AsCIDFont()->GetVertOrigin(CID, vx, vy);
- FX_FLOAT fontsize = m_TextState.GetFontSize();
- pInfo->m_OriginX -= fontsize * vx / 1000;
- pInfo->m_OriginY -= fontsize * vy / 1000;
-}
-
-int CPDF_TextObject::CountChars() const {
- if (m_nChars == 1) {
- return 1;
- }
- int count = 0;
- for (int i = 0; i < m_nChars; ++i)
- if (m_pCharCodes[i] != (FX_DWORD)-1) {
- ++count;
- }
- return count;
-}
-
-void CPDF_TextObject::GetCharInfo(int index,
- FX_DWORD& charcode,
- FX_FLOAT& kerning) const {
- if (m_nChars == 1) {
- charcode = (FX_DWORD)(uintptr_t)m_pCharCodes;
- kerning = 0;
- return;
- }
- int count = 0;
- for (int i = 0; i < m_nChars; ++i) {
- if (m_pCharCodes[i] != (FX_DWORD)-1) {
- if (count == index) {
- charcode = m_pCharCodes[i];
- if (i == m_nChars - 1 || m_pCharCodes[i + 1] != (FX_DWORD)-1) {
- kerning = 0;
- } else {
- kerning = m_pCharPos[i];
- }
- return;
- }
- ++count;
- }
- }
-}
-
-void CPDF_TextObject::GetCharInfo(int index, CPDF_TextObjectItem* pInfo) const {
- if (m_nChars == 1) {
- GetItemInfo(0, pInfo);
- return;
- }
- int count = 0;
- for (int i = 0; i < m_nChars; ++i) {
- FX_DWORD charcode = m_pCharCodes[i];
- if (charcode == (FX_DWORD)-1) {
- continue;
- }
- if (count == index) {
- GetItemInfo(i, pInfo);
- break;
- }
- ++count;
- }
-}
-
-CPDF_TextObject* CPDF_TextObject::Clone() const {
- CPDF_TextObject* obj = new CPDF_TextObject;
- obj->CopyData(this);
-
- obj->m_nChars = m_nChars;
- if (m_nChars > 1) {
- obj->m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
- FXSYS_memcpy(obj->m_pCharCodes, m_pCharCodes, m_nChars * sizeof(FX_DWORD));
- obj->m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
- FXSYS_memcpy(obj->m_pCharPos, m_pCharPos,
- (m_nChars - 1) * sizeof(FX_FLOAT));
- } else {
- obj->m_pCharCodes = m_pCharCodes;
- }
- obj->m_PosX = m_PosX;
- obj->m_PosY = m_PosY;
- return obj;
-}
-
-void CPDF_TextObject::GetTextMatrix(CFX_Matrix* pMatrix) const {
- FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
- pMatrix->Set(pTextMatrix[0], pTextMatrix[2], pTextMatrix[1], pTextMatrix[3],
- m_PosX, m_PosY);
-}
-
-void CPDF_TextObject::SetSegments(const CFX_ByteString* pStrs,
- FX_FLOAT* pKerning,
- int nsegs) {
- if (m_nChars > 1) {
- FX_Free(m_pCharCodes);
- m_pCharCodes = nullptr;
- }
- FX_Free(m_pCharPos);
- m_pCharPos = nullptr;
- CPDF_Font* pFont = m_TextState.GetFont();
- m_nChars = 0;
- for (int i = 0; i < nsegs; ++i) {
- m_nChars += pFont->CountChar(pStrs[i], pStrs[i].GetLength());
- }
- m_nChars += nsegs - 1;
- if (m_nChars > 1) {
- m_pCharCodes = FX_Alloc(FX_DWORD, m_nChars);
- m_pCharPos = FX_Alloc(FX_FLOAT, m_nChars - 1);
- int index = 0;
- for (int i = 0; i < nsegs; ++i) {
- const FX_CHAR* segment = pStrs[i];
- int offset = 0, len = pStrs[i].GetLength();
- while (offset < len) {
- m_pCharCodes[index++] = pFont->GetNextChar(segment, len, offset);
- }
- if (i != nsegs - 1) {
- m_pCharPos[index - 1] = pKerning[i];
- m_pCharCodes[index++] = (FX_DWORD)-1;
- }
- }
- } else {
- int offset = 0;
- m_pCharCodes = (FX_DWORD*)(uintptr_t)pFont->GetNextChar(
- pStrs[0], pStrs[0].GetLength(), offset);
- }
-}
-
-void CPDF_TextObject::SetText(const CFX_ByteString& str) {
- SetSegments(&str, nullptr, 1);
- RecalcPositionData();
-}
-
-FX_FLOAT CPDF_TextObject::GetCharWidth(FX_DWORD charcode) const {
- FX_FLOAT fontsize = m_TextState.GetFontSize() / 1000;
- CPDF_Font* pFont = m_TextState.GetFont();
- FX_BOOL bVertWriting = FALSE;
- CPDF_CIDFont* pCIDFont = pFont->AsCIDFont();
- if (pCIDFont) {
- bVertWriting = pCIDFont->IsVertWriting();
- }
- if (!bVertWriting)
- return pFont->GetCharWidthF(charcode, 0) * fontsize;
-
- FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
- return pCIDFont->GetVertWidth(CID) * fontsize;
-}
-
-void CPDF_TextObject::CalcPositionData(FX_FLOAT* pTextAdvanceX,
- FX_FLOAT* pTextAdvanceY,
- FX_FLOAT horz_scale,
- int level) {
- FX_FLOAT curpos = 0;
- FX_FLOAT min_x = 10000 * 1.0f;
- FX_FLOAT max_x = -10000 * 1.0f;
- FX_FLOAT min_y = 10000 * 1.0f;
- FX_FLOAT max_y = -10000 * 1.0f;
- CPDF_Font* pFont = m_TextState.GetFont();
- FX_BOOL bVertWriting = FALSE;
- CPDF_CIDFont* pCIDFont = pFont->AsCIDFont();
- if (pCIDFont) {
- bVertWriting = pCIDFont->IsVertWriting();
- }
- FX_FLOAT fontsize = m_TextState.GetFontSize();
- for (int i = 0; i < m_nChars; ++i) {
- FX_DWORD charcode =
- m_nChars == 1 ? (FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[i];
- if (i > 0) {
- if (charcode == (FX_DWORD)-1) {
- curpos -= (m_pCharPos[i - 1] * fontsize) / 1000;
- continue;
- }
- m_pCharPos[i - 1] = curpos;
- }
- FX_RECT char_rect = pFont->GetCharBBox(charcode, level);
- FX_FLOAT charwidth;
- if (!bVertWriting) {
- if (min_y > char_rect.top) {
- min_y = (FX_FLOAT)char_rect.top;
- }
- if (max_y < char_rect.top) {
- max_y = (FX_FLOAT)char_rect.top;
- }
- if (min_y > char_rect.bottom) {
- min_y = (FX_FLOAT)char_rect.bottom;
- }
- if (max_y < char_rect.bottom) {
- max_y = (FX_FLOAT)char_rect.bottom;
- }
- FX_FLOAT char_left = curpos + char_rect.left * fontsize / 1000;
- FX_FLOAT char_right = curpos + char_rect.right * fontsize / 1000;
- if (min_x > char_left) {
- min_x = char_left;
- }
- if (max_x < char_left) {
- max_x = char_left;
- }
- if (min_x > char_right) {
- min_x = char_right;
- }
- if (max_x < char_right) {
- max_x = char_right;
- }
- charwidth = pFont->GetCharWidthF(charcode, level) * fontsize / 1000;
- } else {
- FX_WORD CID = pCIDFont->CIDFromCharCode(charcode);
- short vx;
- short vy;
- pCIDFont->GetVertOrigin(CID, vx, vy);
- char_rect.left -= vx;
- char_rect.right -= vx;
- char_rect.top -= vy;
- char_rect.bottom -= vy;
- if (min_x > char_rect.left) {
- min_x = (FX_FLOAT)char_rect.left;
- }
- if (max_x < char_rect.left) {
- max_x = (FX_FLOAT)char_rect.left;
- }
- if (min_x > char_rect.right) {
- min_x = (FX_FLOAT)char_rect.right;
- }
- if (max_x < char_rect.right) {
- max_x = (FX_FLOAT)char_rect.right;
- }
- FX_FLOAT char_top = curpos + char_rect.top * fontsize / 1000;
- FX_FLOAT char_bottom = curpos + char_rect.bottom * fontsize / 1000;
- if (min_y > char_top) {
- min_y = char_top;
- }
- if (max_y < char_top) {
- max_y = char_top;
- }
- if (min_y > char_bottom) {
- min_y = char_bottom;
- }
- if (max_y < char_bottom) {
- max_y = char_bottom;
- }
- charwidth = pCIDFont->GetVertWidth(CID) * fontsize / 1000;
- }
- curpos += charwidth;
- if (charcode == ' ' && (!pCIDFont || pCIDFont->GetCharSize(32) == 1)) {
- curpos += m_TextState.GetObject()->m_WordSpace;
- }
- curpos += m_TextState.GetObject()->m_CharSpace;
- }
- if (bVertWriting) {
- if (pTextAdvanceX) {
- *pTextAdvanceX = 0;
- }
- if (pTextAdvanceY) {
- *pTextAdvanceY = curpos;
- }
- min_x = min_x * fontsize / 1000;
- max_x = max_x * fontsize / 1000;
- } else {
- if (pTextAdvanceX) {
- *pTextAdvanceX = curpos * horz_scale;
- }
- if (pTextAdvanceY) {
- *pTextAdvanceY = 0;
- }
- min_y = min_y * fontsize / 1000;
- max_y = max_y * fontsize / 1000;
- }
- CFX_Matrix matrix;
- GetTextMatrix(&matrix);
- m_Left = min_x;
- m_Right = max_x;
- m_Bottom = min_y;
- m_Top = max_y;
- matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
- int textmode = m_TextState.GetObject()->m_TextMode;
- if (textmode == 1 || textmode == 2 || textmode == 5 || textmode == 6) {
- FX_FLOAT half_width = m_GraphState.GetObject()->m_LineWidth / 2;
- m_Left -= half_width;
- m_Right += half_width;
- m_Top += half_width;
- m_Bottom -= half_width;
- }
-}
-
-void CPDF_TextObject::Transform(const CFX_Matrix& matrix) {
- m_TextState.GetModify();
- CFX_Matrix text_matrix;
- GetTextMatrix(&text_matrix);
- text_matrix.Concat(matrix);
- FX_FLOAT* pTextMatrix = m_TextState.GetMatrix();
- pTextMatrix[0] = text_matrix.GetA();
- pTextMatrix[1] = text_matrix.GetC();
- pTextMatrix[2] = text_matrix.GetB();
- pTextMatrix[3] = text_matrix.GetD();
- m_PosX = text_matrix.GetE();
- m_PosY = text_matrix.GetF();
- CalcPositionData(nullptr, nullptr, 0);
-}
-
-void CPDF_TextObject::SetPosition(FX_FLOAT x, FX_FLOAT y) {
- FX_FLOAT dx = x - m_PosX;
- FX_FLOAT dy = y - m_PosY;
- m_PosX = x;
- m_PosY = y;
- m_Left += dx;
- m_Right += dx;
- m_Top += dy;
- m_Bottom += dy;
-}
-
-CPDF_ShadingObject::CPDF_ShadingObject() : m_pShading(nullptr) {}
-
-CPDF_ShadingObject::~CPDF_ShadingObject() {}
-
-CPDF_ShadingObject* CPDF_ShadingObject::Clone() const {
- CPDF_ShadingObject* obj = new CPDF_ShadingObject;
- obj->CopyData(this);
-
- obj->m_pShading = m_pShading;
- if (obj->m_pShading && obj->m_pShading->m_pDocument) {
- CPDF_DocPageData* pDocPageData =
- obj->m_pShading->m_pDocument->GetPageData();
- obj->m_pShading = (CPDF_ShadingPattern*)pDocPageData->GetPattern(
- obj->m_pShading->m_pShadingObj, m_pShading->m_bShadingObj,
- &obj->m_pShading->m_ParentMatrix);
- }
- obj->m_Matrix = m_Matrix;
- return obj;
-}
-
-void CPDF_ShadingObject::Transform(const CFX_Matrix& matrix) {
- if (!m_ClipPath.IsNull()) {
- m_ClipPath.GetModify();
- m_ClipPath.Transform(matrix);
- }
- m_Matrix.Concat(matrix);
- if (!m_ClipPath.IsNull()) {
- CalcBoundingBox();
- } else {
- matrix.TransformRect(m_Left, m_Right, m_Top, m_Bottom);
- }
-}
-
-void CPDF_ShadingObject::CalcBoundingBox() {
- if (m_ClipPath.IsNull()) {
- return;
- }
- CFX_FloatRect rect = m_ClipPath.GetClipBox();
- m_Left = rect.left;
- m_Bottom = rect.bottom;
- m_Right = rect.right;
- m_Top = rect.top;
-}
-
-CPDF_FormObject::CPDF_FormObject() : m_pForm(nullptr) {}
-
-CPDF_FormObject::~CPDF_FormObject() {
- delete m_pForm;
-}
-
-void CPDF_FormObject::Transform(const CFX_Matrix& matrix) {
- m_FormMatrix.Concat(matrix);
- CalcBoundingBox();
-}
-
-CPDF_FormObject* CPDF_FormObject::Clone() const {
- CPDF_FormObject* obj = new CPDF_FormObject;
- obj->CopyData(this);
-
- obj->m_pForm = m_pForm->Clone();
- obj->m_FormMatrix = m_FormMatrix;
- return obj;
-}
-
-void CPDF_FormObject::CalcBoundingBox() {
- CFX_FloatRect form_rect = m_pForm->CalcBoundingBox();
- form_rect.Transform(&m_FormMatrix);
- m_Left = form_rect.left;
- m_Bottom = form_rect.bottom;
- m_Right = form_rect.right;
- m_Top = form_rect.top;
-}
-
-CPDF_Page::CPDF_Page() : m_pPageRender(nullptr) {}
-
-void CPDF_Page::Load(CPDF_Document* pDocument,
- CPDF_Dictionary* pPageDict,
- FX_BOOL bPageCache) {
- m_pDocument = (CPDF_Document*)pDocument;
- m_pFormDict = pPageDict;
- if (bPageCache) {
- m_pPageRender =
- CPDF_ModuleMgr::Get()->GetRenderModule()->CreatePageCache(this);
- }
- if (!pPageDict) {
- m_PageWidth = m_PageHeight = 100 * 1.0f;
- m_pPageResources = m_pResources = NULL;
- return;
- }
- CPDF_Object* pageAttr = GetPageAttr("Resources");
- m_pResources = pageAttr ? pageAttr->GetDict() : NULL;
- m_pPageResources = m_pResources;
- CPDF_Object* pRotate = GetPageAttr("Rotate");
- int rotate = 0;
- if (pRotate) {
- rotate = pRotate->GetInteger() / 90 % 4;
- }
- if (rotate < 0) {
- rotate += 4;
- }
- CPDF_Array* pMediaBox = ToArray(GetPageAttr("MediaBox"));
- CFX_FloatRect mediabox;
- if (pMediaBox) {
- mediabox = pMediaBox->GetRect();
- mediabox.Normalize();
- }
- if (mediabox.IsEmpty()) {
- mediabox = CFX_FloatRect(0, 0, 612, 792);
- }
-
- CPDF_Array* pCropBox = ToArray(GetPageAttr("CropBox"));
- if (pCropBox) {
- m_BBox = pCropBox->GetRect();
- m_BBox.Normalize();
- }
- if (m_BBox.IsEmpty()) {
- m_BBox = mediabox;
- } else {
- m_BBox.Intersect(mediabox);
- }
- if (rotate % 2) {
- m_PageHeight = m_BBox.right - m_BBox.left;
- m_PageWidth = m_BBox.top - m_BBox.bottom;
- } else {
- m_PageWidth = m_BBox.right - m_BBox.left;
- m_PageHeight = m_BBox.top - m_BBox.bottom;
- }
- switch (rotate) {
- case 0:
- m_PageMatrix.Set(1.0f, 0, 0, 1.0f, -m_BBox.left, -m_BBox.bottom);
- break;
- case 1:
- m_PageMatrix.Set(0, -1.0f, 1.0f, 0, -m_BBox.bottom, m_BBox.right);
- break;
- case 2:
- m_PageMatrix.Set(-1.0f, 0, 0, -1.0f, m_BBox.right, m_BBox.top);
- break;
- case 3:
- m_PageMatrix.Set(0, 1.0f, -1.0f, 0, m_BBox.top, -m_BBox.left);
- break;
- }
- m_Transparency = PDFTRANS_ISOLATED;
- LoadTransInfo();
-}
-
-void CPDF_Page::StartParse(CPDF_ParseOptions* pOptions) {
- if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING) {
- return;
- }
- m_pParser.reset(new CPDF_ContentParser);
- m_pParser->Start(this, pOptions);
- m_ParseState = CONTENT_PARSING;
-}
-
-void CPDF_Page::ParseContent(CPDF_ParseOptions* pOptions) {
- StartParse(pOptions);
- ContinueParse(nullptr);
-}
-
-CPDF_Page::~CPDF_Page() {
- if (m_pPageRender) {
- IPDF_RenderModule* pModule = CPDF_ModuleMgr::Get()->GetRenderModule();
- pModule->DestroyPageCache(m_pPageRender);
- }
-}
-
-CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict,
- const CFX_ByteStringC& name) {
- int level = 0;
- while (1) {
- CPDF_Object* pObj = pPageDict->GetElementValue(name);
- if (pObj) {
- return pObj;
- }
- CPDF_Dictionary* pParent = pPageDict->GetDictBy("Parent");
- if (!pParent || pParent == pPageDict) {
- return NULL;
- }
- pPageDict = pParent;
- level++;
- if (level == 1000) {
- return NULL;
- }
- }
-}
-
-CPDF_Object* CPDF_Page::GetPageAttr(const CFX_ByteStringC& name) const {
- return FPDFAPI_GetPageAttr(m_pFormDict, name);
-}
-
-void CPDF_Page::GetDisplayMatrix(CFX_Matrix& matrix,
- int xPos,
- int yPos,
- int xSize,
- int ySize,
- int iRotate) const {
- if (m_PageWidth == 0 || m_PageHeight == 0) {
- return;
- }
- CFX_Matrix display_matrix;
- int x0, y0, x1, y1, x2, y2;
- iRotate %= 4;
- switch (iRotate) {
- case 0:
- x0 = xPos;
- y0 = yPos + ySize;
- x1 = xPos;
- y1 = yPos;
- x2 = xPos + xSize;
- y2 = yPos + ySize;
- break;
- case 1:
- x0 = xPos;
- y0 = yPos;
- x1 = xPos + xSize;
- y1 = yPos;
- x2 = xPos;
- y2 = yPos + ySize;
- break;
- case 2:
- x0 = xPos + xSize;
- y0 = yPos;
- x1 = xPos + xSize;
- y1 = yPos + ySize;
- x2 = xPos;
- y2 = yPos;
- break;
- case 3:
- x0 = xPos + xSize;
- y0 = yPos + ySize;
- x1 = xPos;
- y1 = yPos + ySize;
- x2 = xPos + xSize;
- y2 = yPos;
- break;
- }
- display_matrix.Set(
- ((FX_FLOAT)(x2 - x0)) / m_PageWidth, ((FX_FLOAT)(y2 - y0)) / m_PageWidth,
- ((FX_FLOAT)(x1 - x0)) / m_PageHeight,
- ((FX_FLOAT)(y1 - y0)) / m_PageHeight, (FX_FLOAT)x0, (FX_FLOAT)y0);
- matrix = m_PageMatrix;
- matrix.Concat(display_matrix);
-}
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