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author | Dan Sinclair <dsinclair@chromium.org> | 2017-07-10 15:14:26 -0400 |
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committer | Chromium commit bot <commit-bot@chromium.org> | 2017-07-10 19:28:59 +0000 |
commit | 92e2276a8be492fd2be8e44a5d62e8a5879644d8 (patch) | |
tree | 0945f5edda0fbfb461ca1cae89a20adb583242e4 /core/fxge/ge/cfx_font.cpp | |
parent | 1437643bfaca635d52f4cb9ec41e3075cf893f79 (diff) | |
download | pdfium-92e2276a8be492fd2be8e44a5d62e8a5879644d8.tar.xz |
Move core/fxge/ge to core/fxge.
This brings the cpp and h files together and removes the
redundant ge/ path.
Change-Id: I36594b8ae719d362768ba4c2e4ce173e287363eb
Reviewed-on: https://pdfium-review.googlesource.com/7452
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxge/ge/cfx_font.cpp')
-rw-r--r-- | core/fxge/ge/cfx_font.cpp | 658 |
1 files changed, 0 insertions, 658 deletions
diff --git a/core/fxge/ge/cfx_font.cpp b/core/fxge/ge/cfx_font.cpp deleted file mode 100644 index 144675cdbd..0000000000 --- a/core/fxge/ge/cfx_font.cpp +++ /dev/null @@ -1,658 +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/fxge/fx_font.h" - -#include <algorithm> -#include <limits> -#include <memory> -#include <utility> -#include <vector> - -#include "core/fpdfapi/font/cpdf_font.h" -#include "core/fxcrt/fx_codepage.h" -#include "core/fxge/cfx_facecache.h" -#include "core/fxge/cfx_fontcache.h" -#include "core/fxge/cfx_fontmgr.h" -#include "core/fxge/cfx_gemodule.h" -#include "core/fxge/cfx_pathdata.h" -#include "core/fxge/cfx_substfont.h" -#include "core/fxge/fx_freetype.h" -#include "core/fxge/ge/fx_text_int.h" -#include "third_party/base/ptr_util.h" - -#define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em) - -namespace { - -struct OUTLINE_PARAMS { - CFX_PathData* m_pPath; - int m_CurX; - int m_CurY; - float m_CoordUnit; -}; - -#ifdef PDF_ENABLE_XFA - -unsigned long FTStreamRead(FXFT_Stream stream, - unsigned long offset, - unsigned char* buffer, - unsigned long count) { - if (count == 0) - return 0; - - IFX_SeekableReadStream* pFile = - static_cast<IFX_SeekableReadStream*>(stream->descriptor.pointer); - return pFile && pFile->ReadBlock(buffer, offset, count) ? count : 0; -} - -void FTStreamClose(FXFT_Stream stream) {} - -bool LoadFileImp(FXFT_Library library, - FXFT_Face* Face, - const CFX_RetainPtr<IFX_SeekableReadStream>& pFile, - int32_t faceIndex, - std::unique_ptr<FXFT_StreamRec>* stream) { - auto stream1 = pdfium::MakeUnique<FXFT_StreamRec>(); - stream1->base = nullptr; - stream1->size = static_cast<unsigned long>(pFile->GetSize()); - stream1->pos = 0; - stream1->descriptor.pointer = static_cast<void*>(pFile.Get()); - stream1->close = FTStreamClose; - stream1->read = FTStreamRead; - FXFT_Open_Args args; - args.flags = FT_OPEN_STREAM; - args.stream = stream1.get(); - if (FXFT_Open_Face(library, &args, faceIndex, Face)) - return false; - if (stream) - *stream = std::move(stream1); - return true; -} -#endif // PDF_ENABLE_XFA - -FXFT_Face FT_LoadFont(const uint8_t* pData, int size) { - return CFX_GEModule::Get()->GetFontMgr()->GetFixedFace(pData, size, 0); -} - -void Outline_CheckEmptyContour(OUTLINE_PARAMS* param) { - std::vector<FX_PATHPOINT>& points = param->m_pPath->GetPoints(); - size_t size = points.size(); - - if (size >= 2 && points[size - 2].IsTypeAndOpen(FXPT_TYPE::MoveTo) && - points[size - 2].m_Point == points[size - 1].m_Point) { - size -= 2; - } - if (size >= 4 && points[size - 4].IsTypeAndOpen(FXPT_TYPE::MoveTo) && - points[size - 3].IsTypeAndOpen(FXPT_TYPE::BezierTo) && - points[size - 3].m_Point == points[size - 4].m_Point && - points[size - 2].m_Point == points[size - 4].m_Point && - points[size - 1].m_Point == points[size - 4].m_Point) { - size -= 4; - } - points.resize(size); -} - -int Outline_MoveTo(const FXFT_Vector* to, void* user) { - OUTLINE_PARAMS* param = static_cast<OUTLINE_PARAMS*>(user); - - Outline_CheckEmptyContour(param); - - param->m_pPath->ClosePath(); - param->m_pPath->AppendPoint( - CFX_PointF(to->x / param->m_CoordUnit, to->y / param->m_CoordUnit), - FXPT_TYPE::MoveTo, false); - - param->m_CurX = to->x; - param->m_CurY = to->y; - return 0; -} - -int Outline_LineTo(const FXFT_Vector* to, void* user) { - OUTLINE_PARAMS* param = static_cast<OUTLINE_PARAMS*>(user); - - param->m_pPath->AppendPoint( - CFX_PointF(to->x / param->m_CoordUnit, to->y / param->m_CoordUnit), - FXPT_TYPE::LineTo, false); - - param->m_CurX = to->x; - param->m_CurY = to->y; - return 0; -} - -int Outline_ConicTo(const FXFT_Vector* control, - const FXFT_Vector* to, - void* user) { - OUTLINE_PARAMS* param = static_cast<OUTLINE_PARAMS*>(user); - - param->m_pPath->AppendPoint( - CFX_PointF((param->m_CurX + (control->x - param->m_CurX) * 2 / 3) / - param->m_CoordUnit, - (param->m_CurY + (control->y - param->m_CurY) * 2 / 3) / - param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_pPath->AppendPoint( - CFX_PointF((control->x + (to->x - control->x) / 3) / param->m_CoordUnit, - (control->y + (to->y - control->y) / 3) / param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_pPath->AppendPoint( - CFX_PointF(to->x / param->m_CoordUnit, to->y / param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_CurX = to->x; - param->m_CurY = to->y; - return 0; -} - -int Outline_CubicTo(const FXFT_Vector* control1, - const FXFT_Vector* control2, - const FXFT_Vector* to, - void* user) { - OUTLINE_PARAMS* param = static_cast<OUTLINE_PARAMS*>(user); - - param->m_pPath->AppendPoint(CFX_PointF(control1->x / param->m_CoordUnit, - control1->y / param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_pPath->AppendPoint(CFX_PointF(control2->x / param->m_CoordUnit, - control2->y / param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_pPath->AppendPoint( - CFX_PointF(to->x / param->m_CoordUnit, to->y / param->m_CoordUnit), - FXPT_TYPE::BezierTo, false); - - param->m_CurX = to->x; - param->m_CurY = to->y; - return 0; -} - -} // namespace - -const char CFX_Font::s_AngleSkew[] = { - 0, 2, 3, 5, 7, 9, 11, 12, 14, 16, 18, 19, 21, 23, 25, - 27, 29, 31, 32, 34, 36, 38, 40, 42, 45, 47, 49, 51, 53, 55, -}; - -const uint8_t CFX_Font::s_WeightPow[] = { - 0, 3, 6, 7, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, - 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 35, 36, 36, 37, - 37, 37, 38, 38, 38, 39, 39, 39, 40, 40, 40, 41, 41, 41, 42, 42, 42, - 42, 43, 43, 43, 44, 44, 44, 44, 45, 45, 45, 45, 46, 46, 46, 46, 47, - 47, 47, 47, 48, 48, 48, 48, 48, 49, 49, 49, 49, 50, 50, 50, 50, 50, - 51, 51, 51, 51, 51, 52, 52, 52, 52, 52, 53, 53, 53, 53, 53, -}; - -const uint8_t CFX_Font::s_WeightPow_11[] = { - 0, 4, 7, 8, 9, 10, 12, 13, 15, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 39, 40, 40, 41, - 41, 41, 42, 42, 42, 43, 43, 43, 44, 44, 44, 45, 45, 45, 46, 46, 46, - 46, 43, 47, 47, 48, 48, 48, 48, 45, 50, 50, 50, 46, 51, 51, 51, 52, - 52, 52, 52, 53, 53, 53, 53, 53, 54, 54, 54, 54, 55, 55, 55, 55, 55, - 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, -}; - -const uint8_t CFX_Font::s_WeightPow_SHIFTJIS[] = { - 0, 0, 1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 21, - 22, 24, 26, 28, 30, 32, 33, 35, 37, 39, 41, 43, 45, 48, 48, 48, 48, - 49, 49, 49, 50, 50, 50, 50, 51, 51, 51, 51, 52, 52, 52, 52, 52, 53, - 53, 53, 53, 53, 54, 54, 54, 54, 54, 55, 55, 55, 55, 55, 56, 56, 56, - 56, 56, 56, 57, 57, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 58, - 59, 59, 59, 59, 59, 59, 59, 60, 60, 60, 60, 60, 60, 60, 60, -}; - -CFX_Font::CFX_Font() - : -#ifdef PDF_ENABLE_XFA - m_bShallowCopy(false), - m_pOwnedStream(nullptr), -#endif // PDF_ENABLE_XFA - m_Face(nullptr), - m_FaceCache(nullptr), - m_pFontData(nullptr), - m_pGsubData(nullptr), - m_dwSize(0), -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - m_pPlatformFont(nullptr), -#endif - m_bEmbedded(false), - m_bVertical(false) { -} - -#ifdef PDF_ENABLE_XFA -bool CFX_Font::LoadClone(const CFX_Font* pFont) { - if (!pFont) - return false; - - m_bShallowCopy = true; - if (pFont->m_pSubstFont) { - m_pSubstFont = pdfium::MakeUnique<CFX_SubstFont>(); - m_pSubstFont->m_Charset = pFont->m_pSubstFont->m_Charset; - m_pSubstFont->m_SubstFlags = pFont->m_pSubstFont->m_SubstFlags; - m_pSubstFont->m_Weight = pFont->m_pSubstFont->m_Weight; - m_pSubstFont->m_Family = pFont->m_pSubstFont->m_Family; - m_pSubstFont->m_ItalicAngle = pFont->m_pSubstFont->m_ItalicAngle; - } - m_Face = pFont->m_Face; - m_bEmbedded = pFont->m_bEmbedded; - m_bVertical = pFont->m_bVertical; - m_dwSize = pFont->m_dwSize; - m_pFontData = pFont->m_pFontData; - m_pGsubData = pFont->m_pGsubData; -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ - m_pPlatformFont = pFont->m_pPlatformFont; -#endif - m_pOwnedStream = pFont->m_pOwnedStream; - m_FaceCache = pFont->GetFaceCache(); - return true; -} - -void CFX_Font::SetFace(FXFT_Face face) { - ClearFaceCache(); - m_Face = face; -} - -#endif // PDF_ENABLE_XFA - -CFX_Font::~CFX_Font() { -#ifdef PDF_ENABLE_XFA - if (m_bShallowCopy) - return; -#endif // PDF_ENABLE_XFA - if (m_Face) { -#ifndef PDF_ENABLE_XFA - if (FXFT_Get_Face_External_Stream(m_Face)) { - FXFT_Clear_Face_External_Stream(m_Face); - } -#endif // PDF_ENABLE_XFA - DeleteFace(); - } -#ifdef PDF_ENABLE_XFA - delete m_pOwnedStream; -#endif // PDF_ENABLE_XFA - FX_Free(m_pGsubData); -#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ && !defined _SKIA_SUPPORT_ - ReleasePlatformResource(); -#endif -} - -void CFX_Font::DeleteFace() { - ClearFaceCache(); - if (m_bEmbedded) - FXFT_Done_Face(m_Face); - else - CFX_GEModule::Get()->GetFontMgr()->ReleaseFace(m_Face); - m_Face = nullptr; -} - -void CFX_Font::LoadSubst(const CFX_ByteString& face_name, - bool bTrueType, - uint32_t flags, - int weight, - int italic_angle, - int CharsetCP, - bool bVertical) { - m_bEmbedded = false; - m_bVertical = bVertical; - m_pSubstFont = pdfium::MakeUnique<CFX_SubstFont>(); - m_Face = CFX_GEModule::Get()->GetFontMgr()->FindSubstFont( - face_name, bTrueType, flags, weight, italic_angle, CharsetCP, - m_pSubstFont.get()); - if (m_Face) { - m_pFontData = FXFT_Get_Face_Stream_Base(m_Face); - m_dwSize = FXFT_Get_Face_Stream_Size(m_Face); - } -} - -#ifdef PDF_ENABLE_XFA -bool CFX_Font::LoadFile(const CFX_RetainPtr<IFX_SeekableReadStream>& pFile, - int nFaceIndex) { - m_bEmbedded = false; - - CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr(); - pFontMgr->InitFTLibrary(); - - FXFT_Library library = pFontMgr->GetFTLibrary(); - std::unique_ptr<FXFT_StreamRec> stream; - if (!LoadFileImp(library, &m_Face, pFile, nFaceIndex, &stream)) - return false; - - m_pOwnedStream = stream.release(); - FXFT_Set_Pixel_Sizes(m_Face, 0, 64); - return true; -} -#endif // PDF_ENABLE_XFA - -int CFX_Font::GetGlyphWidth(uint32_t glyph_index) { - if (!m_Face) - return 0; - if (m_pSubstFont && (m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM)) - AdjustMMParams(glyph_index, 0, 0); - int err = FXFT_Load_Glyph( - m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - if (err) - return 0; - - int width = EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Glyph_HoriAdvance(m_Face)); - return width; -} - -bool CFX_Font::LoadEmbedded(const uint8_t* data, uint32_t size) { - std::vector<uint8_t> temp(data, data + size); - m_pFontDataAllocation.swap(temp); - m_Face = FT_LoadFont(m_pFontDataAllocation.data(), size); - m_pFontData = m_pFontDataAllocation.data(); - m_bEmbedded = true; - m_dwSize = size; - return !!m_Face; -} - -bool CFX_Font::IsTTFont() const { - return m_Face && FXFT_Is_Face_TT_OT(m_Face) == FXFT_FACE_FLAG_SFNT; -} - -int CFX_Font::GetAscent() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Ascender(m_Face)); -} - -int CFX_Font::GetDescent() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Descender(m_Face)); -} - -bool CFX_Font::GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox) { - if (!m_Face) - return false; - - if (FXFT_Is_Face_Tricky(m_Face)) { - int error = FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72); - if (error) - return false; - - error = FXFT_Load_Glyph(m_Face, glyph_index, - FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - if (error) - return false; - - FXFT_BBox cbox; - FT_Glyph glyph; - error = FXFT_Get_Glyph(m_Face->glyph, &glyph); - if (error) - return false; - - FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); - int pixel_size_x = m_Face->size->metrics.x_ppem, - pixel_size_y = m_Face->size->metrics.y_ppem; - if (pixel_size_x == 0 || pixel_size_y == 0) { - bbox.left = cbox.xMin; - bbox.right = cbox.xMax; - bbox.top = cbox.yMax; - bbox.bottom = cbox.yMin; - } else { - bbox.left = cbox.xMin * 1000 / pixel_size_x; - bbox.right = cbox.xMax * 1000 / pixel_size_x; - bbox.top = cbox.yMax * 1000 / pixel_size_y; - bbox.bottom = cbox.yMin * 1000 / pixel_size_y; - } - bbox.top = std::min(bbox.top, - static_cast<int32_t>(FXFT_Get_Face_Ascender(m_Face))); - bbox.bottom = std::max( - bbox.bottom, static_cast<int32_t>(FXFT_Get_Face_Descender(m_Face))); - FT_Done_Glyph(glyph); - return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0; - } - if (FXFT_Load_Glyph( - m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) { - return false; - } - int em = FXFT_Get_Face_UnitsPerEM(m_Face); - if (em == 0) { - bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face); - bbox.bottom = FXFT_Get_Glyph_HoriBearingY(m_Face); - bbox.top = bbox.bottom - FXFT_Get_Glyph_Height(m_Face); - bbox.right = bbox.left + FXFT_Get_Glyph_Width(m_Face); - } else { - bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face) * 1000 / em; - bbox.top = - (FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face)) * - 1000 / em; - bbox.right = - (FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face)) * - 1000 / em; - bbox.bottom = (FXFT_Get_Glyph_HoriBearingY(m_Face)) * 1000 / em; - } - return true; -} - -bool CFX_Font::IsItalic() const { - if (!m_Face) - return false; - if (FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC) - return true; - - CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face)); - str.MakeLower(); - return str.Find("italic") != -1; -} - -bool CFX_Font::IsBold() const { - return m_Face && FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD; -} - -bool CFX_Font::IsFixedWidth() const { - return m_Face && FXFT_Is_Face_fixedwidth(m_Face) != 0; -} - -CFX_ByteString CFX_Font::GetPsName() const { - if (!m_Face) - return CFX_ByteString(); - - CFX_ByteString psName = FXFT_Get_Postscript_Name(m_Face); - if (psName.IsEmpty()) - psName = "Untitled"; - return psName; -} - -CFX_ByteString CFX_Font::GetFamilyName() const { - if (!m_Face && !m_pSubstFont) - return CFX_ByteString(); - if (m_Face) - return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face)); - - return m_pSubstFont->m_Family; -} - -CFX_ByteString CFX_Font::GetFaceName() const { - if (!m_Face && !m_pSubstFont) - return CFX_ByteString(); - if (m_Face) { - CFX_ByteString style = CFX_ByteString(FXFT_Get_Face_Style_Name(m_Face)); - CFX_ByteString facename = GetFamilyName(); - if (facename.IsEmpty()) - facename = "Untitled"; - if (!style.IsEmpty() && style != "Regular") - facename += " " + style; - return facename; - } - return m_pSubstFont->m_Family; -} - -bool CFX_Font::GetBBox(FX_RECT& bbox) { - if (!m_Face) - return false; - - int em = FXFT_Get_Face_UnitsPerEM(m_Face); - if (em == 0) { - bbox.left = FXFT_Get_Face_xMin(m_Face); - bbox.bottom = FXFT_Get_Face_yMax(m_Face); - bbox.top = FXFT_Get_Face_yMin(m_Face); - bbox.right = FXFT_Get_Face_xMax(m_Face); - } else { - bbox.left = FXFT_Get_Face_xMin(m_Face) * 1000 / em; - bbox.top = FXFT_Get_Face_yMin(m_Face) * 1000 / em; - bbox.right = FXFT_Get_Face_xMax(m_Face) * 1000 / em; - bbox.bottom = FXFT_Get_Face_yMax(m_Face) * 1000 / em; - } - return true; -} - -CFX_FaceCache* CFX_Font::GetFaceCache() const { - if (!m_FaceCache) - m_FaceCache = CFX_GEModule::Get()->GetFontCache()->GetCachedFace(this); - return m_FaceCache.Get(); -} - -void CFX_Font::ClearFaceCache() { - if (!m_FaceCache) - return; - - m_FaceCache = nullptr; - CFX_GEModule::Get()->GetFontCache()->ReleaseCachedFace(this); -} - -void CFX_Font::AdjustMMParams(int glyph_index, - int dest_width, - int weight) const { - FXFT_MM_Var pMasters = nullptr; - FXFT_Get_MM_Var(m_Face, &pMasters); - if (!pMasters) - return; - - long coords[2]; - if (weight == 0) - coords[0] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 0)) / 65536; - else - coords[0] = weight; - - if (dest_width == 0) { - coords[1] = FXFT_Get_MM_Axis_Def(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; - } else { - int min_param = FXFT_Get_MM_Axis_Min(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; - int max_param = FXFT_Get_MM_Axis_Max(FXFT_Get_MM_Axis(pMasters, 1)) / 65536; - coords[1] = min_param; - FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); - FXFT_Load_Glyph(m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - int min_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / - FXFT_Get_Face_UnitsPerEM(m_Face); - coords[1] = max_param; - FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); - FXFT_Load_Glyph(m_Face, glyph_index, - FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH); - int max_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / - FXFT_Get_Face_UnitsPerEM(m_Face); - if (max_width == min_width) { - FXFT_Free(m_Face, pMasters); - return; - } - int param = min_param + - (max_param - min_param) * (dest_width - min_width) / - (max_width - min_width); - coords[1] = param; - } - FXFT_Free(m_Face, pMasters); - FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); -} - -CFX_PathData* CFX_Font::LoadGlyphPathImpl(uint32_t glyph_index, - int dest_width) const { - if (!m_Face) - return nullptr; - FXFT_Set_Pixel_Sizes(m_Face, 0, 64); - FXFT_Matrix ft_matrix = {65536, 0, 0, 65536}; - if (m_pSubstFont) { - if (m_pSubstFont->m_ItalicAngle) { - int skew = m_pSubstFont->m_ItalicAngle; - // |skew| is nonpositive so |-skew| is used as the index. We need to make - // sure |skew| != INT_MIN since -INT_MIN is undefined. - if (skew <= 0 && skew != std::numeric_limits<int>::min() && - static_cast<size_t>(-skew) < kAngleSkewArraySize) { - skew = -s_AngleSkew[-skew]; - } else { - skew = -58; - } - if (m_bVertical) - ft_matrix.yx += ft_matrix.yy * skew / 100; - else - ft_matrix.xy -= ft_matrix.xx * skew / 100; - } - if (m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) - AdjustMMParams(glyph_index, dest_width, m_pSubstFont->m_Weight); - } - ScopedFontTransform scoped_transform(m_Face, &ft_matrix); - int load_flags = FXFT_LOAD_NO_BITMAP; - if (!(m_Face->face_flags & FT_FACE_FLAG_SFNT) || !FT_IS_TRICKY(m_Face)) - load_flags |= FT_LOAD_NO_HINTING; - if (FXFT_Load_Glyph(m_Face, glyph_index, load_flags)) - return nullptr; - if (m_pSubstFont && !(m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM) && - m_pSubstFont->m_Weight > 400) { - uint32_t index = (m_pSubstFont->m_Weight - 400) / 10; - index = std::min(index, static_cast<uint32_t>(kWeightPowArraySize - 1)); - int level = 0; - if (m_pSubstFont->m_Charset == FX_CHARSET_ShiftJIS) - level = s_WeightPow_SHIFTJIS[index] * 2 * 65536 / 36655; - else - level = s_WeightPow[index] * 2; - FXFT_Outline_Embolden(FXFT_Get_Glyph_Outline(m_Face), level); - } - - FXFT_Outline_Funcs funcs; - funcs.move_to = Outline_MoveTo; - funcs.line_to = Outline_LineTo; - funcs.conic_to = Outline_ConicTo; - funcs.cubic_to = Outline_CubicTo; - funcs.shift = 0; - funcs.delta = 0; - - OUTLINE_PARAMS params; - auto pPath = pdfium::MakeUnique<CFX_PathData>(); - params.m_pPath = pPath.get(); - params.m_CurX = params.m_CurY = 0; - params.m_CoordUnit = 64 * 64.0; - - FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); - if (pPath->GetPoints().empty()) - return nullptr; - - Outline_CheckEmptyContour(¶ms); - pPath->ClosePath(); - - return pPath.release(); -} - -const CFX_GlyphBitmap* CFX_Font::LoadGlyphBitmap(uint32_t glyph_index, - bool bFontStyle, - const CFX_Matrix* pMatrix, - int dest_width, - int anti_alias, - int& text_flags) const { - return GetFaceCache()->LoadGlyphBitmap(this, glyph_index, bFontStyle, pMatrix, - dest_width, anti_alias, text_flags); -} - -const CFX_PathData* CFX_Font::LoadGlyphPath(uint32_t glyph_index, - int dest_width) const { - return GetFaceCache()->LoadGlyphPath(this, glyph_index, dest_width); -} - -#if defined _SKIA_SUPPORT_ || _SKIA_SUPPORT_PATHS_ -CFX_TypeFace* CFX_Font::GetDeviceCache() const { - return GetFaceCache()->GetDeviceCache(this); -} -#endif |