From 155c88006a4367bb09631c3ca4983ef48e06bc62 Mon Sep 17 00:00:00 2001 From: npm Date: Tue, 6 Sep 2016 07:31:02 -0700 Subject: Move CFX_Font definition to its own file and clean up - Rename fx_ge_font.cpp to cfx_font.cpp - Deleted unused CONTRAST_RAMP_STEP in fx_ge_text.cpp - Move CFX_Font definitions and auxiliary methods in fx_ge_text to cfx_font - Remove extern "C", static, and underscore prefixes in new namespace methods in cfx_font.cpp Review-Url: https://codereview.chromium.org/2304493005 --- BUILD.gn | 2 +- core/fxge/ge/cfx_font.cpp | 667 ++++++++++++++++++++++++++++++++++++++++++++ core/fxge/ge/fx_ge_font.cpp | 416 --------------------------- core/fxge/ge/fx_ge_text.cpp | 271 ------------------ 4 files changed, 668 insertions(+), 688 deletions(-) create mode 100644 core/fxge/ge/cfx_font.cpp delete mode 100644 core/fxge/ge/fx_ge_font.cpp diff --git a/BUILD.gn b/BUILD.gn index 3b6fb12212..7964a87d10 100644 --- a/BUILD.gn +++ b/BUILD.gn @@ -765,6 +765,7 @@ static_library("fxge") { "core/fxge/ge/cfx_facecache.cpp", "core/fxge/ge/cfx_folderfontinfo.cpp", "core/fxge/ge/cfx_folderfontinfo.h", + "core/fxge/ge/cfx_font.cpp", "core/fxge/ge/cfx_fontcache.cpp", "core/fxge/ge/cfx_fontmapper.cpp", "core/fxge/ge/cfx_fontmgr.cpp", @@ -776,7 +777,6 @@ static_library("fxge") { "core/fxge/ge/cfx_unicodeencoding.cpp", "core/fxge/ge/cttfontdesc.cpp", "core/fxge/ge/cttfontdesc.h", - "core/fxge/ge/fx_ge_font.cpp", "core/fxge/ge/fx_ge_fontmap.cpp", "core/fxge/ge/fx_ge_linux.cpp", "core/fxge/ge/fx_ge_text.cpp", diff --git a/core/fxge/ge/cfx_font.cpp b/core/fxge/ge/cfx_font.cpp new file mode 100644 index 0000000000..4aefec8d43 --- /dev/null +++ b/core/fxge/ge/cfx_font.cpp @@ -0,0 +1,667 @@ +// 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/include/fx_font.h" + +#include "core/fpdfapi/fpdf_font/include/cpdf_font.h" +#include "core/fxge/ge/fx_text_int.h" +#include "core/fxge/include/cfx_fontmgr.h" +#include "core/fxge/include/cfx_gemodule.h" +#include "core/fxge/include/cfx_pathdata.h" +#include "core/fxge/include/cfx_substfont.h" +#include "core/fxge/include/fx_freetype.h" + +#define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em) + +namespace { + +typedef struct { + FX_BOOL m_bCount; + int m_PointCount; + FX_PATHPOINT* m_pPoints; + int m_CurX; + int m_CurY; + FX_FLOAT m_CoordUnit; +} OUTLINE_PARAMS; + +#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_FileRead* pFile = static_cast(stream->descriptor.pointer); + return pFile->ReadBlock(buffer, offset, count) ? count : 0; +} + +void FTStreamClose(FXFT_Stream stream) {} + +FX_BOOL LoadFileImp(FXFT_Library library, + FXFT_Face* Face, + IFX_FileRead* pFile, + int32_t faceIndex, + std::unique_ptr* stream) { + std::unique_ptr stream1(new FXFT_StreamRec()); + stream1->base = nullptr; + stream1->size = static_cast(pFile->GetSize()); + stream1->pos = 0; + stream1->descriptor.pointer = pFile; + 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) { + if (param->m_PointCount >= 2 && + param->m_pPoints[param->m_PointCount - 2].m_Flag == FXPT_MOVETO && + param->m_pPoints[param->m_PointCount - 2].m_PointX == + param->m_pPoints[param->m_PointCount - 1].m_PointX && + param->m_pPoints[param->m_PointCount - 2].m_PointY == + param->m_pPoints[param->m_PointCount - 1].m_PointY) { + param->m_PointCount -= 2; + } + if (param->m_PointCount >= 4 && + param->m_pPoints[param->m_PointCount - 4].m_Flag == FXPT_MOVETO && + param->m_pPoints[param->m_PointCount - 3].m_Flag == FXPT_BEZIERTO && + param->m_pPoints[param->m_PointCount - 3].m_PointX == + param->m_pPoints[param->m_PointCount - 4].m_PointX && + param->m_pPoints[param->m_PointCount - 3].m_PointY == + param->m_pPoints[param->m_PointCount - 4].m_PointY && + param->m_pPoints[param->m_PointCount - 2].m_PointX == + param->m_pPoints[param->m_PointCount - 4].m_PointX && + param->m_pPoints[param->m_PointCount - 2].m_PointY == + param->m_pPoints[param->m_PointCount - 4].m_PointY && + param->m_pPoints[param->m_PointCount - 1].m_PointX == + param->m_pPoints[param->m_PointCount - 4].m_PointX && + param->m_pPoints[param->m_PointCount - 1].m_PointY == + param->m_pPoints[param->m_PointCount - 4].m_PointY) { + param->m_PointCount -= 4; + } +} + +int Outline_MoveTo(const FXFT_Vector* to, void* user) { + OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; + if (!param->m_bCount) { + Outline_CheckEmptyContour(param); + param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_Flag = FXPT_MOVETO; + param->m_CurX = to->x; + param->m_CurY = to->y; + if (param->m_PointCount) + param->m_pPoints[param->m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; + } + param->m_PointCount++; + return 0; +} + +int Outline_LineTo(const FXFT_Vector* to, void* user) { + OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; + if (!param->m_bCount) { + param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_Flag = FXPT_LINETO; + param->m_CurX = to->x; + param->m_CurY = to->y; + } + param->m_PointCount++; + return 0; +} + +int Outline_ConicTo(const FXFT_Vector* control, + const FXFT_Vector* to, + void* user) { + OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; + if (!param->m_bCount) { + param->m_pPoints[param->m_PointCount].m_PointX = + (param->m_CurX + (control->x - param->m_CurX) * 2 / 3) / + param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_PointY = + (param->m_CurY + (control->y - param->m_CurY) * 2 / 3) / + param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; + param->m_pPoints[param->m_PointCount + 1].m_PointX = + (control->x + (to->x - control->x) / 3) / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 1].m_PointY = + (control->y + (to->y - control->y) / 3) / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; + param->m_pPoints[param->m_PointCount + 2].m_PointX = + to->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 2].m_PointY = + to->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; + param->m_CurX = to->x; + param->m_CurY = to->y; + } + param->m_PointCount += 3; + return 0; +} + +int Outline_CubicTo(const FXFT_Vector* control1, + const FXFT_Vector* control2, + const FXFT_Vector* to, + void* user) { + OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; + if (!param->m_bCount) { + param->m_pPoints[param->m_PointCount].m_PointX = + control1->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_PointY = + control1->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; + param->m_pPoints[param->m_PointCount + 1].m_PointX = + control2->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 1].m_PointY = + control2->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; + param->m_pPoints[param->m_PointCount + 2].m_PointX = + to->x / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 2].m_PointY = + to->y / param->m_CoordUnit; + param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; + param->m_CurX = to->x; + param->m_CurY = to->y; + } + param->m_PointCount += 3; + 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_bLogic(FALSE), + m_pOwnedStream(nullptr), +#endif // PDF_ENABLE_XFA + m_Face(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 +FX_BOOL CFX_Font::LoadClone(const CFX_Font* pFont) { + if (!pFont) + return FALSE; + + m_bLogic = TRUE; + if (pFont->m_pSubstFont) { + m_pSubstFont.reset(new 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; + } + if (pFont->m_OtfFontData.GetSize()) { + m_OtfFontData.AttachData(pFont->m_OtfFontData.GetBuffer(), + pFont->m_OtfFontData.GetSize()); + } + 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; + return TRUE; +} +#endif // PDF_ENABLE_XFA + +CFX_Font::~CFX_Font() { +#ifdef PDF_ENABLE_XFA + if (m_bLogic) { + m_OtfFontData.DetachBuffer(); + 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 + if (m_bEmbedded) + DeleteFace(); + else + CFX_GEModule::Get()->GetFontMgr()->ReleaseFace(m_Face); + } +#ifdef PDF_ENABLE_XFA + FX_Free(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() { + FXFT_Done_Face(m_Face); + m_Face = nullptr; +} + +void CFX_Font::LoadSubst(const CFX_ByteString& face_name, + FX_BOOL bTrueType, + uint32_t flags, + int weight, + int italic_angle, + int CharsetCP, + FX_BOOL bVertical) { + m_bEmbedded = FALSE; + m_bVertical = bVertical; + m_pSubstFont.reset(new 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 +FX_BOOL CFX_Font::LoadFile(IFX_FileRead* pFile, + int nFaceIndex, + int* pFaceCount) { + m_bEmbedded = FALSE; + + CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr(); + pFontMgr->InitFTLibrary(); + FXFT_Library library = pFontMgr->GetFTLibrary(); + + std::unique_ptr stream; + if (!LoadFileImp(library, &m_Face, pFile, nFaceIndex, &stream)) + return FALSE; + + if (pFaceCount) + *pFaceCount = (int)m_Face->num_faces; + 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; +} + +FX_BOOL CFX_Font::LoadEmbedded(const uint8_t* data, uint32_t size) { + std::vector 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; +} + +FX_BOOL CFX_Font::IsTTFont() const { + if (!m_Face) + return FALSE; + return 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)); +} + +FX_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(((FXFT_Face)m_Face)->glyph, &glyph); + if (error) + return FALSE; + FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); + int pixel_size_x = ((FXFT_Face)m_Face)->size->metrics.x_ppem, + pixel_size_y = ((FXFT_Face)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; + } + if (bbox.top > FXFT_Get_Face_Ascender(m_Face)) + bbox.top = FXFT_Get_Face_Ascender(m_Face); + if (bbox.bottom < FXFT_Get_Face_Descender(m_Face)) + bbox.bottom = 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; +} + +FX_BOOL CFX_Font::IsItalic() const { + if (!m_Face) + return FALSE; + + FX_BOOL ret = FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC; + if (!ret) { + CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face)); + str.MakeLower(); + if (str.Find("italic") != -1) + ret = TRUE; + } + return ret; +} + +FX_BOOL CFX_Font::IsBold() const { + if (!m_Face) + return FALSE; + return FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD; +} + +FX_BOOL CFX_Font::IsFixedWidth() const { + if (!m_Face) + return FALSE; + return FXFT_Is_Face_fixedwidth(m_Face); +} + +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 facename; + CFX_ByteString style = CFX_ByteString(FXFT_Get_Face_Style_Name(m_Face)); + facename = GetFamilyName(); + if (facename.IsEmpty()) + facename = "Untitled"; + if (!style.IsEmpty() && style != "Regular") + facename += " " + style; + return facename; + } + return m_pSubstFont->m_Family; +} + +FX_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; +} + +int CFX_Font::GetHeight() const { + if (!m_Face) + return 0; + + return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), + FXFT_Get_Face_Height(m_Face)); +} + +int CFX_Font::GetMaxAdvanceWidth() const { + if (!m_Face) + return 0; + + return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), + FXFT_Get_Face_MaxAdvanceWidth(m_Face)); +} + +int CFX_Font::GetULPos() const { + if (!m_Face) + return 0; + + return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), + FXFT_Get_Face_UnderLinePosition(m_Face)); +} + +int CFX_Font::GetULthickness() const { + if (!m_Face) + return 0; + + return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), + FXFT_Get_Face_UnderLineThickness(m_Face)); +} + +void CFX_Font::AdjustMMParams(int glyph_index, int dest_width, int weight) { + 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::LoadGlyphPath(uint32_t glyph_index, int dest_width) { + 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::min() && + static_cast(-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(kWeightPowArraySize - 1)); + int level = 0; + if (m_pSubstFont->m_Charset == FXFONT_SHIFTJIS_CHARSET) + 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; + params.m_bCount = TRUE; + params.m_PointCount = 0; + FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); + if (params.m_PointCount == 0) + return nullptr; + CFX_PathData* pPath = new CFX_PathData; + pPath->SetPointCount(params.m_PointCount); + params.m_bCount = FALSE; + params.m_PointCount = 0; + params.m_pPoints = pPath->GetPoints(); + params.m_CurX = params.m_CurY = 0; + params.m_CoordUnit = 64 * 64.0; + FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); + Outline_CheckEmptyContour(¶ms); + pPath->TrimPoints(params.m_PointCount); + if (params.m_PointCount) + pPath->GetPoints()[params.m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; + return pPath; +} diff --git a/core/fxge/ge/fx_ge_font.cpp b/core/fxge/ge/fx_ge_font.cpp deleted file mode 100644 index cb86429ef6..0000000000 --- a/core/fxge/ge/fx_ge_font.cpp +++ /dev/null @@ -1,416 +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/include/fx_font.h" - -#include "core/fpdfapi/fpdf_font/include/cpdf_font.h" -#include "core/fxge/ge/fx_text_int.h" -#include "core/fxge/include/cfx_fontmgr.h" -#include "core/fxge/include/cfx_gemodule.h" -#include "core/fxge/include/cfx_substfont.h" -#include "core/fxge/include/fx_freetype.h" - -#define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em) - -namespace { - -#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_FileRead* pFile = static_cast(stream->descriptor.pointer); - return pFile->ReadBlock(buffer, offset, count) ? count : 0; -} - -void FTStreamClose(FXFT_Stream stream) {} - -FX_BOOL LoadFileImp(FXFT_Library library, - FXFT_Face* Face, - IFX_FileRead* pFile, - int32_t faceIndex, - std::unique_ptr* stream) { - std::unique_ptr stream1(new FXFT_StreamRec()); - stream1->base = nullptr; - stream1->size = static_cast(pFile->GetSize()); - stream1->pos = 0; - stream1->descriptor.pointer = pFile; - 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); -} - -} // namespace - -CFX_Font::CFX_Font() -#ifdef PDF_ENABLE_XFA - : m_bLogic(FALSE), - m_pOwnedStream(nullptr), - m_Face(nullptr), -#else - : m_Face(nullptr), -#endif // PDF_ENABLE_XFA - 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 -FX_BOOL CFX_Font::LoadClone(const CFX_Font* pFont) { - if (!pFont) - return FALSE; - - m_bLogic = TRUE; - if (pFont->m_pSubstFont) { - m_pSubstFont.reset(new 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; - } - if (pFont->m_OtfFontData.GetSize()) { - m_OtfFontData.AttachData(pFont->m_OtfFontData.GetBuffer(), - pFont->m_OtfFontData.GetSize()); - } - 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; - return TRUE; -} -#endif // PDF_ENABLE_XFA - -CFX_Font::~CFX_Font() { -#ifdef PDF_ENABLE_XFA - if (m_bLogic) { - m_OtfFontData.DetachBuffer(); - 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 - if (m_bEmbedded) { - DeleteFace(); - } else { - CFX_GEModule::Get()->GetFontMgr()->ReleaseFace(m_Face); - } - } -#ifdef PDF_ENABLE_XFA - FX_Free(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() { - FXFT_Done_Face(m_Face); - m_Face = nullptr; -} - -void CFX_Font::LoadSubst(const CFX_ByteString& face_name, - FX_BOOL bTrueType, - uint32_t flags, - int weight, - int italic_angle, - int CharsetCP, - FX_BOOL bVertical) { - m_bEmbedded = FALSE; - m_bVertical = bVertical; - m_pSubstFont.reset(new 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 -FX_BOOL CFX_Font::LoadFile(IFX_FileRead* pFile, - int nFaceIndex, - int* pFaceCount) { - m_bEmbedded = FALSE; - - CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr(); - pFontMgr->InitFTLibrary(); - FXFT_Library library = pFontMgr->GetFTLibrary(); - - std::unique_ptr stream; - if (!LoadFileImp(library, &m_Face, pFile, nFaceIndex, &stream)) - return FALSE; - - if (pFaceCount) - *pFaceCount = (int)m_Face->num_faces; - 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; -} - -FX_BOOL CFX_Font::LoadEmbedded(const uint8_t* data, uint32_t size) { - std::vector 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; -} - -FX_BOOL CFX_Font::IsTTFont() const { - if (!m_Face) - return FALSE; - return 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)); -} - -FX_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(((FXFT_Face)m_Face)->glyph, &glyph); - if (error) { - return FALSE; - } - FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox); - int pixel_size_x = ((FXFT_Face)m_Face)->size->metrics.x_ppem, - pixel_size_y = ((FXFT_Face)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; - } - if (bbox.top > FXFT_Get_Face_Ascender(m_Face)) { - bbox.top = FXFT_Get_Face_Ascender(m_Face); - } - if (bbox.bottom < FXFT_Get_Face_Descender(m_Face)) { - bbox.bottom = 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; -} - -FX_BOOL CFX_Font::IsItalic() const { - if (!m_Face) - return FALSE; - - FX_BOOL ret = FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC; - if (!ret) { - CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face)); - str.MakeLower(); - if (str.Find("italic") != -1) { - ret = TRUE; - } - } - return ret; -} - -FX_BOOL CFX_Font::IsBold() const { - if (!m_Face) - return FALSE; - return FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD; -} - -FX_BOOL CFX_Font::IsFixedWidth() const { - if (!m_Face) - return FALSE; - return FXFT_Is_Face_fixedwidth(m_Face); -} - -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 facename; - CFX_ByteString style = CFX_ByteString(FXFT_Get_Face_Style_Name(m_Face)); - facename = GetFamilyName(); - if (facename.IsEmpty()) { - facename = "Untitled"; - } - if (!style.IsEmpty() && style != "Regular") { - facename += " " + style; - } - return facename; - } - return m_pSubstFont->m_Family; -} -FX_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; -} - -int CFX_Font::GetHeight() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_Height(m_Face)); -} - -int CFX_Font::GetMaxAdvanceWidth() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_MaxAdvanceWidth(m_Face)); -} - -int CFX_Font::GetULPos() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_UnderLinePosition(m_Face)); -} - -int CFX_Font::GetULthickness() const { - if (!m_Face) - return 0; - - return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face), - FXFT_Get_Face_UnderLineThickness(m_Face)); -} diff --git a/core/fxge/ge/fx_ge_text.cpp b/core/fxge/ge/fx_ge_text.cpp index b81c1ba8f1..415711f0cd 100644 --- a/core/fxge/ge/fx_ge_text.cpp +++ b/core/fxge/ge/fx_ge_text.cpp @@ -104,277 +104,6 @@ CFX_SizeGlyphCache::~CFX_SizeGlyphCache() { m_GlyphMap.clear(); } -#define CONTRAST_RAMP_STEP 1 -void CFX_Font::AdjustMMParams(int glyph_index, int dest_width, int weight) { - 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; - (void)FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); - (void)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; - (void)FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords); - (void)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); -} -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, -}; -typedef struct { - FX_BOOL m_bCount; - int m_PointCount; - FX_PATHPOINT* m_pPoints; - int m_CurX; - int m_CurY; - FX_FLOAT m_CoordUnit; -} OUTLINE_PARAMS; -void _Outline_CheckEmptyContour(OUTLINE_PARAMS* param) { - if (param->m_PointCount >= 2 && - param->m_pPoints[param->m_PointCount - 2].m_Flag == FXPT_MOVETO && - param->m_pPoints[param->m_PointCount - 2].m_PointX == - param->m_pPoints[param->m_PointCount - 1].m_PointX && - param->m_pPoints[param->m_PointCount - 2].m_PointY == - param->m_pPoints[param->m_PointCount - 1].m_PointY) { - param->m_PointCount -= 2; - } - if (param->m_PointCount >= 4 && - param->m_pPoints[param->m_PointCount - 4].m_Flag == FXPT_MOVETO && - param->m_pPoints[param->m_PointCount - 3].m_Flag == FXPT_BEZIERTO && - param->m_pPoints[param->m_PointCount - 3].m_PointX == - param->m_pPoints[param->m_PointCount - 4].m_PointX && - param->m_pPoints[param->m_PointCount - 3].m_PointY == - param->m_pPoints[param->m_PointCount - 4].m_PointY && - param->m_pPoints[param->m_PointCount - 2].m_PointX == - param->m_pPoints[param->m_PointCount - 4].m_PointX && - param->m_pPoints[param->m_PointCount - 2].m_PointY == - param->m_pPoints[param->m_PointCount - 4].m_PointY && - param->m_pPoints[param->m_PointCount - 1].m_PointX == - param->m_pPoints[param->m_PointCount - 4].m_PointX && - param->m_pPoints[param->m_PointCount - 1].m_PointY == - param->m_pPoints[param->m_PointCount - 4].m_PointY) { - param->m_PointCount -= 4; - } -} -extern "C" { -static int _Outline_MoveTo(const FXFT_Vector* to, void* user) { - OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; - if (!param->m_bCount) { - _Outline_CheckEmptyContour(param); - param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_Flag = FXPT_MOVETO; - param->m_CurX = to->x; - param->m_CurY = to->y; - if (param->m_PointCount) { - param->m_pPoints[param->m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; - } - } - param->m_PointCount++; - return 0; -} -}; -extern "C" { -static int _Outline_LineTo(const FXFT_Vector* to, void* user) { - OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; - if (!param->m_bCount) { - param->m_pPoints[param->m_PointCount].m_PointX = to->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_PointY = to->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_Flag = FXPT_LINETO; - param->m_CurX = to->x; - param->m_CurY = to->y; - } - param->m_PointCount++; - return 0; -} -}; -extern "C" { -static int _Outline_ConicTo(const FXFT_Vector* control, - const FXFT_Vector* to, - void* user) { - OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; - if (!param->m_bCount) { - param->m_pPoints[param->m_PointCount].m_PointX = - (param->m_CurX + (control->x - param->m_CurX) * 2 / 3) / - param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_PointY = - (param->m_CurY + (control->y - param->m_CurY) * 2 / 3) / - param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; - param->m_pPoints[param->m_PointCount + 1].m_PointX = - (control->x + (to->x - control->x) / 3) / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 1].m_PointY = - (control->y + (to->y - control->y) / 3) / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; - param->m_pPoints[param->m_PointCount + 2].m_PointX = - to->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 2].m_PointY = - to->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; - param->m_CurX = to->x; - param->m_CurY = to->y; - } - param->m_PointCount += 3; - return 0; -} -}; -extern "C" { -static int _Outline_CubicTo(const FXFT_Vector* control1, - const FXFT_Vector* control2, - const FXFT_Vector* to, - void* user) { - OUTLINE_PARAMS* param = (OUTLINE_PARAMS*)user; - if (!param->m_bCount) { - param->m_pPoints[param->m_PointCount].m_PointX = - control1->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_PointY = - control1->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount].m_Flag = FXPT_BEZIERTO; - param->m_pPoints[param->m_PointCount + 1].m_PointX = - control2->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 1].m_PointY = - control2->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 1].m_Flag = FXPT_BEZIERTO; - param->m_pPoints[param->m_PointCount + 2].m_PointX = - to->x / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 2].m_PointY = - to->y / param->m_CoordUnit; - param->m_pPoints[param->m_PointCount + 2].m_Flag = FXPT_BEZIERTO; - param->m_CurX = to->x; - param->m_CurY = to->y; - } - param->m_PointCount += 3; - return 0; -} -}; -CFX_PathData* CFX_Font::LoadGlyphPath(uint32_t glyph_index, int dest_width) { - 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::min() && - static_cast(-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(kWeightPowArraySize - 1)); - int level = 0; - if (m_pSubstFont->m_Charset == FXFONT_SHIFTJIS_CHARSET) - 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; - params.m_bCount = TRUE; - params.m_PointCount = 0; - FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); - if (params.m_PointCount == 0) { - return nullptr; - } - CFX_PathData* pPath = new CFX_PathData; - pPath->SetPointCount(params.m_PointCount); - params.m_bCount = FALSE; - params.m_PointCount = 0; - params.m_pPoints = pPath->GetPoints(); - params.m_CurX = params.m_CurY = 0; - params.m_CoordUnit = 64 * 64.0; - FXFT_Outline_Decompose(FXFT_Get_Glyph_Outline(m_Face), &funcs, ¶ms); - _Outline_CheckEmptyContour(¶ms); - pPath->TrimPoints(params.m_PointCount); - if (params.m_PointCount) { - pPath->GetPoints()[params.m_PointCount - 1].m_Flag |= FXPT_CLOSEFIGURE; - } - return pPath; -} void _CFX_UniqueKeyGen::Generate(int count, ...) { va_list argList; va_start(argList, count); -- cgit v1.2.3