1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include <memory> 8 9 #include "core/fxcrt/cfx_fixedbufgrow.h" 10 #include "core/fxcrt/fx_system.h" 11 12 #ifndef _SKIA_SUPPORT_ 13 #include "core/fxge/agg/fx_agg_driver.h" 14 #endif 15 16 #include "core/fxge/apple/apple_int.h" 17 #include "core/fxge/cfx_cliprgn.h" 18 #include "core/fxge/cfx_facecache.h" 19 #include "core/fxge/cfx_font.h" 20 #include "core/fxge/cfx_gemodule.h" 21 #include "core/fxge/cfx_renderdevice.h" 22 #include "core/fxge/fx_freetype.h" 23 24 #ifndef _SKIA_SUPPORT_ 25 26 namespace { 27 28 void DoNothing(void* info, const void* data, size_t size) {} 29 30 bool CGDrawGlyphRun(CGContextRef pContext, 31 int nChars, 32 const FXTEXT_CHARPOS* pCharPos, 33 CFX_Font* pFont, 34 const CFX_Matrix* pObject2Device, 35 float font_size, 36 uint32_t argb) { 37 if (nChars == 0) 38 return true; 39 40 bool bNegSize = font_size < 0; 41 if (bNegSize) 42 font_size = -font_size; 43 44 CFX_Matrix new_matrix; 45 if (pObject2Device) 46 new_matrix.Concat(*pObject2Device); 47 48 CQuartz2D& quartz2d = 49 static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatformData()) 50 ->m_quartz2d; 51 if (!pFont->GetPlatformFont()) { 52 if (pFont->GetPsName() == "DFHeiStd-W5") 53 return false; 54 55 pFont->SetPlatformFont( 56 quartz2d.CreateFont(pFont->GetFontData(), pFont->GetSize())); 57 if (!pFont->GetPlatformFont()) 58 return false; 59 } 60 CFX_FixedBufGrow<uint16_t, 32> glyph_indices(nChars); 61 CFX_FixedBufGrow<CGPoint, 32> glyph_positions(nChars); 62 for (int i = 0; i < nChars; i++) { 63 glyph_indices[i] = 64 pCharPos[i].m_ExtGID ? pCharPos[i].m_ExtGID : pCharPos[i].m_GlyphIndex; 65 if (bNegSize) 66 glyph_positions[i].x = -pCharPos[i].m_Origin.x; 67 else 68 glyph_positions[i].x = pCharPos[i].m_Origin.x; 69 glyph_positions[i].y = pCharPos[i].m_Origin.y; 70 } 71 if (bNegSize) { 72 new_matrix.a = -new_matrix.a; 73 new_matrix.c = -new_matrix.c; 74 } else { 75 new_matrix.b = -new_matrix.b; 76 new_matrix.d = -new_matrix.d; 77 } 78 quartz2d.setGraphicsTextMatrix(pContext, &new_matrix); 79 return quartz2d.drawGraphicsString(pContext, pFont->GetPlatformFont(), 80 font_size, glyph_indices, glyph_positions, 81 nChars, argb, nullptr); 82 } 83 84 } // namespace 85 86 void CFX_AggDeviceDriver::InitPlatform() { 87 CQuartz2D& quartz2d = 88 static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatformData()) 89 ->m_quartz2d; 90 m_pPlatformGraphics = quartz2d.createGraphics(m_pBitmap); 91 } 92 93 void CFX_AggDeviceDriver::DestroyPlatform() { 94 CQuartz2D& quartz2d = 95 static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatformData()) 96 ->m_quartz2d; 97 if (m_pPlatformGraphics) { 98 quartz2d.destroyGraphics(m_pPlatformGraphics); 99 m_pPlatformGraphics = nullptr; 100 } 101 } 102 103 bool CFX_AggDeviceDriver::DrawDeviceText(int nChars, 104 const FXTEXT_CHARPOS* pCharPos, 105 CFX_Font* pFont, 106 const CFX_Matrix* pObject2Device, 107 float font_size, 108 uint32_t argb) { 109 if (!pFont) 110 return false; 111 112 bool bBold = pFont->IsBold(); 113 if (!bBold && pFont->GetSubstFont() && 114 pFont->GetSubstFont()->m_Weight >= 500 && 115 pFont->GetSubstFont()->m_Weight <= 600) { 116 return false; 117 } 118 for (int i = 0; i < nChars; i++) { 119 if (pCharPos[i].m_bGlyphAdjust) 120 return false; 121 } 122 CGContextRef ctx = CGContextRef(m_pPlatformGraphics); 123 if (!ctx) 124 return false; 125 126 CGContextSaveGState(ctx); 127 CGContextSetTextDrawingMode(ctx, kCGTextFillClip); 128 CGRect rect_cg; 129 CGImageRef pImageCG = nullptr; 130 if (m_pClipRgn) { 131 rect_cg = 132 CGRectMake(m_pClipRgn->GetBox().left, m_pClipRgn->GetBox().top, 133 m_pClipRgn->GetBox().Width(), m_pClipRgn->GetBox().Height()); 134 RetainPtr<CFX_DIBitmap> pClipMask = m_pClipRgn->GetMask(); 135 if (pClipMask) { 136 CGDataProviderRef pClipMaskDataProvider = CGDataProviderCreateWithData( 137 nullptr, pClipMask->GetBuffer(), 138 pClipMask->GetPitch() * pClipMask->GetHeight(), DoNothing); 139 CGFloat decode_f[2] = {255.f, 0.f}; 140 pImageCG = CGImageMaskCreate( 141 pClipMask->GetWidth(), pClipMask->GetHeight(), 8, 8, 142 pClipMask->GetPitch(), pClipMaskDataProvider, decode_f, false); 143 CGDataProviderRelease(pClipMaskDataProvider); 144 } 145 } else { 146 rect_cg = CGRectMake(0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight()); 147 } 148 rect_cg = CGContextConvertRectToDeviceSpace(ctx, rect_cg); 149 if (pImageCG) 150 CGContextClipToMask(ctx, rect_cg, pImageCG); 151 else 152 CGContextClipToRect(ctx, rect_cg); 153 154 bool ret = CGDrawGlyphRun(ctx, nChars, pCharPos, pFont, pObject2Device, 155 font_size, argb); 156 if (pImageCG) 157 CGImageRelease(pImageCG); 158 CGContextRestoreGState(ctx); 159 return ret; 160 } 161 162 #endif // _SKIA_SUPPORT_ 163 164 void CFX_FaceCache::InitPlatform() {} 165 166 void CFX_FaceCache::DestroyPlatform() {} 167 168 std::unique_ptr<CFX_GlyphBitmap> CFX_FaceCache::RenderGlyph_Nativetext( 169 const CFX_Font* pFont, 170 uint32_t glyph_index, 171 const CFX_Matrix* pMatrix, 172 int dest_width, 173 int anti_alias) { 174 return nullptr; 175 } 176 177 void CFX_Font::ReleasePlatformResource() { 178 if (m_pPlatformFont) { 179 CQuartz2D& quartz2d = 180 static_cast<CApplePlatform*>(CFX_GEModule::Get()->GetPlatformData()) 181 ->m_quartz2d; 182 quartz2d.DestroyFont(m_pPlatformFont); 183 m_pPlatformFont = nullptr; 184 } 185 } 186
