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