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Side by Side Diff: Source/platform/fonts/win/SkiaFontWin.cpp

Issue 209383011: Remove SkiaFontWin as it is no longer used (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 9 months ago
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1 /*
2 * Copyright (c) 2008, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "platform/fonts/win/SkiaFontWin.h"
33
34 #include "platform/fonts/SimpleFontData.h"
35 #include "platform/fonts/win/FontPlatformDataWin.h"
36 #include "platform/graphics/Gradient.h"
37 #include "platform/graphics/GraphicsContext.h"
38 #include "platform/graphics/Pattern.h"
39 #include "platform/transforms/AffineTransform.h"
40 #include "third_party/skia/include/core/SkCanvas.h"
41 #include "third_party/skia/include/core/SkDevice.h"
42 #include "third_party/skia/include/core/SkPaint.h"
43 #include "third_party/skia/include/core/SkShader.h"
44 #include "third_party/skia/include/core/SkTemplates.h"
45 #include "wtf/RefPtr.h"
46
47 namespace WebCore {
48
49 static void skiaDrawText(GraphicsContext* context,
50 const SkPoint& point,
51 const SkRect& textRect,
52 SkPaint* paint,
53 const WORD* glyphs,
54 const int* advances,
55 const GOFFSET* offsets,
56 unsigned numGlyphs)
57 {
58 // Reserve space for 64 SkPoints on the stack. If numGlyphs is larger, the a rray
59 // will dynamically allocate it space for numGlyph glyphs. This is used to s tore
60 // the computed x,y locations. In the case where offsets==null, then we use it
61 // to store (twice as many) SkScalars for x[]
62 static const size_t kLocalGlyphMax = 64;
63
64 SkScalar x = point.fX;
65 SkScalar y = point.fY;
66 if (offsets) {
67 SkAutoSTArray<kLocalGlyphMax, SkPoint> storage(numGlyphs);
68 SkPoint* pos = storage.get();
69 for (unsigned i = 0; i < numGlyphs; i++) {
70 // GDI has dv go up, so we negate it
71 pos[i].set(x + SkIntToScalar(offsets[i].du), y + -SkIntToScalar(offs ets[i].dv));
72 x += SkIntToScalar(advances[i]);
73 }
74 context->drawPosText(glyphs, numGlyphs * sizeof(uint16_t), pos, textRect , *paint);
75 } else {
76 SkAutoSTArray<kLocalGlyphMax * 2, SkScalar> storage(numGlyphs);
77 SkScalar* xpos = storage.get();
78 for (unsigned i = 0; i < numGlyphs; i++) {
79 xpos[i] = x;
80 x += SkIntToScalar(advances[i]);
81 }
82 context->drawPosTextH(glyphs, numGlyphs * sizeof(uint16_t), xpos, y, tex tRect, *paint);
83 }
84 }
85
86 void paintSkiaText(GraphicsContext* context,
87 const FontPlatformData& data,
88 unsigned numGlyphs,
89 const WORD* glyphs,
90 const int* advances,
91 const GOFFSET* offsets,
92 const SkPoint& origin,
93 const SkRect& textRect)
94 {
95 TextDrawingModeFlags textMode = context->textDrawingMode();
96
97 // Filling (if necessary). This is the common case.
98 SkPaint paint;
99 context->setupPaintForFilling(&paint);
100 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
101 data.setupPaint(&paint, context);
102
103 bool didFill = false;
104
105 if ((textMode & TextModeFill) && (SkColorGetA(paint.getColor()) || paint.get Looper())) {
106 skiaDrawText(context, origin, textRect, &paint, &glyphs[0], &advances[0] , &offsets[0], numGlyphs);
107 didFill = true;
108 }
109
110 // Stroking on top (if necessary).
111 if ((textMode & TextModeStroke)
112 && context->strokeStyle() != NoStroke
113 && context->strokeThickness() > 0) {
114
115 paint.reset();
116 context->setupPaintForStroking(&paint);
117 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
118 data.setupPaint(&paint, context);
119
120 if (didFill) {
121 // If there is a shadow and we filled above, there will already be
122 // a shadow. We don't want to draw it again or it will be too dark
123 // and it will go on top of the fill.
124 //
125 // Note that this isn't strictly correct, since the stroke could be
126 // very thick and the shadow wouldn't account for this. The "right"
127 // thing would be to draw to a new layer and then draw that layer
128 // with a shadow. But this is a lot of extra work for something
129 // that isn't normally an issue.
130 paint.setLooper(0);
131 }
132
133 skiaDrawText(context, origin, textRect, &paint, &glyphs[0], &advances[0] , &offsets[0], numGlyphs);
134 }
135 }
136
137 } // namespace WebCore
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