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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrBitmapTextContext_DEFINED | 8 #ifndef GrBitmapTextContext_DEFINED |
9 #define GrBitmapTextContext_DEFINED | 9 #define GrBitmapTextContext_DEFINED |
10 | 10 |
11 #include "GrTextContext.h" | 11 #include "GrTextContext.h" |
12 | 12 |
13 class GrGeometryProcessor; | 13 class GrGeometryProcessor; |
14 class GrTextStrike; | 14 class GrTextStrike; |
15 | 15 |
16 /* | 16 /* |
17 * This class implements GrTextContext using standard bitmap fonts | 17 * This class implements GrTextContext using standard bitmap fonts |
18 */ | 18 */ |
19 class GrBitmapTextContext : public GrTextContext { | 19 class GrBitmapTextContext : public GrTextContext { |
20 public: | 20 public: |
21 static GrBitmapTextContext* Create(GrContext*, const SkDeviceProperties&); | 21 static GrBitmapTextContext* Create(GrContext*, const SkDeviceProperties&); |
22 | 22 |
23 virtual ~GrBitmapTextContext(); | 23 virtual ~GrBitmapTextContext(); |
24 | 24 |
25 private: | 25 private: |
26 enum { | |
27 kMinRequestedGlyphs = 1, | |
28 kDefaultRequestedGlyphs = 64, | |
29 kMinRequestedVerts = kMinRequestedGlyphs * 4, | |
30 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, | |
31 }; | |
32 | |
33 GrTextStrike* fStrike; | 26 GrTextStrike* fStrike; |
34 void* fVertices; | 27 void* fVertices; |
35 int fCurrVertex; | 28 int fCurrVertex; |
36 int fMaxVertices; | 29 int fAllocVertexCount; |
| 30 int fTotalVertexCount; |
37 SkRect fVertexBounds; | 31 SkRect fVertexBounds; |
38 GrTexture* fCurrTexture; | 32 GrTexture* fCurrTexture; |
39 GrMaskFormat fCurrMaskFormat; | 33 GrMaskFormat fCurrMaskFormat; |
40 SkAutoTUnref<GrGeometryProcessor> fCachedGeometryProcessor; | 34 SkAutoTUnref<GrGeometryProcessor> fCachedGeometryProcessor; |
41 // Used to check whether fCachedEffect is still valid. | 35 // Used to check whether fCachedEffect is still valid. |
42 uint32_t fEffectTextureUniqueID; | 36 uint32_t fEffectTextureUniqueID; |
43 | 37 |
44 GrBitmapTextContext(GrContext*, const SkDeviceProperties&); | 38 GrBitmapTextContext(GrContext*, const SkDeviceProperties&); |
45 | 39 |
46 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; | 40 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; |
47 | 41 |
48 virtual void onDrawText(const GrPaint&, const SkPaint&, const char text[], s
ize_t byteLength, | 42 virtual void onDrawText(const GrPaint&, const SkPaint&, const char text[], s
ize_t byteLength, |
49 SkScalar x, SkScalar y) SK_OVERRIDE; | 43 SkScalar x, SkScalar y) SK_OVERRIDE; |
50 virtual void onDrawPosText(const GrPaint&, const SkPaint&, | 44 virtual void onDrawPosText(const GrPaint&, const SkPaint&, |
51 const char text[], size_t byteLength, | 45 const char text[], size_t byteLength, |
52 const SkScalar pos[], int scalarsPerPosition, | 46 const SkScalar pos[], int scalarsPerPosition, |
53 const SkPoint& offset) SK_OVERRIDE; | 47 const SkPoint& offset) SK_OVERRIDE; |
54 | 48 |
55 void init(const GrPaint&, const SkPaint&); | 49 void init(const GrPaint&, const SkPaint&); |
56 void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler*
); | 50 void appendGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontScaler*
); |
57 void flush(); // automatically called by destructor | 51 void flush(); // automatically called by destructor |
58 void finish(); | 52 void finish(); |
59 | 53 |
60 }; | 54 }; |
61 | 55 |
62 #endif | 56 #endif |
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