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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 GrTextStrike; | 13 class GrTextStrike; |
14 | 14 |
15 /* | 15 /* |
16 * This class implements GrTextContext using standard bitmap fonts | 16 * This class implements GrTextContext using standard bitmap fonts |
17 */ | 17 */ |
18 class GrBitmapTextContext : public GrTextContext { | 18 class GrBitmapTextContext : public GrTextContext { |
19 public: | 19 public: |
20 GrBitmapTextContext(GrContext*, const SkDeviceProperties&); | 20 GrBitmapTextContext(GrContext*, const SkDeviceProperties&); |
21 virtual ~GrBitmapTextContext(); | 21 virtual ~GrBitmapTextContext(); |
22 | 22 |
23 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], siz
e_t byteLength, | 23 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], siz
e_t byteLength, |
24 SkScalar x, SkScalar y) SK_OVERRIDE; | 24 SkScalar x, SkScalar y) SK_OVERRIDE; |
25 virtual void drawPosText(const GrPaint&, const SkPaint&, | 25 virtual void drawPosText(const GrPaint&, const SkPaint&, |
26 const char text[], size_t byteLength, | 26 const char text[], size_t byteLength, |
27 const SkScalar pos[], SkScalar constY, | 27 const SkScalar pos[], int scalarsPerPosition, |
28 int scalarsPerPosition) SK_OVERRIDE; | 28 const SkPoint& offset) SK_OVERRIDE; |
29 | 29 |
30 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; | 30 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; |
31 | 31 |
32 private: | 32 private: |
33 GrTextStrike* fStrike; | 33 GrTextStrike* fStrike; |
34 | 34 |
35 void init(const GrPaint&, const SkPaint&); | 35 void init(const GrPaint&, const SkPaint&); |
36 void drawPackedGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontSca
ler*); | 36 void drawPackedGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontSca
ler*); |
37 void flushGlyphs(); // automatically called by destructor | 37 void flushGlyphs(); // automatically called by destructor |
38 void finish(); | 38 void finish(); |
39 | 39 |
40 enum { | 40 enum { |
41 kMinRequestedGlyphs = 1, | 41 kMinRequestedGlyphs = 1, |
42 kDefaultRequestedGlyphs = 64, | 42 kDefaultRequestedGlyphs = 64, |
43 kMinRequestedVerts = kMinRequestedGlyphs * 4, | 43 kMinRequestedVerts = kMinRequestedGlyphs * 4, |
44 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, | 44 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, |
45 }; | 45 }; |
46 | 46 |
47 void* fVertices; | 47 void* fVertices; |
48 int32_t fMaxVertices; | 48 int32_t fMaxVertices; |
49 GrTexture* fCurrTexture; | 49 GrTexture* fCurrTexture; |
50 SkAutoTUnref<GrEffect> fCachedEffect; | 50 SkAutoTUnref<GrEffect> fCachedEffect; |
51 // Used to check whether fCachedEffect is still valid. | 51 // Used to check whether fCachedEffect is still valid. |
52 uint32_t fEffectTextureUniqueID; | 52 uint32_t fEffectTextureUniqueID; |
53 int fCurrVertex; | 53 int fCurrVertex; |
54 SkRect fVertexBounds; | 54 SkRect fVertexBounds; |
55 }; | 55 }; |
56 | 56 |
57 #endif | 57 #endif |
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