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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrTextContext_DEFINED | 8 #ifndef GrTextContext_DEFINED |
9 #define GrTextContext_DEFINED | 9 #define GrTextContext_DEFINED |
10 | 10 |
(...skipping 10 matching lines...) Expand all Loading... |
21 class SkDrawFilter; | 21 class SkDrawFilter; |
22 class SkTextBlob; | 22 class SkTextBlob; |
23 | 23 |
24 /* | 24 /* |
25 * This class wraps the state for a single text render | 25 * This class wraps the state for a single text render |
26 */ | 26 */ |
27 class GrTextContext { | 27 class GrTextContext { |
28 public: | 28 public: |
29 virtual ~GrTextContext(); | 29 virtual ~GrTextContext(); |
30 | 30 |
31 void drawText(GrDrawContext* dc, GrRenderTarget* rt, | 31 void drawText(GrDrawContext* dc, |
32 const GrClip&, const GrPaint&, const SkPaint&, | 32 const GrClip&, const GrPaint&, const SkPaint&, |
33 const SkMatrix& viewMatrix, const char text[], size_t byteLeng
th, SkScalar x, | 33 const SkMatrix& viewMatrix, const char text[], size_t byteLeng
th, SkScalar x, |
34 SkScalar y, const SkIRect& clipBounds); | 34 SkScalar y, const SkIRect& clipBounds); |
35 void drawPosText(GrDrawContext* dc, GrRenderTarget* rt, | 35 void drawPosText(GrDrawContext* dc, |
36 const GrClip&, const GrPaint&, const SkPaint&, | 36 const GrClip&, const GrPaint&, const SkPaint&, |
37 const SkMatrix& viewMatrix, | 37 const SkMatrix& viewMatrix, |
38 const char text[], size_t byteLength, | 38 const char text[], size_t byteLength, |
39 const SkScalar pos[], int scalarsPerPosition, | 39 const SkScalar pos[], int scalarsPerPosition, |
40 const SkPoint& offset, const SkIRect& clipBounds); | 40 const SkPoint& offset, const SkIRect& clipBounds); |
41 virtual void drawTextBlob(GrDrawContext* dc, GrRenderTarget*, const GrClip&,
const SkPaint&, | 41 virtual void drawTextBlob(GrDrawContext* dc, const GrClip&, const SkPaint&, |
42 const SkMatrix& viewMatrix, const SkTextBlob*, | 42 const SkMatrix& viewMatrix, const SkTextBlob*, |
43 SkScalar x, SkScalar y, | 43 SkScalar x, SkScalar y, |
44 SkDrawFilter*, const SkIRect& clipBounds); | 44 SkDrawFilter*, const SkIRect& clipBounds); |
45 | 45 |
46 static bool ShouldDisableLCD(const SkPaint& paint); | 46 static bool ShouldDisableLCD(const SkPaint& paint); |
47 | 47 |
48 protected: | 48 protected: |
49 GrTextContext* fFallbackTextContext; | 49 GrTextContext* fFallbackTextContext; |
50 GrContext* fContext; | 50 GrContext* fContext; |
51 SkSurfaceProps fSurfaceProps; | 51 SkSurfaceProps fSurfaceProps; |
52 | 52 |
53 GrTextContext(GrContext*, const SkSurfaceProps&); | 53 GrTextContext(GrContext*, const SkSurfaceProps&); |
54 | 54 |
55 virtual bool canDraw(const SkPaint&, const SkMatrix& viewMatrix) = 0; | 55 virtual bool canDraw(const SkPaint&, const SkMatrix& viewMatrix) = 0; |
56 | 56 |
57 virtual void onDrawText(GrDrawContext*, GrRenderTarget*, const GrClip&, | 57 virtual void onDrawText(GrDrawContext*, const GrClip&, |
58 const GrPaint&, const SkPaint&, | 58 const GrPaint&, const SkPaint&, |
59 const SkMatrix& viewMatrix, const char text[], size_
t byteLength, | 59 const SkMatrix& viewMatrix, const char text[], size_
t byteLength, |
60 SkScalar x, SkScalar y, const SkIRect& clipBounds) =
0; | 60 SkScalar x, SkScalar y, const SkIRect& clipBounds) =
0; |
61 virtual void onDrawPosText(GrDrawContext*, GrRenderTarget*, const GrClip&, | 61 virtual void onDrawPosText(GrDrawContext*, const GrClip&, |
62 const GrPaint&, const SkPaint&, | 62 const GrPaint&, const SkPaint&, |
63 const SkMatrix& viewMatrix, | 63 const SkMatrix& viewMatrix, |
64 const char text[], size_t byteLength, | 64 const char text[], size_t byteLength, |
65 const SkScalar pos[], int scalarsPerPosition, | 65 const SkScalar pos[], int scalarsPerPosition, |
66 const SkPoint& offset, const SkIRect& clipBounds)
= 0; | 66 const SkPoint& offset, const SkIRect& clipBounds)
= 0; |
67 | 67 |
68 void drawTextAsPath(GrDrawContext*, const GrClip& clip, | 68 void drawTextAsPath(GrDrawContext*, const GrClip& clip, |
69 const SkPaint& origPaint, const SkMatrix& viewMatrix, | 69 const SkPaint& origPaint, const SkMatrix& viewMatrix, |
70 const char text[], size_t byteLength, SkScalar x, SkScal
ar y, | 70 const char text[], size_t byteLength, SkScalar x, SkScal
ar y, |
71 const SkIRect& clipBounds); | 71 const SkIRect& clipBounds); |
72 void drawPosTextAsPath(GrDrawContext*, const GrClip& clip, | 72 void drawPosTextAsPath(GrDrawContext*, const GrClip& clip, |
73 const SkPaint& origPaint, const SkMatrix& viewMatrix, | 73 const SkPaint& origPaint, const SkMatrix& viewMatrix, |
74 const char text[], size_t byteLength, | 74 const char text[], size_t byteLength, |
75 const SkScalar pos[], int scalarsPerPosition, | 75 const SkScalar pos[], int scalarsPerPosition, |
76 const SkPoint& offset, const SkIRect& clipBounds); | 76 const SkPoint& offset, const SkIRect& clipBounds); |
77 | 77 |
78 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache); | 78 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache); |
79 // sets extent in stopVector and returns glyph count | 79 // sets extent in stopVector and returns glyph count |
80 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, | 80 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, |
81 const char text[], size_t byteLength, SkVector* stopV
ector); | 81 const char text[], size_t byteLength, SkVector* stopV
ector); |
82 static uint32_t FilterTextFlags(const SkSurfaceProps& surfaceProps, const Sk
Paint& paint); | 82 static uint32_t FilterTextFlags(const SkSurfaceProps& surfaceProps, const Sk
Paint& paint); |
83 | 83 |
84 friend class GrAtlasTextBatch; | 84 friend class GrAtlasTextBatch; |
85 }; | 85 }; |
86 | 86 |
87 #endif | 87 #endif |
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