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Side by Side Diff: src/gpu/GrTextContext.h

Issue 1050633002: Revert of BitmapTextBatch and BitmapTextBlob (Closed) Base URL: https://skia.googlesource.com/skia.git@dfpr_take_2
Patch Set: Created 5 years, 8 months ago
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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
11 #include "GrClip.h" 11 #include "GrClip.h"
12 #include "GrGlyph.h" 12 #include "GrGlyph.h"
13 #include "GrPaint.h" 13 #include "GrPaint.h"
14 #include "SkDeviceProperties.h" 14 #include "SkDeviceProperties.h"
15 15
16 #include "SkPostConfig.h" 16 #include "SkPostConfig.h"
17 17
18 class GrClip; 18 class GrClip;
19 class GrContext; 19 class GrContext;
20 class GrDrawTarget; 20 class GrDrawTarget;
21 class GrFontScaler; 21 class GrFontScaler;
22 class SkDrawFilter; 22 class SkDrawFilter;
23 class SkGpuDevice; 23 class SkGpuDevice;
24 class SkTextBlob; 24 class SkTextBlob;
25 25
26 // For testing textblobs on GPU.
27 //#define USE_BITMAP_TEXTBLOBS
28
29 /* 26 /*
30 * This class wraps the state for a single text render 27 * This class wraps the state for a single text render
31 */ 28 */
32 class GrTextContext { 29 class GrTextContext {
33 public: 30 public:
34 virtual ~GrTextContext(); 31 virtual ~GrTextContext();
35 32
36 void drawText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const SkPa int&, 33 void drawText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const SkPa int&,
37 const SkMatrix& viewMatrix, const char text[], size_t byteLeng th, SkScalar x, 34 const SkMatrix& viewMatrix, const char text[], size_t byteLeng th, SkScalar x,
38 SkScalar y, const SkIRect& clipBounds); 35 SkScalar y, const SkIRect& clipBounds);
39 void drawPosText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const Sk Paint&, 36 void drawPosText(GrRenderTarget* rt, const GrClip&, const GrPaint&, const Sk Paint&,
40 const SkMatrix& viewMatrix, 37 const SkMatrix& viewMatrix,
41 const char text[], size_t byteLength, 38 const char text[], size_t byteLength,
42 const SkScalar pos[], int scalarsPerPosition, 39 const SkScalar pos[], int scalarsPerPosition,
43 const SkPoint& offset, const SkIRect& clipBounds); 40 const SkPoint& offset, const SkIRect& clipBounds);
44 virtual void drawTextBlob(GrRenderTarget*, const GrClip&, const SkPaint&, 41 void drawTextBlob(GrRenderTarget*, const GrClip&, const SkPaint&,
45 const SkMatrix& viewMatrix, const SkTextBlob*, SkS calar x, SkScalar y, 42 const SkMatrix& viewMatrix, const SkTextBlob*, SkScalar x, SkScalar y,
46 SkDrawFilter*, const SkIRect& clipBounds); 43 SkDrawFilter*, const SkIRect& clipBounds);
47 44
48 protected: 45 protected:
49 GrTextContext* fFallbackTextContext; 46 GrTextContext* fFallbackTextContext;
50 GrContext* fContext; 47 GrContext* fContext;
51 // TODO we probably don't really need to store a back pointer to the owning SkGpuDevice, except 48 // TODO we probably don't really need to store a back pointer to the owning SkGpuDevice, except
52 // we need to be able to call drawPath on it in the event no other text cont ext can draw the 49 // we need to be able to call drawPath on it in the event no other text cont ext can draw the
53 // text. We might be able to move this logic to context though. This is un reffed because 50 // text. We might be able to move this logic to context though. This is un reffed because
54 // GrTextContext is completely owned by SkGpuDevice 51 // GrTextContext is completely owned by SkGpuDevice
55 SkGpuDevice* fGpuDevice; 52 SkGpuDevice* fGpuDevice;
56 SkDeviceProperties fDeviceProperties; 53 SkDeviceProperties fDeviceProperties;
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86 const SkPoint& offset, const SkIRect& clipBounds); 83 const SkPoint& offset, const SkIRect& clipBounds);
87 84
88 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, 85 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&,
89 const SkIRect& regionClipBounds); 86 const SkIRect& regionClipBounds);
90 void finish() { fDrawTarget = NULL; } 87 void finish() { fDrawTarget = NULL; }
91 88
92 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache); 89 static GrFontScaler* GetGrFontScaler(SkGlyphCache* cache);
93 // sets extent in stopVector and returns glyph count 90 // sets extent in stopVector and returns glyph count
94 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, 91 static int MeasureText(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc,
95 const char text[], size_t byteLength, SkVector* stopV ector); 92 const char text[], size_t byteLength, SkVector* stopV ector);
96
97 friend class BitmapTextBatch;
98 }; 93 };
99 94
100 #endif 95 #endif
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