1 2 /* 3 * Copyright 2010 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 11 #ifndef GrTextContext_DEFINED 12 #define GrTextContext_DEFINED 13 14 #include "GrContext.h" 15 #include "GrGlyph.h" 16 #include "GrPaint.h" 17 18 struct GrGpuTextVertex; 19 class GrContext; 20 class GrTextStrike; 21 class GrFontScaler; 22 class GrDrawTarget; 23 24 class GrTextContext { 25 public: 26 GrTextContext(GrContext*, const GrPaint&); 27 ~GrTextContext(); 28 29 void drawPackedGlyph(GrGlyph::PackedID, GrFixed left, GrFixed top, 30 GrFontScaler*); 31 32 void flush(); // optional; automatically called by destructor 33 34 private: 35 GrPaint fPaint; 36 GrVertexLayout fVertexLayout; 37 GrContext* fContext; 38 GrDrawTarget* fDrawTarget; 39 40 GrFontScaler* fScaler; 41 GrTextStrike* fStrike; 42 43 inline void flushGlyphs(); 44 void setupDrawTarget(); 45 46 enum { 47 kMinRequestedGlyphs = 1, 48 kDefaultRequestedGlyphs = 64, 49 kMinRequestedVerts = kMinRequestedGlyphs * 4, 50 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, 51 }; 52 53 GrGpuTextVertex* fVertices; 54 55 int32_t fMaxVertices; 56 GrTexture* fCurrTexture; 57 int fCurrVertex; 58 59 GrIRect fClipRect; 60 GrContext::AutoMatrix fAutoMatrix; 61 }; 62 63 #endif 64
