joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef GrAtlasTextContext_DEFINED |
| 9 | #define GrAtlasTextContext_DEFINED |
| 10 | |
joshualitt | 374b2f7 | 2015-07-21 08:05:03 -0700 | [diff] [blame] | 11 | #include "GrAtlasTextBlob.h" |
joshualitt | 1acabf3 | 2015-12-10 09:10:10 -0800 | [diff] [blame] | 12 | #include "GrDistanceFieldAdjustTable.h" |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 13 | #include "GrGeometryProcessor.h" |
Brian Salomon | 6f1d36c | 2017-01-13 12:02:17 -0500 | [diff] [blame] | 14 | #include "GrTextUtils.h" |
halcanary | 3377975 | 2015-10-27 14:01:05 -0700 | [diff] [blame] | 15 | #include "SkTextBlobRunIterator.h" |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 16 | |
Hal Canary | 6f6961e | 2017-01-31 13:50:44 -0500 | [diff] [blame] | 17 | #if GR_TEST_UTILS |
Brian Salomon | 5ec9def | 2016-12-20 15:34:05 -0500 | [diff] [blame] | 18 | #include "GrDrawOpTest.h" |
joshualitt | 79dfb2b | 2015-05-11 08:58:08 -0700 | [diff] [blame] | 19 | #endif |
| 20 | |
Brian Salomon | 9afd371 | 2016-12-01 10:59:09 -0500 | [diff] [blame] | 21 | class GrDrawOp; |
Brian Osman | 1105224 | 2016-10-27 14:47:55 -0400 | [diff] [blame] | 22 | class GrRenderTargetContext; |
joshualitt | b7133be | 2015-04-08 09:08:31 -0700 | [diff] [blame] | 23 | class GrTextBlobCache; |
joshualitt | 6c2c2b0 | 2015-07-24 10:37:00 -0700 | [diff] [blame] | 24 | class SkGlyph; |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 25 | |
| 26 | /* |
joshualitt | 8e84a1e | 2016-02-16 11:09:25 -0800 | [diff] [blame] | 27 | * Renders text using some kind of an atlas, ie BitmapText or DistanceField text |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 28 | */ |
joshualitt | 8e84a1e | 2016-02-16 11:09:25 -0800 | [diff] [blame] | 29 | class GrAtlasTextContext { |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 30 | public: |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 31 | static GrAtlasTextContext* Create(); |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 32 | |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 33 | bool canDraw(const SkPaint&, const SkMatrix& viewMatrix, const SkSurfaceProps&, |
| 34 | const GrShaderCaps&); |
Brian Salomon | 6f1d36c | 2017-01-13 12:02:17 -0500 | [diff] [blame] | 35 | |
| 36 | void drawText(GrContext*, GrRenderTargetContext*, const GrClip&, const SkPaint&, |
joshualitt | 2c89bc1 | 2016-02-11 05:42:30 -0800 | [diff] [blame] | 37 | const SkMatrix& viewMatrix, const SkSurfaceProps&, const char text[], |
Brian Salomon | 82f4431 | 2017-01-11 13:42:54 -0500 | [diff] [blame] | 38 | size_t byteLength, SkScalar x, SkScalar y, const SkIRect& regionClipBounds); |
Brian Salomon | 6f1d36c | 2017-01-13 12:02:17 -0500 | [diff] [blame] | 39 | void drawPosText(GrContext*, GrRenderTargetContext*, const GrClip&, const SkPaint&, |
Brian Salomon | 82f4431 | 2017-01-11 13:42:54 -0500 | [diff] [blame] | 40 | const SkMatrix& viewMatrix, const SkSurfaceProps&, const char text[], |
| 41 | size_t byteLength, const SkScalar pos[], int scalarsPerPosition, |
joshualitt | 8e84a1e | 2016-02-16 11:09:25 -0800 | [diff] [blame] | 42 | const SkPoint& offset, const SkIRect& regionClipBounds); |
Brian Osman | 1105224 | 2016-10-27 14:47:55 -0400 | [diff] [blame] | 43 | void drawTextBlob(GrContext*, GrRenderTargetContext*, const GrClip&, const SkPaint&, |
joshualitt | 2c89bc1 | 2016-02-11 05:42:30 -0800 | [diff] [blame] | 44 | const SkMatrix& viewMatrix, const SkSurfaceProps&, const SkTextBlob*, |
| 45 | SkScalar x, SkScalar y, |
joshualitt | 8e84a1e | 2016-02-16 11:09:25 -0800 | [diff] [blame] | 46 | SkDrawFilter*, const SkIRect& clipBounds); |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 47 | |
joshualitt | e55750e | 2016-02-10 12:52:21 -0800 | [diff] [blame] | 48 | private: |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 49 | GrAtlasTextContext(); |
joshualitt | e55750e | 2016-02-10 12:52:21 -0800 | [diff] [blame] | 50 | |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 51 | // sets up the descriptor on the blob and returns a detached cache. Client must attach |
Brian Salomon | 6f1d36c | 2017-01-13 12:02:17 -0500 | [diff] [blame] | 52 | inline static SkColor ComputeCanonicalColor(const SkPaint&, bool lcd); |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 53 | // Determines if we need to use fake gamma (and contrast boost): |
Brian Salomon | f3569f0 | 2017-10-24 12:52:33 -0400 | [diff] [blame^] | 54 | inline static uint32_t ComputeScalerContextFlags(const GrColorSpaceInfo&); |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 55 | static void RegenerateTextBlob(GrAtlasTextBlob* bmp, |
Brian Salomon | f856fd1 | 2016-12-16 14:24:34 -0500 | [diff] [blame] | 56 | GrAtlasGlyphCache*, |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 57 | const GrShaderCaps&, |
Brian Salomon | 6f1d36c | 2017-01-13 12:02:17 -0500 | [diff] [blame] | 58 | const GrTextUtils::Paint&, |
brianosman | a1e8f8d | 2016-04-08 06:47:54 -0700 | [diff] [blame] | 59 | uint32_t scalerContextFlags, |
joshualitt | 27004b7 | 2016-02-11 12:00:33 -0800 | [diff] [blame] | 60 | const SkMatrix& viewMatrix, |
| 61 | const SkSurfaceProps&, |
| 62 | const SkTextBlob* blob, SkScalar x, SkScalar y, |
| 63 | SkDrawFilter* drawFilter); |
joshualitt | 9e36c1a | 2015-04-14 12:17:27 -0700 | [diff] [blame] | 64 | inline static bool HasLCD(const SkTextBlob*); |
joshualitt | 9bd2daf | 2015-04-17 09:30:06 -0700 | [diff] [blame] | 65 | |
Florin Malita | c337c9e | 2017-03-10 18:02:29 +0000 | [diff] [blame] | 66 | static inline sk_sp<GrAtlasTextBlob> MakeDrawTextBlob(GrTextBlobCache*, GrAtlasGlyphCache*, |
| 67 | const GrShaderCaps&, |
| 68 | const GrTextUtils::Paint&, |
| 69 | uint32_t scalerContextFlags, |
| 70 | const SkMatrix& viewMatrix, |
| 71 | const SkSurfaceProps&, |
| 72 | const char text[], size_t byteLength, |
| 73 | SkScalar x, SkScalar y); |
| 74 | static inline sk_sp<GrAtlasTextBlob> MakeDrawPosTextBlob(GrTextBlobCache*, GrAtlasGlyphCache*, |
| 75 | const GrShaderCaps&, |
| 76 | const GrTextUtils::Paint&, |
| 77 | uint32_t scalerContextFlags, |
| 78 | const SkMatrix& viewMatrix, |
| 79 | const SkSurfaceProps&, |
| 80 | const char text[], size_t byteLength, |
| 81 | const SkScalar pos[], |
| 82 | int scalarsPerPosition, |
| 83 | const SkPoint& offset); |
Hal Canary | 144caf5 | 2016-11-07 17:57:18 -0500 | [diff] [blame] | 84 | const GrDistanceFieldAdjustTable* dfAdjustTable() const { return fDistanceAdjustTable.get(); } |
joshualitt | 79dfb2b | 2015-05-11 08:58:08 -0700 | [diff] [blame] | 85 | |
Hal Canary | 144caf5 | 2016-11-07 17:57:18 -0500 | [diff] [blame] | 86 | sk_sp<const GrDistanceFieldAdjustTable> fDistanceAdjustTable; |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 87 | |
Hal Canary | 6f6961e | 2017-01-31 13:50:44 -0500 | [diff] [blame] | 88 | #if GR_TEST_UTILS |
Brian Salomon | 5ec9def | 2016-12-20 15:34:05 -0500 | [diff] [blame] | 89 | static const uint32_t kTextBlobOpScalerContextFlags = |
| 90 | SkPaint::kFakeGammaAndBoostContrast_ScalerContextFlags; |
Brian Salomon | 44acb5b | 2017-07-18 19:59:24 -0400 | [diff] [blame] | 91 | GR_DRAW_OP_TEST_FRIEND(GrAtlasTextOp); |
joshualitt | 79dfb2b | 2015-05-11 08:58:08 -0700 | [diff] [blame] | 92 | #endif |
joshualitt | 1d89e8d | 2015-04-01 12:40:54 -0700 | [diff] [blame] | 93 | }; |
| 94 | |
| 95 | #endif |