epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2006 The Android Open Source Project |
| 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 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | #include "SkPaint.h" |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 10 | #include "SkAnnotation.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 11 | #include "SkColorFilter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 12 | #include "SkFontHost.h" |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 13 | #include "SkImageFilter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | #include "SkMaskFilter.h" |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 15 | #include "SkMaskGamma.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkPathEffect.h" |
| 17 | #include "SkRasterizer.h" |
| 18 | #include "SkShader.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 19 | #include "SkScalar.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 20 | #include "SkScalerContext.h" |
| 21 | #include "SkStroke.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 22 | #include "SkTextFormatParams.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 23 | #include "SkTypeface.h" |
| 24 | #include "SkXfermode.h" |
| 25 | #include "SkAutoKern.h" |
djsollen@google.com | 60abb07 | 2012-02-15 18:49:15 +0000 | [diff] [blame] | 26 | #include "SkGlyphCache.h" |
reed@google.com | aefdd06 | 2012-02-29 13:03:00 +0000 | [diff] [blame] | 27 | #include "SkPaintDefaults.h" |
djsollen@google.com | 2b2ede3 | 2012-04-12 13:24:04 +0000 | [diff] [blame] | 28 | #include "SkOrderedWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 30 | // define this to get a printf for out-of-range parameter in setters |
| 31 | // e.g. setTextSize(-1) |
| 32 | //#define SK_REPORT_API_RANGE_CHECK |
| 33 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 34 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 35 | #define GEN_ID_INC fGenerationID++ |
| 36 | #define GEN_ID_INC_EVAL(expression) if (expression) { fGenerationID++; } |
| 37 | #else |
| 38 | #define GEN_ID_INC |
| 39 | #define GEN_ID_INC_EVAL(expression) |
| 40 | #endif |
| 41 | |
reed@android.com | a3122b9 | 2009-08-13 20:38:25 +0000 | [diff] [blame] | 42 | SkPaint::SkPaint() { |
| 43 | // since we may have padding, we zero everything so that our memcmp() call |
| 44 | // in operator== will work correctly. |
| 45 | // with this, we can skip 0 and null individual initializations |
| 46 | sk_bzero(this, sizeof(*this)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 47 | |
reed@android.com | a3122b9 | 2009-08-13 20:38:25 +0000 | [diff] [blame] | 48 | #if 0 // not needed with the bzero call above |
| 49 | fTypeface = NULL; |
| 50 | fTextSkewX = 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | fPathEffect = NULL; |
| 52 | fShader = NULL; |
| 53 | fXfermode = NULL; |
| 54 | fMaskFilter = NULL; |
| 55 | fColorFilter = NULL; |
| 56 | fRasterizer = NULL; |
| 57 | fLooper = NULL; |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 58 | fImageFilter = NULL; |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 59 | fAnnotation = NULL; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 60 | fWidth = 0; |
reed@android.com | a3122b9 | 2009-08-13 20:38:25 +0000 | [diff] [blame] | 61 | #endif |
| 62 | |
reed@google.com | aefdd06 | 2012-02-29 13:03:00 +0000 | [diff] [blame] | 63 | fTextSize = SkPaintDefaults_TextSize; |
reed@android.com | a3122b9 | 2009-08-13 20:38:25 +0000 | [diff] [blame] | 64 | fTextScaleX = SK_Scalar1; |
| 65 | fColor = SK_ColorBLACK; |
reed@google.com | aefdd06 | 2012-02-29 13:03:00 +0000 | [diff] [blame] | 66 | fMiterLimit = SkPaintDefaults_MiterLimit; |
| 67 | fFlags = SkPaintDefaults_Flags; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 68 | fCapType = kDefault_Cap; |
| 69 | fJoinType = kDefault_Join; |
| 70 | fTextAlign = kLeft_Align; |
| 71 | fStyle = kFill_Style; |
| 72 | fTextEncoding = kUTF8_TextEncoding; |
reed@google.com | aefdd06 | 2012-02-29 13:03:00 +0000 | [diff] [blame] | 73 | fHinting = SkPaintDefaults_Hinting; |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 74 | fPrivFlags = 0; |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 75 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 76 | fGenerationID = 0; |
| 77 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 78 | } |
| 79 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 80 | SkPaint::SkPaint(const SkPaint& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 81 | memcpy(this, &src, sizeof(src)); |
| 82 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 83 | SkSafeRef(fTypeface); |
| 84 | SkSafeRef(fPathEffect); |
| 85 | SkSafeRef(fShader); |
| 86 | SkSafeRef(fXfermode); |
| 87 | SkSafeRef(fMaskFilter); |
| 88 | SkSafeRef(fColorFilter); |
| 89 | SkSafeRef(fRasterizer); |
| 90 | SkSafeRef(fLooper); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 91 | SkSafeRef(fImageFilter); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 92 | SkSafeRef(fAnnotation); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 93 | } |
| 94 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 95 | SkPaint::~SkPaint() { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 96 | SkSafeUnref(fTypeface); |
| 97 | SkSafeUnref(fPathEffect); |
| 98 | SkSafeUnref(fShader); |
| 99 | SkSafeUnref(fXfermode); |
| 100 | SkSafeUnref(fMaskFilter); |
| 101 | SkSafeUnref(fColorFilter); |
| 102 | SkSafeUnref(fRasterizer); |
| 103 | SkSafeUnref(fLooper); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 104 | SkSafeUnref(fImageFilter); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 105 | SkSafeUnref(fAnnotation); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 106 | } |
| 107 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 108 | SkPaint& SkPaint::operator=(const SkPaint& src) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 109 | SkASSERT(&src); |
| 110 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 111 | SkSafeRef(src.fTypeface); |
| 112 | SkSafeRef(src.fPathEffect); |
| 113 | SkSafeRef(src.fShader); |
| 114 | SkSafeRef(src.fXfermode); |
| 115 | SkSafeRef(src.fMaskFilter); |
| 116 | SkSafeRef(src.fColorFilter); |
| 117 | SkSafeRef(src.fRasterizer); |
| 118 | SkSafeRef(src.fLooper); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 119 | SkSafeRef(src.fImageFilter); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 120 | SkSafeRef(src.fAnnotation); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 121 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 122 | SkSafeUnref(fTypeface); |
| 123 | SkSafeUnref(fPathEffect); |
| 124 | SkSafeUnref(fShader); |
| 125 | SkSafeUnref(fXfermode); |
| 126 | SkSafeUnref(fMaskFilter); |
| 127 | SkSafeUnref(fColorFilter); |
| 128 | SkSafeUnref(fRasterizer); |
| 129 | SkSafeUnref(fLooper); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 130 | SkSafeUnref(fImageFilter); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 131 | SkSafeUnref(fAnnotation); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 133 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 134 | uint32_t oldGenerationID = fGenerationID; |
| 135 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 136 | memcpy(this, &src, sizeof(src)); |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 137 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 138 | fGenerationID = oldGenerationID + 1; |
| 139 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 140 | |
| 141 | return *this; |
| 142 | } |
| 143 | |
reed@google.com | b530ef5 | 2011-07-20 19:55:42 +0000 | [diff] [blame] | 144 | bool operator==(const SkPaint& a, const SkPaint& b) { |
djsollen@google.com | b44cd65 | 2011-12-01 17:09:21 +0000 | [diff] [blame] | 145 | #ifdef SK_BUILD_FOR_ANDROID |
| 146 | //assumes that fGenerationID is the last field in the struct |
| 147 | return !memcmp(&a, &b, SK_OFFSETOF(SkPaint, fGenerationID)); |
| 148 | #else |
reed@google.com | b530ef5 | 2011-07-20 19:55:42 +0000 | [diff] [blame] | 149 | return !memcmp(&a, &b, sizeof(a)); |
djsollen@google.com | b44cd65 | 2011-12-01 17:09:21 +0000 | [diff] [blame] | 150 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 151 | } |
| 152 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 153 | void SkPaint::reset() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 154 | SkPaint init; |
| 155 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 156 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 157 | uint32_t oldGenerationID = fGenerationID; |
| 158 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 159 | *this = init; |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 160 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 161 | fGenerationID = oldGenerationID + 1; |
| 162 | #endif |
| 163 | } |
| 164 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 165 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 166 | uint32_t SkPaint::getGenerationID() const { |
| 167 | return fGenerationID; |
| 168 | } |
| 169 | #endif |
| 170 | |
djsollen@google.com | 60abb07 | 2012-02-15 18:49:15 +0000 | [diff] [blame] | 171 | #ifdef SK_BUILD_FOR_ANDROID |
| 172 | unsigned SkPaint::getBaseGlyphCount(SkUnichar text) const { |
| 173 | SkAutoGlyphCache autoCache(*this, NULL); |
| 174 | SkGlyphCache* cache = autoCache.getCache(); |
| 175 | return cache->getBaseGlyphCount(text); |
| 176 | } |
| 177 | #endif |
| 178 | |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 179 | void SkPaint::setHinting(Hinting hintingLevel) { |
| 180 | GEN_ID_INC_EVAL((unsigned) hintingLevel != fHinting); |
| 181 | fHinting = hintingLevel; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 182 | } |
| 183 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 184 | void SkPaint::setFlags(uint32_t flags) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 185 | GEN_ID_INC_EVAL(fFlags != flags); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | fFlags = flags; |
| 187 | } |
| 188 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 189 | void SkPaint::setAntiAlias(bool doAA) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 190 | this->setFlags(SkSetClearMask(fFlags, doAA, kAntiAlias_Flag)); |
| 191 | } |
| 192 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 193 | void SkPaint::setDither(bool doDither) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 194 | this->setFlags(SkSetClearMask(fFlags, doDither, kDither_Flag)); |
| 195 | } |
| 196 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 197 | void SkPaint::setSubpixelText(bool doSubpixel) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 198 | this->setFlags(SkSetClearMask(fFlags, doSubpixel, kSubpixelText_Flag)); |
| 199 | } |
| 200 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 201 | void SkPaint::setLCDRenderText(bool doLCDRender) { |
agl@chromium.org | 309485b | 2009-07-21 17:41:32 +0000 | [diff] [blame] | 202 | this->setFlags(SkSetClearMask(fFlags, doLCDRender, kLCDRenderText_Flag)); |
| 203 | } |
| 204 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 205 | void SkPaint::setEmbeddedBitmapText(bool doEmbeddedBitmapText) { |
agl@chromium.org | e95c91e | 2010-01-04 18:27:55 +0000 | [diff] [blame] | 206 | this->setFlags(SkSetClearMask(fFlags, doEmbeddedBitmapText, kEmbeddedBitmapText_Flag)); |
| 207 | } |
| 208 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 209 | void SkPaint::setAutohinted(bool useAutohinter) { |
agl@chromium.org | a2c71cb | 2010-06-17 20:49:17 +0000 | [diff] [blame] | 210 | this->setFlags(SkSetClearMask(fFlags, useAutohinter, kAutoHinting_Flag)); |
| 211 | } |
| 212 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 213 | void SkPaint::setLinearText(bool doLinearText) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | this->setFlags(SkSetClearMask(fFlags, doLinearText, kLinearText_Flag)); |
| 215 | } |
| 216 | |
reed@google.com | 830a23e | 2011-11-10 15:20:49 +0000 | [diff] [blame] | 217 | void SkPaint::setVerticalText(bool doVertical) { |
reed@google.com | 830a23e | 2011-11-10 15:20:49 +0000 | [diff] [blame] | 218 | this->setFlags(SkSetClearMask(fFlags, doVertical, kVerticalText_Flag)); |
| 219 | } |
| 220 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 221 | void SkPaint::setUnderlineText(bool doUnderline) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 222 | this->setFlags(SkSetClearMask(fFlags, doUnderline, kUnderlineText_Flag)); |
| 223 | } |
| 224 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 225 | void SkPaint::setStrikeThruText(bool doStrikeThru) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 226 | this->setFlags(SkSetClearMask(fFlags, doStrikeThru, kStrikeThruText_Flag)); |
| 227 | } |
| 228 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 229 | void SkPaint::setFakeBoldText(bool doFakeBold) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 230 | this->setFlags(SkSetClearMask(fFlags, doFakeBold, kFakeBoldText_Flag)); |
| 231 | } |
| 232 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 233 | void SkPaint::setDevKernText(bool doDevKern) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 234 | this->setFlags(SkSetClearMask(fFlags, doDevKern, kDevKernText_Flag)); |
| 235 | } |
| 236 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 237 | void SkPaint::setFilterBitmap(bool doFilter) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 238 | this->setFlags(SkSetClearMask(fFlags, doFilter, kFilterBitmap_Flag)); |
| 239 | } |
| 240 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 241 | void SkPaint::setStyle(Style style) { |
| 242 | if ((unsigned)style < kStyleCount) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 243 | GEN_ID_INC_EVAL((unsigned)style != fStyle); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 244 | fStyle = style; |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 245 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 246 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 247 | SkDebugf("SkPaint::setStyle(%d) out of range\n", style); |
| 248 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 249 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 250 | } |
| 251 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 252 | void SkPaint::setColor(SkColor color) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 253 | GEN_ID_INC_EVAL(color != fColor); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 254 | fColor = color; |
| 255 | } |
| 256 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 257 | void SkPaint::setAlpha(U8CPU a) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 258 | this->setColor(SkColorSetARGB(a, SkColorGetR(fColor), |
| 259 | SkColorGetG(fColor), SkColorGetB(fColor))); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 260 | } |
| 261 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 262 | void SkPaint::setARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 263 | this->setColor(SkColorSetARGB(a, r, g, b)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | } |
| 265 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 266 | void SkPaint::setStrokeWidth(SkScalar width) { |
| 267 | if (width >= 0) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 268 | GEN_ID_INC_EVAL(width != fWidth); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 269 | fWidth = width; |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 270 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 271 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 272 | SkDebugf("SkPaint::setStrokeWidth() called with negative value\n"); |
| 273 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 274 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 275 | } |
| 276 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 277 | void SkPaint::setStrokeMiter(SkScalar limit) { |
| 278 | if (limit >= 0) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 279 | GEN_ID_INC_EVAL(limit != fMiterLimit); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 280 | fMiterLimit = limit; |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 281 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 282 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 283 | SkDebugf("SkPaint::setStrokeMiter() called with negative value\n"); |
| 284 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 285 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 286 | } |
| 287 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 288 | void SkPaint::setStrokeCap(Cap ct) { |
| 289 | if ((unsigned)ct < kCapCount) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 290 | GEN_ID_INC_EVAL((unsigned)ct != fCapType); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 291 | fCapType = SkToU8(ct); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 292 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 293 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 294 | SkDebugf("SkPaint::setStrokeCap(%d) out of range\n", ct); |
| 295 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 296 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 297 | } |
| 298 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 299 | void SkPaint::setStrokeJoin(Join jt) { |
| 300 | if ((unsigned)jt < kJoinCount) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 301 | GEN_ID_INC_EVAL((unsigned)jt != fJoinType); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 302 | fJoinType = SkToU8(jt); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 303 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 304 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 305 | SkDebugf("SkPaint::setStrokeJoin(%d) out of range\n", jt); |
| 306 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 307 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 308 | } |
| 309 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 310 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 311 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 312 | void SkPaint::setTextAlign(Align align) { |
| 313 | if ((unsigned)align < kAlignCount) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 314 | GEN_ID_INC_EVAL((unsigned)align != fTextAlign); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 315 | fTextAlign = SkToU8(align); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 316 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 317 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 318 | SkDebugf("SkPaint::setTextAlign(%d) out of range\n", align); |
| 319 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 320 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | } |
| 322 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 323 | void SkPaint::setTextSize(SkScalar ts) { |
djsollen@google.com | c6f2e7d | 2012-01-04 18:43:43 +0000 | [diff] [blame] | 324 | if (ts >= 0) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 325 | GEN_ID_INC_EVAL(ts != fTextSize); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 326 | fTextSize = ts; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 327 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 328 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 329 | SkDebugf("SkPaint::setTextSize() called with negative value\n"); |
| 330 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 331 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 332 | } |
| 333 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 334 | void SkPaint::setTextScaleX(SkScalar scaleX) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 335 | GEN_ID_INC_EVAL(scaleX != fTextScaleX); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 336 | fTextScaleX = scaleX; |
| 337 | } |
| 338 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 339 | void SkPaint::setTextSkewX(SkScalar skewX) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 340 | GEN_ID_INC_EVAL(skewX != fTextSkewX); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 341 | fTextSkewX = skewX; |
| 342 | } |
| 343 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 344 | void SkPaint::setTextEncoding(TextEncoding encoding) { |
| 345 | if ((unsigned)encoding <= kGlyphID_TextEncoding) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 346 | GEN_ID_INC_EVAL((unsigned)encoding != fTextEncoding); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 347 | fTextEncoding = encoding; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 348 | } else { |
reed@google.com | a323787 | 2011-07-05 19:20:48 +0000 | [diff] [blame] | 349 | #ifdef SK_REPORT_API_RANGE_CHECK |
| 350 | SkDebugf("SkPaint::setTextEncoding(%d) out of range\n", encoding); |
| 351 | #endif |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 352 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 353 | } |
| 354 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 355 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 356 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 357 | SkTypeface* SkPaint::setTypeface(SkTypeface* font) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 358 | SkRefCnt_SafeAssign(fTypeface, font); |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 359 | GEN_ID_INC; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 360 | return font; |
| 361 | } |
| 362 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 363 | SkRasterizer* SkPaint::setRasterizer(SkRasterizer* r) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 364 | SkRefCnt_SafeAssign(fRasterizer, r); |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 365 | GEN_ID_INC; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 366 | return r; |
| 367 | } |
| 368 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 369 | SkDrawLooper* SkPaint::setLooper(SkDrawLooper* looper) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 370 | SkRefCnt_SafeAssign(fLooper, looper); |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 371 | GEN_ID_INC; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 372 | return looper; |
| 373 | } |
| 374 | |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 375 | SkImageFilter* SkPaint::setImageFilter(SkImageFilter* imageFilter) { |
| 376 | SkRefCnt_SafeAssign(fImageFilter, imageFilter); |
| 377 | GEN_ID_INC; |
| 378 | return imageFilter; |
| 379 | } |
| 380 | |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 381 | SkAnnotation* SkPaint::setAnnotation(SkAnnotation* annotation) { |
| 382 | SkRefCnt_SafeAssign(fAnnotation, annotation); |
| 383 | GEN_ID_INC; |
| 384 | |
| 385 | bool isNoDraw = annotation && annotation->isNoDraw(); |
| 386 | fPrivFlags = SkSetClearMask(fPrivFlags, isNoDraw, kNoDrawAnnotation_PrivFlag); |
| 387 | |
| 388 | return annotation; |
| 389 | } |
| 390 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 391 | /////////////////////////////////////////////////////////////////////////////// |
| 392 | |
| 393 | #include "SkGlyphCache.h" |
| 394 | #include "SkUtils.h" |
| 395 | |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 396 | static void DetachDescProc(const SkDescriptor* desc, void* context) { |
| 397 | *((SkGlyphCache**)context) = SkGlyphCache::DetachCache(desc); |
| 398 | } |
| 399 | |
djsollen@google.com | 56c6977 | 2011-11-08 19:00:26 +0000 | [diff] [blame] | 400 | #ifdef SK_BUILD_FOR_ANDROID |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 401 | const SkGlyph& SkPaint::getUnicharMetrics(SkUnichar text) { |
| 402 | SkGlyphCache* cache; |
| 403 | descriptorProc(NULL, DetachDescProc, &cache, true); |
| 404 | |
| 405 | const SkGlyph& glyph = cache->getUnicharMetrics(text); |
| 406 | |
| 407 | SkGlyphCache::AttachCache(cache); |
| 408 | return glyph; |
| 409 | } |
| 410 | |
djsollen@google.com | 60abb07 | 2012-02-15 18:49:15 +0000 | [diff] [blame] | 411 | const SkGlyph& SkPaint::getGlyphMetrics(uint16_t glyphId) { |
| 412 | SkGlyphCache* cache; |
| 413 | descriptorProc(NULL, DetachDescProc, &cache, true); |
| 414 | |
| 415 | const SkGlyph& glyph = cache->getGlyphIDMetrics(glyphId); |
| 416 | |
| 417 | SkGlyphCache::AttachCache(cache); |
| 418 | return glyph; |
| 419 | } |
| 420 | |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 421 | const void* SkPaint::findImage(const SkGlyph& glyph) { |
| 422 | // See ::detachCache() |
| 423 | SkGlyphCache* cache; |
| 424 | descriptorProc(NULL, DetachDescProc, &cache, true); |
| 425 | |
| 426 | const void* image = cache->findImage(glyph); |
| 427 | |
| 428 | SkGlyphCache::AttachCache(cache); |
| 429 | return image; |
| 430 | } |
| 431 | #endif |
| 432 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 433 | int SkPaint::textToGlyphs(const void* textData, size_t byteLength, |
| 434 | uint16_t glyphs[]) const { |
| 435 | if (byteLength == 0) { |
| 436 | return 0; |
| 437 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 438 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 439 | SkASSERT(textData != NULL); |
| 440 | |
| 441 | if (NULL == glyphs) { |
| 442 | switch (this->getTextEncoding()) { |
| 443 | case kUTF8_TextEncoding: |
| 444 | return SkUTF8_CountUnichars((const char*)textData, byteLength); |
| 445 | case kUTF16_TextEncoding: |
| 446 | return SkUTF16_CountUnichars((const uint16_t*)textData, |
| 447 | byteLength >> 1); |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 448 | case kUTF32_TextEncoding: |
| 449 | return byteLength >> 2; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 450 | case kGlyphID_TextEncoding: |
| 451 | return byteLength >> 1; |
| 452 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 453 | SkDEBUGFAIL("unknown text encoding"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 454 | } |
| 455 | return 0; |
| 456 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 457 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 458 | // if we get here, we have a valid glyphs[] array, so time to fill it in |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 459 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 460 | // handle this encoding before the setup for the glyphcache |
| 461 | if (this->getTextEncoding() == kGlyphID_TextEncoding) { |
| 462 | // we want to ignore the low bit of byteLength |
| 463 | memcpy(glyphs, textData, byteLength >> 1 << 1); |
| 464 | return byteLength >> 1; |
| 465 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 466 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 467 | SkAutoGlyphCache autoCache(*this, NULL); |
| 468 | SkGlyphCache* cache = autoCache.getCache(); |
| 469 | |
| 470 | const char* text = (const char*)textData; |
| 471 | const char* stop = text + byteLength; |
| 472 | uint16_t* gptr = glyphs; |
| 473 | |
| 474 | switch (this->getTextEncoding()) { |
| 475 | case SkPaint::kUTF8_TextEncoding: |
| 476 | while (text < stop) { |
| 477 | *gptr++ = cache->unicharToGlyph(SkUTF8_NextUnichar(&text)); |
| 478 | } |
| 479 | break; |
| 480 | case SkPaint::kUTF16_TextEncoding: { |
| 481 | const uint16_t* text16 = (const uint16_t*)text; |
| 482 | const uint16_t* stop16 = (const uint16_t*)stop; |
| 483 | while (text16 < stop16) { |
| 484 | *gptr++ = cache->unicharToGlyph(SkUTF16_NextUnichar(&text16)); |
| 485 | } |
| 486 | break; |
| 487 | } |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 488 | case kUTF32_TextEncoding: { |
| 489 | const int32_t* text32 = (const int32_t*)text; |
| 490 | const int32_t* stop32 = (const int32_t*)stop; |
| 491 | while (text32 < stop32) { |
| 492 | *gptr++ = cache->unicharToGlyph(*text32++); |
| 493 | } |
| 494 | break; |
| 495 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 496 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 497 | SkDEBUGFAIL("unknown text encoding"); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 498 | } |
| 499 | return gptr - glyphs; |
| 500 | } |
| 501 | |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 502 | bool SkPaint::containsText(const void* textData, size_t byteLength) const { |
| 503 | if (0 == byteLength) { |
| 504 | return true; |
| 505 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 506 | |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 507 | SkASSERT(textData != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 508 | |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 509 | // handle this encoding before the setup for the glyphcache |
| 510 | if (this->getTextEncoding() == kGlyphID_TextEncoding) { |
| 511 | const uint16_t* glyphID = static_cast<const uint16_t*>(textData); |
| 512 | size_t count = byteLength >> 1; |
| 513 | for (size_t i = 0; i < count; i++) { |
| 514 | if (0 == glyphID[i]) { |
| 515 | return false; |
| 516 | } |
| 517 | } |
| 518 | return true; |
| 519 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 520 | |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 521 | SkAutoGlyphCache autoCache(*this, NULL); |
| 522 | SkGlyphCache* cache = autoCache.getCache(); |
| 523 | |
| 524 | switch (this->getTextEncoding()) { |
| 525 | case SkPaint::kUTF8_TextEncoding: { |
| 526 | const char* text = static_cast<const char*>(textData); |
| 527 | const char* stop = text + byteLength; |
| 528 | while (text < stop) { |
| 529 | if (0 == cache->unicharToGlyph(SkUTF8_NextUnichar(&text))) { |
| 530 | return false; |
| 531 | } |
| 532 | } |
| 533 | break; |
| 534 | } |
| 535 | case SkPaint::kUTF16_TextEncoding: { |
| 536 | const uint16_t* text = static_cast<const uint16_t*>(textData); |
| 537 | const uint16_t* stop = text + (byteLength >> 1); |
| 538 | while (text < stop) { |
| 539 | if (0 == cache->unicharToGlyph(SkUTF16_NextUnichar(&text))) { |
| 540 | return false; |
| 541 | } |
| 542 | } |
| 543 | break; |
| 544 | } |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 545 | case SkPaint::kUTF32_TextEncoding: { |
| 546 | const int32_t* text = static_cast<const int32_t*>(textData); |
| 547 | const int32_t* stop = text + (byteLength >> 2); |
| 548 | while (text < stop) { |
| 549 | if (0 == cache->unicharToGlyph(*text++)) { |
| 550 | return false; |
| 551 | } |
| 552 | } |
| 553 | break; |
| 554 | } |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 555 | default: |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 556 | SkDEBUGFAIL("unknown text encoding"); |
reed@android.com | a5dcaf6 | 2010-02-05 17:12:32 +0000 | [diff] [blame] | 557 | return false; |
| 558 | } |
| 559 | return true; |
| 560 | } |
| 561 | |
reed@android.com | 9d3a985 | 2010-01-08 14:07:42 +0000 | [diff] [blame] | 562 | void SkPaint::glyphsToUnichars(const uint16_t glyphs[], int count, |
| 563 | SkUnichar textData[]) const { |
| 564 | if (count <= 0) { |
| 565 | return; |
| 566 | } |
| 567 | |
| 568 | SkASSERT(glyphs != NULL); |
| 569 | SkASSERT(textData != NULL); |
| 570 | |
| 571 | SkAutoGlyphCache autoCache(*this, NULL); |
| 572 | SkGlyphCache* cache = autoCache.getCache(); |
| 573 | |
| 574 | for (int index = 0; index < count; index++) { |
| 575 | textData[index] = cache->glyphToUnichar(glyphs[index]); |
| 576 | } |
| 577 | } |
| 578 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 579 | /////////////////////////////////////////////////////////////////////////////// |
| 580 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 581 | static const SkGlyph& sk_getMetrics_utf8_next(SkGlyphCache* cache, |
| 582 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 583 | SkASSERT(cache != NULL); |
| 584 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 585 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 586 | return cache->getUnicharMetrics(SkUTF8_NextUnichar(text)); |
| 587 | } |
| 588 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 589 | static const SkGlyph& sk_getMetrics_utf8_prev(SkGlyphCache* cache, |
| 590 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 591 | SkASSERT(cache != NULL); |
| 592 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 593 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 594 | return cache->getUnicharMetrics(SkUTF8_PrevUnichar(text)); |
| 595 | } |
| 596 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 597 | static const SkGlyph& sk_getMetrics_utf16_next(SkGlyphCache* cache, |
| 598 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 599 | SkASSERT(cache != NULL); |
| 600 | SkASSERT(text != NULL); |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 601 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 602 | return cache->getUnicharMetrics(SkUTF16_NextUnichar((const uint16_t**)text)); |
| 603 | } |
| 604 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 605 | static const SkGlyph& sk_getMetrics_utf16_prev(SkGlyphCache* cache, |
| 606 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 607 | SkASSERT(cache != NULL); |
| 608 | SkASSERT(text != NULL); |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 609 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 610 | return cache->getUnicharMetrics(SkUTF16_PrevUnichar((const uint16_t**)text)); |
| 611 | } |
| 612 | |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 613 | static const SkGlyph& sk_getMetrics_utf32_next(SkGlyphCache* cache, |
| 614 | const char** text) { |
| 615 | SkASSERT(cache != NULL); |
| 616 | SkASSERT(text != NULL); |
| 617 | |
| 618 | const int32_t* ptr = *(const int32_t**)text; |
| 619 | SkUnichar uni = *ptr++; |
| 620 | *text = (const char*)ptr; |
| 621 | return cache->getUnicharMetrics(uni); |
| 622 | } |
| 623 | |
| 624 | static const SkGlyph& sk_getMetrics_utf32_prev(SkGlyphCache* cache, |
| 625 | const char** text) { |
| 626 | SkASSERT(cache != NULL); |
| 627 | SkASSERT(text != NULL); |
| 628 | |
| 629 | const int32_t* ptr = *(const int32_t**)text; |
| 630 | SkUnichar uni = *--ptr; |
| 631 | *text = (const char*)ptr; |
| 632 | return cache->getUnicharMetrics(uni); |
| 633 | } |
| 634 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 635 | static const SkGlyph& sk_getMetrics_glyph_next(SkGlyphCache* cache, |
| 636 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 637 | SkASSERT(cache != NULL); |
| 638 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 639 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 640 | const uint16_t* ptr = *(const uint16_t**)text; |
| 641 | unsigned glyphID = *ptr; |
| 642 | ptr += 1; |
| 643 | *text = (const char*)ptr; |
| 644 | return cache->getGlyphIDMetrics(glyphID); |
| 645 | } |
| 646 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 647 | static const SkGlyph& sk_getMetrics_glyph_prev(SkGlyphCache* cache, |
| 648 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 649 | SkASSERT(cache != NULL); |
| 650 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 651 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 652 | const uint16_t* ptr = *(const uint16_t**)text; |
| 653 | ptr -= 1; |
| 654 | unsigned glyphID = *ptr; |
| 655 | *text = (const char*)ptr; |
| 656 | return cache->getGlyphIDMetrics(glyphID); |
| 657 | } |
| 658 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 659 | static const SkGlyph& sk_getAdvance_utf8_next(SkGlyphCache* cache, |
| 660 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 661 | SkASSERT(cache != NULL); |
| 662 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 663 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 664 | return cache->getUnicharAdvance(SkUTF8_NextUnichar(text)); |
| 665 | } |
| 666 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 667 | static const SkGlyph& sk_getAdvance_utf8_prev(SkGlyphCache* cache, |
| 668 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 669 | SkASSERT(cache != NULL); |
| 670 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 671 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 672 | return cache->getUnicharAdvance(SkUTF8_PrevUnichar(text)); |
| 673 | } |
| 674 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 675 | static const SkGlyph& sk_getAdvance_utf16_next(SkGlyphCache* cache, |
| 676 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 677 | SkASSERT(cache != NULL); |
| 678 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 679 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 680 | return cache->getUnicharAdvance(SkUTF16_NextUnichar((const uint16_t**)text)); |
| 681 | } |
| 682 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 683 | static const SkGlyph& sk_getAdvance_utf16_prev(SkGlyphCache* cache, |
| 684 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 685 | SkASSERT(cache != NULL); |
| 686 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 687 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 688 | return cache->getUnicharAdvance(SkUTF16_PrevUnichar((const uint16_t**)text)); |
| 689 | } |
| 690 | |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 691 | static const SkGlyph& sk_getAdvance_utf32_next(SkGlyphCache* cache, |
| 692 | const char** text) { |
| 693 | SkASSERT(cache != NULL); |
| 694 | SkASSERT(text != NULL); |
| 695 | |
| 696 | const int32_t* ptr = *(const int32_t**)text; |
| 697 | SkUnichar uni = *ptr++; |
| 698 | *text = (const char*)ptr; |
| 699 | return cache->getUnicharAdvance(uni); |
| 700 | } |
| 701 | |
| 702 | static const SkGlyph& sk_getAdvance_utf32_prev(SkGlyphCache* cache, |
| 703 | const char** text) { |
| 704 | SkASSERT(cache != NULL); |
| 705 | SkASSERT(text != NULL); |
| 706 | |
| 707 | const int32_t* ptr = *(const int32_t**)text; |
| 708 | SkUnichar uni = *--ptr; |
| 709 | *text = (const char*)ptr; |
| 710 | return cache->getUnicharAdvance(uni); |
| 711 | } |
| 712 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 713 | static const SkGlyph& sk_getAdvance_glyph_next(SkGlyphCache* cache, |
| 714 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 715 | SkASSERT(cache != NULL); |
| 716 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 717 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 718 | const uint16_t* ptr = *(const uint16_t**)text; |
| 719 | unsigned glyphID = *ptr; |
| 720 | ptr += 1; |
| 721 | *text = (const char*)ptr; |
| 722 | return cache->getGlyphIDAdvance(glyphID); |
| 723 | } |
| 724 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 725 | static const SkGlyph& sk_getAdvance_glyph_prev(SkGlyphCache* cache, |
| 726 | const char** text) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 727 | SkASSERT(cache != NULL); |
| 728 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 729 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 730 | const uint16_t* ptr = *(const uint16_t**)text; |
| 731 | ptr -= 1; |
| 732 | unsigned glyphID = *ptr; |
| 733 | *text = (const char*)ptr; |
| 734 | return cache->getGlyphIDAdvance(glyphID); |
| 735 | } |
| 736 | |
| 737 | SkMeasureCacheProc SkPaint::getMeasureCacheProc(TextBufferDirection tbd, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 738 | bool needFullMetrics) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 739 | static const SkMeasureCacheProc gMeasureCacheProcs[] = { |
| 740 | sk_getMetrics_utf8_next, |
| 741 | sk_getMetrics_utf16_next, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 742 | sk_getMetrics_utf32_next, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 743 | sk_getMetrics_glyph_next, |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 744 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 745 | sk_getMetrics_utf8_prev, |
| 746 | sk_getMetrics_utf16_prev, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 747 | sk_getMetrics_utf32_prev, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 748 | sk_getMetrics_glyph_prev, |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 749 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 750 | sk_getAdvance_utf8_next, |
| 751 | sk_getAdvance_utf16_next, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 752 | sk_getAdvance_utf32_next, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 753 | sk_getAdvance_glyph_next, |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 754 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 755 | sk_getAdvance_utf8_prev, |
| 756 | sk_getAdvance_utf16_prev, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 757 | sk_getAdvance_utf32_prev, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 758 | sk_getAdvance_glyph_prev |
| 759 | }; |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 760 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 761 | unsigned index = this->getTextEncoding(); |
| 762 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 763 | if (kBackward_TextBufferDirection == tbd) { |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 764 | index += 4; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 765 | } |
| 766 | if (!needFullMetrics && !this->isDevKernText()) { |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 767 | index += 8; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 768 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 769 | |
| 770 | SkASSERT(index < SK_ARRAY_COUNT(gMeasureCacheProcs)); |
| 771 | return gMeasureCacheProcs[index]; |
| 772 | } |
| 773 | |
| 774 | /////////////////////////////////////////////////////////////////////////////// |
| 775 | |
| 776 | static const SkGlyph& sk_getMetrics_utf8_00(SkGlyphCache* cache, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 777 | const char** text, SkFixed, SkFixed) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 778 | SkASSERT(cache != NULL); |
| 779 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 780 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 781 | return cache->getUnicharMetrics(SkUTF8_NextUnichar(text)); |
| 782 | } |
| 783 | |
| 784 | static const SkGlyph& sk_getMetrics_utf8_xy(SkGlyphCache* cache, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 785 | const char** text, SkFixed x, SkFixed y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 786 | SkASSERT(cache != NULL); |
| 787 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 788 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 789 | return cache->getUnicharMetrics(SkUTF8_NextUnichar(text), x, y); |
| 790 | } |
| 791 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 792 | static const SkGlyph& sk_getMetrics_utf16_00(SkGlyphCache* cache, |
| 793 | const char** text, SkFixed, SkFixed) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 794 | SkASSERT(cache != NULL); |
| 795 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 796 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 797 | return cache->getUnicharMetrics(SkUTF16_NextUnichar((const uint16_t**)text)); |
| 798 | } |
| 799 | |
| 800 | static const SkGlyph& sk_getMetrics_utf16_xy(SkGlyphCache* cache, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 801 | const char** text, SkFixed x, SkFixed y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 802 | SkASSERT(cache != NULL); |
| 803 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 804 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 805 | return cache->getUnicharMetrics(SkUTF16_NextUnichar((const uint16_t**)text), |
| 806 | x, y); |
| 807 | } |
| 808 | |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 809 | static const SkGlyph& sk_getMetrics_utf32_00(SkGlyphCache* cache, |
| 810 | const char** text, SkFixed, SkFixed) { |
| 811 | SkASSERT(cache != NULL); |
| 812 | SkASSERT(text != NULL); |
| 813 | |
| 814 | const int32_t* ptr = *(const int32_t**)text; |
| 815 | SkUnichar uni = *ptr++; |
| 816 | *text = (const char*)ptr; |
| 817 | return cache->getUnicharMetrics(uni); |
| 818 | } |
| 819 | |
| 820 | static const SkGlyph& sk_getMetrics_utf32_xy(SkGlyphCache* cache, |
| 821 | const char** text, SkFixed x, SkFixed y) { |
| 822 | SkASSERT(cache != NULL); |
| 823 | SkASSERT(text != NULL); |
| 824 | |
| 825 | const int32_t* ptr = *(const int32_t**)text; |
| 826 | SkUnichar uni = *--ptr; |
| 827 | *text = (const char*)ptr; |
| 828 | return cache->getUnicharMetrics(uni); |
| 829 | } |
| 830 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 831 | static const SkGlyph& sk_getMetrics_glyph_00(SkGlyphCache* cache, |
| 832 | const char** text, SkFixed, SkFixed) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 833 | SkASSERT(cache != NULL); |
| 834 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 835 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 836 | const uint16_t* ptr = *(const uint16_t**)text; |
| 837 | unsigned glyphID = *ptr; |
| 838 | ptr += 1; |
| 839 | *text = (const char*)ptr; |
| 840 | return cache->getGlyphIDMetrics(glyphID); |
| 841 | } |
| 842 | |
| 843 | static const SkGlyph& sk_getMetrics_glyph_xy(SkGlyphCache* cache, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 844 | const char** text, SkFixed x, SkFixed y) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 845 | SkASSERT(cache != NULL); |
| 846 | SkASSERT(text != NULL); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 847 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 848 | const uint16_t* ptr = *(const uint16_t**)text; |
| 849 | unsigned glyphID = *ptr; |
| 850 | ptr += 1; |
| 851 | *text = (const char*)ptr; |
| 852 | return cache->getGlyphIDMetrics(glyphID, x, y); |
| 853 | } |
| 854 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 855 | SkDrawCacheProc SkPaint::getDrawCacheProc() const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 856 | static const SkDrawCacheProc gDrawCacheProcs[] = { |
| 857 | sk_getMetrics_utf8_00, |
| 858 | sk_getMetrics_utf16_00, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 859 | sk_getMetrics_utf32_00, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 860 | sk_getMetrics_glyph_00, |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 861 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 862 | sk_getMetrics_utf8_xy, |
| 863 | sk_getMetrics_utf16_xy, |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 864 | sk_getMetrics_utf32_xy, |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 865 | sk_getMetrics_glyph_xy |
| 866 | }; |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 867 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 868 | unsigned index = this->getTextEncoding(); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 869 | if (fFlags & kSubpixelText_Flag) { |
reed@google.com | 68bc6f7 | 2012-03-14 19:41:55 +0000 | [diff] [blame] | 870 | index += 4; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 871 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 872 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 873 | SkASSERT(index < SK_ARRAY_COUNT(gDrawCacheProcs)); |
| 874 | return gDrawCacheProcs[index]; |
| 875 | } |
| 876 | |
| 877 | /////////////////////////////////////////////////////////////////////////////// |
| 878 | |
| 879 | class SkAutoRestorePaintTextSizeAndFrame { |
| 880 | public: |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 881 | SkAutoRestorePaintTextSizeAndFrame(const SkPaint* paint) |
| 882 | : fPaint((SkPaint*)paint) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 883 | fTextSize = paint->getTextSize(); |
| 884 | fStyle = paint->getStyle(); |
| 885 | fPaint->setStyle(SkPaint::kFill_Style); |
| 886 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 887 | |
| 888 | ~SkAutoRestorePaintTextSizeAndFrame() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 889 | fPaint->setStyle(fStyle); |
| 890 | fPaint->setTextSize(fTextSize); |
| 891 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 892 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 893 | private: |
| 894 | SkPaint* fPaint; |
| 895 | SkScalar fTextSize; |
| 896 | SkPaint::Style fStyle; |
| 897 | }; |
| 898 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 899 | static void set_bounds(const SkGlyph& g, SkRect* bounds) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 900 | bounds->set(SkIntToScalar(g.fLeft), |
| 901 | SkIntToScalar(g.fTop), |
| 902 | SkIntToScalar(g.fLeft + g.fWidth), |
| 903 | SkIntToScalar(g.fTop + g.fHeight)); |
| 904 | } |
| 905 | |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 906 | // 64bits wide, with a 16bit bias. Useful when accumulating lots of 16.16 so |
| 907 | // we don't overflow along the way |
| 908 | typedef int64_t Sk48Dot16; |
| 909 | |
| 910 | #ifdef SK_SCALAR_IS_FLOAT |
| 911 | static inline float Sk48Dot16ToScalar(Sk48Dot16 x) { |
reed@android.com | e89d3ec | 2010-05-18 21:23:30 +0000 | [diff] [blame] | 912 | return (float) (x * 1.5258789e-5); // x * (1 / 65536.0f) |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 913 | } |
| 914 | #else |
| 915 | static inline SkFixed Sk48Dot16ToScalar(Sk48Dot16 x) { |
| 916 | // just return the low 32bits |
| 917 | return static_cast<SkFixed>(x); |
| 918 | } |
| 919 | #endif |
| 920 | |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 921 | static void join_bounds_x(const SkGlyph& g, SkRect* bounds, Sk48Dot16 dx) { |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 922 | SkScalar sx = Sk48Dot16ToScalar(dx); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 923 | bounds->join(SkIntToScalar(g.fLeft) + sx, |
| 924 | SkIntToScalar(g.fTop), |
| 925 | SkIntToScalar(g.fLeft + g.fWidth) + sx, |
| 926 | SkIntToScalar(g.fTop + g.fHeight)); |
| 927 | } |
| 928 | |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 929 | static void join_bounds_y(const SkGlyph& g, SkRect* bounds, Sk48Dot16 dy) { |
| 930 | SkScalar sy = Sk48Dot16ToScalar(dy); |
| 931 | bounds->join(SkIntToScalar(g.fLeft), |
| 932 | SkIntToScalar(g.fTop) + sy, |
| 933 | SkIntToScalar(g.fLeft + g.fWidth), |
| 934 | SkIntToScalar(g.fTop + g.fHeight) + sy); |
| 935 | } |
| 936 | |
| 937 | typedef void (*JoinBoundsProc)(const SkGlyph&, SkRect*, Sk48Dot16); |
| 938 | |
| 939 | // xyIndex is 0 for fAdvanceX or 1 for fAdvanceY |
| 940 | static SkFixed advance(const SkGlyph& glyph, int xyIndex) { |
| 941 | SkASSERT(0 == xyIndex || 1 == xyIndex); |
| 942 | return (&glyph.fAdvanceX)[xyIndex]; |
| 943 | } |
| 944 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 945 | SkScalar SkPaint::measure_text(SkGlyphCache* cache, |
| 946 | const char* text, size_t byteLength, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 947 | int* count, SkRect* bounds) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 948 | SkASSERT(count); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 949 | if (byteLength == 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 950 | *count = 0; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 951 | if (bounds) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 952 | bounds->setEmpty(); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 953 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 954 | return 0; |
| 955 | } |
| 956 | |
| 957 | SkMeasureCacheProc glyphCacheProc; |
| 958 | glyphCacheProc = this->getMeasureCacheProc(kForward_TextBufferDirection, |
| 959 | NULL != bounds); |
| 960 | |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 961 | int xyIndex; |
| 962 | JoinBoundsProc joinBoundsProc; |
| 963 | if (this->isVerticalText()) { |
| 964 | xyIndex = 1; |
| 965 | joinBoundsProc = join_bounds_y; |
| 966 | } else { |
| 967 | xyIndex = 0; |
| 968 | joinBoundsProc = join_bounds_x; |
| 969 | } |
| 970 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 971 | int n = 1; |
| 972 | const char* stop = (const char*)text + byteLength; |
| 973 | const SkGlyph* g = &glyphCacheProc(cache, &text); |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 974 | // our accumulated fixed-point advances might overflow 16.16, so we use |
| 975 | // a 48.16 (64bit) accumulator, and then convert that to scalar at the |
| 976 | // very end. |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 977 | Sk48Dot16 x = advance(*g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 978 | |
| 979 | SkAutoKern autokern; |
| 980 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 981 | if (NULL == bounds) { |
| 982 | if (this->isDevKernText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 983 | int rsb; |
| 984 | for (; text < stop; n++) { |
| 985 | rsb = g->fRsbDelta; |
| 986 | g = &glyphCacheProc(cache, &text); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 987 | x += SkAutoKern_AdjustF(rsb, g->fLsbDelta) + advance(*g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 988 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 989 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 990 | for (; text < stop; n++) { |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 991 | x += advance(glyphCacheProc(cache, &text), xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 992 | } |
| 993 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 994 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 995 | set_bounds(*g, bounds); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 996 | if (this->isDevKernText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 997 | int rsb; |
| 998 | for (; text < stop; n++) { |
| 999 | rsb = g->fRsbDelta; |
| 1000 | g = &glyphCacheProc(cache, &text); |
| 1001 | x += SkAutoKern_AdjustF(rsb, g->fLsbDelta); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1002 | joinBoundsProc(*g, bounds, x); |
| 1003 | x += advance(*g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1004 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1005 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1006 | for (; text < stop; n++) { |
| 1007 | g = &glyphCacheProc(cache, &text); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1008 | joinBoundsProc(*g, bounds, x); |
| 1009 | x += advance(*g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1010 | } |
| 1011 | } |
| 1012 | } |
| 1013 | SkASSERT(text == stop); |
| 1014 | |
| 1015 | *count = n; |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 1016 | return Sk48Dot16ToScalar(x); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
| 1019 | SkScalar SkPaint::measureText(const void* textData, size_t length, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1020 | SkRect* bounds, SkScalar zoom) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1021 | const char* text = (const char*)textData; |
| 1022 | SkASSERT(text != NULL || length == 0); |
| 1023 | |
| 1024 | SkScalar scale = 0; |
| 1025 | SkAutoRestorePaintTextSizeAndFrame restore(this); |
| 1026 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1027 | if (this->isLinearText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1028 | scale = fTextSize / kCanonicalTextSizeForPaths; |
| 1029 | // this gets restored by restore |
| 1030 | ((SkPaint*)this)->setTextSize(SkIntToScalar(kCanonicalTextSizeForPaths)); |
| 1031 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1032 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1033 | SkMatrix zoomMatrix, *zoomPtr = NULL; |
| 1034 | if (zoom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1035 | zoomMatrix.setScale(zoom, zoom); |
| 1036 | zoomPtr = &zoomMatrix; |
| 1037 | } |
| 1038 | |
| 1039 | SkAutoGlyphCache autoCache(*this, zoomPtr); |
| 1040 | SkGlyphCache* cache = autoCache.getCache(); |
| 1041 | |
| 1042 | SkScalar width = 0; |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1043 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1044 | if (length > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1045 | int tempCount; |
| 1046 | |
| 1047 | width = this->measure_text(cache, text, length, &tempCount, bounds); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1048 | if (scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1049 | width = SkScalarMul(width, scale); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1050 | if (bounds) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1051 | bounds->fLeft = SkScalarMul(bounds->fLeft, scale); |
| 1052 | bounds->fTop = SkScalarMul(bounds->fTop, scale); |
| 1053 | bounds->fRight = SkScalarMul(bounds->fRight, scale); |
| 1054 | bounds->fBottom = SkScalarMul(bounds->fBottom, scale); |
| 1055 | } |
| 1056 | } |
| 1057 | } |
| 1058 | return width; |
| 1059 | } |
| 1060 | |
| 1061 | typedef bool (*SkTextBufferPred)(const char* text, const char* stop); |
| 1062 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1063 | static bool forward_textBufferPred(const char* text, const char* stop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1064 | return text < stop; |
| 1065 | } |
| 1066 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1067 | static bool backward_textBufferPred(const char* text, const char* stop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1068 | return text > stop; |
| 1069 | } |
| 1070 | |
| 1071 | static SkTextBufferPred chooseTextBufferPred(SkPaint::TextBufferDirection tbd, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1072 | const char** text, size_t length, |
| 1073 | const char** stop) { |
| 1074 | if (SkPaint::kForward_TextBufferDirection == tbd) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1075 | *stop = *text + length; |
| 1076 | return forward_textBufferPred; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1077 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1078 | // text should point to the end of the buffer, and stop to the beginning |
| 1079 | *stop = *text; |
| 1080 | *text += length; |
| 1081 | return backward_textBufferPred; |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | size_t SkPaint::breakText(const void* textD, size_t length, SkScalar maxWidth, |
| 1086 | SkScalar* measuredWidth, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1087 | TextBufferDirection tbd) const { |
| 1088 | if (0 == length || 0 >= maxWidth) { |
| 1089 | if (measuredWidth) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1090 | *measuredWidth = 0; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1091 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1092 | return 0; |
| 1093 | } |
| 1094 | |
djsollen@google.com | c6f2e7d | 2012-01-04 18:43:43 +0000 | [diff] [blame] | 1095 | if (0 == fTextSize) { |
| 1096 | if (measuredWidth) { |
| 1097 | *measuredWidth = 0; |
| 1098 | } |
| 1099 | return length; |
| 1100 | } |
| 1101 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1102 | SkASSERT(textD != NULL); |
| 1103 | const char* text = (const char*)textD; |
| 1104 | |
| 1105 | SkScalar scale = 0; |
| 1106 | SkAutoRestorePaintTextSizeAndFrame restore(this); |
| 1107 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1108 | if (this->isLinearText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1109 | scale = fTextSize / kCanonicalTextSizeForPaths; |
reed@android.com | 647d3da | 2010-05-17 14:15:14 +0000 | [diff] [blame] | 1110 | maxWidth = SkScalarMulDiv(maxWidth, kCanonicalTextSizeForPaths, fTextSize); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1111 | // this gets restored by restore |
| 1112 | ((SkPaint*)this)->setTextSize(SkIntToScalar(kCanonicalTextSizeForPaths)); |
| 1113 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1114 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1115 | SkAutoGlyphCache autoCache(*this, NULL); |
| 1116 | SkGlyphCache* cache = autoCache.getCache(); |
| 1117 | |
| 1118 | SkMeasureCacheProc glyphCacheProc = this->getMeasureCacheProc(tbd, false); |
| 1119 | const char* stop; |
| 1120 | SkTextBufferPred pred = chooseTextBufferPred(tbd, &text, length, &stop); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1121 | const int xyIndex = this->isVerticalText() ? 1 : 0; |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 1122 | // use 64bits for our accumulator, to avoid overflowing 16.16 |
| 1123 | Sk48Dot16 max = SkScalarToFixed(maxWidth); |
| 1124 | Sk48Dot16 width = 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1125 | |
| 1126 | SkAutoKern autokern; |
| 1127 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1128 | if (this->isDevKernText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1129 | int rsb = 0; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1130 | while (pred(text, stop)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1131 | const char* curr = text; |
| 1132 | const SkGlyph& g = glyphCacheProc(cache, &text); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1133 | SkFixed x = SkAutoKern_AdjustF(rsb, g.fLsbDelta) + advance(g, xyIndex); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1134 | if ((width += x) > max) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1135 | width -= x; |
| 1136 | text = curr; |
| 1137 | break; |
| 1138 | } |
| 1139 | rsb = g.fRsbDelta; |
| 1140 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1141 | } else { |
| 1142 | while (pred(text, stop)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1143 | const char* curr = text; |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1144 | SkFixed x = advance(glyphCacheProc(cache, &text), xyIndex); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1145 | if ((width += x) > max) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1146 | width -= x; |
| 1147 | text = curr; |
| 1148 | break; |
| 1149 | } |
| 1150 | } |
| 1151 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1152 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1153 | if (measuredWidth) { |
reed@android.com | e88f551 | 2010-03-19 14:42:28 +0000 | [diff] [blame] | 1154 | SkScalar scalarWidth = Sk48Dot16ToScalar(width); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1155 | if (scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1156 | scalarWidth = SkScalarMul(scalarWidth, scale); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1157 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1158 | *measuredWidth = scalarWidth; |
| 1159 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1160 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1161 | // return the number of bytes measured |
| 1162 | return (kForward_TextBufferDirection == tbd) ? |
| 1163 | text - stop + length : stop - text + length; |
| 1164 | } |
| 1165 | |
| 1166 | /////////////////////////////////////////////////////////////////////////////// |
| 1167 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1168 | static bool FontMetricsCacheProc(const SkGlyphCache* cache, void* context) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1169 | *(SkPaint::FontMetrics*)context = cache->getFontMetricsY(); |
| 1170 | return false; // don't detach the cache |
| 1171 | } |
| 1172 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1173 | static void FontMetricsDescProc(const SkDescriptor* desc, void* context) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1174 | SkGlyphCache::VisitCache(desc, FontMetricsCacheProc, context); |
| 1175 | } |
| 1176 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1177 | SkScalar SkPaint::getFontMetrics(FontMetrics* metrics, SkScalar zoom) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1178 | SkScalar scale = 0; |
| 1179 | SkAutoRestorePaintTextSizeAndFrame restore(this); |
| 1180 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1181 | if (this->isLinearText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1182 | scale = fTextSize / kCanonicalTextSizeForPaths; |
| 1183 | // this gets restored by restore |
| 1184 | ((SkPaint*)this)->setTextSize(SkIntToScalar(kCanonicalTextSizeForPaths)); |
| 1185 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1186 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1187 | SkMatrix zoomMatrix, *zoomPtr = NULL; |
| 1188 | if (zoom) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1189 | zoomMatrix.setScale(zoom, zoom); |
| 1190 | zoomPtr = &zoomMatrix; |
| 1191 | } |
| 1192 | |
| 1193 | #if 0 |
| 1194 | SkAutoGlyphCache autoCache(*this, zoomPtr); |
| 1195 | SkGlyphCache* cache = autoCache.getCache(); |
| 1196 | const FontMetrics& my = cache->getFontMetricsY(); |
| 1197 | #endif |
| 1198 | FontMetrics storage; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1199 | if (NULL == metrics) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1200 | metrics = &storage; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1201 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1202 | |
reed@google.com | ffe49f5 | 2011-11-22 19:42:41 +0000 | [diff] [blame] | 1203 | this->descriptorProc(zoomPtr, FontMetricsDescProc, metrics, true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1204 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1205 | if (scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1206 | metrics->fTop = SkScalarMul(metrics->fTop, scale); |
| 1207 | metrics->fAscent = SkScalarMul(metrics->fAscent, scale); |
| 1208 | metrics->fDescent = SkScalarMul(metrics->fDescent, scale); |
| 1209 | metrics->fBottom = SkScalarMul(metrics->fBottom, scale); |
| 1210 | metrics->fLeading = SkScalarMul(metrics->fLeading, scale); |
| 1211 | } |
| 1212 | return metrics->fDescent - metrics->fAscent + metrics->fLeading; |
| 1213 | } |
| 1214 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1215 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1216 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1217 | static void set_bounds(const SkGlyph& g, SkRect* bounds, SkScalar scale) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1218 | bounds->set(g.fLeft * scale, |
| 1219 | g.fTop * scale, |
| 1220 | (g.fLeft + g.fWidth) * scale, |
| 1221 | (g.fTop + g.fHeight) * scale); |
| 1222 | } |
| 1223 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1224 | int SkPaint::getTextWidths(const void* textData, size_t byteLength, |
| 1225 | SkScalar widths[], SkRect bounds[]) const { |
| 1226 | if (0 == byteLength) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1227 | return 0; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1228 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1229 | |
| 1230 | SkASSERT(NULL != textData); |
| 1231 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1232 | if (NULL == widths && NULL == bounds) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1233 | return this->countText(textData, byteLength); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1234 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1235 | |
| 1236 | SkAutoRestorePaintTextSizeAndFrame restore(this); |
| 1237 | SkScalar scale = 0; |
| 1238 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1239 | if (this->isLinearText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1240 | scale = fTextSize / kCanonicalTextSizeForPaths; |
| 1241 | // this gets restored by restore |
| 1242 | ((SkPaint*)this)->setTextSize(SkIntToScalar(kCanonicalTextSizeForPaths)); |
| 1243 | } |
| 1244 | |
| 1245 | SkAutoGlyphCache autoCache(*this, NULL); |
| 1246 | SkGlyphCache* cache = autoCache.getCache(); |
| 1247 | SkMeasureCacheProc glyphCacheProc; |
| 1248 | glyphCacheProc = this->getMeasureCacheProc(kForward_TextBufferDirection, |
| 1249 | NULL != bounds); |
| 1250 | |
| 1251 | const char* text = (const char*)textData; |
| 1252 | const char* stop = text + byteLength; |
| 1253 | int count = 0; |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1254 | const int xyIndex = this->isVerticalText() ? 1 : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1255 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1256 | if (this->isDevKernText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1257 | // we adjust the widths returned here through auto-kerning |
| 1258 | SkAutoKern autokern; |
| 1259 | SkFixed prevWidth = 0; |
| 1260 | |
| 1261 | if (scale) { |
| 1262 | while (text < stop) { |
| 1263 | const SkGlyph& g = glyphCacheProc(cache, &text); |
| 1264 | if (widths) { |
| 1265 | SkFixed adjust = autokern.adjust(g); |
| 1266 | |
| 1267 | if (count > 0) { |
| 1268 | SkScalar w = SkFixedToScalar(prevWidth + adjust); |
| 1269 | *widths++ = SkScalarMul(w, scale); |
| 1270 | } |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1271 | prevWidth = advance(g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1272 | } |
| 1273 | if (bounds) { |
| 1274 | set_bounds(g, bounds++, scale); |
| 1275 | } |
| 1276 | ++count; |
| 1277 | } |
| 1278 | if (count > 0 && widths) { |
| 1279 | *widths = SkScalarMul(SkFixedToScalar(prevWidth), scale); |
| 1280 | } |
| 1281 | } else { |
| 1282 | while (text < stop) { |
| 1283 | const SkGlyph& g = glyphCacheProc(cache, &text); |
| 1284 | if (widths) { |
| 1285 | SkFixed adjust = autokern.adjust(g); |
| 1286 | |
| 1287 | if (count > 0) { |
| 1288 | *widths++ = SkFixedToScalar(prevWidth + adjust); |
| 1289 | } |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1290 | prevWidth = advance(g, xyIndex); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1291 | } |
| 1292 | if (bounds) { |
| 1293 | set_bounds(g, bounds++); |
| 1294 | } |
| 1295 | ++count; |
| 1296 | } |
| 1297 | if (count > 0 && widths) { |
| 1298 | *widths = SkFixedToScalar(prevWidth); |
| 1299 | } |
| 1300 | } |
| 1301 | } else { // no devkern |
| 1302 | if (scale) { |
| 1303 | while (text < stop) { |
| 1304 | const SkGlyph& g = glyphCacheProc(cache, &text); |
| 1305 | if (widths) { |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1306 | *widths++ = SkScalarMul(SkFixedToScalar(advance(g, xyIndex)), |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1307 | scale); |
| 1308 | } |
| 1309 | if (bounds) { |
| 1310 | set_bounds(g, bounds++, scale); |
| 1311 | } |
| 1312 | ++count; |
| 1313 | } |
| 1314 | } else { |
| 1315 | while (text < stop) { |
| 1316 | const SkGlyph& g = glyphCacheProc(cache, &text); |
| 1317 | if (widths) { |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 1318 | *widths++ = SkFixedToScalar(advance(g, xyIndex)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1319 | } |
| 1320 | if (bounds) { |
| 1321 | set_bounds(g, bounds++); |
| 1322 | } |
| 1323 | ++count; |
| 1324 | } |
| 1325 | } |
| 1326 | } |
| 1327 | |
| 1328 | SkASSERT(text == stop); |
| 1329 | return count; |
| 1330 | } |
| 1331 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1332 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1333 | |
| 1334 | #include "SkDraw.h" |
| 1335 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1336 | void SkPaint::getTextPath(const void* textData, size_t length, |
| 1337 | SkScalar x, SkScalar y, SkPath* path) const { |
| 1338 | SkASSERT(length == 0 || textData != NULL); |
| 1339 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1340 | const char* text = (const char*)textData; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1341 | if (text == NULL || length == 0 || path == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1342 | return; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1343 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1344 | |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 1345 | SkTextToPathIter iter(text, length, *this, false); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1346 | SkMatrix matrix; |
| 1347 | SkScalar prevXPos = 0; |
| 1348 | |
| 1349 | matrix.setScale(iter.getPathScale(), iter.getPathScale()); |
| 1350 | matrix.postTranslate(x, y); |
| 1351 | path->reset(); |
| 1352 | |
| 1353 | SkScalar xpos; |
| 1354 | const SkPath* iterPath; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1355 | while ((iterPath = iter.next(&xpos)) != NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1356 | matrix.postTranslate(xpos - prevXPos, 0); |
| 1357 | path->addPath(*iterPath, matrix); |
| 1358 | prevXPos = xpos; |
| 1359 | } |
| 1360 | } |
| 1361 | |
reed@google.com | ca0062e | 2012-07-20 11:20:32 +0000 | [diff] [blame] | 1362 | void SkPaint::getPosTextPath(const void* textData, size_t length, |
| 1363 | const SkPoint pos[], SkPath* path) const { |
| 1364 | SkASSERT(length == 0 || textData != NULL); |
| 1365 | |
| 1366 | const char* text = (const char*)textData; |
| 1367 | if (text == NULL || length == 0 || path == NULL) { |
| 1368 | return; |
| 1369 | } |
| 1370 | |
| 1371 | SkTextToPathIter iter(text, length, *this, false); |
| 1372 | SkMatrix matrix; |
| 1373 | SkPoint prevPos; |
| 1374 | prevPos.set(0, 0); |
| 1375 | |
| 1376 | matrix.setScale(iter.getPathScale(), iter.getPathScale()); |
| 1377 | path->reset(); |
| 1378 | |
| 1379 | unsigned int i = 0; |
| 1380 | const SkPath* iterPath; |
| 1381 | while ((iterPath = iter.next(NULL)) != NULL) { |
| 1382 | matrix.postTranslate(pos[i].fX - prevPos.fX, pos[i].fY - prevPos.fY); |
| 1383 | path->addPath(*iterPath, matrix); |
| 1384 | prevPos = pos[i]; |
| 1385 | i++; |
| 1386 | } |
| 1387 | } |
| 1388 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1389 | static void add_flattenable(SkDescriptor* desc, uint32_t tag, |
| 1390 | SkFlattenableWriteBuffer* buffer) { |
| 1391 | buffer->flatten(desc->addEntry(tag, buffer->size(), NULL)); |
| 1392 | } |
| 1393 | |
reed@google.com | 2739b27 | 2011-09-28 17:26:42 +0000 | [diff] [blame] | 1394 | // SkFontHost can override this choice in FilterRec() |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1395 | static SkMask::Format computeMaskFormat(const SkPaint& paint) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1396 | uint32_t flags = paint.getFlags(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1397 | |
agl@chromium.org | b4234a2 | 2010-01-21 11:43:44 +0000 | [diff] [blame] | 1398 | // Antialiasing being disabled trumps all other settings. |
reed@google.com | 65dd8f8 | 2011-03-14 13:31:16 +0000 | [diff] [blame] | 1399 | if (!(flags & SkPaint::kAntiAlias_Flag)) { |
agl@chromium.org | b4234a2 | 2010-01-21 11:43:44 +0000 | [diff] [blame] | 1400 | return SkMask::kBW_Format; |
reed@google.com | f88d676 | 2011-03-10 15:06:27 +0000 | [diff] [blame] | 1401 | } |
| 1402 | |
reed@google.com | 65dd8f8 | 2011-03-14 13:31:16 +0000 | [diff] [blame] | 1403 | if (flags & SkPaint::kLCDRenderText_Flag) { |
reed@google.com | f67e4cf | 2011-03-15 20:56:58 +0000 | [diff] [blame] | 1404 | return SkMask::kLCD16_Format; |
reed@google.com | 65dd8f8 | 2011-03-14 13:31:16 +0000 | [diff] [blame] | 1405 | } |
agl@chromium.org | b4234a2 | 2010-01-21 11:43:44 +0000 | [diff] [blame] | 1406 | |
| 1407 | return SkMask::kA8_Format; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1408 | } |
| 1409 | |
reed@android.com | 1cdcb51 | 2009-08-24 19:11:00 +0000 | [diff] [blame] | 1410 | // if linear-text is on, then we force hinting to be off (since that's sort of |
| 1411 | // the point of linear-text. |
| 1412 | static SkPaint::Hinting computeHinting(const SkPaint& paint) { |
| 1413 | SkPaint::Hinting h = paint.getHinting(); |
| 1414 | if (paint.isLinearText()) { |
| 1415 | h = SkPaint::kNo_Hinting; |
| 1416 | } |
| 1417 | return h; |
| 1418 | } |
| 1419 | |
reed@google.com | 1f6b4ae | 2011-11-22 14:20:55 +0000 | [diff] [blame] | 1420 | // return true if the paint is just a single color (i.e. not a shader). If its |
| 1421 | // a shader, then we can't compute a const luminance for it :( |
| 1422 | static bool justAColor(const SkPaint& paint, SkColor* color) { |
| 1423 | if (paint.getShader()) { |
| 1424 | return false; |
| 1425 | } |
| 1426 | SkColor c = paint.getColor(); |
| 1427 | if (paint.getColorFilter()) { |
| 1428 | c = paint.getColorFilter()->filterColor(c); |
| 1429 | } |
| 1430 | if (color) { |
| 1431 | *color = c; |
| 1432 | } |
| 1433 | return true; |
| 1434 | } |
| 1435 | |
reed@google.com | ce6dbb6 | 2012-02-10 22:01:45 +0000 | [diff] [blame] | 1436 | static SkColor computeLuminanceColor(const SkPaint& paint) { |
| 1437 | SkColor c; |
| 1438 | if (!justAColor(paint, &c)) { |
| 1439 | c = SkColorSetRGB(0x7F, 0x80, 0x7F); |
| 1440 | } |
| 1441 | return c; |
| 1442 | } |
reed@google.com | 813d38b | 2012-02-13 21:37:57 +0000 | [diff] [blame] | 1443 | |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1444 | #define assert_byte(x) SkASSERT(0 == ((x) >> 8)) |
| 1445 | |
reed@google.com | 4f79b9b | 2011-09-13 13:23:26 +0000 | [diff] [blame] | 1446 | // Beyond this size, LCD doesn't appreciably improve quality, but it always |
| 1447 | // cost more RAM and draws slower, so we set a cap. |
reed@google.com | c27b741 | 2011-09-13 17:20:30 +0000 | [diff] [blame] | 1448 | #ifndef SK_MAX_SIZE_FOR_LCDTEXT |
| 1449 | #define SK_MAX_SIZE_FOR_LCDTEXT 48 |
| 1450 | #endif |
reed@google.com | 4f79b9b | 2011-09-13 13:23:26 +0000 | [diff] [blame] | 1451 | |
| 1452 | static bool tooBigForLCD(const SkScalerContext::Rec& rec) { |
| 1453 | SkScalar area = SkScalarMul(rec.fPost2x2[0][0], rec.fPost2x2[1][1]) - |
| 1454 | SkScalarMul(rec.fPost2x2[1][0], rec.fPost2x2[0][1]); |
| 1455 | SkScalar size = SkScalarMul(area, rec.fTextSize); |
reed@google.com | c27b741 | 2011-09-13 17:20:30 +0000 | [diff] [blame] | 1456 | return SkScalarAbs(size) > SkIntToScalar(SK_MAX_SIZE_FOR_LCDTEXT); |
reed@google.com | 4f79b9b | 2011-09-13 13:23:26 +0000 | [diff] [blame] | 1457 | } |
| 1458 | |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1459 | /* |
| 1460 | * Return the scalar with only limited fractional precision. Used to consolidate matrices |
| 1461 | * that vary only slightly when we create our key into the font cache, since the font scaler |
| 1462 | * typically returns the same looking resuts for tiny changes in the matrix. |
| 1463 | */ |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1464 | static SkScalar sk_relax(SkScalar x) { |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1465 | #ifdef SK_SCALAR_IS_FLOAT |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1466 | int n = sk_float_round2int(x * 1024); |
| 1467 | return n / 1024.0f; |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1468 | #else |
| 1469 | // round to the nearest 10 fractional bits |
| 1470 | return (x + (1 << 5)) & ~(1024 - 1); |
| 1471 | #endif |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1472 | } |
| 1473 | |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1474 | //#define SK_GAMMA_SRGB |
| 1475 | #ifndef SK_GAMMA_CONTRAST |
| 1476 | /** |
| 1477 | * A value of 0.5 for SK_GAMMA_CONTRAST appears to be a good compromise. |
| 1478 | * With lower values small text appears washed out (though correctly so). |
| 1479 | * With higher values lcd fringing is worse and the smoothing effect of |
| 1480 | * partial coverage is diminished. |
| 1481 | */ |
| 1482 | #define SK_GAMMA_CONTRAST (0.5f) |
| 1483 | #endif |
| 1484 | #ifndef SK_GAMMA_EXPONENT |
| 1485 | #define SK_GAMMA_EXPONENT (2.2f) |
| 1486 | #endif |
| 1487 | |
reed@android.com | 36a4c2a | 2009-07-22 19:52:11 +0000 | [diff] [blame] | 1488 | void SkScalerContext::MakeRec(const SkPaint& paint, |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1489 | const SkMatrix* deviceMatrix, Rec* rec) { |
tomhudson@google.com | 8d43018 | 2011-06-06 19:11:19 +0000 | [diff] [blame] | 1490 | SkASSERT(deviceMatrix == NULL || !deviceMatrix->hasPerspective()); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1491 | |
reed@google.com | 7d26c59 | 2011-06-13 13:01:10 +0000 | [diff] [blame] | 1492 | rec->fOrigFontID = SkTypeface::UniqueID(paint.getTypeface()); |
| 1493 | rec->fFontID = rec->fOrigFontID; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1494 | rec->fTextSize = paint.getTextSize(); |
| 1495 | rec->fPreScaleX = paint.getTextScaleX(); |
| 1496 | rec->fPreSkewX = paint.getTextSkewX(); |
| 1497 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1498 | if (deviceMatrix) { |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 1499 | rec->fPost2x2[0][0] = sk_relax(deviceMatrix->getScaleX()); |
| 1500 | rec->fPost2x2[0][1] = sk_relax(deviceMatrix->getSkewX()); |
| 1501 | rec->fPost2x2[1][0] = sk_relax(deviceMatrix->getSkewY()); |
| 1502 | rec->fPost2x2[1][1] = sk_relax(deviceMatrix->getScaleY()); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1503 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1504 | rec->fPost2x2[0][0] = rec->fPost2x2[1][1] = SK_Scalar1; |
| 1505 | rec->fPost2x2[0][1] = rec->fPost2x2[1][0] = 0; |
| 1506 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1507 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1508 | SkPaint::Style style = paint.getStyle(); |
| 1509 | SkScalar strokeWidth = paint.getStrokeWidth(); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1510 | |
reed@google.com | ffe49f5 | 2011-11-22 19:42:41 +0000 | [diff] [blame] | 1511 | unsigned flags = 0; |
senorblanco@chromium.org | 4526a84 | 2010-02-05 23:08:20 +0000 | [diff] [blame] | 1512 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1513 | if (paint.isFakeBoldText()) { |
senorblanco@chromium.org | 4526a84 | 2010-02-05 23:08:20 +0000 | [diff] [blame] | 1514 | #ifdef SK_USE_FREETYPE_EMBOLDEN |
| 1515 | flags |= SkScalerContext::kEmbolden_Flag; |
| 1516 | #else |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1517 | SkScalar fakeBoldScale = SkScalarInterpFunc(paint.getTextSize(), |
| 1518 | kStdFakeBoldInterpKeys, |
| 1519 | kStdFakeBoldInterpValues, |
| 1520 | kStdFakeBoldInterpLength); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1521 | SkScalar extra = SkScalarMul(paint.getTextSize(), fakeBoldScale); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1522 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1523 | if (style == SkPaint::kFill_Style) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1524 | style = SkPaint::kStrokeAndFill_Style; |
| 1525 | strokeWidth = extra; // ignore paint's strokeWidth if it was "fill" |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1526 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1527 | strokeWidth += extra; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1528 | } |
senorblanco@chromium.org | 4526a84 | 2010-02-05 23:08:20 +0000 | [diff] [blame] | 1529 | #endif |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1530 | } |
| 1531 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1532 | if (paint.isDevKernText()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1533 | flags |= SkScalerContext::kDevKernText_Flag; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1534 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1535 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1536 | if (style != SkPaint::kFill_Style && strokeWidth > 0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1537 | rec->fFrameWidth = strokeWidth; |
| 1538 | rec->fMiterLimit = paint.getStrokeMiter(); |
| 1539 | rec->fStrokeJoin = SkToU8(paint.getStrokeJoin()); |
| 1540 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1541 | if (style == SkPaint::kStrokeAndFill_Style) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1542 | flags |= SkScalerContext::kFrameAndFill_Flag; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1543 | } |
| 1544 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1545 | rec->fFrameWidth = 0; |
| 1546 | rec->fMiterLimit = 0; |
| 1547 | rec->fStrokeJoin = 0; |
| 1548 | } |
| 1549 | |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1550 | rec->fMaskFormat = SkToU8(computeMaskFormat(paint)); |
| 1551 | |
caryclark@google.com | 1eeaf0b | 2011-06-22 13:19:43 +0000 | [diff] [blame] | 1552 | if (SkMask::kLCD16_Format == rec->fMaskFormat || |
| 1553 | SkMask::kLCD32_Format == rec->fMaskFormat) |
| 1554 | { |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1555 | SkFontHost::LCDOrder order = SkFontHost::GetSubpixelOrder(); |
| 1556 | SkFontHost::LCDOrientation orient = SkFontHost::GetSubpixelOrientation(); |
reed@google.com | 4f79b9b | 2011-09-13 13:23:26 +0000 | [diff] [blame] | 1557 | if (SkFontHost::kNONE_LCDOrder == order || tooBigForLCD(*rec)) { |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1558 | // eeek, can't support LCD |
| 1559 | rec->fMaskFormat = SkMask::kA8_Format; |
| 1560 | } else { |
| 1561 | if (SkFontHost::kVertical_LCDOrientation == orient) { |
| 1562 | flags |= SkScalerContext::kLCD_Vertical_Flag; |
| 1563 | } |
| 1564 | if (SkFontHost::kBGR_LCDOrder == order) { |
| 1565 | flags |= SkScalerContext::kLCD_BGROrder_Flag; |
| 1566 | } |
| 1567 | } |
| 1568 | } |
| 1569 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1570 | if (paint.isEmbeddedBitmapText()) { |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1571 | flags |= SkScalerContext::kEmbeddedBitmapText_Flag; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1572 | } |
| 1573 | if (paint.isSubpixelText()) { |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1574 | flags |= SkScalerContext::kSubpixelPositioning_Flag; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1575 | } |
| 1576 | if (paint.isAutohinted()) { |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1577 | flags |= SkScalerContext::kAutohinting_Flag; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1578 | } |
reed@google.com | 830a23e | 2011-11-10 15:20:49 +0000 | [diff] [blame] | 1579 | if (paint.isVerticalText()) { |
| 1580 | flags |= SkScalerContext::kVertical_Flag; |
| 1581 | } |
reed@google.com | 8351aab | 2012-01-18 17:06:35 +0000 | [diff] [blame] | 1582 | if (paint.getFlags() & SkPaint::kGenA8FromLCD_Flag) { |
| 1583 | flags |= SkScalerContext::kGenA8FromLCD_Flag; |
| 1584 | } |
reed@google.com | 02b5331 | 2011-05-18 19:00:53 +0000 | [diff] [blame] | 1585 | rec->fFlags = SkToU16(flags); |
reed@android.com | 36a4c2a | 2009-07-22 19:52:11 +0000 | [diff] [blame] | 1586 | |
reed@google.com | ffe49f5 | 2011-11-22 19:42:41 +0000 | [diff] [blame] | 1587 | // these modify fFlags, so do them after assigning fFlags |
reed@google.com | 9d75767 | 2011-05-18 21:14:39 +0000 | [diff] [blame] | 1588 | rec->setHinting(computeHinting(paint)); |
| 1589 | |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1590 | rec->setLuminanceColor(computeLuminanceColor(paint)); |
| 1591 | #ifdef SK_GAMMA_SRGB |
| 1592 | rec->setDeviceGamma(0); |
| 1593 | rec->setPaintGamma(0); |
| 1594 | #else |
| 1595 | rec->setDeviceGamma(SkFloatToScalar(SK_GAMMA_EXPONENT)); |
| 1596 | rec->setPaintGamma(SkFloatToScalar(SK_GAMMA_EXPONENT)); |
| 1597 | #endif |
| 1598 | rec->setContrast(SkFloatToScalar(SK_GAMMA_CONTRAST)); |
| 1599 | |
reed@android.com | 36a4c2a | 2009-07-22 19:52:11 +0000 | [diff] [blame] | 1600 | /* Allow the fonthost to modify our rec before we use it as a key into the |
| 1601 | cache. This way if we're asking for something that they will ignore, |
| 1602 | they can modify our rec up front, so we don't create duplicate cache |
| 1603 | entries. |
| 1604 | */ |
| 1605 | SkFontHost::FilterRec(rec); |
reed@google.com | 3e8ae5b | 2011-09-28 15:32:20 +0000 | [diff] [blame] | 1606 | |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1607 | // be sure to call PostMakeRec(rec) before you actually use it! |
| 1608 | } |
| 1609 | |
| 1610 | /** |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1611 | * In order to call cachedDeviceLuminance, cachedPaintLuminance, or |
| 1612 | * cachedMaskGamma the caller must hold the gMaskGammaCacheMutex and continue |
| 1613 | * to hold it until the returned pointer is refed or forgotten. |
| 1614 | */ |
| 1615 | SK_DECLARE_STATIC_MUTEX(gMaskGammaCacheMutex); |
| 1616 | |
| 1617 | /** |
| 1618 | * The caller must hold the gMaskGammaCacheMutex and continue to hold it until |
| 1619 | * the returned SkColorSpaceLuminance pointer is refed or forgotten. |
| 1620 | */ |
| 1621 | static SkColorSpaceLuminance* cachedDeviceLuminance(SkScalar gammaExponent) { |
| 1622 | static SkColorSpaceLuminance* gDeviceLuminance = NULL; |
| 1623 | static SkScalar gGammaExponent = SK_ScalarMin; |
| 1624 | if (gGammaExponent != gammaExponent) { |
| 1625 | if (0 == gammaExponent) { |
| 1626 | gDeviceLuminance = SkNEW(SkSRGBLuminance); |
| 1627 | } else { |
| 1628 | gDeviceLuminance = SkNEW_ARGS(SkGammaLuminance, (gammaExponent)); |
| 1629 | } |
| 1630 | gGammaExponent = gammaExponent; |
| 1631 | } |
| 1632 | return gDeviceLuminance; |
| 1633 | } |
| 1634 | |
| 1635 | /** |
| 1636 | * The caller must hold the gMaskGammaCacheMutex and continue to hold it until |
| 1637 | * the returned SkColorSpaceLuminance pointer is refed or forgotten. |
| 1638 | */ |
| 1639 | static SkColorSpaceLuminance* cachedPaintLuminance(SkScalar gammaExponent) { |
| 1640 | static SkColorSpaceLuminance* gPaintLuminance = NULL; |
| 1641 | static SkScalar gGammaExponent = SK_ScalarMin; |
| 1642 | if (gGammaExponent != gammaExponent) { |
| 1643 | if (0 == gammaExponent) { |
| 1644 | gPaintLuminance = SkNEW(SkSRGBLuminance); |
| 1645 | } else { |
| 1646 | gPaintLuminance = SkNEW_ARGS(SkGammaLuminance, (gammaExponent)); |
| 1647 | } |
| 1648 | gGammaExponent = gammaExponent; |
| 1649 | } |
| 1650 | return gPaintLuminance; |
| 1651 | } |
| 1652 | |
| 1653 | /** |
| 1654 | * The caller must hold the gMaskGammaCacheMutex and continue to hold it until |
| 1655 | * the returned SkMaskGamma pointer is refed or forgotten. |
| 1656 | */ |
| 1657 | static SkMaskGamma* cachedMaskGamma(SkScalar contrast, SkScalar paintGamma, SkScalar deviceGamma) { |
| 1658 | static SkMaskGamma* gMaskGamma = NULL; |
| 1659 | static SkScalar gContrast = SK_ScalarMin; |
| 1660 | static SkScalar gPaintGamma = SK_ScalarMin; |
| 1661 | static SkScalar gDeviceGamma = SK_ScalarMin; |
| 1662 | if (gContrast != contrast || gPaintGamma != paintGamma || gDeviceGamma != deviceGamma) { |
| 1663 | SkSafeUnref(gMaskGamma); |
| 1664 | SkColorSpaceLuminance* paintLuminance = cachedPaintLuminance(paintGamma); |
| 1665 | SkColorSpaceLuminance* deviceLuminance = cachedDeviceLuminance(deviceGamma); |
| 1666 | gMaskGamma = SkNEW_ARGS(SkMaskGamma, (contrast, *paintLuminance, *deviceLuminance)); |
| 1667 | gContrast = contrast; |
| 1668 | gPaintGamma = paintGamma; |
| 1669 | gDeviceGamma = deviceGamma; |
| 1670 | } |
| 1671 | return gMaskGamma; |
| 1672 | } |
| 1673 | |
| 1674 | /** |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1675 | * We ensure that the rec is self-consistent and efficient (where possible) |
| 1676 | */ |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1677 | void SkScalerContext::PostMakeRec(const SkPaint& paint, SkScalerContext::Rec* rec) { |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1678 | /** |
| 1679 | * If we're asking for A8, we force the colorlum to be gray, since that |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1680 | * limits the number of unique entries, and the scaler will only look at |
| 1681 | * the lum of one of them. |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1682 | */ |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1683 | switch (rec->fMaskFormat) { |
| 1684 | case SkMask::kLCD16_Format: |
| 1685 | case SkMask::kLCD32_Format: { |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1686 | // filter down the luminance color to a finite number of bits |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1687 | SkColor color = rec->getLuminanceColor(); |
| 1688 | SkAutoMutexAcquire ama(gMaskGammaCacheMutex); |
| 1689 | SkMaskGamma* maskGamma = cachedMaskGamma(rec->getContrast(), |
| 1690 | rec->getPaintGamma(), |
| 1691 | rec->getDeviceGamma()); |
| 1692 | rec->setLuminanceColor(maskGamma->cannonicalColor(color)); |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1693 | break; |
| 1694 | } |
| 1695 | case SkMask::kA8_Format: { |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1696 | // filter down the luminance to a single component, since A8 can't |
| 1697 | // use per-component information |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1698 | |
| 1699 | SkColor color = rec->getLuminanceColor(); |
| 1700 | SkAutoMutexAcquire ama(gMaskGammaCacheMutex); |
| 1701 | U8CPU lum = cachedPaintLuminance(rec->getPaintGamma())->computeLuminance(color); |
| 1702 | // HACK: Prevents green from being pre-blended as white. |
| 1703 | lum -= ((255 - lum) * lum) / 255; |
| 1704 | |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1705 | // reduce to our finite number of bits |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1706 | SkMaskGamma* maskGamma = cachedMaskGamma(rec->getContrast(), |
| 1707 | rec->getPaintGamma(), |
| 1708 | rec->getDeviceGamma()); |
| 1709 | color = SkColorSetRGB(lum, lum, lum); |
| 1710 | rec->setLuminanceColor(maskGamma->cannonicalColor(color)); |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1711 | break; |
| 1712 | } |
| 1713 | case SkMask::kBW_Format: |
| 1714 | // No need to differentiate gamma if we're BW |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1715 | rec->setLuminanceColor(0); |
reed@google.com | dd43df9 | 2012-02-15 14:50:29 +0000 | [diff] [blame] | 1716 | break; |
reed@google.com | 3e8ae5b | 2011-09-28 15:32:20 +0000 | [diff] [blame] | 1717 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1718 | } |
| 1719 | |
| 1720 | #define MIN_SIZE_FOR_EFFECT_BUFFER 1024 |
| 1721 | |
reed@google.com | 17fb387 | 2011-05-04 14:31:07 +0000 | [diff] [blame] | 1722 | #ifdef SK_DEBUG |
| 1723 | #define TEST_DESC |
| 1724 | #endif |
| 1725 | |
reed@google.com | ffe49f5 | 2011-11-22 19:42:41 +0000 | [diff] [blame] | 1726 | /* |
| 1727 | * ignoreGamma tells us that the caller just wants metrics that are unaffected |
| 1728 | * by gamma correction, so we jam the luminance field to 0 (most common value |
| 1729 | * for black text) in hopes that we get a cache hit easier. A better solution |
| 1730 | * would be for the fontcache lookup to know to ignore the luminance field |
| 1731 | * entirely, but not sure how to do that and keep it fast. |
| 1732 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1733 | void SkPaint::descriptorProc(const SkMatrix* deviceMatrix, |
| 1734 | void (*proc)(const SkDescriptor*, void*), |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 1735 | void* context, bool ignoreGamma) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1736 | SkScalerContext::Rec rec; |
| 1737 | |
| 1738 | SkScalerContext::MakeRec(*this, deviceMatrix, &rec); |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 1739 | if (ignoreGamma) { |
reed@google.com | ce6dbb6 | 2012-02-10 22:01:45 +0000 | [diff] [blame] | 1740 | rec.setLuminanceColor(0); |
djsollen@google.com | 57f4969 | 2011-02-23 20:46:31 +0000 | [diff] [blame] | 1741 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1742 | |
| 1743 | size_t descSize = sizeof(rec); |
| 1744 | int entryCount = 1; |
| 1745 | SkPathEffect* pe = this->getPathEffect(); |
| 1746 | SkMaskFilter* mf = this->getMaskFilter(); |
| 1747 | SkRasterizer* ra = this->getRasterizer(); |
| 1748 | |
djsollen@google.com | 2b2ede3 | 2012-04-12 13:24:04 +0000 | [diff] [blame] | 1749 | SkOrderedWriteBuffer peBuffer(MIN_SIZE_FOR_EFFECT_BUFFER); |
| 1750 | SkOrderedWriteBuffer mfBuffer(MIN_SIZE_FOR_EFFECT_BUFFER); |
| 1751 | SkOrderedWriteBuffer raBuffer(MIN_SIZE_FOR_EFFECT_BUFFER); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1752 | |
| 1753 | if (pe) { |
| 1754 | peBuffer.writeFlattenable(pe); |
| 1755 | descSize += peBuffer.size(); |
| 1756 | entryCount += 1; |
| 1757 | rec.fMaskFormat = SkMask::kA8_Format; // force antialiasing when we do the scan conversion |
| 1758 | // seems like we could support kLCD as well at this point... |
| 1759 | } |
| 1760 | if (mf) { |
| 1761 | mfBuffer.writeFlattenable(mf); |
| 1762 | descSize += mfBuffer.size(); |
| 1763 | entryCount += 1; |
| 1764 | rec.fMaskFormat = SkMask::kA8_Format; // force antialiasing with maskfilters |
| 1765 | } |
| 1766 | if (ra) { |
| 1767 | raBuffer.writeFlattenable(ra); |
| 1768 | descSize += raBuffer.size(); |
| 1769 | entryCount += 1; |
| 1770 | rec.fMaskFormat = SkMask::kA8_Format; // force antialiasing when we do the scan conversion |
| 1771 | } |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1772 | |
| 1773 | /////////////////////////////////////////////////////////////////////////// |
| 1774 | // Now that we're done tweaking the rec, call the PostMakeRec cleanup |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1775 | SkScalerContext::PostMakeRec(*this, &rec); |
reed@google.com | 10d2d4d | 2012-03-01 22:32:51 +0000 | [diff] [blame] | 1776 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1777 | descSize += SkDescriptor::ComputeOverhead(entryCount); |
| 1778 | |
| 1779 | SkAutoDescriptor ad(descSize); |
| 1780 | SkDescriptor* desc = ad.getDesc(); |
| 1781 | |
| 1782 | desc->init(); |
| 1783 | desc->addEntry(kRec_SkDescriptorTag, sizeof(rec), &rec); |
| 1784 | |
| 1785 | if (pe) { |
| 1786 | add_flattenable(desc, kPathEffect_SkDescriptorTag, &peBuffer); |
| 1787 | } |
| 1788 | if (mf) { |
| 1789 | add_flattenable(desc, kMaskFilter_SkDescriptorTag, &mfBuffer); |
| 1790 | } |
| 1791 | if (ra) { |
| 1792 | add_flattenable(desc, kRasterizer_SkDescriptorTag, &raBuffer); |
| 1793 | } |
| 1794 | |
| 1795 | SkASSERT(descSize == desc->getLength()); |
| 1796 | desc->computeChecksum(); |
| 1797 | |
reed@google.com | 17fb387 | 2011-05-04 14:31:07 +0000 | [diff] [blame] | 1798 | #ifdef TEST_DESC |
| 1799 | { |
| 1800 | // Check that we completely write the bytes in desc (our key), and that |
| 1801 | // there are no uninitialized bytes. If there were, then we would get |
| 1802 | // false-misses (or worse, false-hits) in our fontcache. |
| 1803 | // |
| 1804 | // We do this buy filling 2 others, one with 0s and the other with 1s |
| 1805 | // and create those, and then check that all 3 are identical. |
| 1806 | SkAutoDescriptor ad1(descSize); |
| 1807 | SkAutoDescriptor ad2(descSize); |
| 1808 | SkDescriptor* desc1 = ad1.getDesc(); |
| 1809 | SkDescriptor* desc2 = ad2.getDesc(); |
| 1810 | |
| 1811 | memset(desc1, 0x00, descSize); |
| 1812 | memset(desc2, 0xFF, descSize); |
| 1813 | |
| 1814 | desc1->init(); |
| 1815 | desc2->init(); |
| 1816 | desc1->addEntry(kRec_SkDescriptorTag, sizeof(rec), &rec); |
| 1817 | desc2->addEntry(kRec_SkDescriptorTag, sizeof(rec), &rec); |
| 1818 | |
| 1819 | if (pe) { |
| 1820 | add_flattenable(desc1, kPathEffect_SkDescriptorTag, &peBuffer); |
| 1821 | add_flattenable(desc2, kPathEffect_SkDescriptorTag, &peBuffer); |
| 1822 | } |
| 1823 | if (mf) { |
| 1824 | add_flattenable(desc1, kMaskFilter_SkDescriptorTag, &mfBuffer); |
| 1825 | add_flattenable(desc2, kMaskFilter_SkDescriptorTag, &mfBuffer); |
| 1826 | } |
| 1827 | if (ra) { |
| 1828 | add_flattenable(desc1, kRasterizer_SkDescriptorTag, &raBuffer); |
| 1829 | add_flattenable(desc2, kRasterizer_SkDescriptorTag, &raBuffer); |
| 1830 | } |
| 1831 | |
| 1832 | SkASSERT(descSize == desc1->getLength()); |
| 1833 | SkASSERT(descSize == desc2->getLength()); |
| 1834 | desc1->computeChecksum(); |
| 1835 | desc2->computeChecksum(); |
| 1836 | SkASSERT(!memcmp(desc, desc1, descSize)); |
| 1837 | SkASSERT(!memcmp(desc, desc2, descSize)); |
| 1838 | } |
| 1839 | #endif |
| 1840 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1841 | proc(desc, context); |
| 1842 | } |
| 1843 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 1844 | SkGlyphCache* SkPaint::detachCache(const SkMatrix* deviceMatrix) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1845 | SkGlyphCache* cache; |
| 1846 | this->descriptorProc(deviceMatrix, DetachDescProc, &cache); |
| 1847 | return cache; |
| 1848 | } |
| 1849 | |
bungeman@google.com | 97efada | 2012-07-30 20:40:50 +0000 | [diff] [blame^] | 1850 | /** |
| 1851 | * Expands fDeviceGamma, fPaintGamma, fContrast, and fLumBits into a mask pre-blend. |
| 1852 | */ |
| 1853 | //static |
| 1854 | SkMaskGamma::PreBlend SkScalerContext::GetMaskPreBlend(const SkScalerContext::Rec& rec) { |
| 1855 | SkAutoMutexAcquire ama(gMaskGammaCacheMutex); |
| 1856 | SkMaskGamma* maskGamma = cachedMaskGamma(rec.getContrast(), |
| 1857 | rec.getPaintGamma(), |
| 1858 | rec.getDeviceGamma()); |
| 1859 | return maskGamma->preBlend(rec.getLuminanceColor()); |
| 1860 | } |
| 1861 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1862 | /////////////////////////////////////////////////////////////////////////////// |
| 1863 | |
| 1864 | #include "SkStream.h" |
| 1865 | |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1866 | static uintptr_t asint(const void* p) { |
| 1867 | return reinterpret_cast<uintptr_t>(p); |
| 1868 | } |
| 1869 | |
| 1870 | union Scalar32 { |
| 1871 | SkScalar fScalar; |
| 1872 | uint32_t f32; |
| 1873 | }; |
| 1874 | |
| 1875 | static uint32_t* write_scalar(uint32_t* ptr, SkScalar value) { |
| 1876 | SkASSERT(sizeof(SkScalar) == sizeof(uint32_t)); |
| 1877 | Scalar32 tmp; |
| 1878 | tmp.fScalar = value; |
| 1879 | *ptr = tmp.f32; |
| 1880 | return ptr + 1; |
| 1881 | } |
| 1882 | |
| 1883 | static SkScalar read_scalar(const uint32_t*& ptr) { |
| 1884 | SkASSERT(sizeof(SkScalar) == sizeof(uint32_t)); |
| 1885 | Scalar32 tmp; |
| 1886 | tmp.f32 = *ptr++; |
| 1887 | return tmp.fScalar; |
| 1888 | } |
| 1889 | |
| 1890 | static uint32_t pack_4(unsigned a, unsigned b, unsigned c, unsigned d) { |
| 1891 | SkASSERT(a == (uint8_t)a); |
| 1892 | SkASSERT(b == (uint8_t)b); |
| 1893 | SkASSERT(c == (uint8_t)c); |
| 1894 | SkASSERT(d == (uint8_t)d); |
| 1895 | return (a << 24) | (b << 16) | (c << 8) | d; |
| 1896 | } |
| 1897 | |
| 1898 | enum FlatFlags { |
| 1899 | kHasTypeface_FlatFlag = 0x01, |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 1900 | kHasEffects_FlatFlag = 0x02, |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1901 | }; |
| 1902 | |
| 1903 | // The size of a flat paint's POD fields |
| 1904 | static const uint32_t kPODPaintSize = 5 * sizeof(SkScalar) + |
| 1905 | 1 * sizeof(SkColor) + |
| 1906 | 1 * sizeof(uint16_t) + |
| 1907 | 6 * sizeof(uint8_t); |
| 1908 | |
| 1909 | /* To save space/time, we analyze the paint, and write a truncated version of |
| 1910 | it if there are not tricky elements like shaders, etc. |
| 1911 | */ |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1912 | void SkPaint::flatten(SkFlattenableWriteBuffer& buffer) const { |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1913 | uint8_t flatFlags = 0; |
| 1914 | if (this->getTypeface()) { |
| 1915 | flatFlags |= kHasTypeface_FlatFlag; |
| 1916 | } |
| 1917 | if (asint(this->getPathEffect()) | |
| 1918 | asint(this->getShader()) | |
| 1919 | asint(this->getXfermode()) | |
| 1920 | asint(this->getMaskFilter()) | |
| 1921 | asint(this->getColorFilter()) | |
| 1922 | asint(this->getRasterizer()) | |
senorblanco@chromium.org | 54e01b2 | 2011-11-16 18:20:47 +0000 | [diff] [blame] | 1923 | asint(this->getLooper()) | |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 1924 | asint(this->getAnnotation()) | |
senorblanco@chromium.org | 54e01b2 | 2011-11-16 18:20:47 +0000 | [diff] [blame] | 1925 | asint(this->getImageFilter())) { |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1926 | flatFlags |= kHasEffects_FlatFlag; |
| 1927 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1928 | |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1929 | SkASSERT(SkAlign4(kPODPaintSize) == kPODPaintSize); |
| 1930 | uint32_t* ptr = buffer.reserve(kPODPaintSize); |
| 1931 | |
| 1932 | ptr = write_scalar(ptr, this->getTextSize()); |
| 1933 | ptr = write_scalar(ptr, this->getTextScaleX()); |
| 1934 | ptr = write_scalar(ptr, this->getTextSkewX()); |
| 1935 | ptr = write_scalar(ptr, this->getStrokeWidth()); |
| 1936 | ptr = write_scalar(ptr, this->getStrokeMiter()); |
| 1937 | *ptr++ = this->getColor(); |
bungeman@google.com | 24babf4 | 2011-11-07 16:33:40 +0000 | [diff] [blame] | 1938 | // previously flags:16, textAlign:8, flatFlags:8 |
| 1939 | // now flags:16, hinting:4, textAlign:4, flatFlags:8 |
| 1940 | *ptr++ = (this->getFlags() << 16) | |
| 1941 | // hinting added later. 0 in this nibble means use the default. |
| 1942 | ((this->getHinting()+1) << 12) | |
| 1943 | (this->getTextAlign() << 8) | |
| 1944 | flatFlags; |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1945 | *ptr++ = pack_4(this->getStrokeCap(), this->getStrokeJoin(), |
| 1946 | this->getStyle(), this->getTextEncoding()); |
| 1947 | |
| 1948 | // now we're done with ptr and the (pre)reserved space. If we need to write |
| 1949 | // additional fields, use the buffer directly |
| 1950 | if (flatFlags & kHasTypeface_FlatFlag) { |
| 1951 | buffer.writeTypeface(this->getTypeface()); |
| 1952 | } |
| 1953 | if (flatFlags & kHasEffects_FlatFlag) { |
| 1954 | buffer.writeFlattenable(this->getPathEffect()); |
| 1955 | buffer.writeFlattenable(this->getShader()); |
| 1956 | buffer.writeFlattenable(this->getXfermode()); |
| 1957 | buffer.writeFlattenable(this->getMaskFilter()); |
| 1958 | buffer.writeFlattenable(this->getColorFilter()); |
| 1959 | buffer.writeFlattenable(this->getRasterizer()); |
| 1960 | buffer.writeFlattenable(this->getLooper()); |
senorblanco@chromium.org | 54e01b2 | 2011-11-16 18:20:47 +0000 | [diff] [blame] | 1961 | buffer.writeFlattenable(this->getImageFilter()); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 1962 | buffer.writeFlattenable(this->getAnnotation()); |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1963 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 1964 | } |
| 1965 | |
| 1966 | void SkPaint::unflatten(SkFlattenableReadBuffer& buffer) { |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1967 | SkASSERT(SkAlign4(kPODPaintSize) == kPODPaintSize); |
| 1968 | const void* podData = buffer.skip(kPODPaintSize); |
| 1969 | const uint32_t* pod = reinterpret_cast<const uint32_t*>(podData); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1970 | |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 1971 | fPrivFlags = 0; |
| 1972 | |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1973 | // the order we read must match the order we wrote in flatten() |
| 1974 | this->setTextSize(read_scalar(pod)); |
| 1975 | this->setTextScaleX(read_scalar(pod)); |
| 1976 | this->setTextSkewX(read_scalar(pod)); |
| 1977 | this->setStrokeWidth(read_scalar(pod)); |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 1978 | this->setStrokeMiter(read_scalar(pod)); |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1979 | this->setColor(*pod++); |
| 1980 | |
bungeman@google.com | 24babf4 | 2011-11-07 16:33:40 +0000 | [diff] [blame] | 1981 | // previously flags:16, textAlign:8, flatFlags:8 |
| 1982 | // now flags:16, hinting:4, textAlign:4, flatFlags:8 |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1983 | uint32_t tmp = *pod++; |
| 1984 | this->setFlags(tmp >> 16); |
bungeman@google.com | 24babf4 | 2011-11-07 16:33:40 +0000 | [diff] [blame] | 1985 | |
| 1986 | // hinting added later. 0 in this nibble means use the default. |
| 1987 | uint32_t hinting = (tmp >> 12) & 0xF; |
| 1988 | this->setHinting(0 == hinting ? kNormal_Hinting : static_cast<Hinting>(hinting-1)); |
| 1989 | |
| 1990 | this->setTextAlign(static_cast<Align>((tmp >> 8) & 0xF)); |
| 1991 | |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 1992 | uint8_t flatFlags = tmp & 0xFF; |
| 1993 | |
| 1994 | tmp = *pod++; |
| 1995 | this->setStrokeCap(static_cast<Cap>((tmp >> 24) & 0xFF)); |
| 1996 | this->setStrokeJoin(static_cast<Join>((tmp >> 16) & 0xFF)); |
| 1997 | this->setStyle(static_cast<Style>((tmp >> 8) & 0xFF)); |
| 1998 | this->setTextEncoding(static_cast<TextEncoding>((tmp >> 0) & 0xFF)); |
| 1999 | |
| 2000 | if (flatFlags & kHasTypeface_FlatFlag) { |
| 2001 | this->setTypeface(buffer.readTypeface()); |
| 2002 | } else { |
| 2003 | this->setTypeface(NULL); |
| 2004 | } |
| 2005 | |
| 2006 | if (flatFlags & kHasEffects_FlatFlag) { |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2007 | SkSafeUnref(this->setPathEffect((SkPathEffect*) buffer.readFlattenable())); |
| 2008 | SkSafeUnref(this->setShader((SkShader*) buffer.readFlattenable())); |
| 2009 | SkSafeUnref(this->setXfermode((SkXfermode*) buffer.readFlattenable())); |
| 2010 | SkSafeUnref(this->setMaskFilter((SkMaskFilter*) buffer.readFlattenable())); |
| 2011 | SkSafeUnref(this->setColorFilter((SkColorFilter*) buffer.readFlattenable())); |
| 2012 | SkSafeUnref(this->setRasterizer((SkRasterizer*) buffer.readFlattenable())); |
| 2013 | SkSafeUnref(this->setLooper((SkDrawLooper*) buffer.readFlattenable())); |
senorblanco@chromium.org | 54e01b2 | 2011-11-16 18:20:47 +0000 | [diff] [blame] | 2014 | SkSafeUnref(this->setImageFilter((SkImageFilter*) buffer.readFlattenable())); |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 2015 | SkSafeUnref(this->setAnnotation((SkAnnotation*) buffer.readFlattenable())); |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 2016 | } else { |
| 2017 | this->setPathEffect(NULL); |
| 2018 | this->setShader(NULL); |
| 2019 | this->setXfermode(NULL); |
| 2020 | this->setMaskFilter(NULL); |
| 2021 | this->setColorFilter(NULL); |
| 2022 | this->setRasterizer(NULL); |
| 2023 | this->setLooper(NULL); |
senorblanco@chromium.org | 54e01b2 | 2011-11-16 18:20:47 +0000 | [diff] [blame] | 2024 | this->setImageFilter(NULL); |
reed@android.com | aefd2bc | 2009-03-30 21:02:14 +0000 | [diff] [blame] | 2025 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2026 | } |
| 2027 | |
| 2028 | /////////////////////////////////////////////////////////////////////////////// |
| 2029 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2030 | SkShader* SkPaint::setShader(SkShader* shader) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2031 | GEN_ID_INC_EVAL(shader != fShader); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2032 | SkRefCnt_SafeAssign(fShader, shader); |
| 2033 | return shader; |
| 2034 | } |
| 2035 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2036 | SkColorFilter* SkPaint::setColorFilter(SkColorFilter* filter) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2037 | GEN_ID_INC_EVAL(filter != fColorFilter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2038 | SkRefCnt_SafeAssign(fColorFilter, filter); |
| 2039 | return filter; |
| 2040 | } |
| 2041 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2042 | SkXfermode* SkPaint::setXfermode(SkXfermode* mode) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2043 | GEN_ID_INC_EVAL(mode != fXfermode); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2044 | SkRefCnt_SafeAssign(fXfermode, mode); |
| 2045 | return mode; |
| 2046 | } |
| 2047 | |
reed@android.com | 0baf193 | 2009-06-24 12:41:42 +0000 | [diff] [blame] | 2048 | SkXfermode* SkPaint::setXfermodeMode(SkXfermode::Mode mode) { |
reed@android.com | d66eef7 | 2009-06-24 12:29:16 +0000 | [diff] [blame] | 2049 | SkSafeUnref(fXfermode); |
| 2050 | fXfermode = SkXfermode::Create(mode); |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2051 | GEN_ID_INC; |
reed@android.com | d66eef7 | 2009-06-24 12:29:16 +0000 | [diff] [blame] | 2052 | return fXfermode; |
| 2053 | } |
| 2054 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2055 | SkPathEffect* SkPaint::setPathEffect(SkPathEffect* effect) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2056 | GEN_ID_INC_EVAL(effect != fPathEffect); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2057 | SkRefCnt_SafeAssign(fPathEffect, effect); |
| 2058 | return effect; |
| 2059 | } |
| 2060 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2061 | SkMaskFilter* SkPaint::setMaskFilter(SkMaskFilter* filter) { |
djsollen@google.com | f5dbe2f | 2011-04-15 13:41:26 +0000 | [diff] [blame] | 2062 | GEN_ID_INC_EVAL(filter != fMaskFilter); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2063 | SkRefCnt_SafeAssign(fMaskFilter, filter); |
| 2064 | return filter; |
| 2065 | } |
| 2066 | |
reed@google.com | 82065d6 | 2011-02-07 15:30:46 +0000 | [diff] [blame] | 2067 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2068 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2069 | bool SkPaint::getFillPath(const SkPath& src, SkPath* dst) const { |
reed@google.com | fd4be26 | 2012-05-25 01:04:12 +0000 | [diff] [blame] | 2070 | SkStrokeRec rec(*this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2071 | |
reed@google.com | fd4be26 | 2012-05-25 01:04:12 +0000 | [diff] [blame] | 2072 | const SkPath* srcPtr = &src; |
| 2073 | SkPath tmpPath; |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 2074 | |
reed@google.com | fd4be26 | 2012-05-25 01:04:12 +0000 | [diff] [blame] | 2075 | if (fPathEffect && fPathEffect->filterPath(&tmpPath, src, &rec)) { |
| 2076 | srcPtr = &tmpPath; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2077 | } |
| 2078 | |
reed@google.com | fd4be26 | 2012-05-25 01:04:12 +0000 | [diff] [blame] | 2079 | if (!rec.applyToPath(dst, *srcPtr)) { |
| 2080 | if (srcPtr == &tmpPath) { |
| 2081 | // If path's were copy-on-write, this trick would not be needed. |
| 2082 | // As it is, we want to save making a deep-copy from tmpPath -> dst |
| 2083 | // since we know we're just going to delete tmpPath when we return, |
| 2084 | // so the swap saves that copy. |
| 2085 | dst->swap(tmpPath); |
| 2086 | } else { |
| 2087 | *dst = *srcPtr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2088 | } |
| 2089 | } |
reed@google.com | fd4be26 | 2012-05-25 01:04:12 +0000 | [diff] [blame] | 2090 | return !rec.isHairlineStyle(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2091 | } |
| 2092 | |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2093 | const SkRect& SkPaint::doComputeFastBounds(const SkRect& origSrc, |
reed@google.com | a584aed | 2012-05-16 14:06:02 +0000 | [diff] [blame] | 2094 | SkRect* storage, |
| 2095 | Style style) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2096 | SkASSERT(storage); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 2097 | |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2098 | const SkRect* src = &origSrc; |
| 2099 | |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2100 | if (this->getLooper()) { |
| 2101 | SkASSERT(this->getLooper()->canComputeFastBounds(*this)); |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2102 | this->getLooper()->computeFastBounds(*this, *src, storage); |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2103 | return *storage; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2104 | } |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2105 | |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2106 | SkRect tmpSrc; |
| 2107 | if (this->getPathEffect()) { |
| 2108 | this->getPathEffect()->computeFastBounds(&tmpSrc, origSrc); |
| 2109 | src = &tmpSrc; |
| 2110 | } |
| 2111 | |
reed@google.com | a584aed | 2012-05-16 14:06:02 +0000 | [diff] [blame] | 2112 | if (kFill_Style != style) { |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2113 | // since we're stroked, outset the rect by the radius (and join type) |
| 2114 | SkScalar radius = SkScalarHalf(this->getStrokeWidth()); |
| 2115 | if (0 == radius) { // hairline |
| 2116 | radius = SK_Scalar1; |
| 2117 | } else if (this->getStrokeJoin() == SkPaint::kMiter_Join) { |
| 2118 | SkScalar scale = this->getStrokeMiter(); |
| 2119 | if (scale > SK_Scalar1) { |
| 2120 | radius = SkScalarMul(radius, scale); |
| 2121 | } |
| 2122 | } |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2123 | storage->set(src->fLeft - radius, src->fTop - radius, |
| 2124 | src->fRight + radius, src->fBottom + radius); |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2125 | } else { |
reed@google.com | e4f10a7 | 2012-05-15 20:47:50 +0000 | [diff] [blame] | 2126 | *storage = *src; |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2127 | } |
| 2128 | |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2129 | if (this->getMaskFilter()) { |
| 2130 | this->getMaskFilter()->computeFastBounds(*storage, storage); |
| 2131 | } |
| 2132 | |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 2133 | return *storage; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2134 | } |
| 2135 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2136 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2137 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2138 | static bool has_thick_frame(const SkPaint& paint) { |
| 2139 | return paint.getStrokeWidth() > 0 && |
| 2140 | paint.getStyle() != SkPaint::kFill_Style; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2141 | } |
| 2142 | |
| 2143 | SkTextToPathIter::SkTextToPathIter( const char text[], size_t length, |
| 2144 | const SkPaint& paint, |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 2145 | bool applyStrokeAndPathEffects) |
| 2146 | : fPaint(paint) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2147 | fGlyphCacheProc = paint.getMeasureCacheProc(SkPaint::kForward_TextBufferDirection, |
| 2148 | true); |
| 2149 | |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 2150 | fPaint.setLinearText(true); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2151 | fPaint.setMaskFilter(NULL); // don't want this affecting our path-cache lookup |
| 2152 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2153 | if (fPaint.getPathEffect() == NULL && !has_thick_frame(fPaint)) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2154 | applyStrokeAndPathEffects = false; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2155 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2156 | |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 2157 | // can't use our canonical size if we need to apply patheffects |
| 2158 | if (fPaint.getPathEffect() == NULL) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2159 | fPaint.setTextSize(SkIntToScalar(SkPaint::kCanonicalTextSizeForPaths)); |
| 2160 | fScale = paint.getTextSize() / SkPaint::kCanonicalTextSizeForPaths; |
djsollen@google.com | 166e653 | 2012-03-20 14:24:38 +0000 | [diff] [blame] | 2161 | if (has_thick_frame(fPaint)) { |
| 2162 | fPaint.setStrokeWidth(SkScalarDiv(fPaint.getStrokeWidth(), fScale)); |
| 2163 | } |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2164 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2165 | fScale = SK_Scalar1; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2166 | } |
reed@google.com | 72cf492 | 2011-01-04 19:58:20 +0000 | [diff] [blame] | 2167 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2168 | if (!applyStrokeAndPathEffects) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2169 | fPaint.setStyle(SkPaint::kFill_Style); |
| 2170 | fPaint.setPathEffect(NULL); |
| 2171 | } |
| 2172 | |
| 2173 | fCache = fPaint.detachCache(NULL); |
| 2174 | |
| 2175 | SkPaint::Style style = SkPaint::kFill_Style; |
| 2176 | SkPathEffect* pe = NULL; |
| 2177 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2178 | if (!applyStrokeAndPathEffects) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2179 | style = paint.getStyle(); // restore |
| 2180 | pe = paint.getPathEffect(); // restore |
| 2181 | } |
| 2182 | fPaint.setStyle(style); |
| 2183 | fPaint.setPathEffect(pe); |
| 2184 | fPaint.setMaskFilter(paint.getMaskFilter()); // restore |
| 2185 | |
| 2186 | // now compute fXOffset if needed |
| 2187 | |
| 2188 | SkScalar xOffset = 0; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2189 | if (paint.getTextAlign() != SkPaint::kLeft_Align) { // need to measure first |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2190 | int count; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2191 | SkScalar width = SkScalarMul(fPaint.measure_text(fCache, text, length, |
| 2192 | &count, NULL), fScale); |
| 2193 | if (paint.getTextAlign() == SkPaint::kCenter_Align) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2194 | width = SkScalarHalf(width); |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2195 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2196 | xOffset = -width; |
| 2197 | } |
| 2198 | fXPos = xOffset; |
| 2199 | fPrevAdvance = 0; |
| 2200 | |
| 2201 | fText = text; |
| 2202 | fStop = text + length; |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 2203 | |
| 2204 | fXYIndex = paint.isVerticalText() ? 1 : 0; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2205 | } |
| 2206 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2207 | SkTextToPathIter::~SkTextToPathIter() { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2208 | SkGlyphCache::AttachCache(fCache); |
| 2209 | } |
| 2210 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2211 | const SkPath* SkTextToPathIter::next(SkScalar* xpos) { |
| 2212 | while (fText < fStop) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2213 | const SkGlyph& glyph = fGlyphCacheProc(fCache, &fText); |
| 2214 | |
| 2215 | fXPos += SkScalarMul(SkFixedToScalar(fPrevAdvance + fAutoKern.adjust(glyph)), fScale); |
reed@google.com | 44da42e | 2011-11-10 20:04:47 +0000 | [diff] [blame] | 2216 | fPrevAdvance = advance(glyph, fXYIndex); // + fPaint.getTextTracking(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2217 | |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2218 | if (glyph.fWidth) { |
| 2219 | if (xpos) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2220 | *xpos = fXPos; |
reed@google.com | 6fb7e2e | 2011-02-08 22:22:52 +0000 | [diff] [blame] | 2221 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2222 | return fCache->findPath(glyph); |
| 2223 | } |
| 2224 | } |
| 2225 | return NULL; |
| 2226 | } |
reed@google.com | dcd0f3a | 2011-10-04 01:17:15 +0000 | [diff] [blame] | 2227 | |
| 2228 | /////////////////////////////////////////////////////////////////////////////// |
| 2229 | |
| 2230 | bool SkPaint::nothingToDraw() const { |
reed@google.com | 733e302 | 2011-10-06 15:11:03 +0000 | [diff] [blame] | 2231 | if (fLooper) { |
| 2232 | return false; |
| 2233 | } |
reed@google.com | dcd0f3a | 2011-10-04 01:17:15 +0000 | [diff] [blame] | 2234 | SkXfermode::Mode mode; |
| 2235 | if (SkXfermode::AsMode(fXfermode, &mode)) { |
| 2236 | switch (mode) { |
| 2237 | case SkXfermode::kSrcOver_Mode: |
| 2238 | case SkXfermode::kSrcATop_Mode: |
| 2239 | case SkXfermode::kDstOut_Mode: |
| 2240 | case SkXfermode::kDstOver_Mode: |
| 2241 | case SkXfermode::kPlus_Mode: |
| 2242 | return 0 == this->getAlpha(); |
| 2243 | case SkXfermode::kDst_Mode: |
| 2244 | return true; |
| 2245 | default: |
| 2246 | break; |
| 2247 | } |
| 2248 | } |
| 2249 | return false; |
| 2250 | } |
| 2251 | |
| 2252 | |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 2253 | //////////// Move these to their own file soon. |
| 2254 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 2255 | SK_DEFINE_INST_COUNT(SkImageFilter) |
| 2256 | |
reed@google.com | 76dd277 | 2012-01-05 21:15:07 +0000 | [diff] [blame] | 2257 | bool SkImageFilter::filterImage(Proxy* proxy, const SkBitmap& src, |
| 2258 | const SkMatrix& ctm, |
reed@google.com | 32d25b6 | 2011-12-20 16:19:00 +0000 | [diff] [blame] | 2259 | SkBitmap* result, SkIPoint* loc) { |
reed@google.com | 76dd277 | 2012-01-05 21:15:07 +0000 | [diff] [blame] | 2260 | SkASSERT(proxy); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 2261 | SkASSERT(result); |
reed@google.com | 32d25b6 | 2011-12-20 16:19:00 +0000 | [diff] [blame] | 2262 | SkASSERT(loc); |
reed@google.com | 76dd277 | 2012-01-05 21:15:07 +0000 | [diff] [blame] | 2263 | /* |
| 2264 | * Give the proxy first shot at the filter. If it returns false, ask |
| 2265 | * the filter to do it. |
| 2266 | */ |
| 2267 | return proxy->filterImage(this, src, ctm, result, loc) || |
| 2268 | this->onFilterImage(proxy, src, ctm, result, loc); |
reed@google.com | 32d25b6 | 2011-12-20 16:19:00 +0000 | [diff] [blame] | 2269 | } |
| 2270 | |
| 2271 | bool SkImageFilter::filterBounds(const SkIRect& src, const SkMatrix& ctm, |
| 2272 | SkIRect* dst) { |
| 2273 | SkASSERT(&src); |
| 2274 | SkASSERT(dst); |
| 2275 | return this->onFilterBounds(src, ctm, dst); |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 2276 | } |
| 2277 | |
reed@google.com | 76dd277 | 2012-01-05 21:15:07 +0000 | [diff] [blame] | 2278 | bool SkImageFilter::onFilterImage(Proxy*, const SkBitmap&, const SkMatrix&, |
reed@google.com | 32d25b6 | 2011-12-20 16:19:00 +0000 | [diff] [blame] | 2279 | SkBitmap*, SkIPoint*) { |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 2280 | return false; |
| 2281 | } |
| 2282 | |
reed@google.com | 32d25b6 | 2011-12-20 16:19:00 +0000 | [diff] [blame] | 2283 | bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm, |
| 2284 | SkIRect* dst) { |
| 2285 | *dst = src; |
| 2286 | return true; |
| 2287 | } |
| 2288 | |
tomhudson@google.com | d0c1a06 | 2012-07-12 17:23:52 +0000 | [diff] [blame] | 2289 | bool SkImageFilter::asNewCustomStage(GrCustomStage**, GrTexture*) const { |
senorblanco@chromium.org | 894790d | 2012-07-11 16:01:22 +0000 | [diff] [blame] | 2290 | return false; |
| 2291 | } |
| 2292 | |
reed@google.com | 15356a6 | 2011-11-03 19:29:08 +0000 | [diff] [blame] | 2293 | bool SkImageFilter::asABlur(SkSize* sigma) const { |
| 2294 | return false; |
| 2295 | } |
| 2296 | |
senorblanco@chromium.org | 05054f1 | 2012-03-02 21:05:45 +0000 | [diff] [blame] | 2297 | bool SkImageFilter::asAnErode(SkISize* radius) const { |
| 2298 | return false; |
| 2299 | } |
| 2300 | |
| 2301 | bool SkImageFilter::asADilate(SkISize* radius) const { |
| 2302 | return false; |
| 2303 | } |
| 2304 | |
reed@google.com | b0a34d8 | 2012-07-11 19:57:55 +0000 | [diff] [blame] | 2305 | //////////////////// |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2306 | |
robertphillips@google.com | 0456e0b | 2012-06-27 14:03:26 +0000 | [diff] [blame] | 2307 | SK_DEFINE_INST_COUNT(SkDrawLooper) |
| 2308 | |
reed@google.com | 9efd9a0 | 2012-01-30 15:41:43 +0000 | [diff] [blame] | 2309 | bool SkDrawLooper::canComputeFastBounds(const SkPaint& paint) { |
| 2310 | SkCanvas canvas; |
| 2311 | |
| 2312 | this->init(&canvas); |
| 2313 | for (;;) { |
| 2314 | SkPaint p(paint); |
| 2315 | if (this->next(&canvas, &p)) { |
| 2316 | p.setLooper(NULL); |
| 2317 | if (!p.canComputeFastBounds()) { |
| 2318 | return false; |
| 2319 | } |
| 2320 | } else { |
| 2321 | break; |
| 2322 | } |
| 2323 | } |
| 2324 | return true; |
| 2325 | } |
| 2326 | |
| 2327 | void SkDrawLooper::computeFastBounds(const SkPaint& paint, const SkRect& src, |
| 2328 | SkRect* dst) { |
| 2329 | SkCanvas canvas; |
| 2330 | |
| 2331 | this->init(&canvas); |
| 2332 | for (bool firstTime = true;; firstTime = false) { |
| 2333 | SkPaint p(paint); |
| 2334 | if (this->next(&canvas, &p)) { |
| 2335 | SkRect r(src); |
| 2336 | |
| 2337 | p.setLooper(NULL); |
| 2338 | p.computeFastBounds(r, &r); |
| 2339 | canvas.getTotalMatrix().mapRect(&r); |
| 2340 | |
| 2341 | if (firstTime) { |
| 2342 | *dst = r; |
| 2343 | } else { |
| 2344 | dst->join(r); |
| 2345 | } |
| 2346 | } else { |
| 2347 | break; |
| 2348 | } |
| 2349 | } |
| 2350 | } |
| 2351 | |