epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 7 | #include "SkArenaAlloc.h" |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 8 | #include "SkBlurDrawLooper.h" |
| 9 | #include "SkBlurMaskFilter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #include "SkCanvas.h" |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 11 | #include "SkColorSpaceXformer.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 12 | #include "SkColor.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 13 | #include "SkReadBuffer.h" |
| 14 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | #include "SkLayerDrawLooper.h" |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 16 | #include "SkString.h" |
| 17 | #include "SkStringUtils.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 18 | #include "SkUnPreMultiply.h" |
| 19 | |
| 20 | SkLayerDrawLooper::LayerInfo::LayerInfo() { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 21 | fPaintBits = 0; // ignore our paint fields |
Mike Reed | faba371 | 2016-11-03 14:45:31 -0400 | [diff] [blame] | 22 | fColorMode = SkBlendMode::kDst; // ignore our color |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 23 | fOffset.set(0, 0); |
| 24 | fPostTranslate = false; |
| 25 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 26 | |
vandebo@chromium.org | 3c89818 | 2011-06-22 05:01:28 +0000 | [diff] [blame] | 27 | SkLayerDrawLooper::SkLayerDrawLooper() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 28 | : fRecs(nullptr), |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 29 | fCount(0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | SkLayerDrawLooper::~SkLayerDrawLooper() { |
| 33 | Rec* rec = fRecs; |
| 34 | while (rec) { |
| 35 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 36 | delete rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | rec = next; |
| 38 | } |
| 39 | } |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 40 | |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 41 | SkLayerDrawLooper::Context* |
| 42 | SkLayerDrawLooper::makeContext(SkCanvas* canvas, SkArenaAlloc* alloc) const { |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 43 | canvas->save(); |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 44 | return alloc->make<LayerDrawLooperContext>(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 45 | } |
| 46 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 47 | static SkColor xferColor(SkColor src, SkColor dst, SkBlendMode mode) { |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 48 | switch (mode) { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 49 | case SkBlendMode::kSrc: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 50 | return src; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 51 | case SkBlendMode::kDst: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 52 | return dst; |
| 53 | default: { |
| 54 | SkPMColor pmS = SkPreMultiplyColor(src); |
| 55 | SkPMColor pmD = SkPreMultiplyColor(dst); |
Mike Reed | 6a01554 | 2016-11-09 10:38:09 -0500 | [diff] [blame] | 56 | SkPMColor result = SkXfermode::GetProc(mode)(pmS, pmD); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 57 | return SkUnPreMultiply::PMColorToColor(result); |
| 58 | } |
| 59 | } |
| 60 | } |
| 61 | |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 62 | // Even with kEntirePaint_Bits, we always ensure that the master paint's |
| 63 | // text-encoding is respected, since that controls how we interpret the |
| 64 | // text/length parameters of a draw[Pos]Text call. |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 65 | void SkLayerDrawLooper::LayerDrawLooperContext::ApplyInfo( |
| 66 | SkPaint* dst, const SkPaint& src, const LayerInfo& info) { |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 67 | SkColor srcColor = src.getColor(); |
| 68 | #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| 69 | // The framework may respect the alpha value on the original paint. |
| 70 | // Match this legacy behavior. |
| 71 | if (SkColorGetA(srcColor) == 255) { |
| 72 | srcColor = SkColorSetA(srcColor, dst->getAlpha()); |
| 73 | } |
| 74 | #endif |
| 75 | dst->setColor(xferColor(srcColor, dst->getColor(), (SkBlendMode)info.fColorMode)); |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 76 | |
| 77 | BitFlags bits = info.fPaintBits; |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 78 | SkPaint::TextEncoding encoding = dst->getTextEncoding(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 79 | |
mike@reedtribe.org | 3c1225b | 2011-04-09 18:54:08 +0000 | [diff] [blame] | 80 | if (0 == bits) { |
| 81 | return; |
| 82 | } |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 83 | if (kEntirePaint_Bits == bits) { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 84 | // we've already computed these, so save it from the assignment |
| 85 | uint32_t f = dst->getFlags(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 86 | SkColor c = dst->getColor(); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 87 | *dst = src; |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 88 | dst->setFlags(f); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 89 | dst->setColor(c); |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 90 | dst->setTextEncoding(encoding); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 91 | return; |
| 92 | } |
| 93 | |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 94 | if (bits & kStyle_Bit) { |
| 95 | dst->setStyle(src.getStyle()); |
| 96 | dst->setStrokeWidth(src.getStrokeWidth()); |
| 97 | dst->setStrokeMiter(src.getStrokeMiter()); |
| 98 | dst->setStrokeCap(src.getStrokeCap()); |
| 99 | dst->setStrokeJoin(src.getStrokeJoin()); |
| 100 | } |
| 101 | |
| 102 | if (bits & kTextSkewX_Bit) { |
| 103 | dst->setTextSkewX(src.getTextSkewX()); |
| 104 | } |
| 105 | |
| 106 | if (bits & kPathEffect_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 107 | dst->setPathEffect(src.refPathEffect()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 108 | } |
| 109 | if (bits & kMaskFilter_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 110 | dst->setMaskFilter(src.refMaskFilter()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 111 | } |
| 112 | if (bits & kShader_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 113 | dst->setShader(src.refShader()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 114 | } |
| 115 | if (bits & kColorFilter_Bit) { |
Mike Reed | 693fdbd | 2017-01-12 10:13:40 -0500 | [diff] [blame] | 116 | dst->setColorFilter(src.refColorFilter()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 117 | } |
| 118 | if (bits & kXfermode_Bit) { |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 119 | dst->setBlendMode(src.getBlendMode()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 120 | } |
| 121 | |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 122 | // we don't override these |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 123 | #if 0 |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 124 | dst->setTypeface(src.getTypeface()); |
| 125 | dst->setTextSize(src.getTextSize()); |
| 126 | dst->setTextScaleX(src.getTextScaleX()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 127 | dst->setRasterizer(src.getRasterizer()); |
| 128 | dst->setLooper(src.getLooper()); |
| 129 | dst->setTextEncoding(src.getTextEncoding()); |
| 130 | dst->setHinting(src.getHinting()); |
| 131 | #endif |
| 132 | } |
| 133 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 134 | // Should we add this to canvas? |
| 135 | static void postTranslate(SkCanvas* canvas, SkScalar dx, SkScalar dy) { |
| 136 | SkMatrix m = canvas->getTotalMatrix(); |
| 137 | m.postTranslate(dx, dy); |
| 138 | canvas->setMatrix(m); |
| 139 | } |
| 140 | |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 141 | SkLayerDrawLooper::LayerDrawLooperContext::LayerDrawLooperContext( |
| 142 | const SkLayerDrawLooper* looper) : fCurrRec(looper->fRecs) {} |
| 143 | |
| 144 | bool SkLayerDrawLooper::LayerDrawLooperContext::next(SkCanvas* canvas, |
| 145 | SkPaint* paint) { |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 146 | canvas->restore(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 147 | if (nullptr == fCurrRec) { |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 148 | return false; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 149 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 150 | |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 151 | ApplyInfo(paint, fCurrRec->fPaint, fCurrRec->fInfo); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 152 | |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 153 | canvas->save(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 154 | if (fCurrRec->fInfo.fPostTranslate) { |
| 155 | postTranslate(canvas, fCurrRec->fInfo.fOffset.fX, |
| 156 | fCurrRec->fInfo.fOffset.fY); |
| 157 | } else { |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 158 | canvas->translate(fCurrRec->fInfo.fOffset.fX, |
| 159 | fCurrRec->fInfo.fOffset.fY); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 160 | } |
mike@reedtribe.org | e5d0def | 2011-04-08 00:53:48 +0000 | [diff] [blame] | 161 | fCurrRec = fCurrRec->fNext; |
| 162 | |
reed@google.com | 4e2b3d3 | 2011-04-07 14:18:59 +0000 | [diff] [blame] | 163 | return true; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 164 | } |
| 165 | |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 166 | bool SkLayerDrawLooper::asABlurShadow(BlurShadowRec* bsRec) const { |
| 167 | if (fCount != 2) { |
| 168 | return false; |
| 169 | } |
| 170 | const Rec* rec = fRecs; |
| 171 | |
| 172 | // bottom layer needs to be just blur(maskfilter) |
| 173 | if ((rec->fInfo.fPaintBits & ~kMaskFilter_Bit)) { |
| 174 | return false; |
| 175 | } |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 176 | if (SkBlendMode::kSrc != (SkBlendMode)rec->fInfo.fColorMode) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 177 | return false; |
| 178 | } |
| 179 | const SkMaskFilter* mf = rec->fPaint.getMaskFilter(); |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 180 | if (nullptr == mf) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 181 | return false; |
| 182 | } |
| 183 | SkMaskFilter::BlurRec maskBlur; |
| 184 | if (!mf->asABlur(&maskBlur)) { |
| 185 | return false; |
| 186 | } |
| 187 | |
| 188 | rec = rec->fNext; |
| 189 | // top layer needs to be "plain" |
| 190 | if (rec->fInfo.fPaintBits) { |
| 191 | return false; |
| 192 | } |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 193 | if (SkBlendMode::kDst != (SkBlendMode)rec->fInfo.fColorMode) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 194 | return false; |
| 195 | } |
| 196 | if (!rec->fInfo.fOffset.equals(0, 0)) { |
| 197 | return false; |
| 198 | } |
| 199 | |
| 200 | if (bsRec) { |
| 201 | bsRec->fSigma = maskBlur.fSigma; |
| 202 | bsRec->fOffset = fRecs->fInfo.fOffset; |
| 203 | bsRec->fColor = fRecs->fPaint.getColor(); |
| 204 | bsRec->fStyle = maskBlur.fStyle; |
| 205 | bsRec->fQuality = maskBlur.fQuality; |
| 206 | } |
| 207 | return true; |
| 208 | } |
| 209 | |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 210 | sk_sp<SkDrawLooper> SkLayerDrawLooper::onMakeColorSpace(SkColorSpaceXformer* xformer) const { |
| 211 | if (!fCount) { |
| 212 | return sk_ref_sp(const_cast<SkLayerDrawLooper*>(this)); |
| 213 | } |
| 214 | |
| 215 | auto looper = sk_sp<SkLayerDrawLooper>(new SkLayerDrawLooper()); |
| 216 | looper->fCount = fCount; |
| 217 | |
| 218 | Rec* oldRec = fRecs; |
| 219 | Rec* newTopRec = new Rec(); |
| 220 | newTopRec->fInfo = oldRec->fInfo; |
| 221 | newTopRec->fPaint = xformer->apply(oldRec->fPaint); |
| 222 | newTopRec->fNext = nullptr; |
| 223 | |
| 224 | Rec* prevNewRec = newTopRec; |
| 225 | oldRec = oldRec->fNext; |
| 226 | while (oldRec) { |
| 227 | Rec* newRec = new Rec(); |
| 228 | newRec->fInfo = oldRec->fInfo; |
| 229 | newRec->fPaint = xformer->apply(oldRec->fPaint); |
| 230 | newRec->fNext = nullptr; |
| 231 | prevNewRec->fNext = newRec; |
| 232 | |
| 233 | prevNewRec = newRec; |
| 234 | oldRec = oldRec->fNext; |
| 235 | } |
| 236 | |
| 237 | looper->fRecs = newTopRec; |
| 238 | return std::move(looper); |
| 239 | } |
| 240 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 241 | /////////////////////////////////////////////////////////////////////////////// |
| 242 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 243 | void SkLayerDrawLooper::flatten(SkWriteBuffer& buffer) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 244 | buffer.writeInt(fCount); |
rmistry@google.com | fbfcd56 | 2012-08-23 18:09:54 +0000 | [diff] [blame] | 245 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | Rec* rec = fRecs; |
| 247 | for (int i = 0; i < fCount; i++) { |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 248 | // Legacy "flagsmask" field -- now ignored, remove when we bump version |
| 249 | buffer.writeInt(0); |
| 250 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 251 | buffer.writeInt(rec->fInfo.fPaintBits); |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 252 | buffer.writeInt((int)rec->fInfo.fColorMode); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 253 | buffer.writePoint(rec->fInfo.fOffset); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 254 | buffer.writeBool(rec->fInfo.fPostTranslate); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 255 | buffer.writePaint(rec->fPaint); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 256 | rec = rec->fNext; |
| 257 | } |
| 258 | } |
| 259 | |
reed | 60c9b58 | 2016-04-03 09:11:13 -0700 | [diff] [blame] | 260 | sk_sp<SkFlattenable> SkLayerDrawLooper::CreateProc(SkReadBuffer& buffer) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 261 | int count = buffer.readInt(); |
| 262 | |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 263 | Builder builder; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 264 | for (int i = 0; i < count; i++) { |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 265 | LayerInfo info; |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 266 | // Legacy "flagsmask" field -- now ignored, remove when we bump version |
reed@google.com | 48f31bd | 2014-02-27 14:27:44 +0000 | [diff] [blame] | 267 | (void)buffer.readInt(); |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 268 | |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 269 | info.fPaintBits = buffer.readInt(); |
Mike Reed | faba371 | 2016-11-03 14:45:31 -0400 | [diff] [blame] | 270 | info.fColorMode = (SkBlendMode)buffer.readInt(); |
djsollen@google.com | c73dd5c | 2012-08-07 15:54:32 +0000 | [diff] [blame] | 271 | buffer.readPoint(&info.fOffset); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 272 | info.fPostTranslate = buffer.readBool(); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 273 | buffer.readPaint(builder.addLayerOnTop(info)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 274 | } |
reed | 60c9b58 | 2016-04-03 09:11:13 -0700 | [diff] [blame] | 275 | return builder.detach(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 276 | } |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 277 | |
commit-bot@chromium.org | 0f10f7b | 2014-03-13 18:02:17 +0000 | [diff] [blame] | 278 | #ifndef SK_IGNORE_TO_STRING |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 279 | void SkLayerDrawLooper::toString(SkString* str) const { |
| 280 | str->appendf("SkLayerDrawLooper (%d): ", fCount); |
| 281 | |
| 282 | Rec* rec = fRecs; |
| 283 | for (int i = 0; i < fCount; i++) { |
reed@google.com | 842292f | 2014-02-28 15:38:22 +0000 | [diff] [blame] | 284 | str->appendf("%d: paintBits: (", i); |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 285 | if (0 == rec->fInfo.fPaintBits) { |
| 286 | str->append("None"); |
| 287 | } else if (kEntirePaint_Bits == rec->fInfo.fPaintBits) { |
| 288 | str->append("EntirePaint"); |
| 289 | } else { |
| 290 | bool needSeparator = false; |
| 291 | SkAddFlagToString(str, SkToBool(kStyle_Bit & rec->fInfo.fPaintBits), "Style", |
| 292 | &needSeparator); |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 293 | SkAddFlagToString(str, SkToBool(kTextSkewX_Bit & rec->fInfo.fPaintBits), "TextSkewX", |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 294 | &needSeparator); |
| 295 | SkAddFlagToString(str, SkToBool(kPathEffect_Bit & rec->fInfo.fPaintBits), "PathEffect", |
| 296 | &needSeparator); |
| 297 | SkAddFlagToString(str, SkToBool(kMaskFilter_Bit & rec->fInfo.fPaintBits), "MaskFilter", |
| 298 | &needSeparator); |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 299 | SkAddFlagToString(str, SkToBool(kShader_Bit & rec->fInfo.fPaintBits), "Shader", |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 300 | &needSeparator); |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 301 | SkAddFlagToString(str, SkToBool(kColorFilter_Bit & rec->fInfo.fPaintBits), "ColorFilter", |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 302 | &needSeparator); |
skia.committer@gmail.com | cdcb2ce | 2013-01-29 07:05:52 +0000 | [diff] [blame] | 303 | SkAddFlagToString(str, SkToBool(kXfermode_Bit & rec->fInfo.fPaintBits), "Xfermode", |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 304 | &needSeparator); |
| 305 | } |
| 306 | str->append(") "); |
| 307 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 308 | static const char* gModeStrings[(int)SkBlendMode::kLastMode+1] = { |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 309 | "kClear", "kSrc", "kDst", "kSrcOver", "kDstOver", "kSrcIn", "kDstIn", |
| 310 | "kSrcOut", "kDstOut", "kSrcATop", "kDstATop", "kXor", "kPlus", |
| 311 | "kMultiply", "kScreen", "kOverlay", "kDarken", "kLighten", "kColorDodge", |
| 312 | "kColorBurn", "kHardLight", "kSoftLight", "kDifference", "kExclusion" |
| 313 | }; |
| 314 | |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 315 | str->appendf("mode: %s ", gModeStrings[(int)rec->fInfo.fColorMode]); |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 316 | |
| 317 | str->append("offset: ("); |
| 318 | str->appendScalar(rec->fInfo.fOffset.fX); |
| 319 | str->append(", "); |
| 320 | str->appendScalar(rec->fInfo.fOffset.fY); |
| 321 | str->append(") "); |
| 322 | |
| 323 | str->append("postTranslate: "); |
| 324 | if (rec->fInfo.fPostTranslate) { |
| 325 | str->append("true "); |
| 326 | } else { |
| 327 | str->append("false "); |
| 328 | } |
| 329 | |
robertphillips@google.com | 791f12e | 2013-02-14 13:53:53 +0000 | [diff] [blame] | 330 | rec->fPaint.toString(str); |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 331 | rec = rec->fNext; |
| 332 | } |
| 333 | } |
| 334 | #endif |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 335 | |
| 336 | SkLayerDrawLooper::Builder::Builder() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 337 | : fRecs(nullptr), |
| 338 | fTopRec(nullptr), |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 339 | fCount(0) { |
| 340 | } |
| 341 | |
| 342 | SkLayerDrawLooper::Builder::~Builder() { |
| 343 | Rec* rec = fRecs; |
| 344 | while (rec) { |
| 345 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 346 | delete rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 347 | rec = next; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | SkPaint* SkLayerDrawLooper::Builder::addLayer(const LayerInfo& info) { |
| 352 | fCount += 1; |
| 353 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 354 | Rec* rec = new Rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 355 | rec->fNext = fRecs; |
| 356 | rec->fInfo = info; |
| 357 | fRecs = rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 358 | if (nullptr == fTopRec) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 359 | fTopRec = rec; |
| 360 | } |
| 361 | |
| 362 | return &rec->fPaint; |
| 363 | } |
| 364 | |
| 365 | void SkLayerDrawLooper::Builder::addLayer(SkScalar dx, SkScalar dy) { |
| 366 | LayerInfo info; |
| 367 | |
| 368 | info.fOffset.set(dx, dy); |
| 369 | (void)this->addLayer(info); |
| 370 | } |
| 371 | |
| 372 | SkPaint* SkLayerDrawLooper::Builder::addLayerOnTop(const LayerInfo& info) { |
| 373 | fCount += 1; |
| 374 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 375 | Rec* rec = new Rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 376 | rec->fNext = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 377 | rec->fInfo = info; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 378 | if (nullptr == fRecs) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 379 | fRecs = rec; |
| 380 | } else { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 381 | SkASSERT(fTopRec); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 382 | fTopRec->fNext = rec; |
| 383 | } |
| 384 | fTopRec = rec; |
| 385 | |
| 386 | return &rec->fPaint; |
| 387 | } |
| 388 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 389 | sk_sp<SkDrawLooper> SkLayerDrawLooper::Builder::detach() { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 390 | SkLayerDrawLooper* looper = new SkLayerDrawLooper; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 391 | looper->fCount = fCount; |
| 392 | looper->fRecs = fRecs; |
| 393 | |
| 394 | fCount = 0; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 395 | fRecs = nullptr; |
| 396 | fTopRec = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 397 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 398 | return sk_sp<SkDrawLooper>(looper); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 399 | } |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 400 | |
| 401 | sk_sp<SkDrawLooper> SkBlurDrawLooper::Make(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy) |
| 402 | { |
| 403 | sk_sp<SkMaskFilter> blur = nullptr; |
| 404 | if (sigma > 0.0f) { |
| 405 | blur = SkBlurMaskFilter::Make(kNormal_SkBlurStyle, sigma, SkBlurMaskFilter::kNone_BlurFlag); |
| 406 | } |
| 407 | |
| 408 | SkLayerDrawLooper::Builder builder; |
| 409 | |
| 410 | // First layer |
| 411 | SkLayerDrawLooper::LayerInfo defaultLayer; |
| 412 | builder.addLayer(defaultLayer); |
| 413 | |
| 414 | // Blur layer |
| 415 | SkLayerDrawLooper::LayerInfo blurInfo; |
| 416 | blurInfo.fColorMode = SkBlendMode::kSrc; |
| 417 | blurInfo.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit; |
| 418 | blurInfo.fOffset = SkVector::Make(dx, dy); |
| 419 | SkPaint* paint = builder.addLayer(blurInfo); |
| 420 | paint->setMaskFilter(std::move(blur)); |
| 421 | paint->setColor(color); |
| 422 | |
| 423 | return builder.detach(); |
| 424 | } |