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" |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 8 | #include "SkBlendModePriv.h" |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 9 | #include "SkBlurDrawLooper.h" |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 10 | #include "SkColorSpacePriv.h" |
Mike Reed | 18e7556 | 2018-03-12 14:03:47 -0400 | [diff] [blame] | 11 | #include "SkMaskFilter.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 12 | #include "SkCanvas.h" |
Matt Sarett | cdc651d | 2017-03-30 12:41:48 -0400 | [diff] [blame] | 13 | #include "SkColorSpaceXformer.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 14 | #include "SkColor.h" |
Mike Reed | 80747ef | 2018-01-23 15:29:32 -0500 | [diff] [blame] | 15 | #include "SkMaskFilterBase.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 16 | #include "SkReadBuffer.h" |
| 17 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | #include "SkLayerDrawLooper.h" |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 19 | #include "SkString.h" |
| 20 | #include "SkStringUtils.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 21 | #include "SkUnPreMultiply.h" |
Mike Reed | 8d3f443 | 2017-06-10 11:08:53 -0400 | [diff] [blame] | 22 | #include "SkXfermodePriv.h" |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 23 | |
| 24 | SkLayerDrawLooper::LayerInfo::LayerInfo() { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 25 | fPaintBits = 0; // ignore our paint fields |
Mike Reed | faba371 | 2016-11-03 14:45:31 -0400 | [diff] [blame] | 26 | fColorMode = SkBlendMode::kDst; // ignore our color |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 27 | fOffset.set(0, 0); |
| 28 | fPostTranslate = false; |
| 29 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 30 | |
vandebo@chromium.org | 3c89818 | 2011-06-22 05:01:28 +0000 | [diff] [blame] | 31 | SkLayerDrawLooper::SkLayerDrawLooper() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 32 | : fRecs(nullptr), |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 33 | fCount(0) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | } |
| 35 | |
| 36 | SkLayerDrawLooper::~SkLayerDrawLooper() { |
| 37 | Rec* rec = fRecs; |
| 38 | while (rec) { |
| 39 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 40 | delete rec; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 41 | rec = next; |
| 42 | } |
| 43 | } |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 44 | |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 45 | SkLayerDrawLooper::Context* |
| 46 | SkLayerDrawLooper::makeContext(SkCanvas* canvas, SkArenaAlloc* alloc) const { |
commit-bot@chromium.org | 091a594 | 2014-04-18 14:19:31 +0000 | [diff] [blame] | 47 | canvas->save(); |
Herb Derby | 73fe7b0 | 2017-02-08 15:12:19 -0500 | [diff] [blame] | 48 | return alloc->make<LayerDrawLooperContext>(this); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 49 | } |
| 50 | |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 51 | static SkColor4f xferColor(const SkColor4f& src, const SkColor4f& dst, SkBlendMode mode) { |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 52 | switch (mode) { |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 53 | case SkBlendMode::kSrc: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 54 | return src; |
Mike Reed | 7d954ad | 2016-10-28 15:42:34 -0400 | [diff] [blame] | 55 | case SkBlendMode::kDst: |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 56 | return dst; |
| 57 | default: { |
Brian Osman | d25b7c1 | 2018-09-21 16:01:59 -0400 | [diff] [blame] | 58 | SkPMColor4f pmS = src.premul(); |
| 59 | SkPMColor4f pmD = dst.premul(); |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 60 | return SkBlendMode_Apply(mode, pmS, pmD).unpremul(); |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 61 | } |
| 62 | } |
| 63 | } |
| 64 | |
reed@google.com | 8426058 | 2011-11-21 16:42:10 +0000 | [diff] [blame] | 65 | // Even with kEntirePaint_Bits, we always ensure that the master paint's |
| 66 | // text-encoding is respected, since that controls how we interpret the |
| 67 | // text/length parameters of a draw[Pos]Text call. |
commit-bot@chromium.org | 79fbb40 | 2014-03-12 09:42:01 +0000 | [diff] [blame] | 68 | void SkLayerDrawLooper::LayerDrawLooperContext::ApplyInfo( |
| 69 | SkPaint* dst, const SkPaint& src, const LayerInfo& info) { |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 70 | SkColor4f srcColor = src.getColor4f(); |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 71 | #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK |
| 72 | // The framework may respect the alpha value on the original paint. |
| 73 | // Match this legacy behavior. |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 74 | if (src.getAlpha() == 255) { |
| 75 | srcColor.fA = dst->getColor4f().fA; |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 76 | } |
| 77 | #endif |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 78 | dst->setColor4f(xferColor(srcColor, dst->getColor4f(), (SkBlendMode)info.fColorMode), |
| 79 | sk_srgb_singleton()); |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 80 | |
| 81 | BitFlags bits = info.fPaintBits; |
reed@google.com | 0716c63 | 2011-04-12 18:32:06 +0000 | [diff] [blame] | 82 | |
mike@reedtribe.org | 3c1225b | 2011-04-09 18:54:08 +0000 | [diff] [blame] | 83 | if (0 == bits) { |
| 84 | return; |
| 85 | } |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 86 | if (kEntirePaint_Bits == bits) { |
mike@reedtribe.org | a8282ef | 2011-04-14 01:22:45 +0000 | [diff] [blame] | 87 | // we've already computed these, so save it from the assignment |
Mike Reed | f738d42 | 2019-01-16 17:12:15 -0500 | [diff] [blame] | 88 | bool aa = dst->isAntiAlias(); |
| 89 | bool di = dst->isDither(); |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 90 | SkColor4f c = dst->getColor4f(); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 91 | *dst = src; |
Mike Reed | f738d42 | 2019-01-16 17:12:15 -0500 | [diff] [blame] | 92 | dst->setAntiAlias(aa); |
| 93 | dst->setDither(di); |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 94 | dst->setColor4f(c, sk_srgb_singleton()); |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 95 | return; |
| 96 | } |
| 97 | |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 98 | if (bits & kStyle_Bit) { |
| 99 | dst->setStyle(src.getStyle()); |
| 100 | dst->setStrokeWidth(src.getStrokeWidth()); |
| 101 | dst->setStrokeMiter(src.getStrokeMiter()); |
| 102 | dst->setStrokeCap(src.getStrokeCap()); |
| 103 | dst->setStrokeJoin(src.getStrokeJoin()); |
| 104 | } |
| 105 | |
mike@reedtribe.org | 0e2810b | 2011-04-08 02:41:54 +0000 | [diff] [blame] | 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 | } |
Mike Reed | 80747ef | 2018-01-23 15:29:32 -0500 | [diff] [blame] | 183 | SkMaskFilterBase::BlurRec maskBlur; |
| 184 | if (!as_MFB(mf)->asABlur(&maskBlur)) { |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 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; |
Brian Osman | 9d1c88d | 2018-09-04 15:16:03 -0400 | [diff] [blame] | 203 | // TODO: Update BlurShadowRec to use SkColor4f? |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 204 | bsRec->fColor = fRecs->fPaint.getColor(); |
| 205 | bsRec->fStyle = maskBlur.fStyle; |
reed@google.com | daaafa6 | 2014-04-29 15:20:16 +0000 | [diff] [blame] | 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(); |
Mike Reed | 31ba6fe | 2019-01-14 17:36:54 -0500 | [diff] [blame] | 273 | buffer.readPaint(builder.addLayerOnTop(info), nullptr); |
Kevin Lubick | daebae9 | 2018-05-17 11:29:10 -0400 | [diff] [blame] | 274 | if (!buffer.isValid()) { |
| 275 | return nullptr; |
| 276 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 277 | } |
reed | 60c9b58 | 2016-04-03 09:11:13 -0700 | [diff] [blame] | 278 | return builder.detach(); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 279 | } |
robertphillips@google.com | 4991b8f | 2013-01-28 20:21:59 +0000 | [diff] [blame] | 280 | |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 281 | SkLayerDrawLooper::Builder::Builder() |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 282 | : fRecs(nullptr), |
| 283 | fTopRec(nullptr), |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 284 | fCount(0) { |
| 285 | } |
| 286 | |
| 287 | SkLayerDrawLooper::Builder::~Builder() { |
| 288 | Rec* rec = fRecs; |
| 289 | while (rec) { |
| 290 | Rec* next = rec->fNext; |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 291 | delete rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 292 | rec = next; |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | SkPaint* SkLayerDrawLooper::Builder::addLayer(const LayerInfo& info) { |
| 297 | fCount += 1; |
| 298 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 299 | Rec* rec = new Rec; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 300 | rec->fNext = fRecs; |
| 301 | rec->fInfo = info; |
| 302 | fRecs = rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 303 | if (nullptr == fTopRec) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 304 | fTopRec = rec; |
| 305 | } |
| 306 | |
| 307 | return &rec->fPaint; |
| 308 | } |
| 309 | |
| 310 | void SkLayerDrawLooper::Builder::addLayer(SkScalar dx, SkScalar dy) { |
| 311 | LayerInfo info; |
| 312 | |
| 313 | info.fOffset.set(dx, dy); |
| 314 | (void)this->addLayer(info); |
| 315 | } |
| 316 | |
| 317 | SkPaint* SkLayerDrawLooper::Builder::addLayerOnTop(const LayerInfo& info) { |
| 318 | fCount += 1; |
| 319 | |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 320 | Rec* rec = new Rec; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 321 | rec->fNext = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 322 | rec->fInfo = info; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 323 | if (nullptr == fRecs) { |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 324 | fRecs = rec; |
| 325 | } else { |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 326 | SkASSERT(fTopRec); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 327 | fTopRec->fNext = rec; |
| 328 | } |
| 329 | fTopRec = rec; |
| 330 | |
| 331 | return &rec->fPaint; |
| 332 | } |
| 333 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 334 | sk_sp<SkDrawLooper> SkLayerDrawLooper::Builder::detach() { |
halcanary | 385fe4d | 2015-08-26 13:07:48 -0700 | [diff] [blame] | 335 | SkLayerDrawLooper* looper = new SkLayerDrawLooper; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 336 | looper->fCount = fCount; |
| 337 | looper->fRecs = fRecs; |
| 338 | |
| 339 | fCount = 0; |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 340 | fRecs = nullptr; |
| 341 | fTopRec = nullptr; |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 342 | |
reed | 7b380d0 | 2016-03-21 13:25:16 -0700 | [diff] [blame] | 343 | return sk_sp<SkDrawLooper>(looper); |
commit-bot@chromium.org | 74ba2f6 | 2014-02-14 10:06:42 +0000 | [diff] [blame] | 344 | } |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 345 | |
| 346 | sk_sp<SkDrawLooper> SkBlurDrawLooper::Make(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy) |
| 347 | { |
Leon Scroggins III | e548161 | 2019-01-09 15:57:34 -0500 | [diff] [blame] | 348 | return Make(SkColor4f::FromColor(color), sk_srgb_singleton(), sigma, dx, dy); |
| 349 | } |
| 350 | |
| 351 | sk_sp<SkDrawLooper> SkBlurDrawLooper::Make(SkColor4f color, SkColorSpace* cs, |
| 352 | SkScalar sigma, SkScalar dx, SkScalar dy) |
| 353 | { |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 354 | sk_sp<SkMaskFilter> blur = nullptr; |
| 355 | if (sigma > 0.0f) { |
Mike Reed | 18e7556 | 2018-03-12 14:03:47 -0400 | [diff] [blame] | 356 | blur = SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, sigma, true); |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | SkLayerDrawLooper::Builder builder; |
| 360 | |
| 361 | // First layer |
| 362 | SkLayerDrawLooper::LayerInfo defaultLayer; |
| 363 | builder.addLayer(defaultLayer); |
| 364 | |
| 365 | // Blur layer |
| 366 | SkLayerDrawLooper::LayerInfo blurInfo; |
| 367 | blurInfo.fColorMode = SkBlendMode::kSrc; |
| 368 | blurInfo.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit; |
| 369 | blurInfo.fOffset = SkVector::Make(dx, dy); |
| 370 | SkPaint* paint = builder.addLayer(blurInfo); |
| 371 | paint->setMaskFilter(std::move(blur)); |
Leon Scroggins III | e548161 | 2019-01-09 15:57:34 -0500 | [diff] [blame] | 372 | paint->setColor4f(color, cs); |
Matt Sarett | 56ea77a | 2017-03-28 15:27:06 -0400 | [diff] [blame] | 373 | |
| 374 | return builder.detach(); |
| 375 | } |