Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "VectorDrawable.h" |
| 18 | |
| 19 | #include "PathParser.h" |
| 20 | #include "SkImageInfo.h" |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 21 | #include "SkShader.h" |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 22 | #include <utils/Log.h> |
| 23 | #include "utils/Macros.h" |
| 24 | #include "utils/VectorDrawableUtils.h" |
| 25 | |
| 26 | #include <math.h> |
| 27 | #include <string.h> |
| 28 | |
| 29 | namespace android { |
| 30 | namespace uirenderer { |
| 31 | namespace VectorDrawable { |
| 32 | |
| 33 | const int Tree::MAX_CACHED_BITMAP_SIZE = 2048; |
| 34 | |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 35 | void Path::draw(SkCanvas* outCanvas, const SkMatrix& groupStackedMatrix, float scaleX, float scaleY) { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 36 | float matrixScale = getMatrixScale(groupStackedMatrix); |
| 37 | if (matrixScale == 0) { |
| 38 | // When either x or y is scaled to 0, we don't need to draw anything. |
| 39 | return; |
| 40 | } |
| 41 | |
| 42 | const SkPath updatedPath = getUpdatedPath(); |
| 43 | SkMatrix pathMatrix(groupStackedMatrix); |
| 44 | pathMatrix.postScale(scaleX, scaleY); |
| 45 | |
| 46 | //TODO: try apply the path matrix to the canvas instead of creating a new path. |
| 47 | SkPath renderPath; |
| 48 | renderPath.reset(); |
| 49 | renderPath.addPath(updatedPath, pathMatrix); |
| 50 | |
| 51 | float minScale = fmin(scaleX, scaleY); |
| 52 | float strokeScale = minScale * matrixScale; |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 53 | drawPath(outCanvas, renderPath, strokeScale, pathMatrix); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | void Path::setPathData(const Data& data) { |
| 57 | if (mData == data) { |
| 58 | return; |
| 59 | } |
| 60 | // Updates the path data. Note that we don't generate a new Skia path right away |
| 61 | // because there are cases where the animation is changing the path data, but the view |
| 62 | // that hosts the VD has gone off screen, in which case we won't even draw. So we |
| 63 | // postpone the Skia path generation to the draw time. |
| 64 | mData = data; |
| 65 | mSkPathDirty = true; |
| 66 | } |
| 67 | |
| 68 | void Path::dump() { |
| 69 | ALOGD("Path: %s has %zu points", mName.c_str(), mData.points.size()); |
| 70 | } |
| 71 | |
| 72 | float Path::getMatrixScale(const SkMatrix& groupStackedMatrix) { |
| 73 | // Given unit vectors A = (0, 1) and B = (1, 0). |
| 74 | // After matrix mapping, we got A' and B'. Let theta = the angel b/t A' and B'. |
| 75 | // Therefore, the final scale we want is min(|A'| * sin(theta), |B'| * sin(theta)), |
| 76 | // which is (|A'| * |B'| * sin(theta)) / max (|A'|, |B'|); |
| 77 | // If max (|A'|, |B'|) = 0, that means either x or y has a scale of 0. |
| 78 | // |
| 79 | // For non-skew case, which is most of the cases, matrix scale is computing exactly the |
| 80 | // scale on x and y axis, and take the minimal of these two. |
| 81 | // For skew case, an unit square will mapped to a parallelogram. And this function will |
| 82 | // return the minimal height of the 2 bases. |
| 83 | SkVector skVectors[2]; |
| 84 | skVectors[0].set(0, 1); |
| 85 | skVectors[1].set(1, 0); |
| 86 | groupStackedMatrix.mapVectors(skVectors, 2); |
| 87 | float scaleX = hypotf(skVectors[0].fX, skVectors[0].fY); |
| 88 | float scaleY = hypotf(skVectors[1].fX, skVectors[1].fY); |
| 89 | float crossProduct = skVectors[0].cross(skVectors[1]); |
| 90 | float maxScale = fmax(scaleX, scaleY); |
| 91 | |
| 92 | float matrixScale = 0; |
| 93 | if (maxScale > 0) { |
| 94 | matrixScale = fabs(crossProduct) / maxScale; |
| 95 | } |
| 96 | return matrixScale; |
| 97 | } |
| 98 | Path::Path(const char* pathStr, size_t strLength) { |
| 99 | PathParser::ParseResult result; |
| 100 | PathParser::getPathDataFromString(&mData, &result, pathStr, strLength); |
| 101 | if (!result.failureOccurred) { |
| 102 | VectorDrawableUtils::verbsToPath(&mSkPath, mData); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | Path::Path(const Data& data) { |
| 107 | mData = data; |
| 108 | // Now we need to construct a path |
| 109 | VectorDrawableUtils::verbsToPath(&mSkPath, data); |
| 110 | } |
| 111 | |
| 112 | Path::Path(const Path& path) : Node(path) { |
| 113 | mData = path.mData; |
| 114 | VectorDrawableUtils::verbsToPath(&mSkPath, mData); |
| 115 | } |
| 116 | |
| 117 | bool Path::canMorph(const Data& morphTo) { |
| 118 | return VectorDrawableUtils::canMorph(mData, morphTo); |
| 119 | } |
| 120 | |
| 121 | bool Path::canMorph(const Path& path) { |
| 122 | return canMorph(path.mData); |
| 123 | } |
| 124 | |
| 125 | const SkPath& Path::getUpdatedPath() { |
| 126 | if (mSkPathDirty) { |
| 127 | mSkPath.reset(); |
| 128 | VectorDrawableUtils::verbsToPath(&mSkPath, mData); |
| 129 | mSkPathDirty = false; |
| 130 | } |
| 131 | return mSkPath; |
| 132 | } |
| 133 | |
| 134 | void Path::setPath(const char* pathStr, size_t strLength) { |
| 135 | PathParser::ParseResult result; |
| 136 | mSkPathDirty = true; |
| 137 | PathParser::getPathDataFromString(&mData, &result, pathStr, strLength); |
| 138 | } |
| 139 | |
| 140 | FullPath::FullPath(const FullPath& path) : Path(path) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 141 | mProperties = path.mProperties; |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 142 | SkRefCnt_SafeAssign(mStrokeGradient, path.mStrokeGradient); |
| 143 | SkRefCnt_SafeAssign(mFillGradient, path.mFillGradient); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | const SkPath& FullPath::getUpdatedPath() { |
| 147 | if (!mSkPathDirty && !mTrimDirty) { |
| 148 | return mTrimmedSkPath; |
| 149 | } |
| 150 | Path::getUpdatedPath(); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 151 | if (mProperties.trimPathStart != 0.0f || mProperties.trimPathEnd != 1.0f) { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 152 | applyTrim(); |
| 153 | return mTrimmedSkPath; |
| 154 | } else { |
| 155 | return mSkPath; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | void FullPath::updateProperties(float strokeWidth, SkColor strokeColor, float strokeAlpha, |
| 160 | SkColor fillColor, float fillAlpha, float trimPathStart, float trimPathEnd, |
| 161 | float trimPathOffset, float strokeMiterLimit, int strokeLineCap, int strokeLineJoin) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 162 | mProperties.strokeWidth = strokeWidth; |
| 163 | mProperties.strokeColor = strokeColor; |
| 164 | mProperties.strokeAlpha = strokeAlpha; |
| 165 | mProperties.fillColor = fillColor; |
| 166 | mProperties.fillAlpha = fillAlpha; |
| 167 | mProperties.strokeMiterLimit = strokeMiterLimit; |
| 168 | mProperties.strokeLineCap = strokeLineCap; |
| 169 | mProperties.strokeLineJoin = strokeLineJoin; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 170 | |
| 171 | // If any trim property changes, mark trim dirty and update the trim path |
| 172 | setTrimPathStart(trimPathStart); |
| 173 | setTrimPathEnd(trimPathEnd); |
| 174 | setTrimPathOffset(trimPathOffset); |
| 175 | } |
| 176 | |
| 177 | inline SkColor applyAlpha(SkColor color, float alpha) { |
| 178 | int alphaBytes = SkColorGetA(color); |
| 179 | return SkColorSetA(color, alphaBytes * alpha); |
| 180 | } |
| 181 | |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 182 | void FullPath::drawPath(SkCanvas* outCanvas, const SkPath& renderPath, float strokeScale, |
| 183 | const SkMatrix& matrix){ |
| 184 | // Draw path's fill, if fill color or gradient is valid |
| 185 | bool needsFill = false; |
| 186 | if (mFillGradient != nullptr) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 187 | mPaint.setColor(applyAlpha(SK_ColorBLACK, mProperties.fillAlpha)); |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 188 | SkShader* newShader = mFillGradient->newWithLocalMatrix(matrix); |
| 189 | mPaint.setShader(newShader); |
| 190 | needsFill = true; |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 191 | } else if (mProperties.fillColor != SK_ColorTRANSPARENT) { |
| 192 | mPaint.setColor(applyAlpha(mProperties.fillColor, mProperties.fillAlpha)); |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 193 | needsFill = true; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 194 | } |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 195 | |
| 196 | if (needsFill) { |
| 197 | mPaint.setStyle(SkPaint::Style::kFill_Style); |
| 198 | mPaint.setAntiAlias(true); |
| 199 | outCanvas->drawPath(renderPath, mPaint); |
| 200 | } |
| 201 | |
| 202 | // Draw path's stroke, if stroke color or gradient is valid |
| 203 | bool needsStroke = false; |
| 204 | if (mStrokeGradient != nullptr) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 205 | mPaint.setColor(applyAlpha(SK_ColorBLACK, mProperties.strokeAlpha)); |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 206 | SkShader* newShader = mStrokeGradient->newWithLocalMatrix(matrix); |
| 207 | mPaint.setShader(newShader); |
| 208 | needsStroke = true; |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 209 | } else if (mProperties.strokeColor != SK_ColorTRANSPARENT) { |
| 210 | mPaint.setColor(applyAlpha(mProperties.strokeColor, mProperties.strokeAlpha)); |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 211 | needsStroke = true; |
| 212 | } |
| 213 | if (needsStroke) { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 214 | mPaint.setStyle(SkPaint::Style::kStroke_Style); |
| 215 | mPaint.setAntiAlias(true); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 216 | mPaint.setStrokeJoin(SkPaint::Join(mProperties.strokeLineJoin)); |
| 217 | mPaint.setStrokeCap(SkPaint::Cap(mProperties.strokeLineCap)); |
| 218 | mPaint.setStrokeMiter(mProperties.strokeMiterLimit); |
| 219 | mPaint.setStrokeWidth(mProperties.strokeWidth * strokeScale); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 220 | outCanvas->drawPath(renderPath, mPaint); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Applies trimming to the specified path. |
| 226 | */ |
| 227 | void FullPath::applyTrim() { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 228 | if (mProperties.trimPathStart == 0.0f && mProperties.trimPathEnd == 1.0f) { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 229 | // No trimming necessary. |
| 230 | return; |
| 231 | } |
| 232 | SkPathMeasure measure(mSkPath, false); |
| 233 | float len = SkScalarToFloat(measure.getLength()); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 234 | float start = len * fmod((mProperties.trimPathStart + mProperties.trimPathOffset), 1.0f); |
| 235 | float end = len * fmod((mProperties.trimPathEnd + mProperties.trimPathOffset), 1.0f); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 236 | |
| 237 | mTrimmedSkPath.reset(); |
| 238 | if (start > end) { |
| 239 | measure.getSegment(start, len, &mTrimmedSkPath, true); |
| 240 | measure.getSegment(0, end, &mTrimmedSkPath, true); |
| 241 | } else { |
| 242 | measure.getSegment(start, end, &mTrimmedSkPath, true); |
| 243 | } |
| 244 | mTrimDirty = false; |
| 245 | } |
| 246 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 247 | REQUIRE_COMPATIBLE_LAYOUT(FullPath::Properties); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 248 | |
| 249 | static_assert(sizeof(float) == sizeof(int32_t), "float is not the same size as int32_t"); |
| 250 | static_assert(sizeof(SkColor) == sizeof(int32_t), "SkColor is not the same size as int32_t"); |
| 251 | |
| 252 | bool FullPath::getProperties(int8_t* outProperties, int length) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 253 | int propertyDataSize = sizeof(Properties); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 254 | if (length != propertyDataSize) { |
| 255 | LOG_ALWAYS_FATAL("Properties needs exactly %d bytes, a byte array of size %d is provided", |
| 256 | propertyDataSize, length); |
| 257 | return false; |
| 258 | } |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 259 | Properties* out = reinterpret_cast<Properties*>(outProperties); |
| 260 | *out = mProperties; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 261 | return true; |
| 262 | } |
| 263 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 264 | void FullPath::setColorPropertyValue(int propertyId, int32_t value) { |
| 265 | Property currentProperty = static_cast<Property>(propertyId); |
| 266 | if (currentProperty == Property::StrokeColor) { |
| 267 | mProperties.strokeColor = value; |
| 268 | } else if (currentProperty == Property::FillColor) { |
| 269 | mProperties.fillColor = value; |
| 270 | } else { |
| 271 | LOG_ALWAYS_FATAL("Error setting color property on FullPath: No valid property with id: %d", |
| 272 | propertyId); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | void FullPath::setPropertyValue(int propertyId, float value) { |
| 277 | Property property = static_cast<Property>(propertyId); |
| 278 | switch (property) { |
| 279 | case Property::StrokeWidth: |
| 280 | setStrokeWidth(value); |
| 281 | break; |
| 282 | case Property::StrokeAlpha: |
| 283 | setStrokeAlpha(value); |
| 284 | break; |
| 285 | case Property::FillAlpha: |
| 286 | setFillAlpha(value); |
| 287 | break; |
| 288 | case Property::TrimPathStart: |
| 289 | setTrimPathStart(value); |
| 290 | break; |
| 291 | case Property::TrimPathEnd: |
| 292 | setTrimPathEnd(value); |
| 293 | break; |
| 294 | case Property::TrimPathOffset: |
| 295 | setTrimPathOffset(value); |
| 296 | break; |
| 297 | default: |
| 298 | LOG_ALWAYS_FATAL("Invalid property id: %d for animation", propertyId); |
| 299 | break; |
| 300 | } |
| 301 | } |
| 302 | |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 303 | void ClipPath::drawPath(SkCanvas* outCanvas, const SkPath& renderPath, |
Teng-Hui Zhu | dbee9bb | 2015-12-15 11:01:27 -0800 | [diff] [blame] | 304 | float strokeScale, const SkMatrix& matrix){ |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 305 | outCanvas->clipPath(renderPath, SkRegion::kIntersect_Op); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | Group::Group(const Group& group) : Node(group) { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 309 | mProperties = group.mProperties; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 310 | } |
| 311 | |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 312 | void Group::draw(SkCanvas* outCanvas, const SkMatrix& currentMatrix, float scaleX, |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 313 | float scaleY) { |
| 314 | // TODO: Try apply the matrix to the canvas instead of passing it down the tree |
| 315 | |
| 316 | // Calculate current group's matrix by preConcat the parent's and |
| 317 | // and the current one on the top of the stack. |
| 318 | // Basically the Mfinal = Mviewport * M0 * M1 * M2; |
| 319 | // Mi the local matrix at level i of the group tree. |
| 320 | SkMatrix stackedMatrix; |
| 321 | getLocalMatrix(&stackedMatrix); |
| 322 | stackedMatrix.postConcat(currentMatrix); |
| 323 | |
| 324 | // Save the current clip information, which is local to this group. |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 325 | outCanvas->save(); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 326 | // Draw the group tree in the same order as the XML file. |
| 327 | for (Node* child : mChildren) { |
| 328 | child->draw(outCanvas, stackedMatrix, scaleX, scaleY); |
| 329 | } |
| 330 | // Restore the previous clip information. |
| 331 | outCanvas->restore(); |
| 332 | } |
| 333 | |
| 334 | void Group::dump() { |
| 335 | ALOGD("Group %s has %zu children: ", mName.c_str(), mChildren.size()); |
| 336 | for (size_t i = 0; i < mChildren.size(); i++) { |
| 337 | mChildren[i]->dump(); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | void Group::updateLocalMatrix(float rotate, float pivotX, float pivotY, |
| 342 | float scaleX, float scaleY, float translateX, float translateY) { |
| 343 | setRotation(rotate); |
| 344 | setPivotX(pivotX); |
| 345 | setPivotY(pivotY); |
| 346 | setScaleX(scaleX); |
| 347 | setScaleY(scaleY); |
| 348 | setTranslateX(translateX); |
| 349 | setTranslateY(translateY); |
| 350 | } |
| 351 | |
| 352 | void Group::getLocalMatrix(SkMatrix* outMatrix) { |
| 353 | outMatrix->reset(); |
| 354 | // TODO: use rotate(mRotate, mPivotX, mPivotY) and scale with pivot point, instead of |
| 355 | // translating to pivot for rotating and scaling, then translating back. |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 356 | outMatrix->postTranslate(-mProperties.pivotX, -mProperties.pivotY); |
| 357 | outMatrix->postScale(mProperties.scaleX, mProperties.scaleY); |
| 358 | outMatrix->postRotate(mProperties.rotate, 0, 0); |
| 359 | outMatrix->postTranslate(mProperties.translateX + mProperties.pivotX, |
| 360 | mProperties.translateY + mProperties.pivotY); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | void Group::addChild(Node* child) { |
| 364 | mChildren.push_back(child); |
| 365 | } |
| 366 | |
| 367 | bool Group::getProperties(float* outProperties, int length) { |
| 368 | int propertyCount = static_cast<int>(Property::Count); |
| 369 | if (length != propertyCount) { |
| 370 | LOG_ALWAYS_FATAL("Properties needs exactly %d bytes, a byte array of size %d is provided", |
| 371 | propertyCount, length); |
| 372 | return false; |
| 373 | } |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 374 | Properties* out = reinterpret_cast<Properties*>(outProperties); |
| 375 | *out = mProperties; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 376 | return true; |
| 377 | } |
| 378 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 379 | // TODO: Consider animating the properties as float pointers |
| 380 | float Group::getPropertyValue(int propertyId) const { |
| 381 | Property currentProperty = static_cast<Property>(propertyId); |
| 382 | switch (currentProperty) { |
| 383 | case Property::Rotate: |
| 384 | return mProperties.rotate; |
| 385 | case Property::PivotX: |
| 386 | return mProperties.pivotX; |
| 387 | case Property::PivotY: |
| 388 | return mProperties.pivotY; |
| 389 | case Property::ScaleX: |
| 390 | return mProperties.scaleX; |
| 391 | case Property::ScaleY: |
| 392 | return mProperties.scaleY; |
| 393 | case Property::TranslateX: |
| 394 | return mProperties.translateX; |
| 395 | case Property::TranslateY: |
| 396 | return mProperties.translateY; |
| 397 | default: |
| 398 | LOG_ALWAYS_FATAL("Invalid property index: %d", propertyId); |
| 399 | return 0; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | void Group::setPropertyValue(int propertyId, float value) { |
| 404 | Property currentProperty = static_cast<Property>(propertyId); |
| 405 | switch (currentProperty) { |
| 406 | case Property::Rotate: |
| 407 | mProperties.rotate = value; |
| 408 | break; |
| 409 | case Property::PivotX: |
| 410 | mProperties.pivotX = value; |
| 411 | break; |
| 412 | case Property::PivotY: |
| 413 | mProperties.pivotY = value; |
| 414 | break; |
| 415 | case Property::ScaleX: |
| 416 | mProperties.scaleX = value; |
| 417 | break; |
| 418 | case Property::ScaleY: |
| 419 | mProperties.scaleY = value; |
| 420 | break; |
| 421 | case Property::TranslateX: |
| 422 | mProperties.translateX = value; |
| 423 | break; |
| 424 | case Property::TranslateY: |
| 425 | mProperties.translateY = value; |
| 426 | break; |
| 427 | default: |
| 428 | LOG_ALWAYS_FATAL("Invalid property index: %d", propertyId); |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | bool Group::isValidProperty(int propertyId) { |
| 433 | return propertyId >= 0 && propertyId < static_cast<int>(Property::Count); |
| 434 | } |
| 435 | |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 436 | void Tree::draw(Canvas* outCanvas, SkColorFilter* colorFilter, |
| 437 | const SkRect& bounds, bool needsMirroring, bool canReuseCache) { |
| 438 | // The imageView can scale the canvas in different ways, in order to |
| 439 | // avoid blurry scaling, we have to draw into a bitmap with exact pixel |
| 440 | // size first. This bitmap size is determined by the bounds and the |
| 441 | // canvas scale. |
| 442 | outCanvas->getMatrix(&mCanvasMatrix); |
| 443 | mBounds = bounds; |
Doris Liu | a0e6157 | 2015-12-29 14:57:49 -0800 | [diff] [blame] | 444 | float canvasScaleX = 1.0f; |
| 445 | float canvasScaleY = 1.0f; |
| 446 | if (mCanvasMatrix.getSkewX() == 0 && mCanvasMatrix.getSkewY() == 0) { |
| 447 | // Only use the scale value when there's no skew or rotation in the canvas matrix. |
Doris Liu | e410a35 | 2016-01-13 17:23:33 -0800 | [diff] [blame] | 448 | // TODO: Add a cts test for drawing VD on a canvas with negative scaling factors. |
| 449 | canvasScaleX = fabs(mCanvasMatrix.getScaleX()); |
| 450 | canvasScaleY = fabs(mCanvasMatrix.getScaleY()); |
Doris Liu | a0e6157 | 2015-12-29 14:57:49 -0800 | [diff] [blame] | 451 | } |
| 452 | int scaledWidth = (int) (mBounds.width() * canvasScaleX); |
| 453 | int scaledHeight = (int) (mBounds.height() * canvasScaleY); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 454 | scaledWidth = std::min(Tree::MAX_CACHED_BITMAP_SIZE, scaledWidth); |
| 455 | scaledHeight = std::min(Tree::MAX_CACHED_BITMAP_SIZE, scaledHeight); |
| 456 | |
| 457 | if (scaledWidth <= 0 || scaledHeight <= 0) { |
| 458 | return; |
| 459 | } |
| 460 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 461 | mPaint.setColorFilter(colorFilter); |
| 462 | |
Florin Malita | 777bf85 | 2016-02-03 10:48:55 -0500 | [diff] [blame] | 463 | int saveCount = outCanvas->save(SaveFlags::MatrixClip); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 464 | outCanvas->translate(mBounds.fLeft, mBounds.fTop); |
| 465 | |
| 466 | // Handle RTL mirroring. |
| 467 | if (needsMirroring) { |
| 468 | outCanvas->translate(mBounds.width(), 0); |
| 469 | outCanvas->scale(-1.0f, 1.0f); |
| 470 | } |
| 471 | |
| 472 | // At this point, canvas has been translated to the right position. |
| 473 | // And we use this bound for the destination rect for the drawBitmap, so |
| 474 | // we offset to (0, 0); |
| 475 | mBounds.offsetTo(0, 0); |
Doris Liu | 5a11e8d | 2016-02-04 20:04:10 +0000 | [diff] [blame] | 476 | createCachedBitmapIfNeeded(scaledWidth, scaledHeight); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 477 | |
| 478 | outCanvas->drawVectorDrawable(this); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 479 | |
| 480 | outCanvas->restoreToCount(saveCount); |
| 481 | } |
| 482 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 483 | SkPaint* Tree::getPaint() { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 484 | SkPaint* paint; |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 485 | if (mRootAlpha == 1.0f && mPaint.getColorFilter() == NULL) { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 486 | paint = NULL; |
| 487 | } else { |
| 488 | mPaint.setFilterQuality(kLow_SkFilterQuality); |
| 489 | mPaint.setAlpha(mRootAlpha * 255); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 490 | paint = &mPaint; |
| 491 | } |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 492 | return paint; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 493 | } |
| 494 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 495 | const SkBitmap& Tree::getBitmapUpdateIfDirty() { |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 496 | mCachedBitmap.eraseColor(SK_ColorTRANSPARENT); |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 497 | SkCanvas outCanvas(mCachedBitmap); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 498 | float scaleX = (float) mCachedBitmap.width() / mViewportWidth; |
| 499 | float scaleY = (float) mCachedBitmap.height() / mViewportHeight; |
Doris Liu | c2de46f | 2016-01-21 12:55:54 -0800 | [diff] [blame] | 500 | mRootNode->draw(&outCanvas, SkMatrix::I(), scaleX, scaleY); |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 501 | mCacheDirty = false; |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame^] | 502 | return mCachedBitmap; |
Doris Liu | 4bbc293 | 2015-12-01 17:59:40 -0800 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | void Tree::createCachedBitmapIfNeeded(int width, int height) { |
| 506 | if (!canReuseBitmap(width, height)) { |
| 507 | SkImageInfo info = SkImageInfo::Make(width, height, |
| 508 | kN32_SkColorType, kPremul_SkAlphaType); |
| 509 | mCachedBitmap.setInfo(info); |
| 510 | // TODO: Count the bitmap cache against app's java heap |
| 511 | mCachedBitmap.allocPixels(info); |
| 512 | mCacheDirty = true; |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | bool Tree::canReuseBitmap(int width, int height) { |
| 517 | return width == mCachedBitmap.width() && height == mCachedBitmap.height(); |
| 518 | } |
| 519 | |
| 520 | }; // namespace VectorDrawable |
| 521 | |
| 522 | }; // namespace uirenderer |
| 523 | }; // namespace android |