1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you mPrimitiveFields.may not use this file except in compliance with the License.
6 * You mPrimitiveFields.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 "RenderProperties.h"
18
19 #include <utils/Trace.h>
20
21 #include <SkColorFilter.h>
22 #include <SkMatrix.h>
23 #include <SkPath.h>
24 #include <SkPathOps.h>
25
26 #include "Matrix.h"
27 #include "hwui/Canvas.h"
28 #include "utils/MathUtils.h"
29
30 namespace android {
31 namespace uirenderer {
32
LayerProperties()33 LayerProperties::LayerProperties() {
34 reset();
35 }
36
~LayerProperties()37 LayerProperties::~LayerProperties() {
38 setType(LayerType::None);
39 }
40
reset()41 void LayerProperties::reset() {
42 mOpaque = false;
43 setFromPaint(nullptr);
44 }
45
setColorFilter(SkColorFilter * filter)46 bool LayerProperties::setColorFilter(SkColorFilter* filter) {
47 if (mColorFilter == filter) return false;
48 SkRefCnt_SafeAssign(mColorFilter, filter);
49 return true;
50 }
51
setFromPaint(const SkPaint * paint)52 bool LayerProperties::setFromPaint(const SkPaint* paint) {
53 bool changed = false;
54 changed |= setAlpha(static_cast<uint8_t>(PaintUtils::getAlphaDirect(paint)));
55 changed |= setXferMode(PaintUtils::getBlendModeDirect(paint));
56 changed |= setColorFilter(paint ? paint->getColorFilter() : nullptr);
57 return changed;
58 }
59
operator =(const LayerProperties & other)60 LayerProperties& LayerProperties::operator=(const LayerProperties& other) {
61 setType(other.type());
62 setOpaque(other.opaque());
63 setAlpha(other.alpha());
64 setXferMode(other.xferMode());
65 setColorFilter(other.colorFilter());
66 return *this;
67 }
68
ComputedFields()69 RenderProperties::ComputedFields::ComputedFields()
70 : mTransformMatrix(nullptr) {
71 }
72
~ComputedFields()73 RenderProperties::ComputedFields::~ComputedFields() {
74 delete mTransformMatrix;
75 }
76
RenderProperties()77 RenderProperties::RenderProperties()
78 : mStaticMatrix(nullptr)
79 , mAnimationMatrix(nullptr) {
80 }
81
~RenderProperties()82 RenderProperties::~RenderProperties() {
83 delete mStaticMatrix;
84 delete mAnimationMatrix;
85 }
86
operator =(const RenderProperties & other)87 RenderProperties& RenderProperties::operator=(const RenderProperties& other) {
88 if (this != &other) {
89 mPrimitiveFields = other.mPrimitiveFields;
90 setStaticMatrix(other.getStaticMatrix());
91 setAnimationMatrix(other.getAnimationMatrix());
92 setCameraDistance(other.getCameraDistance());
93 mLayerProperties = other.layerProperties();
94
95 // Force recalculation of the matrix, since other's dirty bit may be clear
96 mPrimitiveFields.mMatrixOrPivotDirty = true;
97 updateMatrix();
98 }
99 return *this;
100 }
101
dumpMatrix(std::ostream & output,std::string & indent,const char * label,SkMatrix * matrix)102 static void dumpMatrix(std::ostream& output, std::string& indent,
103 const char* label, SkMatrix* matrix) {
104 if (matrix) {
105 output << indent << "(" << label << " " << matrix << ": ";
106 output << std::fixed << std::setprecision(2);
107 output << "[" << matrix->get(0) << " "<< matrix->get(1) << " " << matrix->get(2) << "]";
108 output << " [" << matrix->get(3) << " "<< matrix->get(4) << " " << matrix->get(5) << "]";
109 output << " [" << matrix->get(6) << " "<< matrix->get(7) << " " << matrix->get(8) << "]";
110 output << ")" << std::endl;
111 }
112 }
113
debugOutputProperties(std::ostream & output,const int level) const114 void RenderProperties::debugOutputProperties(std::ostream& output, const int level) const {
115 auto indent = std::string(level * 2, ' ');
116 if (mPrimitiveFields.mLeft != 0 || mPrimitiveFields.mTop != 0) {
117 output << indent << "(Translate (left, top) " << mPrimitiveFields.mLeft
118 << ", " << mPrimitiveFields.mTop << ")" << std::endl;
119 }
120 dumpMatrix(output, indent, "ConcatMatrix (static)", mStaticMatrix);
121 dumpMatrix(output, indent, "ConcatMatrix (animation)", mAnimationMatrix);
122
123 output << std::fixed << std::setprecision(2);
124 if (hasTransformMatrix()) {
125 if (isTransformTranslateOnly()) {
126 output << indent << "(Translate " << getTranslationX() << ", " << getTranslationY()
127 << ", " << getZ() << ")" << std::endl;
128 } else {
129 dumpMatrix(output, indent, "ConcatMatrix ", mComputedFields.mTransformMatrix);
130 }
131 }
132
133 const bool isLayer = effectiveLayerType() != LayerType::None;
134 int clipFlags = getClippingFlags();
135 if (mPrimitiveFields.mAlpha < 1
136 && !MathUtils::isZero(mPrimitiveFields.mAlpha)) {
137 if (isLayer) {
138 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
139 }
140
141 if (CC_LIKELY(isLayer || !getHasOverlappingRendering())) {
142 // simply scale rendering content's alpha
143 output << indent << "(ScaleAlpha " << mPrimitiveFields.mAlpha << ")" << std::endl;
144 } else {
145 // savelayeralpha to create an offscreen buffer to apply alpha
146 Rect layerBounds(0, 0, getWidth(), getHeight());
147 if (clipFlags) {
148 getClippingRectForFlags(clipFlags, &layerBounds);
149 clipFlags = 0; // all clipping done by savelayer
150 }
151 output << indent << "(SaveLayerAlpha "
152 << (int)layerBounds.left << ", " << (int)layerBounds.top << ", "
153 << (int)layerBounds.right << ", " << (int)layerBounds.bottom << ", "
154 << (int)(mPrimitiveFields.mAlpha * 255) << ", 0x" << std::hex
155 << (SaveFlags::HasAlphaLayer | SaveFlags::ClipToLayer) << ")" << std::dec
156 << std::endl;
157 }
158 }
159
160 if (clipFlags) {
161 Rect clipRect;
162 getClippingRectForFlags(clipFlags, &clipRect);
163 output << indent << "(ClipRect "
164 << (int)clipRect.left << ", " << (int)clipRect.top << ", "
165 << (int)clipRect.right << ", " << (int)clipRect.bottom << ")" << std::endl;
166 }
167
168 if (getRevealClip().willClip()) {
169 Rect bounds;
170 getRevealClip().getBounds(&bounds);
171 output << indent << "(Clip to reveal clip with bounds "
172 << bounds.left << ", " << bounds.top << ", "
173 << bounds.right << ", " << bounds.bottom << ")" << std::endl;
174 }
175
176 auto& outline = mPrimitiveFields.mOutline;
177 if (outline.getShouldClip()) {
178 if (outline.isEmpty()) {
179 output << indent << "(Clip to empty outline)";
180 } else if (outline.willClip()) {
181 const Rect& bounds = outline.getBounds();
182 output << indent << "(Clip to outline with bounds "
183 << bounds.left << ", " << bounds.top << ", "
184 << bounds.right << ", " << bounds.bottom << ")" << std::endl;
185 }
186 }
187 }
188
updateMatrix()189 void RenderProperties::updateMatrix() {
190 if (mPrimitiveFields.mMatrixOrPivotDirty) {
191 if (!mComputedFields.mTransformMatrix) {
192 // only allocate a mPrimitiveFields.matrix if we have a complex transform
193 mComputedFields.mTransformMatrix = new SkMatrix();
194 }
195 if (!mPrimitiveFields.mPivotExplicitlySet) {
196 mPrimitiveFields.mPivotX = mPrimitiveFields.mWidth / 2.0f;
197 mPrimitiveFields.mPivotY = mPrimitiveFields.mHeight / 2.0f;
198 }
199 SkMatrix* transform = mComputedFields.mTransformMatrix;
200 transform->reset();
201 if (MathUtils::isZero(getRotationX()) && MathUtils::isZero(getRotationY())) {
202 transform->setTranslate(getTranslationX(), getTranslationY());
203 transform->preRotate(getRotation(), getPivotX(), getPivotY());
204 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY());
205 } else {
206 SkMatrix transform3D;
207 mComputedFields.mTransformCamera.save();
208 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY());
209 mComputedFields.mTransformCamera.rotateX(mPrimitiveFields.mRotationX);
210 mComputedFields.mTransformCamera.rotateY(mPrimitiveFields.mRotationY);
211 mComputedFields.mTransformCamera.rotateZ(-mPrimitiveFields.mRotation);
212 mComputedFields.mTransformCamera.getMatrix(&transform3D);
213 transform3D.preTranslate(-getPivotX(), -getPivotY());
214 transform3D.postTranslate(getPivotX() + getTranslationX(),
215 getPivotY() + getTranslationY());
216 transform->postConcat(transform3D);
217 mComputedFields.mTransformCamera.restore();
218 }
219 mPrimitiveFields.mMatrixOrPivotDirty = false;
220 }
221 }
222
223 } /* namespace uirenderer */
224 } /* namespace android */
225