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.get() == filter) return false;
48 mColorFilter = sk_ref_sp(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.getColorFilter());
66 return *this;
67 }
68
ComputedFields()69 RenderProperties::ComputedFields::ComputedFields() : mTransformMatrix(nullptr) {}
70
~ComputedFields()71 RenderProperties::ComputedFields::~ComputedFields() {
72 delete mTransformMatrix;
73 }
74
RenderProperties()75 RenderProperties::RenderProperties() : mStaticMatrix(nullptr), mAnimationMatrix(nullptr) {}
76
~RenderProperties()77 RenderProperties::~RenderProperties() {
78 delete mStaticMatrix;
79 delete mAnimationMatrix;
80 }
81
operator =(const RenderProperties & other)82 RenderProperties& RenderProperties::operator=(const RenderProperties& other) {
83 if (this != &other) {
84 mPrimitiveFields = other.mPrimitiveFields;
85 setStaticMatrix(other.getStaticMatrix());
86 setAnimationMatrix(other.getAnimationMatrix());
87 setCameraDistance(other.getCameraDistance());
88 mLayerProperties = other.layerProperties();
89
90 // Force recalculation of the matrix, since other's dirty bit may be clear
91 mPrimitiveFields.mMatrixOrPivotDirty = true;
92 updateMatrix();
93 }
94 return *this;
95 }
96
dumpMatrix(std::ostream & output,std::string & indent,const char * label,SkMatrix * matrix)97 static void dumpMatrix(std::ostream& output, std::string& indent, const char* label,
98 SkMatrix* matrix) {
99 if (matrix) {
100 output << indent << "(" << label << " " << matrix << ": ";
101 output << std::fixed << std::setprecision(2);
102 output << "[" << matrix->get(0) << " " << matrix->get(1) << " " << matrix->get(2) << "]";
103 output << " [" << matrix->get(3) << " " << matrix->get(4) << " " << matrix->get(5) << "]";
104 output << " [" << matrix->get(6) << " " << matrix->get(7) << " " << matrix->get(8) << "]";
105 output << ")" << std::endl;
106 }
107 }
108
debugOutputProperties(std::ostream & output,const int level) const109 void RenderProperties::debugOutputProperties(std::ostream& output, const int level) const {
110 auto indent = std::string(level * 2, ' ');
111 if (mPrimitiveFields.mLeft != 0 || mPrimitiveFields.mTop != 0) {
112 output << indent << "(Translate (left, top) " << mPrimitiveFields.mLeft << ", "
113 << mPrimitiveFields.mTop << ")" << std::endl;
114 }
115 dumpMatrix(output, indent, "ConcatMatrix (static)", mStaticMatrix);
116 dumpMatrix(output, indent, "ConcatMatrix (animation)", mAnimationMatrix);
117
118 output << std::fixed << std::setprecision(2);
119 if (hasTransformMatrix()) {
120 if (isTransformTranslateOnly()) {
121 output << indent << "(Translate " << getTranslationX() << ", " << getTranslationY()
122 << ", " << getZ() << ")" << std::endl;
123 } else {
124 dumpMatrix(output, indent, "ConcatMatrix ", mComputedFields.mTransformMatrix);
125 }
126 }
127
128 const bool isLayer = effectiveLayerType() != LayerType::None;
129 int clipFlags = getClippingFlags();
130 if (mPrimitiveFields.mAlpha < 1 && !MathUtils::isZero(mPrimitiveFields.mAlpha)) {
131 if (isLayer) {
132 clipFlags &= ~CLIP_TO_BOUNDS; // bounds clipping done by layer
133 }
134
135 if (CC_LIKELY(isLayer || !getHasOverlappingRendering())) {
136 // simply scale rendering content's alpha
137 output << indent << "(ScaleAlpha " << mPrimitiveFields.mAlpha << ")" << std::endl;
138 } else {
139 // savelayeralpha to create an offscreen buffer to apply alpha
140 Rect layerBounds(0, 0, getWidth(), getHeight());
141 if (clipFlags) {
142 getClippingRectForFlags(clipFlags, &layerBounds);
143 clipFlags = 0; // all clipping done by savelayer
144 }
145 output << indent << "(SaveLayerAlpha " << (int)layerBounds.left << ", "
146 << (int)layerBounds.top << ", " << (int)layerBounds.right << ", "
147 << (int)layerBounds.bottom << ", " << (int)(mPrimitiveFields.mAlpha * 255)
148 << ", 0x" << std::hex << (SaveFlags::HasAlphaLayer | SaveFlags::ClipToLayer)
149 << ")" << std::dec << std::endl;
150 }
151 }
152
153 if (clipFlags) {
154 Rect clipRect;
155 getClippingRectForFlags(clipFlags, &clipRect);
156 output << indent << "(ClipRect " << (int)clipRect.left << ", " << (int)clipRect.top << ", "
157 << (int)clipRect.right << ", " << (int)clipRect.bottom << ")" << std::endl;
158 }
159
160 if (getRevealClip().willClip()) {
161 Rect bounds;
162 getRevealClip().getBounds(&bounds);
163 output << indent << "(Clip to reveal clip with bounds " << bounds.left << ", " << bounds.top
164 << ", " << bounds.right << ", " << bounds.bottom << ")" << std::endl;
165 }
166
167 auto& outline = mPrimitiveFields.mOutline;
168 if (outline.getShouldClip()) {
169 if (outline.isEmpty()) {
170 output << indent << "(Clip to empty outline)";
171 } else if (outline.willClip()) {
172 const Rect& bounds = outline.getBounds();
173 output << indent << "(Clip to outline with bounds " << bounds.left << ", " << bounds.top
174 << ", " << bounds.right << ", " << bounds.bottom << ")" << std::endl;
175 }
176 }
177 }
178
updateMatrix()179 void RenderProperties::updateMatrix() {
180 if (mPrimitiveFields.mMatrixOrPivotDirty) {
181 if (!mComputedFields.mTransformMatrix) {
182 // only allocate a mPrimitiveFields.matrix if we have a complex transform
183 mComputedFields.mTransformMatrix = new SkMatrix();
184 }
185 if (!mPrimitiveFields.mPivotExplicitlySet) {
186 mPrimitiveFields.mPivotX = mPrimitiveFields.mWidth / 2.0f;
187 mPrimitiveFields.mPivotY = mPrimitiveFields.mHeight / 2.0f;
188 }
189 SkMatrix* transform = mComputedFields.mTransformMatrix;
190 transform->reset();
191 if (MathUtils::isZero(getRotationX()) && MathUtils::isZero(getRotationY())) {
192 transform->setTranslate(getTranslationX(), getTranslationY());
193 transform->preRotate(getRotation(), getPivotX(), getPivotY());
194 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY());
195 } else {
196 SkMatrix transform3D;
197 mComputedFields.mTransformCamera.save();
198 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY());
199 mComputedFields.mTransformCamera.rotateX(mPrimitiveFields.mRotationX);
200 mComputedFields.mTransformCamera.rotateY(mPrimitiveFields.mRotationY);
201 mComputedFields.mTransformCamera.rotateZ(-mPrimitiveFields.mRotation);
202 mComputedFields.mTransformCamera.getMatrix(&transform3D);
203 transform3D.preTranslate(-getPivotX(), -getPivotY());
204 transform3D.postTranslate(getPivotX() + getTranslationX(),
205 getPivotY() + getTranslationY());
206 transform->postConcat(transform3D);
207 mComputedFields.mTransformCamera.restore();
208 }
209 mPrimitiveFields.mMatrixOrPivotDirty = false;
210 }
211 }
212
213 } /* namespace uirenderer */
214 } /* namespace android */
215