RenderProperties.cpp revision e0bb87d4bdbd3b08ab6a8569c8e564ed59b8a5a7
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#define LOG_TAG "OpenGLRenderer" 18 19#include "RenderProperties.h" 20 21#include <utils/Trace.h> 22 23#include <SkCanvas.h> 24#include <SkMatrix.h> 25#include <SkPath.h> 26#include <SkPathOps.h> 27 28#include "Matrix.h" 29#include "utils/MathUtils.h" 30 31namespace android { 32namespace uirenderer { 33 34RenderProperties::PrimitiveFields::PrimitiveFields() 35 : mClipToBounds(true) 36 , mProjectBackwards(false) 37 , mProjectionReceiver(false) 38 , mAlpha(1) 39 , mHasOverlappingRendering(true) 40 , mTranslationX(0), mTranslationY(0), mTranslationZ(0) 41 , mRotation(0), mRotationX(0), mRotationY(0) 42 , mScaleX(1), mScaleY(1) 43 , mPivotX(0), mPivotY(0) 44 , mLeft(0), mTop(0), mRight(0), mBottom(0) 45 , mWidth(0), mHeight(0) 46 , mPivotExplicitlySet(false) 47 , mMatrixOrPivotDirty(false) 48 , mCaching(false) { 49} 50 51RenderProperties::ComputedFields::ComputedFields() 52 : mTransformMatrix(NULL) 53 , mClipPath(NULL) { 54} 55 56RenderProperties::ComputedFields::~ComputedFields() { 57 delete mTransformMatrix; 58 delete mClipPath; 59} 60 61RenderProperties::RenderProperties() 62 : mStaticMatrix(NULL) 63 , mAnimationMatrix(NULL) { 64} 65 66RenderProperties::~RenderProperties() { 67 delete mStaticMatrix; 68 delete mAnimationMatrix; 69} 70 71RenderProperties& RenderProperties::operator=(const RenderProperties& other) { 72 if (this != &other) { 73 mPrimitiveFields = other.mPrimitiveFields; 74 setStaticMatrix(other.getStaticMatrix()); 75 setAnimationMatrix(other.getAnimationMatrix()); 76 setCameraDistance(other.getCameraDistance()); 77 78 // Update the computed clip path 79 updateClipPath(); 80 81 // Force recalculation of the matrix, since other's dirty bit may be clear 82 mPrimitiveFields.mMatrixOrPivotDirty = true; 83 updateMatrix(); 84 } 85 return *this; 86} 87 88void RenderProperties::debugOutputProperties(const int level) const { 89 if (mPrimitiveFields.mLeft != 0 || mPrimitiveFields.mTop != 0) { 90 ALOGD("%*sTranslate (left, top) %d, %d", level * 2, "", mPrimitiveFields.mLeft, mPrimitiveFields.mTop); 91 } 92 if (mStaticMatrix) { 93 ALOGD("%*sConcatMatrix (static) %p: " SK_MATRIX_STRING, 94 level * 2, "", mStaticMatrix, SK_MATRIX_ARGS(mStaticMatrix)); 95 } 96 if (mAnimationMatrix) { 97 ALOGD("%*sConcatMatrix (animation) %p: " SK_MATRIX_STRING, 98 level * 2, "", mAnimationMatrix, SK_MATRIX_ARGS(mAnimationMatrix)); 99 } 100 if (hasTransformMatrix()) { 101 if (isTransformTranslateOnly()) { 102 ALOGD("%*sTranslate %.2f, %.2f, %.2f", 103 level * 2, "", mPrimitiveFields.mTranslationX, mPrimitiveFields.mTranslationY, mPrimitiveFields.mTranslationZ); 104 } else { 105 ALOGD("%*sConcatMatrix %p: " SK_MATRIX_STRING, 106 level * 2, "", mComputedFields.mTransformMatrix, SK_MATRIX_ARGS(mComputedFields.mTransformMatrix)); 107 } 108 } 109 110 bool clipToBoundsNeeded = mPrimitiveFields.mCaching ? false : mPrimitiveFields.mClipToBounds; 111 if (mPrimitiveFields.mAlpha < 1) { 112 if (mPrimitiveFields.mCaching) { 113 ALOGD("%*sSetOverrideLayerAlpha %.2f", level * 2, "", mPrimitiveFields.mAlpha); 114 } else if (!mPrimitiveFields.mHasOverlappingRendering) { 115 ALOGD("%*sScaleAlpha %.2f", level * 2, "", mPrimitiveFields.mAlpha); 116 } else { 117 int flags = SkCanvas::kHasAlphaLayer_SaveFlag; 118 if (clipToBoundsNeeded) { 119 flags |= SkCanvas::kClipToLayer_SaveFlag; 120 clipToBoundsNeeded = false; // clipping done by save layer 121 } 122 ALOGD("%*sSaveLayerAlpha %d, %d, %d, %d, %d, 0x%x", level * 2, "", 123 0, 0, getWidth(), getHeight(), 124 (int)(mPrimitiveFields.mAlpha * 255), flags); 125 } 126 } 127 if (clipToBoundsNeeded) { 128 ALOGD("%*sClipRect %d, %d, %d, %d", level * 2, "", 129 0, 0, getWidth(), getHeight()); 130 } 131} 132 133void RenderProperties::updateMatrix() { 134 if (mPrimitiveFields.mMatrixOrPivotDirty) { 135 if (!mComputedFields.mTransformMatrix) { 136 // only allocate a mPrimitiveFields.matrix if we have a complex transform 137 mComputedFields.mTransformMatrix = new SkMatrix(); 138 } 139 if (!mPrimitiveFields.mPivotExplicitlySet) { 140 mPrimitiveFields.mPivotX = mPrimitiveFields.mWidth / 2.0f; 141 mPrimitiveFields.mPivotY = mPrimitiveFields.mHeight / 2.0f; 142 } 143 SkMatrix* transform = mComputedFields.mTransformMatrix; 144 transform->reset(); 145 if (MathUtils::isZero(getRotationX()) && MathUtils::isZero(getRotationY())) { 146 transform->setTranslate(getTranslationX(), getTranslationY()); 147 transform->preRotate(getRotation(), getPivotX(), getPivotY()); 148 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY()); 149 } else { 150 SkMatrix transform3D; 151 mComputedFields.mTransformCamera.save(); 152 transform->preScale(getScaleX(), getScaleY(), getPivotX(), getPivotY()); 153 mComputedFields.mTransformCamera.rotateX(mPrimitiveFields.mRotationX); 154 mComputedFields.mTransformCamera.rotateY(mPrimitiveFields.mRotationY); 155 mComputedFields.mTransformCamera.rotateZ(-mPrimitiveFields.mRotation); 156 mComputedFields.mTransformCamera.getMatrix(&transform3D); 157 transform3D.preTranslate(-getPivotX(), -getPivotY()); 158 transform3D.postTranslate(getPivotX() + getTranslationX(), 159 getPivotY() + getTranslationY()); 160 transform->postConcat(transform3D); 161 mComputedFields.mTransformCamera.restore(); 162 } 163 mPrimitiveFields.mMatrixOrPivotDirty = false; 164 } 165} 166 167void RenderProperties::updateClipPath() { 168 const SkPath* outlineClipPath = mPrimitiveFields.mOutline.willClip() 169 ? mPrimitiveFields.mOutline.getPath() : NULL; 170 const SkPath* revealClipPath = mPrimitiveFields.mRevealClip.getPath(); 171 172 if (!outlineClipPath && !revealClipPath) { 173 // mComputedFields.mClipPath doesn't need to be updated, since it won't be used 174 return; 175 } 176 177 if (mComputedFields.mClipPath == NULL) { 178 mComputedFields.mClipPath = new SkPath(); 179 } 180 SkPath* clipPath = mComputedFields.mClipPath; 181 mComputedFields.mClipPathOp = SkRegion::kIntersect_Op; 182 183 if (outlineClipPath && revealClipPath) { 184 SkPathOp op = kIntersect_PathOp; 185 if (mPrimitiveFields.mRevealClip.isInverseClip()) { 186 op = kDifference_PathOp; // apply difference step in the Op below, instead of draw time 187 } 188 189 Op(*outlineClipPath, *revealClipPath, op, clipPath); 190 } else if (outlineClipPath) { 191 *clipPath = *outlineClipPath; 192 } else { 193 *clipPath = *revealClipPath; 194 if (mPrimitiveFields.mRevealClip.isInverseClip()) { 195 // apply difference step at draw time 196 mComputedFields.mClipPathOp = SkRegion::kDifference_Op; 197 } 198 } 199} 200 201} /* namespace uirenderer */ 202} /* namespace android */ 203