127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "RenderProperties.h"
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#include <SkMatrix.h>
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#include "Matrix.h"
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namespace android {
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namespace uirenderer {
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RenderProperties::RenderProperties()
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: mClipToBounds(true)
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, mProjectBackwards(false)
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, mProjectionReceiver(false)
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, mClipToOutline(false)
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, mCastsShadow(false)
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, mUsesGlobalCamera(false) // TODO: respect value when rendering
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, mAlpha(1)
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, mHasOverlappingRendering(true)
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, mTranslationX(0), mTranslationY(0), mTranslationZ(0)
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, mRotation(0), mRotationX(0), mRotationY(0)
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, mScaleX(1), mScaleY(1)
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, mPivotX(0), mPivotY(0)
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, mCameraDistance(0)
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, mLeft(0), mTop(0), mRight(0), mBottom(0)
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, mWidth(0), mHeight(0)
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, mPrevWidth(-1), mPrevHeight(-1)
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, mPivotExplicitlySet(false)
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, mMatrixDirty(false)
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, mMatrixIsIdentity(true)
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, mTransformMatrix(NULL)
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, mMatrixFlags(0)
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, mTransformCamera(NULL)
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, mTransformMatrix3D(NULL)
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, mStaticMatrix(NULL)
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, mAnimationMatrix(NULL)
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, mCaching(false) {
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mOutline.rewind();
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}
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RenderProperties::~RenderProperties() {
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delete mTransformMatrix;
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delete mTransformCamera;
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delete mTransformMatrix3D;
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delete mStaticMatrix;
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delete mAnimationMatrix;
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}
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float RenderProperties::getPivotX() {
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updateMatrix();
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return mPivotX;
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}
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float RenderProperties::getPivotY() {
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updateMatrix();
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return mPivotY;
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}
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void RenderProperties::updateMatrix() {
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if (mMatrixDirty) {
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// NOTE: mTransformMatrix won't be up to date if a DisplayList goes from a complex transform
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// to a pure translate. This is safe because the matrix isn't read in pure translate cases.
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if (mMatrixFlags && mMatrixFlags != TRANSLATION) {
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if (!mTransformMatrix) {
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// only allocate a matrix if we have a complex transform
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mTransformMatrix = new Matrix4();
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}
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if (!mPivotExplicitlySet) {
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if (mWidth != mPrevWidth || mHeight != mPrevHeight) {
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mPrevWidth = mWidth;
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mPrevHeight = mHeight;
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mPivotX = mPrevWidth / 2.0f;
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mPivotY = mPrevHeight / 2.0f;
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}
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}
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if ((mMatrixFlags & ROTATION_3D) == 0) {
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mTransformMatrix->loadTranslate(
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mPivotX + mTranslationX,
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mPivotY + mTranslationY,
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0);
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mTransformMatrix->rotate(mRotation, 0, 0, 1);
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mTransformMatrix->scale(mScaleX, mScaleY, 1);
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mTransformMatrix->translate(-mPivotX, -mPivotY);
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} else {
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if (!mTransformCamera) {
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mTransformCamera = new Sk3DView();
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mTransformMatrix3D = new SkMatrix();
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}
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SkMatrix transformMatrix;
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transformMatrix.reset();
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mTransformCamera->save();
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transformMatrix.preScale(mScaleX, mScaleY, mPivotX, mPivotY);
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mTransformCamera->rotateX(mRotationX);
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mTransformCamera->rotateY(mRotationY);
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mTransformCamera->rotateZ(-mRotation);
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mTransformCamera->getMatrix(mTransformMatrix3D);
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mTransformMatrix3D->preTranslate(-mPivotX, -mPivotY);
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mTransformMatrix3D->postTranslate(mPivotX + mTranslationX,
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mPivotY + mTranslationY);
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transformMatrix.postConcat(*mTransformMatrix3D);
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mTransformCamera->restore();
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mTransformMatrix->load(transformMatrix);
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}
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}
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mMatrixDirty = false;
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}
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}
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} /* namespace uirenderer */
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} /* namespace android */
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