6aff4814a7
If an SkImageFilter is used, create an image snapshot with the filter applied to avoid re-computing it on each draw invocation Bug: 188450217 Test: Re-ran CTS tests Change-Id: Ib790669e14ada9d4ebbfac958d699e2b5242f2d7
70 lines
2.6 KiB
C++
70 lines
2.6 KiB
C++
/*
|
|
* Copyright (C) 2021 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#include "StretchMask.h"
|
|
#include "SkSurface.h"
|
|
#include "SkCanvas.h"
|
|
#include "TransformCanvas.h"
|
|
#include "SkiaDisplayList.h"
|
|
|
|
using android::uirenderer::StretchMask;
|
|
|
|
void StretchMask::draw(GrRecordingContext* context,
|
|
const StretchEffect& stretch,
|
|
const SkRect& bounds,
|
|
skiapipeline::SkiaDisplayList* displayList,
|
|
SkCanvas* canvas) {
|
|
float width = bounds.width();
|
|
float height = bounds.height();
|
|
if (mMaskSurface == nullptr || mMaskSurface->width() != width ||
|
|
mMaskSurface->height() != height) {
|
|
// Create a new surface if we don't have one or our existing size does
|
|
// not match.
|
|
mMaskSurface = SkSurface::MakeRenderTarget(
|
|
context,
|
|
SkBudgeted::kYes,
|
|
SkImageInfo::Make(
|
|
width,
|
|
height,
|
|
SkColorType::kAlpha_8_SkColorType,
|
|
SkAlphaType::kPremul_SkAlphaType)
|
|
);
|
|
mIsDirty = true;
|
|
}
|
|
|
|
if (mIsDirty) {
|
|
SkCanvas* maskCanvas = mMaskSurface->getCanvas();
|
|
// Make sure to apply target transformation to the mask canvas
|
|
// to ensure the replayed drawing commands generate the same result
|
|
auto previousMatrix = displayList->mParentMatrix;
|
|
displayList->mParentMatrix = maskCanvas->getTotalMatrix();
|
|
maskCanvas->save();
|
|
maskCanvas->drawColor(0, SkBlendMode::kClear);
|
|
TransformCanvas transformCanvas(maskCanvas, SkBlendMode::kSrcOver);
|
|
displayList->draw(&transformCanvas);
|
|
maskCanvas->restore();
|
|
displayList->mParentMatrix = previousMatrix;
|
|
}
|
|
|
|
sk_sp<SkImage> maskImage = mMaskSurface->makeImageSnapshot();
|
|
sk_sp<SkShader> maskStretchShader = stretch.getShader(width, height, maskImage, nullptr);
|
|
|
|
SkPaint maskPaint;
|
|
maskPaint.setShader(maskStretchShader);
|
|
maskPaint.setBlendMode(SkBlendMode::kDstOut);
|
|
canvas->drawRect(bounds, maskPaint);
|
|
|
|
mIsDirty = false;
|
|
} |