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/*
* Copyright (C) 2020 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 "SpriteIcon.h"
#include <SkBitmap.h>
#include <SkCanvas.h>
#include <SkColor.h>
#include <SkPaint.h>
#include <android/native_window.h>
#include <log/log.h>
namespace android {
bool SpriteIcon::draw(sp<Surface> surface) const {
ANativeWindow_Buffer outBuffer;
status_t status = surface->lock(&outBuffer, NULL);
if (status) {
ALOGE("Error %d locking sprite surface before drawing.", status);
return false;
}
SkBitmap surfaceBitmap;
ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
surfaceBitmap.installPixels(SkImageInfo::MakeN32Premul(outBuffer.width, outBuffer.height),
outBuffer.bits, bpr);
SkCanvas surfaceCanvas(surfaceBitmap);
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc);
surfaceCanvas.drawBitmap(bitmap, 0, 0, &paint);
if (outBuffer.width > width()) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRect(SkRect::MakeLTRB(width(), 0, outBuffer.width, height()), paint);
}
if (outBuffer.height > height()) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRect(SkRect::MakeLTRB(0, height(), outBuffer.width, outBuffer.height),
paint);
}
status = surface->unlockAndPost();
if (status) {
ALOGE("Error %d unlocking and posting sprite surface after drawing.", status);
}
return !status;
}
} // namespace android
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