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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you 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 .
*/
#include <skia/salbmp.hxx>
#include <skia/zone.hxx>
#include <SkBitmap.h>
#include <SkCanvas.h>
#include <SkPaint.h>
#include <quartz/cgutils.h>
#ifdef MACOSX
#include <osx/saldata.hxx>
#else
#include <svdata.hxx>
#endif
#include <skia/quartz/cgutils.h>
CGImageRef SkiaSalBitmap::CreateWithMask(const SalBitmap& rMask, int nX, int nY, int nWidth,
int nHeight) const
{
return CreateWithSalBitmapAndMask( *this, rMask, nX, nY, nWidth, nHeight );
}
/** creates an image from the given rectangle, replacing all black pixels
with nMaskColor and make all other full transparent */
CGImageRef SkiaSalBitmap::CreateColorMask(int nX, int nY, int nWidth, int nHeight,
Color nMaskColor) const
{
SkiaZone zone;
SkBitmap targetBitmap;
if (!targetBitmap.tryAllocPixels(SkImageInfo::Make(nWidth, nHeight, kN32_SkColorType, kPremul_SkAlphaType)))
return nullptr;
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc); // set as is
SkMatrix matrix; // The image is needed upside-down.
matrix.preTranslate(0, targetBitmap.height());
matrix.setConcat(matrix, SkMatrix::Scale(1, -1));
SkCanvas canvas(targetBitmap);
canvas.concat(matrix);
canvas.drawImageRect(GetSkImage(), SkRect::MakeXYWH(nX, nY, nWidth, nHeight), SkRect::MakeXYWH(0, 0, nWidth, nHeight), SkSamplingOptions(), &paint, SkCanvas::SrcRectConstraint::kFast_SrcRectConstraint);
if (auto dContext = GrAsDirectContext(canvas.recordingContext()))
dContext->flushAndSubmit();
const SkColor maskColor = SkiaHelper::toSkColor(nMaskColor);
for (int y = 0; y < targetBitmap.height(); y++)
{
SkColor *pPixels = targetBitmap.getAddr32(0, y);
for (int x = 0; x < targetBitmap.width(); x++)
*pPixels++ = (*pPixels == SK_ColorBLACK ? maskColor : SK_ColorTRANSPARENT);
}
targetBitmap.setImmutable();
CGContextRef xContext = CGBitmapContextCreate(targetBitmap.getAddr32(0, 0), targetBitmap.width(), targetBitmap.height(), 8, targetBitmap.rowBytes(), GetSalData()->mxRGBSpace, SkiaToCGBitmapType(targetBitmap.colorType(), targetBitmap.alphaType()));
if (!xContext)
return nullptr;
CGImageRef xCroppedImage = CGBitmapContextCreateImage(xContext);
CGContextRelease(xContext);
return xCroppedImage;
}
CGImageRef SkiaSalBitmap::CreateCroppedImage(int nX, int nY, int nWidth, int nHeight) const
{
SkiaZone zone;
SkBitmap targetBitmap;
if (!targetBitmap.tryAllocPixels(SkImageInfo::Make(nWidth, nHeight, kN32_SkColorType, kPremul_SkAlphaType)))
return nullptr;
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc); // set as is
SkMatrix matrix; // The image is needed upside-down.
matrix.preTranslate(0, targetBitmap.height());
matrix.setConcat(matrix, SkMatrix::Scale(1, -1));
SkCanvas canvas(targetBitmap);
canvas.concat(matrix);
canvas.drawImageRect(GetSkImage(), SkRect::MakeXYWH(nX, nY, nWidth, nHeight), SkRect::MakeXYWH(0, 0, nWidth, nHeight), SkSamplingOptions(), &paint, SkCanvas::SrcRectConstraint::kFast_SrcRectConstraint);
if (auto dContext = GrAsDirectContext(canvas.recordingContext()))
dContext->flushAndSubmit();
targetBitmap.setImmutable();
CGContextRef xContext = CGBitmapContextCreate(targetBitmap.getAddr32(0, 0), targetBitmap.width(), targetBitmap.height(), 8, targetBitmap.rowBytes(), GetSalData()->mxRGBSpace, SkiaToCGBitmapType(targetBitmap.colorType(), targetBitmap.alphaType()));
if (!xContext)
return nullptr;
CGImageRef xCroppedImage = CGBitmapContextCreateImage(xContext);
CGContextRelease(xContext);
return xCroppedImage;
}
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