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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 .
*/
#ifndef INCLUDED_VCL_INC_SKIA_SALBMP_H
#define INCLUDED_VCL_INC_SKIA_SALBMP_H
#include <salbmp.hxx>
#include <SkBitmap.h>
class SkImage;
class VCL_PLUGIN_PUBLIC SkiaSalBitmap : public SalBitmap
{
public:
SkiaSalBitmap();
SkiaSalBitmap(const SkImage& image);
virtual ~SkiaSalBitmap() override;
// SalBitmap methods
virtual bool Create(const Size& rSize, sal_uInt16 nBitCount,
const BitmapPalette& rPal) override;
virtual bool Create(const SalBitmap& rSalBmp) override;
virtual bool Create(const SalBitmap& rSalBmp, SalGraphics* pGraphics) override;
virtual bool Create(const SalBitmap& rSalBmp, sal_uInt16 nNewBitCount) override;
virtual bool Create(const css::uno::Reference<css::rendering::XBitmapCanvas>& rBitmapCanvas,
Size& rSize, bool bMask = false) override;
virtual void Destroy() final override;
virtual Size GetSize() const override;
virtual sal_uInt16 GetBitCount() const override;
virtual BitmapBuffer* AcquireBuffer(BitmapAccessMode nMode) override;
virtual void ReleaseBuffer(BitmapBuffer* pBuffer, BitmapAccessMode nMode) override;
virtual bool GetSystemData(BitmapSystemData& rData) override;
virtual bool ScalingSupported() const override;
virtual bool Scale(const double& rScaleX, const double& rScaleY,
BmpScaleFlag nScaleFlag) override;
virtual bool Replace(const Color& rSearchColor, const Color& rReplaceColor,
sal_uInt8 nTol) override;
virtual bool ConvertToGreyscale() override;
// Accesses the internal SkBitmap. If the bit count is one that Skia does
// not support natively, data from the internal buffer is converted
// to a 32bpp SkBitmap.
const SkBitmap& GetSkBitmap() const;
const SkBitmap& GetAlphaSkBitmap() const;
#ifdef DBG_UTIL
void dump(const char* file) const;
#endif
private:
void ResetCachedBitmap();
#ifdef DBG_UTIL
void verify() const;
#else
void verify() const {};
#endif
template <typename charT, typename traits>
friend inline std::basic_ostream<charT, traits>&
operator<<(std::basic_ostream<charT, traits>& stream, const SkiaSalBitmap* bitmap)
{ // TODO GPU-based, once it's done
// B - has SkBitmap, A - has alpha SkBitmap, D - has data buffer
return stream << static_cast<const void*>(bitmap) << " " << bitmap->GetSize() << "/"
<< bitmap->mBitCount << (!bitmap->mBitmap.drawsNothing() ? "B" : "")
<< (!bitmap->mAlphaBitmap.drawsNothing() ? "A" : "")
<< (bitmap->mBuffer.get() ? "D" : "");
}
// TODO use something GPU-backed, or at least cache it for when drawing it to something GPU-backed?
SkBitmap mBitmap;
SkBitmap mAlphaBitmap; // TODO for use as an alpha channel or mask
BitmapPalette mPalette;
int mBitCount; // bpp
Size mSize;
// Skia does not natively support 1bpp and 4bpp, so such bitmaps are stored
// in a buffer (and converted to 32bpp SkBitmap on-demand using GetSkBitmap()).
std::unique_ptr<sal_uInt8[]> mBuffer;
int mScanlineSize; // size of one row in mBuffer
};
#endif // INCLUDED_VCL_INC_SKIA_SALBMP_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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