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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /include/vcl/BitmapReadAccess.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/vcl/BitmapReadAccess.hxx')
-rw-r--r--include/vcl/BitmapReadAccess.hxx195
1 files changed, 195 insertions, 0 deletions
diff --git a/include/vcl/BitmapReadAccess.hxx b/include/vcl/BitmapReadAccess.hxx
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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_BITMAPREADACCESS_HXX
+#define INCLUDED_VCL_BITMAPREADACCESS_HXX
+
+#include <vcl/dllapi.h>
+#include <vcl/bitmap.hxx>
+#include <vcl/Scanline.hxx>
+#include <vcl/BitmapBuffer.hxx>
+#include <vcl/BitmapColor.hxx>
+#include <vcl/BitmapAccessMode.hxx>
+#include <vcl/BitmapInfoAccess.hxx>
+
+class SAL_DLLPUBLIC_RTTI BitmapReadAccess : public BitmapInfoAccess
+{
+ friend class BitmapWriteAccess;
+
+public:
+ VCL_DLLPUBLIC BitmapReadAccess(Bitmap& rBitmap,
+ BitmapAccessMode nMode = BitmapAccessMode::Read);
+ VCL_DLLPUBLIC virtual ~BitmapReadAccess() override;
+
+ Scanline GetBuffer() const
+ {
+ assert(mpBuffer && "Access is not valid!");
+
+ return mpBuffer ? mpBuffer->mpBits : nullptr;
+ }
+
+ Scanline GetScanline(tools::Long nY) const
+ {
+ assert(mpBuffer && "Access is not valid!");
+ assert(nY < mpBuffer->mnHeight && "y-coordinate out of range!");
+
+ if (mpBuffer->mnFormat & ScanlineFormat::TopDown)
+ {
+ return mpBuffer->mpBits + (nY * mpBuffer->mnScanlineSize);
+ }
+ return mpBuffer->mpBits + ((mpBuffer->mnHeight - 1 - nY) * mpBuffer->mnScanlineSize);
+ }
+
+ BitmapColor GetPixelFromData(const sal_uInt8* pData, tools::Long nX) const
+ {
+ assert(pData && "Access is not valid!");
+
+ return mFncGetPixel(pData, nX, maColorMask);
+ }
+
+ sal_uInt8 GetIndexFromData(const sal_uInt8* pData, tools::Long nX) const
+ {
+ return GetPixelFromData(pData, nX).GetIndex();
+ }
+
+ void SetPixelOnData(sal_uInt8* pData, tools::Long nX, const BitmapColor& rBitmapColor)
+ {
+ assert(pData && "Access is not valid!");
+
+ mFncSetPixel(pData, nX, rBitmapColor, maColorMask);
+ }
+
+ BitmapColor GetPixel(tools::Long nY, tools::Long nX) const
+ {
+ assert(mpBuffer && "Access is not valid!");
+ assert(nX < mpBuffer->mnWidth && "x-coordinate out of range!");
+ assert(nY < mpBuffer->mnHeight && "y-coordinate out of range!");
+
+ return mFncGetPixel(GetScanline(nY), nX, maColorMask);
+ }
+
+ BitmapColor GetPixel(const Point& point) const { return GetPixel(point.Y(), point.X()); }
+
+ BitmapColor GetColor(tools::Long nY, tools::Long nX) const
+ {
+ if (HasPalette())
+ {
+ const BitmapBuffer* pBuffer = mpBuffer;
+ return pBuffer->maPalette[GetPixelIndex(nY, nX)];
+ }
+ else
+ return GetPixel(nY, nX);
+ }
+
+ BitmapColor GetColor(const Point& point) const { return GetColor(point.Y(), point.X()); }
+
+ sal_uInt8 GetPixelIndex(tools::Long nY, tools::Long nX) const
+ {
+ return GetPixel(nY, nX).GetIndex();
+ }
+
+ sal_uInt8 GetPixelIndex(const Point& point) const
+ {
+ return GetPixelIndex(point.Y(), point.X());
+ }
+
+ /** Get the interpolated color at coordinates fY, fX; if outside, return rFallback */
+ BitmapColor GetInterpolatedColorWithFallback(double fY, double fX,
+ const BitmapColor& rFallback) const;
+
+ /** Get the color at coordinates fY, fX; if outside, return rFallback. Automatically does the correct
+ inside/outside checks, e.g. static_cast< sal_uInt32 >(-0.25) *is* 0, not -1 and has to be outside */
+ BitmapColor GetColorWithFallback(double fY, double fX, const BitmapColor& rFallback) const;
+
+private:
+ BitmapReadAccess(const BitmapReadAccess&) = delete;
+ BitmapReadAccess& operator=(const BitmapReadAccess&) = delete;
+
+protected:
+ FncGetPixel mFncGetPixel;
+ FncSetPixel mFncSetPixel;
+
+public:
+ BitmapBuffer* ImplGetBitmapBuffer() const { return mpBuffer; }
+
+ static BitmapColor GetPixelForN1BitMsbPal(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN1BitLsbPal(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN8BitPal(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN24BitTcBgr(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN24BitTcRgb(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcAbgr(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcXbgr(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcArgb(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcXrgb(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcBgra(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcBgrx(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcRgba(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcRgbx(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+ static BitmapColor GetPixelForN32BitTcMask(ConstScanline pScanline, tools::Long nX,
+ const ColorMask& rMask);
+
+ static void SetPixelForN1BitMsbPal(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN1BitLsbPal(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN8BitPal(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN24BitTcBgr(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN24BitTcRgb(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcAbgr(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcXbgr(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcArgb(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcXrgb(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcBgra(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcBgrx(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcRgba(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcRgbx(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+ static void SetPixelForN32BitTcMask(Scanline pScanline, tools::Long nX,
+ const BitmapColor& rBitmapColor, const ColorMask& rMask);
+
+ static FncGetPixel GetPixelFunction(ScanlineFormat nFormat);
+ static FncSetPixel SetPixelFunction(ScanlineFormat nFormat);
+};
+
+#endif // INCLUDED_VCL_BITMAPREADACCESS_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */