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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_OPENGL_SALBMP_H
#define INCLUDED_VCL_INC_OPENGL_SALBMP_H
#include <vcl/opengl/OpenGLContext.hxx>
#include <opengl/texture.hxx>
#include <salbmp.hxx>
#include <memory>
struct BitmapBuffer;
class BitmapPalette;
namespace vcl
{
class Kernel;
}
class VCL_PLUGIN_PUBLIC OpenGLSalBitmap : public SalBitmap
{
private:
OpenGLTexture maTexture;
bool mbDirtyTexture;
BitmapPalette maPalette;
std::shared_ptr<sal_uInt8> mpUserBuffer;
sal_uInt16 mnBits;
sal_uInt32 mnBytesPerRow;
int mnWidth;
int mnHeight;
virtual void updateChecksum() const override;
bool calcChecksumGL(OpenGLTexture& rInputTexture, BitmapChecksum& rChecksum) const;
public:
OpenGLSalBitmap();
virtual ~OpenGLSalBitmap() override;
public:
// SalBitmap methods
bool Create( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal ) override;
bool Create( const SalBitmap& rSalBmp ) override;
bool Create( const SalBitmap& rSalBmp, SalGraphics* pGraphics ) override;
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;
void Destroy() final override;
Size GetSize() const override;
sal_uInt16 GetBitCount() const override;
BitmapBuffer* AcquireBuffer( BitmapAccessMode nMode ) override;
void ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode ) override;
bool GetSystemData( BitmapSystemData& rData ) override;
bool ScalingSupported() const override;
bool Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag ) override;
bool Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uInt8 nTol ) override;
bool ConvertToGreyscale() override;
public:
void Create( const OpenGLTexture& rTex, long nX, long nY, long nWidth, long nHeight );
OpenGLTexture& GetTexture() const;
const BitmapPalette& GetBitmapPalette() const { return maPalette; }
private:
GLuint CreateTexture();
bool AllocateUserData();
void DeallocateUserData();
bool ReadTexture();
private:
bool ImplScaleFilter( const rtl::Reference< OpenGLContext > &xContext, const double& rScaleX, const double& rScaleY, GLenum nFilter );
static void ImplCreateKernel( const double& fScale, const vcl::Kernel& rKernel, GLfloat*& pWeights, sal_uInt32& aKernelSize );
bool ImplScaleConvolution(const rtl::Reference< OpenGLContext > &xContext, const double& rScaleX, const double& rScaleY, const vcl::Kernel& rKernel);
bool ImplScaleArea( const rtl::Reference< OpenGLContext > &xContext,
double rScaleX, double rScaleY );
public:
void ImplScale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag );
};
#endif // INCLUDED_VCL_INC_OPENGL_SALBMP_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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