b153d147c9
Rather use a proper alpha channel if we need transparency. This is another small step towards merged alpha in our vcl layer. I suspect the intent in a lot of this code was to save memory. Which have been a thing way back then, but these days our backends mostly end up doing a copy-and-convert to a real alpha channel anyway, so the existing code is actually now a pessimisation. Change-Id: I4a2bcbb2f76b841f05bc00580f364492829c69de Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114808 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_VCL_INC_HEADLESS_SVPVD_HXX
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#define INCLUDED_VCL_INC_HEADLESS_SVPVD_HXX
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#include <salvd.hxx>
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#include <vcl/salgtype.hxx>
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#include <basegfx/vector/b2ivector.hxx>
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#include <vector>
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class SvpSalGraphics;
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typedef struct _cairo_surface cairo_surface_t;
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class VCL_DLLPUBLIC SvpSalVirtualDevice : public SalVirtualDevice
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{
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cairo_surface_t* m_pRefSurface;
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cairo_surface_t* m_pSurface;
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bool m_bOwnsSurface; // nearly always true, except for edge case of tdf#127529
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basegfx::B2IVector m_aFrameSize;
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std::vector< SvpSalGraphics* > m_aGraphics;
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void CreateSurface(tools::Long nNewDX, tools::Long nNewDY, sal_uInt8 *const pBuffer);
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protected:
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SvpSalGraphics* AddGraphics(SvpSalGraphics* aGraphics);
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public:
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SvpSalVirtualDevice(cairo_surface_t* pRefSurface, cairo_surface_t* pPreExistingTarget);
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virtual ~SvpSalVirtualDevice() override;
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// SalVirtualDevice
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virtual SalGraphics* AcquireGraphics() override;
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virtual void ReleaseGraphics( SalGraphics* pGraphics ) override;
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virtual bool SetSize( tools::Long nNewDX, tools::Long nNewDY ) override;
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virtual bool SetSizeUsingBuffer( tools::Long nNewDX, tools::Long nNewDY,
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sal_uInt8 * pBuffer
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) override;
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cairo_surface_t* GetSurface() const { return m_pSurface; }
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// SalGeometryProvider
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virtual tools::Long GetWidth() const override;
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virtual tools::Long GetHeight() const override;
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};
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#endif // INCLUDED_VCL_INC_HEADLESS_SVPVD_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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