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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /vcl/headless/svpvd.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/headless/svpvd.cxx')
-rw-r--r--vcl/headless/svpvd.cxx157
1 files changed, 157 insertions, 0 deletions
diff --git a/vcl/headless/svpvd.cxx b/vcl/headless/svpvd.cxx
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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 IOS
+
+#include <headless/svpbmp.hxx>
+#include <headless/svpinst.hxx>
+#include <headless/svpvd.hxx>
+#include <headless/svpgdi.hxx>
+
+#include <basegfx/vector/b2ivector.hxx>
+#include <comphelper/lok.hxx>
+
+#include <cairo.h>
+
+using namespace basegfx;
+
+SvpSalVirtualDevice::SvpSalVirtualDevice(cairo_surface_t* pRefSurface, cairo_surface_t* pPreExistingTarget)
+ : m_pRefSurface(pRefSurface)
+ , m_pSurface(pPreExistingTarget)
+ , m_bOwnsSurface(!pPreExistingTarget)
+{
+ cairo_surface_reference(m_pRefSurface);
+}
+
+SvpSalVirtualDevice::~SvpSalVirtualDevice()
+{
+ if (m_bOwnsSurface)
+ cairo_surface_destroy(m_pSurface);
+ cairo_surface_destroy(m_pRefSurface);
+}
+
+SvpSalGraphics* SvpSalVirtualDevice::AddGraphics(SvpSalGraphics* pGraphics)
+{
+ pGraphics->setSurface(m_pSurface, m_aFrameSize);
+ m_aGraphics.push_back(pGraphics);
+ return pGraphics;
+}
+
+SalGraphics* SvpSalVirtualDevice::AcquireGraphics()
+{
+ return AddGraphics(new SvpSalGraphics());
+}
+
+void SvpSalVirtualDevice::ReleaseGraphics( SalGraphics* pGraphics )
+{
+ std::erase(m_aGraphics, dynamic_cast<SvpSalGraphics*>(pGraphics));
+ delete pGraphics;
+}
+
+bool SvpSalVirtualDevice::SetSize( tools::Long nNewDX, tools::Long nNewDY )
+{
+ return SetSizeUsingBuffer(nNewDX, nNewDY, nullptr);
+}
+
+bool SvpSalVirtualDevice::CreateSurface(tools::Long nNewDX, tools::Long nNewDY, sal_uInt8 *const pBuffer)
+{
+ if (m_pSurface)
+ {
+ cairo_surface_destroy(m_pSurface);
+ }
+
+ if (pBuffer)
+ {
+ // The buffer should only be set by VirtualDevice::SetOutputSizePixelScaleOffsetAndLOKBuffer()
+ // when used to draw a tile for LOK. It cannot be used for something else, because otherwise
+ // this would need a way to detect whether this is a tiled paint that needs LOK handling
+ // or whether it's that something else that just might happen to be called with LOK active.
+ assert(comphelper::LibreOfficeKit::isActive());
+ // Force scaling of the painting
+ double fScale = comphelper::LibreOfficeKit::getDPIScale();
+
+ m_pSurface = cairo_image_surface_create_for_data(pBuffer, CAIRO_FORMAT_ARGB32,
+ nNewDX, nNewDY, cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, nNewDX));
+ dl_cairo_surface_set_device_scale(m_pSurface, fScale, fScale);
+ }
+ else if(nNewDX <= 32 && nNewDY <= 32)
+ {
+ double fXScale, fYScale;
+ dl_cairo_surface_get_device_scale(m_pRefSurface, &fXScale, &fYScale);
+ nNewDX *= fXScale;
+ nNewDY *= fYScale;
+
+ // Force image-based surface if small. Small VirtualDevice instances are often used for small
+ // temporary bitmaps that will eventually have GetBitmap() called on them, which would cause
+ // X Server roundtrip with Xlib-based surface, which may be way more costly than doing the drawing
+ // in software (which should be fairly cheap for small surfaces anyway).
+ m_pSurface = cairo_surface_create_similar_image(m_pRefSurface, CAIRO_FORMAT_ARGB32, nNewDX, nNewDY);
+ dl_cairo_surface_set_device_scale(m_pSurface, fXScale, fYScale);
+ }
+ else
+ {
+ m_pSurface = cairo_surface_create_similar(m_pRefSurface, CAIRO_CONTENT_COLOR_ALPHA, nNewDX, nNewDY);
+ // Device scale is inherited in this case.
+ }
+
+ SAL_WARN_IF(cairo_surface_status(m_pSurface) != CAIRO_STATUS_SUCCESS, "vcl", "surface of size " << nNewDX << " by " << nNewDY << " creation failed with status of: " << cairo_status_to_string(cairo_surface_status(m_pSurface)));
+ return cairo_surface_status(m_pSurface) == CAIRO_STATUS_SUCCESS;
+}
+
+bool SvpSalVirtualDevice::SetSizeUsingBuffer( tools::Long nNewDX, tools::Long nNewDY,
+ sal_uInt8 *const pBuffer)
+{
+ bool bSuccess = true;
+
+ if (nNewDX == 0)
+ nNewDX = 1;
+ if (nNewDY == 0)
+ nNewDY = 1;
+
+ if (!m_pSurface || m_aFrameSize.getX() != nNewDX ||
+ m_aFrameSize.getY() != nNewDY)
+ {
+ m_aFrameSize = basegfx::B2IVector(nNewDX, nNewDY);
+
+ if (m_bOwnsSurface)
+ bSuccess = CreateSurface(nNewDX, nNewDY, pBuffer);
+
+ assert(m_pSurface);
+
+ // update device in existing graphics
+ for (auto const& graphic : m_aGraphics)
+ graphic->setSurface(m_pSurface, m_aFrameSize);
+ }
+
+ return bSuccess;
+}
+
+tools::Long SvpSalVirtualDevice::GetWidth() const
+{
+ return m_pSurface ? m_aFrameSize.getX() : 0;
+}
+
+tools::Long SvpSalVirtualDevice::GetHeight() const
+{
+ return m_pSurface ? m_aFrameSize.getY() : 0;
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */