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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 /canvas/source/cairo/cairo_canvashelper.cxx
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 'canvas/source/cairo/cairo_canvashelper.cxx')
-rw-r--r--canvas/source/cairo/cairo_canvashelper.cxx2047
1 files changed, 2047 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_canvashelper.cxx b/canvas/source/cairo/cairo_canvashelper.cxx
new file mode 100644
index 000000000..8f46c5b85
--- /dev/null
+++ b/canvas/source/cairo/cairo_canvashelper.cxx
@@ -0,0 +1,2047 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <algorithm>
+#include <tuple>
+
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/utils/keystoplerp.hxx>
+#include <basegfx/utils/lerp.hxx>
+#include <com/sun/star/rendering/ColorComponentTag.hpp>
+#include <com/sun/star/rendering/ColorSpaceType.hpp>
+#include <com/sun/star/rendering/CompositeOperation.hpp>
+#include <com/sun/star/rendering/IntegerBitmapLayout.hpp>
+#include <com/sun/star/rendering/PathCapType.hpp>
+#include <com/sun/star/rendering/PathJoinType.hpp>
+#include <com/sun/star/rendering/RenderingIntent.hpp>
+#include <com/sun/star/rendering/TexturingMode.hpp>
+#include <com/sun/star/rendering/XIntegerBitmapColorSpace.hpp>
+#include <com/sun/star/util/Endianness.hpp>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/bitmapex.hxx>
+#include <vcl/BitmapTools.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/virdev.hxx>
+
+#include <canvas/canvastools.hxx>
+#include <parametricpolypolygon.hxx>
+#include <cairo.h>
+
+#include "cairo_cachedbitmap.hxx"
+#include "cairo_canvasbitmap.hxx"
+#include "cairo_canvashelper.hxx"
+
+using namespace ::cairo;
+using namespace ::com::sun::star;
+
+namespace cairocanvas
+{
+ CanvasHelper::CanvasHelper() :
+ mpSurfaceProvider(nullptr),
+ mpDevice(nullptr),
+ mbHaveAlpha()
+ {
+ }
+
+ void CanvasHelper::disposing()
+ {
+ mpSurface.reset();
+ mpCairo.reset();
+ mpVirtualDevice.disposeAndClear();
+ mpDevice = nullptr;
+ mpSurfaceProvider = nullptr;
+ }
+
+ void CanvasHelper::init( const ::basegfx::B2ISize& rSizePixel,
+ SurfaceProvider& rSurfaceProvider,
+ rendering::XGraphicDevice* pDevice )
+ {
+ maSize = rSizePixel;
+ mpSurfaceProvider = &rSurfaceProvider;
+ mpDevice = pDevice;
+ }
+
+ void CanvasHelper::setSize( const ::basegfx::B2ISize& rSize )
+ {
+ maSize = rSize;
+ }
+
+ void CanvasHelper::setSurface( const SurfaceSharedPtr& pSurface, bool bHasAlpha )
+ {
+ mbHaveAlpha = bHasAlpha;
+ mpVirtualDevice.disposeAndClear();
+ mpSurface = pSurface;
+ mpCairo = pSurface->getCairo();
+ }
+
+ static void setColor( cairo_t* pCairo,
+ const uno::Sequence<double>& rColor )
+ {
+ if( rColor.getLength() > 3 )
+ {
+ cairo_set_source_rgba( pCairo,
+ rColor[0],
+ rColor[1],
+ rColor[2],
+ rColor[3] );
+ }
+ else if( rColor.getLength() == 3 )
+ cairo_set_source_rgb( pCairo,
+ rColor[0],
+ rColor[1],
+ rColor[2] );
+ }
+
+ void CanvasHelper::useStates( const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ bool bSetColor )
+ {
+ cairo_matrix_t aViewMatrix;
+ cairo_matrix_t aRenderMatrix;
+ cairo_matrix_t aCombinedMatrix;
+
+ cairo_matrix_init( &aViewMatrix,
+ viewState.AffineTransform.m00, viewState.AffineTransform.m10, viewState.AffineTransform.m01,
+ viewState.AffineTransform.m11, viewState.AffineTransform.m02, viewState.AffineTransform.m12);
+ cairo_matrix_init( &aRenderMatrix,
+ renderState.AffineTransform.m00, renderState.AffineTransform.m10, renderState.AffineTransform.m01,
+ renderState.AffineTransform.m11, renderState.AffineTransform.m02, renderState.AffineTransform.m12);
+ cairo_matrix_multiply( &aCombinedMatrix, &aRenderMatrix, &aViewMatrix);
+
+ if( viewState.Clip.is() )
+ {
+ SAL_INFO( "canvas.cairo", "view clip");
+
+ aViewMatrix.x0 = basegfx::fround( aViewMatrix.x0 );
+ aViewMatrix.y0 = basegfx::fround( aViewMatrix.y0 );
+ cairo_set_matrix( mpCairo.get(), &aViewMatrix );
+ doPolyPolygonPath( viewState.Clip, Clip );
+ }
+
+ aCombinedMatrix.x0 = basegfx::fround( aCombinedMatrix.x0 );
+ aCombinedMatrix.y0 = basegfx::fround( aCombinedMatrix.y0 );
+ cairo_set_matrix( mpCairo.get(), &aCombinedMatrix );
+
+ if( renderState.Clip.is() )
+ {
+ SAL_INFO( "canvas.cairo", "render clip BEGIN");
+
+ doPolyPolygonPath( renderState.Clip, Clip );
+ SAL_INFO( "canvas.cairo", "render clip END");
+ }
+
+ if( bSetColor )
+ setColor(mpCairo.get(),renderState.DeviceColor);
+
+ cairo_operator_t compositingMode( CAIRO_OPERATOR_OVER );
+ switch( renderState.CompositeOperation )
+ {
+ case rendering::CompositeOperation::CLEAR:
+ compositingMode = CAIRO_OPERATOR_CLEAR;
+ break;
+ case rendering::CompositeOperation::SOURCE:
+ compositingMode = CAIRO_OPERATOR_SOURCE;
+ break;
+ case rendering::CompositeOperation::DESTINATION:
+ compositingMode = CAIRO_OPERATOR_DEST;
+ break;
+ case rendering::CompositeOperation::OVER:
+ compositingMode = CAIRO_OPERATOR_OVER;
+ break;
+ case rendering::CompositeOperation::UNDER:
+ compositingMode = CAIRO_OPERATOR_DEST;
+ break;
+ case rendering::CompositeOperation::INSIDE:
+ compositingMode = CAIRO_OPERATOR_IN;
+ break;
+ case rendering::CompositeOperation::INSIDE_REVERSE:
+ compositingMode = CAIRO_OPERATOR_OUT;
+ break;
+ case rendering::CompositeOperation::OUTSIDE:
+ compositingMode = CAIRO_OPERATOR_DEST_OVER;
+ break;
+ case rendering::CompositeOperation::OUTSIDE_REVERSE:
+ compositingMode = CAIRO_OPERATOR_DEST_OUT;
+ break;
+ case rendering::CompositeOperation::ATOP:
+ compositingMode = CAIRO_OPERATOR_ATOP;
+ break;
+ case rendering::CompositeOperation::ATOP_REVERSE:
+ compositingMode = CAIRO_OPERATOR_DEST_ATOP;
+ break;
+ case rendering::CompositeOperation::XOR:
+ compositingMode = CAIRO_OPERATOR_XOR;
+ break;
+ case rendering::CompositeOperation::ADD:
+ compositingMode = CAIRO_OPERATOR_ADD;
+ break;
+ case rendering::CompositeOperation::SATURATE:
+ compositingMode = CAIRO_OPERATOR_SATURATE;
+ break;
+ }
+ cairo_set_operator( mpCairo.get(), compositingMode );
+ }
+
+ void CanvasHelper::clear()
+ {
+ SAL_INFO( "canvas.cairo", "clear whole area: " << maSize.getX() << " x " << maSize.getY() );
+
+ if( !mpCairo )
+ return;
+
+ cairo_save( mpCairo.get() );
+
+ cairo_identity_matrix( mpCairo.get() );
+ // this does not really differ from all-zero, as cairo
+ // internally converts to premultiplied alpha. but anyway,
+ // this keeps it consistent with the other canvas impls
+ if( mbHaveAlpha )
+ cairo_set_source_rgba( mpCairo.get(), 1.0, 1.0, 1.0, 0.0 );
+ else
+ cairo_set_source_rgb( mpCairo.get(), 1.0, 1.0, 1.0 );
+ cairo_set_operator( mpCairo.get(), CAIRO_OPERATOR_SOURCE );
+
+ cairo_rectangle( mpCairo.get(), 0, 0, maSize.getX(), maSize.getY() );
+ cairo_fill( mpCairo.get() );
+
+ cairo_restore( mpCairo.get() );
+ }
+
+ void CanvasHelper::drawLine( const rendering::XCanvas* /*pCanvas*/,
+ const geometry::RealPoint2D& aStartPoint,
+ const geometry::RealPoint2D& aEndPoint,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ if( !mpCairo )
+ return;
+
+ cairo_save( mpCairo.get() );
+
+ cairo_set_line_width( mpCairo.get(), 1 );
+
+ useStates( viewState, renderState, true );
+
+ cairo_move_to( mpCairo.get(), aStartPoint.X + 0.5, aStartPoint.Y + 0.5 );
+ cairo_line_to( mpCairo.get(), aEndPoint.X + 0.5, aEndPoint.Y + 0.5 );
+ cairo_stroke( mpCairo.get() );
+
+ cairo_restore( mpCairo.get() );
+ }
+
+ void CanvasHelper::drawBezier( const rendering::XCanvas* ,
+ const geometry::RealBezierSegment2D& aBezierSegment,
+ const geometry::RealPoint2D& aEndPoint,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ if( !mpCairo )
+ return;
+
+ cairo_save( mpCairo.get() );
+
+ cairo_set_line_width( mpCairo.get(), 1 );
+
+ useStates( viewState, renderState, true );
+
+ cairo_move_to( mpCairo.get(), aBezierSegment.Px + 0.5, aBezierSegment.Py + 0.5 );
+ // tdf#99165 correction of control points not needed here, only hairlines drawn
+ // (see cairo_set_line_width above)
+ cairo_curve_to( mpCairo.get(),
+ aBezierSegment.C1x + 0.5, aBezierSegment.C1y + 0.5,
+ aBezierSegment.C2x + 0.5, aBezierSegment.C2y + 0.5,
+ aEndPoint.X + 0.5, aEndPoint.Y + 0.5 );
+ cairo_stroke( mpCairo.get() );
+
+ cairo_restore( mpCairo.get() );
+ }
+
+constexpr OUStringLiteral PARAMETRICPOLYPOLYGON_IMPLEMENTATION_NAME = u"Canvas::ParametricPolyPolygon";
+
+ /** surfaceFromXBitmap Create a surface from XBitmap
+ * @param xBitmap bitmap image that will be used for the surface
+ * @param bHasAlpha will be set to true if resulting surface has alpha
+ *
+ * This is a helper function for the other surfaceFromXBitmap().
+ * This function tries to create surface from xBitmap by checking if xBitmap is CanvasBitmap or SpriteCanvas.
+ *
+ * @return created surface or NULL
+ **/
+ static SurfaceSharedPtr surfaceFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap )
+ {
+ CanvasBitmap* pBitmapImpl = dynamic_cast< CanvasBitmap* >( xBitmap.get() );
+ if( pBitmapImpl )
+ return pBitmapImpl->getSurface();
+
+ SurfaceProvider* pSurfaceProvider = dynamic_cast<SurfaceProvider*>( xBitmap.get() );
+ if( pSurfaceProvider )
+ return pSurfaceProvider->getSurface();
+
+ return SurfaceSharedPtr();
+ }
+
+ static ::BitmapEx bitmapExFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap )
+ {
+ // TODO(F1): Add support for floating point bitmap formats
+ uno::Reference<rendering::XIntegerReadOnlyBitmap> xIntBmp(xBitmap,
+ uno::UNO_QUERY_THROW);
+ ::BitmapEx aBmpEx = vcl::unotools::bitmapExFromXBitmap(xIntBmp);
+ if( !aBmpEx.IsEmpty() )
+ return aBmpEx;
+
+ // TODO(F1): extract pixel from XBitmap interface
+ ENSURE_OR_THROW( false,
+ "bitmapExFromXBitmap(): could not extract BitmapEx" );
+
+ return ::BitmapEx();
+ }
+
+ /** surfaceFromXBitmap Create a surface from XBitmap
+ * @param xBitmap bitmap image that will be used for the surface
+ * @param rDevice reference to the device into which we want to draw
+ * @param data will be filled with alpha data, if xBitmap is alpha/transparent image
+ * @param bHasAlpha will be set to true if resulting surface has alpha
+ *
+ * This function tries various methods for creating a surface from xBitmap. It also uses
+ * the helper function surfaceFromXBitmap( xBitmap, bHasAlpha )
+ *
+ * @return created surface or NULL
+ **/
+ static SurfaceSharedPtr surfaceFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap, const SurfaceProviderRef& rSurfaceProvider, unsigned char*& data, bool& bHasAlpha )
+ {
+ bHasAlpha = xBitmap->hasAlpha();
+ SurfaceSharedPtr pSurface = surfaceFromXBitmap( xBitmap );
+ if( pSurface )
+ data = nullptr;
+ else
+ {
+ ::BitmapEx aBmpEx = bitmapExFromXBitmap(xBitmap);
+ ::Bitmap aBitmap = aBmpEx.GetBitmap();
+
+ // there's no pixmap for alpha bitmap. we might still
+ // use rgb pixmap and only access alpha pixels the
+ // slow way. now we just speedup rgb bitmaps
+ if( !aBmpEx.IsAlpha() )
+ {
+ pSurface = rSurfaceProvider->createSurface( aBitmap );
+ data = nullptr;
+ bHasAlpha = false;
+ }
+
+ if( !pSurface )
+ {
+ tools::Long nWidth;
+ tools::Long nHeight;
+ vcl::bitmap::CanvasCairoExtractBitmapData(aBmpEx, aBitmap, data, bHasAlpha, nWidth, nHeight);
+
+ pSurface = rSurfaceProvider->getOutputDevice()->CreateSurface(
+ CairoSurfaceSharedPtr(
+ cairo_image_surface_create_for_data(
+ data,
+ bHasAlpha ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24,
+ nWidth, nHeight, nWidth*4 ),
+ &cairo_surface_destroy) );
+
+ SAL_INFO( "canvas.cairo","image: " << nWidth << " x " << nHeight << " alpha: " << bHasAlpha);
+ }
+ }
+
+ return pSurface;
+ }
+
+ static void addColorStops( cairo_pattern_t* pPattern, const uno::Sequence< uno::Sequence< double > >& rColors, const uno::Sequence< double >& rStops, bool bReverseStops )
+ {
+ int i;
+
+ OSL_ASSERT( rColors.getLength() == rStops.getLength() );
+
+ for( i = 0; i < rColors.getLength(); i++ )
+ {
+ const uno::Sequence< double >& rColor( rColors[i] );
+ float stop = bReverseStops ? 1 - rStops[i] : rStops[i];
+ if( rColor.getLength() == 3 )
+ cairo_pattern_add_color_stop_rgb( pPattern, stop, rColor[0], rColor[1], rColor[2] );
+ else if( rColor.getLength() == 4 )
+ {
+ double alpha = rColor[3];
+ // cairo expects premultiplied alpha
+ cairo_pattern_add_color_stop_rgba( pPattern, stop, rColor[0]*alpha, rColor[1]*alpha, rColor[2]*alpha, alpha );
+ }
+ }
+ }
+
+ static uno::Sequence<double> lerp(const uno::Sequence<double>& rLeft, const uno::Sequence<double>& rRight, double fAlpha)
+ {
+ if( rLeft.getLength() == 3 )
+ {
+ return
+ {
+ basegfx::utils::lerp(rLeft[0],rRight[0],fAlpha),
+ basegfx::utils::lerp(rLeft[1],rRight[1],fAlpha),
+ basegfx::utils::lerp(rLeft[2],rRight[2],fAlpha)
+ };
+ }
+ else if( rLeft.getLength() == 4 )
+ {
+ return
+ {
+ basegfx::utils::lerp(rLeft[0],rRight[0],fAlpha),
+ basegfx::utils::lerp(rLeft[1],rRight[1],fAlpha),
+ basegfx::utils::lerp(rLeft[2],rRight[2],fAlpha),
+ basegfx::utils::lerp(rLeft[3],rRight[3],fAlpha)
+ };
+ }
+
+ return {};
+ }
+
+ static cairo_pattern_t* patternFromParametricPolyPolygon( ::canvas::ParametricPolyPolygon const & rPolygon )
+ {
+ cairo_pattern_t* pPattern = nullptr;
+ const ::canvas::ParametricPolyPolygon::Values aValues = rPolygon.getValues();
+ double x0, x1, y0, y1, cx, cy, r0, r1;
+
+ switch( aValues.meType )
+ {
+ case ::canvas::ParametricPolyPolygon::GradientType::Linear:
+ x0 = 0;
+ y0 = 0;
+ x1 = 1;
+ y1 = 0;
+ pPattern = cairo_pattern_create_linear( x0, y0, x1, y1 );
+ addColorStops( pPattern, aValues.maColors, aValues.maStops, false );
+ break;
+
+ case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
+ cx = 0;
+ cy = 0;
+ r0 = 0;
+ r1 = 1;
+
+ pPattern = cairo_pattern_create_radial( cx, cy, r0, cy, cy, r1 );
+ addColorStops( pPattern, aValues.maColors, aValues.maStops, true );
+ break;
+ default:
+ break;
+ }
+
+ return pPattern;
+ }
+
+ static void doOperation( Operation aOperation,
+ cairo_t* pCairo,
+ const uno::Sequence< rendering::Texture >* pTextures,
+ const SurfaceProviderRef& pDevice,
+ const basegfx::B2DRange& rBounds )
+ {
+ switch( aOperation )
+ {
+ case Fill:
+ /* TODO: multitexturing */
+ if( pTextures )
+ {
+ const css::rendering::Texture& aTexture ( (*pTextures)[0] );
+ if( aTexture.Bitmap.is() )
+ {
+ unsigned char* data = nullptr;
+ bool bHasAlpha = false;
+ SurfaceSharedPtr pSurface = surfaceFromXBitmap( (*pTextures)[0].Bitmap, pDevice, data, bHasAlpha );
+
+ if( pSurface )
+ {
+ cairo_pattern_t* pPattern;
+
+ cairo_save( pCairo );
+
+ css::geometry::AffineMatrix2D aTransform( aTexture.AffineTransform );
+ cairo_matrix_t aScaleMatrix, aTextureMatrix, aScaledTextureMatrix;
+
+ cairo_matrix_init( &aTextureMatrix,
+ aTransform.m00, aTransform.m10, aTransform.m01,
+ aTransform.m11, aTransform.m02, aTransform.m12);
+
+ geometry::IntegerSize2D aSize = aTexture.Bitmap->getSize();
+
+ cairo_matrix_init_scale( &aScaleMatrix, 1.0/aSize.Width, 1.0/aSize.Height );
+ cairo_matrix_multiply( &aScaledTextureMatrix, &aTextureMatrix, &aScaleMatrix );
+ cairo_matrix_invert( &aScaledTextureMatrix );
+
+ // we don't care about repeat mode yet, so the workaround is disabled for now
+ pPattern = cairo_pattern_create_for_surface( pSurface->getCairoSurface().get() );
+
+ if( aTexture.RepeatModeX == rendering::TexturingMode::REPEAT &&
+ aTexture.RepeatModeY == rendering::TexturingMode::REPEAT )
+ {
+ cairo_pattern_set_extend( pPattern, CAIRO_EXTEND_REPEAT );
+ }
+ else if ( aTexture.RepeatModeX == rendering::TexturingMode::NONE &&
+ aTexture.RepeatModeY == rendering::TexturingMode::NONE )
+ {
+ cairo_pattern_set_extend( pPattern, CAIRO_EXTEND_NONE );
+ }
+ else if ( aTexture.RepeatModeX == rendering::TexturingMode::CLAMP &&
+ aTexture.RepeatModeY == rendering::TexturingMode::CLAMP )
+ {
+ cairo_pattern_set_extend( pPattern, CAIRO_EXTEND_PAD );
+ }
+
+ aScaledTextureMatrix.x0 = basegfx::fround( aScaledTextureMatrix.x0 );
+ aScaledTextureMatrix.y0 = basegfx::fround( aScaledTextureMatrix.y0 );
+
+ double x1, y1, x2, y2;
+ cairo_path_extents(pCairo, &x1, &y1, &x2, &y2);
+ aScaledTextureMatrix.x0 -= (x1 * aScaledTextureMatrix.xx);
+ aScaledTextureMatrix.y0 -= (y1 * aScaledTextureMatrix.yy);
+
+ cairo_pattern_set_matrix( pPattern, &aScaledTextureMatrix );
+
+ cairo_set_source( pCairo, pPattern );
+ if( !bHasAlpha )
+ cairo_set_operator( pCairo, CAIRO_OPERATOR_SOURCE );
+ cairo_fill( pCairo );
+
+ cairo_restore( pCairo );
+
+ cairo_pattern_destroy( pPattern );
+ }
+
+ if( data )
+ free( data );
+ }
+ else if( aTexture.Gradient.is() )
+ {
+ uno::Reference< lang::XServiceInfo > xRef( aTexture.Gradient, uno::UNO_QUERY );
+
+ SAL_INFO( "canvas.cairo", "gradient fill" );
+ if( xRef.is() && xRef->getImplementationName() == PARAMETRICPOLYPOLYGON_IMPLEMENTATION_NAME )
+ {
+ // TODO(Q1): Maybe use dynamic_cast here
+
+ // TODO(E1): Return value
+ // TODO(F1): FillRule
+ SAL_INFO( "canvas.cairo", "known implementation" );
+
+ ::canvas::ParametricPolyPolygon* pPolyImpl = static_cast< ::canvas::ParametricPolyPolygon* >( aTexture.Gradient.get() );
+ css::geometry::AffineMatrix2D aTransform( aTexture.AffineTransform );
+ cairo_matrix_t aTextureMatrix;
+
+ cairo_matrix_init( &aTextureMatrix,
+ aTransform.m00, aTransform.m10, aTransform.m01,
+ aTransform.m11, aTransform.m02, aTransform.m12);
+ if( pPolyImpl->getValues().meType == canvas::ParametricPolyPolygon::GradientType::Rectangular )
+ {
+ // no general path gradient yet in cairo; emulate then
+ cairo_save( pCairo );
+ cairo_clip( pCairo );
+
+ // fill bound rect with start color
+ cairo_rectangle( pCairo, rBounds.getMinX(), rBounds.getMinY(),
+ rBounds.getWidth(), rBounds.getHeight() );
+ setColor(pCairo,pPolyImpl->getValues().maColors[0]);
+ cairo_fill(pCairo);
+
+ cairo_transform( pCairo, &aTextureMatrix );
+
+ // longest line in gradient bound rect
+ const unsigned int nGradientSize(
+ static_cast<unsigned int>(
+ ::basegfx::B2DVector(rBounds.getMinimum() - rBounds.getMaximum()).getLength() + 1.0 ) );
+
+ // typical number for pixel of the same color (strip size)
+ const unsigned int nStripSize( nGradientSize < 50 ? 2 : 4 );
+
+ // use at least three steps, and at utmost the number of color
+ // steps
+ const unsigned int nStepCount(
+ std::max(
+ 3U,
+ std::min(
+ nGradientSize / nStripSize,
+ 128U )) + 1 );
+
+ const uno::Sequence<double>* pColors=&pPolyImpl->getValues().maColors[0];
+ basegfx::utils::KeyStopLerp aLerper(pPolyImpl->getValues().maStops);
+ for( unsigned int i=1; i<nStepCount; ++i )
+ {
+ const double fT( i/double(nStepCount) );
+
+ std::ptrdiff_t nIndex;
+ double fAlpha;
+ std::tie(nIndex,fAlpha)=aLerper.lerp(fT);
+
+ setColor(pCairo, lerp(pColors[nIndex], pColors[nIndex+1], fAlpha));
+ cairo_rectangle( pCairo, -1+fT, -1+fT, 2-2*fT, 2-2*fT );
+ cairo_fill(pCairo);
+ }
+
+ cairo_restore( pCairo );
+ }
+ else
+ {
+ cairo_pattern_t* pPattern = patternFromParametricPolyPolygon( *pPolyImpl );
+
+ if( pPattern )
+ {
+ SAL_INFO( "canvas.cairo", "filling with pattern" );
+
+ cairo_save( pCairo );
+
+ cairo_transform( pCairo, &aTextureMatrix );
+ cairo_set_source( pCairo, pPattern );
+ cairo_fill( pCairo );
+ cairo_restore( pCairo );
+
+ cairo_pattern_destroy( pPattern );
+ }
+ }
+ }
+ }
+ }
+ else
+ cairo_fill( pCairo );
+ SAL_INFO( "canvas.cairo", "fill");
+ break;
+ case Stroke:
+ cairo_stroke( pCairo );
+ SAL_INFO( "canvas.cairo", "stroke");
+ break;
+ case Clip:
+ cairo_clip( pCairo );
+ SAL_INFO( "canvas.cairo", "clip");
+ break;
+ }
+ }
+
+ static void clipNULL( cairo_t *pCairo )
+ {
+ SAL_INFO( "canvas.cairo", "clipNULL");
+ cairo_matrix_t aOrigMatrix, aIdentityMatrix;
+
+ /* we set identity matrix here to overcome bug in cairo 0.9.2
+ where XCreatePixmap is called with zero width and height.
+
+ it also reaches faster path in cairo clipping code.
+ */
+ cairo_matrix_init_identity( &aIdentityMatrix );
+ cairo_get_matrix( pCairo, &aOrigMatrix );
+ cairo_set_matrix( pCairo, &aIdentityMatrix );
+
+ cairo_reset_clip( pCairo );
+ cairo_rectangle( pCairo, 0, 0, 1, 1 );
+ cairo_clip( pCairo );
+ cairo_rectangle( pCairo, 2, 0, 1, 1 );
+ cairo_clip( pCairo );
+
+ /* restore the original matrix */
+ cairo_set_matrix( pCairo, &aOrigMatrix );
+ }
+
+ void doPolyPolygonImplementation( const ::basegfx::B2DPolyPolygon& aPolyPolygon,
+ Operation aOperation,
+ cairo_t* pCairo,
+ const uno::Sequence< rendering::Texture >* pTextures,
+ const SurfaceProviderRef& pDevice,
+ rendering::FillRule eFillrule )
+ {
+ if( pTextures )
+ ENSURE_ARG_OR_THROW( pTextures->hasElements(),
+ "CanvasHelper::fillTexturedPolyPolygon: empty texture sequence");
+
+ bool bOpToDo = false;
+ cairo_matrix_t aOrigMatrix, aIdentityMatrix;
+ double nX, nY, nBX, nBY, nAX, nAY, nLastX(0.0), nLastY(0.0);
+
+ cairo_get_matrix( pCairo, &aOrigMatrix );
+ cairo_matrix_init_identity( &aIdentityMatrix );
+ cairo_set_matrix( pCairo, &aIdentityMatrix );
+
+ cairo_set_fill_rule( pCairo,
+ eFillrule == rendering::FillRule_EVEN_ODD ?
+ CAIRO_FILL_RULE_EVEN_ODD : CAIRO_FILL_RULE_WINDING );
+
+ for( sal_uInt32 nPolygonIndex = 0; nPolygonIndex < aPolyPolygon.count(); nPolygonIndex++ )
+ {
+ const ::basegfx::B2DPolygon& aPolygon( aPolyPolygon.getB2DPolygon( nPolygonIndex ) );
+ const sal_uInt32 nPointCount( aPolygon.count() );
+ // to correctly render closed curves, need to output first
+ // point twice (so output one additional point)
+ const sal_uInt32 nExtendedPointCount( nPointCount +
+ int(aPolygon.isClosed() && aPolygon.areControlPointsUsed()) );
+
+ if( nPointCount > 1)
+ {
+ bool bIsBezier = aPolygon.areControlPointsUsed();
+ ::basegfx::B2DPoint aA, aB, aP;
+
+ for( sal_uInt32 j=0; j < nExtendedPointCount; j++ )
+ {
+ aP = aPolygon.getB2DPoint( j % nPointCount );
+
+ nX = aP.getX();
+ nY = aP.getY();
+ cairo_matrix_transform_point( &aOrigMatrix, &nX, &nY );
+
+ if (!bIsBezier && aOperation == Clip)
+ {
+ nX = basegfx::fround( nX );
+ nY = basegfx::fround( nY );
+ }
+
+ if( aOperation == Stroke )
+ {
+ nX += 0.5;
+ nY += 0.5;
+ }
+
+ if( j==0 )
+ {
+ cairo_move_to( pCairo, nX, nY );
+ SAL_INFO( "canvas.cairo", "move to " << nX << "," << nY );
+ }
+ else
+ {
+ if( bIsBezier )
+ {
+ aA = aPolygon.getNextControlPoint( (j-1) % nPointCount );
+ aB = aPolygon.getPrevControlPoint( j % nPointCount );
+
+ nAX = aA.getX();
+ nAY = aA.getY();
+ nBX = aB.getX();
+ nBY = aB.getY();
+
+ cairo_matrix_transform_point( &aOrigMatrix, &nAX, &nAY );
+ cairo_matrix_transform_point( &aOrigMatrix, &nBX, &nBY );
+
+ if( aOperation == Stroke )
+ {
+ nAX += 0.5;
+ nAY += 0.5;
+ nBX += 0.5;
+ nBY += 0.5;
+ }
+
+ // tdf#99165 if the control points are 'empty', create the mathematical
+ // correct replacement ones to avoid problems with the graphical sub-system
+ // tdf#101026 The 1st attempt to create a mathematically correct replacement control
+ // vector was wrong. Best alternative is one as close as possible which means short.
+ if (basegfx::fTools::equal(nAX, nLastX) && basegfx::fTools::equal(nAY, nLastY))
+ {
+ nAX = nLastX + ((nBX - nLastX) * 0.0005);
+ nAY = nLastY + ((nBY - nLastY) * 0.0005);
+ }
+
+ if(basegfx::fTools::equal(nBX, nX) && basegfx::fTools::equal(nBY, nY))
+ {
+ nBX = nX + ((nAX - nX) * 0.0005);
+ nBY = nY + ((nAY - nY) * 0.0005);
+ }
+
+ cairo_curve_to( pCairo, nAX, nAY, nBX, nBY, nX, nY );
+ }
+ else
+ {
+ cairo_line_to( pCairo, nX, nY );
+ SAL_INFO( "canvas.cairo", "line to " << nX << "," << nY );
+ }
+ bOpToDo = true;
+ }
+
+ nLastX = nX;
+ nLastY = nY;
+ }
+
+ if( aPolygon.isClosed() )
+ cairo_close_path( pCairo );
+
+ }
+ else
+ {
+ SAL_INFO( "canvas.cairo", "empty polygon for op: " << aOperation );
+ if( aOperation == Clip )
+ {
+ clipNULL( pCairo );
+
+ return;
+ }
+ }
+ }
+
+ if( aOperation == Fill && pTextures )
+ {
+ cairo_set_matrix( pCairo, &aOrigMatrix );
+ doOperation( aOperation, pCairo, pTextures, pDevice, aPolyPolygon.getB2DRange() );
+ cairo_set_matrix( pCairo, &aIdentityMatrix );
+ }
+
+ if( bOpToDo && ( aOperation != Fill || !pTextures ) )
+ doOperation( aOperation, pCairo, pTextures, pDevice, aPolyPolygon.getB2DRange() );
+
+ cairo_set_matrix( pCairo, &aOrigMatrix );
+
+ if( aPolyPolygon.count() == 0 && aOperation == Clip )
+ clipNULL( pCairo );
+ }
+
+ void CanvasHelper::doPolyPolygonPath( const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ Operation aOperation,
+ bool bNoLineJoin,
+ const uno::Sequence< rendering::Texture >* pTextures ) const
+ {
+ const ::basegfx::B2DPolyPolygon& rPolyPoly(
+ ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
+
+ cairo_t* pCairo = mpCairo.get();
+
+ if(bNoLineJoin && aOperation == Stroke)
+ {
+ // emulate rendering::PathJoinType::NONE by painting single edges
+ for(sal_uInt32 a(0); a < rPolyPoly.count(); a++)
+ {
+ const basegfx::B2DPolygon& aCandidate(rPolyPoly.getB2DPolygon(a));
+ const sal_uInt32 nPointCount(aCandidate.count());
+
+ if(nPointCount)
+ {
+ const sal_uInt32 nEdgeCount(aCandidate.isClosed() ? nPointCount: nPointCount - 1);
+ basegfx::B2DPolygon aEdge;
+ aEdge.append(aCandidate.getB2DPoint(0));
+ aEdge.append(basegfx::B2DPoint(0.0, 0.0));
+
+ for(sal_uInt32 b(0); b < nEdgeCount; b++)
+ {
+ const sal_uInt32 nNextIndex((b + 1) % nPointCount);
+ aEdge.setB2DPoint(1, aCandidate.getB2DPoint(nNextIndex));
+ aEdge.setNextControlPoint(0, aCandidate.getNextControlPoint(b % nPointCount));
+ aEdge.setPrevControlPoint(1, aCandidate.getPrevControlPoint(nNextIndex));
+
+ doPolyPolygonImplementation( basegfx::B2DPolyPolygon(aEdge),
+ aOperation,
+ pCairo, pTextures,
+ mpSurfaceProvider,
+ xPolyPolygon->getFillRule() );
+
+ // prepare next step
+ aEdge.setB2DPoint(0, aEdge.getB2DPoint(1));
+ }
+ }
+ }
+ }
+ else
+ {
+ doPolyPolygonImplementation( rPolyPoly, aOperation,
+ pCairo, pTextures,
+ mpSurfaceProvider,
+ xPolyPolygon->getFillRule() );
+ }
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ if( mpCairo )
+ {
+ cairo_save( mpCairo.get() );
+
+ cairo_set_line_width( mpCairo.get(), 1 );
+
+ useStates( viewState, renderState, true );
+ doPolyPolygonPath( xPolyPolygon, Stroke );
+
+ cairo_restore( mpCairo.get() );
+ }
+ else
+ SAL_INFO( "canvas.cairo", "CanvasHelper called after it was disposed");
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "drawPolyPolygon" );
+#endif
+
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokePolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const rendering::StrokeAttributes& strokeAttributes )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ if( mpCairo )
+ {
+ cairo_save( mpCairo.get() );
+
+ useStates( viewState, renderState, true );
+
+ cairo_matrix_t aMatrix;
+ cairo_get_matrix( mpCairo.get(), &aMatrix );
+ double scaleFactorX = 1;
+ double scaleFactorY = 0;
+ cairo_matrix_transform_distance( &aMatrix, &scaleFactorX, &scaleFactorY );
+ double scaleFactor = basegfx::B2DVector( scaleFactorX, scaleFactorY ).getLength();
+ cairo_set_line_width( mpCairo.get(), strokeAttributes.StrokeWidth * scaleFactor );
+
+ cairo_set_miter_limit( mpCairo.get(), strokeAttributes.MiterLimit );
+
+ // FIXME: cairo doesn't handle end cap so far (rodo)
+ switch( strokeAttributes.StartCapType )
+ {
+ case rendering::PathCapType::BUTT:
+ cairo_set_line_cap( mpCairo.get(), CAIRO_LINE_CAP_BUTT );
+ break;
+ case rendering::PathCapType::ROUND:
+ cairo_set_line_cap( mpCairo.get(), CAIRO_LINE_CAP_ROUND );
+ break;
+ case rendering::PathCapType::SQUARE:
+ cairo_set_line_cap( mpCairo.get(), CAIRO_LINE_CAP_SQUARE );
+ break;
+ }
+
+ bool bNoLineJoin(false);
+
+ switch( strokeAttributes.JoinType )
+ {
+ case rendering::PathJoinType::NONE:
+ bNoLineJoin = true;
+ [[fallthrough]]; // cairo doesn't have join type NONE so we use MITER as it's pretty close
+ case rendering::PathJoinType::MITER:
+ cairo_set_line_join( mpCairo.get(), CAIRO_LINE_JOIN_MITER );
+ break;
+ case rendering::PathJoinType::ROUND:
+ cairo_set_line_join( mpCairo.get(), CAIRO_LINE_JOIN_ROUND );
+ break;
+ case rendering::PathJoinType::BEVEL:
+ cairo_set_line_join( mpCairo.get(), CAIRO_LINE_JOIN_BEVEL );
+ break;
+ }
+
+ //tdf#103026 If the scaling is 0, then all dashes become zero so
+ //cairo will set the cairo_t status to CAIRO_STATUS_INVALID_DASH
+ //and no further drawing will occur
+ if (strokeAttributes.DashArray.hasElements() && scaleFactor > 0.0)
+ {
+ auto aDashArray(comphelper::sequenceToContainer<std::vector<double>>(strokeAttributes.DashArray));
+ for (auto& rDash : aDashArray)
+ rDash *= scaleFactor;
+ cairo_set_dash(mpCairo.get(), aDashArray.data(), aDashArray.size(), 0);
+ }
+
+ // TODO(rodo) use LineArray of strokeAttributes
+
+ doPolyPolygonPath( xPolyPolygon, Stroke, bNoLineJoin );
+
+ cairo_restore( mpCairo.get() );
+ }
+ else
+ SAL_INFO( "canvas.cairo", "CanvasHelper called after it was disposed");
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "strokePolyPolygon" );
+#endif
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTexturedPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& /*xPolyPolygon*/,
+ const rendering::ViewState& /*viewState*/,
+ const rendering::RenderState& /*renderState*/,
+ const uno::Sequence< rendering::Texture >& /*textures*/,
+ const rendering::StrokeAttributes& /*strokeAttributes*/ )
+ {
+ // TODO
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTextureMappedPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& /*xPolyPolygon*/,
+ const rendering::ViewState& /*viewState*/,
+ const rendering::RenderState& /*renderState*/,
+ const uno::Sequence< rendering::Texture >& /*textures*/,
+ const uno::Reference< geometry::XMapping2D >& /*xMapping*/,
+ const rendering::StrokeAttributes& /*strokeAttributes*/ )
+ {
+ // TODO
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XPolyPolygon2D > CanvasHelper::queryStrokeShapes( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& /*xPolyPolygon*/,
+ const rendering::ViewState& /*viewState*/,
+ const rendering::RenderState& /*renderState*/,
+ const rendering::StrokeAttributes& /*strokeAttributes*/ )
+ {
+ // TODO
+ return uno::Reference< rendering::XPolyPolygon2D >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ if( mpCairo )
+ {
+ cairo_save( mpCairo.get() );
+
+ useStates( viewState, renderState, true );
+ doPolyPolygonPath( xPolyPolygon, Fill );
+
+ cairo_restore( mpCairo.get() );
+ }
+ else
+ SAL_INFO( "canvas.cairo", "CanvasHelper called after it was disposed");
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "fillPolyPolygon" );
+#endif
+
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTexturedPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const uno::Sequence< rendering::Texture >& textures )
+ {
+ if( mpCairo )
+ {
+ cairo_save( mpCairo.get() );
+
+ useStates( viewState, renderState, true );
+ doPolyPolygonPath( xPolyPolygon, Fill, false, &textures );
+
+ cairo_restore( mpCairo.get() );
+ }
+
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTextureMappedPolyPolygon( const rendering::XCanvas* ,
+ const uno::Reference< rendering::XPolyPolygon2D >& /*xPolyPolygon*/,
+ const rendering::ViewState& /*viewState*/,
+ const rendering::RenderState& /*renderState*/,
+ const uno::Sequence< rendering::Texture >& /*textures*/,
+ const uno::Reference< geometry::XMapping2D >& /*xMapping*/ )
+ {
+ // TODO
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::implDrawBitmapSurface( const rendering::XCanvas* pCanvas,
+ const SurfaceSharedPtr& pInputSurface,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const geometry::IntegerSize2D& rSize,
+ bool bModulateColors,
+ bool bHasAlpha )
+ {
+ SurfaceSharedPtr pSurface=pInputSurface;
+ uno::Reference< rendering::XCachedPrimitive > rv;
+ geometry::IntegerSize2D aBitmapSize = rSize;
+
+ if( mpCairo )
+ {
+ cairo_save( mpCairo.get() );
+
+ cairo_rectangle( mpCairo.get(), 0, 0, maSize.getX(), maSize.getY() );
+ cairo_clip( mpCairo.get() );
+
+ useStates( viewState, renderState, true );
+
+ cairo_matrix_t aMatrix;
+
+ cairo_get_matrix( mpCairo.get(), &aMatrix );
+ if( ! ::rtl::math::approxEqual( aMatrix.xx, 1 ) &&
+ ! ::rtl::math::approxEqual( aMatrix.yy, 1 ) &&
+ ::rtl::math::approxEqual( aMatrix.x0, 0 ) &&
+ ::rtl::math::approxEqual( aMatrix.y0, 0 ) &&
+ basegfx::fround( rSize.Width * aMatrix.xx ) > 8 &&
+ basegfx::fround( rSize.Height* aMatrix.yy ) > 8 )
+ {
+ double dWidth, dHeight;
+
+ dWidth = basegfx::fround( rSize.Width * aMatrix.xx );
+ dHeight = basegfx::fround( rSize.Height* aMatrix.yy );
+ aBitmapSize.Width = static_cast<sal_Int32>( dWidth );
+ aBitmapSize.Height = static_cast<sal_Int32>( dHeight );
+
+ SurfaceSharedPtr pScaledSurface = mpSurfaceProvider->createSurface(
+ ::basegfx::B2ISize( aBitmapSize.Width, aBitmapSize.Height ),
+ bHasAlpha ? CAIRO_CONTENT_COLOR_ALPHA : CAIRO_CONTENT_COLOR );
+ CairoSharedPtr pCairo = pScaledSurface->getCairo();
+
+ cairo_set_operator( pCairo.get(), CAIRO_OPERATOR_SOURCE );
+ // add 0.5px to size to avoid rounding errors in cairo, leading sometimes to random data on the image right/bottom borders
+ cairo_scale( pCairo.get(), (dWidth+0.5)/rSize.Width, (dHeight+0.5)/rSize.Height );
+ cairo_set_source_surface( pCairo.get(), pSurface->getCairoSurface().get(), 0, 0 );
+ cairo_paint( pCairo.get() );
+
+ pSurface = pScaledSurface;
+
+ aMatrix.xx = aMatrix.yy = 1;
+ cairo_set_matrix( mpCairo.get(), &aMatrix );
+
+ rv.set(
+ new CachedBitmap( pSurface, viewState, renderState,
+ // cast away const, need to
+ // change refcount (as this is
+ // ~invisible to client code,
+ // still logically const)
+ const_cast< rendering::XCanvas* >(pCanvas)) );
+ }
+
+ if( !bHasAlpha && mbHaveAlpha )
+ {
+ double x, y, width, height;
+
+ x = y = 0;
+ width = aBitmapSize.Width;
+ height = aBitmapSize.Height;
+ cairo_matrix_transform_point( &aMatrix, &x, &y );
+ cairo_matrix_transform_distance( &aMatrix, &width, &height );
+
+ // in case the bitmap doesn't have alpha and covers whole area
+ // we try to change surface to plain rgb
+ SAL_INFO( "canvas.cairo","chance to change surface to rgb, " << x << ", " << y << ", " << width << " x " << height << " (" << maSize.getX() << " x " << maSize.getY() << ")" );
+ if( x <= 0 && y <= 0 && x + width >= maSize.getX() && y + height >= maSize.getY() )
+ {
+ SAL_INFO( "canvas.cairo","trying to change surface to rgb");
+ if( mpSurfaceProvider ) {
+ SurfaceSharedPtr pNewSurface = mpSurfaceProvider->changeSurface();
+
+ if( pNewSurface )
+ setSurface( pNewSurface, false );
+
+ // set state to new mpCairo.get()
+ useStates( viewState, renderState, true );
+ // use the possibly modified matrix
+ cairo_set_matrix( mpCairo.get(), &aMatrix );
+ }
+ }
+ }
+
+ cairo_set_source_surface( mpCairo.get(), pSurface->getCairoSurface().get(), 0, 0 );
+ if( !bHasAlpha &&
+ ::rtl::math::approxEqual( aMatrix.xx, 1 ) &&
+ ::rtl::math::approxEqual( aMatrix.yy, 1 ) &&
+ ::rtl::math::approxEqual( aMatrix.x0, 0 ) &&
+ ::rtl::math::approxEqual( aMatrix.y0, 0 ) )
+ cairo_set_operator( mpCairo.get(), CAIRO_OPERATOR_SOURCE );
+ cairo_pattern_set_extend( cairo_get_source(mpCairo.get()), CAIRO_EXTEND_PAD );
+ cairo_rectangle( mpCairo.get(), 0, 0, aBitmapSize.Width, aBitmapSize.Height );
+ cairo_clip( mpCairo.get() );
+
+ // Use cairo_matrix_transform_distance() to determine the scaling, as that works even if
+ // the matrix also has rotation.
+ double fPixelWidth = rSize.Width;
+ double fPixelHeight = rSize.Height;
+ cairo_matrix_transform_distance(&aMatrix, &fPixelWidth, &fPixelHeight);
+ int nPixelWidth = std::round(fPixelWidth);
+ int nPixelHeight = std::round(fPixelHeight);
+ if (std::abs(nPixelWidth) > 0 && std::abs(nPixelHeight) > 0)
+ {
+ // Only render the image if it's at least 1x1 px sized.
+ if (bModulateColors)
+ cairo_paint_with_alpha(mpCairo.get(), renderState.DeviceColor[3]);
+ else
+ {
+ cairo_paint(mpCairo.get());
+ if (cairo_status(mpCairo.get()) != CAIRO_STATUS_SUCCESS)
+ {
+ SAL_WARN("canvas.cairo", "cairo_paint() failed: " << cairo_status_to_string(
+ cairo_status(mpCairo.get())));
+ }
+ }
+ }
+ cairo_restore( mpCairo.get() );
+ }
+ else
+ SAL_INFO( "canvas.cairo", "CanvasHelper called after it was disposed");
+
+ return rv; // uno::Reference< rendering::XCachedPrimitive >(NULL);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmap( const rendering::XCanvas* pCanvas,
+ const uno::Reference< rendering::XBitmap >& xBitmap,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ uno::Reference< rendering::XCachedPrimitive > rv;
+ unsigned char* data = nullptr;
+ bool bHasAlpha = false;
+ SurfaceSharedPtr pSurface = surfaceFromXBitmap( xBitmap, mpSurfaceProvider, data, bHasAlpha );
+ geometry::IntegerSize2D aSize = xBitmap->getSize();
+
+ if( pSurface )
+ {
+ rv = implDrawBitmapSurface( pCanvas, pSurface, viewState, renderState, aSize, false, bHasAlpha );
+
+ if( data )
+ free( data );
+ }
+ else
+ rv.set(nullptr);
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "drawBitmap" );
+#endif
+
+ return rv;
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmapModulated( const rendering::XCanvas* pCanvas,
+ const uno::Reference< rendering::XBitmap >& xBitmap,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ uno::Reference< rendering::XCachedPrimitive > rv;
+ unsigned char* data = nullptr;
+ bool bHasAlpha = false;
+ SurfaceSharedPtr pSurface = surfaceFromXBitmap( xBitmap, mpSurfaceProvider, data, bHasAlpha );
+ geometry::IntegerSize2D aSize = xBitmap->getSize();
+
+ if( pSurface )
+ {
+ rv = implDrawBitmapSurface( pCanvas, pSurface, viewState, renderState, aSize, true, bHasAlpha );
+
+ if( data )
+ free( data );
+ }
+ else
+ rv.set(nullptr);
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "drawBitmap" );
+#endif
+
+ return rv;
+ }
+
+
+ geometry::IntegerSize2D CanvasHelper::getSize() const
+ {
+ if( !mpSurfaceProvider )
+ return geometry::IntegerSize2D(1, 1); // we're disposed
+
+ return ::basegfx::unotools::integerSize2DFromB2ISize( maSize );
+ }
+
+ uno::Reference< rendering::XBitmap > CanvasHelper::getScaledBitmap( const geometry::RealSize2D& newSize,
+ bool /*beFast*/ )
+ {
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ struct timespec aTimer;
+ mxDevice->startPerfTrace( &aTimer );
+#endif
+
+ if( mpCairo )
+ {
+ return uno::Reference< rendering::XBitmap >( new CanvasBitmap( ::basegfx::B2ISize( ::canvas::tools::roundUp( newSize.Width ),
+ ::canvas::tools::roundUp( newSize.Height ) ),
+ mpSurfaceProvider, mpDevice, false ) );
+ }
+ else
+ SAL_INFO( "canvas.cairo", "CanvasHelper called after it was disposed");
+
+#ifdef CAIRO_CANVAS_PERF_TRACE
+ mxDevice->stopPerfTrace( &aTimer, "getScaledBitmap" );
+#endif
+
+ return uno::Reference< rendering::XBitmap >();
+ }
+
+ uno::Sequence< sal_Int8 > CanvasHelper::getData( rendering::IntegerBitmapLayout& aLayout,
+ const geometry::IntegerRectangle2D& rect )
+ {
+ if( mpCairo )
+ {
+ const sal_Int32 nWidth( rect.X2 - rect.X1 );
+ const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
+ const cairo_format_t eFormat( mbHaveAlpha ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24 );
+ uno::Sequence< sal_Int8 > aRes( 4*nWidth*nHeight );
+ sal_Int8* pData = aRes.getArray();
+ cairo_surface_t* pImageSurface = cairo_image_surface_create_for_data( reinterpret_cast<unsigned char *>(pData),
+ eFormat,
+ nWidth, nHeight, 4*nWidth );
+ cairo_t* pCairo = cairo_create( pImageSurface );
+ cairo_set_source_surface( pCairo, mpSurface->getCairoSurface().get(), -rect.X1, -rect.Y1);
+ cairo_paint( pCairo );
+ cairo_destroy( pCairo );
+ cairo_surface_destroy( pImageSurface );
+
+ aLayout = impl_getMemoryLayout( nWidth, nHeight );
+
+ return aRes;
+ }
+
+ return uno::Sequence< sal_Int8 >();
+ }
+
+ uno::Sequence< sal_Int8 > CanvasHelper::getPixel( rendering::IntegerBitmapLayout& /*bitmapLayout*/,
+ const geometry::IntegerPoint2D& /*pos*/ )
+ {
+ return uno::Sequence< sal_Int8 >();
+ }
+
+ namespace
+ {
+ class CairoColorSpace : public cppu::WeakImplHelper< css::rendering::XIntegerBitmapColorSpace >
+ {
+ private:
+ uno::Sequence< sal_Int8 > maComponentTags;
+ uno::Sequence< sal_Int32 > maBitCounts;
+
+ virtual ::sal_Int8 SAL_CALL getType( ) override
+ {
+ return rendering::ColorSpaceType::RGB;
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL getComponentTags( ) override
+ {
+ return maComponentTags;
+ }
+ virtual ::sal_Int8 SAL_CALL getRenderingIntent( ) override
+ {
+ return rendering::RenderingIntent::PERCEPTUAL;
+ }
+ virtual uno::Sequence< beans::PropertyValue > SAL_CALL getProperties( ) override
+ {
+ return uno::Sequence< beans::PropertyValue >();
+ }
+ virtual uno::Sequence< double > SAL_CALL convertColorSpace( const uno::Sequence< double >& deviceColor,
+ const uno::Reference< rendering::XColorSpace >& targetColorSpace ) override
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertToARGB(deviceColor));
+ return targetColorSpace->convertFromARGB(aIntermediate);
+ }
+ virtual uno::Sequence< rendering::RGBColor > SAL_CALL convertToRGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ const double* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::RGBColor > aRes(nLen/4);
+ rendering::RGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ const double fAlpha(pIn[3]);
+ if( fAlpha == 0.0 )
+ *pOut++ = rendering::RGBColor(0.0, 0.0, 0.0);
+ else
+ *pOut++ = rendering::RGBColor(pIn[2]/fAlpha,pIn[1]/fAlpha,pIn[0]/fAlpha);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertToARGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ const double* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ const double fAlpha(pIn[3]);
+ if( fAlpha == 0.0 )
+ *pOut++ = rendering::ARGBColor(0.0, 0.0, 0.0, 0.0);
+ else
+ *pOut++ = rendering::ARGBColor(fAlpha,pIn[2]/fAlpha,pIn[1]/fAlpha,pIn[0]/fAlpha);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertToPARGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ const double* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::ARGBColor(pIn[3],pIn[2],pIn[1],pIn[1]);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromRGB( const uno::Sequence< rendering::RGBColor >& rgbColor ) override
+ {
+ const rendering::RGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< double > aRes(nLen*4);
+ double* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = pIn->Blue;
+ *pColors++ = pIn->Green;
+ *pColors++ = pIn->Red;
+ *pColors++ = 1.0;
+ ++pIn;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< double > aRes(nLen*4);
+ double* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = pIn->Alpha*pIn->Blue;
+ *pColors++ = pIn->Alpha*pIn->Green;
+ *pColors++ = pIn->Alpha*pIn->Red;
+ *pColors++ = pIn->Alpha;
+ ++pIn;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromPARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< double > aRes(nLen*4);
+ double* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = pIn->Blue;
+ *pColors++ = pIn->Green;
+ *pColors++ = pIn->Red;
+ *pColors++ = pIn->Alpha;
+ ++pIn;
+ }
+ return aRes;
+ }
+
+ // XIntegerBitmapColorSpace
+ virtual ::sal_Int32 SAL_CALL getBitsPerPixel( ) override
+ {
+ return 32;
+ }
+ virtual uno::Sequence< ::sal_Int32 > SAL_CALL getComponentBitCounts( ) override
+ {
+ return maBitCounts;
+ }
+ virtual ::sal_Int8 SAL_CALL getEndianness( ) override
+ {
+ return util::Endianness::LITTLE;
+ }
+ virtual uno::Sequence<double> SAL_CALL convertFromIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+ const uno::Reference< rendering::XColorSpace >& targetColorSpace ) override
+ {
+ if( dynamic_cast<CairoColorSpace*>(targetColorSpace.get()) )
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence<double> aRes(nLen);
+ double* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ }
+ return aRes;
+ }
+ else
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertIntegerToARGB(deviceColor));
+ return targetColorSpace->convertFromARGB(aIntermediate);
+ }
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertToIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+ const uno::Reference< rendering::XIntegerBitmapColorSpace >& targetColorSpace ) override
+ {
+ if( dynamic_cast<CairoColorSpace*>(targetColorSpace.get()) )
+ {
+ // it's us, so simply pass-through the data
+ return deviceColor;
+ }
+ else
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertIntegerToARGB(deviceColor));
+ return targetColorSpace->convertIntegerFromARGB(aIntermediate);
+ }
+ }
+ virtual uno::Sequence< rendering::RGBColor > SAL_CALL convertIntegerToRGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::RGBColor > aRes(nLen/4);
+ rendering::RGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ const double fAlpha(static_cast<sal_uInt8>(pIn[3]));
+ if( fAlpha )
+ *pOut++ = rendering::RGBColor(
+ pIn[2]/fAlpha,
+ pIn[1]/fAlpha,
+ pIn[0]/fAlpha);
+ else
+ *pOut++ = rendering::RGBColor(0,0,0);
+ pIn += 4;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertIntegerToARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ const double fAlpha(static_cast<sal_uInt8>(pIn[3]));
+ if( fAlpha )
+ *pOut++ = rendering::ARGBColor(
+ fAlpha/255.0,
+ pIn[2]/fAlpha,
+ pIn[1]/fAlpha,
+ pIn[0]/fAlpha);
+ else
+ *pOut++ = rendering::ARGBColor(0,0,0,0);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertIntegerToPARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::ARGBColor(
+ vcl::unotools::toDoubleColor(pIn[3]),
+ vcl::unotools::toDoubleColor(pIn[2]),
+ vcl::unotools::toDoubleColor(pIn[1]),
+ vcl::unotools::toDoubleColor(pIn[0]));
+ pIn += 4;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromRGB( const uno::Sequence< rendering::RGBColor >& rgbColor ) override
+ {
+ const rendering::RGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< sal_Int8 > aRes(nLen*4);
+ sal_Int8* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = vcl::unotools::toByteColor(pIn->Blue);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Green);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Red);
+ *pColors++ = -1;
+ ++pIn;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< sal_Int8 > aRes(nLen*4);
+ sal_Int8* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ const double fAlpha(pIn->Alpha);
+ *pColors++ = vcl::unotools::toByteColor(fAlpha*pIn->Blue);
+ *pColors++ = vcl::unotools::toByteColor(fAlpha*pIn->Green);
+ *pColors++ = vcl::unotools::toByteColor(fAlpha*pIn->Red);
+ *pColors++ = vcl::unotools::toByteColor(fAlpha);
+ ++pIn;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromPARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< sal_Int8 > aRes(nLen*4);
+ sal_Int8* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = vcl::unotools::toByteColor(pIn->Blue);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Green);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Red);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Alpha);
+ ++pIn;
+ }
+ return aRes;
+ }
+
+ public:
+ CairoColorSpace() :
+ maComponentTags(4),
+ maBitCounts(4)
+ {
+ sal_Int8* pTags = maComponentTags.getArray();
+ sal_Int32* pBitCounts = maBitCounts.getArray();
+ pTags[0] = rendering::ColorComponentTag::RGB_BLUE;
+ pTags[1] = rendering::ColorComponentTag::RGB_GREEN;
+ pTags[2] = rendering::ColorComponentTag::RGB_RED;
+ pTags[3] = rendering::ColorComponentTag::PREMULTIPLIED_ALPHA;
+
+ pBitCounts[0] =
+ pBitCounts[1] =
+ pBitCounts[2] =
+ pBitCounts[3] = 8;
+ }
+ };
+
+ class CairoNoAlphaColorSpace : public cppu::WeakImplHelper< css::rendering::XIntegerBitmapColorSpace >
+ {
+ private:
+ uno::Sequence< sal_Int8 > maComponentTags;
+ uno::Sequence< sal_Int32 > maBitCounts;
+
+ virtual ::sal_Int8 SAL_CALL getType( ) override
+ {
+ return rendering::ColorSpaceType::RGB;
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL getComponentTags( ) override
+ {
+ return maComponentTags;
+ }
+ virtual ::sal_Int8 SAL_CALL getRenderingIntent( ) override
+ {
+ return rendering::RenderingIntent::PERCEPTUAL;
+ }
+ virtual uno::Sequence< beans::PropertyValue > SAL_CALL getProperties( ) override
+ {
+ return uno::Sequence< beans::PropertyValue >();
+ }
+ virtual uno::Sequence< double > SAL_CALL convertColorSpace( const uno::Sequence< double >& deviceColor,
+ const uno::Reference< rendering::XColorSpace >& targetColorSpace ) override
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertToARGB(deviceColor));
+ return targetColorSpace->convertFromARGB(aIntermediate);
+ }
+ virtual uno::Sequence< rendering::RGBColor > SAL_CALL convertToRGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ const double* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::RGBColor > aRes(nLen/4);
+ rendering::RGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::RGBColor(pIn[2], pIn[1], pIn[0]);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ uno::Sequence< rendering::ARGBColor > impl_convertToARGB( const uno::Sequence< double >& deviceColor )
+ {
+ const double* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::ARGBColor(1.0, pIn[2], pIn[1], pIn[0]);
+ pIn += 4;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertToARGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ return impl_convertToARGB( deviceColor );
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertToPARGB( const uno::Sequence< double >& deviceColor ) override
+ {
+ return impl_convertToARGB( deviceColor );
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromRGB( const uno::Sequence< rendering::RGBColor >& rgbColor ) override
+ {
+ const rendering::RGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< double > aRes(nLen*4);
+ double* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = pIn->Blue;
+ *pColors++ = pIn->Green;
+ *pColors++ = pIn->Red;
+ *pColors++ = 1.0; // the value does not matter
+ ++pIn;
+ }
+ return aRes;
+ }
+ uno::Sequence< double > impl_convertFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor )
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< double > aRes(nLen*4);
+ double* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = pIn->Blue;
+ *pColors++ = pIn->Green;
+ *pColors++ = pIn->Red;
+ *pColors++ = 1.0; // the value does not matter
+ ++pIn;
+ }
+ return aRes;
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ return impl_convertFromARGB( rgbColor );
+ }
+ virtual uno::Sequence< double > SAL_CALL convertFromPARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ return impl_convertFromARGB( rgbColor );
+ }
+
+ // XIntegerBitmapColorSpace
+ virtual ::sal_Int32 SAL_CALL getBitsPerPixel( ) override
+ {
+ return 32;
+ }
+ virtual uno::Sequence< ::sal_Int32 > SAL_CALL getComponentBitCounts( ) override
+ {
+ return maBitCounts;
+ }
+ virtual ::sal_Int8 SAL_CALL getEndianness( ) override
+ {
+ return util::Endianness::LITTLE;
+ }
+ virtual uno::Sequence<double> SAL_CALL convertFromIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+ const uno::Reference< rendering::XColorSpace >& targetColorSpace ) override
+ {
+ if( dynamic_cast<CairoColorSpace*>(targetColorSpace.get()) )
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence<double> aRes(nLen);
+ double* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = vcl::unotools::toDoubleColor(*pIn++);
+ *pOut++ = 1.0; pIn++; // the value does not matter
+ }
+ return aRes;
+ }
+ else
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertIntegerToARGB(deviceColor));
+ return targetColorSpace->convertFromARGB(aIntermediate);
+ }
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertToIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+ const uno::Reference< rendering::XIntegerBitmapColorSpace >& targetColorSpace ) override
+ {
+ if( dynamic_cast<CairoNoAlphaColorSpace*>(targetColorSpace.get()) )
+ {
+ // it's us, so simply pass-through the data
+ return deviceColor;
+ }
+ else
+ {
+ // TODO(P3): if we know anything about target
+ // colorspace, this can be greatly sped up
+ uno::Sequence<rendering::ARGBColor> aIntermediate(
+ convertIntegerToARGB(deviceColor));
+ return targetColorSpace->convertIntegerFromARGB(aIntermediate);
+ }
+ }
+ virtual uno::Sequence< rendering::RGBColor > SAL_CALL convertIntegerToRGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::RGBColor > aRes(nLen/4);
+ rendering::RGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::RGBColor( pIn[2], pIn[1], pIn[0] );
+ pIn += 4;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertIntegerToARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ return impl_convertIntegerToARGB( deviceColor );
+ }
+ virtual uno::Sequence< rendering::ARGBColor > SAL_CALL convertIntegerToPARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) override
+ {
+ return impl_convertIntegerToARGB( deviceColor );
+ }
+ uno::Sequence< rendering::ARGBColor > impl_convertIntegerToARGB( const uno::Sequence< ::sal_Int8 >& deviceColor )
+ {
+ const sal_Int8* pIn( deviceColor.getConstArray() );
+ const std::size_t nLen( deviceColor.getLength() );
+ ENSURE_ARG_OR_THROW2(nLen%4==0,
+ "number of channels no multiple of 4",
+ static_cast<rendering::XColorSpace*>(this), 0);
+
+ uno::Sequence< rendering::ARGBColor > aRes(nLen/4);
+ rendering::ARGBColor* pOut( aRes.getArray() );
+ for( std::size_t i=0; i<nLen; i+=4 )
+ {
+ *pOut++ = rendering::ARGBColor(
+ 1.0,
+ vcl::unotools::toDoubleColor(pIn[2]),
+ vcl::unotools::toDoubleColor(pIn[1]),
+ vcl::unotools::toDoubleColor(pIn[0]));
+ pIn += 4;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromRGB( const uno::Sequence< rendering::RGBColor >& rgbColor ) override
+ {
+ const rendering::RGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< sal_Int8 > aRes(nLen*4);
+ sal_Int8* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = vcl::unotools::toByteColor(pIn->Blue);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Green);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Red);
+ *pColors++ = -1; // the value does not matter
+ ++pIn;
+ }
+ return aRes;
+ }
+
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ return impl_convertIntegerFromARGB( rgbColor );
+ }
+ virtual uno::Sequence< ::sal_Int8 > SAL_CALL convertIntegerFromPARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor ) override
+ {
+ return impl_convertIntegerFromARGB( rgbColor );
+ }
+ uno::Sequence< ::sal_Int8 > impl_convertIntegerFromARGB( const uno::Sequence< rendering::ARGBColor >& rgbColor )
+ {
+ const rendering::ARGBColor* pIn( rgbColor.getConstArray() );
+ const std::size_t nLen( rgbColor.getLength() );
+
+ uno::Sequence< sal_Int8 > aRes(nLen*4);
+ sal_Int8* pColors=aRes.getArray();
+ for( std::size_t i=0; i<nLen; ++i )
+ {
+ *pColors++ = vcl::unotools::toByteColor(pIn->Blue);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Green);
+ *pColors++ = vcl::unotools::toByteColor(pIn->Red);
+ *pColors++ = -1; // the value does not matter
+ ++pIn;
+ }
+ return aRes;
+ }
+
+ public:
+ CairoNoAlphaColorSpace() :
+ maComponentTags(3),
+ maBitCounts(3)
+ {
+ sal_Int8* pTags = maComponentTags.getArray();
+ sal_Int32* pBitCounts = maBitCounts.getArray();
+ pTags[0] = rendering::ColorComponentTag::RGB_BLUE;
+ pTags[1] = rendering::ColorComponentTag::RGB_GREEN;
+ pTags[2] = rendering::ColorComponentTag::RGB_RED;
+
+ pBitCounts[0] =
+ pBitCounts[1] =
+ pBitCounts[2] = 8;
+ }
+ };
+
+ uno::Reference<rendering::XIntegerBitmapColorSpace>& GetCairoNoAlphaColorSpace()
+ {
+ static uno::Reference<rendering::XIntegerBitmapColorSpace> SPACE = new CairoNoAlphaColorSpace();
+ return SPACE;
+ };
+
+ uno::Reference<rendering::XIntegerBitmapColorSpace>& GetCairoColorSpace()
+ {
+ static uno::Reference<rendering::XIntegerBitmapColorSpace> SPACE = new CairoColorSpace();
+ return SPACE;
+ };
+
+ }
+
+ rendering::IntegerBitmapLayout CanvasHelper::getMemoryLayout()
+ {
+ if( !mpCairo )
+ return rendering::IntegerBitmapLayout(); // we're disposed
+
+ const geometry::IntegerSize2D aSize(getSize());
+
+ return impl_getMemoryLayout( aSize.Width, aSize.Height );
+ }
+
+ rendering::IntegerBitmapLayout
+ CanvasHelper::impl_getMemoryLayout( const sal_Int32 nWidth, const sal_Int32 nHeight )
+ {
+ rendering::IntegerBitmapLayout aLayout;
+
+ aLayout.ScanLines = nHeight;
+ aLayout.ScanLineBytes = nWidth*4;
+ aLayout.ScanLineStride = aLayout.ScanLineBytes;
+ aLayout.PlaneStride = 0;
+ aLayout.ColorSpace = mbHaveAlpha ? GetCairoColorSpace() : GetCairoNoAlphaColorSpace();
+ aLayout.Palette.clear();
+ aLayout.IsMsbFirst = false;
+
+ return aLayout;
+ }
+
+
+ bool CanvasHelper::repaint( const SurfaceSharedPtr& pSurface,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ SAL_INFO( "canvas.cairo", "CanvasHelper::repaint");
+
+ if( !mpCairo )
+ return true;
+
+ cairo_save( mpCairo.get() );
+
+ cairo_rectangle( mpCairo.get(), 0, 0, maSize.getX(), maSize.getY() );
+ cairo_clip( mpCairo.get() );
+
+ useStates( viewState, renderState, true );
+
+ cairo_matrix_t aMatrix;
+
+ cairo_get_matrix( mpCairo.get(), &aMatrix );
+ aMatrix.xx = aMatrix.yy = 1;
+ cairo_set_matrix( mpCairo.get(), &aMatrix );
+
+ cairo_set_source_surface( mpCairo.get(), pSurface->getCairoSurface().get(), 0, 0 );
+ cairo_paint( mpCairo.get() );
+ cairo_restore( mpCairo.get() );
+
+ return true;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 02:03:24 +0000