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diff --git a/canvas/source/opengl/ogl_canvashelper.cxx b/canvas/source/opengl/ogl_canvashelper.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/.
+ */
+
+#include <sal/config.h>
+
+#include <memory>
+#include <functional>
+#include <epoxy/gl.h>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <com/sun/star/rendering/CompositeOperation.hpp>
+#include <rtl/crc.h>
+#include <rtl/math.hxx>
+#include <comphelper/diagnose_ex.hxx>
+#include <vcl/font.hxx>
+#include <vcl/kernarray.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/virdev.hxx>
+
+#include "ogl_canvasbitmap.hxx"
+#include "ogl_canvasfont.hxx"
+#include "ogl_canvastools.hxx"
+#include "ogl_texturecache.hxx"
+#include "ogl_tools.hxx"
+
+#include "ogl_canvashelper.hxx"
+
+using namespace ::com::sun::star;
+using namespace std::placeholders;
+
+namespace oglcanvas
+{
+ /* Concepts:
+ =========
+
+ This OpenGL canvas implementation tries to keep all render
+ output as high-level as possible, i.e. geometry data and
+ externally-provided bitmaps. Therefore, calls at the
+ XCanvas-interfaces are not immediately transformed into colored
+ pixel inside some GL buffer, but are retained simply with their
+ call parameters. Only after XSpriteCanvas::updateScreen() has
+ been called, this all gets transferred to the OpenGL subsystem
+ and converted to a visible scene. The big advantage is, this
+ makes sprite modifications practically zero-overhead, and saves
+ a lot on texture memory (compared to the directx canvas, which
+ immediately dumps every render call into a texture).
+
+ The drawback, of course, is that complex images churn a lot of
+ GPU cycles on every re-rendering.
+
+ For the while, I'll be using immediate mode, i.e. transfer data
+ over and over again to the OpenGL subsystem. Alternatively,
+ there are display lists, which at least keep the data on the
+ server, or even better, vertex buffers, which copy geometry
+ data over en bloc.
+
+ Next todo: put polygon geometry into vertex buffer (LRU cache
+ necessary?) - or, rather, buffer objects! prune entries older
+ than one updateScreen() call)
+
+ Text: http://www.opengl.org/resources/features/fontsurvey/
+ */
+
+ struct CanvasHelper::Action
+ {
+ ::basegfx::B2DHomMatrix maTransform;
+ GLenum meSrcBlendMode;
+ GLenum meDstBlendMode;
+ rendering::ARGBColor maARGBColor;
+ ::basegfx::B2DPolyPolygonVector maPolyPolys;
+
+ std::function< bool (
+ const CanvasHelper&,
+ const ::basegfx::B2DHomMatrix&,
+ GLenum,
+ GLenum,
+ const rendering::ARGBColor&,
+ const ::basegfx::B2DPolyPolygonVector&)> maFunction;
+ };
+
+ namespace
+ {
+ bool lcl_drawLine( const CanvasHelper& /*rHelper*/,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::ARGBColor& rColor,
+ const geometry::RealPoint2D& rStartPoint,
+ const geometry::RealPoint2D& rEndPoint )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rColor);
+
+ glBegin(GL_LINES);
+ glVertex2d(rStartPoint.X, rStartPoint.Y);
+ glVertex2d(rEndPoint.X, rEndPoint.Y);
+ glEnd();
+
+ return true;
+ }
+
+ bool lcl_drawPolyPolygon( const CanvasHelper& /*rHelper*/,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::ARGBColor& rColor,
+ const ::basegfx::B2DPolyPolygonVector& rPolyPolygons )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rColor);
+
+ for( const auto& rPoly : rPolyPolygons )
+ renderPolyPolygon( rPoly );
+
+ return true;
+ }
+
+ bool lcl_fillPolyPolygon( const CanvasHelper& /*rHelper*/,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::ARGBColor& rColor,
+ const ::basegfx::B2DPolyPolygonVector& rPolyPolygons )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rColor);
+
+ for( const auto& rPoly : rPolyPolygons )
+ {
+ glBegin( GL_TRIANGLES );
+ renderComplexPolyPolygon( rPoly );
+ glEnd();
+ }
+
+ return true;
+ }
+
+ bool lcl_fillGradientPolyPolygon( const CanvasHelper& rHelper,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const ::canvas::ParametricPolyPolygon::Values& rValues,
+ const rendering::Texture& rTexture,
+ const ::basegfx::B2DPolyPolygonVector& rPolyPolygons )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rendering::ARGBColor());
+
+ // convert to weird canvas textur coordinate system (not
+ // [0,1]^2, but path coordinate system)
+ ::basegfx::B2DHomMatrix aTextureTransform;
+ ::basegfx::unotools::homMatrixFromAffineMatrix( aTextureTransform,
+ rTexture.AffineTransform );
+ ::basegfx::B2DRange aBounds;
+ for( const auto& rPoly : rPolyPolygons )
+ aBounds.expand( ::basegfx::utils::getRange( rPoly ) );
+ aTextureTransform.translate(-aBounds.getMinX(), -aBounds.getMinY());
+ aTextureTransform.scale(1/aBounds.getWidth(), 1/aBounds.getHeight());
+
+ const sal_Int32 nNumCols=rValues.maColors.getLength();
+ uno::Sequence< rendering::ARGBColor > aColors(nNumCols);
+ rendering::ARGBColor* const pColors=aColors.getArray();
+ rendering::ARGBColor* pCurrCol=pColors;
+ for( sal_Int32 i=0; i<nNumCols; ++i )
+ *pCurrCol++ = rHelper.getDevice()->getDeviceColorSpace()->convertToARGB(rValues.maColors[i])[0];
+
+ OSL_ASSERT(nNumCols == rValues.maStops.getLength());
+
+ switch( rValues.meType )
+ {
+ case ::canvas::ParametricPolyPolygon::GradientType::Linear:
+ rHelper.getDeviceHelper()->useLinearGradientShader(pColors,
+ rValues.maStops,
+ aTextureTransform);
+ break;
+
+ case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
+ rHelper.getDeviceHelper()->useRadialGradientShader(pColors,
+ rValues.maStops,
+ aTextureTransform);
+ break;
+
+ case ::canvas::ParametricPolyPolygon::GradientType::Rectangular:
+ rHelper.getDeviceHelper()->useRectangularGradientShader(pColors,
+ rValues.maStops,
+ aTextureTransform);
+ break;
+
+ default:
+ ENSURE_OR_THROW( false,
+ "CanvasHelper lcl_fillGradientPolyPolygon(): Unexpected case" );
+ }
+
+
+ for( const auto& rPoly : rPolyPolygons )
+ {
+ glBegin(GL_TRIANGLES);
+ renderComplexPolyPolygon( rPoly );
+ glEnd();
+ }
+
+ glUseProgram(0);
+ glLoadIdentity();
+ glMatrixMode(GL_MODELVIEW);
+
+ return true;
+ }
+
+ bool lcl_drawOwnBitmap( const CanvasHelper& /*rHelper*/,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::ARGBColor& rColor,
+ const CanvasBitmap& rBitmap )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rColor);
+
+ return rBitmap.renderRecordedActions();
+ }
+
+ bool lcl_drawGenericBitmap( const CanvasHelper& rHelper,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::ARGBColor& rColor,
+ const geometry::IntegerSize2D& rPixelSize,
+ const uno::Sequence<sal_Int8>& rPixelData,
+ sal_uInt32 nPixelCrc32 )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rColor);
+
+ const unsigned int nTexId=rHelper.getDeviceHelper()->getTextureCache().getTexture(
+ rPixelSize, rPixelData.getConstArray(), nPixelCrc32);
+
+ glBindTexture(GL_TEXTURE_2D, nTexId);
+ glEnable(GL_TEXTURE_2D);
+ glTexParameteri(GL_TEXTURE_2D,
+ GL_TEXTURE_MIN_FILTER,
+ GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D,
+ GL_TEXTURE_MAG_FILTER,
+ GL_NEAREST);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA,
+ GL_ONE_MINUS_SRC_ALPHA);
+
+ // blend against fixed vertex color; texture alpha is multiplied in
+ glColor4f(1,1,1,1);
+
+ glBegin(GL_TRIANGLE_STRIP);
+ glTexCoord2f(0,0); glVertex2d(0,0);
+ glTexCoord2f(0,1); glVertex2d(0, rPixelSize.Height);
+ glTexCoord2f(1,0); glVertex2d(rPixelSize.Width,0);
+ glTexCoord2f(1,1); glVertex2d(rPixelSize.Width,rPixelSize.Height);
+ glEnd();
+
+ glBindTexture(GL_TEXTURE_2D, 0);
+ glDisable(GL_TEXTURE_2D);
+
+ return true;
+ }
+
+ bool lcl_fillTexturedPolyPolygon( const CanvasHelper& rHelper,
+ const ::basegfx::B2DHomMatrix& rTransform,
+ GLenum eSrcBlend,
+ GLenum eDstBlend,
+ const rendering::Texture& rTexture,
+ const geometry::IntegerSize2D& rPixelSize,
+ const uno::Sequence<sal_Int8>& rPixelData,
+ sal_uInt32 nPixelCrc32,
+ const ::basegfx::B2DPolyPolygonVector& rPolyPolygons )
+ {
+ TransformationPreserver aPreserver;
+ setupState(rTransform, eSrcBlend, eDstBlend, rendering::ARGBColor());
+
+ const unsigned int nTexId=rHelper.getDeviceHelper()->getTextureCache().getTexture(
+ rPixelSize, rPixelData.getConstArray(), nPixelCrc32);
+
+ glBindTexture(GL_TEXTURE_2D, nTexId);
+ glEnable(GL_TEXTURE_2D);
+ glTexParameteri(GL_TEXTURE_2D,
+ GL_TEXTURE_MIN_FILTER,
+ GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D,
+ GL_TEXTURE_MAG_FILTER,
+ GL_NEAREST);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA,
+ GL_ONE_MINUS_SRC_ALPHA);
+
+ // convert to weird canvas textur coordinate system (not
+ // [0,1]^2, but path coordinate system)
+ ::basegfx::B2DHomMatrix aTextureTransform;
+ ::basegfx::unotools::homMatrixFromAffineMatrix( aTextureTransform,
+ rTexture.AffineTransform );
+ ::basegfx::B2DRange aBounds;
+ for( const auto& rPolyPolygon : rPolyPolygons )
+ aBounds.expand( ::basegfx::utils::getRange( rPolyPolygon ) );
+ aTextureTransform.translate(-aBounds.getMinX(), -aBounds.getMinY());
+ aTextureTransform.scale(1/aBounds.getWidth(), 1/aBounds.getHeight());
+ aTextureTransform.invert();
+
+ glMatrixMode(GL_TEXTURE);
+ double aTexTransform[] =
+ {
+ aTextureTransform.get(0,0), aTextureTransform.get(1,0), 0, 0,
+ aTextureTransform.get(0,1), aTextureTransform.get(1,1), 0, 0,
+ 0, 0, 1, 0,
+ aTextureTransform.get(0,2), aTextureTransform.get(1,2), 0, 1
+ };
+ glLoadMatrixd(aTexTransform);
+
+ // blend against fixed vertex color; texture alpha is multiplied in
+ glColor4f(1,1,1,rTexture.Alpha);
+
+ for( const auto& rPolyPolygon : rPolyPolygons )
+ {
+ glBegin(GL_TRIANGLES);
+ renderComplexPolyPolygon( rPolyPolygon );
+ glEnd();
+ }
+
+ glLoadIdentity();
+ glMatrixMode(GL_MODELVIEW);
+
+ glBindTexture(GL_TEXTURE_2D, 0);
+ glDisable(GL_TEXTURE_2D);
+
+ return true;
+ }
+ }
+
+ CanvasHelper::CanvasHelper() :
+ mpDevice( nullptr ),
+ mpDeviceHelper( nullptr )
+ {}
+
+ CanvasHelper::~CanvasHelper()
+ {}
+
+ CanvasHelper& CanvasHelper::operator=( const CanvasHelper& rSrc )
+ {
+ mpDevice = rSrc.mpDevice;
+ mpDeviceHelper = rSrc.mpDeviceHelper;
+ mpRecordedActions = rSrc.mpRecordedActions;
+ return *this;
+ }
+
+ void CanvasHelper::disposing()
+ {
+ RecordVectorT aThrowaway;
+ mpRecordedActions.swap( aThrowaway );
+ mpDevice = nullptr;
+ mpDeviceHelper = nullptr;
+ }
+
+ void CanvasHelper::init( rendering::XGraphicDevice& rDevice,
+ SpriteDeviceHelper& rDeviceHelper )
+ {
+ mpDevice = &rDevice;
+ mpDeviceHelper = &rDeviceHelper;
+ }
+
+ void CanvasHelper::clear()
+ {
+ mpRecordedActions->clear();
+ }
+
+ void CanvasHelper::drawLine( const rendering::XCanvas* /*pCanvas*/,
+ const geometry::RealPoint2D& aStartPoint,
+ const geometry::RealPoint2D& aEndPoint,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ if( mpDevice )
+ {
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maFunction = std::bind(&lcl_drawLine,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5,
+ aStartPoint, aEndPoint);
+ }
+ }
+
+ void CanvasHelper::drawBezier( const rendering::XCanvas* /*pCanvas*/,
+ const geometry::RealBezierSegment2D& aBezierSegment,
+ const geometry::RealPoint2D& aEndPoint,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ if( !mpDevice )
+ return;
+
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+
+ // TODO(F2): subdivide&render whole curve
+ rAct.maFunction = std::bind(&lcl_drawLine,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5,
+ geometry::RealPoint2D(
+ aBezierSegment.Px,
+ aBezierSegment.Py),
+ aEndPoint);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawPolyPolygon( const rendering::XCanvas* /*pCanvas*/,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ENSURE_OR_THROW( xPolyPolygon.is(),
+ "CanvasHelper::drawPolyPolygon: polygon is NULL");
+
+ if( mpDevice )
+ {
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maPolyPolys.push_back(
+ ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
+ rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+
+ rAct.maFunction = &lcl_drawPolyPolygon;
+ }
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokePolyPolygon( const rendering::XCanvas* /*pCanvas*/,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const rendering::StrokeAttributes& /*strokeAttributes*/ )
+ {
+ ENSURE_OR_THROW( xPolyPolygon.is(),
+ "CanvasHelper::strokePolyPolygon: polygon is NULL");
+
+ if( mpDevice )
+ {
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maPolyPolys.push_back(
+ ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
+ rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+
+ // TODO(F3): fallback to drawPolyPolygon currently
+ rAct.maFunction = &lcl_drawPolyPolygon;
+ }
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTexturedPolyPolygon( const rendering::XCanvas* /*pCanvas*/,
+ 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* /*pCanvas*/,
+ 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* /*pCanvas*/,
+ 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* /*pCanvas*/,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ENSURE_OR_THROW( xPolyPolygon.is(),
+ "CanvasHelper::fillPolyPolygon: polygon is NULL");
+
+ if( mpDevice )
+ {
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maPolyPolys.push_back(
+ ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
+ rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+
+ rAct.maFunction = &lcl_fillPolyPolygon;
+ }
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTexturedPolyPolygon( const rendering::XCanvas* /*pCanvas*/,
+ const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState,
+ const uno::Sequence< rendering::Texture >& textures )
+ {
+ ENSURE_OR_THROW( xPolyPolygon.is(),
+ "CanvasHelper::fillPolyPolygon: polygon is NULL");
+
+ if( mpDevice )
+ {
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maPolyPolys.push_back(
+ ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
+ rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+
+ // TODO(F1): Multi-texturing
+ if( textures[0].Gradient.is() )
+ {
+ // try to cast XParametricPolyPolygon2D reference to
+ // our implementation class.
+ ::canvas::ParametricPolyPolygon* pGradient =
+ dynamic_cast< ::canvas::ParametricPolyPolygon* >( textures[0].Gradient.get() );
+
+ if( pGradient )
+ {
+ // copy state from Gradient polypoly locally
+ // (given object might change!)
+ const ::canvas::ParametricPolyPolygon::Values& rValues(
+ pGradient->getValues() );
+
+ rAct.maFunction = std::bind(&lcl_fillGradientPolyPolygon,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4,
+ rValues,
+ textures[0],
+ std::placeholders::_6);
+ }
+ else
+ {
+ // TODO(F1): The generic case is missing here
+ ENSURE_OR_THROW( false,
+ "CanvasHelper::fillTexturedPolyPolygon(): unknown parametric polygon encountered" );
+ }
+ }
+ else if( textures[0].Bitmap.is() )
+ {
+ // own bitmap?
+ CanvasBitmap* pOwnBitmap=dynamic_cast<CanvasBitmap*>(textures[0].Bitmap.get());
+ if( pOwnBitmap )
+ {
+ // TODO(F2): own texture bitmap
+ }
+ else
+ {
+ // TODO(P3): Highly inefficient - simply copies pixel data
+
+ uno::Reference< rendering::XIntegerReadOnlyBitmap > xIntegerBitmap(
+ textures[0].Bitmap,
+ uno::UNO_QUERY);
+ if( xIntegerBitmap.is() )
+ {
+ const geometry::IntegerSize2D aSize=xIntegerBitmap->getSize();
+ rendering::IntegerBitmapLayout aLayout;
+ uno::Sequence<sal_Int8> aPixelData=
+ xIntegerBitmap->getData(
+ aLayout,
+ geometry::IntegerRectangle2D(0,0,aSize.Width,aSize.Height));
+
+ // force-convert color to ARGB8888 int color space
+ uno::Sequence<sal_Int8> aARGBBytes(
+ aLayout.ColorSpace->convertToIntegerColorSpace(
+ aPixelData,
+ canvas::tools::getStdColorSpace()));
+
+ rAct.maFunction = std::bind(&lcl_fillTexturedPolyPolygon,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4,
+ textures[0],
+ aSize,
+ aARGBBytes,
+ rtl_crc32(0,
+ aARGBBytes.getConstArray(),
+ aARGBBytes.getLength()),
+ std::placeholders::_6);
+ }
+ // TODO(F1): handle non-integer case
+ }
+ }
+ }
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTextureMappedPolyPolygon( const rendering::XCanvas* /*pCanvas*/,
+ 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::XCanvasFont > CanvasHelper::createFont( const rendering::XCanvas* /*pCanvas*/,
+ const rendering::FontRequest& fontRequest,
+ const uno::Sequence< beans::PropertyValue >& extraFontProperties,
+ const geometry::Matrix2D& fontMatrix )
+ {
+ if( mpDevice )
+ return uno::Reference< rendering::XCanvasFont >(
+ new CanvasFont(fontRequest, extraFontProperties, fontMatrix ) );
+
+ return uno::Reference< rendering::XCanvasFont >();
+ }
+
+ uno::Sequence< rendering::FontInfo > CanvasHelper::queryAvailableFonts( const rendering::XCanvas* /*pCanvas*/,
+ const rendering::FontInfo& /*aFilter*/,
+ const uno::Sequence< beans::PropertyValue >& /*aFontProperties*/ )
+ {
+ // TODO
+ return uno::Sequence< rendering::FontInfo >();
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawText( const rendering::XCanvas* /*pCanvas*/,
+ const rendering::StringContext& /*text*/,
+ const uno::Reference< rendering::XCanvasFont >& /*xFont*/,
+ const rendering::ViewState& /*viewState*/,
+ const rendering::RenderState& /*renderState*/,
+ sal_Int8 /*textDirection*/ )
+ {
+ // TODO - but not used from slideshow
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawTextLayout( const rendering::XCanvas* /*pCanvas*/,
+ const uno::Reference< rendering::XTextLayout >& xLayoutetText,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ENSURE_OR_THROW( xLayoutetText.is(),
+ "CanvasHelper::drawTextLayout: text is NULL");
+
+ if( mpDevice )
+ {
+ ScopedVclPtrInstance< VirtualDevice > pVDev;
+ pVDev->EnableOutput(false);
+
+ auto pLayoutFont = xLayoutetText->getFont();
+ CanvasFont* pFont=dynamic_cast<CanvasFont*>(pLayoutFont.get());
+ const rendering::StringContext& rTxt=xLayoutetText->getText();
+ if( pFont && rTxt.Length )
+ {
+ // create the font
+ const rendering::FontRequest& rFontRequest = pFont->getFontRequest();
+ const geometry::Matrix2D& rFontMatrix = pFont->getFontMatrix();
+ vcl::Font aFont(
+ rFontRequest.FontDescription.FamilyName,
+ rFontRequest.FontDescription.StyleName,
+ Size( 0, ::basegfx::fround(rFontRequest.CellSize)));
+
+ aFont.SetAlignment( ALIGN_BASELINE );
+ aFont.SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
+ aFont.SetVertical( rFontRequest.FontDescription.IsVertical==util::TriState_YES );
+ aFont.SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
+ aFont.SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
+
+ if (pFont->getEmphasisMark())
+ aFont.SetEmphasisMark(FontEmphasisMark(pFont->getEmphasisMark()));
+
+ // adjust to stretched font
+ if(!::rtl::math::approxEqual(rFontMatrix.m00, rFontMatrix.m11))
+ {
+ const Size aSize = pVDev->GetFontMetric( aFont ).GetFontSize();
+ const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
+ double fStretch = rFontMatrix.m00 + rFontMatrix.m01;
+
+ if( !::basegfx::fTools::equalZero( fDividend) )
+ fStretch /= fDividend;
+
+ const sal_Int32 nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
+
+ aFont.SetAverageFontWidth( nNewWidth );
+ }
+
+ // set font
+ pVDev->SetFont(aFont);
+
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+
+ // handle custom spacing, if there
+ uno::Sequence<double> aLogicalAdvancements=xLayoutetText->queryLogicalAdvancements();
+ if( aLogicalAdvancements.hasElements() )
+ {
+ // create the DXArray
+ const sal_Int32 nLen( aLogicalAdvancements.getLength() );
+ KernArray aDXArray;
+ aDXArray.resize(nLen);
+ for( sal_Int32 i=0; i<nLen; ++i )
+ aDXArray.set(i, basegfx::fround(aLogicalAdvancements[i]));
+
+ uno::Sequence<sal_Bool> aKashidaPositions=xLayoutetText->queryKashidaPositions();
+ std::span<const sal_Bool> aKashidaArray(aKashidaPositions.getConstArray(), aKashidaPositions.getLength());
+
+ // get the glyphs
+ pVDev->GetTextOutlines(rAct.maPolyPolys,
+ rTxt.Text,
+ 0,
+ rTxt.StartPosition,
+ rTxt.Length,
+ 0,
+ aDXArray,
+ aKashidaArray);
+ }
+ else
+ {
+ // get the glyphs
+ pVDev->GetTextOutlines(rAct.maPolyPolys,
+ rTxt.Text,
+ 0,
+ rTxt.StartPosition,
+ rTxt.Length );
+ }
+
+ // own copy, for thread safety
+ for( auto& rPoly : rAct.maPolyPolys )
+ rPoly.makeUnique();
+
+ rAct.maFunction = &lcl_fillPolyPolygon;
+ }
+ }
+
+ // TODO
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmap( const rendering::XCanvas* /*pCanvas*/,
+ const uno::Reference< rendering::XBitmap >& xBitmap,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ENSURE_OR_THROW( xBitmap.is(),
+ "CanvasHelper::drawBitmap: bitmap is NULL");
+
+ if( mpDevice )
+ {
+ // own bitmap?
+ CanvasBitmap* pOwnBitmap=dynamic_cast<CanvasBitmap*>(xBitmap.get());
+ if( pOwnBitmap )
+ {
+ // insert as transformed copy of bitmap action vector -
+ // during rendering, this gets rendered into a temporary
+ // buffer, and then composited to the front
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maFunction = std::bind(&lcl_drawOwnBitmap,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5,
+ *pOwnBitmap);
+ }
+ else
+ {
+ // TODO(P3): Highly inefficient - simply copies pixel data
+
+ uno::Reference< rendering::XIntegerReadOnlyBitmap > xIntegerBitmap(
+ xBitmap, uno::UNO_QUERY);
+ if( xIntegerBitmap.is() )
+ {
+ const geometry::IntegerSize2D aSize=xBitmap->getSize();
+ rendering::IntegerBitmapLayout aLayout;
+ uno::Sequence<sal_Int8> aPixelData=
+ xIntegerBitmap->getData(
+ aLayout,
+ geometry::IntegerRectangle2D(0,0,aSize.Width,aSize.Height));
+
+ // force-convert color to ARGB8888 int color space
+ uno::Sequence<sal_Int8> aARGBBytes(
+ aLayout.ColorSpace->convertToIntegerColorSpace(
+ aPixelData,
+ canvas::tools::getStdColorSpace()));
+
+ mpRecordedActions->push_back( Action() );
+ Action& rAct=mpRecordedActions->back();
+
+ setupGraphicsState( rAct, viewState, renderState );
+ rAct.maFunction = std::bind(&lcl_drawGenericBitmap,
+ std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5,
+ aSize, aARGBBytes,
+ rtl_crc32(0,
+ aARGBBytes.getConstArray(),
+ aARGBBytes.getLength()));
+ }
+ // TODO(F1): handle non-integer case
+ }
+ }
+
+ // TODO(P1): Provide caching here.
+ return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+ }
+
+ uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmapModulated( const rendering::XCanvas* pCanvas,
+ const uno::Reference< rendering::XBitmap >& xBitmap,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ // TODO(F3): remove this wart altogether
+ return drawBitmap(pCanvas, xBitmap, viewState, renderState);
+ }
+
+
+ void CanvasHelper::setupGraphicsState( Action& o_action,
+ const rendering::ViewState& viewState,
+ const rendering::RenderState& renderState )
+ {
+ ENSURE_OR_THROW( mpDevice,
+ "CanvasHelper::setupGraphicsState: reference device invalid" );
+
+ // TODO(F3): clipping
+ // TODO(P2): think about caching transformations between canvas calls
+
+ // setup overall transform only now. View clip above was
+ // relative to view transform
+ ::canvas::tools::mergeViewAndRenderTransform(o_action.maTransform,
+ viewState,
+ renderState);
+ // setup compositing - mapping courtesy David Reveman
+ // (glitz_operator.c)
+ switch( renderState.CompositeOperation )
+ {
+ case rendering::CompositeOperation::OVER:
+ o_action.meSrcBlendMode=GL_ONE;
+ o_action.meDstBlendMode=GL_ONE_MINUS_SRC_ALPHA;
+ break;
+ case rendering::CompositeOperation::CLEAR:
+ o_action.meSrcBlendMode=GL_ZERO;
+ o_action.meDstBlendMode=GL_ZERO;
+ break;
+ case rendering::CompositeOperation::SOURCE:
+ o_action.meSrcBlendMode=GL_ONE;
+ o_action.meDstBlendMode=GL_ZERO;
+ break;
+ case rendering::CompositeOperation::UNDER:
+ case rendering::CompositeOperation::DESTINATION:
+ o_action.meSrcBlendMode=GL_ZERO;
+ o_action.meDstBlendMode=GL_ONE;
+ break;
+ case rendering::CompositeOperation::INSIDE:
+ o_action.meSrcBlendMode=GL_DST_ALPHA;
+ o_action.meDstBlendMode=GL_ZERO;
+ break;
+ case rendering::CompositeOperation::INSIDE_REVERSE:
+ o_action.meSrcBlendMode=GL_ONE_MINUS_DST_ALPHA;
+ o_action.meDstBlendMode=GL_ZERO;
+ break;
+ case rendering::CompositeOperation::OUTSIDE:
+ o_action.meSrcBlendMode=GL_ONE_MINUS_DST_ALPHA;
+ o_action.meDstBlendMode=GL_ONE;
+ break;
+ case rendering::CompositeOperation::OUTSIDE_REVERSE:
+ o_action.meSrcBlendMode=GL_ZERO;
+ o_action.meDstBlendMode=GL_ONE_MINUS_SRC_ALPHA;
+ break;
+ case rendering::CompositeOperation::ATOP:
+ o_action.meSrcBlendMode=GL_DST_ALPHA;
+ o_action.meDstBlendMode=GL_ONE_MINUS_SRC_ALPHA;
+ break;
+ case rendering::CompositeOperation::ATOP_REVERSE:
+ o_action.meSrcBlendMode=GL_ONE_MINUS_DST_ALPHA;
+ o_action.meDstBlendMode=GL_SRC_ALPHA;
+ break;
+ case rendering::CompositeOperation::XOR:
+ o_action.meSrcBlendMode=GL_ONE_MINUS_DST_ALPHA;
+ o_action.meDstBlendMode=GL_ONE_MINUS_SRC_ALPHA;
+ break;
+ case rendering::CompositeOperation::ADD:
+ o_action.meSrcBlendMode=GL_ONE;
+ o_action.meDstBlendMode=GL_ONE;
+ break;
+ case rendering::CompositeOperation::SATURATE:
+ o_action.meSrcBlendMode=GL_SRC_ALPHA_SATURATE;
+ o_action.meDstBlendMode=GL_SRC_ALPHA_SATURATE;
+ break;
+
+ default:
+ ENSURE_OR_THROW( false, "CanvasHelper::setupGraphicsState: unexpected mode" );
+ break;
+ }
+
+ if (renderState.DeviceColor.hasElements())
+ o_action.maARGBColor =
+ mpDevice->getDeviceColorSpace()->convertToARGB(renderState.DeviceColor)[0];
+ }
+
+ bool CanvasHelper::renderRecordedActions() const
+ {
+ for( const auto& rRecordedAction : *mpRecordedActions )
+ {
+ if( !rRecordedAction.maFunction( *this,
+ rRecordedAction.maTransform,
+ rRecordedAction.meSrcBlendMode,
+ rRecordedAction.meDstBlendMode,
+ rRecordedAction.maARGBColor,
+ rRecordedAction.maPolyPolys ) )
+ return false;
+ }
+
+ return true;
+ }
+
+ size_t CanvasHelper::getRecordedActionCount() const
+ {
+ return mpRecordedActions->size();
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 10:33:25 +0000