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Diffstat (limited to 'canvas/source/directx/dx_spritehelper.cxx')
| -rw-r--r-- | canvas/source/directx/dx_spritehelper.cxx | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/canvas/source/directx/dx_spritehelper.cxx b/canvas/source/directx/dx_spritehelper.cxx new file mode 100644 index 000000000..af4f340a5 --- /dev/null +++ b/canvas/source/directx/dx_spritehelper.cxx @@ -0,0 +1,199 @@ +/* -*- 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 <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/numeric/ftools.hxx> +#include <basegfx/point/b2dpoint.hxx> +#include <basegfx/polygon/b2dpolygoncutandtouch.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolygontriangulator.hxx> +#include <basegfx/polygon/b2dpolypolygontools.hxx> +#include <basegfx/utils/canvastools.hxx> +#include <rtl/math.hxx> +#include <tools/diagnose_ex.h> + +#include <canvas/canvastools.hxx> + +#include "dx_canvascustomsprite.hxx" +#include "dx_impltools.hxx" +#include "dx_spritehelper.hxx" + +using namespace ::com::sun::star; + +namespace dxcanvas +{ + SpriteHelper::SpriteHelper() : + mpSpriteCanvas(), + mpBitmap(), + mbTextureDirty( true ), + mbShowSpriteBounds( false ) + { + } + + void SpriteHelper::init( const geometry::RealSize2D& rSpriteSize, + const SpriteCanvasRef& rSpriteCanvas, + const IDXRenderModuleSharedPtr& rRenderModule, + const DXSurfaceBitmapSharedPtr& rBitmap, + bool bShowSpriteBounds ) + { + ENSURE_OR_THROW( rSpriteCanvas.get() && + rRenderModule && + rBitmap, + "SpriteHelper::init(): Invalid device, sprite canvas or surface" ); + + mpSpriteCanvas = rSpriteCanvas; + mpBitmap = rBitmap; + mbTextureDirty = true; + mbShowSpriteBounds = bShowSpriteBounds; + + // also init base class + CanvasCustomSpriteHelper::init( rSpriteSize, + rSpriteCanvas.get() ); + } + + void SpriteHelper::disposing() + { + mpBitmap.reset(); + mpSpriteCanvas.clear(); + + // forward to parent + CanvasCustomSpriteHelper::disposing(); + } + + ::basegfx::B2DPolyPolygon SpriteHelper::polyPolygonFromXPolyPolygon2D( uno::Reference< rendering::XPolyPolygon2D >& xPoly ) const + { + return tools::polyPolygonFromXPolyPolygon2D( xPoly ); + } + + bool SpriteHelper::needRedraw() const + { + if( !mpBitmap || + !mpSpriteCanvas.get() ) + { + return false; // we're disposed, no redraw necessary + } + + if( !isActive() || + ::basegfx::fTools::equalZero( getAlpha() ) ) + { + return false; // sprite is invisible + } + + return true; + } + + void SpriteHelper::redraw( bool& io_bSurfaceDirty ) const + { + if( !mpBitmap || + !mpSpriteCanvas.get() ) + { + return; // we're disposed + } + + const ::basegfx::B2DPoint& rPos( getPosPixel() ); + const double fAlpha( getAlpha() ); + + if( isActive() && + !::basegfx::fTools::equalZero( fAlpha ) ) + { + + // TODO(Q2): For the time being, Device does not take a target + // surface, but always unconditionally renders to the + // background buffer. + + // log output pos in device pixel + SAL_INFO("canvas.directx", "SpriteHelper::redraw(): output pos is (" << + rPos.getX() << "," << rPos.getY() << ")" ); + + const ::basegfx::B2DVector& rSize( getSizePixel() ); + const ::basegfx::B2DHomMatrix& rTransform( getTransformation() ); + const uno::Reference< rendering::XPolyPolygon2D >& xClip( getClip() ); + + mbTextureDirty = false; + io_bSurfaceDirty = false; // state taken, and processed. + + ::basegfx::B2DPolyPolygon aClipPath; // empty for no clip + bool bIsClipRectangular( false ); // false, if no + // clip, or clip + // is complex + + // setup and apply clip (if any) + // ================================= + + if( xClip.is() ) + { + aClipPath = tools::polyPolygonFromXPolyPolygon2D( xClip ); + + const sal_Int32 nNumClipPolygons( aClipPath.count() ); + if( nNumClipPolygons ) + { + // TODO(P2): hold rectangle attribute directly + // at the XPolyPolygon2D + + // check whether the clip is rectangular + if( nNumClipPolygons == 1 ) + if( ::basegfx::utils::isRectangle( aClipPath.getB2DPolygon( 0 ) ) ) + bIsClipRectangular = true; + } + } + + const ::basegfx::B2DRectangle aSourceRect( 0.0, + 0.0, + rSize.getX(), + rSize.getY() ); + + // draw simple rectangular area if no clip is set. + if( !aClipPath.count() ) + { + mpBitmap->draw(fAlpha,rPos,rTransform); + } + else if( bIsClipRectangular ) + { + // apply a simple rect clip + // ======================== + + ::basegfx::B2DRectangle aClipBounds( + ::basegfx::utils::getRange( aClipPath ) ); + aClipBounds.intersect( aSourceRect ); + + mpBitmap->draw(fAlpha,rPos,aClipBounds,rTransform); + } + else + { + // apply clip the hard way + // ======================= + + mpBitmap->draw(fAlpha,rPos,aClipPath,rTransform); + } + + if( mbShowSpriteBounds ) + { + if( aClipPath.count() ) + { + // TODO(F2): Re-enable debug output + } + } + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |