352 lines
14 KiB
C++
352 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <boost/cast.hpp>
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#include <basegfx/range/b2drectangle.hxx>
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#include <basegfx/utils/canvastools.hxx>
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#include <comphelper/scopeguard.hxx>
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#include <comphelper/diagnose_ex.hxx>
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#include <canvas/canvastools.hxx>
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#include "dx_canvascustomsprite.hxx"
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#include "dx_spritecanvashelper.hxx"
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using namespace ::com::sun::star;
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namespace dxcanvas
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{
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namespace
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{
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void repaintBackground( const ::basegfx::B2DRange& rUpdateArea,
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const ::basegfx::B2IRange& rOutputArea,
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const DXSurfaceBitmapSharedPtr& rBackBuffer )
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{
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// TODO(E1): Use numeric_cast to catch overflow here
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::basegfx::B2IRange aActualArea( 0, 0,
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static_cast<sal_Int32>(rOutputArea.getWidth()),
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static_cast<sal_Int32>(rOutputArea.getHeight()) );
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aActualArea.intersect( fround( rUpdateArea ) );
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// repaint the given area of the screen with background content
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rBackBuffer->draw(aActualArea);
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}
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void spriteRedraw( const ::canvas::Sprite::Reference& rSprite )
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{
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// downcast to derived dxcanvas::Sprite interface, which
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// provides the actual redraw methods.
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::boost::polymorphic_downcast< Sprite* >(
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rSprite.get() )->redraw();
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}
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}
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SpriteCanvasHelper::SpriteCanvasHelper() :
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mpSpriteSurface( nullptr ),
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mpRedrawManager( nullptr ),
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mpRenderModule(),
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mpSurfaceProxy(),
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mpBackBuffer(),
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maUpdateRect(),
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maScrapRect(),
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mbShowSpriteBounds( false )
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{
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#if OSL_DEBUG_LEVEL > 0
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// inverse default for verbose debug mode
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mbShowSpriteBounds = true;
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#endif
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}
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void SpriteCanvasHelper::init( SpriteCanvas& rParent,
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::canvas::SpriteRedrawManager& rManager,
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const IDXRenderModuleSharedPtr& rRenderModule,
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const std::shared_ptr<canvas::ISurfaceProxyManager>& rSurfaceProxy,
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const DXSurfaceBitmapSharedPtr& rBackBuffer,
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const ::basegfx::B2ISize& rOutputOffset )
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{
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// init base
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setDevice( rParent );
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setTarget( rBackBuffer, rOutputOffset );
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mpSpriteSurface = &rParent;
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mpRedrawManager = &rManager;
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mpRenderModule = rRenderModule;
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mpSurfaceProxy = rSurfaceProxy;
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mpBackBuffer = rBackBuffer;
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}
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void SpriteCanvasHelper::disposing()
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{
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if(mpRenderModule)
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mpRenderModule->disposing();
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mpBackBuffer.reset();
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mpRenderModule.reset();
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mpRedrawManager = nullptr;
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mpSpriteSurface = nullptr;
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// forward to base
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CanvasHelper::disposing();
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}
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uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromAnimation(
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const uno::Reference< rendering::XAnimation >& /*animation*/ )
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{
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return uno::Reference< rendering::XAnimatedSprite >();
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}
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uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromBitmaps(
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const uno::Sequence< uno::Reference< rendering::XBitmap > >& /*animationBitmaps*/,
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sal_Int8 /*interpolationMode*/ )
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{
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return uno::Reference< rendering::XAnimatedSprite >();
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}
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uno::Reference< rendering::XCustomSprite > SpriteCanvasHelper::createCustomSprite( const geometry::RealSize2D& spriteSize )
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{
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if( !mpRedrawManager )
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return uno::Reference< rendering::XCustomSprite >(); // we're disposed
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return uno::Reference< rendering::XCustomSprite >(
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new CanvasCustomSprite( spriteSize,
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mpSpriteSurface,
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mpRenderModule,
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mpSurfaceProxy,
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mbShowSpriteBounds ) );
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}
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uno::Reference< rendering::XSprite > SpriteCanvasHelper::createClonedSprite( const uno::Reference< rendering::XSprite >& /*original*/ )
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{
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return uno::Reference< rendering::XSprite >();
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}
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bool SpriteCanvasHelper::updateScreen( const ::basegfx::B2IRectangle& rCurrArea,
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bool bUpdateAll,
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bool& io_bSurfaceDirty )
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{
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if( !mpRedrawManager ||
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!mpRenderModule ||
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!mpBackBuffer )
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{
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return false; // disposed, or otherwise dysfunctional
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}
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// store current output area (need to tunnel that to the
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// background, scroll, opaque and general sprite repaint
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// routines)
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maScrapRect = rCurrArea;
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// clear area that needs to be blitted to screen beforehand
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maUpdateRect.reset();
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// TODO(P1): Might be worthwhile to track areas of background
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// changes, too.
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// TODO(P2): Might be worthwhile to use page-flipping only if
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// a certain percentage of screen area has changed - and
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// compose directly to the front buffer otherwise.
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if( !bUpdateAll && !io_bSurfaceDirty )
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{
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// background has not changed, so we're free to optimize
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// repaint to areas where a sprite has changed
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// process each independent area of overlapping sprites
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// separately.
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mpRedrawManager->forEachSpriteArea( *this );
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// flip primary surface to screen
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// ==============================
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// perform buffer flipping
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mpRenderModule->flip( maUpdateRect,
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rCurrArea );
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}
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else
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{
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// limit update to parent window area (ignored for fullscreen)
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// TODO(E1): Use numeric_cast to catch overflow here
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const ::basegfx::B2IRectangle aUpdateArea( 0,0,
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static_cast<sal_Int32>(rCurrArea.getWidth()),
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static_cast<sal_Int32>(rCurrArea.getHeight()) );
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// background has changed, or called requested full
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// update, or we're performing double buffering via page
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// flipping, so we currently have no choice but repaint
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// everything
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// repaint the whole screen with background content
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mpBackBuffer->draw(aUpdateArea);
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// redraw sprites
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mpRedrawManager->forEachSprite( &spriteRedraw );
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// flip primary surface to screen
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// ==============================
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// perform buffer flipping
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mpRenderModule->flip( aUpdateArea,
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rCurrArea );
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}
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// change record vector must be cleared, for the next turn of
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// rendering and sprite changing
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mpRedrawManager->clearChangeRecords();
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io_bSurfaceDirty = false;
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return true;
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}
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void SpriteCanvasHelper::backgroundPaint( const ::basegfx::B2DRange& rUpdateRect )
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{
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ENSURE_OR_THROW( mpRenderModule &&
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mpBackBuffer,
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"SpriteCanvasHelper::backgroundPaint(): NULL device pointer " );
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repaintBackground( rUpdateRect,
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maScrapRect,
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mpBackBuffer );
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}
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void SpriteCanvasHelper::scrollUpdate( const ::basegfx::B2DRange& /*rMoveStart*/,
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const ::basegfx::B2DRange& rMoveEnd,
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const ::canvas::SpriteRedrawManager::UpdateArea& rUpdateArea )
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{
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ENSURE_OR_THROW( mpRenderModule &&
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mpBackBuffer,
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"SpriteCanvasHelper::scrollUpdate(): NULL device pointer " );
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// round rectangles to integer pixel. Note: have to be
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// extremely careful here, to avoid off-by-one errors for
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// the destination area: otherwise, the next scroll update
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// would copy pixel that are not supposed to be part of
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// the sprite.
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const ::basegfx::B2IRange& rDestRect(
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::canvas::tools::spritePixelAreaFromB2DRange( rMoveEnd ) );
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// not much sense in really implementing scrollUpdate here,
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// since outputting a sprite only partially would result in
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// expensive clipping. Furthermore, we cannot currently render
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// 3D directly to the front buffer, thus, would have to blit
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// the full sprite area, anyway. But at least optimized in the
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// sense that unnecessary background paints behind the sprites
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// are avoided.
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for( const auto& rComponent : rUpdateArea.maComponentList )
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{
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const ::canvas::Sprite::Reference& rSprite( rComponent.second.getSprite() );
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if( rSprite.is() )
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{
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// downcast to derived dxcanvas::Sprite interface, which
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// provides the actual redraw methods.
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::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
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}
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}
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// repaint uncovered areas from backbuffer - take the
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// _rounded_ rectangles from above, to have the update
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// consistent with the scroll above.
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std::vector< ::basegfx::B2DRange > aUncoveredAreas;
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::basegfx::computeSetDifference( aUncoveredAreas,
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rUpdateArea.maTotalBounds,
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::basegfx::B2DRange( rDestRect ) );
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for( const auto& rUncoveredArea : aUncoveredAreas )
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repaintBackground( rUncoveredArea, maScrapRect, mpBackBuffer );
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// TODO(E1): Use numeric_cast to catch overflow here
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::basegfx::B2IRange aActualArea( 0, 0,
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static_cast<sal_Int32>(maScrapRect.getWidth()),
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static_cast<sal_Int32>(maScrapRect.getHeight()) );
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aActualArea.intersect( fround( rUpdateArea.maTotalBounds ) );
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// add given update area to the 'blit to foreground' rect
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maUpdateRect.expand( aActualArea );
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}
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void SpriteCanvasHelper::opaqueUpdate( const ::basegfx::B2DRange& rTotalArea,
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const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
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{
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ENSURE_OR_THROW( mpRenderModule &&
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mpBackBuffer,
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"SpriteCanvasHelper::opaqueUpdate(): NULL device pointer " );
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// TODO(P2): optimize this by truly rendering to the front
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// buffer. Currently, we've the 3D device only for the back
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// buffer.
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for( const auto& rSprite : rSortedUpdateSprites )
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{
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if( rSprite.is() )
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{
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// downcast to derived dxcanvas::Sprite interface, which
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// provides the actual redraw methods.
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::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
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}
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}
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// TODO(E1): Use numeric_cast to catch overflow here
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::basegfx::B2IRange aActualArea( 0, 0,
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static_cast<sal_Int32>(maScrapRect.getWidth()),
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static_cast<sal_Int32>(maScrapRect.getHeight()) );
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aActualArea.intersect( fround( rTotalArea ) );
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// add given update area to the 'blit to foreground' rect
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maUpdateRect.expand( aActualArea );
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}
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void SpriteCanvasHelper::genericUpdate( const ::basegfx::B2DRange& rTotalArea,
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const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
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{
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ENSURE_OR_THROW( mpRenderModule &&
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mpBackBuffer,
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"SpriteCanvasHelper::genericUpdate(): NULL device pointer " );
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// paint background
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// ================
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// TODO(E1): Use numeric_cast to catch overflow here
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::basegfx::B2IRange aActualArea( 0, 0,
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static_cast<sal_Int32>(maScrapRect.getWidth()),
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static_cast<sal_Int32>(maScrapRect.getHeight()) );
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aActualArea.intersect( fround( rTotalArea ) );
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// repaint the given area of the screen with background content
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mpBackBuffer->draw(aActualArea);
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// paint sprite
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// ============
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for( const auto& rSprite : rSortedUpdateSprites )
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{
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if( rSprite.is() )
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{
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// downcast to derived dxcanvas::Sprite interface, which
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// provides the actual redraw methods.
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::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
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}
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}
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// add given update area to the 'blit to foreground' rect
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maUpdateRect.expand( aActualArea );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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