Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 352 insertions, 0 deletions

diff --git a/canvas/source/directx/dx_spritecanvashelper.cxx b/canvas/source/directx/dx_spritecanvashelper.cxx
new file mode 100644
index 000000000..416c66ba5
--- /dev/null
+++ b/canvas/source/directx/dx_spritecanvashelper.cxx
@@ -0,0 +1,352 @@
+/* -*- 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 <boost/cast.hpp>
+
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <comphelper/scopeguard.hxx>
+#include <tools/diagnose_ex.h>
+
+#include <canvas/canvastools.hxx>
+
+#include "dx_canvascustomsprite.hxx"
+#include "dx_spritecanvashelper.hxx"
+
+using namespace ::com::sun::star;
+
+namespace dxcanvas
+{
+    namespace
+    {
+        void repaintBackground( const ::basegfx::B2DRange&      rUpdateArea,
+                                const ::basegfx::B2IRange&      rOutputArea,
+                                const DXSurfaceBitmapSharedPtr& rBackBuffer )
+        {
+            // TODO(E1): Use numeric_cast to catch overflow here
+            ::basegfx::B2IRange aActualArea( 0, 0,
+                                             static_cast<sal_Int32>(rOutputArea.getWidth()),
+                                             static_cast<sal_Int32>(rOutputArea.getHeight()) );
+            aActualArea.intersect( fround( rUpdateArea ) );
+
+            // repaint the given area of the screen with background content
+            rBackBuffer->draw(aActualArea);
+        }
+
+        void spriteRedraw( const ::canvas::Sprite::Reference& rSprite )
+        {
+            // downcast to derived dxcanvas::Sprite interface, which
+            // provides the actual redraw methods.
+            ::boost::polymorphic_downcast< Sprite* >(
+                rSprite.get() )->redraw();
+        }
+    }
+
+    SpriteCanvasHelper::SpriteCanvasHelper() :
+        mpSpriteSurface( nullptr ),
+        mpRedrawManager( nullptr ),
+        mpRenderModule(),
+        mpSurfaceProxy(),
+        mpBackBuffer(),
+        maUpdateRect(),
+        maScrapRect(),
+        mbShowSpriteBounds( false )
+    {
+#if OSL_DEBUG_LEVEL > 0
+        // inverse default for verbose debug mode
+        mbShowSpriteBounds = true;
+#endif
+    }
+
+    void SpriteCanvasHelper::init( SpriteCanvas&                                    rParent,
+                                   ::canvas::SpriteRedrawManager&                   rManager,
+                                   const IDXRenderModuleSharedPtr&                  rRenderModule,
+                                   const std::shared_ptr<canvas::ISurfaceProxyManager>&   rSurfaceProxy,
+                                   const DXSurfaceBitmapSharedPtr&                  rBackBuffer,
+                                   const ::basegfx::B2ISize&                        rOutputOffset )
+    {
+        // init base
+        setDevice( rParent );
+        setTarget( rBackBuffer, rOutputOffset );
+
+        mpSpriteSurface = &rParent;
+        mpRedrawManager = &rManager;
+        mpRenderModule  = rRenderModule;
+        mpSurfaceProxy  = rSurfaceProxy;
+        mpBackBuffer    = rBackBuffer;
+    }
+
+    void SpriteCanvasHelper::disposing()
+    {
+        if(mpRenderModule)
+            mpRenderModule->disposing();
+
+        mpBackBuffer.reset();
+        mpRenderModule.reset();
+        mpRedrawManager = nullptr;
+        mpSpriteSurface = nullptr;
+
+        // forward to base
+        CanvasHelper::disposing();
+    }
+
+    uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromAnimation(
+        const uno::Reference< rendering::XAnimation >& /*animation*/ )
+    {
+        return uno::Reference< rendering::XAnimatedSprite >();
+    }
+
+    uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromBitmaps(
+        const uno::Sequence< uno::Reference< rendering::XBitmap > >& /*animationBitmaps*/,
+        sal_Int8                                                     /*interpolationMode*/ )
+    {
+        return uno::Reference< rendering::XAnimatedSprite >();
+    }
+
+    uno::Reference< rendering::XCustomSprite > SpriteCanvasHelper::createCustomSprite( const geometry::RealSize2D& spriteSize )
+    {
+        if( !mpRedrawManager )
+            return uno::Reference< rendering::XCustomSprite >(); // we're disposed
+
+        return uno::Reference< rendering::XCustomSprite >(
+            new CanvasCustomSprite( spriteSize,
+                                    mpSpriteSurface,
+                                    mpRenderModule,
+                                    mpSurfaceProxy,
+                                    mbShowSpriteBounds ) );
+    }
+
+    uno::Reference< rendering::XSprite > SpriteCanvasHelper::createClonedSprite( const uno::Reference< rendering::XSprite >& /*original*/ )
+    {
+        return uno::Reference< rendering::XSprite >();
+    }
+
+    bool SpriteCanvasHelper::updateScreen( const ::basegfx::B2IRectangle& rCurrArea,
+                                           bool                           bUpdateAll,
+                                           bool&                          io_bSurfaceDirty )
+    {
+        if( !mpRedrawManager ||
+            !mpRenderModule ||
+            !mpBackBuffer )
+        {
+            return false; // disposed, or otherwise dysfunctional
+        }
+
+        // store current output area (need to tunnel that to the
+        // background, scroll, opaque and general sprite repaint
+        // routines)
+        maScrapRect = rCurrArea;
+
+        // clear area that needs to be blitted to screen beforehand
+        maUpdateRect.reset();
+
+        // TODO(P1): Might be worthwhile to track areas of background
+        // changes, too.
+
+        // TODO(P2): Might be worthwhile to use page-flipping only if
+        // a certain percentage of screen area has changed - and
+        // compose directly to the front buffer otherwise.
+        if( !bUpdateAll && !io_bSurfaceDirty )
+        {
+            // background has not changed, so we're free to optimize
+            // repaint to areas where a sprite has changed
+
+            // process each independent area of overlapping sprites
+            // separately.
+            mpRedrawManager->forEachSpriteArea( *this );
+
+            // flip primary surface to screen
+            // ==============================
+
+            // perform buffer flipping
+            mpRenderModule->flip( maUpdateRect,
+                                  rCurrArea );
+        }
+        else
+        {
+            // limit update to parent window area (ignored for fullscreen)
+            // TODO(E1): Use numeric_cast to catch overflow here
+            const ::basegfx::B2IRectangle aUpdateArea( 0,0,
+                                                       static_cast<sal_Int32>(rCurrArea.getWidth()),
+                                                       static_cast<sal_Int32>(rCurrArea.getHeight()) );
+
+            // background has changed, or called requested full
+            // update, or we're performing double buffering via page
+            // flipping, so we currently have no choice but repaint
+            // everything
+
+            // repaint the whole screen with background content
+            mpBackBuffer->draw(aUpdateArea);
+
+            // redraw sprites
+            mpRedrawManager->forEachSprite( &spriteRedraw );
+
+            // flip primary surface to screen
+            // ==============================
+
+            // perform buffer flipping
+            mpRenderModule->flip( aUpdateArea,
+                                  rCurrArea );
+        }
+
+        // change record vector must be cleared, for the next turn of
+        // rendering and sprite changing
+        mpRedrawManager->clearChangeRecords();
+
+        io_bSurfaceDirty = false;
+
+        return true;
+    }
+
+    void SpriteCanvasHelper::backgroundPaint( const ::basegfx::B2DRange& rUpdateRect )
+    {
+        ENSURE_OR_THROW( mpRenderModule &&
+                          mpBackBuffer,
+                          "SpriteCanvasHelper::backgroundPaint(): NULL device pointer " );
+
+        repaintBackground( rUpdateRect,
+                           maScrapRect,
+                           mpBackBuffer );
+    }
+
+    void SpriteCanvasHelper::scrollUpdate( const ::basegfx::B2DRange&                       /*rMoveStart*/,
+                                           const ::basegfx::B2DRange&                       rMoveEnd,
+                                           const ::canvas::SpriteRedrawManager::UpdateArea& rUpdateArea )
+    {
+        ENSURE_OR_THROW( mpRenderModule &&
+                          mpBackBuffer,
+                          "SpriteCanvasHelper::scrollUpdate(): NULL device pointer " );
+
+        // round rectangles to integer pixel. Note: have to be
+        // extremely careful here, to avoid off-by-one errors for
+        // the destination area: otherwise, the next scroll update
+        // would copy pixel that are not supposed to be part of
+        // the sprite.
+        const ::basegfx::B2IRange& rDestRect(
+            ::canvas::tools::spritePixelAreaFromB2DRange( rMoveEnd ) );
+
+        // not much sense in really implementing scrollUpdate here,
+        // since outputting a sprite only partially would result in
+        // expensive clipping. Furthermore, we cannot currently render
+        // 3D directly to the front buffer, thus, would have to blit
+        // the full sprite area, anyway. But at least optimized in the
+        // sense that unnecessary background paints behind the sprites
+        // are avoided.
+        for( const auto& rComponent : rUpdateArea.maComponentList )
+        {
+            const ::canvas::Sprite::Reference& rSprite( rComponent.second.getSprite() );
+
+            if( rSprite.is() )
+            {
+                // downcast to derived dxcanvas::Sprite interface, which
+                // provides the actual redraw methods.
+                ::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
+            }
+        }
+
+        // repaint uncovered areas from backbuffer - take the
+        // _rounded_ rectangles from above, to have the update
+        // consistent with the scroll above.
+        std::vector< ::basegfx::B2DRange > aUncoveredAreas;
+        ::basegfx::computeSetDifference( aUncoveredAreas,
+                                         rUpdateArea.maTotalBounds,
+                                         ::basegfx::B2DRange( rDestRect ) );
+        for( const auto& rUncoveredArea : aUncoveredAreas )
+            repaintBackground( rUncoveredArea, maScrapRect, mpBackBuffer );
+
+        // TODO(E1): Use numeric_cast to catch overflow here
+        ::basegfx::B2IRange aActualArea( 0, 0,
+                                         static_cast<sal_Int32>(maScrapRect.getWidth()),
+                                         static_cast<sal_Int32>(maScrapRect.getHeight()) );
+        aActualArea.intersect( fround( rUpdateArea.maTotalBounds ) );
+
+        // add given update area to the 'blit to foreground' rect
+        maUpdateRect.expand( aActualArea );
+    }
+
+    void SpriteCanvasHelper::opaqueUpdate( const ::basegfx::B2DRange&                          rTotalArea,
+                                           const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
+    {
+        ENSURE_OR_THROW( mpRenderModule &&
+                          mpBackBuffer,
+                          "SpriteCanvasHelper::opaqueUpdate(): NULL device pointer " );
+
+        // TODO(P2): optimize this by truly rendering to the front
+        // buffer. Currently, we've the 3D device only for the back
+        // buffer.
+        for( const auto& rSprite : rSortedUpdateSprites )
+        {
+            if( rSprite.is() )
+            {
+                // downcast to derived dxcanvas::Sprite interface, which
+                // provides the actual redraw methods.
+                ::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
+            }
+        }
+
+        // TODO(E1): Use numeric_cast to catch overflow here
+        ::basegfx::B2IRange aActualArea( 0, 0,
+                                         static_cast<sal_Int32>(maScrapRect.getWidth()),
+                                         static_cast<sal_Int32>(maScrapRect.getHeight()) );
+        aActualArea.intersect( fround( rTotalArea ) );
+
+        // add given update area to the 'blit to foreground' rect
+        maUpdateRect.expand( aActualArea );
+    }
+
+    void SpriteCanvasHelper::genericUpdate( const ::basegfx::B2DRange&                          rTotalArea,
+                                            const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
+    {
+        ENSURE_OR_THROW( mpRenderModule &&
+                          mpBackBuffer,
+                          "SpriteCanvasHelper::genericUpdate(): NULL device pointer " );
+
+        // paint background
+        // ================
+
+        // TODO(E1): Use numeric_cast to catch overflow here
+        ::basegfx::B2IRange aActualArea( 0, 0,
+                                         static_cast<sal_Int32>(maScrapRect.getWidth()),
+                                         static_cast<sal_Int32>(maScrapRect.getHeight()) );
+        aActualArea.intersect( fround( rTotalArea ) );
+
+        // repaint the given area of the screen with background content
+        mpBackBuffer->draw(aActualArea);
+
+        // paint sprite
+        // ============
+
+        for( const auto& rSprite : rSortedUpdateSprites )
+        {
+            if( rSprite.is() )
+            {
+                // downcast to derived dxcanvas::Sprite interface, which
+                // provides the actual redraw methods.
+                ::boost::polymorphic_downcast< Sprite* >( rSprite.get() )->redraw();
+            }
+        }
+
+        // add given update area to the 'blit to foreground' rect
+        maUpdateRect.expand( aActualArea );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */