diff options
Diffstat (limited to 'canvas/source/directx/dx_bitmap.cxx')
| -rw-r--r-- | canvas/source/directx/dx_bitmap.cxx | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/canvas/source/directx/dx_bitmap.cxx b/canvas/source/directx/dx_bitmap.cxx new file mode 100644 index 000000000..2f42170d6 --- /dev/null +++ b/canvas/source/directx/dx_bitmap.cxx @@ -0,0 +1,204 @@ +/* -*- 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 <memory> + +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/range/b2irange.hxx> +#include <tools/diagnose_ex.h> + +#include "dx_bitmap.hxx" +#include "dx_graphicsprovider.hxx" +#include "dx_impltools.hxx" + +using namespace ::com::sun::star; + +namespace dxcanvas +{ + + // DXBitmap::DXBitmap + + + DXBitmap::DXBitmap( const BitmapSharedPtr& rBitmap, + bool bWithAlpha ) : + mpGdiPlusUser( GDIPlusUser::createInstance() ), + maSize(rBitmap->GetWidth(),rBitmap->GetHeight()), + mpBitmap(rBitmap), + mpGraphics(tools::createGraphicsFromBitmap(mpBitmap)), + mbAlpha(bWithAlpha) + { + } + + DXBitmap::DXBitmap( const ::basegfx::B2IVector& rSize, + bool bWithAlpha ) : + mpGdiPlusUser( GDIPlusUser::createInstance() ), + maSize(rSize), + mpBitmap(), + mpGraphics(), + mbAlpha(bWithAlpha) + { + // create container for pixel data + if(mbAlpha) + { + mpBitmap = std::make_shared<Gdiplus::Bitmap>( + maSize.getX(), + maSize.getY(), + PixelFormat32bppARGB); + } + else + { + mpBitmap = std::make_shared<Gdiplus::Bitmap>( + maSize.getX(), + maSize.getY(), + PixelFormat24bppRGB); + } + + mpGraphics = tools::createGraphicsFromBitmap(mpBitmap); + } + + BitmapSharedPtr DXBitmap::getBitmap() const + { + return mpBitmap; + } + + GraphicsSharedPtr DXBitmap::getGraphics() + { + return mpGraphics; + } + + ::basegfx::B2IVector DXBitmap::getSize() const + { + return maSize; + } + + bool DXBitmap::hasAlpha() const + { + return mbAlpha; + } + + uno::Sequence< sal_Int8 > DXBitmap::getData( rendering::IntegerBitmapLayout& /*bitmapLayout*/, + const geometry::IntegerRectangle2D& rect ) + { + uno::Sequence< sal_Int8 > aRes( (rect.X2-rect.X1)*(rect.Y2-rect.Y1)*4 ); // TODO(F1): Be format-agnostic here + + const Gdiplus::Rect aRect( tools::gdiPlusRectFromIntegerRectangle2D( rect ) ); + + Gdiplus::BitmapData aBmpData; + aBmpData.Width = rect.X2-rect.X1; + aBmpData.Height = rect.Y2-rect.Y1; + aBmpData.Stride = 4*aBmpData.Width; + aBmpData.PixelFormat = PixelFormat32bppARGB; + aBmpData.Scan0 = aRes.getArray(); + + // TODO(F1): Support more pixel formats natively + + // read data from bitmap + if( Gdiplus::Ok != mpBitmap->LockBits( &aRect, + Gdiplus::ImageLockModeRead | Gdiplus::ImageLockModeUserInputBuf, + PixelFormat32bppARGB, // TODO(F1): Adapt to + // Graphics native + // format/change + // getMemoryLayout + &aBmpData ) ) + { + // failed to lock, bail out + return uno::Sequence< sal_Int8 >(); + } + + mpBitmap->UnlockBits( &aBmpData ); + + return aRes; + } + + void DXBitmap::setData( const uno::Sequence< sal_Int8 >& data, + const rendering::IntegerBitmapLayout& /*bitmapLayout*/, + const geometry::IntegerRectangle2D& rect ) + { + const Gdiplus::Rect aRect( tools::gdiPlusRectFromIntegerRectangle2D( rect ) ); + + Gdiplus::BitmapData aBmpData; + aBmpData.Width = rect.X2-rect.X1; + aBmpData.Height = rect.Y2-rect.Y1; + aBmpData.Stride = 4*aBmpData.Width; + aBmpData.PixelFormat = PixelFormat32bppARGB; + aBmpData.Scan0 = const_cast<sal_Int8 *>(data.getConstArray()); + // const_cast is safe, "Gdiplus::ImageLockModeWrite + // | Gdiplus::ImageLockModeUserInputBuf makes the data go from + // BitmapData into Bitmap", says Thorsten + + // TODO(F1): Support more pixel formats natively + + if( Gdiplus::Ok != mpBitmap->LockBits( &aRect, + Gdiplus::ImageLockModeWrite | Gdiplus::ImageLockModeUserInputBuf, + PixelFormat32bppARGB, // TODO: Adapt to + // Graphics native + // format/change + // getMemoryLayout + &aBmpData ) ) + { + throw uno::RuntimeException(); + } + + // commit data to bitmap + mpBitmap->UnlockBits( &aBmpData ); + } + + void DXBitmap::setPixel( const uno::Sequence< sal_Int8 >& color, + const rendering::IntegerBitmapLayout& /*bitmapLayout*/, + const geometry::IntegerPoint2D& pos ) + { + const geometry::IntegerSize2D aSize( maSize.getX(),maSize.getY() ); + + ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aSize.Width, + "CanvasHelper::setPixel: X coordinate out of bounds" ); + ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aSize.Height, + "CanvasHelper::setPixel: Y coordinate out of bounds" ); + ENSURE_ARG_OR_THROW( color.getLength() > 3, + "CanvasHelper::setPixel: not enough color components" ); + + if( Gdiplus::Ok != mpBitmap->SetPixel( pos.X, pos.Y, + Gdiplus::Color( tools::sequenceToArgb( color )))) + { + throw uno::RuntimeException(); + } + } + + uno::Sequence< sal_Int8 > DXBitmap::getPixel( rendering::IntegerBitmapLayout& /*bitmapLayout*/, + const geometry::IntegerPoint2D& pos ) + { + const geometry::IntegerSize2D aSize( maSize.getX(),maSize.getY() ); + + ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aSize.Width, + "CanvasHelper::getPixel: X coordinate out of bounds" ); + ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aSize.Height, + "CanvasHelper::getPixel: Y coordinate out of bounds" ); + + Gdiplus::Color aColor; + + if( Gdiplus::Ok != mpBitmap->GetPixel( pos.X, pos.Y, &aColor ) ) + return uno::Sequence< sal_Int8 >(); + + return tools::argbToIntSequence(aColor.GetValue()); + } + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |