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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/.
*
* 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 <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.reset(
new Gdiplus::Bitmap(
maSize.getX(),
maSize.getY(),
PixelFormat32bppARGB));
}
else
{
mpBitmap.reset(
new Gdiplus::Bitmap(
maSize.getX(),
maSize.getY(),
PixelFormat24bppRGB));
}
mpGraphics.reset( 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: */
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