20b6985553
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31959 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1328 lines
35 KiB
C++
1328 lines
35 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: bitmap.cpp
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// Purpose: wxBitmap
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// Author: Stefan Csomor
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// Modified by:
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// Created: 1998-01-01
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// RCS-ID: $Id$
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// Copyright: (c) Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "bitmap.h"
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#endif
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#include "wx/wxprec.h"
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#include "wx/bitmap.h"
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#include "wx/icon.h"
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#include "wx/log.h"
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#include "wx/image.h"
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#include "wx/metafile.h"
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#include "wx/xpmdecod.h"
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#include "wx/rawbmp.h"
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IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
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IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
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IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject )
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#ifdef __DARWIN__
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#include <ApplicationServices/ApplicationServices.h>
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#else
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#include <PictUtils.h>
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#endif
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#include "wx/mac/uma.h"
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// Implementation Notes
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// --------------------
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//
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// we are always working with a 32 bit deep pixel buffer
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// under QuickDraw its alpha parts are going to be ignored in the GWorld,
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// therefore we have a separate GWorld there for blitting the mask in
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// under Quartz then content is transformed into a CGImageRef representing the same data
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// which can be transferred to the GPU by the OS for fast rendering
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// we don't dare premultiplied alpha yet
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#define wxMAC_USE_PREMULTIPLIED_ALPHA 0
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IconRef wxMacCreateIconRef(const wxBitmap& bmp)
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{
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// setup the header properly
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IconFamilyHandle iconFamily = (IconFamilyHandle) NewHandle(8) ;
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(**iconFamily).resourceType = kIconFamilyType ;
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(**iconFamily).resourceSize = sizeof(OSType) + sizeof(Size);
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int w = bmp.GetWidth() ;
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int h = bmp.GetHeight() ;
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int sz = wxMax( w , h ) ;
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if ( sz > 128 )
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{
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wxFAIL_MSG( wxT("Currently only 128 pixels wide images are supported") ) ;
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}
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Handle data = NULL ;
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Handle maskdata = NULL ;
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unsigned char * maskptr = NULL ;
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unsigned char * ptr = NULL ;
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size_t size ;
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size_t masksize ;
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OSType dataType ;
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OSType maskType ;
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bool hasAlpha = bmp.HasAlpha() ;
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wxMask *mask = bmp.GetMask() ;
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// thumbnail is 128 x 128 with 32 bits per pixel
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if ( sz > 48 )
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{
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sz = 128 ;
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dataType = kThumbnail32BitData ;
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maskType = kThumbnail8BitMask ;
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}
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else if ( sz > 32 )
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{
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sz = 48 ;
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dataType = kHuge32BitData ;
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maskType = kHuge8BitMask ;
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}
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else if ( sz > 16 )
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{
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sz = 32 ;
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dataType = kLarge32BitData ;
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maskType = kLarge8BitMask ;
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}
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else
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{
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sz = 16 ;
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dataType = kSmall32BitData ;
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maskType = kSmall8BitMask ;
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}
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size = sz * sz * 4 ;
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data = NewHandle( size) ;
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HLock( data ) ;
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ptr = (unsigned char*) *data ;
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memset( ptr , 0, size ) ;
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masksize = sz * sz ;
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maskdata = NewHandle( masksize ) ;
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HLock( maskdata ) ;
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maskptr = (unsigned char*) *maskdata ;
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memset( maskptr , 0 , masksize ) ;
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unsigned char * source = (unsigned char*) bmp.GetRawAccess() ;
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unsigned char * masksource = mask ? (unsigned char*) mask->GetRawAccess() : NULL ;
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for ( int y = 0 ; y < h ; ++y )
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{
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unsigned char * dest = ptr + y * sz * 4 ;
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unsigned char * maskdest = maskptr + y * sz ;
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for ( int x = 0 ; x < w ; ++x )
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{
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unsigned char a = *source ++ ;
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unsigned char r = *source ++ ;
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unsigned char g = *source ++ ;
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unsigned char b = *source ++ ;
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*dest++ = 0 ;
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*dest++ = r ;
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*dest++ = g ;
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*dest++ = b ;
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if ( mask )
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*maskdest++ = *masksource++ ;
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else if ( hasAlpha )
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*maskdest++ = a ;
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else
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*maskdest++ = 0xFF ;
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}
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}
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OSStatus err = SetIconFamilyData( iconFamily, dataType , data ) ;
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wxASSERT_MSG( err == noErr , wxT("Error when adding bitmap") ) ;
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err = SetIconFamilyData( iconFamily, maskType , maskdata ) ;
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wxASSERT_MSG( err == noErr , wxT("Error when adding mask") ) ;
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HUnlock( data ) ;
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HUnlock( maskdata ) ;
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DisposeHandle( data ) ;
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DisposeHandle( maskdata ) ;
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IconRef iconRef ;
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static int iconCounter = 2 ;
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err = RegisterIconRefFromIconFamily( 'WXNG' , (OSType) iconCounter, iconFamily, &iconRef ) ;
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UInt16 owners ;
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err = GetIconRefOwners(iconRef , &owners ) ;
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wxASSERT_MSG( err == noErr , wxT("Error when adding bitmap") ) ;
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// we have to retain a reference, as Unregister will decrement it
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AcquireIconRef( iconRef ) ;
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UnregisterIconRef( 'WXNG' , (OSType) iconCounter ) ;
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DisposeHandle( (Handle) iconFamily ) ;
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++iconCounter ;
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return iconRef ;
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}
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void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bitmap , int forceType )
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{
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memset( info , 0 , sizeof(ControlButtonContentInfo) ) ;
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if ( bitmap.Ok() )
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{
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wxBitmapRefData * bmap = (wxBitmapRefData*) ( bitmap.GetRefData()) ;
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if ( bmap == NULL )
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return ;
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info->contentType = kControlContentIconRef ;
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info->u.iconRef = wxMacCreateIconRef( bitmap ) ;
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#if wxMAC_USE_CORE_GRAPHICS
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/*
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// only on 10.4 more controls will accept a CGImage
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info->contentType = kControlContentCGImageRef ;
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info->u.imageRef = (CGImageRef) bmap->CGImageCreate() ;
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*/
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#endif
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}
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}
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void wxMacReleaseBitmapButton( ControlButtonContentInfo*info )
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{
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if ( info->contentType == kControlContentIconRef )
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{
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ReleaseIconRef(info->u.iconRef) ;
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}
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#if wxMAC_USE_CORE_GRAPHICS
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else if ( info->contentType == kControlContentCGImageRef )
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{
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CGImageRelease( info->u.imageRef ) ;
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}
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#endif
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else
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{
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wxFAIL_MSG(wxT("Unexpected bitmap type") ) ;
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}
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}
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void wxBitmapRefData::Init()
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{
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m_width = 0 ;
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m_height = 0 ;
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m_depth = 0 ;
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m_ok = false ;
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m_bitmapMask = NULL ;
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#if wxMAC_USE_CORE_GRAPHICS
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m_cgImageRef = NULL ;
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#else
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m_hBitmap = NULL ;
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m_hMaskBitmap = NULL;
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m_maskBytesPerRow = NULL ;
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#endif
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m_rawAccessCount = 0 ;
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m_hasAlpha = false;
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}
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wxBitmapRefData::wxBitmapRefData()
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{
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Init() ;
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}
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wxBitmapRefData::wxBitmapRefData( int w , int h , int d )
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{
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Init() ;
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Create( w , h , d ) ;
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}
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bool wxBitmapRefData::Create( int w , int h , int d )
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{
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m_width = w ;
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m_height = h ;
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m_depth = d ;
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m_bytesPerRow = w * 4 ;
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size_t size = m_bytesPerRow * h ;
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void* data = m_memBuf.GetWriteBuf(size) ;
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memset( data , 0 , size) ;
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m_memBuf.UngetWriteBuf(size) ;
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#if wxMAC_USE_CORE_GRAPHICS
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m_ok = true ;
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#else
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m_hBitmap = NULL ;
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Rect rect = { 0 , 0 , m_height , m_width } ;
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verify_noerr( NewGWorldFromPtr( (GWorldPtr*) &m_hBitmap , k32ARGBPixelFormat , &rect , NULL , NULL , 0 ,
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(char*) data , m_bytesPerRow ) ) ;
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wxASSERT_MSG( m_hBitmap , wxT("Unable to create GWorld context") ) ;
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m_ok = ( m_hBitmap != NULL ) ;
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#endif
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return m_ok ;
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}
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void wxBitmapRefData::UseAlpha( bool use )
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{
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if ( m_hasAlpha == use )
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return ;
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m_hasAlpha = use ;
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#if !wxMAC_USE_CORE_GRAPHICS
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if ( m_hasAlpha )
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{
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int width = GetWidth() ;
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int height = GetHeight() ;
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m_maskBytesPerRow = ( width + 3 ) & 0xFFFFFFC ;
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size_t size = height * m_maskBytesPerRow ;
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unsigned char * data = (unsigned char * ) m_maskMemBuf.GetWriteBuf( size ) ;
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memset( data , 0 , size ) ;
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wxASSERT( m_hMaskBitmap == NULL ) ;
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Rect rect = { 0 , 0 , height , width } ;
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verify_noerr( NewGWorldFromPtr( (GWorldPtr*) &m_hMaskBitmap , k8IndexedGrayPixelFormat , &rect , NULL , NULL , 0 ,
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(char*) data , m_maskBytesPerRow ) ) ;
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wxASSERT_MSG( m_hMaskBitmap , wxT("Unable to create GWorld context for alpha mask") ) ;
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m_maskMemBuf.UngetWriteBuf(size) ;
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UpdateAlphaMask() ;
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}
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else
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{
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DisposeGWorld( m_hMaskBitmap ) ;
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m_hMaskBitmap = NULL ;
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m_maskBytesPerRow = 0 ;
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}
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#endif
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}
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void *wxBitmapRefData::GetRawAccess() const
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{
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wxCHECK_MSG( Ok(), NULL , wxT("invalid bitmap") ) ;
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return m_memBuf.GetData() ;
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}
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void *wxBitmapRefData::BeginRawAccess()
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{
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wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ) ;
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wxASSERT( m_rawAccessCount == 0 ) ;
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++m_rawAccessCount ;
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#if wxMAC_USE_CORE_GRAPHICS
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// we must destroy an existing cached image, as
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// the bitmap data may change now
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if ( m_cgImageRef )
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{
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CGImageRelease( m_cgImageRef ) ;
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m_cgImageRef = NULL ;
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}
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#endif
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return m_memBuf.GetData() ;
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}
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void wxBitmapRefData::EndRawAccess()
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{
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wxCHECK_RET( Ok() , wxT("invalid bitmap") ) ;
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wxASSERT( m_rawAccessCount == 1 ) ;
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--m_rawAccessCount ;
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#if !wxMAC_USE_CORE_GRAPHICS
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UpdateAlphaMask() ;
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#endif
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}
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#if wxMAC_USE_CORE_GRAPHICS
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static void FreeImageMemoryBufferInstance(void *info, const void *data, size_t size)
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{
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delete ((wxMemoryBuffer*)info) ;
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}
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CGImageRef wxBitmapRefData::CGImageCreate() const
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{
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wxASSERT( m_ok ) ;
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wxASSERT( m_rawAccessCount >= 0 ) ;
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CGImageRef image ;
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if ( m_rawAccessCount > 0 || m_cgImageRef == NULL )
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{
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size_t imageSize = m_width * m_height * 4 ;
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void * dataBuffer = m_memBuf.GetData() ;
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int w = m_width ;
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int h = m_height ;
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CGImageAlphaInfo alphaInfo = kCGImageAlphaNoneSkipFirst ;
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wxMemoryBuffer* membuf = NULL ;
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if ( m_bitmapMask )
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{
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membuf = new wxMemoryBuffer( imageSize ) ;
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memcpy( membuf->GetData() , dataBuffer , imageSize ) ;
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unsigned char *sourcemaskstart = (unsigned char *) m_bitmapMask->GetRawAccess() ;
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int maskrowbytes = m_bitmapMask->GetBytesPerRow() ;
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unsigned char *destalpha = (unsigned char *) membuf->GetData() ;
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alphaInfo = kCGImageAlphaFirst ;
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for ( int y = 0 ; y < h ; ++y , sourcemaskstart += maskrowbytes)
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{
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unsigned char *sourcemask = sourcemaskstart ;
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for( int x = 0 ; x < w ; ++x , sourcemask++ , destalpha += 4 )
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{
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*destalpha = *sourcemask ;
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}
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}
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}
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else if ( m_hasAlpha )
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{
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#if wxMAC_USE_PREMULTIPLIED_ALPHA
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alphaInfo = kCGImageAlphaPremultipliedFirst ;
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#else
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alphaInfo = kCGImageAlphaFirst ;
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#endif
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membuf = new wxMemoryBuffer( m_memBuf ) ;
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}
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else
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{
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membuf = new wxMemoryBuffer( m_memBuf ) ;
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}
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CGColorSpaceRef colorSpace = wxMacGetGenericRGBColorSpace();
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CGDataProviderRef dataProvider =
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CGDataProviderCreateWithData( membuf , (const void *)membuf->GetData() , imageSize, FreeImageMemoryBufferInstance );
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image =
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::CGImageCreate( w, h, 8 , 32 , 4 * m_width , colorSpace, alphaInfo ,
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dataProvider, NULL , false , kCGRenderingIntentDefault );
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CGDataProviderRelease( dataProvider);
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}
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else
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{
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image = m_cgImageRef ;
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CGImageRetain( image ) ;
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}
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if ( m_rawAccessCount == 0 && m_cgImageRef == NULL)
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{
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// we keep it for later use
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m_cgImageRef = image ;
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CGImageRetain( image ) ;
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}
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return image ;
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}
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#endif
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#if !wxMAC_USE_CORE_GRAPHICS
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GWorldPtr wxBitmapRefData::GetHBITMAP(GWorldPtr* mask) const
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{
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wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
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if ( mask )
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{
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*mask = NULL ;
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if ( m_bitmapMask )
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*mask = (GWorldPtr) m_bitmapMask->GetHBITMAP() ;
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else if ( m_hasAlpha )
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{
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if ( m_rawAccessCount > 0 )
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UpdateAlphaMask() ;
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*mask = m_hMaskBitmap ;
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}
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}
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return m_hBitmap ;
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}
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void wxBitmapRefData::UpdateAlphaMask() const
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{
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if ( m_hasAlpha )
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{
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unsigned char *sourcemask = (unsigned char *) GetRawAccess() ;
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unsigned char *destalphabase = (unsigned char *) m_maskMemBuf.GetData() ;
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int h = GetHeight() ;
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int w = GetWidth() ;
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for ( int y = 0 ; y < h ; ++y , destalphabase += m_maskBytesPerRow )
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{
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unsigned char* destalpha = destalphabase ;
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for( int x = 0 ; x < w ; ++x , sourcemask += 4, ++destalpha )
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{
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*destalpha = *sourcemask ;
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}
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}
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}
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}
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#endif
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void wxBitmapRefData::Free()
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{
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wxASSERT_MSG( m_rawAccessCount == 0 , wxT("Bitmap still selected when destroyed") ) ;
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#if wxMAC_USE_CORE_GRAPHICS
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if ( m_cgImageRef )
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{
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CGImageRelease( m_cgImageRef ) ;
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m_cgImageRef = NULL ;
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}
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#else
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if ( m_hBitmap )
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{
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DisposeGWorld( MAC_WXHBITMAP(m_hBitmap) ) ;
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m_hBitmap = NULL ;
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}
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if ( m_hMaskBitmap )
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{
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DisposeGWorld( MAC_WXHBITMAP(m_hMaskBitmap) ) ;
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m_hMaskBitmap = NULL ;
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}
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#endif
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if (m_bitmapMask)
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{
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delete m_bitmapMask;
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m_bitmapMask = NULL;
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}
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}
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wxBitmapRefData::~wxBitmapRefData()
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{
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Free() ;
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}
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bool wxBitmap::CopyFromIcon(const wxIcon& icon)
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{
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int w = icon.GetWidth() ;
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int h = icon.GetHeight() ;
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Create( icon.GetWidth() , icon.GetHeight() ) ;
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if ( w == h && w == 32 )
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{
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IconFamilyHandle iconFamily = NULL ;
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Handle imagehandle = NewHandle(0) ;
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Handle maskhandle = NewHandle(0) ;
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OSStatus err = ( IconRefToIconFamily( MAC_WXHICON(icon.GetHICON()) , kSelectorLarge32Bit | kSelectorLarge8BitMask , &iconFamily ) ) ;
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err =( GetIconFamilyData( iconFamily , kLarge32BitData , imagehandle ) ) ;
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err =( GetIconFamilyData( iconFamily , kLarge8BitMask , maskhandle ) ) ;
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wxASSERT( GetHandleSize( imagehandle ) == w * 4 * h ) ;
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wxASSERT( GetHandleSize( maskhandle ) == w * h ) ;
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UseAlpha() ;
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unsigned char *source = (unsigned char *) *imagehandle ;
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unsigned char *sourcemask = (unsigned char *) *maskhandle ;
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unsigned char* destination = (unsigned char*) BeginRawAccess() ;
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for ( int y = 0 ; y < h ; ++y )
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{
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for ( int x = 0 ; x < w ; ++x )
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{
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*destination++ = *sourcemask++ ;
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source++ ;
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*destination++ = *source++ ;
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*destination++ = *source++ ;
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*destination++ = *source++ ;
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}
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}
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EndRawAccess() ;
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DisposeHandle( imagehandle ) ;
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DisposeHandle( maskhandle ) ;
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}
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else
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{
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wxMemoryDC dc ;
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dc.SelectObject( *this ) ;
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dc.DrawIcon( icon , 0 , 0 ) ;
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dc.SelectObject( wxNullBitmap ) ;
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}
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return true;
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}
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wxBitmap::wxBitmap()
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{
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}
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wxBitmap::~wxBitmap()
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{
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}
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wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
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{
|
|
m_refData = new wxBitmapRefData( the_width , the_height , no_bits ) ;
|
|
|
|
if ( no_bits == 1 )
|
|
{
|
|
int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
|
|
if ( the_width % (sizeof(unsigned char) * 8) ) {
|
|
linesize += sizeof(unsigned char);
|
|
}
|
|
unsigned char* linestart = (unsigned char*) bits ;
|
|
unsigned char* destination = (unsigned char*) BeginRawAccess() ;
|
|
for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
|
|
{
|
|
for ( int x = 0 ; x < the_width ; ++x )
|
|
{
|
|
int index = x / 8 ;
|
|
int bit = x % 8 ;
|
|
int mask = 1 << bit ;
|
|
if ( linestart[index] & mask )
|
|
{
|
|
*destination++ = 0xFF ;
|
|
*destination++ = 0 ;
|
|
*destination++ = 0 ;
|
|
*destination++ = 0 ;
|
|
}
|
|
else
|
|
{
|
|
*destination++ = 0xFF ;
|
|
*destination++ = 0xFF ;
|
|
*destination++ = 0xFF ;
|
|
*destination++ = 0xFF ;
|
|
}
|
|
}
|
|
}
|
|
EndRawAccess() ;
|
|
}
|
|
else
|
|
{
|
|
wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
|
|
}
|
|
}
|
|
|
|
wxBitmap::wxBitmap(int w, int h, int d)
|
|
{
|
|
(void)Create(w, h, d);
|
|
}
|
|
|
|
wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth)
|
|
{
|
|
(void) Create(data, type, width, height, depth);
|
|
}
|
|
|
|
wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
|
|
{
|
|
LoadFile(filename, type);
|
|
}
|
|
|
|
wxBitmap::wxBitmap(const char **bits)
|
|
{
|
|
(void) CreateFromXpm(bits);
|
|
}
|
|
|
|
wxBitmap::wxBitmap(char **bits)
|
|
{
|
|
(void) CreateFromXpm((const char **)bits);
|
|
}
|
|
|
|
void* wxBitmap::GetRawAccess() const
|
|
{
|
|
wxCHECK_MSG( Ok() , NULL , wxT("invalid bitmap") ) ;
|
|
return M_BITMAPDATA->GetRawAccess() ;
|
|
}
|
|
|
|
void* wxBitmap::BeginRawAccess()
|
|
{
|
|
wxCHECK_MSG( Ok() , NULL , wxT("invalid bitmap") ) ;
|
|
return M_BITMAPDATA->BeginRawAccess() ;
|
|
}
|
|
|
|
void wxBitmap::EndRawAccess()
|
|
{
|
|
wxCHECK_RET( Ok() , wxT("invalid bitmap") ) ;
|
|
M_BITMAPDATA->EndRawAccess() ;
|
|
}
|
|
|
|
bool wxBitmap::CreateFromXpm(const char **bits)
|
|
{
|
|
wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
|
|
wxXPMDecoder decoder;
|
|
wxImage img = decoder.ReadData(bits);
|
|
wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") )
|
|
*this = wxBitmap(img);
|
|
return TRUE;
|
|
}
|
|
|
|
#if wxMAC_USE_CORE_GRAPHICS
|
|
WXCGIMAGEREF wxBitmap::CGImageCreate() const
|
|
{
|
|
wxCHECK_MSG( Ok(), NULL , wxT("invalid bitmap") ) ;
|
|
return M_BITMAPDATA->CGImageCreate() ;
|
|
}
|
|
#endif
|
|
|
|
wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
|
|
{
|
|
wxCHECK_MSG( Ok() &&
|
|
(rect.x >= 0) && (rect.y >= 0) &&
|
|
(rect.x+rect.width <= GetWidth()) &&
|
|
(rect.y+rect.height <= GetHeight()),
|
|
wxNullBitmap, wxT("invalid bitmap or bitmap region") );
|
|
|
|
|
|
wxBitmap ret( rect.width, rect.height, GetDepth() );
|
|
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
|
|
|
|
|
|
int sourcewidth = GetWidth() ;
|
|
int destwidth = rect.width ;
|
|
int destheight = rect.height ;
|
|
{
|
|
unsigned char * sourcedata = (unsigned char*) GetRawAccess() ;
|
|
unsigned char * destdata = (unsigned char*) ret.BeginRawAccess() ;
|
|
int sourcelinesize = sourcewidth * 4 ;
|
|
int destlinesize = destwidth * 4 ;
|
|
unsigned char *source = sourcedata + rect.x * 4 + rect.y * sourcelinesize ;
|
|
unsigned char *dest = destdata ;
|
|
for(int yy = 0; yy < destheight; ++yy, source += sourcelinesize , dest += destlinesize)
|
|
{
|
|
memcpy( dest , source , destlinesize ) ;
|
|
}
|
|
}
|
|
ret.EndRawAccess() ;
|
|
|
|
if ( M_BITMAPDATA->m_bitmapMask )
|
|
{
|
|
wxMemoryBuffer maskbuf ;
|
|
int rowBytes = ( destwidth + 3 ) & 0xFFFFFFC ;
|
|
size_t maskbufsize = rowBytes * destheight ;
|
|
unsigned char * destdata = (unsigned char * ) maskbuf.GetWriteBuf( maskbufsize ) ;
|
|
|
|
int sourcelinesize = M_BITMAPDATA->m_bitmapMask->GetBytesPerRow() ;
|
|
int destlinesize = rowBytes ;
|
|
unsigned char *source = (unsigned char *) M_BITMAPDATA->m_bitmapMask->GetRawAccess() ;
|
|
source += rect.x + rect.y * sourcelinesize ;
|
|
unsigned char *dest = destdata ;
|
|
|
|
for(int yy = 0; yy < destheight; ++yy, source += sourcelinesize , dest += destlinesize)
|
|
{
|
|
memcpy( dest , source , destlinesize ) ;
|
|
}
|
|
maskbuf.UngetWriteBuf( maskbufsize ) ;
|
|
ret.SetMask( new wxMask( maskbuf , destwidth , destheight , rowBytes ) ) ;
|
|
}
|
|
else if ( HasAlpha() )
|
|
ret.UseAlpha() ;
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool wxBitmap::Create(int w, int h, int d)
|
|
{
|
|
UnRef();
|
|
|
|
if ( d < 0 )
|
|
d = wxDisplayDepth() ;
|
|
|
|
m_refData = new wxBitmapRefData( w , h , d );
|
|
|
|
return M_BITMAPDATA->Ok() ;
|
|
}
|
|
|
|
bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type)
|
|
{
|
|
UnRef();
|
|
|
|
wxBitmapHandler *handler = FindHandler(type);
|
|
|
|
if ( handler )
|
|
{
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
return handler->LoadFile(this, filename, type, -1, -1);
|
|
}
|
|
else
|
|
{
|
|
wxImage loadimage(filename, type);
|
|
if (loadimage.Ok()) {
|
|
*this = loadimage;
|
|
return true;
|
|
}
|
|
}
|
|
wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
|
|
return false;
|
|
}
|
|
|
|
bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth)
|
|
{
|
|
UnRef();
|
|
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
wxBitmapHandler *handler = FindHandler(type);
|
|
|
|
if ( handler == NULL ) {
|
|
wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
return handler->Create(this, data, type, width, height, depth);
|
|
}
|
|
|
|
wxBitmap::wxBitmap(const wxImage& image, int depth)
|
|
{
|
|
wxCHECK_RET( image.Ok(), wxT("invalid image") )
|
|
|
|
// width and height of the device-dependent bitmap
|
|
int width = image.GetWidth();
|
|
int height = image.GetHeight();
|
|
|
|
m_refData = new wxBitmapRefData( width , height , depth ) ;;
|
|
|
|
// Create picture
|
|
|
|
bool hasAlpha = false ;
|
|
|
|
if ( image.HasMask() )
|
|
{
|
|
// takes precedence, don't mix with alpha info
|
|
}
|
|
else
|
|
{
|
|
hasAlpha = image.HasAlpha() ;
|
|
}
|
|
|
|
if ( hasAlpha )
|
|
UseAlpha() ;
|
|
|
|
unsigned char* destination = (unsigned char*) BeginRawAccess() ;
|
|
|
|
register unsigned char* data = image.GetData();
|
|
const unsigned char *alpha = hasAlpha ? image.GetAlpha() : NULL ;
|
|
for (int y = 0; y < height; y++)
|
|
{
|
|
for (int x = 0; x < width; x++)
|
|
{
|
|
if ( hasAlpha )
|
|
{
|
|
const unsigned char a = *alpha++;
|
|
*destination++ = a ;
|
|
#if wxMAC_USE_PREMULTIPLIED_ALPHA
|
|
*destination++ = ((*data++) * a + 127 ) / 255 ;
|
|
*destination++ = ((*data++) * a + 127 ) / 255 ;
|
|
*destination++ = ((*data++) * a + 127 ) / 255 ;
|
|
#else
|
|
*destination++ = *data++ ;
|
|
*destination++ = *data++ ;
|
|
*destination++ = *data++ ;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
*destination++ = 0xFF ;
|
|
*destination++ = *data++ ;
|
|
*destination++ = *data++ ;
|
|
*destination++ = *data++ ;
|
|
}
|
|
}
|
|
}
|
|
EndRawAccess() ;
|
|
if ( image.HasMask() )
|
|
{
|
|
SetMask( new wxMask( *this , wxColour( image.GetMaskRed() , image.GetMaskGreen() , image.GetMaskBlue() ) ) ) ;
|
|
}
|
|
}
|
|
|
|
wxImage wxBitmap::ConvertToImage() const
|
|
{
|
|
wxImage image;
|
|
|
|
wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
|
|
|
|
// create an wxImage object
|
|
int width = GetWidth();
|
|
int height = GetHeight();
|
|
image.Create( width, height );
|
|
|
|
unsigned char *data = image.GetData();
|
|
wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
|
|
|
|
unsigned char* source = (unsigned char*) GetRawAccess() ;
|
|
|
|
bool hasAlpha = false ;
|
|
bool hasMask = false ;
|
|
unsigned char *alpha = NULL ;
|
|
unsigned char *mask = NULL ;
|
|
if ( HasAlpha() )
|
|
{
|
|
hasAlpha = true ;
|
|
}
|
|
|
|
if ( GetMask() )
|
|
{
|
|
hasMask = true ;
|
|
mask = (unsigned char*) GetMask()->GetRawAccess() ;
|
|
}
|
|
|
|
if ( hasAlpha )
|
|
{
|
|
image.SetAlpha() ;
|
|
alpha = image.GetAlpha() ;
|
|
}
|
|
int index = 0;
|
|
|
|
// The following masking algorithm is the same as well in msw/gtk:
|
|
// the colour used as transparent one in wxImage and the one it is
|
|
// replaced with when it really occurs in the bitmap
|
|
static const int MASK_RED = 1;
|
|
static const int MASK_GREEN = 2;
|
|
static const int MASK_BLUE = 3;
|
|
static const int MASK_BLUE_REPLACEMENT = 2;
|
|
|
|
for (int yy = 0; yy < height; yy++)
|
|
{
|
|
for (int xx = 0; xx < width; xx++)
|
|
{
|
|
long color = *((long*) source) ;
|
|
unsigned char a = ((color&0xFF000000) >> 24) ;
|
|
unsigned char r = ((color&0x00FF0000) >> 16) ;
|
|
unsigned char g = ((color&0x0000FF00) >> 8) ;
|
|
unsigned char b = (color&0x000000FF);
|
|
if ( hasMask )
|
|
{
|
|
if ( *mask++ == 0 )
|
|
{
|
|
if ( r == MASK_RED && g == MASK_GREEN && b == MASK_BLUE )
|
|
b = MASK_BLUE_REPLACEMENT ;
|
|
}
|
|
else
|
|
{
|
|
r = MASK_RED ;
|
|
g = MASK_GREEN ;
|
|
b = MASK_BLUE ;
|
|
}
|
|
}
|
|
else if ( hasAlpha )
|
|
*alpha++ = a ;
|
|
|
|
data[index ] = r ;
|
|
data[index + 1] = g ;
|
|
data[index + 2] = b ;
|
|
index += 3;
|
|
source += 4 ;
|
|
}
|
|
}
|
|
if ( hasMask )
|
|
image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE );
|
|
return image;
|
|
}
|
|
|
|
|
|
bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type,
|
|
const wxPalette *palette) const
|
|
{
|
|
wxBitmapHandler *handler = FindHandler(type);
|
|
|
|
if ( handler )
|
|
{
|
|
return handler->SaveFile(this, filename, type, palette);
|
|
}
|
|
else
|
|
{
|
|
wxImage image = ConvertToImage();
|
|
|
|
return image.SaveFile(filename, type);
|
|
}
|
|
|
|
wxLogWarning(wxT("no bitmap handler for type %d defined."), type);
|
|
return false;
|
|
}
|
|
|
|
bool wxBitmap::Ok() const
|
|
{
|
|
return (M_BITMAPDATA && M_BITMAPDATA->Ok());
|
|
}
|
|
|
|
int wxBitmap::GetHeight() const
|
|
{
|
|
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
|
|
|
|
return M_BITMAPDATA->GetHeight();
|
|
}
|
|
|
|
int wxBitmap::GetWidth() const
|
|
{
|
|
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
|
|
|
|
return M_BITMAPDATA->GetWidth() ;
|
|
}
|
|
|
|
int wxBitmap::GetDepth() const
|
|
{
|
|
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
|
|
|
|
return M_BITMAPDATA->GetDepth();
|
|
}
|
|
|
|
int wxBitmap::GetQuality() const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
wxMask *wxBitmap::GetMask() const
|
|
{
|
|
wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
|
|
|
|
return M_BITMAPDATA->m_bitmapMask;
|
|
}
|
|
|
|
bool wxBitmap::HasAlpha() const
|
|
{
|
|
wxCHECK_MSG( Ok(), false , wxT("invalid bitmap") );
|
|
|
|
return M_BITMAPDATA->HasAlpha() ;
|
|
}
|
|
|
|
void wxBitmap::SetWidth(int w)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
M_BITMAPDATA->SetWidth(w);
|
|
}
|
|
|
|
void wxBitmap::SetHeight(int h)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
M_BITMAPDATA->SetHeight(h);
|
|
}
|
|
|
|
void wxBitmap::SetDepth(int d)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
M_BITMAPDATA->SetDepth(d);
|
|
}
|
|
|
|
void wxBitmap::SetQuality(int WXUNUSED(quality))
|
|
{
|
|
}
|
|
|
|
void wxBitmap::SetOk(bool isOk)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
M_BITMAPDATA->SetOk(isOk);
|
|
}
|
|
|
|
#if wxUSE_PALETTE
|
|
wxPalette *wxBitmap::GetPalette() const
|
|
{
|
|
wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap GetPalette()") );
|
|
|
|
return &M_BITMAPDATA->m_bitmapPalette;
|
|
}
|
|
|
|
void wxBitmap::SetPalette(const wxPalette& palette)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
M_BITMAPDATA->m_bitmapPalette = palette ;
|
|
}
|
|
#endif // wxUSE_PALETTE
|
|
|
|
void wxBitmap::SetMask(wxMask *mask)
|
|
{
|
|
if (!M_BITMAPDATA)
|
|
m_refData = new wxBitmapRefData;
|
|
|
|
// Remove existing mask if there is one.
|
|
delete M_BITMAPDATA->m_bitmapMask;
|
|
|
|
M_BITMAPDATA->m_bitmapMask = mask ;
|
|
}
|
|
|
|
#if !wxMAC_USE_CORE_GRAPHICS
|
|
WXHBITMAP wxBitmap::GetHBITMAP(WXHBITMAP* mask) const
|
|
{
|
|
return WXHBITMAP(M_BITMAPDATA->GetHBITMAP((GWorldPtr*)mask));
|
|
}
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxMask
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxMask::wxMask()
|
|
{
|
|
Init() ;
|
|
}
|
|
|
|
// Construct a mask from a bitmap and a colour indicating
|
|
// the transparent area
|
|
wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
|
|
{
|
|
Init() ;
|
|
Create(bitmap, colour);
|
|
}
|
|
|
|
// Construct a mask from a mono bitmap (copies the bitmap).
|
|
wxMask::wxMask(const wxBitmap& bitmap)
|
|
{
|
|
Init() ;
|
|
Create(bitmap);
|
|
}
|
|
|
|
// Construct a mask from a mono bitmap (copies the bitmap).
|
|
wxMask::wxMask(const wxMemoryBuffer& data, int width , int height , int bytesPerRow )
|
|
{
|
|
Init() ;
|
|
Create(data, width , height , bytesPerRow );
|
|
}
|
|
|
|
wxMask::~wxMask()
|
|
{
|
|
#if !wxMAC_USE_CORE_GRAPHICS
|
|
if ( m_maskBitmap )
|
|
{
|
|
DisposeGWorld( (GWorldPtr) m_maskBitmap ) ;
|
|
m_maskBitmap = NULL ;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void wxMask::Init()
|
|
{
|
|
m_width = m_height = m_bytesPerRow = 0 ;
|
|
#if !wxMAC_USE_CORE_GRAPHICS
|
|
m_maskBitmap = NULL ;
|
|
#endif
|
|
|
|
}
|
|
|
|
void *wxMask::GetRawAccess() const
|
|
{
|
|
return m_memBuf.GetData() ;
|
|
}
|
|
|
|
void wxMask::RealizeNative()
|
|
{
|
|
#if !wxMAC_USE_CORE_GRAPHICS
|
|
if ( m_maskBitmap )
|
|
{
|
|
DisposeGWorld( (GWorldPtr) m_maskBitmap ) ;
|
|
m_maskBitmap = NULL ;
|
|
}
|
|
Rect rect = { 0 , 0 , m_height , m_width } ;
|
|
verify_noerr( NewGWorldFromPtr( (GWorldPtr*) &m_maskBitmap , k8IndexedGrayPixelFormat , &rect , NULL , NULL , 0 ,
|
|
(char*) m_memBuf.GetData() , m_bytesPerRow ) ) ;
|
|
#endif
|
|
}
|
|
|
|
// Create a mask from a mono bitmap (copies the bitmap).
|
|
bool wxMask::Create(const wxMemoryBuffer& data,int width , int height , int bytesPerRow)
|
|
{
|
|
m_memBuf = data ;
|
|
m_width = width ;
|
|
m_height = height ;
|
|
m_bytesPerRow = bytesPerRow ;
|
|
wxASSERT( data.GetDataLen() == (size_t)(height * bytesPerRow) ) ;
|
|
RealizeNative() ;
|
|
return true ;
|
|
}
|
|
|
|
// Create a mask from a mono bitmap (copies the bitmap).
|
|
bool wxMask::Create(const wxBitmap& bitmap)
|
|
{
|
|
m_width = bitmap.GetWidth() ;
|
|
m_height = bitmap.GetHeight() ;
|
|
m_bytesPerRow = ( m_width + 3 ) & 0xFFFFFFC ;
|
|
size_t size = m_bytesPerRow * m_height ;
|
|
unsigned char * destdatabase = (unsigned char*) m_memBuf.GetWriteBuf( size ) ;
|
|
memset( destdatabase , 0 , size ) ;
|
|
unsigned char * srcdata = (unsigned char*) bitmap.GetRawAccess() ;
|
|
for ( int y = 0 ; y < m_height ; ++y , destdatabase += m_bytesPerRow )
|
|
{
|
|
unsigned char *destdata= destdatabase ;
|
|
for( int x = 0 ; x < m_width ; ++x )
|
|
{
|
|
srcdata++ ;
|
|
unsigned char r = *srcdata++ ;
|
|
unsigned char g = *srcdata++ ;
|
|
unsigned char b = *srcdata++ ;
|
|
if ( ( r + g + b ) > 0x10 )
|
|
*destdata++ = 0x00 ;
|
|
else
|
|
*destdata++ = 0xFF ;
|
|
}
|
|
}
|
|
m_memBuf.UngetWriteBuf( size ) ;
|
|
RealizeNative() ;
|
|
return TRUE;
|
|
}
|
|
|
|
// Create a mask from a bitmap and a colour indicating
|
|
// the transparent area
|
|
bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
|
|
{
|
|
m_width = bitmap.GetWidth() ;
|
|
m_height = bitmap.GetHeight() ;
|
|
m_bytesPerRow = ( m_width + 3 ) & 0xFFFFFFC ;
|
|
size_t size = m_bytesPerRow * m_height ;
|
|
|
|
unsigned char * destdatabase = (unsigned char*) m_memBuf.GetWriteBuf( size ) ;
|
|
memset( destdatabase , 0 , size ) ;
|
|
unsigned char * srcdata = (unsigned char*) bitmap.GetRawAccess() ;
|
|
for ( int y = 0 ; y < m_height ; ++y , destdatabase += m_bytesPerRow)
|
|
{
|
|
unsigned char *destdata= destdatabase ;
|
|
for( int x = 0 ; x < m_width ; ++x )
|
|
{
|
|
srcdata++ ;
|
|
unsigned char r = *srcdata++ ;
|
|
unsigned char g = *srcdata++ ;
|
|
unsigned char b = *srcdata++ ;
|
|
if ( colour == wxColour( r , g , b) )
|
|
*destdata++ = 0x00 ;
|
|
else
|
|
*destdata++ = 0xFF ;
|
|
}
|
|
}
|
|
m_memBuf.UngetWriteBuf( size ) ;
|
|
RealizeNative() ;
|
|
return TRUE;
|
|
}
|
|
|
|
#if !wxMAC_USE_CORE_GRAPHICS
|
|
WXHBITMAP wxMask::GetHBITMAP() const
|
|
{
|
|
return m_maskBitmap ;
|
|
}
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxBitmapHandler
|
|
// ----------------------------------------------------------------------------
|
|
|
|
wxBitmapHandler::~wxBitmapHandler()
|
|
{
|
|
}
|
|
|
|
bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
|
|
int desiredWidth, int desiredHeight)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
bool wxBitmapHandler::SaveFile(const wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Standard Handlers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
|
|
{
|
|
DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
|
|
public:
|
|
inline wxPICTResourceHandler()
|
|
{
|
|
SetName(wxT("Macintosh Pict resource"));
|
|
SetExtension(wxEmptyString);
|
|
SetType(wxBITMAP_TYPE_PICT_RESOURCE);
|
|
};
|
|
|
|
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
|
|
int desiredWidth, int desiredHeight);
|
|
};
|
|
IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
|
|
|
|
bool wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
|
|
int desiredWidth, int desiredHeight)
|
|
{
|
|
Str255 theName ;
|
|
wxMacStringToPascal( name , theName ) ;
|
|
|
|
PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
|
|
if ( thePict )
|
|
{
|
|
wxMetafile mf ;
|
|
mf.SetHMETAFILE((WXHMETAFILE) thePict ) ;
|
|
bitmap->Create( mf.GetWidth() , mf.GetHeight() ) ;
|
|
wxMemoryDC dc ;
|
|
dc.SelectObject( *bitmap ) ;
|
|
mf.Play( &dc ) ;
|
|
dc.SelectObject( wxNullBitmap ) ;
|
|
return TRUE ;
|
|
}
|
|
return FALSE ;
|
|
}
|
|
|
|
void wxBitmap::InitStandardHandlers()
|
|
{
|
|
AddHandler(new wxPICTResourceHandler) ;
|
|
AddHandler(new wxICONResourceHandler) ;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// raw bitmap access support
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
|
|
{
|
|
if ( !Ok() )
|
|
{
|
|
// no bitmap, no data (raw or otherwise)
|
|
return NULL;
|
|
}
|
|
|
|
data.m_width = GetWidth() ;
|
|
data.m_height = GetHeight() ;
|
|
data.m_stride = GetWidth() * 4 ;
|
|
return GetRawAccess() ;
|
|
}
|
|
|
|
void wxBitmap::UngetRawData(wxPixelDataBase& dataBase)
|
|
{
|
|
if ( !Ok() )
|
|
return;
|
|
|
|
// TODO : if we have some information about the API we should check
|
|
// this code looks strange...
|
|
|
|
if ( M_BITMAPDATA->HasAlpha() )
|
|
{
|
|
wxAlphaPixelData& data = (wxAlphaPixelData&)dataBase;
|
|
|
|
int w = data.GetWidth(),
|
|
h = data.GetHeight();
|
|
|
|
wxBitmap bmpMask(GetWidth(), GetHeight(), 32);
|
|
wxAlphaPixelData dataMask(bmpMask, data.GetOrigin(), wxSize(w, h));
|
|
wxAlphaPixelData::Iterator pMask(dataMask),
|
|
p(data);
|
|
for ( int y = 0; y < h; y++ )
|
|
{
|
|
wxAlphaPixelData::Iterator rowStartMask = pMask,
|
|
rowStart = p;
|
|
|
|
for ( int x = 0; x < w; x++ )
|
|
{
|
|
const wxAlphaPixelData::Iterator::ChannelType
|
|
alpha = p.Alpha();
|
|
|
|
pMask.Red() = alpha;
|
|
pMask.Green() = alpha;
|
|
pMask.Blue() = alpha;
|
|
|
|
++p;
|
|
++pMask;
|
|
}
|
|
|
|
p = rowStart;
|
|
p.OffsetY(data, 1);
|
|
|
|
pMask = rowStartMask;
|
|
pMask.OffsetY(dataMask, 1);
|
|
}
|
|
|
|
SetMask(new wxMask(bmpMask));
|
|
}
|
|
}
|
|
|
|
void wxBitmap::UseAlpha()
|
|
{
|
|
// remember that we are using alpha channel, we'll need to create a proper
|
|
// mask in UngetRawData()
|
|
M_BITMAPDATA->UseAlpha( true );
|
|
}
|