macrgbblt.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
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 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
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 * the file under the RealNetworks Community Source License Version 1.0 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
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#include "hxcom.h"
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxvsurf.h"
#include "colormap.h"

#include "macrgbblt.h"

CMacRGBBlt::CMacRGBBlt()
 :  CMacBlt()
 , m_GWorld(NULL)
 , m_Window(NULL)
{
}

CMacRGBBlt::~CMacRGBBlt()
{
    DestroySurface(0);
}

HX_RESULT CMacRGBBlt::CreateSurface(int cidIn, int& cidOut,
                                 int nWidth, int nHeight,
                                 int nFlags, HWND hWnd,
                                 int nCountIn, int& nCountOut)
{
#if defined (HELIX_FEATURE_CC_RGB32out)
    m_nCID = CID_RGB32;
#elif defined (HELIX_FEATURE_CC_RGB565out)
    m_nCID = CID_RGB565;
    nSize += 3 * sizeof(ULONG32);
#endif
    
    cidOut = m_nCID;
    
    m_Window = (WindowPtr)hWnd;

    // build a gworld and return OK!
    
    short depth = 32; // if CID_RGB32
    Rect r;
    r.left = 0;
    r.top = 0;
    r.right = nWidth;
    r.bottom = nHeight;
    
    ::NewGWorld( &m_GWorld, depth, &r, nil, nil, 0 );
    
    if (!m_GWorld) return HXR_FAIL;
    
    return HXR_OK;
}

HX_RESULT CMacRGBBlt::LockSurface(UCHAR** ppDestPtr,
                              LONG32* pnDestPitch,
                              int& cid,
                              REF(HXxSize) srcSize,
                              int nIndex)
{
    PixMapHandle theGWorldPixMap = ::GetPortPixMap( m_GWorld );
    ::LockPixels( theGWorldPixMap );
    
    *ppDestPtr = (UCHAR*) ::GetPixBaseAddr( theGWorldPixMap );
    *pnDestPitch = (**theGWorldPixMap).rowBytes & 0x3fff; // xxxbobclark lose the top two bits.

    cid = CID_RGB32;

    return HXR_OK;
}

HX_RESULT CMacRGBBlt::FillSurface(int cidIn,
                               UCHAR* pSrcBuffer,
                               HXxSize* pSrcSize,
                               HXxRect* prSrcRect,
                               UCHAR* pDstBuffer,
                               LONG32 nDstPitch,
                               HXxRect* prDestRect)
{
    
    return HXR_NOTIMPL;
}

HX_RESULT CMacRGBBlt::UnlockSurface(UCHAR* pSurfPtr, int nIndex)
{
    PixMapHandle theGWorldPixMap = ::GetPortPixMap( m_GWorld );
    ::UnlockPixels( theGWorldPixMap );
    return HXR_OK;
}

HX_RESULT CMacRGBBlt::RenderSurface(HXxSize* pSrcSize,
                                 HXxRect* prSrcRect,
                                 HXxRect* prDestRect,
                                 int nIndex)
{
    // xxxbobclark so is the src rect gonna be based on 0,0 like we assumed
    // when we created the gworld???
    
    GrafPtr savePort;
    ::GetPort( &savePort );
    GrafPtr theWindowPort = ::GetWindowPort( m_Window );
    ::SetPort( theWindowPort );
    
    PixMapHandle theGWorldPixMap = ::GetPortPixMap( m_GWorld );
    
    // convert HXxRect to OS specific Rect. (HXxRect's fields are long, Rect's fields are short)
    
    Rect srcR, dstR;
    
    srcR.left = prSrcRect->left;
    srcR.top = prSrcRect->top;
    srcR.right = prSrcRect->right;
    srcR.bottom = prSrcRect->bottom;
    
    dstR.left = prDestRect->left;
    dstR.top = prDestRect->top;
    dstR.right = prDestRect->right;
    dstR.bottom = prDestRect->bottom;
    
    ::CopyBits( (BitMap*)*theGWorldPixMap, ::GetPortBitMapForCopyBits( theWindowPort ),
		&srcR, &dstR, srcCopy, NULL );
    
    ::QDFlushPortBuffer( theWindowPort, NULL );
    
    ::SetPort( savePort );
    
    return HXR_OK;
}

HX_RESULT CMacRGBBlt::DestroySurface(int cid)
{
    ::DisposeGWorld( m_GWorld );
    // destroy gworld
    
    return HXR_OK;
}