gdiblt.cpp
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上传日期:2007-06-06
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文件大小:10k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * 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.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxcom.h"
- #include "hxtypes.h"
- #include "hxwintyp.h"
- #ifndef _WINCE
- #include <ddraw.h>
- #endif
- #include "colormap.h"
- #if defined (HELIX_FEATURE_CC_RGB8out)
- #include "colorlib.h"
- #endif
- #include "gdiblt.h"
- CGDIBlt::CGDIBlt()
- : CWinBlt()
- , m_pGdiSurface(NULL)
- #if defined (HELIX_FEATURE_CC_RGB8out)
- , m_nSystemColors(0)
- #endif
- {
- memset(&m_gdiInfo, 0, sizeof(m_gdiInfo));
- }
- CGDIBlt::~CGDIBlt()
- {
- DestroySurface(0);
- }
- HX_RESULT CGDIBlt::CreateSurface(int cidIn, int& cidOut,
- int nWidth, int nHeight,
- int nFlags, HWND hWnd,
- int nCountIn, int& nCountOut)
- {
- HANDLE hMapping; // handle to mapped object
- HBITMAP hBitmap; // DIB section bitmap handle
- BYTE *pBase; // pointer to the actual image
- BITMAPINFO *pbmi;
- BYTE *pbmiBuf = NULL;
- int nSize = sizeof(BITMAPINFO);
- int nColors = 0;
- void *pPalette = NULL;
- HX_RESULT hr = HXR_OK;
- m_hWnd = hWnd;
- #if defined (HELIX_FEATURE_CC_RGB32out)
- m_nCID = CID_RGB32;
- #elif defined (HELIX_FEATURE_CC_RGB24out)
- m_nCID = CID_RGB24;
- #elif defined (HELIX_FEATURE_CC_RGB565out)
- m_nCID = CID_RGB565;
- nSize += 3 * sizeof(ULONG32);
- #elif defined (HELIX_FEATURE_CC_RGB555out)
- m_nCID = CID_RGB555;
- nSize += 3 * sizeof(ULONG32);
- #elif defined (HELIX_FEATURE_CC_RGB444out)
- m_nCID = CID_RGB444;
- nSize += 3 * sizeof(ULONG32);
- #elif defined (HELIX_FEATURE_CC_RGB8out)
- m_nCID = CID_RGB8;
- nColors = 256;
- nSize += nColors * sizeof(PALETTEENTRY);
- // get system palette first
- HDC hDC = GetDC(NULL);
- PALETTEENTRY SystemPalette[256];
-
- if (hDC)
- {
- m_nSystemColors = GetSystemPaletteEntries (hDC, 0, 256, SystemPalette);
- ReleaseDC (NULL,hDC);
- // generate palette index
- for (int i=0; i<m_nSystemColors; i++)
- {
- m_SystemPaletteIndices[i] = i;
- m_SystemPaletteRGB[i].rgbBlue = SystemPalette[i].peBlue;
- m_SystemPaletteRGB[i].rgbGreen = SystemPalette[i].peGreen;
- m_SystemPaletteRGB[i].rgbRed = SystemPalette[i].peRed;
- m_SystemPaletteRGB[i].rgbReserved = 0;
- }
- // update color converter's palette with the current system palette entries
- SetDestRGB8Palette(m_nSystemColors, (unsigned int *)SystemPalette, m_SystemPaletteIndices);
- pPalette = SystemPalette;
- }
- #endif
-
- cidOut = m_nCID;
- // allocate the buffer for the BITMAPINFO
- pbmiBuf = new BYTE[nSize];
- if (!pbmiBuf)
- return HXR_OUTOFMEMORY;
- memset(pbmiBuf, 0, nSize);
- pbmi = (BITMAPINFO*)pbmiBuf;
-
- // initialize the BITMAPINFO values
- MakeBitmap (pbmi, nSize, cidOut, nWidth, nHeight, (PALETTEENTRY*)pPalette, nColors);
- // allocate a new GDISURFACE structure to use:
- m_pGdiSurface = new GDISURFACE;
-
- if (m_pGdiSurface != NULL)
- {
- // create a file mapping object and map into our address space
- #ifndef WINCE
- hMapping = CreateFileMapping ((HANDLE) 0xFFFFFFFF,
- NULL, PAGE_READWRITE,
- (DWORD) 0,
- pbmi->bmiHeader.biSizeImage, NULL);
- if (hMapping != NULL)
- #else
- hMapping = NULL;
- #endif
- {
- // create a DIB section using given image format
- #ifdef WINCE
- pBase = NULL;
- #endif
- hBitmap = CreateDIBSection ((HDC) NULL, pbmi, DIB_RGB_COLORS, (VOID **) &pBase, hMapping, (DWORD) 0);
- if (hBitmap != NULL && pBase != NULL)
- {
- // initialise the GDISURFACE structure
- m_pGdiSurface->hBitMap = hBitmap;
- m_pGdiSurface->lpBase = pBase;
- m_pGdiSurface->nPitch = nWidth*pbmi->bmiHeader.biBitCount/8;
- m_pGdiSurface->nPitch = -((m_pGdiSurface->nPitch + 3) & ~3);
- // m_pGdiSurface->PaletteVersion = PALETTE_VERSION
- GetObject (hBitmap, sizeof (DIBSECTION), (VOID *)& (m_pGdiSurface->DibSection));
- }
- // close file mapping
- #ifndef WINCE
- CloseHandle (hMapping);
- #endif
- m_gdiInfo.hDC = GetDC(m_hWnd);
- m_gdiInfo.hMemoryDC = CreateCompatibleDC(m_gdiInfo.hDC);
- }
- }
- #ifndef WINCE
- else
- hr = HXR_FAIL;
- #endif
- HX_VECTOR_DELETE(pbmi);
- return hr;
- }
- HX_RESULT CGDIBlt::LockSurface(UCHAR** ppDestPtr,
- LONG32* pnDestPitch,
- int& cid,
- REF(HXxSize) dstSize,
- int nIndex)
- {
- *ppDestPtr = m_pGdiSurface->lpBase;
- *pnDestPitch = m_pGdiSurface->nPitch;
- cid = m_nCID;
- return HXR_OK;
- }
- HX_RESULT CGDIBlt::FillSurface(int cidIn,
- UCHAR* pSrcBuffer,
- HXxSize* pSrcSize,
- HXxRect* prSrcRect,
- UCHAR* pDstBuffer,
- LONG32 nDstPitch,
- HXxRect* prDestRect)
- {
-
- return HXR_NOTIMPL;
- }
- HX_RESULT CGDIBlt::UnlockSurface(UCHAR* pSurfPtr, int nIndex)
- {
- return HXR_OK;
- }
- HX_RESULT CGDIBlt::RenderSurface(HXxSize* pSrcSize,
- HXxRect* prSrcRect,
- HXxRect* prDestRect,
- int nIndex)
- {
- // Map to screen coordinates
- //POINT po = {0,0};
- //ClientToScreen(m_hWnd, &po);
-
- RECT rc;
- GetClientRect(m_hWnd, &rc);
-
- /*rc.left += po.x;
- rc.right += po.x;
- rc.top += po.y;
- rc.bottom += po.y;*/
-
- BOOL bResult;
- HBITMAP hOldBitmap;
-
- /* get sizes of source/destination rectangles: */
- LONG lTargetWidth = rc.right - rc.left;
- LONG lTargetHeight = rc.bottom - rc.top;
- LONG lSourceWidth = prSrcRect->right - prSrcRect->left;
- LONG lSourceHeight = prSrcRect->bottom - prSrcRect->top;
-
- /* select bitmap to blit: */
- hOldBitmap = (HBITMAP) SelectObject (m_gdiInfo.hMemoryDC, m_pGdiSurface->hBitMap);
-
- #if defined (HELIX_FEATURE_CC_RGB8out)
- SetDIBColorTable(m_gdiInfo.hMemoryDC, 0, m_nSystemColors, m_SystemPaletteRGB);
- #endif
- /* is the window the same size as the video: */
- if (lTargetWidth == lSourceWidth && lTargetHeight == lSourceHeight)
- {
- /* put the image straight into the window: */
- bResult = BitBlt (
- m_gdiInfo.hDC, /* target device HDC */
- rc.left, /* x sink position */
- rc.top, /* y sink position */
- lTargetWidth, /* destination width */
- lTargetHeight, /* destination height */
- m_gdiInfo.hMemoryDC, /* source device context */
- prSrcRect->left, /* x source position */
- prSrcRect->top, /* y source position */
- SRCCOPY); /* simple copy */
-
- } else {
- /* stretch the image when copying to the window: */
- bResult = StretchBlt (
- m_gdiInfo.hDC, /* target device HDC */
- rc.left, /* x sink position */
- rc.top, /* y sink position */
- lTargetWidth, /* destination width */
- lTargetHeight, /* destination height */
- m_gdiInfo.hMemoryDC, /* source device HDC */
- prSrcRect->left, /* x source position */
- prSrcRect->top, /* y source position */
- lSourceWidth, /* source width */
- lSourceHeight, /* source height */
- SRCCOPY); /* simple copy */
- }
- /* put the old bitmap back into the device context so we don't leak */
- SelectObject (m_gdiInfo.hMemoryDC, hOldBitmap);
-
- return HXR_OK;
- }
- HX_RESULT CGDIBlt::DestroySurface(int cid)
- {
- if (m_gdiInfo.hDC)
- ReleaseDC (m_hWnd, m_gdiInfo.hDC);
- if (m_gdiInfo.hMemoryDC)
- DeleteDC (m_gdiInfo.hMemoryDC);
-
- memset(&m_gdiInfo, 0, sizeof(m_gdiInfo));
- if (m_pGdiSurface)
- {
- DeleteObject (m_pGdiSurface->hBitMap);
- HX_DELETE(m_pGdiSurface);
- }
- return HXR_OK;
- }