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e1ef078741
The idea then would be to have the following behaviour (when specifying the following options in the kernel command line): /DEBUGPORT=COMi --> load KDCOM.DLL and use COMi port (i == 1,2,3,4) if possible. /DEBUGPORT=FOO --> load KDFOO.DLL (useful for KDUSB.DLL, KD1394.DLL, KDBAZIS.DLL for VirtualKD, etc...) /DEBUGPORT=ROSDBG:[COMi|SCREEN|FILE|GDB|...] --> load KDROSDBG.DLL which contains the ROS kernel debugger, and use COMi or SCREEN or... as output port. svn path=/branches/kd++/; revision=58883
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Display Control Panel
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* FILE: dll/cpl/desk/dibitmap.c
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* PURPOSE: DIB loading
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*
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* PROGRAMMERS: Trevor McCort (lycan359@gmail.com)
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*/
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#include "desk.h"
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PDIBITMAP
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DibLoadImage(LPTSTR lpFilename)
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{
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BOOL bSuccess;
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DWORD dwFileSize, dwHighSize, dwBytesRead;
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HANDLE hFile;
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PDIBITMAP lpBitmap;
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hFile = CreateFile(lpFilename,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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FILE_FLAG_SEQUENTIAL_SCAN,
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NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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return NULL;
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dwFileSize = GetFileSize(hFile, &dwHighSize);
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if (dwHighSize)
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{
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CloseHandle(hFile);
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return NULL;
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}
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lpBitmap = HeapAlloc(GetProcessHeap(), 0, sizeof(DIBITMAP));
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if (lpBitmap == NULL)
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{
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CloseHandle(hFile);
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return NULL;
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}
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lpBitmap->header = HeapAlloc(GetProcessHeap(), 0, dwFileSize);
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if (lpBitmap->header == NULL)
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{
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HeapFree(GetProcessHeap(), 0, lpBitmap);
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CloseHandle(hFile);
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return NULL;
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}
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bSuccess = ReadFile(hFile, lpBitmap->header, dwFileSize, &dwBytesRead, NULL);
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CloseHandle(hFile);
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if (!bSuccess ||
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(dwBytesRead != dwFileSize) ||
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(lpBitmap->header->bfType != * (WORD *) "BM") ||
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(lpBitmap->header->bfSize != dwFileSize))
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{
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HeapFree(GetProcessHeap(), 0, lpBitmap->header);
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HeapFree(GetProcessHeap(), 0, lpBitmap);
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return NULL;
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}
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lpBitmap->info = (BITMAPINFO *)(lpBitmap->header + 1);
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lpBitmap->bits = (BYTE *)lpBitmap->header + lpBitmap->header->bfOffBits;
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/* Get the DIB width and height */
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if (lpBitmap->info->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
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{
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lpBitmap->width = ((BITMAPCOREHEADER *)lpBitmap->info)->bcWidth;
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lpBitmap->height = ((BITMAPCOREHEADER *)lpBitmap->info)->bcHeight;
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}
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else
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{
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lpBitmap->width = lpBitmap->info->bmiHeader.biWidth;
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lpBitmap->height = abs(lpBitmap->info->bmiHeader.biHeight);
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}
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return lpBitmap;
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}
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VOID
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DibFreeImage(PDIBITMAP lpBitmap)
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{
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if (lpBitmap == NULL)
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return;
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/* Free the header */
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if (lpBitmap->header != NULL)
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HeapFree(GetProcessHeap(), 0, lpBitmap->header);
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/* Free the bitmap structure */
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if (lpBitmap != NULL)
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HeapFree(GetProcessHeap(), 0, lpBitmap);
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}
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