reactos/lib/gdi32/objects/bitmap.c

   1 #include "precomp.h"
   2
   3 /*
   4  * @implemented
   5  */
   6 HBITMAP STDCALL
   7 CreateDIBSection(
   8    HDC hDC,
   9    CONST BITMAPINFO *BitmapInfo,
  10    UINT Usage,
  11    VOID **Bits,
  12    HANDLE hSection,
  13    DWORD dwOffset)
  14 {
  15    PBITMAPINFO pConvertedInfo;
  16    UINT ConvertedInfoSize;
  17    HBITMAP hBitmap = NULL;
  18
  19    pConvertedInfo = ConvertBitmapInfo(BitmapInfo, Usage,
  20                                       &ConvertedInfoSize, FALSE);
  21    if (pConvertedInfo)
  22    {
  23       hBitmap = NtGdiCreateDIBSection(hDC, hSection, dwOffset, pConvertedInfo, Usage, 0, 0, 0, Bits);
  24       if (BitmapInfo != pConvertedInfo)
  25          RtlFreeHeap(RtlGetProcessHeap(), 0, pConvertedInfo);
  26    }
  27
  28    return hBitmap;
  29 }
  30
  31 /*
  32  * @implemented
  33  */
  34 BOOL
  35 STDCALL
  36 BitBlt(HDC hdcDest,      /* handle to destination DC */
  37        int nXOriginDest, /* x-coord of destination upper-left corner */
  38        int nYOriginDest, /* y-coord of destination upper-left corner */
  39        int nWidthDest,   /* width of destination rectangle */
  40        int nHeightDest,  /* height of destination rectangle */
  41        HDC hdcSrc,       /* handle to source DC */
  42        int nXSrc,        /* x-coordinate of source upper-left corner */
  43        int nYSrc,        /* y-coordinate of source upper-left corner */
  44        DWORD dwRop)      /* raster operation code */
  45 {
  46     return NtGdiBitBlt(hdcDest,
  47                        nXOriginDest,
  48                        nYOriginDest,
  49                        nWidthDest,
  50                        nHeightDest,
  51                        hdcSrc,
  52                        nXSrc,
  53                        nYSrc,
  54                        dwRop,
  55                        0,
  56                        0);
  57 }
  58
  59 /*
  60  * @implemented
  61  */
  62 BOOL STDCALL
  63 StretchBlt(
  64    HDC hdcDest,      /* handle to destination DC */
  65    int nXOriginDest, /* x-coord of destination upper-left corner */
  66    int nYOriginDest, /* y-coord of destination upper-left corner */
  67    int nWidthDest,   /* width of destination rectangle */
  68    int nHeightDest,  /* height of destination rectangle */
  69    HDC hdcSrc,       /* handle to source DC */
  70    int nXOriginSrc,  /* x-coord of source upper-left corner */
  71    int nYOriginSrc,  /* y-coord of source upper-left corner */
  72    int nWidthSrc,    /* width of source rectangle */
  73    int nHeightSrc,   /* height of source rectangle */
  74    DWORD dwRop)      /* raster operation code */
  75
  76 {
  77    if ((nWidthDest != nWidthSrc) || (nHeightDest != nHeightSrc))
  78    {
  79       return NtGdiStretchBlt(hdcDest, nXOriginDest, nYOriginDest, nWidthDest,
  80                              nHeightDest, hdcSrc, nXOriginSrc, nYOriginSrc,
  81                              nWidthSrc, nHeightSrc, dwRop, 0);
  82    }
  83
  84    return NtGdiBitBlt(hdcDest, nXOriginDest, nYOriginDest, nWidthDest,
  85                       nHeightDest, hdcSrc, nXOriginSrc, nYOriginSrc, dwRop, 0, 0);
  86 }