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/*************************************************************************
*
* This code is property of Serenity Systems Intl
* All rights reserverd.
*
************************************************************************/
#define INCL_WIN
#include <svpm.h>
#include "Os2Clipboard.hxx"
// same typedefs from win32 sdk
typedef unsigned short WORD;
typedef unsigned long DWORD;
#pragma pack(push, 1)
typedef struct {
PM_BYTE rgbBlue;
PM_BYTE rgbGreen;
PM_BYTE rgbRed;
PM_BYTE rgbReserved;
} RGBQUAD, *LPRGBQUAD;
typedef struct
{
WORD bfType;
DWORD bfSize;
WORD bfReserved1;
WORD bfReserved2;
DWORD bfOffBits;
} W32_BITMAPFILEHEADER, *PW32_BITMAPFILEHEADER;
typedef struct
{
DWORD biSize;
LONG biWidth;
LONG biHeight;
WORD biPlanes;
WORD biBitCount;
DWORD biCompression;
DWORD biSizeImage;
LONG biXPelsPerMeter;
LONG biYPelsPerMeter;
DWORD biClrUsed;
DWORD biClrImportant;
} W32_BITMAPINFOHEADER, *PW32_BITMAPINFOHEADER;
#pragma pack(pop)
// store screen bitcount
LONG lBitCountScreen;
/*
* Convert an OOo bitmap to an OS/2 bitmap handle
*
* An OOo bitmap is a BITMAPFILEHEADER structure followed by a Windows DIB
*
* OS/2 InfoHeader is a superset of Win32 InhoHeader, so we can just copy
* the win32 memory over the os2 memory and fix the cbFix field.
* colortable and bitmap data share the same format.
*
*/
HBITMAP OOoBmpToOS2Handle( Any &aAnyB)
{
// copy bitmap to clipboard
Sequence<sal_Int8> ByteStream;
aAnyB >>= ByteStream;
// get w32 file header data
PW32_BITMAPFILEHEADER pbfh = (PW32_BITMAPFILEHEADER)ByteStream.getArray();
// get w32 info header
PW32_BITMAPINFOHEADER pbih = (PW32_BITMAPINFOHEADER) (pbfh+1);
// create os2 infoheader2 (same fields of w32)
BITMAPINFOHEADER2 bih2;
memset( &bih2, 0, sizeof( bih2));
memcpy( &bih2, pbih, pbih->biSize);
bih2.cbFix = sizeof(bih2);
// Determine size of color table
int iNumColors, numbits=bih2.cPlanes * bih2.cBitCount;
if (numbits != 24)
iNumColors = bih2.cclrUsed ? bih2.cclrUsed : 2<<numbits;
else
iNumColors = bih2.cclrUsed;
int iColorTableSize = iNumColors*sizeof(RGB2);
// allocate bitmap info2 (header2+colortable)
PBITMAPINFO2 pbi2=(PBITMAPINFO2) malloc( sizeof(BITMAPINFOHEADER2)+iColorTableSize);
// setup header fields
memcpy( pbi2, &bih2, sizeof(BITMAPINFOHEADER2));
// copy color palette (follows pbih)
memcpy( &pbi2->argbColor[0], (pbih+1), iColorTableSize);
// get bitmap data
PBYTE pbPelData = (PBYTE)ByteStream.getArray() + pbfh->bfOffBits;
HPS hps = WinGetPS(HWND_DESKTOP);
HBITMAP hbm = GpiCreateBitmap( hps, &bih2, CBM_INIT, pbPelData, pbi2);
debug_printf( "OOoBmpToOS2Handle hbm %x\n", hbm);
WinReleasePS(hps);
// return handle
return hbm;
}
/*
* Convert an OS/2 bitmap handle to OOo bitmap
*
* First we need to copy the bitmap to a PS, then we can get bitmap data.
*
*/
int OS2HandleToOOoBmp( HBITMAP hbm, Sequence< sal_Int8 >* OOoDIBStream)
{
HAB hab = WinQueryAnchorBlock(HWND_DESKTOP);
HDC hdc;
SIZEL sizl;
HPS hps;
PM_BYTE* pbBuffer;
ULONG cbBuffer;
struct {
BITMAPINFOHEADER2 bmp2;
RGB2 argb2Color[0x100];
} bm;
if (!lBitCountScreen) {
HPS hps = WinGetPS(HWND_DESKTOP);
HDC hdc = GpiQueryDevice(hps);
DevQueryCaps(hdc, CAPS_COLOR_BITCOUNT, 1L, &lBitCountScreen);
WinReleasePS(hps);
}
// STEP 1: get OS/2 bitmap data and header
// get bitmap header
memset(&(bm.bmp2), 0, sizeof(bm.bmp2));
bm.bmp2.cbFix = 16;
GpiQueryBitmapInfoHeader(hbm, &bm.bmp2);
/* Data only actually stored in clipboard quality */
if ( lBitCountScreen < bm.bmp2.cBitCount )
bm.bmp2.cBitCount = lBitCountScreen;
if ( bm.bmp2.cBitCount == 16 )
bm.bmp2.cBitCount = 24;
if ( bm.bmp2.cPlanes != 1 ) {
return 0;
}
if ( (hdc = DevOpenDC(hab, OD_MEMORY, "*", 0L, (PDEVOPENDATA) NULL, (HDC) NULL)) == (HDC) NULL ) {
return 0;
}
sizl.cx = bm.bmp2.cx;
sizl.cy = bm.bmp2.cy;
if ( (hps = GpiCreatePS(hab, hdc, &sizl, PU_PELS | GPIF_DEFAULT | GPIT_MICRO | GPIA_ASSOC)) == (HPS) NULL ) {
DevCloseDC(hdc);
return 0;
}
// copy bitmap to hps
GpiSetBitmap(hps, hbm);
// buffer lengths
cbBuffer = (((bm.bmp2.cBitCount * bm.bmp2.cx) + 31) / 32) * 4 * bm.bmp2.cy * bm.bmp2.cPlanes;
pbBuffer = (PM_BYTE*) malloc( cbBuffer);
// now get bitmap data
GpiQueryBitmapBits(hps, 0L, (LONG) bm.bmp2.cy, pbBuffer, (BITMAPINFO2*)&bm);
// free OS/2 resources
GpiSetBitmap(hps, (HBITMAP) NULL);
GpiDestroyPS(hps);
DevCloseDC(hdc);
// STEP 2: now convert to Win32 DIB
// Determine size of color table
int iNumColors, numbits=bm.bmp2.cPlanes * bm.bmp2.cBitCount;
if (numbits != 24)
iNumColors = bm.bmp2.cclrUsed ? bm.bmp2.cclrUsed : 2<<numbits;
else
iNumColors = bm.bmp2.cclrUsed;
int iColorTableSize = iNumColors*sizeof(RGBQUAD);
// reallocate data stream object size
OOoDIBStream->realloc( sizeof( W32_BITMAPFILEHEADER )
+ sizeof( W32_BITMAPINFOHEADER) + iColorTableSize + cbBuffer);
// fill w32 file header data
PW32_BITMAPFILEHEADER pbfh = (PW32_BITMAPFILEHEADER) OOoDIBStream->getArray();
memset( pbfh, 0, sizeof( W32_BITMAPFILEHEADER));
pbfh->bfType = 'MB';
pbfh->bfSize = sizeof( W32_BITMAPFILEHEADER )
+ sizeof( W32_BITMAPINFOHEADER) + iColorTableSize + cbBuffer;
pbfh->bfOffBits = sizeof( W32_BITMAPFILEHEADER) + sizeof( W32_BITMAPINFOHEADER) + iColorTableSize;
// fill w32 info header
PW32_BITMAPINFOHEADER pbih = (PW32_BITMAPINFOHEADER) (pbfh+1);
// copy header fields (only win32 ones) and fix size
memcpy( pbih, &bm.bmp2, sizeof(W32_BITMAPINFOHEADER));
pbih->biSize = sizeof(W32_BITMAPINFOHEADER);
// fill color palette (follows pbih)
memcpy( (pbih+1), &bm.argb2Color[0], iColorTableSize);
// fill bitmap data
memcpy( (char*) pbfh + pbfh->bfOffBits, pbBuffer, cbBuffer);
// done
free( pbBuffer);
return 1;
}
#ifdef TESTBMP
#include <io.h>
#include <fcntl.h>
#include <stdio.h>
int main( void)
{
HAB hAB = WinQueryAnchorBlock( HWND_DESKTOP );
// query clipboard data to get mimetype
if( WinOpenClipbrd( hAB ) )
{
ULONG handle = WinQueryClipbrdData( hAB, CF_BITMAP);
if (handle) {
Sequence< sal_Int8 > winDIBStream;
// convert to oustring and return it
if (OS2HandleToOOoBmp( handle, &winDIBStream) == 1) {
printf( "Conversion ok.\n");
int fd = open( "test.bmp", O_BINARY | O_CREAT | O_TRUNC | O_RDWR);
printf( "writing to fd %d\n", fd);
write( fd, winDIBStream.getArray(), winDIBStream.getLength());
close( fd);
} else
printf( "failed conversion.\n");
}
WinCloseClipbrd( hAB);
}
return 0;
}
#endif //TESTBMP
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