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DIB_GetBitmapInfo didn't recognize BITMAPV4/5HEADER.

This commit is contained in:
Andreas Mohr 2001-08-03 18:11:23 +00:00 committed by Alexandre Julliard
parent bb72c3d5d5
commit 1d8ef194e8
1 changed files with 40 additions and 3 deletions
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43
objects/dib.c
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@ -88,7 +88,8 @@ int DIB_BitmapInfoSize( const BITMAPINFO * info, WORD coloruse )
* DIB_GetBitmapInfo
*
* Get the info from a bitmap header.
* Return 1 for INFOHEADER, 0 for COREHEADER, -1 for error.
* Return 1 for INFOHEADER, 0 for COREHEADER,
* 4 for V4HEADER, 5 for V5HEADER, -1 for error.
*/
int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, DWORD *width,
int *height, WORD *bpp, WORD *compr )
@ -110,7 +111,25 @@ int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, DWORD *width,
*compr = 0;
return 0;
}
WARN("(%ld): wrong size for header\n", header->biSize );
if (header->biSize == sizeof(BITMAPV4HEADER))
{
BITMAPV4HEADER *v4hdr = (BITMAPV4HEADER *)header;
*width = v4hdr->bV4Width;
*height = v4hdr->bV4Height;
*bpp = v4hdr->bV4BitCount;
*compr = v4hdr->bV4Compression;
return 4;
}
if (header->biSize == sizeof(BITMAPV5HEADER))
{
BITMAPV5HEADER *v5hdr = (BITMAPV5HEADER *)header;
*width = v5hdr->bV5Width;
*height = v5hdr->bV5Height;
*bpp = v5hdr->bV5BitCount;
*compr = v5hdr->bV5Compression;
return 5;
}
ERR("(%ld): unknown/wrong size for header\n", header->biSize );
return -1;
}
@ -825,9 +844,27 @@ HBITMAP WINAPI CreateDIBitmap( HDC hdc, const BITMAPINFOHEADER *header,
}
else fColor = TRUE;
}
else if (data->bmiHeader.biSize == sizeof(BITMAPV4HEADER))
{ /* FIXME: correct ? */
RGBQUAD *rgb = data->bmiColors;
DWORD col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue );
/* Check if the first color of the colormap is black */
if ((col == RGB(0,0,0)))
{
rgb++;
col = RGB( rgb->rgbRed, rgb->rgbGreen, rgb->rgbBlue );
/* If the second color is white, create a monochrome bitmap */
fColor = (col != RGB(0xff,0xff,0xff));
}
/* Note : If the first color of the colormap is white
followed by black, we have to create a color bitmap.
If we don't the white will be displayed in black later on!*/
else fColor = TRUE;
}
else
{
WARN("(%ld): wrong size for data\n",
ERR("(%ld): wrong/unknown size for data\n",
data->bmiHeader.biSize );
return 0;
}