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gdi32: Get rid of the DIB_GetBitmapInfo function.

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This commit is contained in:
Alexandre Julliard 2011-08-04 14:40:34 +02:00
parent 3d0f272a0d
commit e5ce32e54d
2 changed files with 19 additions and 61 deletions
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78
dlls/gdi32/dib.c
View File

@ -28,8 +28,7 @@
Most Windows API functions taking a BITMAPINFO* / BITMAPINFOHEADER* also
accept the old "core" structures, and so must WINE.
You can distinguish them by looking at the first member (bcSize/biSize),
or use the internal function DIB_GetBitmapInfo.
You can distinguish them by looking at the first member (bcSize/biSize).
* The palettes are stored in different formats:
@ -98,69 +97,34 @@ int bitmap_info_size( const BITMAPINFO * info, WORD coloruse )
}
}
/***********************************************************************
* DIB_GetBitmapInfo
*
* Get the info from a bitmap header.
* Return 0 for COREHEADER, 1 for INFOHEADER, -1 for error.
*/
int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
LONG *height, WORD *planes, WORD *bpp, DWORD *compr, DWORD *size )
{
if (!header) return -1;
if (header->biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)header;
*width = core->bcWidth;
*height = core->bcHeight;
*planes = core->bcPlanes;
*bpp = core->bcBitCount;
*compr = 0;
*size = 0;
return 0;
}
if (header->biSize >= sizeof(BITMAPINFOHEADER)) /* assume BITMAPINFOHEADER */
{
*width = header->biWidth;
*height = header->biHeight;
*planes = header->biPlanes;
*bpp = header->biBitCount;
*compr = header->biCompression;
*size = header->biSizeImage;
return 1;
}
ERR("(%d): unknown/wrong size for header\n", header->biSize );
return -1;
}
/*******************************************************************************************
* Fill out a true BITMAPINFOHEADER from a variable sized BITMAPINFOHEADER / BITMAPCOREHEADER.
*/
static BOOL bitmapinfoheader_from_user_bitmapinfo( BITMAPINFOHEADER *dst, const BITMAPINFOHEADER *info )
{
LONG width, height;
WORD planes, bpp;
DWORD compr, size;
int bitmap_type = DIB_GetBitmapInfo( info, &width, &height, &planes, &bpp, &compr, &size );
if (!info) return FALSE;
if (bitmap_type == -1) return FALSE;
if (bitmap_type == 1)
if (info->biSize == sizeof(BITMAPCOREHEADER))
{
const BITMAPCOREHEADER *core = (const BITMAPCOREHEADER *)info;
dst->biWidth = core->bcWidth;
dst->biHeight = core->bcHeight;
dst->biPlanes = core->bcPlanes;
dst->biBitCount = core->bcBitCount;
dst->biCompression = BI_RGB;
dst->biXPelsPerMeter = 0;
dst->biYPelsPerMeter = 0;
dst->biClrUsed = 0;
dst->biClrImportant = 0;
}
else if (info->biSize >= sizeof(BITMAPINFOHEADER)) /* assume BITMAPINFOHEADER */
{
*dst = *info;
}
else
{
dst->biWidth = width;
dst->biHeight = height;
dst->biPlanes = planes;
dst->biBitCount = bpp;
dst->biCompression = compr;
dst->biXPelsPerMeter = 0;
dst->biYPelsPerMeter = 0;
dst->biClrUsed = 0;
dst->biClrImportant = 0;
WARN( "(%u): unknown/wrong size for header\n", info->biSize );
return FALSE;
}
dst->biSize = sizeof(*dst);
@ -928,11 +892,7 @@ INT WINAPI GetDIBits(
/* Since info may be a BITMAPCOREINFO or any of the larger BITMAPINFO structures, we'll use our
own copy and transfer the colour info back at the end */
if (!bitmapinfoheader_from_user_bitmapinfo( &dst_info->bmiHeader, &info->bmiHeader ))
{
ERR("Invalid bitmap format\n");
return 0;
}
if (!bitmapinfoheader_from_user_bitmapinfo( &dst_info->bmiHeader, &info->bmiHeader )) return 0;
dst_info->bmiHeader.biClrUsed = 0;
dst_info->bmiHeader.biClrImportant = 0;

2
dlls/gdi32/gdi_private.h
View File

@ -338,8 +338,6 @@ extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
/* dib.c */
extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse ) DECLSPEC_HIDDEN;
extern int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
LONG *height, WORD *planes, WORD *bpp, DWORD *compr, DWORD *size ) DECLSPEC_HIDDEN;
extern DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
const BITMAPINFO *dst_info, void *dst_bits ) DECLSPEC_HIDDEN;