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gdi32: Implement GetImage in the null driver.

oldstable
Alexandre Julliard 2011-07-25 15:26:39 +02:00
parent 8a906250eb
commit bb3a1bdcac
3 changed files with 59 additions and 6 deletions
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58
dlls/gdi32/bitmap.c
View File

@ -79,6 +79,64 @@ LONG nulldrv_SetBitmapBits( HBITMAP bitmap, const void *bits, LONG size )
return size;
}
DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info,
struct gdi_image_bits *bits, struct bitblt_coords *src )
{
BITMAPOBJ *bmp;
int height, width_bytes;
if (!hbitmap) return ERROR_NOT_SUPPORTED;
if (!(bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP ))) return ERROR_INVALID_HANDLE;
info->bmiHeader.biSize = sizeof(info->bmiHeader);
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = bmp->bitmap.bmBitsPixel;
info->bmiHeader.biCompression = BI_RGB;
info->bmiHeader.biXPelsPerMeter = 0;
info->bmiHeader.biYPelsPerMeter = 0;
info->bmiHeader.biClrUsed = 0;
info->bmiHeader.biClrImportant = 0;
if (!bits) goto done;
height = src->visrect.bottom - src->visrect.top;
width_bytes = get_dib_stride( bmp->bitmap.bmWidth, bmp->bitmap.bmBitsPixel );
info->bmiHeader.biWidth = bmp->bitmap.bmWidth;
info->bmiHeader.biHeight = -height;
info->bmiHeader.biSizeImage = height * width_bytes;
/* make the source rectangle relative to the returned bits */
src->y -= src->visrect.top;
offset_rect( &src->visrect, 0, -src->visrect.top );
if (bmp->bitmap.bmBits && bmp->bitmap.bmWidthBytes == width_bytes)
{
bits->ptr = (char *)bmp->bitmap.bmBits + src->visrect.top * width_bytes;
bits->is_copy = FALSE;
bits->free = NULL;
}
else
{
bits->ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage );
bits->is_copy = TRUE;
bits->free = free_heap_bits;
if (bmp->bitmap.bmBits)
{
/* fixup the line alignment */
char *src = bmp->bitmap.bmBits, *dst = bits->ptr;
for ( ; height > 0; height--, src += bmp->bitmap.bmWidthBytes, dst += width_bytes)
{
memcpy( dst, src, bmp->bitmap.bmWidthBytes );
memset( dst + bmp->bitmap.bmWidthBytes, 0, width_bytes - bmp->bitmap.bmWidthBytes );
}
}
else memset( bits->ptr, 0, info->bmiHeader.biSizeImage );
}
done:
GDI_ReleaseObj( hbitmap );
return ERROR_SUCCESS;
}
/***********************************************************************
* BITMAP_GetWidthBytes
*

6
dlls/gdi32/driver.c
View File

@ -347,12 +347,6 @@ static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
return FALSE;
}
static DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info,
struct gdi_image_bits *bits, struct bitblt_coords *src )
{
return ERROR_NOT_SUPPORTED;
}
static COLORREF nulldrv_GetPixel( PHYSDEV dev, INT x, INT y )
{
return 0;

1
dlls/gdi32/gdi_private.h
View File

@ -482,6 +482,7 @@ extern BOOL nulldrv_FillRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush ) DECLSPEC_HIDD
extern BOOL nulldrv_FlattenPath( PHYSDEV dev ) DECLSPEC_HIDDEN;
extern BOOL nulldrv_FrameRgn( PHYSDEV dev, HRGN rgn, HBRUSH brush, INT width, INT height ) DECLSPEC_HIDDEN;
extern LONG nulldrv_GetBitmapBits( HBITMAP bitmap, void *bits, LONG size ) DECLSPEC_HIDDEN;
extern DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits, struct bitblt_coords *src ) DECLSPEC_HIDDEN;
extern COLORREF nulldrv_GetNearestColor( PHYSDEV dev, COLORREF color ) DECLSPEC_HIDDEN;
extern INT nulldrv_IntersectClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom ) DECLSPEC_HIDDEN;
extern BOOL nulldrv_InvertRgn( PHYSDEV dev, HRGN rgn ) DECLSPEC_HIDDEN;