gdi32: Forward the null driver GetImage to the DIB driver since the bits are in DIB format.

dlls/gdi32/bitmap.c

@@ -54,55 +54,31 @@ DWORD nulldrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info,
                         struct gdi_image_bits *bits, struct bitblt_coords *src )
 {
     BITMAPOBJ *bmp;
-    int height, width_bytes;
+    DWORD ret;
 
     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 (bmp->bitmap.bmBitsPixel == 16)
+    if (bmp->bitmap.bmBits || !bits)
     {
-        DWORD *masks = (DWORD *)info->bmiColors;
-        masks[0] = 0x7c00;
-        masks[1] = 0x03e0;
-        masks[2] = 0x001f;
-        info->bmiHeader.biCompression = BI_BITFIELDS;
+        ret = dib_driver.pGetImage( 0, hbitmap, info, bits, src );
     }
-    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;
+    else if (!(ret = dib_driver.pGetImage( 0, hbitmap, info, NULL, src )))
+    {
+        info->bmiHeader.biHeight = -(src->visrect.bottom - src->visrect.top);
+        info->bmiHeader.biSizeImage = get_dib_image_size( info );
 
         /* 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)
-    {
-        bits->ptr = (char *)bmp->bitmap.bmBits + src->visrect.top * width_bytes;
-        bits->is_copy = FALSE;
-        bits->free = NULL;
-    }
-    else
-    {
         /* return all-zero bits */
         bits->ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage );
         bits->is_copy = TRUE;
         bits->free = free_heap_bits;
     }
-done:
     GDI_ReleaseObj( hbitmap );
-    return ERROR_SUCCESS;
+    return ret;
 }
 
 DWORD nulldrv_PutImage( PHYSDEV dev, HBITMAP hbitmap, HRGN clip, BITMAPINFO *info,

dlls/gdi32/dib.c

@@ -895,6 +895,22 @@ static void fill_default_color_table( BITMAPINFO *info )
     }
 }
 
+void get_ddb_bitmapinfo( BITMAPOBJ *bmp, BITMAPINFO *info )
+{
+    info->bmiHeader.biSize          = sizeof(info->bmiHeader);
+    info->bmiHeader.biWidth         = bmp->bitmap.bmWidth;
+    info->bmiHeader.biHeight        = -bmp->bitmap.bmHeight;
+    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 (info->bmiHeader.biBitCount <= 8) fill_default_color_table( info );
+}
+
+
 /******************************************************************************
  * GetDIBits [GDI32.@]
  *

dlls/gdi32/dibdrv/dc.c

@@ -213,7 +213,14 @@ BOOL init_dib_info_from_bitmapinfo(dib_info *dib, const BITMAPINFO *info, void *
 
 BOOL init_dib_info_from_bitmapobj(dib_info *dib, BITMAPOBJ *bmp, enum dib_info_flags flags)
 {
-    assert(bmp->dib);
+    if (!bmp->dib)
+    {
+        char buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
+        BITMAPINFO *info = (BITMAPINFO *)buffer;
+
+        get_ddb_bitmapinfo( bmp, info );
+        return init_dib_info_from_bitmapinfo( dib, info, bmp->bitmap.bmBits, flags );
+    }
     return init_dib_info( dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields,
                           bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits, flags );
 }

dlls/gdi32/gdi_private.h

@@ -308,6 +308,7 @@ extern BOOL BIDI_Reorder( HDC hDC, LPCWSTR lpString, INT uCount, DWORD dwFlags,
                           LPWSTR lpOutString, INT uCountOut, UINT *lpOrder, WORD **lpGlyphs, INT* cGlyphs ) DECLSPEC_HIDDEN;
 
 /* bitmap.c */
+extern void get_ddb_bitmapinfo( BITMAPOBJ *bmp, BITMAPINFO *info ) DECLSPEC_HIDDEN;
 extern BOOL get_bitmap_image( HBITMAP hbitmap, BITMAPINFO *info, struct gdi_image_bits *bits ) DECLSPEC_HIDDEN;
 extern HBITMAP BITMAP_CopyBitmap( HBITMAP hbitmap ) DECLSPEC_HIDDEN;
 extern BOOL BITMAP_SetOwnerDC( HBITMAP hbitmap, PHYSDEV physdev ) DECLSPEC_HIDDEN;