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gdi32: Make sure that biSizeImage always contains the correct size in internal BITMAPINFO structures.

This commit is contained in:
Alexandre Julliard 2011-12-10 13:27:16 +01:00
parent 25e2fae2a8
commit 82e1a4616c
2 changed files with 11 additions and 7 deletions
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14
dlls/gdi32/bitblt.c
View File

@ -170,7 +170,9 @@ DWORD convert_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
DWORD err;
dst_info->bmiHeader.biWidth = src->visrect.right - src->visrect.left;
if (!(ptr = HeapAlloc( GetProcessHeap(), 0, get_dib_image_size( dst_info ))))
dst_info->bmiHeader.biSizeImage = get_dib_image_size( dst_info );
if (!(ptr = HeapAlloc( GetProcessHeap(), 0, dst_info->bmiHeader.biSizeImage )))
return ERROR_OUTOFMEMORY;
err = convert_bitmapinfo( src_info, bits->ptr, src, dst_info, ptr, add_alpha );
@ -190,8 +192,10 @@ DWORD stretch_bits( const BITMAPINFO *src_info, struct bitblt_coords *src,
dst_info->bmiHeader.biWidth = dst->visrect.right - dst->visrect.left;
dst_info->bmiHeader.biHeight = dst->visrect.bottom - dst->visrect.top;
dst_info->bmiHeader.biSizeImage = get_dib_image_size( dst_info );
if (src_info->bmiHeader.biHeight < 0) dst_info->bmiHeader.biHeight = -dst_info->bmiHeader.biHeight;
if (!(ptr = HeapAlloc( GetProcessHeap(), 0, get_dib_image_size( dst_info ))))
if (!(ptr = HeapAlloc( GetProcessHeap(), 0, dst_info->bmiHeader.biSizeImage )))
return ERROR_OUTOFMEMORY;
err = stretch_bitmapinfo( src_info, bits->ptr, src, dst_info, ptr, dst, mode );
@ -208,7 +212,7 @@ static DWORD blend_bits( const BITMAPINFO *src_info, const struct gdi_image_bits
{
if (!dst_bits->is_copy)
{
int size = get_dib_image_size( dst_info );
int size = dst_info->bmiHeader.biSizeImage;
void *ptr = HeapAlloc( GetProcessHeap(), 0, size );
if (!ptr) return ERROR_OUTOFMEMORY;
memcpy( ptr, dst_bits->ptr, size );
@ -446,11 +450,11 @@ BOOL nulldrv_GradientFill( PHYSDEV dev, TRIVERTEX *vert_array, ULONG nvert,
info->bmiHeader.biClrImportant = 0;
info->bmiHeader.biWidth = dst.visrect.right - dst.visrect.left;
info->bmiHeader.biHeight = dst.visrect.bottom - dst.visrect.top;
info->bmiHeader.biSizeImage = 0;
info->bmiHeader.biSizeImage = get_dib_image_size( info );
dev = GET_DC_PHYSDEV( dc, pPutImage );
err = dev->funcs->pPutImage( dev, 0, 0, info, NULL, NULL, NULL, 0 );
if ((err && err != ERROR_BAD_FORMAT) ||
!(bits.ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, get_dib_image_size( info ))))
!(bits.ptr = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage )))
{
ret = FALSE;
goto done;

4
dlls/gdi32/brush.c
View File

@ -126,12 +126,12 @@ static BOOL copy_bitmap( BRUSHOBJ *brush, HBITMAP bitmap )
memcpy( &info->bmiHeader + 1, bmp->dib->dsBitfields, sizeof(bmp->dib->dsBitfields) );
else if (info->bmiHeader.biClrUsed)
memcpy( &info->bmiHeader + 1, bmp->color_table, info->bmiHeader.biClrUsed * sizeof(RGBQUAD) );
if (!(brush->bits.ptr = HeapAlloc( GetProcessHeap(), 0, get_dib_image_size( info ))))
if (!(brush->bits.ptr = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage )))
{
HeapFree( GetProcessHeap(), 0, info );
goto done;
}
memcpy( brush->bits.ptr, bmp->dib->dsBm.bmBits, get_dib_image_size( info ));
memcpy( brush->bits.ptr, bmp->dib->dsBm.bmBits, info->bmiHeader.biSizeImage );
brush->bits.is_copy = TRUE;
brush->bits.free = free_heap_bits;
brush->info = info;