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wined3d: Make sure transparent hardware cursors are really transparent. 

Loosely based on a patch by Stefan Dösinger.
This commit is contained in:
Henri Verbeet 2012-01-26 23:04:19 +01:00 committed by Alexandre Julliard
parent 3a18f54f84
commit 348c655b5c
1 changed files with 8 additions and 6 deletions
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14
dlls/wined3d/device.c
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@ -5004,14 +5004,16 @@ HRESULT CDECL wined3d_device_set_cursor_properties(struct wined3d_device *device
if (cursor_image->resource.width == 32 && cursor_image->resource.height == 32)
{
/* Draw a hardware cursor */
UINT mask_size = cursor_image->resource.width * cursor_image->resource.height / 8;
ICONINFO cursorInfo;
DWORD *maskBits;
HCURSOR cursor;
/* Create and clear maskBits because it is not needed for
* 32-bit cursors. 32x32 bits split into 32-bit chunks == 32
* chunks. */
DWORD *maskBits = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
(cursor_image->resource.width * cursor_image->resource.height / 8));
/* 32-bit user32 cursors ignore the alpha channel if it's all
* zeroes, and use the mask instead. Fill the mask with all ones
* to ensure we still get a fully transparent cursor. */
maskBits = HeapAlloc(GetProcessHeap(), 0, mask_size);
memset(maskBits, 0xff, mask_size);
wined3d_surface_map(cursor_image, &mapped_rect, NULL,
WINED3DLOCK_NO_DIRTY_UPDATE | WINED3DLOCK_READONLY);
TRACE("width: %u height: %u.\n", cursor_image->resource.width, cursor_image->resource.height);