From: Brian Paul <brianp@vmware.com>
Date: Wed, 20 Jan 2010 01:00:26 +0000 (-0700)
Subject: util/blit: document params to util_blit_pixels_writemask()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1658f80153b84d7d7f0bebeaaf89f9850f782923;p=mesa.git

util/blit: document params to util_blit_pixels_writemask()
---

diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index 3f74e2aa8b8..9725890bd4a 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -262,6 +262,10 @@ regions_overlap(int srcX0, int srcY0,
  * Copy pixel block from src surface to dst surface.
  * Overlapping regions are acceptable.
  * Flipping and stretching are supported.
+ * \param filter  one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR
+ * \param writemask  controls which channels in the dest surface are sourced
+ *                   from the src surface.  Disabled channels are sourced
+ *                   from (0,0,0,1).
  * XXX what about clipping???
  * XXX need some control over blitting Z and/or stencil.
  */