From: Brian Paul <brianp@vmware.com>
Date: Mon, 26 Dec 2011 21:49:57 +0000 (-0700)
Subject: swrast: assert _swrast_map_teximage() x, y is multiple of block size
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=98dffd9764195be2734579a2b4ae7637b62ea7d8;p=mesa.git

swrast: assert _swrast_map_teximage() x, y is multiple of block size
---

diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index e31cd62679b..ffd78a2b895 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -189,6 +189,9 @@ _swrast_map_teximage(struct gl_context *ctx,
    stride = _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
    _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
 
+   assert(x % bw == 0);
+   assert(y % bh == 0);
+
    if (!swImage->Buffer) {
       /* probably ran out of memory when allocating tex mem */
       *mapOut = NULL;