Mesa (master): st/mesa: fix incorrect RowStride computation
Brian Paul
brianp at kemper.freedesktop.org
Wed Apr 28 16:11:07 UTC 2010
Module: Mesa
Branch: master
Commit: 7b640f9f708306b3e8c661771f29bf24bf8687fb
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7b640f9f708306b3e8c661771f29bf24bf8687fb
Author: Brian Paul <brianp at vmware.com>
Date: Wed Apr 28 10:06:05 2010 -0600
st/mesa: fix incorrect RowStride computation
Fixes incorrect stride when getting a compressed tex image.
---
src/mesa/state_tracker/st_cb_texture.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 92eefca..61d3f0f 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -931,7 +931,10 @@ st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
PIPE_TRANSFER_READ, 0, 0,
stImage->base.Width,
stImage->base.Height);
- texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format);
+ /* compute stride in texels from stride in bytes */
+ texImage->RowStride = stImage->transfer->stride
+ * util_format_get_blockwidth(stImage->pt->format)
+ / util_format_get_blocksize(stImage->pt->format);
}
else {
/* Otherwise, the image should actually be stored in
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