diff options
| author | Brian Paul <[email protected]> | 2011-06-15 16:41:13 -0600 |
|---|---|---|
| committer | Thomas Hellstrom <[email protected]> | 2011-07-01 13:30:39 +0200 |
| commit | fa4bd302122c28ee00d77dcc36723fcd31656841 (patch) | |
| tree | c3d5a57060e53e1ff93035bad4e440e27915cf7c | |
| parent | bd00fb2c060d3d90be670a2f0bbd6f9c9fd2b4ae (diff) | |
svga: fix incorrect user buffer size computation
Viewperf uses some unusual vertex arrays where the stride is less
than the element size. In this case, the stride was 4 while the
element size was 12. The difference of 8 bytes causes us to miss
uploading the tail bit of the array data.
Typically the stride is >= the element size so there was no problem
with other apps.
| -rw-r--r-- | src/gallium/drivers/svga/svga_pipe_draw.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_draw.c b/src/gallium/drivers/svga/svga_pipe_draw.c index 8e1c764ef5f..78f5aa10677 100644 --- a/src/gallium/drivers/svga/svga_pipe_draw.c +++ b/src/gallium/drivers/svga/svga_pipe_draw.c @@ -25,6 +25,7 @@ #include "svga_cmd.h" +#include "util/u_format.h" #include "util/u_inlines.h" #include "util/u_prim.h" #include "util/u_time.h" @@ -75,8 +76,9 @@ svga_upload_user_buffers(struct svga_context *svga, size = vb->stride * (instance_count + instance_div - 1) / instance_div; } else if (vb->stride) { + uint elemSize = util_format_get_blocksize(ve->src_format); first = vb->stride * start; - size = vb->stride * count; + size = vb->stride * (count - 1) + elemSize; } else { /* Only a single vertex! * Upload with the largest vertex size the hw supports, |