diff options
| author | Gert Wollny <[email protected]> | 2018-07-01 10:37:12 +0200 |
|---|---|---|
| committer | Gert Wollny <[email protected]> | 2018-07-05 07:59:07 +0200 |
| commit | 806a42fc47ba1bbc36ca61bd57908443c382d8a7 (patch) | |
| tree | 3b4e874fbac6d9e2d82d3b5e3eea5e3182bb378c /src | |
| parent | 9c1ae6a1a11b249bf4a3f5bcf8a463fc9703e42f (diff) | |
r600: compare structure elements instead of doing a memcmp
Structures might be padded by the compiler and these padding bytes remain
un-initialized which in turn makes memcmp return a difference where from
the logical point of view there is none.
Fixes valgrind:
Conditional jump or move depends on uninitialised value(s)
at 0x4C32CBA: __memcmp_sse4_1 (vg_replace_strmem.c:1099)
by 0xB8D2537: r600_set_vertex_buffers (r600_state_common.c:573)
by 0xB71D44A: u_vbuf_set_driver_vertex_buffers (u_vbuf.c:1129)
by 0xB71F7BB: u_vbuf_draw_vbo (u_vbuf.c:1153)
by 0xB3B92CB: st_draw_vbo (st_draw.c:235)
by 0xB36B1AE: vbo_draw_arrays (vbo_exec_array.c:391)
by 0xB36BB0D: vbo_exec_DrawArrays (vbo_exec_array.c:550)
by 0x10A989: piglit_display (textureSize.c:157)
by 0x4F8F174: run_test (piglit_fbo_framework.c:52)
by 0x4F7BA12: piglit_gl_test_run (piglit-framework-gl.c:229)
by 0x10A60A: main (textureSize.c:71)
Uninitialised value was created by a stack allocation
at 0xB3948FD: st_update_array (st_atom_array.c:388)
Signed-off-by: Gert Wollny <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/r600/r600_state_common.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c index 1e775e565b5..939a14654e0 100644 --- a/src/gallium/drivers/r600/r600_state_common.c +++ b/src/gallium/drivers/r600/r600_state_common.c @@ -570,7 +570,10 @@ static void r600_set_vertex_buffers(struct pipe_context *ctx, /* Set vertex buffers. */ if (input) { for (i = 0; i < count; i++) { - if (memcmp(&input[i], &vb[i], sizeof(struct pipe_vertex_buffer))) { + if ((input[i].buffer.resource != vb[i].buffer.resource) || + (vb[i].stride != input[i].stride) || + (vb[i].buffer_offset != input[i].buffer_offset) || + (vb[i].is_user_buffer != input[i].is_user_buffer)) { if (input[i].buffer.resource) { vb[i].stride = input[i].stride; vb[i].buffer_offset = input[i].buffer_offset; |