Zebediah Figura : vkd3d-shader: Avoid underflowing the indentation level.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: e10e12a10ca0968e5faadef0a9d92435eab73091
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/e10e12a10ca0968e5faadef0a9d924...

Author: Zebediah Figura <zfigura(a)codeweavers.com>
Date:   Wed Nov  9 18:24:50 2022 -0600

vkd3d-shader: Avoid underflowing the indentation level.

Any shader that would underflow is invalid, but it is helpful to allow tracing even invalid shaders.

---

 libs/vkd3d-shader/trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/trace.c b/libs/vkd3d-shader/trace.c
index 8e2cac16..f32f26a7 100644
--- a/libs/vkd3d-shader/trace.c
+++ b/libs/vkd3d-shader/trace.c
@@ -1930,7 +1930,8 @@ enum vkd3d_result vkd3d_dxbc_binary_to_text(struct vkd3d_shader_parser *parser,
             case VKD3DSIH_ENDIF:
             case VKD3DSIH_ENDLOOP:
             case VKD3DSIH_ENDSWITCH:
-                --indent;
+                if (indent)
+                    --indent;
                 break;
 
             default: