diff options
Diffstat (limited to 'src/mesa/state_tracker/st_cb_clear.c')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_clear.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c index 2c79e2890d..cb7e43fb8e 100644 --- a/src/mesa/state_tracker/st_cb_clear.c +++ b/src/mesa/state_tracker/st_cb_clear.c @@ -86,7 +86,11 @@ depth_value(GLuint pipeFormat, GLfloat value) val = (GLuint) (value * 0xffffff); break; case PIPE_FORMAT_U_Z32: - val = (GLuint) (value * 0xffffffff); + /* special-case to avoid overflow */ + if (value == 1.0) + val = 0xffffffff; + else + val = (GLuint) (value * 0xffffffff); break; case PIPE_FORMAT_S8_Z24: /*case PIPE_FORMAT_Z24_S8:*/ |