From 187b631b6b3c504fa334e33f4b1af433b6232bac Mon Sep 17 00:00:00 2001 From: Brian Date: Wed, 7 Nov 2007 14:40:38 -0700 Subject: Float->uint conversion for PIPE_FORMAT_U_Z32 resulted in overflow in depth_value(). Special-case it. --- src/mesa/state_tracker/st_cb_clear.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/mesa') diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c index 2c79e2890d1..cb7e43fb8e9 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:*/ -- cgit v1.2.3