diff options
| author | Brian Paul <[email protected]> | 2002-11-09 21:26:41 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2002-11-09 21:26:41 +0000 |
| commit | e307931314f1145305ac2946f13f5e2f020313ec (patch) | |
| tree | 7c7f9f4d979438dd8eada3c6bfc71fb2cc026bdb /src/mesa/swrast/s_linetemp.h | |
| parent | 2dee6187e45ce98b0f3c563a2cbc823bb7340e6c (diff) | |
fix one-bit error in float->int Z calculation
Diffstat (limited to 'src/mesa/swrast/s_linetemp.h')
| -rw-r--r-- | src/mesa/swrast/s_linetemp.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/mesa/swrast/s_linetemp.h b/src/mesa/swrast/s_linetemp.h index fec413c6a20..1fb14dcd10a 100644 --- a/src/mesa/swrast/s_linetemp.h +++ b/src/mesa/swrast/s_linetemp.h @@ -1,8 +1,8 @@ -/* $Id: s_linetemp.h,v 1.13 2002/03/19 15:22:50 brianp Exp $ */ +/* $Id: s_linetemp.h,v 1.14 2002/11/09 21:26:41 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 5.0 * * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. * @@ -176,8 +176,9 @@ /* printf("%s():\n", __FUNCTION__); - printf(" (%f, %f) -> (%f, %f)\n", - vert0->win[0], vert0->win[1], vert1->win[0], vert1->win[1]); + printf(" (%f, %f, %f) -> (%f, %f, %f)\n", + vert0->win[0], vert0->win[1], vert0->win[2], + vert1->win[0], vert1->win[1], vert1->win[2]); printf(" (%d, %d, %d) -> (%d, %d, %d)\n", vert0->color[0], vert0->color[1], vert0->color[2], vert1->color[0], vert1->color[1], vert1->color[2]); @@ -229,8 +230,8 @@ zPtr = (DEPTH_TYPE *) _mesa_zbuffer_address(ctx, x0, y0); # endif if (depthBits <= 16) { - z0 = FloatToFixed(vert0->win[2]); - z1 = FloatToFixed(vert1->win[2]); + z0 = FloatToFixed(vert0->win[2]) + FIXED_HALF; + z1 = FloatToFixed(vert1->win[2]) + FIXED_HALF; } else { z0 = (int) vert0->win[2]; |