diff options
| author | Brian Paul <[email protected]> | 2002-11-12 19:27:24 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2002-11-12 19:27:24 +0000 |
| commit | 7069a7e3d670a27573aa158fe53c9e906f40fe19 (patch) | |
| tree | c6cd558b6a6f0ae2a8e6087034fa70f48e2712b9 | |
| parent | d5cbe1e924b4daf3f04de17148d973e88e4d4de8 (diff) | |
apply scale factor before clapping for DOT3
| -rw-r--r-- | src/mesa/swrast/s_texture.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c index 73fbccff641..60091e3743e 100644 --- a/src/mesa/swrast/s_texture.c +++ b/src/mesa/swrast/s_texture.c @@ -1,8 +1,8 @@ -/* $Id: s_texture.c,v 1.74 2002/10/28 23:01:24 kschultz Exp $ */ +/* $Id: s_texture.c,v 1.75 2002/11/12 19:27:24 brianp Exp $ */ /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 5.0 * * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. * @@ -3139,8 +3139,8 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n, GLchan dot = ((arg0[i][RCOMP]-0.5F) * (arg1[i][RCOMP]-0.5F) + (arg0[i][GCOMP]-0.5F) * (arg1[i][GCOMP]-0.5F) + (arg0[i][BCOMP]-0.5F) * (arg1[i][BCOMP]-0.5F)) - * 4.0F; - dot = CLAMP(dot, 0.0, CHAN_MAXF) * RGBmult; + * 4.0F * RGBmult; + dot = CLAMP(dot, 0.0, CHAN_MAXF); #else GLint dot = (S_PROD((GLint)arg0[i][RCOMP] - half, (GLint)arg1[i][RCOMP] - half) + @@ -3148,7 +3148,8 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n, (GLint)arg1[i][GCOMP] - half) + S_PROD((GLint)arg0[i][BCOMP] - half, (GLint)arg1[i][BCOMP] - half)) >> 6; - dot = CLAMP(dot, 0, CHAN_MAX) << RGBshift; + dot <<= RGBshift; + dot = CLAMP(dot, 0, CHAN_MAX); #endif rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = (GLchan) dot; } |