From 3fe2bb8933c15a7091838fd982dbad402fe6ad43 Mon Sep 17 00:00:00 2001 From: Jose Fonseca Date: Fri, 19 Apr 2002 20:12:30 +0000 Subject: Added min and max blend functions. Slight optimization of _mesa_mmx_blend_add. --- src/mesa/swrast/s_blend.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'src/mesa/swrast/s_blend.c') diff --git a/src/mesa/swrast/s_blend.c b/src/mesa/swrast/s_blend.c index 0d75e2a8cf..73e7de5c31 100644 --- a/src/mesa/swrast/s_blend.c +++ b/src/mesa/swrast/s_blend.c @@ -1,4 +1,4 @@ -/* $Id: s_blend.c,v 1.21 2002/04/19 10:53:08 jrfonseca Exp $ */ +/* $Id: s_blend.c,v 1.22 2002/04/19 20:12:31 jrfonseca Exp $ */ /* * Mesa 3-D graphics library @@ -678,10 +678,22 @@ void _swrast_choose_blend_func( GLcontext *ctx ) SWRAST_CONTEXT(ctx)->BlendFunc = blend_modulate; } else if (eq==GL_MIN_EXT) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_min; +#if defined(USE_MMX_ASM) + if ( cpu_has_mmx ) { + SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_min; + } + else +#endif + SWRAST_CONTEXT(ctx)->BlendFunc = blend_min; } else if (eq==GL_MAX_EXT) { - SWRAST_CONTEXT(ctx)->BlendFunc = blend_max; +#if defined(USE_MMX_ASM) + if ( cpu_has_mmx ) { + SWRAST_CONTEXT(ctx)->BlendFunc = _mesa_mmx_blend_max; + } + else +#endif + SWRAST_CONTEXT(ctx)->BlendFunc = blend_max; } else if (eq==GL_FUNC_ADD_EXT && srcRGB == GL_ZERO && dstRGB == GL_ONE) { SWRAST_CONTEXT(ctx)->BlendFunc = blend_noop; -- cgit v1.2.3