From 807c6931fe683fd844ceec1b023232181e6aae03 Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 28 Dec 2010 16:10:20 +0000 Subject: xserver and mesa git update 28-12-2010 --- mesalib/src/mesa/state_tracker/st_atom_clip.c | 75 +++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 mesalib/src/mesa/state_tracker/st_atom_clip.c (limited to 'mesalib/src/mesa/state_tracker/st_atom_clip.c') diff --git a/mesalib/src/mesa/state_tracker/st_atom_clip.c b/mesalib/src/mesa/state_tracker/st_atom_clip.c new file mode 100644 index 000000000..24d479a74 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_atom_clip.c @@ -0,0 +1,75 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + /* + * Authors: + * Keith Whitwell + */ + + +#include "st_context.h" +#include "pipe/p_context.h" +#include "st_atom.h" + +#include "cso_cache/cso_context.h" + + +/* Second state atom for user clip planes: + */ +static void update_clip( struct st_context *st ) +{ + struct pipe_clip_state clip; + GLuint i; + + memset(&clip, 0, sizeof(clip)); + + for (i = 0; i < PIPE_MAX_CLIP_PLANES; i++) { + if (st->ctx->Transform.ClipPlanesEnabled & (1 << i)) { + memcpy(clip.ucp[clip.nr], + st->ctx->Transform._ClipUserPlane[i], + sizeof(clip.ucp[0])); + clip.nr++; + } + } + + clip.depth_clamp = st->ctx->Transform.DepthClamp != GL_FALSE; + + if (memcmp(&clip, &st->state.clip, sizeof(clip)) != 0) { + st->state.clip = clip; + cso_set_clip(st->cso_context, &clip); + } +} + + +const struct st_tracked_state st_update_clip = { + "st_update_clip", /* name */ + { /* dirty */ + (_NEW_TRANSFORM), /* mesa */ + 0, /* st */ + }, + update_clip /* update */ +}; -- cgit v1.2.3