| 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 <keith@tungstengraphics.com> |
| */ |
| |
| |
| #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 */ |
| }; |