diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_clip.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_clip.c | 151 |
1 files changed, 76 insertions, 75 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_clip.c b/mesalib/src/mesa/state_tracker/st_atom_clip.c index 24d479a74..1330db843 100644 --- a/mesalib/src/mesa/state_tracker/st_atom_clip.c +++ b/mesalib/src/mesa/state_tracker/st_atom_clip.c @@ -1,75 +1,76 @@ -/**************************************************************************
- *
- * 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 */
-};
+/************************************************************************** + * + * 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; + const struct gl_context *ctx = st->ctx; + GLuint i; + + memset(&clip, 0, sizeof(clip)); + + for (i = 0; i < PIPE_MAX_CLIP_PLANES; i++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << i)) { + memcpy(clip.ucp[clip.nr], + ctx->Transform._ClipUserPlane[i], + sizeof(clip.ucp[0])); + clip.nr++; + } + } + + clip.depth_clamp = 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 */ +}; |