diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2007-08-06 10:15:30 +0100 |
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committer | Keith Whitwell <keith@tungstengraphics.com> | 2007-08-06 10:15:30 +0100 |
commit | 95794abec4bdc5cda9f2e7d139a70c3acf372fe3 (patch) | |
tree | 31b3c2550363639bccd6a8d1e72a860f196800f7 /src/mesa/state_tracker/st_cb_bufferobjects.h | |
parent | 1d1b9e6be45e75ad12a01c82e3c0d55ff9da4183 (diff) |
Add pipe buffer managment functions.
The state_tracker driver needs these to implement, eg. pixel buffer objects,
vertex buffer objects.
Diffstat (limited to 'src/mesa/state_tracker/st_cb_bufferobjects.h')
-rw-r--r-- | src/mesa/state_tracker/st_cb_bufferobjects.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.h b/src/mesa/state_tracker/st_cb_bufferobjects.h new file mode 100644 index 0000000000..2787411c5f --- /dev/null +++ b/src/mesa/state_tracker/st_cb_bufferobjects.h @@ -0,0 +1,66 @@ + /************************************************************************** + * + * Copyright 2005 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. + * + **************************************************************************/ + +#ifndef ST_CB_BUFFEROBJECTS_H +#define ST_CB_BUFFEROBJECTS_H + +struct st_context; +struct gl_buffer_object; +struct pipe_buffer_handle; + +/** + * State_tracker vertex/pixel buffer object, derived from Mesa's + * gl_buffer_object. + */ +struct st_buffer_object +{ + struct gl_buffer_object Base; + struct pipe_buffer_handle *buffer; +}; + + +/* Hook the bufferobject implementation into mesa: + */ +void st_init_cb_bufferobjects( struct st_context *st ); + + +/* Are the obj->Name tests necessary? Unfortunately yes, mesa + * allocates a couple of gl_buffer_object structs statically, and the + * Name == 0 test is the only way to identify them and avoid casting + * them erroneously to our structs. + */ +static INLINE struct st_buffer_object * +st_buffer_object(struct gl_buffer_object *obj) +{ + if (obj->Name) + return (struct st_buffer_object *) obj; + else + return NULL; +} + + +#endif |