1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
31 #include "p_context.h"
32 #include "p_defines.h"
42 * Set 'ptr' to point to 'surf' and update reference counting.
43 * The old thing pointed to, if any, will be unreferenced first.
47 pipe_surface_reference(struct pipe_surface
**ptr
, struct pipe_surface
*surf
)
49 /* bump the refcount first */
51 assert(surf
->refcount
);
56 struct pipe_screen
*screen
;
57 assert((*ptr
)->refcount
);
58 assert((*ptr
)->texture
);
59 screen
= (*ptr
)->texture
->screen
;
60 screen
->tex_surface_release( screen
, ptr
);
69 * \sa pipe_surface_reference
72 pipe_texture_reference(struct pipe_texture
**ptr
,
73 struct pipe_texture
*pt
)
83 struct pipe_screen
*screen
= (*ptr
)->screen
;
85 assert((*ptr
)->refcount
);
86 screen
->texture_release(screen
, ptr
);
96 pipe_texture_release(struct pipe_texture
**ptr
)
98 struct pipe_screen
*screen
;
100 screen
= (*ptr
)->screen
;
101 assert((*ptr
)->refcount
);
102 screen
->texture_release(screen
, ptr
);
108 * Convenience wrappers for screen buffer functions.
111 static INLINE
struct pipe_buffer
*
112 pipe_buffer_create( struct pipe_screen
*screen
,
113 unsigned alignment
, unsigned usage
, unsigned size
)
115 return screen
->buffer_create(screen
, alignment
, usage
, size
);
118 static INLINE
struct pipe_buffer
*
119 pipe_user_buffer_create( struct pipe_screen
*screen
, void *ptr
, unsigned size
)
121 return screen
->user_buffer_create(screen
, ptr
, size
);
125 pipe_buffer_map(struct pipe_screen
*screen
,
126 struct pipe_buffer
*buf
,
129 return screen
->buffer_map(screen
, buf
, usage
);
133 pipe_buffer_unmap(struct pipe_screen
*screen
,
134 struct pipe_buffer
*buf
)
136 screen
->buffer_unmap(screen
, buf
);
139 /* XXX: thread safety issues!
142 pipe_buffer_reference(struct pipe_screen
*screen
,
143 struct pipe_buffer
**ptr
,
144 struct pipe_buffer
*buf
)
147 assert(buf
->refcount
);
152 assert((*ptr
)->refcount
);
153 if(--(*ptr
)->refcount
== 0) {
154 screen
->buffer_destroy( screen
, *ptr
);
166 #endif /* P_INLINES_H */