1 /**************************************************************************
3 * Copyright © 2009 Jakob Bornecrantz
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
24 **************************************************************************/
26 #include "util/u_memory.h"
27 #include "i915_screen.h"
28 #include "i915_buffer.h"
34 struct pipe_buffer base
;
36 struct intel_buffer
*ibuf
; /** hw buffer */
38 void *data
; /**< user and malloc data */
39 boolean own
; /**< we own the data incase of malloc */
42 static INLINE
struct i915_buffer
*
43 i915_buffer(struct pipe_buffer
*buffer
)
45 return (struct i915_buffer
*)buffer
;
48 static struct pipe_buffer
*
49 i915_buffer_create(struct pipe_screen
*screen
,
54 struct i915_buffer
*buf
= CALLOC_STRUCT(i915_buffer
);
59 pipe_reference_init(&buf
->base
.reference
, 1);
60 buf
->base
.alignment
= alignment
;
61 buf
->base
.screen
= screen
;
62 buf
->base
.usage
= usage
;
63 buf
->base
.size
= size
;
64 buf
->data
= MALLOC(size
);
77 static struct pipe_buffer
*
78 i915_user_buffer_create(struct pipe_screen
*screen
,
82 struct i915_buffer
*buf
= CALLOC_STRUCT(i915_buffer
);
87 pipe_reference_init(&buf
->base
.reference
, 1);
88 buf
->base
.alignment
= 0;
89 buf
->base
.screen
= screen
;
91 buf
->base
.size
= bytes
;
99 i915_buffer_map(struct pipe_screen
*screen
,
100 struct pipe_buffer
*buffer
,
103 struct i915_buffer
*buf
= i915_buffer(buffer
);
109 i915_buffer_unmap(struct pipe_screen
*screen
,
110 struct pipe_buffer
*buffer
)
112 struct i915_buffer
*buf
= i915_buffer(buffer
);
117 i915_buffer_destroy(struct pipe_buffer
*buffer
)
119 struct i915_buffer
*buf
= i915_buffer(buffer
);
127 void i915_init_screen_buffer_functions(struct i915_screen
*screen
)
129 screen
->base
.buffer_create
= i915_buffer_create
;
130 screen
->base
.user_buffer_create
= i915_user_buffer_create
;
131 screen
->base
.buffer_map
= i915_buffer_map
;
132 screen
->base
.buffer_map_range
= NULL
;
133 screen
->base
.buffer_flush_mapped_range
= NULL
;
134 screen
->base
.buffer_unmap
= i915_buffer_unmap
;
135 screen
->base
.buffer_destroy
= i915_buffer_destroy
;