1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* \file
* This is the interface that i915simple requires any window system
* hosting it to implement. This is the only include file in i915simple
* which is public.
*
* This isn't currently true as the winsys needs i915_batchbuffer.h
*/
#ifndef I915_WINSYS_H
#define I915_WINSYS_H
#include "pipe/p_defines.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Pipe drivers are independent of both GL and the window system.
* The window system provides a buffer manager and a set of additional
* hooks for things like command buffer submission, etc.
*
* There clearly has to be some agreement between the window system
* driver and the hardware driver about the format of command buffers,
* etc.
*/
struct i915_batchbuffer;
struct pipe_buffer;
struct pipe_fence_handle;
struct pipe_winsys;
struct pipe_screen;
/**
* Additional winsys interface for i915simple.
*
* It is an over-simple batchbuffer mechanism. Will want to improve the
* performance of this, perhaps based on the cmdstream stuff. It
* would be pretty impossible to implement swz on top of this
* interface.
*
* Will also need additions/changes to implement static/dynamic
* indirect state.
*/
struct i915_winsys {
void (*destroy)( struct i915_winsys *sws );
/**
* Get the current batch buffer from the winsys.
*/
struct i915_batchbuffer *(*batch_get)( struct i915_winsys *sws );
/**
* Emit a relocation to a buffer.
*
* Used not only when the buffer addresses are not pinned, but also to
* ensure refered buffers will not be destroyed until the current batch
* buffer execution is finished.
*
* The access flags is a combination of I915_BUFFER_ACCESS_WRITE and
* I915_BUFFER_ACCESS_READ macros.
*/
void (*batch_reloc)( struct i915_winsys *sws,
struct pipe_buffer *buf,
unsigned access_flags,
unsigned delta );
/**
* Flush the batch.
*/
void (*batch_flush)( struct i915_winsys *sws,
struct pipe_fence_handle **fence );
};
#define I915_BUFFER_ACCESS_WRITE 0x1
#define I915_BUFFER_ACCESS_READ 0x2
#define I915_BUFFER_USAGE_LIT_VERTEX (PIPE_BUFFER_USAGE_CUSTOM << 0)
/**
* Create i915 pipe_screen.
*/
struct pipe_screen *i915_create_screen( struct pipe_winsys *winsys,
uint pci_id );
/**
* Create a i915 pipe_context.
*/
struct pipe_context *i915_create_context( struct pipe_screen *screen,
struct pipe_winsys *winsys,
struct i915_winsys *i915 );
#ifdef __cplusplus
}
#endif
#endif
|
