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
131
132
133
134
|
/*
* Copyright 2008 Tungsten Graphics, inc.
* 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
* on 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 THEIR 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.
*/
/**
* Vertex fetch/store/convert code. This functionality is used in two places:
* 1. Vertex fetch/convert - to grab vertex data from incoming vertex
* arrays and convert to format needed by vertex shaders.
* 2. Vertex store/emit - to convert simple float[][4] vertex attributes
* (which is the organization used throughout the draw/prim pipeline) to
* hardware-specific formats and emit into hardware vertex buffers.
*
*
* Authors:
* Keith Whitwell <keithw@tungstengraphics.com>
*/
#ifndef _TRANSLATE_H
#define _TRANSLATE_H
#include "pipe/p_compiler.h"
#include "pipe/p_format.h"
#include "pipe/p_state.h"
struct translate_element
{
enum pipe_format input_format;
enum pipe_format output_format;
unsigned input_buffer:8;
unsigned input_offset:24;
unsigned instance_divisor;
unsigned output_offset;
};
struct translate_key {
unsigned output_stride;
unsigned nr_elements;
struct translate_element element[PIPE_MAX_ATTRIBS + 1];
};
struct translate {
struct translate_key key;
void (*release)( struct translate * );
void (*set_buffer)( struct translate *,
unsigned i,
const void *ptr,
unsigned stride );
void (PIPE_CDECL *run_elts)( struct translate *,
const unsigned *elts,
unsigned count,
void *output_buffer);
void (PIPE_CDECL *run)( struct translate *,
unsigned start,
unsigned count,
unsigned instance_id,
void *output_buffer);
};
#if 0
struct translate_context *translate_context_create( void );
void translate_context_destroy( struct translate_context * );
struct translate *translate_lookup_or_create( struct translate_context *tctx,
const struct translate_key *key );
#endif
struct translate *translate_create( const struct translate_key *key );
static INLINE int translate_keysize( const struct translate_key *key )
{
return 2 * sizeof(int) + key->nr_elements * sizeof(struct translate_element);
}
static INLINE int translate_key_compare( const struct translate_key *a,
const struct translate_key *b )
{
int keysize_a = translate_keysize(a);
int keysize_b = translate_keysize(b);
if (keysize_a != keysize_b) {
return keysize_a - keysize_b;
}
return memcmp(a, b, keysize_a);
}
static INLINE void translate_key_sanitize( struct translate_key *a )
{
int keysize = translate_keysize(a);
char *ptr = (char *)a;
memset(ptr + keysize, 0, sizeof(*a) - keysize);
}
/*******************************************************************************
* Private:
*/
struct translate *translate_sse2_create( const struct translate_key *key );
struct translate *translate_generic_create( const struct translate_key *key );
#endif
|
