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
135
136
137
138
139
140
141
142
143
144
145
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* (C) Copyright IBM Corporation 2008
* 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.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
* Ian Romanick <idr@us.ibm.com>
*/
#include "pipe/p_state.h"
#include "pipe/p_shader_tokens.h"
#include "spu_exec.h"
#include "spu_vertex_shader.h"
#include "spu_main.h"
#include "spu_dcache.h"
typedef void (*spu_fetch_func)(qword *out, const qword *in,
const qword *shuffle_data);
static const qword fetch_shuffle_data[5] ALIGN16_ATTRIB = {
/* Shuffle used by CVT_64_FLOAT
*/
{
0x00, 0x01, 0x02, 0x03, 0x10, 0x11, 0x12, 0x13,
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
},
/* Shuffle used by CVT_8_USCALED and CVT_8_SSCALED
*/
{
0x00, 0x80, 0x80, 0x80, 0x01, 0x80, 0x80, 0x80,
0x02, 0x80, 0x80, 0x80, 0x03, 0x80, 0x80, 0x80,
},
/* Shuffle used by CVT_16_USCALED and CVT_16_SSCALED
*/
{
0x00, 0x01, 0x80, 0x80, 0x02, 0x03, 0x80, 0x80,
0x04, 0x05, 0x80, 0x80, 0x06, 0x07, 0x80, 0x80,
},
/* High value shuffle used by trans4x4.
*/
{
0x00, 0x01, 0x02, 0x03, 0x10, 0x11, 0x12, 0x13,
0x04, 0x05, 0x06, 0x07, 0x14, 0x15, 0x16, 0x17
},
/* Low value shuffle used by trans4x4.
*/
{
0x08, 0x09, 0x0A, 0x0B, 0x18, 0x19, 0x1A, 0x1B,
0x0C, 0x0D, 0x0E, 0x0F, 0x1C, 0x1D, 0x1E, 0x1F
}
};
/**
* Fetch vertex attributes for 'count' vertices.
*/
static void generic_vertex_fetch(struct spu_vs_context *draw,
struct spu_exec_machine *machine,
const unsigned *elts,
unsigned count)
{
unsigned nr_attrs = draw->vertex_fetch.nr_attrs;
unsigned attr;
ASSERT(count <= 4);
#if DRAW_DBG
printf("SPU: %s count = %u, nr_attrs = %u\n",
__FUNCTION__, count, nr_attrs);
#endif
/* loop over vertex attributes (vertex shader inputs)
*/
for (attr = 0; attr < nr_attrs; attr++) {
const unsigned pitch = draw->vertex_fetch.pitch[attr];
const uint64_t src = draw->vertex_fetch.src_ptr[attr];
const spu_fetch_func fetch = (spu_fetch_func)
(draw->vertex_fetch.code + draw->vertex_fetch.code_offset[attr]);
unsigned i;
unsigned idx;
const unsigned bytes_per_entry = draw->vertex_fetch.size[attr];
const unsigned quads_per_entry = (bytes_per_entry + 15) / 16;
qword in[2 * 4] ALIGN16_ATTRIB;
/* Fetch four attributes for four vertices.
*/
idx = 0;
for (i = 0; i < count; i++) {
const uint64_t addr = src + (elts[i] * pitch);
#if DRAW_DBG
printf("SPU: fetching = 0x%llx\n", addr);
#endif
spu_dcache_fetch_unaligned(& in[idx], addr, bytes_per_entry);
idx += quads_per_entry;
}
/* Be nice and zero out any missing vertices.
*/
(void) memset(& in[idx], 0, (8 - idx) * sizeof(qword));
/* Convert all 4 vertices to vectors of float.
*/
(*fetch)(&machine->Inputs[attr].xyzw[0].q, in, fetch_shuffle_data);
}
}
void spu_update_vertex_fetch( struct spu_vs_context *draw )
{
draw->vertex_fetch.fetch_func = generic_vertex_fetch;
}
|
