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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "pipe/p_util.h"
#include "draw/draw_context.h"
#include "draw/draw_private.h"
#include "draw/draw_pt.h"
#define CACHE_MAX 32
#define FETCH_MAX 128
#define DRAW_MAX (16*1024)
struct vcache_frontend {
struct draw_pt_front_end base;
struct draw_context *draw;
unsigned in[CACHE_MAX];
ushort out[CACHE_MAX];
ushort draw_elts[DRAW_MAX];
unsigned fetch_elts[FETCH_MAX];
unsigned draw_count;
unsigned fetch_count;
struct draw_pt_middle_end *middle;
unsigned input_prim;
unsigned output_prim;
};
static void vcache_flush( struct vcache_frontend *vcache )
{
if (vcache->draw_count) {
vcache->middle->run( vcache->middle,
vcache->fetch_elts,
vcache->fetch_count,
vcache->draw_elts,
vcache->draw_count );
}
memset(vcache->in, ~0, sizeof(vcache->in));
vcache->fetch_count = 0;
vcache->draw_count = 0;
}
static void vcache_check_flush( struct vcache_frontend *vcache )
{
if ( vcache->draw_count + 6 >= DRAW_MAX ||
vcache->fetch_count + 4 >= FETCH_MAX )
{
vcache_flush( vcache );
}
}
static INLINE void vcache_elt( struct vcache_frontend *vcache,
unsigned felt,
ushort flags )
{
unsigned idx = felt % CACHE_MAX;
if (vcache->in[idx] != felt) {
assert(vcache->fetch_count < FETCH_MAX);
vcache->in[idx] = felt;
vcache->out[idx] = (ushort)vcache->fetch_count;
vcache->fetch_elts[vcache->fetch_count++] = felt;
}
vcache->draw_elts[vcache->draw_count++] = vcache->out[idx] | flags;
}
static void vcache_triangle( struct vcache_frontend *vcache,
unsigned i0,
unsigned i1,
unsigned i2 )
{
vcache_elt(vcache, i0, 0);
vcache_elt(vcache, i1, 0);
vcache_elt(vcache, i2, 0);
vcache_check_flush(vcache);
}
static void vcache_triangle_flags( struct vcache_frontend *vcache,
ushort flags,
unsigned i0,
unsigned i1,
unsigned i2 )
{
vcache_elt(vcache, i0, flags);
vcache_elt(vcache, i1, 0);
vcache_elt(vcache, i2, 0);
vcache_check_flush(vcache);
}
static void vcache_line( struct vcache_frontend *vcache,
unsigned i0,
unsigned i1 )
{
vcache_elt(vcache, i0, 0);
vcache_elt(vcache, i1, 0);
vcache_check_flush(vcache);
}
static void vcache_line_flags( struct vcache_frontend *vcache,
ushort flags,
unsigned i0,
unsigned i1 )
{
vcache_elt(vcache, i0, flags);
vcache_elt(vcache, i1, 0);
vcache_check_flush(vcache);
}
static void vcache_point( struct vcache_frontend *vcache,
unsigned i0 )
{
vcache_elt(vcache, i0, 0);
vcache_check_flush(vcache);
}
static void vcache_quad( struct vcache_frontend *vcache,
unsigned i0,
unsigned i1,
unsigned i2,
unsigned i3 )
{
vcache_triangle( vcache, i0, i1, i3 );
vcache_triangle( vcache, i1, i2, i3 );
}
static void vcache_ef_quad( struct vcache_frontend *vcache,
unsigned i0,
unsigned i1,
unsigned i2,
unsigned i3 )
{
vcache_triangle_flags( vcache,
( DRAW_PIPE_RESET_STIPPLE |
DRAW_PIPE_EDGE_FLAG_0 |
DRAW_PIPE_EDGE_FLAG_2 ),
i0, i1, i3 );
vcache_triangle_flags( vcache,
( DRAW_PIPE_EDGE_FLAG_0 |
DRAW_PIPE_EDGE_FLAG_1 ),
i1, i2, i3 );
}
/* At least for now, we're back to using a template include file for
* this. The two paths aren't too different though - it may be
* possible to reunify them.
*/
#define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle_flags(vc,flags,i0,i1,i2)
#define QUAD(vc,i0,i1,i2,i3) vcache_ef_quad(vc,i0,i1,i2,i3)
#define LINE(vc,flags,i0,i1) vcache_line_flags(vc,flags,i0,i1)
#define POINT(vc,i0) vcache_point(vc,i0)
#define FUNC vcache_run_extras
#include "draw_pt_vcache_tmp.h"
#define TRIANGLE(vc,flags,i0,i1,i2) vcache_triangle(vc,i0,i1,i2)
#define QUAD(vc,i0,i1,i2,i3) vcache_quad(vc,i0,i1,i2,i3)
#define LINE(vc,flags,i0,i1) vcache_line(vc,i0,i1)
#define POINT(vc,i0) vcache_point(vc,i0)
#define FUNC vcache_run
#include "draw_pt_vcache_tmp.h"
static void vcache_prepare( struct draw_pt_front_end *frontend,
unsigned prim,
struct draw_pt_middle_end *middle,
unsigned opt )
{
struct vcache_frontend *vcache = (struct vcache_frontend *)frontend;
if (opt & PT_PIPELINE)
{
vcache->base.run = vcache_run_extras;
}
else
{
vcache->base.run = vcache_run;
}
vcache->input_prim = prim;
vcache->output_prim = draw_pt_reduced_prim(prim);
vcache->middle = middle;
middle->prepare( middle, vcache->output_prim, opt );
}
static void vcache_finish( struct draw_pt_front_end *frontend )
{
struct vcache_frontend *vcache = (struct vcache_frontend *)frontend;
vcache->middle->finish( vcache->middle );
vcache->middle = NULL;
}
static void vcache_destroy( struct draw_pt_front_end *frontend )
{
FREE(frontend);
}
struct draw_pt_front_end *draw_pt_vcache( struct draw_context *draw )
{
struct vcache_frontend *vcache = CALLOC_STRUCT( vcache_frontend );
if (vcache == NULL)
return NULL;
vcache->base.prepare = vcache_prepare;
vcache->base.run = NULL;
vcache->base.finish = vcache_finish;
vcache->base.destroy = vcache_destroy;
vcache->draw = draw;
memset(vcache->in, ~0, sizeof(vcache->in));
return &vcache->base;
}
|
