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
|
/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
develop this 3D driver.
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, sublicense, 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 NONINFRINGEMENT.
IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 "macros.h"
#include "brw_context.h"
#include "brw_vs.h"
/* Component is active if it may diverge from [0,0,0,1]. Undef values
* are promoted to [0,0,0,1] for the purposes of this analysis.
*/
struct tracker {
GLboolean twoside;
GLubyte active[PROGRAM_OUTPUT+1][128];
GLuint size_masks[4];
};
static void set_active_component( struct tracker *t,
GLuint file,
GLuint index,
GLubyte active )
{
switch (file) {
case PROGRAM_TEMPORARY:
case PROGRAM_INPUT:
case PROGRAM_OUTPUT:
t->active[file][index] |= active;
default:
break;
}
}
static void set_active( struct tracker *t,
struct prog_dst_register dst,
GLuint active )
{
set_active_component( t, dst.File, dst.Index, active & dst.WriteMask );
}
static GLubyte get_active_component( struct tracker *t,
GLuint file,
GLuint index,
GLuint component,
GLubyte swz )
{
switch (swz) {
case SWIZZLE_ZERO:
return component < 3 ? 0 : (1<<component);
case SWIZZLE_ONE:
return component == 3 ? 0 : (1<<component);
default:
switch (file) {
case PROGRAM_TEMPORARY:
case PROGRAM_INPUT:
case PROGRAM_OUTPUT:
return t->active[file][index] & (1<<component);
default:
return 1 << component;
}
}
}
static GLubyte get_active( struct tracker *t,
struct prog_src_register src )
{
GLuint i;
GLubyte active = src.NegateBase; /* NOTE! */
if (src.RelAddr)
return 0xf;
for (i = 0; i < 4; i++)
active |= get_active_component(t, src.File, src.Index, i,
GET_SWZ(src.Swizzle, i));
return active;
}
static GLubyte get_output_size( struct tracker *t,
GLuint idx )
{
GLubyte active = t->active[PROGRAM_OUTPUT][idx];
if (active & (1<<3)) return 4;
if (active & (1<<2)) return 3;
if (active & (1<<1)) return 2;
if (active & (1<<0)) return 1;
return 0;
}
/* Note the potential copying that occurs in the setup program:
*/
static void calc_sizes( struct tracker *t )
{
GLuint i;
if (t->twoside) {
t->active[PROGRAM_OUTPUT][VERT_RESULT_COL0] |=
t->active[PROGRAM_OUTPUT][VERT_RESULT_BFC0];
t->active[PROGRAM_OUTPUT][VERT_RESULT_COL1] |=
t->active[PROGRAM_OUTPUT][VERT_RESULT_BFC1];
}
for (i = 0; i < FRAG_ATTRIB_MAX; i++) {
switch (get_output_size(t, i)) {
case 4: t->size_masks[4-1] |= 1<<i;
case 3: t->size_masks[3-1] |= 1<<i;
case 2: t->size_masks[2-1] |= 1<<i;
case 1: t->size_masks[1-1] |= 1<<i;
break;
}
}
}
static GLubyte szflag[4+1] = {
0,
0x1,
0x3,
0x7,
0xf
};
/* Pull a size out of the packed array:
*/
static GLuint get_input_size(struct brw_context *brw,
GLuint attr)
{
GLuint sizes_dword = brw->vb.info.sizes[attr/16];
GLuint sizes_bits = (sizes_dword>>((attr%16)*2)) & 0x3;
return sizes_bits + 1;
/* return brw->vb.inputs[attr].glarray->Size; */
}
/* Calculate sizes of vertex program outputs. Size is the largest
* component index which might vary from [0,0,0,1]
*/
static int calc_wm_input_sizes( struct brw_context *brw )
{
/* BRW_NEW_VERTEX_PROGRAM */
struct brw_vertex_program *vp =
(struct brw_vertex_program *)brw->vertex_program;
/* BRW_NEW_INPUT_DIMENSIONS */
struct tracker t;
GLuint insn;
GLuint i;
memset(&t, 0, sizeof(t));
/* _NEW_LIGHT */
if (brw->attribs.Light->Model.TwoSide)
t.twoside = 1;
for (i = 0; i < VERT_ATTRIB_MAX; i++)
if (vp->program.Base.InputsRead & (1<<i))
set_active_component(&t, PROGRAM_INPUT, i,
szflag[get_input_size(brw, i)]);
for (insn = 0; insn < vp->program.Base.NumInstructions; insn++) {
struct prog_instruction *inst = &vp->program.Base.Instructions[insn];
switch (inst->Opcode) {
case OPCODE_ARL:
break;
case OPCODE_MOV:
set_active(&t, inst->DstReg, get_active(&t, inst->SrcReg[0]));
break;
default:
set_active(&t, inst->DstReg, 0xf);
break;
}
}
calc_sizes(&t);
if (memcmp(brw->wm.input_size_masks, t.size_masks, sizeof(t.size_masks)) != 0) {
memcpy(brw->wm.input_size_masks, t.size_masks, sizeof(t.size_masks));
brw->state.dirty.brw |= BRW_NEW_WM_INPUT_DIMENSIONS;
}
return 0;
}
const struct brw_tracked_state brw_wm_input_sizes = {
.dirty = {
.mesa = _NEW_LIGHT,
.brw = BRW_NEW_VERTEX_PROGRAM | BRW_NEW_INPUT_DIMENSIONS,
.cache = 0
},
.prepare = calc_wm_input_sizes
};
|
