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
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
#include "sp_context.h"
#include "sp_state.h"
#include "sp_fs.h"
#include "sp_headers.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "pipe/p_util.h"
#include "pipe/p_inlines.h"
#include "pipe/tgsi/exec/tgsi_exec.h"
#include "pipe/tgsi/exec/tgsi_sse2.h"
#if defined(__i386__) || defined(__386__)
#include "x86/rtasm/x86sse.h"
/* Surely this should be defined somewhere in a tgsi header:
*/
typedef void (XSTDCALL *codegen_function)(
const struct tgsi_exec_vector *input,
struct tgsi_exec_vector *output,
float (*constant)[4],
struct tgsi_exec_vector *temporary,
const struct tgsi_interp_coef *coef
//, const struct tgsi_exec_vector *quadPos
);
struct sp_sse_fragment_shader {
struct sp_fragment_shader base;
struct x86_function sse2_program;
codegen_function func;
};
/**
* Compute quad X,Y,Z,W for the four fragments in a quad.
*
* This should really be part of the compiled shader.
*/
void
sp_setup_pos_vector(const struct tgsi_interp_coef *coef,
float x, float y,
struct tgsi_exec_vector *quadpos)
{
uint chan;
/* do X */
quadpos->xyzw[0].f[0] = x;
quadpos->xyzw[0].f[1] = x + 1;
quadpos->xyzw[0].f[2] = x;
quadpos->xyzw[0].f[3] = x + 1;
/* do Y */
quadpos->xyzw[1].f[0] = y;
quadpos->xyzw[1].f[1] = y;
quadpos->xyzw[1].f[2] = y + 1;
quadpos->xyzw[1].f[3] = y + 1;
/* do Z and W for all fragments in the quad */
for (chan = 2; chan < 4; chan++) {
const float dadx = coef->dadx[chan];
const float dady = coef->dady[chan];
const float a0 = coef->a0[chan] + dadx * x + dady * y;
quadpos->xyzw[chan].f[0] = a0;
quadpos->xyzw[chan].f[1] = a0 + dadx;
quadpos->xyzw[chan].f[2] = a0 + dady;
quadpos->xyzw[chan].f[3] = a0 + dadx + dady;
}
}
static void
sse_prepare( struct sp_fragment_shader *base,
struct tgsi_exec_machine *machine,
struct tgsi_sampler *samplers )
{
}
/* TODO: codegenerate the whole run function, skip this wrapper.
* TODO: break dependency on tgsi_exec_machine struct
* TODO: push Position calculation into the generated shader
* TODO: process >1 quad at a time
*/
static unsigned
sse_run( struct sp_fragment_shader *base,
struct tgsi_exec_machine *machine,
struct quad_header *quad )
{
struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base;
/* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */
sp_setup_pos_vector(quad->posCoef,
(float)quad->x0, (float)quad->y0,
machine->Temps);
shader->func( machine->Inputs,
machine->Outputs,
machine->Consts,
machine->Temps,
machine->InterpCoefs
// , &machine->QuadPos
);
return ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]);
}
static void
sse_delete( struct sp_fragment_shader *base )
{
struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base;
x86_release_func( &shader->sse2_program );
FREE(shader);
}
struct sp_fragment_shader *
softpipe_create_fs_sse(struct softpipe_context *softpipe,
const struct pipe_shader_state *templ)
{
struct sp_sse_fragment_shader *shader;
if (!softpipe->use_sse)
return NULL;
shader = CALLOC_STRUCT(sp_sse_fragment_shader);
if (!shader)
return NULL;
x86_init_func( &shader->sse2_program );
if (!tgsi_emit_sse2_fs( templ->tokens, &shader->sse2_program )) {
FREE(shader);
return NULL;
}
shader->func = (codegen_function) x86_get_func( &shader->sse2_program );
assert(shader->func);
shader->base.shader = *templ;
shader->base.prepare = sse_prepare;
shader->base.run = sse_run;
shader->base.delete = sse_delete;
return &shader->base;
}
#else
/* Maybe put this varient in the header file.
*/
struct sp_fragment_shader *
softpipe_create_fs_sse(struct softpipe_context *softpipe,
const struct pipe_shader_state *templ)
{
return NULL;
}
#endif
|