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
|
/**************************************************************************
*
* Copyright 2003 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.
*
**************************************************************************/
#ifndef I915_FPC_H
#define I915_FPC_H
#include "i915_context.h"
#include "i915_reg.h"
#define I915_PROGRAM_SIZE 192
/**
* Program translation state
*/
struct i915_fp_compile {
struct i915_fragment_shader *shader; /* the shader we're compiling */
boolean used_constants[I915_MAX_CONSTANT];
/** maps TGSI immediate index to constant slot */
uint num_immediates;
uint immediates_map[I915_MAX_CONSTANT];
float immediates[I915_MAX_CONSTANT][4];
boolean first_instruction;
uint declarations[I915_PROGRAM_SIZE];
uint program[I915_PROGRAM_SIZE];
uint *csr; /**< Cursor, points into program. */
uint *decl; /**< Cursor, points into declarations. */
uint decl_s; /**< flags for which s regs need to be decl'd */
uint decl_t; /**< flags for which t regs need to be decl'd */
uint temp_flag; /**< Tracks temporary regs which are in use */
uint utemp_flag; /**< Tracks TYPE_U temporary regs which are in use */
uint nr_tex_indirect;
uint nr_tex_insn;
uint nr_alu_insn;
uint nr_decl_insn;
boolean error; /**< Set if i915_program_error() is called */
uint wpos_tex;
uint NumNativeInstructions;
uint NumNativeAluInstructions;
uint NumNativeTexInstructions;
uint NumNativeTexIndirections;
};
/* Having zero and one in here makes the definition of swizzle a lot
* easier.
*/
#define UREG_TYPE_SHIFT 29
#define UREG_NR_SHIFT 24
#define UREG_CHANNEL_X_NEGATE_SHIFT 23
#define UREG_CHANNEL_X_SHIFT 20
#define UREG_CHANNEL_Y_NEGATE_SHIFT 19
#define UREG_CHANNEL_Y_SHIFT 16
#define UREG_CHANNEL_Z_NEGATE_SHIFT 15
#define UREG_CHANNEL_Z_SHIFT 12
#define UREG_CHANNEL_W_NEGATE_SHIFT 11
#define UREG_CHANNEL_W_SHIFT 8
#define UREG_CHANNEL_ZERO_NEGATE_MBZ 5
#define UREG_CHANNEL_ZERO_SHIFT 4
#define UREG_CHANNEL_ONE_NEGATE_MBZ 1
#define UREG_CHANNEL_ONE_SHIFT 0
#define UREG_BAD 0xffffffff /* not a valid ureg */
#define X SRC_X
#define Y SRC_Y
#define Z SRC_Z
#define W SRC_W
#define ZERO SRC_ZERO
#define ONE SRC_ONE
/* Construct a ureg:
*/
#define UREG( type, nr ) (((type)<< UREG_TYPE_SHIFT) | \
((nr) << UREG_NR_SHIFT) | \
(X << UREG_CHANNEL_X_SHIFT) | \
(Y << UREG_CHANNEL_Y_SHIFT) | \
(Z << UREG_CHANNEL_Z_SHIFT) | \
(W << UREG_CHANNEL_W_SHIFT) | \
(ZERO << UREG_CHANNEL_ZERO_SHIFT) | \
(ONE << UREG_CHANNEL_ONE_SHIFT))
#define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20))
#define CHANNEL_SRC( src, channel ) (src>>(channel*4))
#define GET_UREG_TYPE(reg) (((reg)>>UREG_TYPE_SHIFT)®_TYPE_MASK)
#define GET_UREG_NR(reg) (((reg)>>UREG_NR_SHIFT)®_NR_MASK)
#define UREG_XYZW_CHANNEL_MASK 0x00ffff00
/* One neat thing about the UREG representation:
*/
static INLINE int
swizzle(int reg, uint x, uint y, uint z, uint w)
{
assert(x <= SRC_ONE);
assert(y <= SRC_ONE);
assert(z <= SRC_ONE);
assert(w <= SRC_ONE);
return ((reg & ~UREG_XYZW_CHANNEL_MASK) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, x), 0) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, y), 1) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, z), 2) |
CHANNEL_SRC(GET_CHANNEL_SRC(reg, w), 3));
}
/***********************************************************************
* Public interface for the compiler
*/
extern void
i915_translate_fragment_program( struct i915_context *i915,
struct i915_fragment_shader *fs);
extern uint i915_get_temp(struct i915_fp_compile *p);
extern uint i915_get_utemp(struct i915_fp_compile *p);
extern void i915_release_utemps(struct i915_fp_compile *p);
extern uint i915_emit_texld(struct i915_fp_compile *p,
uint dest,
uint destmask,
uint sampler, uint coord, uint op);
extern uint i915_emit_arith(struct i915_fp_compile *p,
uint op,
uint dest,
uint mask,
uint saturate,
uint src0, uint src1, uint src2);
extern uint i915_emit_decl(struct i915_fp_compile *p,
uint type, uint nr, uint d0_flags);
extern uint i915_emit_const1f(struct i915_fp_compile *p, float c0);
extern uint i915_emit_const2f(struct i915_fp_compile *p,
float c0, float c1);
extern uint i915_emit_const4fv(struct i915_fp_compile *p,
const float * c);
extern uint i915_emit_const4f(struct i915_fp_compile *p,
float c0, float c1,
float c2, float c3);
/*======================================================================
* i915_fpc_debug.c
*/
extern void i915_disassemble_program(const uint * program, uint sz);
/*======================================================================
* i915_fpc_translate.c
*/
extern void
i915_program_error(struct i915_fp_compile *p, const char *msg, ...);
#endif
|
