1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 * SPU functions accessed by shaders.
41 #include <simdmath/exp2f4.h>
42 #include <simdmath/log2f4.h>
43 #include <simdmath/powf4.h>
45 #include "cell/common.h"
47 #include "spu_funcs.h"
48 #include "spu_texture.h"
51 /** For "return"-ing four vectors */
59 spu_cos(vector
float x
)
65 spu_sin(vector
float x
)
71 spu_pow(vector
float x
, vector
float y
)
77 spu_exp2(vector
float x
)
83 spu_log2(vector
float x
)
90 spu_tex_2d(vector
float s
, vector
float t
, vector
float r
, vector
float q
,
93 struct vec_4x4 colors
;
96 spu
.sample_texture_2d
[unit
](s
, t
, unit
, 0, 0, colors
.v
);
100 static struct vec_4x4
101 spu_tex_3d(vector
float s
, vector
float t
, vector
float r
, vector
float q
,
104 struct vec_4x4 colors
;
107 spu
.sample_texture_2d
[unit
](s
, t
, unit
, 0, 0, colors
.v
);
111 static struct vec_4x4
112 spu_tex_cube(vector
float s
, vector
float t
, vector
float r
, vector
float q
,
115 struct vec_4x4 colors
;
117 sample_texture_cube(s
, t
, r
, unit
, colors
.v
);
123 * Add named function to list of "exported" functions that will be
124 * made available to the PPU-hosted code generator.
127 export_func(struct cell_spu_function_info
*spu_functions
,
128 const char *name
, void *addr
)
130 uint n
= spu_functions
->num
;
131 ASSERT(strlen(name
) < 16);
132 strcpy(spu_functions
->names
[n
], name
);
133 spu_functions
->addrs
[n
] = (uint
) addr
;
134 spu_functions
->num
++;
135 ASSERT(spu_functions
->num
<= 16);
140 * Return info about the SPU's function to the PPU / main memory.
141 * The PPU needs to know the address of some SPU-side functions so
142 * that we can generate shader code with function calls.
145 return_function_info(void)
147 struct cell_spu_function_info funcs ALIGN16_ATTRIB
;
150 ASSERT(sizeof(funcs
) == 256); /* must be multiple of 16 bytes */
153 export_func(&funcs
, "spu_cos", &spu_cos
);
154 export_func(&funcs
, "spu_sin", &spu_sin
);
155 export_func(&funcs
, "spu_pow", &spu_pow
);
156 export_func(&funcs
, "spu_exp2", &spu_exp2
);
157 export_func(&funcs
, "spu_log2", &spu_log2
);
158 export_func(&funcs
, "spu_tex_2d", &spu_tex_2d
);
159 export_func(&funcs
, "spu_tex_3d", &spu_tex_3d
);
160 export_func(&funcs
, "spu_tex_cube", &spu_tex_cube
);
162 /* Send the function info back to the PPU / main memory */
163 mfc_put((void *) &funcs
, /* src in local store */
164 (unsigned int) spu
.init
.spu_functions
, /* dst in main memory */
165 sizeof(funcs
), /* bytes */
169 wait_on_mask(1 << tag
);