lp_bld_arit.h revision 3469715a8a171512cf9b528702e70393f01c6041 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28/**
29 * @file
30 * Helper arithmetic functions.
31 *
32 * @author Jose Fonseca <jfonseca@vmware.com>
33 */
34
35
36#ifndef LP_BLD_ARIT_H
37#define LP_BLD_ARIT_H
38
39
40#include "gallivm/lp_bld.h"
41
42
43struct lp_type;
44struct lp_build_context;
45
46
47/**
48 * Complement, i.e., 1 - a.
49 */
50LLVMValueRef
51lp_build_comp(struct lp_build_context *bld,
52              LLVMValueRef a);
53
54LLVMValueRef
55lp_build_add(struct lp_build_context *bld,
56             LLVMValueRef a,
57             LLVMValueRef b);
58
59LLVMValueRef
60lp_build_horizontal_add(struct lp_build_context *bld,
61                        LLVMValueRef a);
62
63LLVMValueRef
64lp_build_hadd_partial4(struct lp_build_context *bld,
65                       LLVMValueRef vectors[],
66                       unsigned num_vecs);
67
68LLVMValueRef
69lp_build_sub(struct lp_build_context *bld,
70             LLVMValueRef a,
71             LLVMValueRef b);
72
73LLVMValueRef
74lp_build_mul(struct lp_build_context *bld,
75             LLVMValueRef a,
76             LLVMValueRef b);
77
78LLVMValueRef
79lp_build_mul_imm(struct lp_build_context *bld,
80                 LLVMValueRef a,
81                 int b);
82
83LLVMValueRef
84lp_build_div(struct lp_build_context *bld,
85             LLVMValueRef a,
86             LLVMValueRef b);
87
88LLVMValueRef
89lp_build_lerp(struct lp_build_context *bld,
90              LLVMValueRef x,
91              LLVMValueRef v0,
92              LLVMValueRef v1);
93
94/**
95 * Bilinear interpolation.
96 *
97 * Values indices are in v_{yx}.
98 */
99LLVMValueRef
100lp_build_lerp_2d(struct lp_build_context *bld,
101                 LLVMValueRef x,
102                 LLVMValueRef y,
103                 LLVMValueRef v00,
104                 LLVMValueRef v01,
105                 LLVMValueRef v10,
106                 LLVMValueRef v11);
107
108LLVMValueRef
109lp_build_min(struct lp_build_context *bld,
110             LLVMValueRef a,
111             LLVMValueRef b);
112
113LLVMValueRef
114lp_build_max(struct lp_build_context *bld,
115             LLVMValueRef a,
116             LLVMValueRef b);
117
118LLVMValueRef
119lp_build_clamp(struct lp_build_context *bld,
120               LLVMValueRef a,
121               LLVMValueRef min,
122               LLVMValueRef max);
123
124LLVMValueRef
125lp_build_abs(struct lp_build_context *bld,
126             LLVMValueRef a);
127
128LLVMValueRef
129lp_build_negate(struct lp_build_context *bld,
130                LLVMValueRef a);
131
132LLVMValueRef
133lp_build_sgn(struct lp_build_context *bld,
134             LLVMValueRef a);
135
136LLVMValueRef
137lp_build_set_sign(struct lp_build_context *bld,
138                  LLVMValueRef a, LLVMValueRef sign);
139
140LLVMValueRef
141lp_build_int_to_float(struct lp_build_context *bld,
142                      LLVMValueRef a);
143
144LLVMValueRef
145lp_build_round(struct lp_build_context *bld,
146               LLVMValueRef a);
147
148LLVMValueRef
149lp_build_floor(struct lp_build_context *bld,
150               LLVMValueRef a);
151
152LLVMValueRef
153lp_build_ceil(struct lp_build_context *bld,
154              LLVMValueRef a);
155
156LLVMValueRef
157lp_build_trunc(struct lp_build_context *bld,
158               LLVMValueRef a);
159
160LLVMValueRef
161lp_build_fract(struct lp_build_context *bld,
162               LLVMValueRef a);
163
164LLVMValueRef
165lp_build_fract_safe(struct lp_build_context *bld,
166                    LLVMValueRef a);
167
168LLVMValueRef
169lp_build_ifloor(struct lp_build_context *bld,
170                LLVMValueRef a);
171LLVMValueRef
172lp_build_iceil(struct lp_build_context *bld,
173               LLVMValueRef a);
174
175LLVMValueRef
176lp_build_iround(struct lp_build_context *bld,
177                LLVMValueRef a);
178
179LLVMValueRef
180lp_build_itrunc(struct lp_build_context *bld,
181                LLVMValueRef a);
182
183void
184lp_build_ifloor_fract(struct lp_build_context *bld,
185                      LLVMValueRef a,
186                      LLVMValueRef *out_ipart,
187                      LLVMValueRef *out_fpart);
188
189void
190lp_build_ifloor_fract_safe(struct lp_build_context *bld,
191                           LLVMValueRef a,
192                           LLVMValueRef *out_ipart,
193                           LLVMValueRef *out_fpart);
194
195LLVMValueRef
196lp_build_sqrt(struct lp_build_context *bld,
197              LLVMValueRef a);
198
199LLVMValueRef
200lp_build_rcp(struct lp_build_context *bld,
201             LLVMValueRef a);
202
203LLVMValueRef
204lp_build_rsqrt(struct lp_build_context *bld,
205               LLVMValueRef a);
206
207LLVMValueRef
208lp_build_cos(struct lp_build_context *bld,
209             LLVMValueRef a);
210
211LLVMValueRef
212lp_build_sin(struct lp_build_context *bld,
213             LLVMValueRef a);
214
215LLVMValueRef
216lp_build_pow(struct lp_build_context *bld,
217             LLVMValueRef a,
218             LLVMValueRef b);
219
220LLVMValueRef
221lp_build_exp(struct lp_build_context *bld,
222             LLVMValueRef a);
223
224LLVMValueRef
225lp_build_log(struct lp_build_context *bld,
226             LLVMValueRef a);
227
228LLVMValueRef
229lp_build_exp2(struct lp_build_context *bld,
230              LLVMValueRef a);
231
232LLVMValueRef
233lp_build_extract_exponent(struct lp_build_context *bld,
234                          LLVMValueRef x,
235                          int bias);
236
237LLVMValueRef
238lp_build_extract_mantissa(struct lp_build_context *bld,
239                          LLVMValueRef x);
240
241LLVMValueRef
242lp_build_log2(struct lp_build_context *bld,
243              LLVMValueRef a);
244
245LLVMValueRef
246lp_build_fast_log2(struct lp_build_context *bld,
247                   LLVMValueRef a);
248
249LLVMValueRef
250lp_build_ilog2(struct lp_build_context *bld,
251               LLVMValueRef x);
252
253void
254lp_build_exp2_approx(struct lp_build_context *bld,
255                     LLVMValueRef x,
256                     LLVMValueRef *p_exp2_int_part,
257                     LLVMValueRef *p_frac_part,
258                     LLVMValueRef *p_exp2);
259
260void
261lp_build_log2_approx(struct lp_build_context *bld,
262                     LLVMValueRef x,
263                     LLVMValueRef *p_exp,
264                     LLVMValueRef *p_floor_log2,
265                     LLVMValueRef *p_log2);
266
267LLVMValueRef
268lp_build_mod(struct lp_build_context *bld,
269             LLVMValueRef x,
270             LLVMValueRef y);
271
272#endif /* !LP_BLD_ARIT_H */
273