OLD | NEW |
| (Empty) |
1 /* vim: set ts=8 sw=8 noexpandtab: */ | |
2 // qcms | |
3 // Copyright (C) 2009 Mozilla Foundation | |
4 // Copyright (C) 1998-2007 Marti Maria | |
5 // | |
6 // Permission is hereby granted, free of charge, to any person obtaining | |
7 // a copy of this software and associated documentation files (the "Software"), | |
8 // to deal in the Software without restriction, including without limitation | |
9 // the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 // and/or sell copies of the Software, and to permit persons to whom the Softwar
e | |
11 // is furnished to do so, subject to the following conditions: | |
12 // | |
13 // The above copyright notice and this permission notice shall be included in | |
14 // all copies or substantial portions of the Software. | |
15 // | |
16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO | |
18 // THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |
20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |
21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
23 | |
24 #ifndef _QCMS_TRANSFORM_UTIL_H | |
25 #define _QCMS_TRANSFORM_UTIL_H | |
26 | |
27 #include <stdlib.h> | |
28 | |
29 #define CLU(table,x,y,z) table[(x*len + y*x_len + z*xy_len)*3] | |
30 | |
31 //XXX: could use a bettername | |
32 typedef uint16_t uint16_fract_t; | |
33 | |
34 float lut_interp_linear(double value, uint16_t *table, int length); | |
35 float lut_interp_linear_float(float value, float *table, int length); | |
36 uint16_t lut_interp_linear16(uint16_t input_value, uint16_t *table, int length); | |
37 | |
38 | |
39 static inline float lerp(float a, float b, float t) | |
40 { | |
41 return a*(1.f-t) + b*t; | |
42 } | |
43 | |
44 unsigned char clamp_u8(float v); | |
45 float clamp_float(float a); | |
46 | |
47 float u8Fixed8Number_to_float(uint16_t x); | |
48 | |
49 | |
50 float *build_input_gamma_table(struct curveType *TRC); | |
51 struct matrix build_colorant_matrix(qcms_profile *p); | |
52 void build_output_lut(struct curveType *trc, | |
53 uint16_t **output_gamma_lut, size_t *output_gamma_lut_leng
th); | |
54 | |
55 struct matrix matrix_invert(struct matrix mat); | |
56 qcms_bool compute_precache(struct curveType *trc, uint8_t *output); | |
57 | |
58 | |
59 #endif | |
OLD | NEW |