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author | Alexander Romanov <a.romanov@blend4web.com> | 2017-04-14 18:13:44 +0300 |
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committer | Alexander Romanov <a.romanov@blend4web.com> | 2017-04-14 18:15:57 +0300 |
commit | 78b5d66af8e29ddfd234fb07bd36be785702901e (patch) | |
tree | 0228aec9133f4045f196b04fbb51e5f8318b2ec4 /source/blender/blenlib | |
parent | 6fc7521adeec11fa9e68f77a30924d5ff05819a4 (diff) |
Object Info node support for GLSL mode and the internal render
Object Info node can be useful to give some variation to a single material assigned to multiple instances. This patch adds support for Viewport and BI.
{F499530}
Example: {F499528}
Reviewers: merwin, brecht, dfelinto
Reviewed By: brecht
Subscribers: duarteframos, fclem, homyachetser, Evgeny_Rodygin, AlexKowel, yurikovelenov
Differential Revision: https://developer.blender.org/D2425
Diffstat (limited to 'source/blender/blenlib')
-rw-r--r-- | source/blender/blenlib/BLI_hash.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_hash.h b/source/blender/blenlib/BLI_hash.h new file mode 100644 index 00000000000..551143f5d72 --- /dev/null +++ b/source/blender/blenlib/BLI_hash.h @@ -0,0 +1,66 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#ifndef __BLI_HASH_H__ +#define __BLI_HASH_H__ + +/** \file BLI_hash.h + * \ingroup bli + */ + +static inline unsigned int BLI_hash_int_2d(unsigned int kx, unsigned int ky) +{ +#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k)))) + + unsigned int a, b, c; + + a = b = c = 0xdeadbeef + (2 << 2) + 13; + a += kx; + b += ky; + + c ^= b; c -= rot(b,14); + a ^= c; a -= rot(c,11); + b ^= a; b -= rot(a,25); + c ^= b; c -= rot(b,16); + a ^= c; a -= rot(c,4); + b ^= a; b -= rot(a,14); + c ^= b; c -= rot(b,24); + + return c; + +#undef rot +} + +static inline unsigned int BLI_hash_string(const char *str) +{ + unsigned int i = 0, c; + + while((c = *str++)) + i = i * 37 + c; + + return i; +} + +static inline unsigned int BLI_hash_int(unsigned int k) +{ + return BLI_hash_int_2d(k, 0); +} + +#endif // __BLI_HASH_H__ |