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
|
/*
* Copyright 2011, Blender Foundation.
*
* 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.
*/
/* Constant Globals */
#ifdef __KERNEL_CPU__
#ifdef __OSL__
#include "osl_globals.h"
#endif
#endif
CCL_NAMESPACE_BEGIN
/* On the CPU, we pass along the struct KernelGlobals to nearly everywhere in
* the kernel, to access constant data. These are all stored as "textures", but
* these are really just standard arrays. We can't use actually globals because
* multiple renders may be running inside the same process. */
#ifdef __KERNEL_CPU__
#define MAX_BYTE_IMAGES 512
#define MAX_FLOAT_IMAGES 5
typedef struct KernelGlobals {
texture_image_uchar4 texture_byte_images[MAX_BYTE_IMAGES];
texture_image_float4 texture_float_images[MAX_FLOAT_IMAGES];
#define KERNEL_TEX(type, ttype, name) ttype name;
#define KERNEL_IMAGE_TEX(type, ttype, name)
#include "kernel_textures.h"
KernelData __data;
#ifdef __OSL__
/* On the CPU, we also have the OSL globals here. Most data structures are shared
* with SVM, the difference is in the shaders and object/mesh attributes. */
OSLGlobals osl;
#endif
} KernelGlobals;
#endif
/* For CUDA, constant memory textures must be globals, so we can't put them
* into a struct. As a result we don't actually use this struct and use actual
* globals and simply pass along a NULL pointer everywhere, which we hope gets
* optimized out. */
#ifdef __KERNEL_CUDA__
__constant__ KernelData __data;
typedef struct KernelGlobals {} KernelGlobals;
#define KERNEL_TEX(type, ttype, name) ttype name;
#define KERNEL_IMAGE_TEX(type, ttype, name) ttype name;
#include "kernel_textures.h"
#endif
/* OpenCL */
#ifdef __KERNEL_OPENCL__
typedef struct KernelGlobals {
__constant KernelData *data;
#define KERNEL_TEX(type, ttype, name) \
__global type *name;
#include "kernel_textures.h"
} KernelGlobals;
#endif
CCL_NAMESPACE_END
|
