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
|
/*
* Copyright 2011-2015 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "split/kernel_lamp_emission.h"
__kernel void kernel_ocl_path_trace_lamp_emission(
ccl_global char *globals,
ccl_constant KernelData *data,
ccl_global char *shader_data, /* Required for lamp emission */
ccl_global float3 *throughput_coop, /* Required for lamp emission */
PathRadiance *PathRadiance_coop, /* Required for lamp emission */
ccl_global Ray *Ray_coop, /* Required for lamp emission */
ccl_global PathState *PathState_coop, /* Required for lamp emission */
Intersection *Intersection_coop, /* Required for lamp emission */
ccl_global char *ray_state, /* Denotes the state of each ray */
int sw, int sh,
ccl_global int *Queue_data, /* Memory for queues */
ccl_global int *Queue_index, /* Tracks the number of elements in queues */
int queuesize, /* Size (capacity) of queues */
ccl_global char *use_queues_flag, /* Used to decide if this kernel should use
* queues to fetch ray index
*/
int parallel_samples) /* Number of samples to be processed in parallel */
{
int x = get_global_id(0);
int y = get_global_id(1);
/* We will empty this queue in this kernel. */
if(get_global_id(0) == 0 && get_global_id(1) == 0) {
Queue_index[QUEUE_ACTIVE_AND_REGENERATED_RAYS] = 0;
}
/* Fetch use_queues_flag. */
ccl_local char local_use_queues_flag;
if(get_local_id(0) == 0 && get_local_id(1) == 0) {
local_use_queues_flag = use_queues_flag[0];
}
barrier(CLK_LOCAL_MEM_FENCE);
int ray_index;
if(local_use_queues_flag) {
int thread_index = get_global_id(1) * get_global_size(0) + get_global_id(0);
ray_index = get_ray_index(thread_index,
QUEUE_ACTIVE_AND_REGENERATED_RAYS,
Queue_data,
queuesize,
1);
if(ray_index == QUEUE_EMPTY_SLOT) {
return;
}
} else {
if(x < (sw * parallel_samples) && y < sh){
ray_index = x + y * (sw * parallel_samples);
} else {
return;
}
}
kernel_lamp_emission(globals,
data,
shader_data,
throughput_coop,
PathRadiance_coop,
Ray_coop,
PathState_coop,
Intersection_coop,
ray_state,
sw, sh,
use_queues_flag,
parallel_samples,
ray_index);
}
|
