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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* Copyright 2011-2013 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.
*/
#ifdef WITH_OPENCL
#include "device/opencl/opencl.h"
#include "render/buffers.h"
#include "kernel/kernel_types.h"
#include "util/util_md5.h"
#include "util/util_path.h"
#include "util/util_time.h"
CCL_NAMESPACE_BEGIN
class OpenCLDeviceMegaKernel : public OpenCLDeviceBase
{
public:
OpenCLProgram path_trace_program;
OpenCLDeviceMegaKernel(DeviceInfo& info, Stats &stats, bool background_)
: OpenCLDeviceBase(info, stats, background_),
path_trace_program(this, "megakernel", "kernel.cl", "-D__COMPILE_ONLY_MEGAKERNEL__ ")
{
}
virtual bool show_samples() const {
return true;
}
virtual bool load_kernels(const DeviceRequestedFeatures& /*requested_features*/,
vector<OpenCLProgram*> &programs)
{
path_trace_program.add_kernel(ustring("path_trace"));
programs.push_back(&path_trace_program);
return true;
}
~OpenCLDeviceMegaKernel()
{
task_pool.stop();
path_trace_program.release();
}
void path_trace(RenderTile& rtile, int sample)
{
scoped_timer timer(&rtile.buffers->render_time);
/* Cast arguments to cl types. */
cl_mem d_data = CL_MEM_PTR(const_mem_map["__data"]->device_pointer);
cl_mem d_buffer = CL_MEM_PTR(rtile.buffer);
cl_int d_x = rtile.x;
cl_int d_y = rtile.y;
cl_int d_w = rtile.w;
cl_int d_h = rtile.h;
cl_int d_offset = rtile.offset;
cl_int d_stride = rtile.stride;
/* Sample arguments. */
cl_int d_sample = sample;
cl_kernel ckPathTraceKernel = path_trace_program(ustring("path_trace"));
cl_uint start_arg_index =
kernel_set_args(ckPathTraceKernel,
0,
d_data,
d_buffer);
set_kernel_arg_buffers(ckPathTraceKernel, &start_arg_index);
start_arg_index += kernel_set_args(ckPathTraceKernel,
start_arg_index,
d_sample,
d_x,
d_y,
d_w,
d_h,
d_offset,
d_stride);
enqueue_kernel(ckPathTraceKernel, d_w, d_h);
}
void thread_run(DeviceTask *task)
{
if(task->type == DeviceTask::FILM_CONVERT) {
film_convert(*task, task->buffer, task->rgba_byte, task->rgba_half);
}
else if(task->type == DeviceTask::SHADER) {
shader(*task);
}
else if(task->type == DeviceTask::RENDER) {
RenderTile tile;
DenoisingTask denoising(this, *task);
/* Keep rendering tiles until done. */
while(task->acquire_tile(this, tile)) {
if(tile.task == RenderTile::PATH_TRACE) {
int start_sample = tile.start_sample;
int end_sample = tile.start_sample + tile.num_samples;
for(int sample = start_sample; sample < end_sample; sample++) {
if(task->get_cancel()) {
if(task->need_finish_queue == false)
break;
}
path_trace(tile, sample);
tile.sample = sample + 1;
task->update_progress(&tile, tile.w*tile.h);
}
/* Complete kernel execution before release tile */
/* This helps in multi-device render;
* The device that reaches the critical-section function
* release_tile waits (stalling other devices from entering
* release_tile) for all kernels to complete. If device1 (a
* slow-render device) reaches release_tile first then it would
* stall device2 (a fast-render device) from proceeding to render
* next tile.
*/
clFinish(cqCommandQueue);
}
else if(tile.task == RenderTile::DENOISE) {
tile.sample = tile.start_sample + tile.num_samples;
denoise(tile, denoising);
task->update_progress(&tile, tile.w*tile.h);
}
task->release_tile(tile);
}
}
}
bool is_split_kernel()
{
return false;
}
};
Device *opencl_create_mega_device(DeviceInfo& info, Stats& stats, bool background)
{
return new OpenCLDeviceMegaKernel(info, stats, background);
}
CCL_NAMESPACE_END
#endif
|
