-
Notifications
You must be signed in to change notification settings - Fork 19
/
xregRayCastSurRenderOCL.h
89 lines (73 loc) · 3.09 KB
/
xregRayCastSurRenderOCL.h
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
/*
* MIT License
*
* Copyright (c) 2020 Robert Grupp
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef XREGRAYCASTSURRENDEROCL_H_
#define XREGRAYCASTSURRENDEROCL_H_
#include "xregRayCastBaseOCL.h"
namespace xreg
{
/// \brief Ray casting surface rendering using OpenCL.
///
/// All computations on the device are with single precision floating point.
class RayCasterSurRenderOCL : public RayCasterOCL, public RayCasterSurRenderParamInterface
{
public:
/// \brief Default constructor, chooses a default device, creates a new
/// context and command queue.
RayCasterSurRenderOCL();
/// \brief Constructor specifying a device to use, but creates a new context
/// and command queue.
explicit RayCasterSurRenderOCL(const boost::compute::device& dev);
/// \brief Constructor specifying a specific context and command queue to use
RayCasterSurRenderOCL(const boost::compute::context& ctx, const boost::compute::command_queue& queue);
/// \brief Allocate resources required for computing each ray cast.
///
/// The memory buffers are allocated by the parent class, this class only
/// needs to create the device kernel.
void allocate_resources() override;
/// \brief Perform each ray cast.
///
/// TODO: info
void compute(const size_type vol_idx = 0) override;
/// \brief Arguments that will be passed to the GPU kernel
///
/// This is only public, so it may be easily wrapped into an OpenCL compatible
/// struct.
struct RayCastSurRenderArgs
{
boost::compute::float_ thresh;
boost::compute::float_ pad1; // un-used
boost::compute::ulong_ num_backtracking_steps;
// Phong illumination model params:
boost::compute::float_ ambient_reflection_ratio;
boost::compute::float_ diffuse_reflection_ratio;
boost::compute::float_ specular_reflection_ratio;
boost::compute::float_ alpha_shininess; // larger -> less shiny
};
private:
boost::compute::kernel dev_kernel1_;
boost::compute::kernel dev_kernel2_;
boost::compute::vector<boost::compute::float8_> step_vecs_and_intersect_pts_wrt_itk_idx_dev_;
};
} // xreg
#endif