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
|
// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "Texture.ih"
#include "Texture2DShared.h"
OSPRAY_BEGIN_ISPC_NAMESPACE
SYCL_EXTERNAL vec4f Texture2D_get(
const uniform Texture *uniform self, const DifferentialGeometry &dg);
SYCL_EXTERNAL vec3f Texture2D_getNormal(
const uniform Texture *uniform self, const DifferentialGeometry &dg);
// XXX won't work with MIPmapping: clean implementation with clamping on integer
// coords needed then
inline vec2f clamp2edge(const uniform Texture2D *uniform self, const vec2f p)
{
const vec2f halfTexel = rcp(make_vec2f(self->size.x, self->size.y)) * 0.5f;
return clamp(p, halfTexel, 1.0f - halfTexel);
}
inline float get1f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg)
{
return get1f(&self->super, dg);
}
inline vec3f get3f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg)
{
return get3f(&self->super, dg);
}
inline vec4f get4f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg)
{
return get4f(&self->super, dg);
}
inline vec3f getNormal(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg)
{
return getNormal(&self->super, dg);
}
inline float get1f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg,
const varying float defaultValue)
{
return get1f(&self->super, dg, defaultValue);
}
inline vec3f get3f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg,
const varying vec3f defaultValue)
{
return get3f(&self->super, dg, defaultValue);
}
inline vec4f get4f(const uniform Texture2D *uniform self,
const varying DifferentialGeometry &dg,
const varying vec4f defaultValue)
{
return get4f(&self->super, dg, defaultValue);
}
#if 0 // crashes ISPC!
inline DifferentialGeometry dgFromTexCoord(const varying vec2f &c)
{
DifferentialGeometry dg;
dg.primID = -1;
dg.st = c;
return dg;
}
#else
inline void initDgFromTexCoord(DifferentialGeometry &dg, const varying vec2f &c)
{
dg.primID = -1;
dg.st = c;
dg.pixelFootprint = flt_min;
}
#endif
OSPRAY_END_ISPC_NAMESPACE
|
