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
|
/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrTextureAccess.h"
#include "GrColor.h"
#include "GrTexture.h"
GrTextureAccess::GrTextureAccess() {
#if GR_DEBUG
memcpy(fSwizzle, "void", 5);
fSwizzleMask = 0xbeeffeed;
#endif
}
GrTextureAccess::GrTextureAccess(GrTexture* texture, const GrTextureParams& params) {
this->reset(texture, params);
}
GrTextureAccess::GrTextureAccess(GrTexture* texture,
bool bilerp,
SkShader::TileMode tileXAndY) {
this->reset(texture, bilerp, tileXAndY);
}
GrTextureAccess::GrTextureAccess(GrTexture* texture,
const char* swizzle,
const GrTextureParams& params) {
this->reset(texture, swizzle, params);
}
GrTextureAccess::GrTextureAccess(GrTexture* texture,
const char* swizzle,
bool bilerp,
SkShader::TileMode tileXAndY) {
this->reset(texture, swizzle, bilerp, tileXAndY);
}
void GrTextureAccess::reset(GrTexture* texture,
const char* swizzle,
const GrTextureParams& params) {
GrAssert(NULL != texture);
GrAssert(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
fParams = params;
fTexture.reset(SkRef(texture));
this->setSwizzle(swizzle);
}
void GrTextureAccess::reset(GrTexture* texture,
const char* swizzle,
bool bilerp,
SkShader::TileMode tileXAndY) {
GrAssert(NULL != texture);
GrAssert(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
fParams.reset(tileXAndY, bilerp);
fTexture.reset(SkRef(texture));
this->setSwizzle(swizzle);
}
void GrTextureAccess::reset(GrTexture* texture,
const GrTextureParams& params) {
GrAssert(NULL != texture);
fTexture.reset(SkRef(texture));
fParams = params;
memcpy(fSwizzle, "rgba", 5);
fSwizzleMask = kRGBA_GrColorComponentFlags;
}
void GrTextureAccess::reset(GrTexture* texture,
bool bilerp,
SkShader::TileMode tileXAndY) {
GrAssert(NULL != texture);
fTexture.reset(SkRef(texture));
fParams.reset(tileXAndY, bilerp);
memcpy(fSwizzle, "rgba", 5);
fSwizzleMask = kRGBA_GrColorComponentFlags;
}
void GrTextureAccess::setSwizzle(const char* swizzle) {
fSwizzleMask = 0;
memset(fSwizzle, '\0', 5);
for (int i = 0; i < 4 && '\0' != swizzle[i]; ++i) {
fSwizzle[i] = swizzle[i];
switch (swizzle[i]) {
case 'r':
fSwizzleMask |= kR_GrColorComponentFlag;
break;
case 'g':
fSwizzleMask |= kG_GrColorComponentFlag;
break;
case 'b':
fSwizzleMask |= kB_GrColorComponentFlag;
break;
case 'a':
fSwizzleMask |= kA_GrColorComponentFlag;
break;
default:
GrCrash("Unexpected swizzle string character.");
break;
}
}
}
|
