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
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrDefaultGeoProcFactory_DEFINED
#define GrDefaultGeoProcFactory_DEFINED
#include "GrGeometryProcessor.h"
class GrDrawState;
/*
* A factory for creating default Geometry Processors which simply multiply position by the uniform
* view matrix and wire through color, coverage, UV coords if requested. Right now this is only
* used in the creation of optimized draw states because adding default GPs to the drawstate can
* interfere with batching due to updating the drawstate.
*/
class GrDefaultGeoProcFactory {
public:
// Structs for adding vertex attributes
struct PositionAttr {
SkPoint fPosition;
};
struct PositionCoverageAttr {
SkPoint fPosition;
GrColor fCoverage;
};
struct PositionColorAttr {
SkPoint fPosition;
SkColor fColor;
};
struct PositionColorCoverageAttr {
SkPoint fPosition;
SkColor fColor;
GrColor fCoverage;
};
struct PositionLocalCoordAttr {
SkPoint fPosition;
SkPoint fLocalCoord;
};
struct PositionLocalCoordCoverageAttr {
SkPoint fPosition;
SkPoint fLocalCoord;
GrColor fCoverage;
};
struct PositionColorLocalCoordAttr {
SkPoint fPosition;
GrColor fColor;
SkPoint fLocalCoord;
};
struct PositionColorLocalCoordCoverage {
SkPoint fPosition;
GrColor fColor;
SkPoint fLocalCoord;
GrColor fCoverage;
};
enum GPType {
kPosition_GPType = 0x0, // we ALWAYS have position
kColor_GPType = 0x01,
kLocalCoord_GPType = 0x02,
kCoverage_GPType= 0x04,
kLastGPType = kCoverage_GPType
};
/*
* The following functions are used to create default GPs. If you just need to create
* attributes separately from creating the default GP, use the SetAttribs function followed
* by the Create function. Otherwise use CreateAndSetAttribs to do both at once.
*
* You must unref the return from Create.
*/
// TODO clean this up
static const GrGeometryProcessor* Create(uint32_t gpTypeFlags,
GrColor,
bool localCoordsWillBeRead,
bool coverageWillBeIgnored,
const SkMatrix& viewMatrix = SkMatrix::I(),
const SkMatrix& localMatrix = SkMatrix::I(),
uint8_t coverage = 0xff);
static size_t DefaultVertexStride() { return sizeof(PositionAttr); }
};
#endif
|
