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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrDefaultGeoProcFactory_DEFINED | 8 #ifndef GrDefaultGeoProcFactory_DEFINED |
9 #define GrDefaultGeoProcFactory_DEFINED | 9 #define GrDefaultGeoProcFactory_DEFINED |
10 | 10 |
11 #include "GrGeometryProcessor.h" | 11 #include "GrGeometryProcessor.h" |
12 | 12 |
13 class GrDrawState; | 13 class GrDrawState; |
14 | 14 |
15 /* | 15 /* |
16 * A factory for creating default Geometry Processors which simply multiply posi
tion by the uniform | 16 * A factory for creating default Geometry Processors which simply multiply posi
tion by the uniform |
17 * view matrix and wire through color, coverage, UV coords if requested. Right
now this is only | 17 * view matrix and wire through color, coverage, UV coords if requested. Right
now this is only |
18 * used in the creation of optimized draw states because adding default GPs to t
he drawstate can | 18 * used in the creation of optimized draw states because adding default GPs to t
he drawstate can |
19 * interfere with batching due to updating the drawstate. | 19 * interfere with batching due to updating the drawstate. |
20 * TODO When we track geometry state separately from the draw state, we should b
e able use a default | |
21 * GP with every draw call | |
22 */ | 20 */ |
23 class GrDefaultGeoProcFactory { | 21 class GrDefaultGeoProcFactory { |
24 public: | 22 public: |
25 // Structs for adding vertex attributes | 23 // Structs for adding vertex attributes |
26 struct PositionAttr { | 24 struct PositionAttr { |
27 SkPoint fPosition; | 25 SkPoint fPosition; |
28 }; | 26 }; |
29 | 27 |
30 struct PositionCoverageAttr { | 28 struct PositionCoverageAttr { |
31 SkPoint fPosition; | 29 SkPoint fPosition; |
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75 kLastGPType = kCoverage_GPType | 73 kLastGPType = kCoverage_GPType |
76 }; | 74 }; |
77 | 75 |
78 /* | 76 /* |
79 * The following functions are used to create default GPs. If you just need
to create | 77 * The following functions are used to create default GPs. If you just need
to create |
80 * attributes seperately from creating the default GP, use the SetAttribs fu
nction followed | 78 * attributes seperately from creating the default GP, use the SetAttribs fu
nction followed |
81 * by the Create function. Otherwise use CreateAndSetAttribs to do both at
once. | 79 * by the Create function. Otherwise use CreateAndSetAttribs to do both at
once. |
82 * | 80 * |
83 * You must unref the return from Create. | 81 * You must unref the return from Create. |
84 */ | 82 */ |
85 static void SetAttribs(GrDrawState*, uint32_t GPTypeFlags = 0); | 83 static const GrGeometryProcessor* Create(uint32_t gpTypeFlags = 0); |
86 static const GrGeometryProcessor* CreateAndSetAttribs(GrDrawState*, uint32_t
GPTypeFlags = 0); | |
87 static const GrGeometryProcessor* Create(bool hasAttributeCoverage); | |
88 }; | 84 }; |
89 | 85 |
90 #endif | 86 #endif |
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