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| 1 /* | |
| 2 * Copyright 2014 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrDefaultGeoProcFactory_DEFINED | |
| 9 #define GrDefaultGeoProcFactory_DEFINED | |
| 10 | |
| 11 #include "GrGeometryProcessor.h" | |
| 12 | |
| 13 class GrDrawState; | |
| 14 | |
| 15 /* | |
| 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 | |
| 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. | |
| 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 */ | |
| 23 class GrDefaultGeoProcFactory { | |
| 24 public: | |
| 25 // Structs for adding vertex attributes | |
| 26 struct PositionAttr { | |
| 27 SkPoint fPosition; | |
| 28 }; | |
| 29 | |
| 30 struct PositionCoverageAttr { | |
| 31 SkPoint fPosition; | |
| 32 GrColor fCoverage; | |
| 33 }; | |
| 34 | |
| 35 struct PositionColorAttr { | |
| 36 SkPoint fPosition; | |
| 37 SkColor fColor; | |
| 38 }; | |
| 39 | |
| 40 struct PositionColorCoverageAttr { | |
| 41 SkPoint fPosition; | |
| 42 SkColor fColor; | |
| 43 GrColor fCoverage; | |
| 44 }; | |
| 45 | |
| 46 struct PositionLocalCoordAttr { | |
| 47 SkPoint fPosition; | |
| 48 SkPoint fLocalCoord; | |
| 49 }; | |
| 50 | |
| 51 struct PositionLocalCoordCoverageAttr { | |
| 52 SkPoint fPosition; | |
| 53 SkPoint fLocalCoord; | |
| 54 GrColor fCoverage; | |
| 55 }; | |
| 56 | |
| 57 struct PositionColorLocalCoordAttr { | |
| 58 SkPoint fPosition; | |
| 59 GrColor fColor; | |
| 60 SkPoint fLocalCoord; | |
| 61 }; | |
| 62 | |
| 63 struct PositionColorLocalCoordCoverage { | |
| 64 SkPoint fPosition; | |
| 65 GrColor fColor; | |
| 66 SkPoint fLocalCoord; | |
| 67 GrColor fCoverage; | |
| 68 }; | |
| 69 | |
| 70 enum GPType { | |
| 71 kPosition_GPType = 0x0, // we ALWAYS have position | |
| 72 kColor_GPType = 0x01, | |
| 73 kLocalCoord_GPType = 0x02, | |
| 74 kCoverage_GPType= 0x04, | |
| 75 kLastGPType = kCoverage_GPType | |
| 76 }; | |
| 77 | |
| 78 // YOU MUST UNREF | |
| 79 static const GrGeometryProcessor* CreateAndSetAttribs(GrDrawState*, uint32_t
GPTypeFlags); | |
| 80 static const GrGeometryProcessor* Create(); | |
| 81 }; | |
| 82 | |
| 83 #endif | |
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