gfx/skia/trunk/src/gpu/GrAARectRenderer.h@6474c204b198 (annotated)
gfx/skia/trunk/src/gpu/GrAARectRenderer.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2012 Google Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef GrAARectRenderer_DEFINED |
| michael@0 | 9 | #define GrAARectRenderer_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkMatrix.h" |
| michael@0 | 12 | #include "SkRect.h" |
| michael@0 | 13 | #include "SkRefCnt.h" |
| michael@0 | 14 | #include "SkStrokeRec.h" |
| michael@0 | 15 | |
| michael@0 | 16 | class GrGpu; |
| michael@0 | 17 | class GrDrawTarget; |
| michael@0 | 18 | class GrIndexBuffer; |
| michael@0 | 19 | |
| michael@0 | 20 | /* |
| michael@0 | 21 | * This class wraps helper functions that draw AA rects (filled & stroked) |
| michael@0 | 22 | */ |
| michael@0 | 23 | class GrAARectRenderer : public SkRefCnt { |
| michael@0 | 24 | public: |
| michael@0 | 25 | SK_DECLARE_INST_COUNT(GrAARectRenderer) |
| michael@0 | 26 | |
| michael@0 | 27 | GrAARectRenderer() |
| michael@0 | 28 | : fAAFillRectIndexBuffer(NULL) |
| michael@0 | 29 | , fAAMiterStrokeRectIndexBuffer(NULL) |
| michael@0 | 30 | , fAABevelStrokeRectIndexBuffer(NULL) { |
| michael@0 | 31 | } |
| michael@0 | 32 | |
| michael@0 | 33 | void reset(); |
| michael@0 | 34 | |
| michael@0 | 35 | ~GrAARectRenderer() { |
| michael@0 | 36 | this->reset(); |
| michael@0 | 37 | } |
| michael@0 | 38 | |
| michael@0 | 39 | // TODO: potentialy fuse the fill & stroke methods and differentiate |
| michael@0 | 40 | // between them by passing in stroke (==NULL means fill). |
| michael@0 | 41 | |
| michael@0 | 42 | void fillAARect(GrGpu* gpu, |
| michael@0 | 43 | GrDrawTarget* target, |
| michael@0 | 44 | const SkRect& rect, |
| michael@0 | 45 | const SkMatrix& combinedMatrix, |
| michael@0 | 46 | const SkRect& devRect, |
| michael@0 | 47 | bool useVertexCoverage) { |
| michael@0 | 48 | #ifdef SHADER_AA_FILL_RECT |
| michael@0 | 49 | if (combinedMatrix.rectStaysRect()) { |
| michael@0 | 50 | this->shaderFillAlignedAARect(gpu, target, |
| michael@0 | 51 | rect, combinedMatrix); |
| michael@0 | 52 | } else { |
| michael@0 | 53 | this->shaderFillAARect(gpu, target, |
| michael@0 | 54 | rect, combinedMatrix); |
| michael@0 | 55 | } |
| michael@0 | 56 | #else |
| michael@0 | 57 | this->geometryFillAARect(gpu, target, |
| michael@0 | 58 | rect, combinedMatrix, |
| michael@0 | 59 | devRect, useVertexCoverage); |
| michael@0 | 60 | #endif |
| michael@0 | 61 | } |
| michael@0 | 62 | |
| michael@0 | 63 | void strokeAARect(GrGpu* gpu, |
| michael@0 | 64 | GrDrawTarget* target, |
| michael@0 | 65 | const SkRect& rect, |
| michael@0 | 66 | const SkMatrix& combinedMatrix, |
| michael@0 | 67 | const SkRect& devRect, |
| michael@0 | 68 | const SkStrokeRec* stroke, |
| michael@0 | 69 | bool useVertexCoverage); |
| michael@0 | 70 | |
| michael@0 | 71 | // First rect is outer; second rect is inner |
| michael@0 | 72 | void fillAANestedRects(GrGpu* gpu, |
| michael@0 | 73 | GrDrawTarget* target, |
| michael@0 | 74 | const SkRect rects[2], |
| michael@0 | 75 | const SkMatrix& combinedMatrix, |
| michael@0 | 76 | bool useVertexCoverage); |
| michael@0 | 77 | |
| michael@0 | 78 | private: |
| michael@0 | 79 | GrIndexBuffer* fAAFillRectIndexBuffer; |
| michael@0 | 80 | GrIndexBuffer* fAAMiterStrokeRectIndexBuffer; |
| michael@0 | 81 | GrIndexBuffer* fAABevelStrokeRectIndexBuffer; |
| michael@0 | 82 | |
| michael@0 | 83 | GrIndexBuffer* aaFillRectIndexBuffer(GrGpu* gpu); |
| michael@0 | 84 | |
| michael@0 | 85 | static int aaStrokeRectIndexCount(bool miterStroke); |
| michael@0 | 86 | GrIndexBuffer* aaStrokeRectIndexBuffer(GrGpu* gpu, bool miterStroke); |
| michael@0 | 87 | |
| michael@0 | 88 | // TODO: Remove the useVertexCoverage boolean. Just use it all the time |
| michael@0 | 89 | // since we now have a coverage vertex attribute |
| michael@0 | 90 | void geometryFillAARect(GrGpu* gpu, |
| michael@0 | 91 | GrDrawTarget* target, |
| michael@0 | 92 | const SkRect& rect, |
| michael@0 | 93 | const SkMatrix& combinedMatrix, |
| michael@0 | 94 | const SkRect& devRect, |
| michael@0 | 95 | bool useVertexCoverage); |
| michael@0 | 96 | |
| michael@0 | 97 | void shaderFillAARect(GrGpu* gpu, |
| michael@0 | 98 | GrDrawTarget* target, |
| michael@0 | 99 | const SkRect& rect, |
| michael@0 | 100 | const SkMatrix& combinedMatrix); |
| michael@0 | 101 | |
| michael@0 | 102 | void shaderFillAlignedAARect(GrGpu* gpu, |
| michael@0 | 103 | GrDrawTarget* target, |
| michael@0 | 104 | const SkRect& rect, |
| michael@0 | 105 | const SkMatrix& combinedMatrix); |
| michael@0 | 106 | |
| michael@0 | 107 | void geometryStrokeAARect(GrGpu* gpu, |
| michael@0 | 108 | GrDrawTarget* target, |
| michael@0 | 109 | const SkRect& devOutside, |
| michael@0 | 110 | const SkRect& devOutsideAssist, |
| michael@0 | 111 | const SkRect& devInside, |
| michael@0 | 112 | bool useVertexCoverage, |
| michael@0 | 113 | bool miterStroke); |
| michael@0 | 114 | |
| michael@0 | 115 | typedef SkRefCnt INHERITED; |
| michael@0 | 116 | }; |
| michael@0 | 117 | |
| michael@0 | 118 | #endif // GrAARectRenderer_DEFINED |
