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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 #include "GrAAHairLinePathRenderer.h" | 8 #include "GrAAHairLinePathRenderer.h" |
9 | 9 |
10 #include "GrBatch.h" | 10 #include "GrBatch.h" |
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59 1, 4, 2 | 59 1, 4, 2 |
60 }; | 60 }; |
61 | 61 |
62 static const int kIdxsPerQuad = SK_ARRAY_COUNT(kQuadIdxBufPattern); | 62 static const int kIdxsPerQuad = SK_ARRAY_COUNT(kQuadIdxBufPattern); |
63 static const int kQuadNumVertices = 5; | 63 static const int kQuadNumVertices = 5; |
64 static const int kQuadsNumInIdxBuffer = 256; | 64 static const int kQuadsNumInIdxBuffer = 256; |
65 GR_DECLARE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); | 65 GR_DECLARE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); |
66 | 66 |
67 static const GrIndexBuffer* ref_quads_index_buffer(GrResourceProvider* resourceP
rovider) { | 67 static const GrIndexBuffer* ref_quads_index_buffer(GrResourceProvider* resourceP
rovider) { |
68 GR_DEFINE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); | 68 GR_DEFINE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); |
69 return resourceProvider->refOrCreateInstancedIndexBuffer( | 69 return resourceProvider->findOrCreateInstancedIndexBuffer( |
70 kQuadIdxBufPattern, kIdxsPerQuad, kQuadsNumInIdxBuffer, kQuadNumVertices
, | 70 kQuadIdxBufPattern, kIdxsPerQuad, kQuadsNumInIdxBuffer, kQuadNumVertices
, |
71 gQuadsIndexBufferKey); | 71 gQuadsIndexBufferKey); |
72 } | 72 } |
73 | 73 |
74 | 74 |
75 // Each line segment is rendered as two quads and two triangles. | 75 // Each line segment is rendered as two quads and two triangles. |
76 // p0 and p1 have alpha = 1 while all other points have alpha = 0. | 76 // p0 and p1 have alpha = 1 while all other points have alpha = 0. |
77 // The four external points are offset 1 pixel perpendicular to the | 77 // The four external points are offset 1 pixel perpendicular to the |
78 // line and half a pixel parallel to the line. | 78 // line and half a pixel parallel to the line. |
79 // | 79 // |
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93 }; | 93 }; |
94 | 94 |
95 static const int kIdxsPerLineSeg = SK_ARRAY_COUNT(kLineSegIdxBufPattern); | 95 static const int kIdxsPerLineSeg = SK_ARRAY_COUNT(kLineSegIdxBufPattern); |
96 static const int kLineSegNumVertices = 6; | 96 static const int kLineSegNumVertices = 6; |
97 static const int kLineSegsNumInIdxBuffer = 256; | 97 static const int kLineSegsNumInIdxBuffer = 256; |
98 | 98 |
99 GR_DECLARE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); | 99 GR_DECLARE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); |
100 | 100 |
101 static const GrIndexBuffer* ref_lines_index_buffer(GrResourceProvider* resourceP
rovider) { | 101 static const GrIndexBuffer* ref_lines_index_buffer(GrResourceProvider* resourceP
rovider) { |
102 GR_DEFINE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); | 102 GR_DEFINE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); |
103 return resourceProvider->refOrCreateInstancedIndexBuffer( | 103 return resourceProvider->findOrCreateInstancedIndexBuffer( |
104 kLineSegIdxBufPattern, kIdxsPerLineSeg, kLineSegsNumInIdxBuffer, kLineS
egNumVertices, | 104 kLineSegIdxBufPattern, kIdxsPerLineSeg, kLineSegsNumInIdxBuffer, kLineS
egNumVertices, |
105 gLinesIndexBufferKey); | 105 gLinesIndexBufferKey); |
106 } | 106 } |
107 | 107 |
108 // Takes 178th time of logf on Z600 / VC2010 | 108 // Takes 178th time of logf on Z600 / VC2010 |
109 static int get_float_exp(float x) { | 109 static int get_float_exp(float x) { |
110 GR_STATIC_ASSERT(sizeof(int) == sizeof(float)); | 110 GR_STATIC_ASSERT(sizeof(int) == sizeof(float)); |
111 #ifdef SK_DEBUG | 111 #ifdef SK_DEBUG |
112 static bool tested; | 112 static bool tested; |
113 if (!tested) { | 113 if (!tested) { |
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989 GrColor color = GrRandomColor(random); | 989 GrColor color = GrRandomColor(random); |
990 SkMatrix viewMatrix = GrTest::TestMatrix(random); | 990 SkMatrix viewMatrix = GrTest::TestMatrix(random); |
991 GrStrokeInfo stroke(SkStrokeRec::kHairline_InitStyle); | 991 GrStrokeInfo stroke(SkStrokeRec::kHairline_InitStyle); |
992 SkPath path = GrTest::TestPath(random); | 992 SkPath path = GrTest::TestPath(random); |
993 SkIRect devClipBounds; | 993 SkIRect devClipBounds; |
994 devClipBounds.setEmpty(); | 994 devClipBounds.setEmpty(); |
995 return create_hairline_batch(color, viewMatrix, path, stroke, devClipBounds)
; | 995 return create_hairline_batch(color, viewMatrix, path, stroke, devClipBounds)
; |
996 } | 996 } |
997 | 997 |
998 #endif | 998 #endif |
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