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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" |
11 #include "GrBatchTarget.h" | 11 #include "GrBatchTarget.h" |
12 #include "GrBufferAllocPool.h" | 12 #include "GrBufferAllocPool.h" |
13 #include "GrContext.h" | 13 #include "GrContext.h" |
14 #include "GrDefaultGeoProcFactory.h" | 14 #include "GrDefaultGeoProcFactory.h" |
15 #include "GrDrawTargetCaps.h" | 15 #include "GrDrawTargetCaps.h" |
16 #include "GrGpu.h" | |
17 #include "GrIndexBuffer.h" | 16 #include "GrIndexBuffer.h" |
18 #include "GrPathUtils.h" | 17 #include "GrPathUtils.h" |
19 #include "GrPipelineBuilder.h" | 18 #include "GrPipelineBuilder.h" |
20 #include "GrProcessor.h" | 19 #include "GrProcessor.h" |
20 #include "GrResourceProvider.h" | |
21 #include "GrVertexBuffer.h" | 21 #include "GrVertexBuffer.h" |
22 #include "SkGeometry.h" | 22 #include "SkGeometry.h" |
23 #include "SkStroke.h" | 23 #include "SkStroke.h" |
24 #include "SkTemplates.h" | 24 #include "SkTemplates.h" |
25 | 25 |
26 #include "effects/GrBezierEffect.h" | 26 #include "effects/GrBezierEffect.h" |
27 | 27 |
28 #define PREALLOC_PTARRAY(N) SkSTArray<(N),SkPoint, true> | |
29 | |
28 // quadratics are rendered as 5-sided polys in order to bound the | 30 // quadratics are rendered as 5-sided polys in order to bound the |
29 // AA stroke around the center-curve. See comments in push_quad_index_buffer and | 31 // AA stroke around the center-curve. See comments in push_quad_index_buffer and |
30 // bloat_quad. Quadratics and conics share an index buffer | 32 // bloat_quad. Quadratics and conics share an index buffer |
31 | 33 |
32 // lines are rendered as: | 34 // lines are rendered as: |
33 // *______________* | 35 // *______________* |
34 // |\ -_______ /| | 36 // |\ -_______ /| |
35 // | \ \ / | | 37 // | \ \ / | |
36 // | *--------* | | 38 // | *--------* | |
37 // | / ______/ \ | | 39 // | / ______/ \ | |
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53 // specified by these 9 indices: | 55 // specified by these 9 indices: |
54 static const uint16_t kQuadIdxBufPattern[] = { | 56 static const uint16_t kQuadIdxBufPattern[] = { |
55 0, 1, 2, | 57 0, 1, 2, |
56 2, 4, 3, | 58 2, 4, 3, |
57 1, 4, 2 | 59 1, 4, 2 |
58 }; | 60 }; |
59 | 61 |
60 static const int kIdxsPerQuad = SK_ARRAY_COUNT(kQuadIdxBufPattern); | 62 static const int kIdxsPerQuad = SK_ARRAY_COUNT(kQuadIdxBufPattern); |
61 static const int kQuadNumVertices = 5; | 63 static const int kQuadNumVertices = 5; |
62 static const int kQuadsNumInIdxBuffer = 256; | 64 static const int kQuadsNumInIdxBuffer = 256; |
65 GR_DECLARE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); | |
66 | |
67 static const GrIndexBuffer* ref_quads_index_buffer(GrResourceProvider* resourceP rovider) { | |
68 GR_DEFINE_STATIC_UNIQUE_KEY(gQuadsIndexBufferKey); | |
69 return resourceProvider->refOrCreateInstancedIndexBuffer( | |
70 kQuadIdxBufPattern, kIdxsPerQuad, kQuadsNumInIdxBuffer, kQuadNumVertices , | |
71 gQuadsIndexBufferKey); | |
72 } | |
63 | 73 |
64 | 74 |
65 // Each line segment is rendered as two quads and two triangles. | 75 // Each line segment is rendered as two quads and two triangles. |
66 // 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. |
67 // The four external points are offset 1 pixel perpendicular to the | 77 // The four external points are offset 1 pixel perpendicular to the |
68 // line and half a pixel parallel to the line. | 78 // line and half a pixel parallel to the line. |
69 // | 79 // |
70 // p4 p5 | 80 // p4 p5 |
71 // p0 p1 | 81 // p0 p1 |
72 // p2 p3 | 82 // p2 p3 |
73 // | 83 // |
74 // Each is drawn as six triangles specified by these 18 indices: | 84 // Each is drawn as six triangles specified by these 18 indices: |
75 | 85 |
76 static const uint16_t kLineSegIdxBufPattern[] = { | 86 static const uint16_t kLineSegIdxBufPattern[] = { |
77 0, 1, 3, | 87 0, 1, 3, |
78 0, 3, 2, | 88 0, 3, 2, |
79 0, 4, 5, | 89 0, 4, 5, |
80 0, 5, 1, | 90 0, 5, 1, |
81 0, 2, 4, | 91 0, 2, 4, |
82 1, 5, 3 | 92 1, 5, 3 |
83 }; | 93 }; |
84 | 94 |
85 static const int kIdxsPerLineSeg = SK_ARRAY_COUNT(kLineSegIdxBufPattern); | 95 static const int kIdxsPerLineSeg = SK_ARRAY_COUNT(kLineSegIdxBufPattern); |
86 static const int kLineSegNumVertices = 6; | 96 static const int kLineSegNumVertices = 6; |
87 static const int kLineSegsNumInIdxBuffer = 256; | 97 static const int kLineSegsNumInIdxBuffer = 256; |
88 | 98 |
89 GrPathRenderer* GrAAHairLinePathRenderer::Create(GrContext* context) { | 99 GR_DECLARE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); |
90 GrGpu* gpu = context->getGpu(); | 100 |
91 GrIndexBuffer* qIdxBuf = gpu->createInstancedIndexBuffer(kQuadIdxBufPattern, | 101 static const GrIndexBuffer* ref_lines_index_buffer(GrResourceProvider* resourceP rovider) { |
92 kIdxsPerQuad, | 102 GR_DEFINE_STATIC_UNIQUE_KEY(gLinesIndexBufferKey); |
93 kQuadsNumInIdxBuffe r, | 103 return resourceProvider->refOrCreateInstancedIndexBuffer( |
94 kQuadNumVertices); | 104 kLineSegIdxBufPattern, kIdxsPerLineSeg, kLineSegsNumInIdxBuffer, kLineS egNumVertices, |
95 SkAutoTUnref<GrIndexBuffer> qIdxBuffer(qIdxBuf); | 105 gLinesIndexBufferKey); |
96 GrIndexBuffer* lIdxBuf = gpu->createInstancedIndexBuffer(kLineSegIdxBufPatte rn, | |
97 kIdxsPerLineSeg, | |
98 kLineSegsNumInIdxBu ffer, | |
99 kLineSegNumVertices ); | |
100 SkAutoTUnref<GrIndexBuffer> lIdxBuffer(lIdxBuf); | |
101 return SkNEW_ARGS(GrAAHairLinePathRenderer, | |
102 (context, lIdxBuf, qIdxBuf)); | |
103 } | 106 } |
104 | 107 |
105 GrAAHairLinePathRenderer::GrAAHairLinePathRenderer( | |
106 const GrContext* context, | |
107 const GrIndexBuffer* linesIndexBuffer, | |
108 const GrIndexBuffer* quadsIndexBuffer) { | |
109 fLinesIndexBuffer = linesIndexBuffer; | |
110 linesIndexBuffer->ref(); | |
111 fQuadsIndexBuffer = quadsIndexBuffer; | |
112 quadsIndexBuffer->ref(); | |
113 } | |
114 | |
115 GrAAHairLinePathRenderer::~GrAAHairLinePathRenderer() { | |
116 fLinesIndexBuffer->unref(); | |
117 fQuadsIndexBuffer->unref(); | |
118 } | |
119 | |
120 namespace { | |
121 | |
122 #define PREALLOC_PTARRAY(N) SkSTArray<(N),SkPoint, true> | |
123 | |
124 // Takes 178th time of logf on Z600 / VC2010 | 108 // Takes 178th time of logf on Z600 / VC2010 |
125 int get_float_exp(float x) { | 109 static int get_float_exp(float x) { |
126 GR_STATIC_ASSERT(sizeof(int) == sizeof(float)); | 110 GR_STATIC_ASSERT(sizeof(int) == sizeof(float)); |
127 #ifdef SK_DEBUG | 111 #ifdef SK_DEBUG |
128 static bool tested; | 112 static bool tested; |
129 if (!tested) { | 113 if (!tested) { |
130 tested = true; | 114 tested = true; |
131 SkASSERT(get_float_exp(0.25f) == -2); | 115 SkASSERT(get_float_exp(0.25f) == -2); |
132 SkASSERT(get_float_exp(0.3f) == -2); | 116 SkASSERT(get_float_exp(0.3f) == -2); |
133 SkASSERT(get_float_exp(0.5f) == -1); | 117 SkASSERT(get_float_exp(0.5f) == -1); |
134 SkASSERT(get_float_exp(1.f) == 0); | 118 SkASSERT(get_float_exp(1.f) == 0); |
135 SkASSERT(get_float_exp(2.f) == 1); | 119 SkASSERT(get_float_exp(2.f) == 1); |
136 SkASSERT(get_float_exp(2.5f) == 1); | 120 SkASSERT(get_float_exp(2.5f) == 1); |
137 SkASSERT(get_float_exp(8.f) == 3); | 121 SkASSERT(get_float_exp(8.f) == 3); |
138 SkASSERT(get_float_exp(100.f) == 6); | 122 SkASSERT(get_float_exp(100.f) == 6); |
139 SkASSERT(get_float_exp(1000.f) == 9); | 123 SkASSERT(get_float_exp(1000.f) == 9); |
140 SkASSERT(get_float_exp(1024.f) == 10); | 124 SkASSERT(get_float_exp(1024.f) == 10); |
141 SkASSERT(get_float_exp(3000000.f) == 21); | 125 SkASSERT(get_float_exp(3000000.f) == 21); |
142 } | 126 } |
143 #endif | 127 #endif |
144 const int* iptr = (const int*)&x; | 128 const int* iptr = (const int*)&x; |
145 return (((*iptr) & 0x7f800000) >> 23) - 127; | 129 return (((*iptr) & 0x7f800000) >> 23) - 127; |
146 } | 130 } |
147 | 131 |
148 // Uses the max curvature function for quads to estimate | 132 // Uses the max curvature function for quads to estimate |
149 // where to chop the conic. If the max curvature is not | 133 // where to chop the conic. If the max curvature is not |
150 // found along the curve segment it will return 1 and | 134 // found along the curve segment it will return 1 and |
151 // dst[0] is the original conic. If it returns 2 the dst[0] | 135 // dst[0] is the original conic. If it returns 2 the dst[0] |
152 // and dst[1] are the two new conics. | 136 // and dst[1] are the two new conics. |
153 int split_conic(const SkPoint src[3], SkConic dst[2], const SkScalar weight) { | 137 static int split_conic(const SkPoint src[3], SkConic dst[2], const SkScalar weig ht) { |
154 SkScalar t = SkFindQuadMaxCurvature(src); | 138 SkScalar t = SkFindQuadMaxCurvature(src); |
155 if (t == 0) { | 139 if (t == 0) { |
156 if (dst) { | 140 if (dst) { |
157 dst[0].set(src, weight); | 141 dst[0].set(src, weight); |
158 } | 142 } |
159 return 1; | 143 return 1; |
160 } else { | 144 } else { |
161 if (dst) { | 145 if (dst) { |
162 SkConic conic; | 146 SkConic conic; |
163 conic.set(src, weight); | 147 conic.set(src, weight); |
164 conic.chopAt(t, dst); | 148 conic.chopAt(t, dst); |
165 } | 149 } |
166 return 2; | 150 return 2; |
167 } | 151 } |
168 } | 152 } |
169 | 153 |
170 // Calls split_conic on the entire conic and then once more on each subsection. | 154 // Calls split_conic on the entire conic and then once more on each subsection. |
171 // Most cases will result in either 1 conic (chop point is not within t range) | 155 // Most cases will result in either 1 conic (chop point is not within t range) |
172 // or 3 points (split once and then one subsection is split again). | 156 // or 3 points (split once and then one subsection is split again). |
173 int chop_conic(const SkPoint src[3], SkConic dst[4], const SkScalar weight) { | 157 static int chop_conic(const SkPoint src[3], SkConic dst[4], const SkScalar weigh t) { |
174 SkConic dstTemp[2]; | 158 SkConic dstTemp[2]; |
175 int conicCnt = split_conic(src, dstTemp, weight); | 159 int conicCnt = split_conic(src, dstTemp, weight); |
176 if (2 == conicCnt) { | 160 if (2 == conicCnt) { |
177 int conicCnt2 = split_conic(dstTemp[0].fPts, dst, dstTemp[0].fW); | 161 int conicCnt2 = split_conic(dstTemp[0].fPts, dst, dstTemp[0].fW); |
178 conicCnt = conicCnt2 + split_conic(dstTemp[1].fPts, &dst[conicCnt2], dst Temp[1].fW); | 162 conicCnt = conicCnt2 + split_conic(dstTemp[1].fPts, &dst[conicCnt2], dst Temp[1].fW); |
179 } else { | 163 } else { |
180 dst[0] = dstTemp[0]; | 164 dst[0] = dstTemp[0]; |
181 } | 165 } |
182 return conicCnt; | 166 return conicCnt; |
183 } | 167 } |
184 | 168 |
185 // returns 0 if quad/conic is degen or close to it | 169 // returns 0 if quad/conic is degen or close to it |
186 // in this case approx the path with lines | 170 // in this case approx the path with lines |
187 // otherwise returns 1 | 171 // otherwise returns 1 |
188 int is_degen_quad_or_conic(const SkPoint p[3], SkScalar* dsqd) { | 172 static int is_degen_quad_or_conic(const SkPoint p[3], SkScalar* dsqd) { |
189 static const SkScalar gDegenerateToLineTol = SK_Scalar1; | 173 static const SkScalar gDegenerateToLineTol = SK_Scalar1; |
190 static const SkScalar gDegenerateToLineTolSqd = | 174 static const SkScalar gDegenerateToLineTolSqd = |
191 SkScalarMul(gDegenerateToLineTol, gDegenerateToLineTol); | 175 SkScalarMul(gDegenerateToLineTol, gDegenerateToLineTol); |
192 | 176 |
193 if (p[0].distanceToSqd(p[1]) < gDegenerateToLineTolSqd || | 177 if (p[0].distanceToSqd(p[1]) < gDegenerateToLineTolSqd || |
194 p[1].distanceToSqd(p[2]) < gDegenerateToLineTolSqd) { | 178 p[1].distanceToSqd(p[2]) < gDegenerateToLineTolSqd) { |
195 return 1; | 179 return 1; |
196 } | 180 } |
197 | 181 |
198 *dsqd = p[1].distanceToLineBetweenSqd(p[0], p[2]); | 182 *dsqd = p[1].distanceToLineBetweenSqd(p[0], p[2]); |
199 if (*dsqd < gDegenerateToLineTolSqd) { | 183 if (*dsqd < gDegenerateToLineTolSqd) { |
200 return 1; | 184 return 1; |
201 } | 185 } |
202 | 186 |
203 if (p[2].distanceToLineBetweenSqd(p[1], p[0]) < gDegenerateToLineTolSqd) { | 187 if (p[2].distanceToLineBetweenSqd(p[1], p[0]) < gDegenerateToLineTolSqd) { |
204 return 1; | 188 return 1; |
205 } | 189 } |
206 return 0; | 190 return 0; |
207 } | 191 } |
208 | 192 |
209 int is_degen_quad_or_conic(const SkPoint p[3]) { | 193 static int is_degen_quad_or_conic(const SkPoint p[3]) { |
210 SkScalar dsqd; | 194 SkScalar dsqd; |
211 return is_degen_quad_or_conic(p, &dsqd); | 195 return is_degen_quad_or_conic(p, &dsqd); |
212 } | 196 } |
213 | 197 |
214 // we subdivide the quads to avoid huge overfill | 198 // we subdivide the quads to avoid huge overfill |
215 // if it returns -1 then should be drawn as lines | 199 // if it returns -1 then should be drawn as lines |
216 int num_quad_subdivs(const SkPoint p[3]) { | 200 static int num_quad_subdivs(const SkPoint p[3]) { |
217 SkScalar dsqd; | 201 SkScalar dsqd; |
218 if (is_degen_quad_or_conic(p, &dsqd)) { | 202 if (is_degen_quad_or_conic(p, &dsqd)) { |
219 return -1; | 203 return -1; |
220 } | 204 } |
221 | 205 |
222 // tolerance of triangle height in pixels | 206 // tolerance of triangle height in pixels |
223 // tuned on windows Quadro FX 380 / Z600 | 207 // tuned on windows Quadro FX 380 / Z600 |
224 // trade off of fill vs cpu time on verts | 208 // trade off of fill vs cpu time on verts |
225 // maybe different when do this using gpu (geo or tess shaders) | 209 // maybe different when do this using gpu (geo or tess shaders) |
226 static const SkScalar gSubdivTol = 175 * SK_Scalar1; | 210 static const SkScalar gSubdivTol = 175 * SK_Scalar1; |
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242 | 226 |
243 /** | 227 /** |
244 * Generates the lines and quads to be rendered. Lines are always recorded in | 228 * Generates the lines and quads to be rendered. Lines are always recorded in |
245 * device space. We will do a device space bloat to account for the 1pixel | 229 * device space. We will do a device space bloat to account for the 1pixel |
246 * thickness. | 230 * thickness. |
247 * Quads are recorded in device space unless m contains | 231 * Quads are recorded in device space unless m contains |
248 * perspective, then in they are in src space. We do this because we will | 232 * perspective, then in they are in src space. We do this because we will |
249 * subdivide large quads to reduce over-fill. This subdivision has to be | 233 * subdivide large quads to reduce over-fill. This subdivision has to be |
250 * performed before applying the perspective matrix. | 234 * performed before applying the perspective matrix. |
251 */ | 235 */ |
252 int gather_lines_and_quads(const SkPath& path, | 236 static int gather_lines_and_quads(const SkPath& path, |
253 const SkMatrix& m, | 237 const SkMatrix& m, |
254 const SkIRect& devClipBounds, | 238 const SkIRect& devClipBounds, |
255 GrAAHairLinePathRenderer::PtArray* lines, | 239 GrAAHairLinePathRenderer::PtArray* lines, |
256 GrAAHairLinePathRenderer::PtArray* quads, | 240 GrAAHairLinePathRenderer::PtArray* quads, |
257 GrAAHairLinePathRenderer::PtArray* conics, | 241 GrAAHairLinePathRenderer::PtArray* conics, |
258 GrAAHairLinePathRenderer::IntArray* quadSubdivCnts, | 242 GrAAHairLinePathRenderer::IntArray* quadSubdiv Cnts, |
259 GrAAHairLinePathRenderer::FloatArray* conicWeights) { | 243 GrAAHairLinePathRenderer::FloatArray* conicWei ghts) { |
260 SkPath::Iter iter(path, false); | 244 SkPath::Iter iter(path, false); |
261 | 245 |
262 int totalQuadCount = 0; | 246 int totalQuadCount = 0; |
263 SkRect bounds; | 247 SkRect bounds; |
264 SkIRect ibounds; | 248 SkIRect ibounds; |
265 | 249 |
266 bool persp = m.hasPerspective(); | 250 bool persp = m.hasPerspective(); |
267 | 251 |
268 for (;;) { | 252 for (;;) { |
269 SkPoint pathPts[4]; | 253 SkPoint pathPts[4]; |
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433 } fConic; | 417 } fConic; |
434 SkVector fQuadCoord; | 418 SkVector fQuadCoord; |
435 struct { | 419 struct { |
436 SkScalar fBogus[4]; | 420 SkScalar fBogus[4]; |
437 }; | 421 }; |
438 }; | 422 }; |
439 }; | 423 }; |
440 | 424 |
441 GR_STATIC_ASSERT(sizeof(BezierVertex) == 3 * sizeof(SkPoint)); | 425 GR_STATIC_ASSERT(sizeof(BezierVertex) == 3 * sizeof(SkPoint)); |
442 | 426 |
443 void intersect_lines(const SkPoint& ptA, const SkVector& normA, | 427 static void intersect_lines(const SkPoint& ptA, const SkVector& normA, |
444 const SkPoint& ptB, const SkVector& normB, | 428 const SkPoint& ptB, const SkVector& normB, |
445 SkPoint* result) { | 429 SkPoint* result) { |
446 | 430 |
447 SkScalar lineAW = -normA.dot(ptA); | 431 SkScalar lineAW = -normA.dot(ptA); |
448 SkScalar lineBW = -normB.dot(ptB); | 432 SkScalar lineBW = -normB.dot(ptB); |
449 | 433 |
450 SkScalar wInv = SkScalarMul(normA.fX, normB.fY) - | 434 SkScalar wInv = SkScalarMul(normA.fX, normB.fY) - |
451 SkScalarMul(normA.fY, normB.fX); | 435 SkScalarMul(normA.fY, normB.fX); |
452 wInv = SkScalarInvert(wInv); | 436 wInv = SkScalarInvert(wInv); |
453 | 437 |
454 result->fX = SkScalarMul(normA.fY, lineBW) - SkScalarMul(lineAW, normB.fY); | 438 result->fX = SkScalarMul(normA.fY, lineBW) - SkScalarMul(lineAW, normB.fY); |
455 result->fX = SkScalarMul(result->fX, wInv); | 439 result->fX = SkScalarMul(result->fX, wInv); |
456 | 440 |
457 result->fY = SkScalarMul(lineAW, normB.fX) - SkScalarMul(normA.fX, lineBW); | 441 result->fY = SkScalarMul(lineAW, normB.fX) - SkScalarMul(normA.fX, lineBW); |
458 result->fY = SkScalarMul(result->fY, wInv); | 442 result->fY = SkScalarMul(result->fY, wInv); |
459 } | 443 } |
460 | 444 |
461 void set_uv_quad(const SkPoint qpts[3], BezierVertex verts[kQuadNumVertices]) { | 445 static void set_uv_quad(const SkPoint qpts[3], BezierVertex verts[kQuadNumVertic es]) { |
462 // this should be in the src space, not dev coords, when we have perspective | 446 // this should be in the src space, not dev coords, when we have perspective |
463 GrPathUtils::QuadUVMatrix DevToUV(qpts); | 447 GrPathUtils::QuadUVMatrix DevToUV(qpts); |
464 DevToUV.apply<kQuadNumVertices, sizeof(BezierVertex), sizeof(SkPoint)>(verts ); | 448 DevToUV.apply<kQuadNumVertices, sizeof(BezierVertex), sizeof(SkPoint)>(verts ); |
465 } | 449 } |
466 | 450 |
467 void bloat_quad(const SkPoint qpts[3], const SkMatrix* toDevice, | 451 static void bloat_quad(const SkPoint qpts[3], const SkMatrix* toDevice, |
468 const SkMatrix* toSrc, BezierVertex verts[kQuadNumVertices]) { | 452 const SkMatrix* toSrc, BezierVertex verts[kQuadNumVertice s]) { |
469 SkASSERT(!toDevice == !toSrc); | 453 SkASSERT(!toDevice == !toSrc); |
470 // original quad is specified by tri a,b,c | 454 // original quad is specified by tri a,b,c |
471 SkPoint a = qpts[0]; | 455 SkPoint a = qpts[0]; |
472 SkPoint b = qpts[1]; | 456 SkPoint b = qpts[1]; |
473 SkPoint c = qpts[2]; | 457 SkPoint c = qpts[2]; |
474 | 458 |
475 if (toDevice) { | 459 if (toDevice) { |
476 toDevice->mapPoints(&a, 1); | 460 toDevice->mapPoints(&a, 1); |
477 toDevice->mapPoints(&b, 1); | 461 toDevice->mapPoints(&b, 1); |
478 toDevice->mapPoints(&c, 1); | 462 toDevice->mapPoints(&c, 1); |
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536 } | 520 } |
537 } | 521 } |
538 | 522 |
539 // Equations based off of Loop-Blinn Quadratic GPU Rendering | 523 // Equations based off of Loop-Blinn Quadratic GPU Rendering |
540 // Input Parametric: | 524 // Input Parametric: |
541 // P(t) = (P0*(1-t)^2 + 2*w*P1*t*(1-t) + P2*t^2) / (1-t)^2 + 2*w*t*(1-t) + t^2) | 525 // P(t) = (P0*(1-t)^2 + 2*w*P1*t*(1-t) + P2*t^2) / (1-t)^2 + 2*w*t*(1-t) + t^2) |
542 // Output Implicit: | 526 // Output Implicit: |
543 // f(x, y, w) = f(P) = K^2 - LM | 527 // f(x, y, w) = f(P) = K^2 - LM |
544 // K = dot(k, P), L = dot(l, P), M = dot(m, P) | 528 // K = dot(k, P), L = dot(l, P), M = dot(m, P) |
545 // k, l, m are calculated in function GrPathUtils::getConicKLM | 529 // k, l, m are calculated in function GrPathUtils::getConicKLM |
546 void set_conic_coeffs(const SkPoint p[3], BezierVertex verts[kQuadNumVertices], | 530 static void set_conic_coeffs(const SkPoint p[3], BezierVertex verts[kQuadNumVert ices], |
547 const SkScalar weight) { | 531 const SkScalar weight) { |
548 SkScalar klm[9]; | 532 SkScalar klm[9]; |
549 | 533 |
550 GrPathUtils::getConicKLM(p, weight, klm); | 534 GrPathUtils::getConicKLM(p, weight, klm); |
551 | 535 |
552 for (int i = 0; i < kQuadNumVertices; ++i) { | 536 for (int i = 0; i < kQuadNumVertices; ++i) { |
553 const SkPoint pnt = verts[i].fPos; | 537 const SkPoint pnt = verts[i].fPos; |
554 verts[i].fConic.fK = pnt.fX * klm[0] + pnt.fY * klm[1] + klm[2]; | 538 verts[i].fConic.fK = pnt.fX * klm[0] + pnt.fY * klm[1] + klm[2]; |
555 verts[i].fConic.fL = pnt.fX * klm[3] + pnt.fY * klm[4] + klm[5]; | 539 verts[i].fConic.fL = pnt.fX * klm[3] + pnt.fY * klm[4] + klm[5]; |
556 verts[i].fConic.fM = pnt.fX * klm[6] + pnt.fY * klm[7] + klm[8]; | 540 verts[i].fConic.fM = pnt.fX * klm[6] + pnt.fY * klm[7] + klm[8]; |
557 } | 541 } |
558 } | 542 } |
559 | 543 |
560 void add_conics(const SkPoint p[3], | 544 static void add_conics(const SkPoint p[3], |
561 const SkScalar weight, | 545 const SkScalar weight, |
562 const SkMatrix* toDevice, | 546 const SkMatrix* toDevice, |
563 const SkMatrix* toSrc, | 547 const SkMatrix* toSrc, |
564 BezierVertex** vert) { | 548 BezierVertex** vert) { |
565 bloat_quad(p, toDevice, toSrc, *vert); | 549 bloat_quad(p, toDevice, toSrc, *vert); |
566 set_conic_coeffs(p, *vert, weight); | 550 set_conic_coeffs(p, *vert, weight); |
567 *vert += kQuadNumVertices; | 551 *vert += kQuadNumVertices; |
568 } | 552 } |
569 | 553 |
570 void add_quads(const SkPoint p[3], | 554 static void add_quads(const SkPoint p[3], |
571 int subdiv, | 555 int subdiv, |
572 const SkMatrix* toDevice, | 556 const SkMatrix* toDevice, |
573 const SkMatrix* toSrc, | 557 const SkMatrix* toSrc, |
574 BezierVertex** vert) { | 558 BezierVertex** vert) { |
575 SkASSERT(subdiv >= 0); | 559 SkASSERT(subdiv >= 0); |
576 if (subdiv) { | 560 if (subdiv) { |
577 SkPoint newP[5]; | 561 SkPoint newP[5]; |
578 SkChopQuadAtHalf(p, newP); | 562 SkChopQuadAtHalf(p, newP); |
579 add_quads(newP + 0, subdiv-1, toDevice, toSrc, vert); | 563 add_quads(newP + 0, subdiv-1, toDevice, toSrc, vert); |
580 add_quads(newP + 2, subdiv-1, toDevice, toSrc, vert); | 564 add_quads(newP + 2, subdiv-1, toDevice, toSrc, vert); |
581 } else { | 565 } else { |
582 bloat_quad(p, toDevice, toSrc, *vert); | 566 bloat_quad(p, toDevice, toSrc, *vert); |
583 set_uv_quad(p, *vert); | 567 set_uv_quad(p, *vert); |
584 *vert += kQuadNumVertices; | 568 *vert += kQuadNumVertices; |
585 } | 569 } |
586 } | 570 } |
587 | 571 |
588 void add_line(const SkPoint p[2], | 572 static void add_line(const SkPoint p[2], |
589 const SkMatrix* toSrc, | 573 const SkMatrix* toSrc, |
590 uint8_t coverage, | 574 uint8_t coverage, |
591 LineVertex** vert) { | 575 LineVertex** vert) { |
592 const SkPoint& a = p[0]; | 576 const SkPoint& a = p[0]; |
593 const SkPoint& b = p[1]; | 577 const SkPoint& b = p[1]; |
594 | 578 |
595 SkVector ortho, vec = b; | 579 SkVector ortho, vec = b; |
596 vec -= a; | 580 vec -= a; |
597 | 581 |
598 if (vec.setLength(SK_ScalarHalf)) { | 582 if (vec.setLength(SK_ScalarHalf)) { |
599 // Create a vector orthogonal to 'vec' and of unit length | 583 // Create a vector orthogonal to 'vec' and of unit length |
600 ortho.fX = 2.0f * vec.fY; | 584 ortho.fX = 2.0f * vec.fY; |
601 ortho.fY = -2.0f * vec.fX; | 585 ortho.fY = -2.0f * vec.fX; |
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623 } else { | 607 } else { |
624 // just make it degenerate and likely offscreen | 608 // just make it degenerate and likely offscreen |
625 for (int i = 0; i < kLineSegNumVertices; ++i) { | 609 for (int i = 0; i < kLineSegNumVertices; ++i) { |
626 (*vert)[i].fPos.set(SK_ScalarMax, SK_ScalarMax); | 610 (*vert)[i].fPos.set(SK_ScalarMax, SK_ScalarMax); |
627 } | 611 } |
628 } | 612 } |
629 | 613 |
630 *vert += kLineSegNumVertices; | 614 *vert += kLineSegNumVertices; |
631 } | 615 } |
632 | 616 |
633 } | |
634 | |
635 /////////////////////////////////////////////////////////////////////////////// | 617 /////////////////////////////////////////////////////////////////////////////// |
636 | 618 |
637 bool GrAAHairLinePathRenderer::canDrawPath(const GrDrawTarget* target, | 619 bool GrAAHairLinePathRenderer::canDrawPath(const GrDrawTarget* target, |
638 const GrPipelineBuilder* pipelineBuil der, | 620 const GrPipelineBuilder* pipelineBuil der, |
639 const SkMatrix& viewMatrix, | 621 const SkMatrix& viewMatrix, |
640 const SkPath& path, | 622 const SkPath& path, |
641 const GrStrokeInfo& stroke, | 623 const GrStrokeInfo& stroke, |
642 bool antiAlias) const { | 624 bool antiAlias) const { |
643 if (!antiAlias) { | 625 if (!antiAlias) { |
644 return false; | 626 return false; |
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695 class AAHairlineBatch : public GrBatch { | 677 class AAHairlineBatch : public GrBatch { |
696 public: | 678 public: |
697 struct Geometry { | 679 struct Geometry { |
698 GrColor fColor; | 680 GrColor fColor; |
699 uint8_t fCoverage; | 681 uint8_t fCoverage; |
700 SkMatrix fViewMatrix; | 682 SkMatrix fViewMatrix; |
701 SkPath fPath; | 683 SkPath fPath; |
702 SkIRect fDevClipBounds; | 684 SkIRect fDevClipBounds; |
703 }; | 685 }; |
704 | 686 |
705 // TODO Batch itself should not hold on to index buffers. Instead, these sh ould live in the | 687 static GrBatch* Create(const Geometry& geometry) { |
706 // cache. | 688 return SkNEW_ARGS(AAHairlineBatch, (geometry)); |
707 static GrBatch* Create(const Geometry& geometry, const GrIndexBuffer* linesI ndexBuffer, | |
708 const GrIndexBuffer* quadsIndexBuffer) { | |
709 return SkNEW_ARGS(AAHairlineBatch, (geometry, linesIndexBuffer, quadsInd exBuffer)); | |
710 } | 689 } |
711 | 690 |
712 const char* name() const override { return "AAHairlineBatch"; } | 691 const char* name() const override { return "AAHairlineBatch"; } |
713 | 692 |
714 void getInvariantOutputColor(GrInitInvariantOutput* out) const override { | 693 void getInvariantOutputColor(GrInitInvariantOutput* out) const override { |
715 // When this is called on a batch, there is only one geometry bundle | 694 // When this is called on a batch, there is only one geometry bundle |
716 out->setKnownFourComponents(fGeoData[0].fColor); | 695 out->setKnownFourComponents(fGeoData[0].fColor); |
717 } | 696 } |
718 void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override { | 697 void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override { |
719 out->setUnknownSingleComponent(); | 698 out->setUnknownSingleComponent(); |
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737 | 716 |
738 void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline ) override; | 717 void generateGeometry(GrBatchTarget* batchTarget, const GrPipeline* pipeline ) override; |
739 | 718 |
740 SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } | 719 SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; } |
741 | 720 |
742 private: | 721 private: |
743 typedef SkTArray<SkPoint, true> PtArray; | 722 typedef SkTArray<SkPoint, true> PtArray; |
744 typedef SkTArray<int, true> IntArray; | 723 typedef SkTArray<int, true> IntArray; |
745 typedef SkTArray<float, true> FloatArray; | 724 typedef SkTArray<float, true> FloatArray; |
746 | 725 |
747 AAHairlineBatch(const Geometry& geometry, const GrIndexBuffer* linesIndexBuf fer, | 726 AAHairlineBatch(const Geometry& geometry) { |
748 const GrIndexBuffer* quadsIndexBuffer) | |
749 : fLinesIndexBuffer(linesIndexBuffer) | |
750 , fQuadsIndexBuffer(quadsIndexBuffer) { | |
751 SkASSERT(linesIndexBuffer && quadsIndexBuffer); | |
752 this->initClassID<AAHairlineBatch>(); | 727 this->initClassID<AAHairlineBatch>(); |
753 fGeoData.push_back(geometry); | 728 fGeoData.push_back(geometry); |
754 | 729 |
755 // compute bounds | 730 // compute bounds |
756 fBounds = geometry.fPath.getBounds(); | 731 fBounds = geometry.fPath.getBounds(); |
757 geometry.fViewMatrix.mapRect(&fBounds); | 732 geometry.fViewMatrix.mapRect(&fBounds); |
758 } | 733 } |
759 | 734 |
760 bool onCombineIfPossible(GrBatch* t) override { | 735 bool onCombineIfPossible(GrBatch* t) override { |
761 AAHairlineBatch* that = t->cast<AAHairlineBatch>(); | 736 AAHairlineBatch* that = t->cast<AAHairlineBatch>(); |
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800 GrColor fColor; | 775 GrColor fColor; |
801 uint8_t fCoverage; | 776 uint8_t fCoverage; |
802 SkRect fDevBounds; | 777 SkRect fDevBounds; |
803 bool fUsesLocalCoords; | 778 bool fUsesLocalCoords; |
804 bool fColorIgnored; | 779 bool fColorIgnored; |
805 bool fCoverageIgnored; | 780 bool fCoverageIgnored; |
806 }; | 781 }; |
807 | 782 |
808 BatchTracker fBatch; | 783 BatchTracker fBatch; |
809 SkSTArray<1, Geometry, true> fGeoData; | 784 SkSTArray<1, Geometry, true> fGeoData; |
810 const GrIndexBuffer* fLinesIndexBuffer; | |
811 const GrIndexBuffer* fQuadsIndexBuffer; | |
812 }; | 785 }; |
813 | 786 |
814 void AAHairlineBatch::generateGeometry(GrBatchTarget* batchTarget, const GrPipel ine* pipeline) { | 787 void AAHairlineBatch::generateGeometry(GrBatchTarget* batchTarget, const GrPipel ine* pipeline) { |
815 // Setup the viewmatrix and localmatrix for the GrGeometryProcessor. | 788 // Setup the viewmatrix and localmatrix for the GrGeometryProcessor. |
816 SkMatrix invert; | 789 SkMatrix invert; |
817 if (!this->viewMatrix().invert(&invert)) { | 790 if (!this->viewMatrix().invert(&invert)) { |
818 return; | 791 return; |
819 } | 792 } |
820 | 793 |
821 // we will transform to identity space if the viewmatrix does not have persp ective | 794 // we will transform to identity space if the viewmatrix does not have persp ective |
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872 const Geometry& args = fGeoData[i]; | 845 const Geometry& args = fGeoData[i]; |
873 quadCount += gather_lines_and_quads(args.fPath, args.fViewMatrix, args.f DevClipBounds, | 846 quadCount += gather_lines_and_quads(args.fPath, args.fViewMatrix, args.f DevClipBounds, |
874 &lines, &quads, &conics, &qSubdivs, &cWeights); | 847 &lines, &quads, &conics, &qSubdivs, &cWeights); |
875 } | 848 } |
876 | 849 |
877 int lineCount = lines.count() / 2; | 850 int lineCount = lines.count() / 2; |
878 int conicCount = conics.count() / 3; | 851 int conicCount = conics.count() / 3; |
879 | 852 |
880 // do lines first | 853 // do lines first |
881 if (lineCount) { | 854 if (lineCount) { |
855 SkAutoTUnref<const GrIndexBuffer> linesIndexBuffer( | |
856 ref_lines_index_buffer(batchTarget->resourceProvider())); | |
robertphillips
2015/05/04 13:16:00
Check if this fails ? We seem to do it every where
bsalomon
2015/05/04 15:01:09
Done.
| |
882 batchTarget->initDraw(lineGP, pipeline); | 857 batchTarget->initDraw(lineGP, pipeline); |
883 | 858 |
884 // TODO remove this when batch is everywhere | 859 // TODO remove this when batch is everywhere |
885 GrPipelineInfo init; | 860 GrPipelineInfo init; |
886 init.fColorIgnored = fBatch.fColorIgnored; | 861 init.fColorIgnored = fBatch.fColorIgnored; |
887 init.fOverrideColor = GrColor_ILLEGAL; | 862 init.fOverrideColor = GrColor_ILLEGAL; |
888 init.fCoverageIgnored = fBatch.fCoverageIgnored; | 863 init.fCoverageIgnored = fBatch.fCoverageIgnored; |
889 init.fUsesLocalCoords = this->usesLocalCoords(); | 864 init.fUsesLocalCoords = this->usesLocalCoords(); |
890 lineGP->initBatchTracker(batchTarget->currentBatchTracker(), init); | 865 lineGP->initBatchTracker(batchTarget->currentBatchTracker(), init); |
891 | 866 |
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907 SkASSERT(lineGP->getVertexStride() == sizeof(LineVertex)); | 882 SkASSERT(lineGP->getVertexStride() == sizeof(LineVertex)); |
908 | 883 |
909 LineVertex* verts = reinterpret_cast<LineVertex*>(vertices); | 884 LineVertex* verts = reinterpret_cast<LineVertex*>(vertices); |
910 for (int i = 0; i < lineCount; ++i) { | 885 for (int i = 0; i < lineCount; ++i) { |
911 add_line(&lines[2*i], toSrc, this->coverage(), &verts); | 886 add_line(&lines[2*i], toSrc, this->coverage(), &verts); |
912 } | 887 } |
913 | 888 |
914 { | 889 { |
915 GrDrawTarget::DrawInfo info; | 890 GrDrawTarget::DrawInfo info; |
916 info.setVertexBuffer(vertexBuffer); | 891 info.setVertexBuffer(vertexBuffer); |
917 info.setIndexBuffer(fLinesIndexBuffer); | 892 info.setIndexBuffer(linesIndexBuffer); |
918 info.setPrimitiveType(kTriangles_GrPrimitiveType); | 893 info.setPrimitiveType(kTriangles_GrPrimitiveType); |
919 info.setStartIndex(0); | 894 info.setStartIndex(0); |
920 | 895 |
921 int lines = 0; | 896 int lines = 0; |
922 while (lines < lineCount) { | 897 while (lines < lineCount) { |
923 int n = SkTMin(lineCount - lines, kLineSegsNumInIdxBuffer); | 898 int n = SkTMin(lineCount - lines, kLineSegsNumInIdxBuffer); |
924 | 899 |
925 info.setStartVertex(kLineSegNumVertices*lines + firstVertex); | 900 info.setStartVertex(kLineSegNumVertices*lines + firstVertex); |
926 info.setVertexCount(kLineSegNumVertices*n); | 901 info.setVertexCount(kLineSegNumVertices*n); |
927 info.setIndexCount(kIdxsPerLineSeg*n); | 902 info.setIndexCount(kIdxsPerLineSeg*n); |
928 batchTarget->draw(info); | 903 batchTarget->draw(info); |
929 | 904 |
930 lines += n; | 905 lines += n; |
931 } | 906 } |
932 } | 907 } |
933 } | 908 } |
934 | 909 |
935 if (quadCount || conicCount) { | 910 if (quadCount || conicCount) { |
936 const GrVertexBuffer* vertexBuffer; | 911 const GrVertexBuffer* vertexBuffer; |
937 int firstVertex; | 912 int firstVertex; |
938 | 913 |
914 SkAutoTUnref<const GrIndexBuffer> quadsIndexBuffer( | |
915 ref_quads_index_buffer(batchTarget->resourceProvider())); | |
916 | |
939 size_t vertexStride = sizeof(BezierVertex); | 917 size_t vertexStride = sizeof(BezierVertex); |
940 int vertexCount = kQuadNumVertices * quadCount + kQuadNumVertices * coni cCount; | 918 int vertexCount = kQuadNumVertices * quadCount + kQuadNumVertices * coni cCount; |
941 void *vertices = batchTarget->vertexPool()->makeSpace(vertexStride, | 919 void *vertices = batchTarget->vertexPool()->makeSpace(vertexStride, |
942 vertexCount, | 920 vertexCount, |
943 &vertexBuffer, | 921 &vertexBuffer, |
944 &firstVertex); | 922 &firstVertex); |
945 | 923 |
946 if (!vertices) { | 924 if (!vertices || !quadsIndexBuffer) { |
947 SkDebugf("Could not allocate vertices\n"); | 925 SkDebugf("Could not allocate vertices\n"); |
948 return; | 926 return; |
949 } | 927 } |
950 | 928 |
951 // Setup vertices | 929 // Setup vertices |
952 BezierVertex* verts = reinterpret_cast<BezierVertex*>(vertices); | 930 BezierVertex* verts = reinterpret_cast<BezierVertex*>(vertices); |
953 | 931 |
954 int unsubdivQuadCnt = quads.count() / 3; | 932 int unsubdivQuadCnt = quads.count() / 3; |
955 for (int i = 0; i < unsubdivQuadCnt; ++i) { | 933 for (int i = 0; i < unsubdivQuadCnt; ++i) { |
956 SkASSERT(qSubdivs[i] >= 0); | 934 SkASSERT(qSubdivs[i] >= 0); |
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969 GrPipelineInfo init; | 947 GrPipelineInfo init; |
970 init.fColorIgnored = fBatch.fColorIgnored; | 948 init.fColorIgnored = fBatch.fColorIgnored; |
971 init.fOverrideColor = GrColor_ILLEGAL; | 949 init.fOverrideColor = GrColor_ILLEGAL; |
972 init.fCoverageIgnored = fBatch.fCoverageIgnored; | 950 init.fCoverageIgnored = fBatch.fCoverageIgnored; |
973 init.fUsesLocalCoords = this->usesLocalCoords(); | 951 init.fUsesLocalCoords = this->usesLocalCoords(); |
974 quadGP->initBatchTracker(batchTarget->currentBatchTracker(), init); | 952 quadGP->initBatchTracker(batchTarget->currentBatchTracker(), init); |
975 | 953 |
976 { | 954 { |
977 GrDrawTarget::DrawInfo info; | 955 GrDrawTarget::DrawInfo info; |
978 info.setVertexBuffer(vertexBuffer); | 956 info.setVertexBuffer(vertexBuffer); |
979 info.setIndexBuffer(fQuadsIndexBuffer); | 957 info.setIndexBuffer(quadsIndexBuffer); |
980 info.setPrimitiveType(kTriangles_GrPrimitiveType); | 958 info.setPrimitiveType(kTriangles_GrPrimitiveType); |
981 info.setStartIndex(0); | 959 info.setStartIndex(0); |
982 | 960 |
983 int quads = 0; | 961 int quads = 0; |
984 while (quads < quadCount) { | 962 while (quads < quadCount) { |
985 int n = SkTMin(quadCount - quads, kQuadsNumInIdxBuffer); | 963 int n = SkTMin(quadCount - quads, kQuadsNumInIdxBuffer); |
986 | 964 |
987 info.setStartVertex(kQuadNumVertices*quads + firstVertex); | 965 info.setStartVertex(kQuadNumVertices*quads + firstVertex); |
988 info.setVertexCount(kQuadNumVertices*n); | 966 info.setVertexCount(kQuadNumVertices*n); |
989 info.setIndexCount(kIdxsPerQuad*n); | 967 info.setIndexCount(kIdxsPerQuad*n); |
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1001 GrPipelineInfo init; | 979 GrPipelineInfo init; |
1002 init.fColorIgnored = fBatch.fColorIgnored; | 980 init.fColorIgnored = fBatch.fColorIgnored; |
1003 init.fOverrideColor = GrColor_ILLEGAL; | 981 init.fOverrideColor = GrColor_ILLEGAL; |
1004 init.fCoverageIgnored = fBatch.fCoverageIgnored; | 982 init.fCoverageIgnored = fBatch.fCoverageIgnored; |
1005 init.fUsesLocalCoords = this->usesLocalCoords(); | 983 init.fUsesLocalCoords = this->usesLocalCoords(); |
1006 conicGP->initBatchTracker(batchTarget->currentBatchTracker(), init); | 984 conicGP->initBatchTracker(batchTarget->currentBatchTracker(), init); |
1007 | 985 |
1008 { | 986 { |
1009 GrDrawTarget::DrawInfo info; | 987 GrDrawTarget::DrawInfo info; |
1010 info.setVertexBuffer(vertexBuffer); | 988 info.setVertexBuffer(vertexBuffer); |
1011 info.setIndexBuffer(fQuadsIndexBuffer); | 989 info.setIndexBuffer(quadsIndexBuffer); |
1012 info.setPrimitiveType(kTriangles_GrPrimitiveType); | 990 info.setPrimitiveType(kTriangles_GrPrimitiveType); |
1013 info.setStartIndex(0); | 991 info.setStartIndex(0); |
1014 | 992 |
1015 int conics = 0; | 993 int conics = 0; |
1016 while (conics < conicCount) { | 994 while (conics < conicCount) { |
1017 int n = SkTMin(conicCount - conics, kQuadsNumInIdxBuffer); | 995 int n = SkTMin(conicCount - conics, kQuadsNumInIdxBuffer); |
1018 | 996 |
1019 info.setStartVertex(kQuadNumVertices*(quadCount + conics) + firstVertex); | 997 info.setStartVertex(kQuadNumVertices*(quadCount + conics) + firstVertex); |
1020 info.setVertexCount(kQuadNumVertices*n); | 998 info.setVertexCount(kQuadNumVertices*n); |
1021 info.setIndexCount(kIdxsPerQuad*n); | 999 info.setIndexCount(kIdxsPerQuad*n); |
1022 batchTarget->draw(info); | 1000 batchTarget->draw(info); |
1023 | 1001 |
1024 conics += n; | 1002 conics += n; |
1025 } | 1003 } |
1026 } | 1004 } |
1027 } | 1005 } |
1028 } | 1006 } |
1029 } | 1007 } |
1030 | 1008 |
1031 bool GrAAHairLinePathRenderer::onDrawPath(GrDrawTarget* target, | 1009 bool GrAAHairLinePathRenderer::onDrawPath(GrDrawTarget* target, |
1032 GrPipelineBuilder* pipelineBuilder, | 1010 GrPipelineBuilder* pipelineBuilder, |
1033 GrColor color, | 1011 GrColor color, |
1034 const SkMatrix& viewMatrix, | 1012 const SkMatrix& viewMatrix, |
1035 const SkPath& path, | 1013 const SkPath& path, |
1036 const GrStrokeInfo& stroke, | 1014 const GrStrokeInfo& stroke, |
1037 bool) { | 1015 bool) { |
1038 if (!fLinesIndexBuffer || !fQuadsIndexBuffer) { | |
1039 SkDebugf("unable to allocate indices\n"); | |
1040 return false; | |
1041 } | |
1042 | |
1043 SkScalar hairlineCoverage; | 1016 SkScalar hairlineCoverage; |
1044 uint8_t newCoverage = 0xff; | 1017 uint8_t newCoverage = 0xff; |
1045 if (IsStrokeHairlineOrEquivalent(stroke, viewMatrix, &hairlineCoverage)) { | 1018 if (IsStrokeHairlineOrEquivalent(stroke, viewMatrix, &hairlineCoverage)) { |
1046 newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff); | 1019 newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff); |
1047 } | 1020 } |
1048 | 1021 |
1049 SkIRect devClipBounds; | 1022 SkIRect devClipBounds; |
1050 pipelineBuilder->clip().getConservativeBounds(pipelineBuilder->getRenderTarg et(), | 1023 pipelineBuilder->clip().getConservativeBounds(pipelineBuilder->getRenderTarg et(), |
1051 &devClipBounds); | 1024 &devClipBounds); |
1052 | 1025 |
1053 AAHairlineBatch::Geometry geometry; | 1026 AAHairlineBatch::Geometry geometry; |
1054 geometry.fColor = color; | 1027 geometry.fColor = color; |
1055 geometry.fCoverage = newCoverage; | 1028 geometry.fCoverage = newCoverage; |
1056 geometry.fViewMatrix = viewMatrix; | 1029 geometry.fViewMatrix = viewMatrix; |
1057 geometry.fPath = path; | 1030 geometry.fPath = path; |
1058 geometry.fDevClipBounds = devClipBounds; | 1031 geometry.fDevClipBounds = devClipBounds; |
1059 | 1032 |
1060 SkAutoTUnref<GrBatch> batch(AAHairlineBatch::Create(geometry, fLinesIndexBuf fer, | 1033 SkAutoTUnref<GrBatch> batch(AAHairlineBatch::Create(geometry)); |
1061 fQuadsIndexBuffer)); | |
1062 target->drawBatch(pipelineBuilder, batch); | 1034 target->drawBatch(pipelineBuilder, batch); |
1063 | 1035 |
1064 return true; | 1036 return true; |
1065 } | 1037 } |
OLD | NEW |