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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "GrOvalRenderer.h" | 8 #include "GrOvalRenderer.h" |
9 | 9 |
10 #include "GrEffect.h" | 10 #include "GrEffect.h" |
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299 } else if (vm.rectStaysRect()) { | 299 } else if (vm.rectStaysRect()) { |
300 return drawEllipse(target, paint, oval, stroke); | 300 return drawEllipse(target, paint, oval, stroke); |
301 | 301 |
302 } else { | 302 } else { |
303 return false; | 303 return false; |
304 } | 304 } |
305 | 305 |
306 return true; | 306 return true; |
307 } | 307 } |
308 | 308 |
| 309 namespace { |
| 310 |
| 311 // position + edge |
| 312 extern const GrVertexAttrib gCircleVertexAttribs[] = { |
| 313 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding
}, |
| 314 {kVec4f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBinding} |
| 315 }; |
| 316 |
| 317 }; |
| 318 |
309 void GrOvalRenderer::drawCircle(GrDrawTarget* target, | 319 void GrOvalRenderer::drawCircle(GrDrawTarget* target, |
310 const GrPaint& paint, | 320 const GrPaint& paint, |
311 const GrRect& circle, | 321 const GrRect& circle, |
312 const SkStrokeRec& stroke) | 322 const SkStrokeRec& stroke) |
313 { | 323 { |
314 GrDrawState* drawState = target->drawState(); | 324 GrDrawState* drawState = target->drawState(); |
315 | 325 |
316 const SkMatrix& vm = drawState->getViewMatrix(); | 326 const SkMatrix& vm = drawState->getViewMatrix(); |
317 GrPoint center = GrPoint::Make(circle.centerX(), circle.centerY()); | 327 GrPoint center = GrPoint::Make(circle.centerX(), circle.centerY()); |
318 vm.mapPoints(¢er, 1); | 328 vm.mapPoints(¢er, 1); |
319 SkScalar radius = vm.mapRadius(SkScalarHalf(circle.width())); | 329 SkScalar radius = vm.mapRadius(SkScalarHalf(circle.width())); |
320 SkScalar strokeWidth = vm.mapRadius(stroke.getWidth()); | 330 SkScalar strokeWidth = vm.mapRadius(stroke.getWidth()); |
321 | 331 |
322 GrDrawState::AutoDeviceCoordDraw adcd(drawState); | 332 GrDrawState::AutoDeviceCoordDraw adcd(drawState); |
323 if (!adcd.succeeded()) { | 333 if (!adcd.succeeded()) { |
324 return; | 334 return; |
325 } | 335 } |
326 | 336 |
327 // position + edge | 337 drawState->setVertexAttribs<gCircleVertexAttribs>(SK_ARRAY_COUNT(gCircleVert
exAttribs)); |
328 static const GrVertexAttrib kVertexAttribs[] = { | |
329 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding}, | |
330 {kVec4f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBindi
ng} | |
331 }; | |
332 drawState->setVertexAttribs(kVertexAttribs, SK_ARRAY_COUNT(kVertexAttribs)); | |
333 GrAssert(sizeof(CircleVertex) == drawState->getVertexSize()); | 338 GrAssert(sizeof(CircleVertex) == drawState->getVertexSize()); |
334 | 339 |
335 GrDrawTarget::AutoReleaseGeometry geo(target, 4, 0); | 340 GrDrawTarget::AutoReleaseGeometry geo(target, 4, 0); |
336 if (!geo.succeeded()) { | 341 if (!geo.succeeded()) { |
337 GrPrintf("Failed to get space for vertices!\n"); | 342 GrPrintf("Failed to get space for vertices!\n"); |
338 return; | 343 return; |
339 } | 344 } |
340 | 345 |
341 CircleVertex* verts = reinterpret_cast<CircleVertex*>(geo.vertices()); | 346 CircleVertex* verts = reinterpret_cast<CircleVertex*>(geo.vertices()); |
342 | 347 |
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399 verts[2].fInnerRadius = innerRadius; | 404 verts[2].fInnerRadius = innerRadius; |
400 | 405 |
401 verts[3].fPos = SkPoint::Make(bounds.fRight, bounds.fBottom); | 406 verts[3].fPos = SkPoint::Make(bounds.fRight, bounds.fBottom); |
402 verts[3].fOffset = SkPoint::Make(outerRadius, outerRadius); | 407 verts[3].fOffset = SkPoint::Make(outerRadius, outerRadius); |
403 verts[3].fOuterRadius = outerRadius; | 408 verts[3].fOuterRadius = outerRadius; |
404 verts[3].fInnerRadius = innerRadius; | 409 verts[3].fInnerRadius = innerRadius; |
405 | 410 |
406 target->drawNonIndexed(kTriangleStrip_GrPrimitiveType, 0, 4, &bounds); | 411 target->drawNonIndexed(kTriangleStrip_GrPrimitiveType, 0, 4, &bounds); |
407 } | 412 } |
408 | 413 |
| 414 namespace { |
| 415 |
| 416 // position + edge |
| 417 extern const GrVertexAttrib gEllipseVertexAttribs[] = { |
| 418 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBindi
ng}, |
| 419 {kVec2f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBinding
}, |
| 420 {kVec4f_GrVertexAttribType, 2*sizeof(GrPoint), kEffect_GrVertexAttribBinding
} |
| 421 }; |
| 422 |
| 423 }; |
| 424 |
409 bool GrOvalRenderer::drawEllipse(GrDrawTarget* target, | 425 bool GrOvalRenderer::drawEllipse(GrDrawTarget* target, |
410 const GrPaint& paint, | 426 const GrPaint& paint, |
411 const GrRect& ellipse, | 427 const GrRect& ellipse, |
412 const SkStrokeRec& stroke) | 428 const SkStrokeRec& stroke) |
413 { | 429 { |
414 GrDrawState* drawState = target->drawState(); | 430 GrDrawState* drawState = target->drawState(); |
415 #ifdef SK_DEBUG | 431 #ifdef SK_DEBUG |
416 { | 432 { |
417 // we should have checked for this previously | 433 // we should have checked for this previously |
418 bool isAxisAlignedEllipse = drawState->getViewMatrix().rectStaysRect(); | 434 bool isAxisAlignedEllipse = drawState->getViewMatrix().rectStaysRect(); |
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438 SkVector scaledStroke; | 454 SkVector scaledStroke; |
439 SkScalar strokeWidth = stroke.getWidth(); | 455 SkScalar strokeWidth = stroke.getWidth(); |
440 scaledStroke.fX = SkScalarAbs(strokeWidth*(vm[SkMatrix::kMScaleX] + vm[SkMat
rix::kMSkewY])); | 456 scaledStroke.fX = SkScalarAbs(strokeWidth*(vm[SkMatrix::kMScaleX] + vm[SkMat
rix::kMSkewY])); |
441 scaledStroke.fY = SkScalarAbs(strokeWidth*(vm[SkMatrix::kMSkewX] + vm[SkMatr
ix::kMScaleY])); | 457 scaledStroke.fY = SkScalarAbs(strokeWidth*(vm[SkMatrix::kMSkewX] + vm[SkMatr
ix::kMScaleY])); |
442 | 458 |
443 GrDrawState::AutoDeviceCoordDraw adcd(drawState); | 459 GrDrawState::AutoDeviceCoordDraw adcd(drawState); |
444 if (!adcd.succeeded()) { | 460 if (!adcd.succeeded()) { |
445 return false; | 461 return false; |
446 } | 462 } |
447 | 463 |
448 // position + edge | 464 drawState->setVertexAttribs<gEllipseVertexAttribs>(SK_ARRAY_COUNT(gEllipseVe
rtexAttribs)); |
449 static const GrVertexAttrib kVertexAttribs[] = { | |
450 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding}, | |
451 {kVec2f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBindi
ng}, | |
452 {kVec4f_GrVertexAttribType, 2*sizeof(GrPoint), kEffect_GrVertexAttribBin
ding} | |
453 }; | |
454 drawState->setVertexAttribs(kVertexAttribs, SK_ARRAY_COUNT(kVertexAttribs)); | |
455 GrAssert(sizeof(EllipseVertex) == drawState->getVertexSize()); | 465 GrAssert(sizeof(EllipseVertex) == drawState->getVertexSize()); |
456 | 466 |
457 GrDrawTarget::AutoReleaseGeometry geo(target, 4, 0); | 467 GrDrawTarget::AutoReleaseGeometry geo(target, 4, 0); |
458 if (!geo.succeeded()) { | 468 if (!geo.succeeded()) { |
459 GrPrintf("Failed to get space for vertices!\n"); | 469 GrPrintf("Failed to get space for vertices!\n"); |
460 return false; | 470 return false; |
461 } | 471 } |
462 | 472 |
463 EllipseVertex* verts = reinterpret_cast<EllipseVertex*>(geo.vertices()); | 473 EllipseVertex* verts = reinterpret_cast<EllipseVertex*>(geo.vertices()); |
464 | 474 |
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541 verts[3].fPos = SkPoint::Make(bounds.fRight, bounds.fBottom); | 551 verts[3].fPos = SkPoint::Make(bounds.fRight, bounds.fBottom); |
542 verts[3].fOuterXRadius = xRadius; | 552 verts[3].fOuterXRadius = xRadius; |
543 verts[3].fInnerXRadius = innerXRadius; | 553 verts[3].fInnerXRadius = innerXRadius; |
544 verts[3].fOuterOffset = SkPoint::Make(xRadius, outerRatio*yRadius); | 554 verts[3].fOuterOffset = SkPoint::Make(xRadius, outerRatio*yRadius); |
545 verts[3].fInnerOffset = SkPoint::Make(xRadius, innerRatio*yRadius); | 555 verts[3].fInnerOffset = SkPoint::Make(xRadius, innerRatio*yRadius); |
546 | 556 |
547 target->drawNonIndexed(kTriangleStrip_GrPrimitiveType, 0, 4, &bounds); | 557 target->drawNonIndexed(kTriangleStrip_GrPrimitiveType, 0, 4, &bounds); |
548 | 558 |
549 return true; | 559 return true; |
550 } | 560 } |
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