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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "GrRRectEffect.h" | 8 #include "GrRRectEffect.h" |
9 | 9 |
10 #include "gl/GrGLEffect.h" | 10 #include "gl/GrGLEffect.h" |
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362 rect.fBottom -= radius; | 362 rect.fBottom -= radius; |
363 break; | 363 break; |
364 case CircularRRectEffect::kBottom_CornerFlags: | 364 case CircularRRectEffect::kBottom_CornerFlags: |
365 radius = rrect.radii(SkRRect::kLowerLeft_Corner).fX; | 365 radius = rrect.radii(SkRRect::kLowerLeft_Corner).fX; |
366 rect.fLeft += radius; | 366 rect.fLeft += radius; |
367 rect.fTop -= 0.5f; | 367 rect.fTop -= 0.5f; |
368 rect.fRight -= radius; | 368 rect.fRight -= radius; |
369 rect.fBottom -= radius; | 369 rect.fBottom -= radius; |
370 break; | 370 break; |
371 default: | 371 default: |
372 GrCrash("Should have been one of the above cases."); | 372 SkFAIL("Should have been one of the above cases."); |
373 } | 373 } |
374 uman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.f
Bottom); | 374 uman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.f
Bottom); |
375 uman.set1f(fRadiusPlusHalfUniform, radius + 0.5f); | 375 uman.set1f(fRadiusPlusHalfUniform, radius + 0.5f); |
376 fPrevRRect = rrect; | 376 fPrevRRect = rrect; |
377 } | 377 } |
378 } | 378 } |
379 | 379 |
380 ////////////////////////////////////////////////////////////////////////////// | 380 ////////////////////////////////////////////////////////////////////////////// |
381 | 381 |
382 class GLEllipticalRRectEffect; | 382 class GLEllipticalRRectEffect; |
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559 &invRadiiLTRBSqdName); | 559 &invRadiiLTRBSqdName); |
560 builder->fsCodeAppend("\t\tvec2 dxy = max(max(dxy0, dxy1), 0.0);\n")
; | 560 builder->fsCodeAppend("\t\tvec2 dxy = max(max(dxy0, dxy1), 0.0);\n")
; |
561 // Z is the x/y offsets divided by squared radii. We only care about
the (at most) one | 561 // Z is the x/y offsets divided by squared radii. We only care about
the (at most) one |
562 // corner where both the x and y offsets are positive, hence the max
es. (The inverse | 562 // corner where both the x and y offsets are positive, hence the max
es. (The inverse |
563 // squared radii will always be positive.) | 563 // squared radii will always be positive.) |
564 builder->fsCodeAppendf("\t\tvec2 Z = max(max(dxy0 * %s.xy, dxy1 * %s
.zw), 0.0);\n", | 564 builder->fsCodeAppendf("\t\tvec2 Z = max(max(dxy0 * %s.xy, dxy1 * %s
.zw), 0.0);\n", |
565 invRadiiLTRBSqdName, invRadiiLTRBSqdName); | 565 invRadiiLTRBSqdName, invRadiiLTRBSqdName); |
566 break; | 566 break; |
567 } | 567 } |
568 default: | 568 default: |
569 GrCrash("RRect should always be simple or nine-patch."); | 569 SkFAIL("RRect should always be simple or nine-patch."); |
570 } | 570 } |
571 // implicit is the evaluation of (x/a)^2 + (y/b)^2 - 1. | 571 // implicit is the evaluation of (x/a)^2 + (y/b)^2 - 1. |
572 builder->fsCodeAppend("\t\tfloat implicit = dot(Z, dxy) - 1.0;\n"); | 572 builder->fsCodeAppend("\t\tfloat implicit = dot(Z, dxy) - 1.0;\n"); |
573 // grad_dot is the squared length of the gradient of the implicit. | 573 // grad_dot is the squared length of the gradient of the implicit. |
574 builder->fsCodeAppendf("\t\tfloat grad_dot = 4.0 * dot(Z, Z);\n"); | 574 builder->fsCodeAppendf("\t\tfloat grad_dot = 4.0 * dot(Z, Z);\n"); |
575 // avoid calling inversesqrt on zero. | 575 // avoid calling inversesqrt on zero. |
576 builder->fsCodeAppend("\t\tgrad_dot = max(grad_dot, 1.0e-4);\n"); | 576 builder->fsCodeAppend("\t\tgrad_dot = max(grad_dot, 1.0e-4);\n"); |
577 builder->fsCodeAppendf("\t\tfloat approx_dist = implicit * inversesqrt(grad_
dot);\n"); | 577 builder->fsCodeAppendf("\t\tfloat approx_dist = implicit * inversesqrt(grad_
dot);\n"); |
578 | 578 |
579 if (kFillAA_GrEffectEdgeType == erre.getEdgeType()) { | 579 if (kFillAA_GrEffectEdgeType == erre.getEdgeType()) { |
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616 rect.fTop += r0.fY; | 616 rect.fTop += r0.fY; |
617 rect.fRight -= r1.fX; | 617 rect.fRight -= r1.fX; |
618 rect.fBottom -= r1.fY; | 618 rect.fBottom -= r1.fY; |
619 uman.set4f(fInvRadiiSqdUniform, 1.f / (r0.fX * r0.fX), | 619 uman.set4f(fInvRadiiSqdUniform, 1.f / (r0.fX * r0.fX), |
620 1.f / (r0.fY * r0.fY), | 620 1.f / (r0.fY * r0.fY), |
621 1.f / (r1.fX * r1.fX), | 621 1.f / (r1.fX * r1.fX), |
622 1.f / (r1.fY * r1.fY)); | 622 1.f / (r1.fY * r1.fY)); |
623 break; | 623 break; |
624 } | 624 } |
625 default: | 625 default: |
626 GrCrash("RRect should always be simple or nine-patch."); | 626 SkFAIL("RRect should always be simple or nine-patch."); |
627 } | 627 } |
628 uman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.f
Bottom); | 628 uman.set4f(fInnerRectUniform, rect.fLeft, rect.fTop, rect.fRight, rect.f
Bottom); |
629 fPrevRRect = rrect; | 629 fPrevRRect = rrect; |
630 } | 630 } |
631 } | 631 } |
632 | 632 |
633 ////////////////////////////////////////////////////////////////////////////// | 633 ////////////////////////////////////////////////////////////////////////////// |
634 | 634 |
635 GrEffectRef* GrRRectEffect::Create(GrEffectEdgeType edgeType, const SkRRect& rre
ct) { | 635 GrEffectRef* GrRRectEffect::Create(GrEffectEdgeType edgeType, const SkRRect& rre
ct) { |
636 if (rrect.isRect()) { | 636 if (rrect.isRect()) { |
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721 if (rrect.isNinePatch()) { | 721 if (rrect.isNinePatch()) { |
722 return EllipticalRRectEffect::Create(edgeType, rrect); | 722 return EllipticalRRectEffect::Create(edgeType, rrect); |
723 } | 723 } |
724 return NULL; | 724 return NULL; |
725 } | 725 } |
726 } | 726 } |
727 } | 727 } |
728 | 728 |
729 return NULL; | 729 return NULL; |
730 } | 730 } |
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