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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2013 Google Inc. | 3 * Copyright 2013 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 // This test only works with the GPU backend. | 9 // This test only works with the GPU backend. |
10 | 10 |
11 #include "gm.h" | 11 #include "gm.h" |
12 | 12 |
13 #if SK_SUPPORT_GPU | 13 #if SK_SUPPORT_GPU |
14 | 14 |
15 #include "GrContext.h" | 15 #include "GrContext.h" |
16 #include "GrPathUtils.h" | 16 #include "GrPathUtils.h" |
17 #include "GrTest.h" | 17 #include "GrTest.h" |
18 #include "SkColorPriv.h" | 18 #include "SkColorPriv.h" |
19 #include "SkDevice.h" | 19 #include "SkDevice.h" |
20 #include "SkGeometry.h" | 20 #include "SkGeometry.h" |
21 | 21 |
22 #include "effects/GrBezierEffect.h" | 22 #include "effects/GrBezierEffect.h" |
23 | 23 |
24 // Position & KLM line eq values. These are the vertex attributes for Bezier cur
ves. The last value | 24 // Position & KLM line eq values. These are the vertex attributes for Bezier cur
ves. The last value |
25 // of the Vec4f is ignored. | 25 // of the Vec4f is ignored. |
26 namespace { | 26 namespace { |
27 extern const GrVertexAttrib kAttribs[] = { | 27 extern const GrVertexAttrib kAttribs[] = { |
28 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding}, | 28 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding}, |
29 {kVec4f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBinding} | 29 {kVec4f_GrVertexAttribType, sizeof(SkPoint), kEffect_GrVertexAttribBinding} |
30 }; | 30 }; |
31 } | 31 } |
32 | 32 |
33 static inline SkScalar eval_line(const SkPoint& p, const SkScalar lineEq[3], SkS
calar sign) { | 33 static inline SkScalar eval_line(const SkPoint& p, const SkScalar lineEq[3], SkS
calar sign) { |
34 return sign * (lineEq[0] * p.fX + lineEq[1] * p.fY + lineEq[2]); | 34 return sign * (lineEq[0] * p.fX + lineEq[1] * p.fY + lineEq[2]); |
35 } | 35 } |
36 | 36 |
37 namespace skiagm { | 37 namespace skiagm { |
38 /** | 38 /** |
39 * This GM directly exercises effects that draw Bezier curves in the GPU backend
. | 39 * This GM directly exercises effects that draw Bezier curves in the GPU backend
. |
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494 boundsPaint.setStrokeWidth(0); | 494 boundsPaint.setStrokeWidth(0); |
495 boundsPaint.setStyle(SkPaint::kStroke_Style); | 495 boundsPaint.setStyle(SkPaint::kStroke_Style); |
496 canvas->drawRect(bounds, boundsPaint); | 496 canvas->drawRect(bounds, boundsPaint); |
497 | 497 |
498 Vertex verts[4]; | 498 Vertex verts[4]; |
499 verts[0].fPosition.setRectFan(bounds.fLeft, bounds.fTop, | 499 verts[0].fPosition.setRectFan(bounds.fLeft, bounds.fTop, |
500 bounds.fRight, bounds.fBottom, | 500 bounds.fRight, bounds.fBottom, |
501 sizeof(Vertex)); | 501 sizeof(Vertex)); |
502 | 502 |
503 GrPathUtils::QuadUVMatrix DevToUV(pts); | 503 GrPathUtils::QuadUVMatrix DevToUV(pts); |
504 DevToUV.apply<4, sizeof(Vertex), sizeof(GrPoint)>(verts); | 504 DevToUV.apply<4, sizeof(Vertex), sizeof(SkPoint)>(verts); |
505 | 505 |
506 GrTestTarget tt; | 506 GrTestTarget tt; |
507 context->getTestTarget(&tt); | 507 context->getTestTarget(&tt); |
508 SkASSERT(NULL != tt.target()); | 508 SkASSERT(NULL != tt.target()); |
509 GrDrawState* drawState = tt.target()->drawState(); | 509 GrDrawState* drawState = tt.target()->drawState(); |
510 drawState->setVertexAttribs<kAttribs>(2); | 510 drawState->setVertexAttribs<kAttribs>(2); |
511 | 511 |
512 drawState->addCoverageEffect(effect, 1); | 512 drawState->addCoverageEffect(effect, 1); |
513 drawState->setRenderTarget(rt); | 513 drawState->setRenderTarget(rt); |
514 drawState->setColor(0xff000000); | 514 drawState->setColor(0xff000000); |
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530 typedef GM INHERITED; | 530 typedef GM INHERITED; |
531 }; | 531 }; |
532 | 532 |
533 DEF_GM( return SkNEW(BezierCubicEffects); ) | 533 DEF_GM( return SkNEW(BezierCubicEffects); ) |
534 DEF_GM( return SkNEW(BezierConicEffects); ) | 534 DEF_GM( return SkNEW(BezierConicEffects); ) |
535 DEF_GM( return SkNEW(BezierQuadEffects); ) | 535 DEF_GM( return SkNEW(BezierQuadEffects); ) |
536 | 536 |
537 } | 537 } |
538 | 538 |
539 #endif | 539 #endif |
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