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Side by Side Diff: src/gpu/GrAAConvexPathRenderer.cpp

Issue 14328009: Vertex Attrib configurations now handled as pointers vs. SkSTArrays (Closed) Base URL: http://skia.googlecode.com/svn/trunk/
Patch Set: Added "extern const" & removed comment Created 7 years, 8 months ago
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1 1
2 /* 2 /*
3 * Copyright 2012 Google Inc. 3 * Copyright 2012 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 #include "GrAAConvexPathRenderer.h" 9 #include "GrAAConvexPathRenderer.h"
10 10
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551 /////////////////////////////////////////////////////////////////////////////// 551 ///////////////////////////////////////////////////////////////////////////////
552 552
553 bool GrAAConvexPathRenderer::canDrawPath(const SkPath& path, 553 bool GrAAConvexPathRenderer::canDrawPath(const SkPath& path,
554 const SkStrokeRec& stroke, 554 const SkStrokeRec& stroke,
555 const GrDrawTarget* target, 555 const GrDrawTarget* target,
556 bool antiAlias) const { 556 bool antiAlias) const {
557 return (target->caps()->shaderDerivativeSupport() && antiAlias && 557 return (target->caps()->shaderDerivativeSupport() && antiAlias &&
558 stroke.isFillStyle() && !path.isInverseFillType() && path.isConvex() ); 558 stroke.isFillStyle() && !path.isInverseFillType() && path.isConvex() );
559 } 559 }
560 560
561 namespace {
562
563 // position + edge
564 extern const GrVertexAttrib gPathAttribs[] = {
565 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBinding },
566 {kVec4f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBinding}
567 };
568
569 };
570
561 bool GrAAConvexPathRenderer::onDrawPath(const SkPath& origPath, 571 bool GrAAConvexPathRenderer::onDrawPath(const SkPath& origPath,
562 const SkStrokeRec&, 572 const SkStrokeRec&,
563 GrDrawTarget* target, 573 GrDrawTarget* target,
564 bool antiAlias) { 574 bool antiAlias) {
565 575
566 const SkPath* path = &origPath; 576 const SkPath* path = &origPath;
567 if (path->isEmpty()) { 577 if (path->isEmpty()) {
568 return true; 578 return true;
569 } 579 }
570 580
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595 enum { 605 enum {
596 kPreallocSegmentCnt = 512 / sizeof(Segment), 606 kPreallocSegmentCnt = 512 / sizeof(Segment),
597 }; 607 };
598 SkSTArray<kPreallocSegmentCnt, Segment, true> segments; 608 SkSTArray<kPreallocSegmentCnt, Segment, true> segments;
599 SkPoint fanPt; 609 SkPoint fanPt;
600 610
601 if (!get_segments(*path, *vm, &segments, &fanPt, &vCount, &iCount)) { 611 if (!get_segments(*path, *vm, &segments, &fanPt, &vCount, &iCount)) {
602 return false; 612 return false;
603 } 613 }
604 614
605 // position + edge 615 drawState->setVertexAttribs<gPathAttribs>(SK_ARRAY_COUNT(gPathAttribs));
606 static const GrVertexAttrib kAttribs[] = {
607 {kVec2f_GrVertexAttribType, 0, kPosition_GrVertexAttribBin ding},
608 {kVec4f_GrVertexAttribType, sizeof(GrPoint), kEffect_GrVertexAttribBindi ng}
609 };
610 drawState->setVertexAttribs(kAttribs, SK_ARRAY_COUNT(kAttribs));
611 616
612 enum { 617 enum {
613 // the edge effects share this stage with glyph rendering 618 // the edge effects share this stage with glyph rendering
614 // (kGlyphMaskStage in GrTextContext) && SW path rendering 619 // (kGlyphMaskStage in GrTextContext) && SW path rendering
615 // (kPathMaskStage in GrSWMaskHelper) 620 // (kPathMaskStage in GrSWMaskHelper)
616 kEdgeEffectStage = GrPaint::kTotalStages, 621 kEdgeEffectStage = GrPaint::kTotalStages,
617 }; 622 };
618 static const int kEdgeAttrIndex = 1; 623 static const int kEdgeAttrIndex = 1;
619 GrEffectRef* quadEffect = QuadEdgeEffect::Create(); 624 GrEffectRef* quadEffect = QuadEdgeEffect::Create();
620 drawState->setEffect(kEdgeEffectStage, quadEffect, kEdgeAttrIndex)->unref(); 625 drawState->setEffect(kEdgeEffectStage, quadEffect, kEdgeAttrIndex)->unref();
621 626
622 GrDrawTarget::AutoReleaseGeometry arg(target, vCount, iCount); 627 GrDrawTarget::AutoReleaseGeometry arg(target, vCount, iCount);
623 if (!arg.succeeded()) { 628 if (!arg.succeeded()) {
624 return false; 629 return false;
625 } 630 }
626 GrAssert(sizeof(QuadVertex) == drawState->getVertexSize()); 631 GrAssert(sizeof(QuadVertex) == drawState->getVertexSize());
627 verts = reinterpret_cast<QuadVertex*>(arg.vertices()); 632 verts = reinterpret_cast<QuadVertex*>(arg.vertices());
628 idxs = reinterpret_cast<uint16_t*>(arg.indices()); 633 idxs = reinterpret_cast<uint16_t*>(arg.indices());
629 634
630 create_vertices(segments, fanPt, verts, idxs); 635 create_vertices(segments, fanPt, verts, idxs);
631 636
632 target->drawIndexed(kTriangles_GrPrimitiveType, 637 target->drawIndexed(kTriangles_GrPrimitiveType,
633 0, // start vertex 638 0, // start vertex
634 0, // start index 639 0, // start index
635 vCount, 640 vCount,
636 iCount); 641 iCount);
637 642
638 return true; 643 return true;
639 } 644 }
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