michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #include "GrPath.h"
michael@0: 
michael@0: GrResourceKey GrPath::ComputeKey(const SkPath& path, const SkStrokeRec& stroke) {
michael@0:     static const GrResourceKey::ResourceType gPathResourceType = GrResourceKey::GenerateResourceType();
michael@0:     static const GrCacheID::Domain gPathDomain = GrCacheID::GenerateDomain();
michael@0: 
michael@0:     GrCacheID::Key key;
michael@0:     uint32_t* keyData = key.fData32;
michael@0:     keyData[0] = path.getGenerationID();
michael@0: 
michael@0:     SK_COMPILE_ASSERT(SkPaint::kJoinCount <= 3, cap_shift_will_be_wrong);
michael@0:     keyData[1] = stroke.needToApply();
michael@0:     if (0 != keyData[1]) {
michael@0:         keyData[1] |= stroke.getJoin() << 1;
michael@0:         keyData[1] |= stroke.getCap() << 3;
michael@0:         keyData[2] = static_cast<uint32_t>(stroke.getMiter());
michael@0:         keyData[3] = static_cast<uint32_t>(stroke.getWidth());
michael@0:     } else {
michael@0:         keyData[2] = 0;
michael@0:         keyData[3] = 0;
michael@0:     }
michael@0: 
michael@0:     return GrResourceKey(GrCacheID(gPathDomain, key), gPathResourceType, 0);
michael@0: }