Replace GrStrokeInfo with GrStyle.

src/gpu/GrStrokeInfo.cpp

-/*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GrStrokeInfo.h"
-#include "GrResourceKey.h"
-#include "SkDashPathPriv.h"
-
-bool all_dash_intervals_zero(const SkScalar* intervals, int count) {
-    for (int i = 0 ; i < count; ++i) {
-        if (intervals[i] != 0) {
-            return false;
-        }
-    }
-    return true;
-}
-
-bool GrStrokeInfo::applyDashToPath(SkPath* dst, GrStrokeInfo* dstStrokeInfo,
-                                   const SkPath& src) const {
-    if (this->isDashed()) {
-        SkPathEffect::DashInfo info;
-        info.fIntervals = fIntervals.get();
-        info.fCount = fIntervals.count();
-        info.fPhase = fDashPhase;
-        GrStrokeInfo filteredStroke(*this, false);
-        // Handle the case where all intervals are 0 and we simply drop the dash effect
-        if (all_dash_intervals_zero(fIntervals.get(), fIntervals.count())) {
-            *dstStrokeInfo = filteredStroke;
-            *dst = src;
-            return true;
-        }
-        // See if we can filter the dash into a path on cpu
-        if (SkDashPath::FilterDashPath(dst, src, &filteredStroke, nullptr, info)) {
-            *dstStrokeInfo = filteredStroke;
-            return true;
-        }
-    }
-    return false;
-}
-
-void GrStrokeInfo::asUniqueKeyFragment(uint32_t* data) const {
-    const int kSkScalarData32Cnt = sizeof(SkScalar) / sizeof(uint32_t);
-    enum {
-        kStyleBits = 2,
-        kJoinBits = 2,
-        kCapBits = 32 - kStyleBits - kJoinBits,
-
-        kJoinShift = kStyleBits,
-        kCapShift = kJoinShift + kJoinBits,
-    };
-
-    static_assert(SkStrokeRec::kStyleCount <= (1 << kStyleBits), "style_shift_will_be_wrong");
-    static_assert(SkPaint::kJoinCount <= (1 << kJoinBits), "cap_shift_will_be_wrong");
-    static_assert(SkPaint::kCapCount <= (1 << kCapBits), "cap_does_not_fit");
-    uint32_t styleKey = this->getStyle();
-    if (this->needToApply()) {
-        styleKey |= this->getJoin() << kJoinShift;
-        styleKey |= this->getCap() << kCapShift;
-    }
-    int i = 0;
-    data[i++] = styleKey;
-
-    // Memcpy the scalar fields. Does not "reinterpret_cast<SkScalar&>(data[i]) = ..." due to
-    // scalars having more strict alignment requirements than what data can guarantee. The
-    // compiler should optimize memcpys to assignments.
-    SkScalar scalar;
-    scalar = this->getMiter();
-    memcpy(&data[i], &scalar, sizeof(scalar));
-    i += kSkScalarData32Cnt;
-
-    scalar = this->getWidth();
-    memcpy(&data[i], &scalar, sizeof(scalar));
-    i += kSkScalarData32Cnt;
-
-    if (this->isDashed()) {
-        SkScalar phase = this->getDashPhase();
-        memcpy(&data[i], &phase, sizeof(phase));
-        i += kSkScalarData32Cnt;
-
-        int32_t count = this->getDashCount() & static_cast<int32_t>(~1);
-        SkASSERT(count == this->getDashCount());
-        const SkScalar* intervals = this->getDashIntervals();
-        int intervalByteCnt = count * sizeof(SkScalar);
-        memcpy(&data[i], intervals, intervalByteCnt);
-        // Enable the line below if fields are added after dashing.
-        SkDEBUGCODE(i += kSkScalarData32Cnt * count);
-    }
-
-    SkASSERT(this->computeUniqueKeyFragmentData32Cnt() == i);
-}