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-rw-r--r--src/core/SkAnalyticEdge.cpp6
-rw-r--r--src/core/SkAnalyticEdge.h12
-rw-r--r--src/core/SkScan.h5
-rw-r--r--src/core/SkScan_AAAPath.cpp12
4 files changed, 15 insertions, 20 deletions
diff --git a/src/core/SkAnalyticEdge.cpp b/src/core/SkAnalyticEdge.cpp
index 199fc4ef33..213262f3b2 100644
--- a/src/core/SkAnalyticEdge.cpp
+++ b/src/core/SkAnalyticEdge.cpp
@@ -39,7 +39,11 @@ bool SkAnalyticEdge::updateLine(SkFixed x0, SkFixed y0, SkFixed x1, SkFixed y1,
fY = y0;
fUpperY = y0;
fLowerY = y1;
+#ifdef SK_SUPPORT_LEGACY_AAA
fDY = (absSlope | dx) == 0
+#else
+ fDY = (dx == 0 || slope == 0)
+#endif
? SK_MaxS32
: absSlope < kInverseTableSize
? QuickFDot6Inverse::Lookup(absSlope)
@@ -113,7 +117,7 @@ bool SkAnalyticQuadraticEdge::updateQuadratic() {
#ifndef SK_SUPPORT_LEGACY_AAA
SkASSERT(slope == SK_MaxS32 ||
SkAbs32(fSnappedX + SkFixedMul(slope, newSnappedY - fSnappedY) - newSnappedX)
- < SK_FixedHalf);
+ < SkFixedMul(SK_Fixed1 >> 4, SkTMax(SK_Fixed1, SkAbs32(slope))));
#endif
dx += fQEdge.fQDDx;
dy += fQEdge.fQDDy;
diff --git a/src/core/SkAnalyticEdge.h b/src/core/SkAnalyticEdge.h
index 1ed25f39ea..c70772db00 100644
--- a/src/core/SkAnalyticEdge.h
+++ b/src/core/SkAnalyticEdge.h
@@ -10,11 +10,6 @@
#include "SkEdge.h"
-// Use this to check that we successfully guard the change against Chromium layout tests
-#ifndef SK_SUPPORT_LEGACY_AAA
-# define SK_SUPPORT_LEGACY_AAA
-#endif
-
struct SkAnalyticEdge {
// Similar to SkEdge, the conic edges will be converted to quadratic edges
enum Type {
@@ -166,7 +161,6 @@ bool SkAnalyticEdge::setLine(const SkPoint& p0, const SkPoint& p1) {
SkFDot6 dy = SkFixedToFDot6(y1 - y0);
SkFDot6 dx = SkFixedToFDot6(x1 - x0);
SkFixed slope = dy ? QuickSkFDot6Div(dx, dy) : SK_MaxS32;
- SkASSERT(dx == 0 || slope != 0);
SkFixed absSlope = SkAbs32(slope);
#endif
@@ -179,9 +173,9 @@ bool SkAnalyticEdge::setLine(const SkPoint& p0, const SkPoint& p1) {
#ifdef SK_SUPPORT_LEGACY_AAA
fDY = x1 != x0 ? SkAbs32(SkFixedDiv(y1 - y0, x1 - x0)) : SK_MaxS32;
#else
- fDY = dx == 0 ? SK_MaxS32 : absSlope < kInverseTableSize
- ? QuickFDot6Inverse::Lookup(absSlope)
- : SkAbs32(QuickSkFDot6Div(dy, dx));
+ fDY = dx == 0 || slope == 0 ? SK_MaxS32 : absSlope < kInverseTableSize
+ ? QuickFDot6Inverse::Lookup(absSlope)
+ : SkAbs32(QuickSkFDot6Div(dy, dx));
#endif
fCurveCount = 0;
fWinding = SkToS8(winding);
diff --git a/src/core/SkScan.h b/src/core/SkScan.h
index d0c10faf5c..c99554218b 100644
--- a/src/core/SkScan.h
+++ b/src/core/SkScan.h
@@ -23,11 +23,6 @@ class SkPath;
*/
typedef SkIRect SkXRect;
-// Use this to check that we successfully guard the change against Chromium layout tests
-#ifndef SK_SUPPORT_LEGACY_AAA
-# define SK_SUPPORT_LEGACY_AAA
-#endif
-
extern std::atomic<bool> gSkUseAnalyticAA;
extern std::atomic<bool> gSkForceAnalyticAA;
diff --git a/src/core/SkScan_AAAPath.cpp b/src/core/SkScan_AAAPath.cpp
index 126322820f..af45f0094f 100644
--- a/src/core/SkScan_AAAPath.cpp
+++ b/src/core/SkScan_AAAPath.cpp
@@ -736,14 +736,14 @@ static void blit_aaa_trapezoid_row(AdditiveBlitter* blitter, int y,
int uL = SkFixedFloorToInt(ul);
int lL = SkFixedCeilToInt(ll);
if (uL + 2 == lL) { // We only need to compute two triangles, accelerate this special case
- SkFixed first = (uL << 16) + SK_Fixed1 - ul;
+ SkFixed first = SkIntToFixed(uL) + SK_Fixed1 - ul;
SkFixed second = ll - ul - first;
SkAlpha a1 = fullAlpha - partialTriangleToAlpha(first, lDY);
SkAlpha a2 = partialTriangleToAlpha(second, lDY);
alphas[0] = alphas[0] > a1 ? alphas[0] - a1 : 0;
alphas[1] = alphas[1] > a2 ? alphas[1] - a2 : 0;
} else {
- computeAlphaBelowLine(tempAlphas + uL - L, ul - (uL << 16), ll - (uL << 16),
+ computeAlphaBelowLine(tempAlphas + uL - L, ul - SkIntToFixed(uL), ll - SkIntToFixed(uL),
lDY, fullAlpha);
for (int i = uL; i < lL; ++i) {
if (alphas[i - L] > tempAlphas[i - L]) {
@@ -757,14 +757,14 @@ static void blit_aaa_trapezoid_row(AdditiveBlitter* blitter, int y,
int uR = SkFixedFloorToInt(ur);
int lR = SkFixedCeilToInt(lr);
if (uR + 2 == lR) { // We only need to compute two triangles, accelerate this special case
- SkFixed first = (uR << 16) + SK_Fixed1 - ur;
+ SkFixed first = SkIntToFixed(uR) + SK_Fixed1 - ur;
SkFixed second = lr - ur - first;
SkAlpha a1 = partialTriangleToAlpha(first, rDY);
SkAlpha a2 = fullAlpha - partialTriangleToAlpha(second, rDY);
alphas[len-2] = alphas[len-2] > a1 ? alphas[len-2] - a1 : 0;
alphas[len-1] = alphas[len-1] > a2 ? alphas[len-1] - a2 : 0;
} else {
- computeAlphaAboveLine(tempAlphas + uR - L, ur - (uR << 16), lr - (uR << 16),
+ computeAlphaAboveLine(tempAlphas + uR - L, ur - SkIntToFixed(uR), lr - SkIntToFixed(uR),
rDY, fullAlpha);
for (int i = uR; i < lR; ++i) {
if (alphas[i - L] > tempAlphas[i - L]) {
@@ -1605,7 +1605,9 @@ static void aaa_walk_edges(SkAnalyticEdge* prevHead, SkAnalyticEdge* nextTail,
leftEnds, false, blitter, maskRow, isUsingMask, noRealBlitter,
leftClip, rightClip, yShift);
} else {
- blit_trapezoid_row(blitter, y >> 16, left, rightClip, leftE->fX, rightClip,
+ blit_trapezoid_row(blitter, y >> 16,
+ SkTMax(leftClip, left), rightClip,
+ SkTMax(leftClip, leftE->fX), rightClip,
leftDY, 0, fullAlpha, maskRow, isUsingMask,
noRealBlitter ||
(fullAlpha == 0xFF && edges_too_close(leftE->fPrev, leftE, nextY)),