///////////////////////////////////////////////////////////////////////////////
-class CircleBatch : public GrVertexBatch {
-public:
- DEFINE_BATCH_CLASS_ID
+GrDrawBatch* GrOvalRenderer::CreateOvalBatch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& oval,
+ const SkStrokeRec& stroke,
+ GrShaderCaps* shaderCaps) {
+ // we can draw circles
+ if (SkScalarNearlyEqual(oval.width(), oval.height()) && circle_stays_circle(viewMatrix)) {
+ return CreateCircleBatch(color, viewMatrix, oval, stroke);
+ }
- CircleBatch(GrColor color, const SkMatrix& viewMatrix, const SkRect& circle,
- const SkStrokeRec& stroke)
- : INHERITED(ClassID())
- , fViewMatrixIfUsingLocalCoords(viewMatrix) {
- SkPoint center = SkPoint::Make(circle.centerX(), circle.centerY());
- viewMatrix.mapPoints(¢er, 1);
- SkScalar radius = viewMatrix.mapRadius(SkScalarHalf(circle.width()));
- SkScalar strokeWidth = viewMatrix.mapRadius(stroke.getWidth());
+ // if we have shader derivative support, render as device-independent
+ if (shaderCaps->shaderDerivativeSupport()) {
+ return CreateDIEllipseBatch(color, viewMatrix, oval, stroke);
+ }
- SkStrokeRec::Style style = stroke.getStyle();
- bool isStrokeOnly = SkStrokeRec::kStroke_Style == style ||
- SkStrokeRec::kHairline_Style == style;
- bool hasStroke = isStrokeOnly || SkStrokeRec::kStrokeAndFill_Style == style;
+ // otherwise axis-aligned ellipses only
+ if (viewMatrix.rectStaysRect()) {
+ return CreateEllipseBatch(color, viewMatrix, oval, stroke);
+ }
- SkScalar innerRadius = 0.0f;
- SkScalar outerRadius = radius;
- SkScalar halfWidth = 0;
- if (hasStroke) {
- if (SkScalarNearlyZero(strokeWidth)) {
- halfWidth = SK_ScalarHalf;
- } else {
- halfWidth = SkScalarHalf(strokeWidth);
- }
+ return nullptr;
+}
- outerRadius += halfWidth;
- if (isStrokeOnly) {
- innerRadius = radius - halfWidth;
- }
- }
+///////////////////////////////////////////////////////////////////////////////
- // The radii are outset for two reasons. First, it allows the shader to simply perform
- // simpler computation because the computed alpha is zero, rather than 50%, at the radius.
- // Second, the outer radius is used to compute the verts of the bounding box that is
- // rendered and the outset ensures the box will cover all partially covered by the circle.
- outerRadius += SK_ScalarHalf;
- innerRadius -= SK_ScalarHalf;
+class CircleBatch : public GrVertexBatch {
+public:
+ DEFINE_BATCH_CLASS_ID
- fGeoData.emplace_back(Geometry {
- color,
- innerRadius,
- outerRadius,
- SkRect::MakeLTRB(center.fX - outerRadius, center.fY - outerRadius,
- center.fX + outerRadius, center.fY + outerRadius)
- });
- this->setBounds(fGeoData.back().fDevBounds);
- fStroked = isStrokeOnly && innerRadius > 0;
- }
+ struct Geometry {
+ SkRect fDevBounds;
+ SkScalar fInnerRadius;
+ SkScalar fOuterRadius;
+ GrColor fColor;
+ };
+ CircleBatch(const Geometry& geometry, const SkMatrix& viewMatrix, bool stroked)
+ : INHERITED(ClassID())
+ , fStroked(stroked)
+ , fViewMatrixIfUsingLocalCoords(viewMatrix) {
+ fGeoData.push_back(geometry);
+ this->setBounds(geometry.fDevBounds);
+ }
const char* name() const override { return "CircleBatch"; }
SkString dumpInfo() const override {
return true;
}
- struct Geometry {
- GrColor fColor;
- SkScalar fInnerRadius;
- SkScalar fOuterRadius;
- SkRect fDevBounds;
- };
-
bool fStroked;
SkMatrix fViewMatrixIfUsingLocalCoords;
SkSTArray<1, Geometry, true> fGeoData;
typedef GrVertexBatch INHERITED;
};
+static GrDrawBatch* create_circle_batch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& circle,
+ const SkStrokeRec& stroke) {
+ SkPoint center = SkPoint::Make(circle.centerX(), circle.centerY());
+ viewMatrix.mapPoints(¢er, 1);
+ SkScalar radius = viewMatrix.mapRadius(SkScalarHalf(circle.width()));
+ SkScalar strokeWidth = viewMatrix.mapRadius(stroke.getWidth());
+
+ SkStrokeRec::Style style = stroke.getStyle();
+ bool isStrokeOnly = SkStrokeRec::kStroke_Style == style ||
+ SkStrokeRec::kHairline_Style == style;
+ bool hasStroke = isStrokeOnly || SkStrokeRec::kStrokeAndFill_Style == style;
+
+ SkScalar innerRadius = 0.0f;
+ SkScalar outerRadius = radius;
+ SkScalar halfWidth = 0;
+ if (hasStroke) {
+ if (SkScalarNearlyZero(strokeWidth)) {
+ halfWidth = SK_ScalarHalf;
+ } else {
+ halfWidth = SkScalarHalf(strokeWidth);
+ }
+
+ outerRadius += halfWidth;
+ if (isStrokeOnly) {
+ innerRadius = radius - halfWidth;
+ }
+ }
+
+ // The radii are outset for two reasons. First, it allows the shader to simply perform simpler
+ // computation because the computed alpha is zero, rather than 50%, at the radius.
+ // Second, the outer radius is used to compute the verts of the bounding box that is rendered
+ // and the outset ensures the box will cover all partially covered by the circle.
+ outerRadius += SK_ScalarHalf;
+ innerRadius -= SK_ScalarHalf;
+
+ CircleBatch::Geometry geometry;
+ geometry.fColor = color;
+ geometry.fInnerRadius = innerRadius;
+ geometry.fOuterRadius = outerRadius;
+ geometry.fDevBounds = SkRect::MakeLTRB(center.fX - outerRadius, center.fY - outerRadius,
+ center.fX + outerRadius, center.fY + outerRadius);
+
+ return new CircleBatch(geometry, viewMatrix, isStrokeOnly && innerRadius > 0);
+}
+
+GrDrawBatch* GrOvalRenderer::CreateCircleBatch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& circle,
+ const SkStrokeRec& stroke) {
+ return create_circle_batch(color, viewMatrix, circle, stroke);
+}
+
///////////////////////////////////////////////////////////////////////////////
class EllipseBatch : public GrVertexBatch {
public:
DEFINE_BATCH_CLASS_ID
- static GrDrawBatch* Create(GrColor color, const SkMatrix& viewMatrix, const SkRect& ellipse,
- const SkStrokeRec& stroke) {
- SkASSERT(viewMatrix.rectStaysRect());
-
- // do any matrix crunching before we reset the draw state for device coords
- SkPoint center = SkPoint::Make(ellipse.centerX(), ellipse.centerY());
- viewMatrix.mapPoints(¢er, 1);
- SkScalar ellipseXRadius = SkScalarHalf(ellipse.width());
- SkScalar ellipseYRadius = SkScalarHalf(ellipse.height());
- SkScalar xRadius = SkScalarAbs(viewMatrix[SkMatrix::kMScaleX]*ellipseXRadius +
- viewMatrix[SkMatrix::kMSkewY]*ellipseYRadius);
- SkScalar yRadius = SkScalarAbs(viewMatrix[SkMatrix::kMSkewX]*ellipseXRadius +
- viewMatrix[SkMatrix::kMScaleY]*ellipseYRadius);
-
- // do (potentially) anisotropic mapping of stroke
- SkVector scaledStroke;
- SkScalar strokeWidth = stroke.getWidth();
- scaledStroke.fX = SkScalarAbs(strokeWidth*(viewMatrix[SkMatrix::kMScaleX] +
- viewMatrix[SkMatrix::kMSkewY]));
- scaledStroke.fY = SkScalarAbs(strokeWidth*(viewMatrix[SkMatrix::kMSkewX] +
- viewMatrix[SkMatrix::kMScaleY]));
-
- SkStrokeRec::Style style = stroke.getStyle();
- bool isStrokeOnly = SkStrokeRec::kStroke_Style == style ||
- SkStrokeRec::kHairline_Style == style;
- bool hasStroke = isStrokeOnly || SkStrokeRec::kStrokeAndFill_Style == style;
-
- SkScalar innerXRadius = 0;
- SkScalar innerYRadius = 0;
- if (hasStroke) {
- if (SkScalarNearlyZero(scaledStroke.length())) {
- scaledStroke.set(SK_ScalarHalf, SK_ScalarHalf);
- } else {
- scaledStroke.scale(SK_ScalarHalf);
- }
-
- // we only handle thick strokes for near-circular ellipses
- if (scaledStroke.length() > SK_ScalarHalf &&
- (SK_ScalarHalf*xRadius > yRadius || SK_ScalarHalf*yRadius > xRadius)) {
- return nullptr;
- }
-
- // we don't handle it if curvature of the stroke is less than curvature of the ellipse
- if (scaledStroke.fX*(yRadius*yRadius) < (scaledStroke.fY*scaledStroke.fY)*xRadius ||
- scaledStroke.fY*(xRadius*xRadius) < (scaledStroke.fX*scaledStroke.fX)*yRadius) {
- return nullptr;
- }
-
- // this is legit only if scale & translation (which should be the case at the moment)
- if (isStrokeOnly) {
- innerXRadius = xRadius - scaledStroke.fX;
- innerYRadius = yRadius - scaledStroke.fY;
- }
- xRadius += scaledStroke.fX;
- yRadius += scaledStroke.fY;
- }
+ struct Geometry {
+ SkRect fDevBounds;
+ SkScalar fXRadius;
+ SkScalar fYRadius;
+ SkScalar fInnerXRadius;
+ SkScalar fInnerYRadius;
+ GrColor fColor;
+ };
- // We've extended the outer x radius out half a pixel to antialias.
- // This will also expand the rect so all the pixels will be captured.
- // TODO: Consider if we should use sqrt(2)/2 instead
- xRadius += SK_ScalarHalf;
- yRadius += SK_ScalarHalf;
-
- EllipseBatch* batch = new EllipseBatch();
- batch->fGeoData.emplace_back(Geometry {
- color,
- xRadius,
- yRadius,
- innerXRadius,
- innerYRadius,
- SkRect::MakeLTRB(center.fX - xRadius, center.fY - yRadius,
- center.fX + xRadius, center.fY + yRadius)
- });
- batch->fStroked = isStrokeOnly && innerXRadius > 0 && innerYRadius > 0;
- batch->fViewMatrixIfUsingLocalCoords = viewMatrix;
- batch->setBounds(batch->fGeoData.back().fDevBounds);
- return batch;
+ EllipseBatch(const Geometry& geometry, const SkMatrix& viewMatrix, bool stroked)
+ : INHERITED(ClassID())
+ , fStroked(stroked)
+ , fViewMatrixIfUsingLocalCoords(viewMatrix) {
+ fGeoData.push_back(geometry);
+ this->setBounds(geometry.fDevBounds);
}
const char* name() const override { return "EllipseBatch"; }
}
private:
- EllipseBatch() : INHERITED(ClassID()) {}
-
void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
// Handle any overrides that affect our GP.
if (!overrides.readsCoverage()) {
return true;
}
- struct Geometry {
- GrColor fColor;
- SkScalar fXRadius;
- SkScalar fYRadius;
- SkScalar fInnerXRadius;
- SkScalar fInnerYRadius;
- SkRect fDevBounds;
- };
bool fStroked;
SkMatrix fViewMatrixIfUsingLocalCoords;
typedef GrVertexBatch INHERITED;
};
-/////////////////////////////////////////////////////////////////////////////////////////////////
-
-class DIEllipseBatch : public GrVertexBatch {
-public:
- DEFINE_BATCH_CLASS_ID
+static GrDrawBatch* create_ellipse_batch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& ellipse,
+ const SkStrokeRec& stroke) {
+ SkASSERT(viewMatrix.rectStaysRect());
- static GrDrawBatch* Create(GrColor color,
- const SkMatrix& viewMatrix,
- const SkRect& ellipse,
- const SkStrokeRec& stroke) {
- SkPoint center = SkPoint::Make(ellipse.centerX(), ellipse.centerY());
- SkScalar xRadius = SkScalarHalf(ellipse.width());
- SkScalar yRadius = SkScalarHalf(ellipse.height());
-
- SkStrokeRec::Style style = stroke.getStyle();
- DIEllipseStyle dieStyle = (SkStrokeRec::kStroke_Style == style) ?
- DIEllipseStyle::kStroke :
- (SkStrokeRec::kHairline_Style == style) ?
- DIEllipseStyle::kHairline : DIEllipseStyle::kFill;
-
- SkScalar innerXRadius = 0;
- SkScalar innerYRadius = 0;
- if (SkStrokeRec::kFill_Style != style && SkStrokeRec::kHairline_Style != style) {
- SkScalar strokeWidth = stroke.getWidth();
-
- if (SkScalarNearlyZero(strokeWidth)) {
- strokeWidth = SK_ScalarHalf;
- } else {
- strokeWidth *= SK_ScalarHalf;
- }
+ // do any matrix crunching before we reset the draw state for device coords
+ SkPoint center = SkPoint::Make(ellipse.centerX(), ellipse.centerY());
+ viewMatrix.mapPoints(¢er, 1);
+ SkScalar ellipseXRadius = SkScalarHalf(ellipse.width());
+ SkScalar ellipseYRadius = SkScalarHalf(ellipse.height());
+ SkScalar xRadius = SkScalarAbs(viewMatrix[SkMatrix::kMScaleX]*ellipseXRadius +
+ viewMatrix[SkMatrix::kMSkewY]*ellipseYRadius);
+ SkScalar yRadius = SkScalarAbs(viewMatrix[SkMatrix::kMSkewX]*ellipseXRadius +
+ viewMatrix[SkMatrix::kMScaleY]*ellipseYRadius);
+
+ // do (potentially) anisotropic mapping of stroke
+ SkVector scaledStroke;
+ SkScalar strokeWidth = stroke.getWidth();
+ scaledStroke.fX = SkScalarAbs(strokeWidth*(viewMatrix[SkMatrix::kMScaleX] +
+ viewMatrix[SkMatrix::kMSkewY]));
+ scaledStroke.fY = SkScalarAbs(strokeWidth*(viewMatrix[SkMatrix::kMSkewX] +
+ viewMatrix[SkMatrix::kMScaleY]));
- // we only handle thick strokes for near-circular ellipses
- if (strokeWidth > SK_ScalarHalf &&
- (SK_ScalarHalf*xRadius > yRadius || SK_ScalarHalf*yRadius > xRadius)) {
- return nullptr;
- }
+ SkStrokeRec::Style style = stroke.getStyle();
+ bool isStrokeOnly = SkStrokeRec::kStroke_Style == style ||
+ SkStrokeRec::kHairline_Style == style;
+ bool hasStroke = isStrokeOnly || SkStrokeRec::kStrokeAndFill_Style == style;
- // we don't handle it if curvature of the stroke is less than curvature of the ellipse
- if (strokeWidth*(yRadius*yRadius) < (strokeWidth*strokeWidth)*xRadius ||
- strokeWidth*(xRadius*xRadius) < (strokeWidth*strokeWidth)*yRadius) {
- return nullptr;
- }
+ SkScalar innerXRadius = 0;
+ SkScalar innerYRadius = 0;
+ if (hasStroke) {
+ if (SkScalarNearlyZero(scaledStroke.length())) {
+ scaledStroke.set(SK_ScalarHalf, SK_ScalarHalf);
+ } else {
+ scaledStroke.scale(SK_ScalarHalf);
+ }
- // set inner radius (if needed)
- if (SkStrokeRec::kStroke_Style == style) {
- innerXRadius = xRadius - strokeWidth;
- innerYRadius = yRadius - strokeWidth;
- }
+ // we only handle thick strokes for near-circular ellipses
+ if (scaledStroke.length() > SK_ScalarHalf &&
+ (SK_ScalarHalf*xRadius > yRadius || SK_ScalarHalf*yRadius > xRadius)) {
+ return nullptr;
+ }
- xRadius += strokeWidth;
- yRadius += strokeWidth;
+ // we don't handle it if curvature of the stroke is less than curvature of the ellipse
+ if (scaledStroke.fX*(yRadius*yRadius) < (scaledStroke.fY*scaledStroke.fY)*xRadius ||
+ scaledStroke.fY*(xRadius*xRadius) < (scaledStroke.fX*scaledStroke.fX)*yRadius) {
+ return nullptr;
}
- if (DIEllipseStyle::kStroke == dieStyle) {
- dieStyle = (innerXRadius > 0 && innerYRadius > 0) ? DIEllipseStyle ::kStroke :
- DIEllipseStyle ::kFill;
+
+ // this is legit only if scale & translation (which should be the case at the moment)
+ if (isStrokeOnly) {
+ innerXRadius = xRadius - scaledStroke.fX;
+ innerYRadius = yRadius - scaledStroke.fY;
}
- // This expands the outer rect so that after CTM we end up with a half-pixel border
- SkScalar a = viewMatrix[SkMatrix::kMScaleX];
- SkScalar b = viewMatrix[SkMatrix::kMSkewX];
- SkScalar c = viewMatrix[SkMatrix::kMSkewY];
- SkScalar d = viewMatrix[SkMatrix::kMScaleY];
- SkScalar geoDx = SK_ScalarHalf / SkScalarSqrt(a*a + c*c);
- SkScalar geoDy = SK_ScalarHalf / SkScalarSqrt(b*b + d*d);
-
- DIEllipseBatch* batch = new DIEllipseBatch();
- batch->fGeoData.emplace_back(Geometry {
- viewMatrix,
- color,
- xRadius,
- yRadius,
- innerXRadius,
- innerYRadius,
- geoDx,
- geoDy,
- dieStyle,
- SkRect::MakeLTRB(center.fX - xRadius - geoDx, center.fY - yRadius - geoDy,
- center.fX + xRadius + geoDx, center.fY + yRadius + geoDy)
- });
- SkRect devBounds = batch->fGeoData.back().fBounds;
- viewMatrix.mapRect(&devBounds);
- batch->setBounds(devBounds);
- return batch;
+ xRadius += scaledStroke.fX;
+ yRadius += scaledStroke.fY;
+ }
+
+ // We've extended the outer x radius out half a pixel to antialias.
+ // This will also expand the rect so all the pixels will be captured.
+ // TODO: Consider if we should use sqrt(2)/2 instead
+ xRadius += SK_ScalarHalf;
+ yRadius += SK_ScalarHalf;
+
+ EllipseBatch::Geometry geometry;
+ geometry.fColor = color;
+ geometry.fXRadius = xRadius;
+ geometry.fYRadius = yRadius;
+ geometry.fInnerXRadius = innerXRadius;
+ geometry.fInnerYRadius = innerYRadius;
+ geometry.fDevBounds = SkRect::MakeLTRB(center.fX - xRadius, center.fY - yRadius,
+ center.fX + xRadius, center.fY + yRadius);
+
+ return new EllipseBatch(geometry, viewMatrix,
+ isStrokeOnly && innerXRadius > 0 && innerYRadius > 0);
+}
+
+GrDrawBatch* GrOvalRenderer::CreateEllipseBatch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& ellipse,
+ const SkStrokeRec& stroke) {
+ return create_ellipse_batch(color, viewMatrix, ellipse, stroke);
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+
+class DIEllipseBatch : public GrVertexBatch {
+public:
+ DEFINE_BATCH_CLASS_ID
+
+ struct Geometry {
+ SkMatrix fViewMatrix;
+ SkRect fBounds;
+ SkScalar fXRadius;
+ SkScalar fYRadius;
+ SkScalar fInnerXRadius;
+ SkScalar fInnerYRadius;
+ SkScalar fGeoDx;
+ SkScalar fGeoDy;
+ GrColor fColor;
+ DIEllipseStyle fStyle;
+ };
+
+ static GrDrawBatch* Create(const Geometry& geometry, const SkRect& bounds) {
+ return new DIEllipseBatch(geometry, bounds);
}
const char* name() const override { return "DIEllipseBatch"; }
private:
- DIEllipseBatch() : INHERITED(ClassID()) {}
-
void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
// Handle any overrides that affect our GP.
overrides.getOverrideColorIfSet(&fGeoData[0].fColor);
helper.recordDraw(target, gp);
}
+ DIEllipseBatch(const Geometry& geometry, const SkRect& bounds) : INHERITED(ClassID()) {
+ fGeoData.push_back(geometry);
+
+ this->setBounds(bounds);
+ }
+
bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override {
DIEllipseBatch* that = t->cast<DIEllipseBatch>();
if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(),
const SkMatrix& viewMatrix() const { return fGeoData[0].fViewMatrix; }
DIEllipseStyle style() const { return fGeoData[0].fStyle; }
- struct Geometry {
- SkMatrix fViewMatrix;
- GrColor fColor;
- SkScalar fXRadius;
- SkScalar fYRadius;
- SkScalar fInnerXRadius;
- SkScalar fInnerYRadius;
- SkScalar fGeoDx;
- SkScalar fGeoDy;
- DIEllipseStyle fStyle;
- SkRect fBounds;
- };
-
bool fUsesLocalCoords;
SkSTArray<1, Geometry, true> fGeoData;
typedef GrVertexBatch INHERITED;
};
+static GrDrawBatch* create_diellipse_batch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& ellipse,
+ const SkStrokeRec& stroke) {
+ SkPoint center = SkPoint::Make(ellipse.centerX(), ellipse.centerY());
+ SkScalar xRadius = SkScalarHalf(ellipse.width());
+ SkScalar yRadius = SkScalarHalf(ellipse.height());
+
+ SkStrokeRec::Style style = stroke.getStyle();
+ DIEllipseStyle dieStyle = (SkStrokeRec::kStroke_Style == style) ?
+ DIEllipseStyle::kStroke :
+ (SkStrokeRec::kHairline_Style == style) ?
+ DIEllipseStyle::kHairline : DIEllipseStyle::kFill;
+
+ SkScalar innerXRadius = 0;
+ SkScalar innerYRadius = 0;
+ if (SkStrokeRec::kFill_Style != style && SkStrokeRec::kHairline_Style != style) {
+ SkScalar strokeWidth = stroke.getWidth();
+
+ if (SkScalarNearlyZero(strokeWidth)) {
+ strokeWidth = SK_ScalarHalf;
+ } else {
+ strokeWidth *= SK_ScalarHalf;
+ }
+
+ // we only handle thick strokes for near-circular ellipses
+ if (strokeWidth > SK_ScalarHalf &&
+ (SK_ScalarHalf*xRadius > yRadius || SK_ScalarHalf*yRadius > xRadius)) {
+ return nullptr;
+ }
+
+ // we don't handle it if curvature of the stroke is less than curvature of the ellipse
+ if (strokeWidth*(yRadius*yRadius) < (strokeWidth*strokeWidth)*xRadius ||
+ strokeWidth*(xRadius*xRadius) < (strokeWidth*strokeWidth)*yRadius) {
+ return nullptr;
+ }
+
+ // set inner radius (if needed)
+ if (SkStrokeRec::kStroke_Style == style) {
+ innerXRadius = xRadius - strokeWidth;
+ innerYRadius = yRadius - strokeWidth;
+ }
+
+ xRadius += strokeWidth;
+ yRadius += strokeWidth;
+ }
+ if (DIEllipseStyle::kStroke == dieStyle) {
+ dieStyle = (innerXRadius > 0 && innerYRadius > 0) ? DIEllipseStyle ::kStroke :
+ DIEllipseStyle ::kFill;
+ }
+
+ // This expands the outer rect so that after CTM we end up with a half-pixel border
+ SkScalar a = viewMatrix[SkMatrix::kMScaleX];
+ SkScalar b = viewMatrix[SkMatrix::kMSkewX];
+ SkScalar c = viewMatrix[SkMatrix::kMSkewY];
+ SkScalar d = viewMatrix[SkMatrix::kMScaleY];
+ SkScalar geoDx = SK_ScalarHalf / SkScalarSqrt(a*a + c*c);
+ SkScalar geoDy = SK_ScalarHalf / SkScalarSqrt(b*b + d*d);
+
+ DIEllipseBatch::Geometry geometry;
+ geometry.fViewMatrix = viewMatrix;
+ geometry.fColor = color;
+ geometry.fXRadius = xRadius;
+ geometry.fYRadius = yRadius;
+ geometry.fInnerXRadius = innerXRadius;
+ geometry.fInnerYRadius = innerYRadius;
+ geometry.fGeoDx = geoDx;
+ geometry.fGeoDy = geoDy;
+ geometry.fStyle = dieStyle;
+ geometry.fBounds = SkRect::MakeLTRB(center.fX - xRadius - geoDx, center.fY - yRadius - geoDy,
+ center.fX + xRadius + geoDx, center.fY + yRadius + geoDy);
+
+ SkRect devBounds = geometry.fBounds;
+ viewMatrix.mapRect(&devBounds);
+ return DIEllipseBatch::Create(geometry, devBounds);
+}
+
+GrDrawBatch* GrOvalRenderer::CreateDIEllipseBatch(GrColor color,
+ const SkMatrix& viewMatrix,
+ const SkRect& ellipse,
+ const SkStrokeRec& stroke) {
+ return create_diellipse_batch(color, viewMatrix, ellipse, stroke);
+}
+
///////////////////////////////////////////////////////////////////////////////
static const uint16_t gRRectIndices[] = {
public:
DEFINE_BATCH_CLASS_ID
- // A devStrokeWidth <= 0 indicates a fill only. If devStrokeWidth > 0 then strokeOnly indicates
- // whether the rrect is only stroked or stroked and filled.
- RRectCircleRendererBatch(GrColor color, const SkMatrix& viewMatrix, const SkRect& devRect,
- float devRadius, float devStrokeWidth, bool strokeOnly)
- : INHERITED(ClassID())
- , fViewMatrixIfUsingLocalCoords(viewMatrix) {
- SkRect bounds = devRect;
- SkASSERT(!(devStrokeWidth <= 0 && strokeOnly));
- SkScalar innerRadius = 0.0f;
- SkScalar outerRadius = devRadius;
- SkScalar halfWidth = 0;
- fStroked = false;
- if (devStrokeWidth > 0) {
- if (SkScalarNearlyZero(devStrokeWidth)) {
- halfWidth = SK_ScalarHalf;
- } else {
- halfWidth = SkScalarHalf(devStrokeWidth);
- }
-
- if (strokeOnly) {
- innerRadius = devRadius - halfWidth;
- fStroked = innerRadius >= 0;
- }
- outerRadius += halfWidth;
- bounds.outset(halfWidth, halfWidth);
- }
-
- // The radii are outset for two reasons. First, it allows the shader to simply perform
- // simpler computation because the computed alpha is zero, rather than 50%, at the radius.
- // Second, the outer radius is used to compute the verts of the bounding box that is
- // rendered and the outset ensures the box will cover all partially covered by the rrect
- // corners.
- outerRadius += SK_ScalarHalf;
- innerRadius -= SK_ScalarHalf;
+ struct Geometry {
+ SkRect fDevBounds;
+ SkScalar fInnerRadius;
+ SkScalar fOuterRadius;
+ GrColor fColor;
+ };
- // Expand the rect so all the pixels will be captured.
- bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
+ RRectCircleRendererBatch(const Geometry& geometry, const SkMatrix& viewMatrix, bool stroked)
+ : INHERITED(ClassID())
+ , fStroked(stroked)
+ , fViewMatrixIfUsingLocalCoords(viewMatrix) {
+ fGeoData.push_back(geometry);
- fGeoData.emplace_back(Geometry { color, innerRadius, outerRadius, bounds });
- this->setBounds(bounds);
+ this->setBounds(geometry.fDevBounds);
}
const char* name() const override { return "RRectCircleBatch"; }
return true;
}
- struct Geometry {
- GrColor fColor;
- SkScalar fInnerRadius;
- SkScalar fOuterRadius;
- SkRect fDevBounds;
- };
-
bool fStroked;
SkMatrix fViewMatrixIfUsingLocalCoords;
SkSTArray<1, Geometry, true> fGeoData;
public:
DEFINE_BATCH_CLASS_ID
- // If devStrokeWidths values are <= 0 indicates then fill only. Otherwise, strokeOnly indicates
- // whether the rrect is only stroked or stroked and filled.
- static GrDrawBatch* Create(GrColor color, const SkMatrix& viewMatrix, const SkRect& devRect,
- float devXRadius, float devYRadius, SkVector devStrokeWidths,
- bool strokeOnly) {
- SkASSERT(devXRadius > 0.5);
- SkASSERT(devYRadius > 0.5);
- SkASSERT((devStrokeWidths.fX > 0) == (devStrokeWidths.fY > 0));
- SkASSERT(!(strokeOnly && devStrokeWidths.fX <= 0));
- SkScalar innerXRadius = 0.0f;
- SkScalar innerYRadius = 0.0f;
- SkRect bounds = devRect;
- bool stroked = false;
- if (devStrokeWidths.fX > 0) {
- if (SkScalarNearlyZero(devStrokeWidths.length())) {
- devStrokeWidths.set(SK_ScalarHalf, SK_ScalarHalf);
- } else {
- devStrokeWidths.scale(SK_ScalarHalf);
- }
-
- // we only handle thick strokes for near-circular ellipses
- if (devStrokeWidths.length() > SK_ScalarHalf &&
- (SK_ScalarHalf*devXRadius > devYRadius || SK_ScalarHalf*devYRadius > devXRadius)) {
- return nullptr;
- }
-
- // we don't handle it if curvature of the stroke is less than curvature of the ellipse
- if (devStrokeWidths.fX*(devYRadius*devYRadius) <
- (devStrokeWidths.fY*devStrokeWidths.fY)*devXRadius) {
- return nullptr;
- }
- if (devStrokeWidths.fY*(devXRadius*devXRadius) <
- (devStrokeWidths.fX*devStrokeWidths.fX)*devYRadius) {
- return nullptr;
- }
-
- // this is legit only if scale & translation (which should be the case at the moment)
- if (strokeOnly) {
- innerXRadius = devXRadius - devStrokeWidths.fX;
- innerYRadius = devYRadius - devStrokeWidths.fY;
- stroked = (innerXRadius >= 0 && innerYRadius >= 0);
- }
-
- devXRadius += devStrokeWidths.fX;
- devYRadius += devStrokeWidths.fY;
- bounds.outset(devStrokeWidths.fX, devStrokeWidths.fY);
- }
-
- // Expand the rect so all the pixels will be captured.
- bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
+ struct Geometry {
+ SkRect fDevBounds;
+ SkScalar fXRadius;
+ SkScalar fYRadius;
+ SkScalar fInnerXRadius;
+ SkScalar fInnerYRadius;
+ GrColor fColor;
+ };
- RRectEllipseRendererBatch* batch = new RRectEllipseRendererBatch();
- batch->fStroked = stroked;
- batch->fViewMatrixIfUsingLocalCoords = viewMatrix;
- batch->fGeoData.emplace_back(
- Geometry {color, devXRadius, devYRadius, innerXRadius, innerYRadius, bounds});
- batch->setBounds(bounds);
- return batch;
+ RRectEllipseRendererBatch(const Geometry& geometry, const SkMatrix& viewMatrix, bool stroked)
+ : INHERITED(ClassID())
+ , fStroked(stroked)
+ , fViewMatrixIfUsingLocalCoords(viewMatrix) {
+ fGeoData.push_back(geometry);
+ this->setBounds(geometry.fDevBounds);
}
const char* name() const override { return "RRectEllipseRendererBatch"; }
}
private:
- RRectEllipseRendererBatch() : INHERITED(ClassID()) {}
-
void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
// Handle overrides that affect our GP.
overrides.getOverrideColorIfSet(&fGeoData[0].fColor);
return true;
}
- struct Geometry {
- GrColor fColor;
- SkScalar fXRadius;
- SkScalar fYRadius;
- SkScalar fInnerXRadius;
- SkScalar fInnerYRadius;
- SkRect fDevBounds;
- };
-
bool fStroked;
SkMatrix fViewMatrixIfUsingLocalCoords;
SkSTArray<1, Geometry, true> fGeoData;
SkStrokeRec::Style style = stroke.getStyle();
- // Do (potentially) anisotropic mapping of stroke. Use -1s to indicate fill-only draws.
- SkVector scaledStroke = {-1, -1};
+ // do (potentially) anisotropic mapping of stroke
+ SkVector scaledStroke;
SkScalar strokeWidth = stroke.getWidth();
bool isStrokeOnly = SkStrokeRec::kStroke_Style == style ||
// if the corners are circles, use the circle renderer
if ((!hasStroke || scaledStroke.fX == scaledStroke.fY) && xRadius == yRadius) {
- return new RRectCircleRendererBatch(color, viewMatrix, bounds, xRadius, scaledStroke.fX,
- isStrokeOnly);
+ SkScalar innerRadius = 0.0f;
+ SkScalar outerRadius = xRadius;
+ SkScalar halfWidth = 0;
+ if (hasStroke) {
+ if (SkScalarNearlyZero(scaledStroke.fX)) {
+ halfWidth = SK_ScalarHalf;
+ } else {
+ halfWidth = SkScalarHalf(scaledStroke.fX);
+ }
+
+ if (isStrokeOnly) {
+ innerRadius = xRadius - halfWidth;
+ }
+ outerRadius += halfWidth;
+ bounds.outset(halfWidth, halfWidth);
+ }
+
+ isStrokeOnly = (isStrokeOnly && innerRadius >= 0);
+
+ // The radii are outset for two reasons. First, it allows the shader to simply perform
+ // simpler computation because the computed alpha is zero, rather than 50%, at the radius.
+ // Second, the outer radius is used to compute the verts of the bounding box that is
+ // rendered and the outset ensures the box will cover all partially covered by the rrect
+ // corners.
+ outerRadius += SK_ScalarHalf;
+ innerRadius -= SK_ScalarHalf;
+
+ // Expand the rect so all the pixels will be captured.
+ bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
+
+ RRectCircleRendererBatch::Geometry geometry;
+ geometry.fColor = color;
+ geometry.fInnerRadius = innerRadius;
+ geometry.fOuterRadius = outerRadius;
+ geometry.fDevBounds = bounds;
+
+ return new RRectCircleRendererBatch(geometry, viewMatrix, isStrokeOnly);
// otherwise we use the ellipse renderer
} else {
- return RRectEllipseRendererBatch::Create(color, viewMatrix, bounds, xRadius, yRadius,
- scaledStroke, isStrokeOnly);
+ SkScalar innerXRadius = 0.0f;
+ SkScalar innerYRadius = 0.0f;
+ if (hasStroke) {
+ if (SkScalarNearlyZero(scaledStroke.length())) {
+ scaledStroke.set(SK_ScalarHalf, SK_ScalarHalf);
+ } else {
+ scaledStroke.scale(SK_ScalarHalf);
+ }
+
+ // we only handle thick strokes for near-circular ellipses
+ if (scaledStroke.length() > SK_ScalarHalf &&
+ (SK_ScalarHalf*xRadius > yRadius || SK_ScalarHalf*yRadius > xRadius)) {
+ return nullptr;
+ }
+
+ // we don't handle it if curvature of the stroke is less than curvature of the ellipse
+ if (scaledStroke.fX*(yRadius*yRadius) < (scaledStroke.fY*scaledStroke.fY)*xRadius ||
+ scaledStroke.fY*(xRadius*xRadius) < (scaledStroke.fX*scaledStroke.fX)*yRadius) {
+ return nullptr;
+ }
+ // this is legit only if scale & translation (which should be the case at the moment)
+ if (isStrokeOnly) {
+ innerXRadius = xRadius - scaledStroke.fX;
+ innerYRadius = yRadius - scaledStroke.fY;
+ }
+
+ xRadius += scaledStroke.fX;
+ yRadius += scaledStroke.fY;
+ bounds.outset(scaledStroke.fX, scaledStroke.fY);
+ }
+
+ isStrokeOnly = (isStrokeOnly && innerXRadius >= 0 && innerYRadius >= 0);
+
+ // Expand the rect so all the pixels will be captured.
+ bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
+
+ RRectEllipseRendererBatch::Geometry geometry;
+ geometry.fColor = color;
+ geometry.fXRadius = xRadius;
+ geometry.fYRadius = yRadius;
+ geometry.fInnerXRadius = innerXRadius;
+ geometry.fInnerYRadius = innerYRadius;
+ geometry.fDevBounds = bounds;
+
+ return new RRectEllipseRendererBatch(geometry, viewMatrix, isStrokeOnly);
}
}
return create_rrect_batch(color, viewMatrix, rrect, stroke);
}
-///////////////////////////////////////////////////////////////////////////////
-
-GrDrawBatch* GrOvalRenderer::CreateOvalBatch(GrColor color,
- const SkMatrix& viewMatrix,
- const SkRect& oval,
- const SkStrokeRec& stroke,
- GrShaderCaps* shaderCaps) {
- // we can draw circles
- if (SkScalarNearlyEqual(oval.width(), oval.height()) && circle_stays_circle(viewMatrix)) {
- return new CircleBatch(color, viewMatrix, oval, stroke);
- }
-
- // if we have shader derivative support, render as device-independent
- if (shaderCaps->shaderDerivativeSupport()) {
- return DIEllipseBatch::Create(color, viewMatrix, oval, stroke);
- }
-
- // otherwise axis-aligned ellipses only
- if (viewMatrix.rectStaysRect()) {
- return EllipseBatch::Create(color, viewMatrix, oval, stroke);
- }
-
- return nullptr;
-}
-
-///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////
#ifdef GR_TEST_UTILS
SkMatrix viewMatrix = GrTest::TestMatrix(random);
GrColor color = GrRandomColor(random);
SkRect circle = GrTest::TestSquare(random);
- return new CircleBatch(color, viewMatrix, circle, GrTest::TestStrokeRec(random));
+ return create_circle_batch(color, viewMatrix, circle, GrTest::TestStrokeRec(random));
}
DRAW_BATCH_TEST_DEFINE(EllipseBatch) {
SkMatrix viewMatrix = GrTest::TestMatrixRectStaysRect(random);
GrColor color = GrRandomColor(random);
SkRect ellipse = GrTest::TestSquare(random);
- return EllipseBatch::Create(color, viewMatrix, ellipse, GrTest::TestStrokeRec(random));
+ return create_ellipse_batch(color, viewMatrix, ellipse, GrTest::TestStrokeRec(random));
}
DRAW_BATCH_TEST_DEFINE(DIEllipseBatch) {
SkMatrix viewMatrix = GrTest::TestMatrix(random);
GrColor color = GrRandomColor(random);
SkRect ellipse = GrTest::TestSquare(random);
- return DIEllipseBatch::Create(color, viewMatrix, ellipse, GrTest::TestStrokeRec(random));
+ return create_diellipse_batch(color, viewMatrix, ellipse, GrTest::TestStrokeRec(random));
}
DRAW_BATCH_TEST_DEFINE(RRectBatch) {
projects / platform / upstream / libSkiaSharp.git / commitdiff