Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(281)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: src/gpu/batches/GrAAStrokeRectBatch.cpp

Issue 2119813004: Hide geometry class in AAStrokeRectBatch and remove unused Append function (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: init view matrix for fill between two rects case Created 4 years, 5 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « no previous file | no next file » | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/gpu/batches/GrAAStrokeRectBatch.cpp
diff --git a/src/gpu/batches/GrAAStrokeRectBatch.cpp b/src/gpu/batches/GrAAStrokeRectBatch.cpp
index 3e0893236f8314806f678dd3c0122bdf2b3e0d35..da77dca6b33fe0d6f3c989356ed267ff0f71d95e 100644
--- a/src/gpu/batches/GrAAStrokeRectBatch.cpp
+++ b/src/gpu/batches/GrAAStrokeRectBatch.cpp
@@ -21,6 +21,79 @@ static void set_inset_fan(SkPoint* pts, size_t stride,
r.fRight - dx, r.fBottom - dy, stride);
}
+// We support all hairlines, bevels, and miters, but not round joins. Also, check whether the miter
+// limit makes a miter join effectively beveled.
+inline static bool allowed_stroke(const SkStrokeRec& stroke, bool* isMiter) {
+ SkASSERT(stroke.getStyle() == SkStrokeRec::kStroke_Style ||
+ stroke.getStyle() == SkStrokeRec::kHairline_Style);
+ // For hairlines, make bevel and round joins appear the same as mitered ones.
+ if (!stroke.getWidth()) {
+ *isMiter = true;
+ return true;
+ }
+ if (stroke.getJoin() == SkPaint::kBevel_Join) {
+ *isMiter = false;
+ return true;
+ }
+ if (stroke.getJoin() == SkPaint::kMiter_Join) {
+ *isMiter = stroke.getMiter() >= SK_ScalarSqrt2;
+ return true;
+ }
+ return false;
+}
+
+static void compute_rects(SkRect* devOutside, SkRect* devOutsideAssist, SkRect* devInside,
+ bool* isDegenerate, const SkMatrix& viewMatrix, const SkRect& rect,
+ SkScalar strokeWidth, bool miterStroke) {
+ SkRect devRect;
+ viewMatrix.mapRect(&devRect, rect);
+
+ SkVector devStrokeSize;
+ if (strokeWidth > 0) {
+ devStrokeSize.set(strokeWidth, strokeWidth);
+ viewMatrix.mapVectors(&devStrokeSize, 1);
+ devStrokeSize.setAbs(devStrokeSize);
+ } else {
+ devStrokeSize.set(SK_Scalar1, SK_Scalar1);
+ }
+
+ const SkScalar dx = devStrokeSize.fX;
+ const SkScalar dy = devStrokeSize.fY;
+ const SkScalar rx = SkScalarMul(dx, SK_ScalarHalf);
+ const SkScalar ry = SkScalarMul(dy, SK_ScalarHalf);
+
+ *devOutside = devRect;
+ *devOutsideAssist = devRect;
+ *devInside = devRect;
+
+ devOutside->outset(rx, ry);
+ devInside->inset(rx, ry);
+
+ // If we have a degenerate stroking rect(ie the stroke is larger than inner rect) then we
+ // make a degenerate inside rect to avoid double hitting. We will also jam all of the points
+ // together when we render these rects.
+ SkScalar spare;
+ {
+ SkScalar w = devRect.width() - dx;
+ SkScalar h = devRect.height() - dy;
+ spare = SkTMin(w, h);
+ }
+
+ *isDegenerate = spare <= 0;
+ if (*isDegenerate) {
+ devInside->fLeft = devInside->fRight = devRect.centerX();
+ devInside->fTop = devInside->fBottom = devRect.centerY();
+ }
+
+ // For bevel-stroke, use 2 SkRect instances(devOutside and devOutsideAssist)
+ // to draw the outside of the octagon. Because there are 8 vertices on the outer
+ // edge, while vertex number of inner edge is 4, the same as miter-stroke.
+ if (!miterStroke) {
+ devOutside->inset(0, ry);
+ devOutsideAssist->outset(0, ry);
+ }
+}
+
static sk_sp<GrGeometryProcessor> create_stroke_rect_gp(bool tweakAlphaForCoverage,
const SkMatrix& viewMatrix,
bool usesLocalCoords,
@@ -47,17 +120,36 @@ class AAStrokeRectBatch : public GrVertexBatch {
public:
DEFINE_BATCH_CLASS_ID
- // TODO support AA rotated stroke rects by copying around view matrices
- struct Geometry {
- SkRect fDevOutside;
- SkRect fDevOutsideAssist;
- SkRect fDevInside;
- GrColor fColor;
- bool fDegenerate;
- };
+ AAStrokeRectBatch(GrColor color, const SkMatrix& viewMatrix,
+ const SkRect& devOutside, const SkRect& devInside)
+ : INHERITED(ClassID())
+ , fViewMatrix(viewMatrix) {
+ SkASSERT(!devOutside.isEmpty())
+ SkASSERT(!devInside.isEmpty())
- static AAStrokeRectBatch* Create(const SkMatrix& viewMatrix, bool miterStroke) {
- return new AAStrokeRectBatch(viewMatrix, miterStroke);
+ fGeoData.emplace_back(Geometry{color, devOutside, devOutside, devInside, false});
+ fBounds = devOutside;
+ fMiterStroke = true;
+ }
+
+
+ static GrDrawBatch* Create(GrColor color, const SkMatrix& viewMatrix, const SkRect& rect,
+ const SkStrokeRec& stroke) {
+ bool isMiter;
+ if (!allowed_stroke(stroke, &isMiter)) {
+ return nullptr;
+ }
+
+ AAStrokeRectBatch* batch = new AAStrokeRectBatch();
+ batch->fMiterStroke = isMiter;
+ Geometry& geo = batch->fGeoData.push_back();
+ compute_rects(&geo.fDevOutside, &geo.fDevOutsideAssist, &geo.fDevInside, &geo.fDegenerate,
+ viewMatrix, rect, stroke.getWidth(), isMiter);
+ geo.fColor = color;
+ batch->fBounds = geo.fDevOutside;
+ batch->fBounds.join(geo.fDevOutsideAssist);
+ batch->fViewMatrix = viewMatrix;
+ return batch;
}
const char* name() const override { return "AAStrokeRect"; }
@@ -70,51 +162,12 @@ public:
coverage->setUnknownSingleComponent();
}
- SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
-
- bool canAppend(const SkMatrix& viewMatrix, bool miterStroke) {
- return fViewMatrix.cheapEqualTo(viewMatrix) && fMiterStroke == miterStroke;
- }
-
- void append(GrColor color, const SkRect& devOutside, const SkRect& devOutsideAssist,
- const SkRect& devInside, bool degenerate) {
- Geometry& geometry = fGeoData.push_back();
- geometry.fColor = color;
- geometry.fDevOutside = devOutside;
- geometry.fDevOutsideAssist = devOutsideAssist;
- geometry.fDevInside = devInside;
- geometry.fDegenerate = degenerate;
- }
-
- void appendAndUpdateBounds(GrColor color, const SkRect& devOutside,
- const SkRect& devOutsideAssist, const SkRect& devInside,
- bool degenerate) {
- this->append(color, devOutside, devOutsideAssist, devInside, degenerate);
-
- SkRect bounds;
- this->updateBounds(&bounds, fGeoData.back());
- this->joinBounds(bounds);
- }
-
- void init() { this->updateBounds(&fBounds, fGeoData[0]); }
-
private:
- void updateBounds(SkRect* bounds, const Geometry& geo) {
- // If we have miterstroke then we inset devOutside and outset devOutsideAssist, so we need
- // the join for proper bounds
- *bounds = geo.fDevOutside;
- bounds->join(geo.fDevOutsideAssist);
- }
+ AAStrokeRectBatch() : INHERITED(ClassID()) {}
void onPrepareDraws(Target*) const override;
void initBatchTracker(const GrXPOverridesForBatch&) override;
- AAStrokeRectBatch(const SkMatrix& viewMatrix,bool miterStroke)
- : INHERITED(ClassID()) {
- fViewMatrix = viewMatrix;
- fMiterStroke = miterStroke;
- }
-
static const int kMiterIndexCnt = 3 * 24;
static const int kMiterVertexCnt = 16;
static const int kNumMiterRectsInIndexBuffer = 256;
@@ -130,7 +183,6 @@ private:
bool canTweakAlphaForCoverage() const { return fBatch.fCanTweakAlphaForCoverage; }
bool colorIgnored() const { return fBatch.fColorIgnored; }
bool coverageIgnored() const { return fBatch.fCoverageIgnored; }
- const Geometry& geometry() const { return fGeoData[0]; }
const SkMatrix& viewMatrix() const { return fViewMatrix; }
bool miterStroke() const { return fMiterStroke; }
@@ -157,6 +209,15 @@ private:
bool fCanTweakAlphaForCoverage;
};
+ // TODO support AA rotated stroke rects by copying around view matrices
+ struct Geometry {
+ GrColor fColor;
+ SkRect fDevOutside;
+ SkRect fDevOutsideAssist;
+ SkRect fDevInside;
+ bool fDegenerate;
+ };
+
BatchTracker fBatch;
SkSTArray<1, Geometry, true> fGeoData;
SkMatrix fViewMatrix;
@@ -352,7 +413,7 @@ bool AAStrokeRectBatch::onCombineIfPossible(GrBatch* t, const GrCaps& caps) {
if (this->color() != that->color()) {
fBatch.fColor = GrColor_ILLEGAL;
}
- fGeoData.push_back_n(that->geoData()->count(), that->geoData()->begin());
+ fGeoData.push_back_n(that->fGeoData.count(), that->fGeoData.begin());
this->joinBounds(that->bounds());
return true;
}
@@ -516,114 +577,23 @@ void AAStrokeRectBatch::generateAAStrokeRectGeometry(void* vertices,
}
}
-// We support all hairlines, bevels, and miters, but not round joins. Also, check whether the miter
-// limit makes a miter join effectively beveled.
-inline static bool allowed_stroke(const SkStrokeRec& stroke, bool* isMiter) {
- SkASSERT(stroke.getStyle() == SkStrokeRec::kStroke_Style ||
- stroke.getStyle() == SkStrokeRec::kHairline_Style);
- // For hairlines, make bevel and round joins appear the same as mitered ones.
- if (!stroke.getWidth()) {
- *isMiter = true;
- return true;
- }
- if (stroke.getJoin() == SkPaint::kBevel_Join) {
- *isMiter = false;
- return true;
- }
- if (stroke.getJoin() == SkPaint::kMiter_Join) {
- *isMiter = stroke.getMiter() >= SK_ScalarSqrt2;
- return true;
- }
- return false;
-}
-
-static void compute_rects(SkRect* devOutside, SkRect* devOutsideAssist, SkRect* devInside,
- bool* isDegenerate, const SkMatrix& viewMatrix, const SkRect& rect,
- SkScalar strokeWidth, bool miterStroke) {
- SkRect devRect;
- viewMatrix.mapRect(&devRect, rect);
-
- SkVector devStrokeSize;
- if (strokeWidth > 0) {
- devStrokeSize.set(strokeWidth, strokeWidth);
- viewMatrix.mapVectors(&devStrokeSize, 1);
- devStrokeSize.setAbs(devStrokeSize);
- } else {
- devStrokeSize.set(SK_Scalar1, SK_Scalar1);
- }
-
- const SkScalar dx = devStrokeSize.fX;
- const SkScalar dy = devStrokeSize.fY;
- const SkScalar rx = SkScalarMul(dx, SK_ScalarHalf);
- const SkScalar ry = SkScalarMul(dy, SK_ScalarHalf);
-
- *devOutside = devRect;
- *devOutsideAssist = devRect;
- *devInside = devRect;
-
- devOutside->outset(rx, ry);
- devInside->inset(rx, ry);
-
- // If we have a degenerate stroking rect(ie the stroke is larger than inner rect) then we
- // make a degenerate inside rect to avoid double hitting. We will also jam all of the points
- // together when we render these rects.
- SkScalar spare;
- {
- SkScalar w = devRect.width() - dx;
- SkScalar h = devRect.height() - dy;
- spare = SkTMin(w, h);
- }
-
- *isDegenerate = spare <= 0;
- if (*isDegenerate) {
- devInside->fLeft = devInside->fRight = devRect.centerX();
- devInside->fTop = devInside->fBottom = devRect.centerY();
- }
-
- // For bevel-stroke, use 2 SkRect instances(devOutside and devOutsideAssist)
- // to draw the outside of the octagon. Because there are 8 vertices on the outer
- // edge, while vertex number of inner edge is 4, the same as miter-stroke.
- if (!miterStroke) {
- devOutside->inset(0, ry);
- devOutsideAssist->outset(0, ry);
- }
-}
-
namespace GrAAStrokeRectBatch {
GrDrawBatch* CreateFillBetweenRects(GrColor color,
const SkMatrix& viewMatrix,
const SkRect& devOutside,
const SkRect& devInside) {
- SkASSERT(!devOutside.isEmpty())
- SkASSERT(!devInside.isEmpty())
- AAStrokeRectBatch* batch = AAStrokeRectBatch::Create(viewMatrix, true);
- batch->append(color, devOutside, devOutside, devInside, false);
- batch->init();
- return batch;
+ return new AAStrokeRectBatch(color, viewMatrix, devOutside, devInside);
}
GrDrawBatch* Create(GrColor color,
const SkMatrix& viewMatrix,
const SkRect& rect,
const SkStrokeRec& stroke) {
- bool isMiterStroke;
- if (!allowed_stroke(stroke, &isMiterStroke)) {
- return nullptr;
- }
- AAStrokeRectBatch* batch = AAStrokeRectBatch::Create(viewMatrix, isMiterStroke);
-
- SkRect devOutside, devOutsideAssist, devInside;
- bool isDegenerate;
- compute_rects(&devOutside, &devOutsideAssist, &devInside, &isDegenerate, viewMatrix,
- rect, stroke.getWidth(), isMiterStroke);
-
- batch->append(color, devOutside, devOutsideAssist, devInside, isDegenerate);
- batch->init();
- return batch;
+ return AAStrokeRectBatch::Create(color, viewMatrix, rect, stroke);
}
-};
+}
///////////////////////////////////////////////////////////////////////////////////////////////////
« no previous file with comments | « no previous file | no next file » | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698