f833478191
Instead use std::unique_ptr to manage GrOp lifetime. Change-Id: Ic1dc1e0ffd7254c3994221f498677af5bbf66a71 Reviewed-on: https://skia-review.googlesource.com/6479 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
572 lines
20 KiB
C++
572 lines
20 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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// This test only works with the GPU backend.
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#include "gm.h"
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#if SK_SUPPORT_GPU
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#include "GrRenderTargetContextPriv.h"
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#include "GrContext.h"
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#include "GrPathUtils.h"
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#include "GrTest.h"
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#include "SkColorPriv.h"
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#include "SkGeometry.h"
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#include "ops/GrTestMeshDrawOp.h"
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#include "effects/GrBezierEffect.h"
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static inline SkScalar eval_line(const SkPoint& p, const SkScalar lineEq[3], SkScalar sign) {
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return sign * (lineEq[0] * p.fX + lineEq[1] * p.fY + lineEq[2]);
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}
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namespace skiagm {
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class BezierCubicOrConicTestOp : public GrTestMeshDrawOp {
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public:
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DEFINE_OP_CLASS_ID
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const char* name() const override { return "BezierCubicOrConicTestOp"; }
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static std::unique_ptr<GrDrawOp> Make(sk_sp<GrGeometryProcessor> gp, const SkRect& bounds,
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GrColor color, const SkScalar klmEqs[9], SkScalar sign) {
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return std::unique_ptr<GrDrawOp>(
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new BezierCubicOrConicTestOp(gp, bounds, color, klmEqs, sign));
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}
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private:
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BezierCubicOrConicTestOp(sk_sp<GrGeometryProcessor> gp, const SkRect& bounds, GrColor color,
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const SkScalar klmEqs[9], SkScalar sign)
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: INHERITED(ClassID(), bounds, color), fGeometryProcessor(std::move(gp)) {
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for (int i = 0; i < 9; i++) {
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fKlmEqs[i] = klmEqs[i];
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}
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fSign = sign;
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}
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struct Vertex {
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SkPoint fPosition;
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float fKLM[4]; // The last value is ignored. The effect expects a vec4f.
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};
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void onPrepareDraws(Target* target) const override {
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QuadHelper helper;
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size_t vertexStride = fGeometryProcessor->getVertexStride();
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SkASSERT(vertexStride == sizeof(Vertex));
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Vertex* verts = reinterpret_cast<Vertex*>(helper.init(target, vertexStride, 1));
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if (!verts) {
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return;
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}
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const SkRect& bounds = this->bounds();
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verts[0].fPosition.setRectFan(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom,
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sizeof(Vertex));
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for (int v = 0; v < 4; ++v) {
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verts[v].fKLM[0] = eval_line(verts[v].fPosition, fKlmEqs + 0, fSign);
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verts[v].fKLM[1] = eval_line(verts[v].fPosition, fKlmEqs + 3, fSign);
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verts[v].fKLM[2] = eval_line(verts[v].fPosition, fKlmEqs + 6, 1.f);
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}
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helper.recordDraw(target, fGeometryProcessor.get());
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}
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SkScalar fKlmEqs[9];
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SkScalar fSign;
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sk_sp<GrGeometryProcessor> fGeometryProcessor;
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static constexpr int kVertsPerCubic = 4;
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static constexpr int kIndicesPerCubic = 6;
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typedef GrTestMeshDrawOp INHERITED;
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};
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/**
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* This GM directly exercises effects that draw Bezier curves in the GPU backend.
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*/
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class BezierCubicEffects : public GM {
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public:
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BezierCubicEffects() {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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return SkString("bezier_cubic_effects");
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}
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SkISize onISize() override {
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return SkISize::Make(800, 800);
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}
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void onDraw(SkCanvas* canvas) override {
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GrRenderTargetContext* renderTargetContext =
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canvas->internal_private_accessTopLayerRenderTargetContext();
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if (!renderTargetContext) {
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skiagm::GM::DrawGpuOnlyMessage(canvas);
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return;
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}
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GrContext* context = canvas->getGrContext();
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if (!context) {
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return;
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}
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struct Vertex {
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SkPoint fPosition;
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float fKLM[4]; // The last value is ignored. The effect expects a vec4f.
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};
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constexpr int kNumCubics = 15;
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SkRandom rand;
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// Mult by 3 for each edge effect type
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int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumCubics*3)));
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int numRows = SkScalarCeilToInt(SkIntToScalar(kNumCubics*3) / numCols);
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SkScalar w = SkIntToScalar(renderTargetContext->width()) / numCols;
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SkScalar h = SkIntToScalar(renderTargetContext->height()) / numRows;
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int row = 0;
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int col = 0;
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constexpr GrColor color = 0xff000000;
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for (int i = 0; i < kNumCubics; ++i) {
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SkPoint baseControlPts[] = {
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}
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};
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for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) {
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sk_sp<GrGeometryProcessor> gp;
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GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType;
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gp = GrCubicEffect::Make(color, SkMatrix::I(), et, *context->caps());
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if (!gp) {
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continue;
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}
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SkScalar x = SkScalarMul(col, w);
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SkScalar y = SkScalarMul(row, h);
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SkPoint controlPts[] = {
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{x + baseControlPts[0].fX, y + baseControlPts[0].fY},
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{x + baseControlPts[1].fX, y + baseControlPts[1].fY},
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{x + baseControlPts[2].fX, y + baseControlPts[2].fY},
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{x + baseControlPts[3].fX, y + baseControlPts[3].fY}
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};
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SkPoint chopped[10];
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SkScalar klmEqs[9];
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SkScalar klmSigns[3];
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int cnt = GrPathUtils::chopCubicAtLoopIntersection(controlPts,
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chopped,
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klmEqs,
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klmSigns);
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SkPaint ctrlPtPaint;
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ctrlPtPaint.setColor(rand.nextU() | 0xFF000000);
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for (int i = 0; i < 4; ++i) {
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canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint);
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}
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SkPaint polyPaint;
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polyPaint.setColor(0xffA0A0A0);
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polyPaint.setStrokeWidth(0);
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polyPaint.setStyle(SkPaint::kStroke_Style);
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canvas->drawPoints(SkCanvas::kPolygon_PointMode, 4, controlPts, polyPaint);
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SkPaint choppedPtPaint;
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choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000);
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for (int c = 0; c < cnt; ++c) {
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SkPoint* pts = chopped + 3 * c;
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for (int i = 0; i < 4; ++i) {
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canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint);
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}
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SkRect bounds;
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bounds.set(pts, 4);
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SkPaint boundsPaint;
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boundsPaint.setColor(0xff808080);
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boundsPaint.setStrokeWidth(0);
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boundsPaint.setStyle(SkPaint::kStroke_Style);
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canvas->drawRect(bounds, boundsPaint);
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GrPaint grPaint;
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grPaint.setXPFactory(GrPorterDuffXPFactory::Make(SkBlendMode::kSrc));
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std::unique_ptr<GrDrawOp> op =
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BezierCubicOrConicTestOp::Make(gp, bounds, color, klmEqs, klmSigns[c]);
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renderTargetContext->priv().testingOnly_addDrawOp(grPaint, GrAAType::kNone,
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std::move(op));
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}
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++col;
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if (numCols == col) {
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col = 0;
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++row;
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}
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}
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}
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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/**
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* This GM directly exercises effects that draw Bezier curves in the GPU backend.
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*/
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class BezierConicEffects : public GM {
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public:
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BezierConicEffects() {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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return SkString("bezier_conic_effects");
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}
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SkISize onISize() override {
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return SkISize::Make(800, 800);
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}
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void onDraw(SkCanvas* canvas) override {
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GrRenderTargetContext* renderTargetContext =
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canvas->internal_private_accessTopLayerRenderTargetContext();
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if (!renderTargetContext) {
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skiagm::GM::DrawGpuOnlyMessage(canvas);
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return;
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}
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GrContext* context = canvas->getGrContext();
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if (!context) {
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return;
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}
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struct Vertex {
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SkPoint fPosition;
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float fKLM[4]; // The last value is ignored. The effect expects a vec4f.
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};
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constexpr int kNumConics = 10;
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SkRandom rand;
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// Mult by 3 for each edge effect type
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int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumConics*3)));
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int numRows = SkScalarCeilToInt(SkIntToScalar(kNumConics*3) / numCols);
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SkScalar w = SkIntToScalar(renderTargetContext->width()) / numCols;
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SkScalar h = SkIntToScalar(renderTargetContext->height()) / numRows;
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int row = 0;
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int col = 0;
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constexpr GrColor color = 0xff000000;
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for (int i = 0; i < kNumConics; ++i) {
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SkPoint baseControlPts[] = {
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
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{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}
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};
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SkScalar weight = rand.nextRangeF(0.f, 2.f);
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for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) {
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sk_sp<GrGeometryProcessor> gp;
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GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType;
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gp = GrConicEffect::Make(color, SkMatrix::I(), et,
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*context->caps(), SkMatrix::I(), false);
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if (!gp) {
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continue;
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}
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SkScalar x = SkScalarMul(col, w);
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SkScalar y = SkScalarMul(row, h);
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SkPoint controlPts[] = {
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{x + baseControlPts[0].fX, y + baseControlPts[0].fY},
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{x + baseControlPts[1].fX, y + baseControlPts[1].fY},
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{x + baseControlPts[2].fX, y + baseControlPts[2].fY}
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};
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SkConic dst[4];
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SkScalar klmEqs[9];
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int cnt = chop_conic(controlPts, dst, weight);
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GrPathUtils::getConicKLM(controlPts, weight, klmEqs);
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SkPaint ctrlPtPaint;
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ctrlPtPaint.setColor(rand.nextU() | 0xFF000000);
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for (int i = 0; i < 3; ++i) {
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canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint);
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}
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SkPaint polyPaint;
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polyPaint.setColor(0xffA0A0A0);
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polyPaint.setStrokeWidth(0);
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polyPaint.setStyle(SkPaint::kStroke_Style);
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canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, controlPts, polyPaint);
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SkPaint choppedPtPaint;
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choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000);
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for (int c = 0; c < cnt; ++c) {
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SkPoint* pts = dst[c].fPts;
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for (int i = 0; i < 3; ++i) {
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canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint);
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}
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SkRect bounds;
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//SkPoint bPts[] = {{0.f, 0.f}, {800.f, 800.f}};
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//bounds.set(bPts, 2);
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bounds.set(pts, 3);
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SkPaint boundsPaint;
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boundsPaint.setColor(0xff808080);
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boundsPaint.setStrokeWidth(0);
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boundsPaint.setStyle(SkPaint::kStroke_Style);
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canvas->drawRect(bounds, boundsPaint);
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GrPaint grPaint;
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grPaint.setXPFactory(GrPorterDuffXPFactory::Make(SkBlendMode::kSrc));
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std::unique_ptr<GrDrawOp> op =
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BezierCubicOrConicTestOp::Make(gp, bounds, color, klmEqs, 1.f);
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renderTargetContext->priv().testingOnly_addDrawOp(grPaint, GrAAType::kNone,
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std::move(op));
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}
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++col;
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if (numCols == col) {
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col = 0;
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++row;
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}
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}
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}
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}
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private:
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// Uses the max curvature function for quads to estimate
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// where to chop the conic. If the max curvature is not
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// found along the curve segment it will return 1 and
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// dst[0] is the original conic. If it returns 2 the dst[0]
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// and dst[1] are the two new conics.
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int split_conic(const SkPoint src[3], SkConic dst[2], const SkScalar weight) {
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SkScalar t = SkFindQuadMaxCurvature(src);
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if (t == 0) {
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if (dst) {
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dst[0].set(src, weight);
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}
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return 1;
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} else {
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if (dst) {
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SkConic conic;
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conic.set(src, weight);
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if (!conic.chopAt(t, dst)) {
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dst[0].set(src, weight);
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return 1;
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}
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}
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return 2;
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}
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}
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// Calls split_conic on the entire conic and then once more on each subsection.
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// Most cases will result in either 1 conic (chop point is not within t range)
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// or 3 points (split once and then one subsection is split again).
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int chop_conic(const SkPoint src[3], SkConic dst[4], const SkScalar weight) {
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SkConic dstTemp[2];
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int conicCnt = split_conic(src, dstTemp, weight);
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if (2 == conicCnt) {
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int conicCnt2 = split_conic(dstTemp[0].fPts, dst, dstTemp[0].fW);
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conicCnt = conicCnt2 + split_conic(dstTemp[1].fPts, &dst[conicCnt2], dstTemp[1].fW);
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} else {
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dst[0] = dstTemp[0];
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}
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return conicCnt;
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}
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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class BezierQuadTestOp : public GrTestMeshDrawOp {
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public:
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DEFINE_OP_CLASS_ID
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const char* name() const override { return "BezierQuadTestOp"; }
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static std::unique_ptr<GrDrawOp> Make(sk_sp<GrGeometryProcessor> gp, const SkRect& bounds,
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GrColor color, const GrPathUtils::QuadUVMatrix& devToUV) {
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return std::unique_ptr<GrDrawOp>(new BezierQuadTestOp(gp, bounds, color, devToUV));
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}
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private:
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BezierQuadTestOp(sk_sp<GrGeometryProcessor> gp, const SkRect& bounds, GrColor color,
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const GrPathUtils::QuadUVMatrix& devToUV)
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: INHERITED(ClassID(), bounds, color)
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, fDevToUV(devToUV)
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, fGeometryProcessor(std::move(gp)) {}
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struct Vertex {
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SkPoint fPosition;
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float fKLM[4]; // The last value is ignored. The effect expects a vec4f.
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};
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void onPrepareDraws(Target* target) const override {
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QuadHelper helper;
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size_t vertexStride = fGeometryProcessor->getVertexStride();
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SkASSERT(vertexStride == sizeof(Vertex));
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Vertex* verts = reinterpret_cast<Vertex*>(helper.init(target, vertexStride, 1));
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if (!verts) {
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return;
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}
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const SkRect& bounds = this->bounds();
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verts[0].fPosition.setRectFan(bounds.fLeft, bounds.fTop, bounds.fRight, bounds.fBottom,
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sizeof(Vertex));
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fDevToUV.apply<4, sizeof(Vertex), sizeof(SkPoint)>(verts);
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helper.recordDraw(target, fGeometryProcessor.get());
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}
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GrPathUtils::QuadUVMatrix fDevToUV;
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sk_sp<GrGeometryProcessor> fGeometryProcessor;
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static constexpr int kVertsPerCubic = 4;
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static constexpr int kIndicesPerCubic = 6;
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typedef GrTestMeshDrawOp INHERITED;
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};
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/**
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* This GM directly exercises effects that draw Bezier quad curves in the GPU backend.
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*/
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class BezierQuadEffects : public GM {
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public:
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BezierQuadEffects() {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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return SkString("bezier_quad_effects");
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}
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SkISize onISize() override {
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return SkISize::Make(800, 800);
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}
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void onDraw(SkCanvas* canvas) override {
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GrRenderTargetContext* renderTargetContext =
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canvas->internal_private_accessTopLayerRenderTargetContext();
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if (!renderTargetContext) {
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skiagm::GM::DrawGpuOnlyMessage(canvas);
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return;
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}
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GrContext* context = canvas->getGrContext();
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if (!context) {
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return;
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}
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struct Vertex {
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SkPoint fPosition;
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float fUV[4]; // The last two values are ignored. The effect expects a vec4f.
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};
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constexpr int kNumQuads = 5;
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SkRandom rand;
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int numCols = SkScalarCeilToInt(SkScalarSqrt(SkIntToScalar(kNumQuads*3)));
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int numRows = SkScalarCeilToInt(SkIntToScalar(kNumQuads*3) / numCols);
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SkScalar w = SkIntToScalar(renderTargetContext->width()) / numCols;
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SkScalar h = SkIntToScalar(renderTargetContext->height()) / numRows;
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int row = 0;
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int col = 0;
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constexpr GrColor color = 0xff000000;
|
|
|
|
for (int i = 0; i < kNumQuads; ++i) {
|
|
SkPoint baseControlPts[] = {
|
|
{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
|
|
{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)},
|
|
{rand.nextRangeF(0.f, w), rand.nextRangeF(0.f, h)}
|
|
};
|
|
for(int edgeType = 0; edgeType < kGrProcessorEdgeTypeCnt; ++edgeType) {
|
|
sk_sp<GrGeometryProcessor> gp;
|
|
GrPrimitiveEdgeType et = (GrPrimitiveEdgeType)edgeType;
|
|
gp = GrQuadEffect::Make(color, SkMatrix::I(), et,
|
|
*context->caps(), SkMatrix::I(), false);
|
|
if (!gp) {
|
|
continue;
|
|
}
|
|
|
|
SkScalar x = SkScalarMul(col, w);
|
|
SkScalar y = SkScalarMul(row, h);
|
|
SkPoint controlPts[] = {
|
|
{x + baseControlPts[0].fX, y + baseControlPts[0].fY},
|
|
{x + baseControlPts[1].fX, y + baseControlPts[1].fY},
|
|
{x + baseControlPts[2].fX, y + baseControlPts[2].fY}
|
|
};
|
|
SkPoint chopped[5];
|
|
int cnt = SkChopQuadAtMaxCurvature(controlPts, chopped);
|
|
|
|
SkPaint ctrlPtPaint;
|
|
ctrlPtPaint.setColor(rand.nextU() | 0xFF000000);
|
|
for (int i = 0; i < 3; ++i) {
|
|
canvas->drawCircle(controlPts[i].fX, controlPts[i].fY, 6.f, ctrlPtPaint);
|
|
}
|
|
|
|
SkPaint polyPaint;
|
|
polyPaint.setColor(0xffA0A0A0);
|
|
polyPaint.setStrokeWidth(0);
|
|
polyPaint.setStyle(SkPaint::kStroke_Style);
|
|
canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, controlPts, polyPaint);
|
|
|
|
SkPaint choppedPtPaint;
|
|
choppedPtPaint.setColor(~ctrlPtPaint.getColor() | 0xFF000000);
|
|
|
|
for (int c = 0; c < cnt; ++c) {
|
|
SkPoint* pts = chopped + 2 * c;
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
canvas->drawCircle(pts[i].fX, pts[i].fY, 3.f, choppedPtPaint);
|
|
}
|
|
|
|
SkRect bounds;
|
|
bounds.set(pts, 3);
|
|
|
|
SkPaint boundsPaint;
|
|
boundsPaint.setColor(0xff808080);
|
|
boundsPaint.setStrokeWidth(0);
|
|
boundsPaint.setStyle(SkPaint::kStroke_Style);
|
|
canvas->drawRect(bounds, boundsPaint);
|
|
|
|
GrPaint grPaint;
|
|
grPaint.setXPFactory(GrPorterDuffXPFactory::Make(SkBlendMode::kSrc));
|
|
|
|
GrPathUtils::QuadUVMatrix DevToUV(pts);
|
|
|
|
std::unique_ptr<GrDrawOp> op =
|
|
BezierQuadTestOp::Make(gp, bounds, color, DevToUV);
|
|
|
|
renderTargetContext->priv().testingOnly_addDrawOp(grPaint, GrAAType::kNone,
|
|
std::move(op));
|
|
}
|
|
++col;
|
|
if (numCols == col) {
|
|
col = 0;
|
|
++row;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
DEF_GM(return new BezierCubicEffects;)
|
|
DEF_GM(return new BezierConicEffects;)
|
|
DEF_GM(return new BezierQuadEffects;)
|
|
}
|
|
|
|
#endif
|