1c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org/* 2c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org * Copyright 2013 Google Inc. 3c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org * 4c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org * Use of this source code is governed by a BSD-style license that can be 5c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org * found in the LICENSE file. 6c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org */ 7c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 8c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org#include "gm.h" 9c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org#include "SkCanvas.h" 10c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org#include "SkPath.h" 11c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org#include "SkRandom.h" 1209800bc983085e4b286cc45554f149ee8adf04ddbungeman@google.com#include "SkScalar.h" 13c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org#include "SkTArray.h" 14c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 15c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgnamespace skiagm { 16c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 17c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org// This GM tests a grab-bag of convex and concave polygons. They are triangles, 18c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org// trapezoid, diamond, polygons with lots of edges, several concave polygons... 19c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org// But rectangles are excluded. 20c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgclass PolygonsGM: public GM { 21c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgpublic: 22c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org PolygonsGM() {} 23c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 24c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgprotected: 25a90c6803865766d28e92091f56f718f5e41fe80fcommit-bot@chromium.org virtual uint32_t onGetFlags() const SK_OVERRIDE { 26a90c6803865766d28e92091f56f718f5e41fe80fcommit-bot@chromium.org return kSkipTiled_Flag; 27a90c6803865766d28e92091f56f718f5e41fe80fcommit-bot@chromium.org } 28a90c6803865766d28e92091f56f718f5e41fe80fcommit-bot@chromium.org 29c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org virtual SkString onShortName() SK_OVERRIDE { 30c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org return SkString("polygons"); 31c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 32c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 33c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org virtual SkISize onISize() SK_OVERRIDE { 347fa2a65c0cfc714364490cb715171461143024e0reed@google.com int width = kNumPolygons * kCellSize + 40; 357fa2a65c0cfc714364490cb715171461143024e0reed@google.com int height = (kNumJoins * kNumStrokeWidths + kNumExtraStyles) * kCellSize + 40; 36c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org return SkISize::Make(width, height); 37c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 38c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 39c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // Construct all polygons 40c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org virtual void onOnceBeforeDraw() SK_OVERRIDE { 41c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p0[] = {{0, 0}, {60, 0}, {90, 40}}; // triangle 42c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p1[] = {{0, 0}, {0, 40}, {60, 40}, {40, 0}}; // trapezoid 43c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p2[] = {{0, 0}, {40, 40}, {80, 40}, {40, 0}}; // diamond 44c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p3[] = {{10, 0}, {50, 0}, {60, 10}, {60, 30}, {50, 40}, 45c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org {10, 40}, {0, 30}, {0, 10}}; // octagon 46c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p4[32]; // circle-like polygons with 32-edges. 47c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p5[] = {{0, 0}, {20, 20}, {0, 40}, {60, 20}}; // concave polygon with 4 edges 48c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p6[] = {{0, 40}, {0, 30}, {15, 30}, {15, 20}, {30, 20}, 49c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org {30, 10}, {45, 10}, {45, 0}, {60, 0}, {60, 40}}; // stairs-like polygon 50c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint p7[] = {{0, 20}, {20, 20}, {30, 0}, {40, 20}, {60, 20}, 51c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org {45, 30}, {55, 50}, {30, 40}, {5, 50}, {15, 30}}; // five-point stars 52c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 53c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (size_t i = 0; i < SK_ARRAY_COUNT(p4); ++i) { 54c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkScalar angle = 2 * SK_ScalarPI * i / SK_ARRAY_COUNT(p4); 5509800bc983085e4b286cc45554f149ee8adf04ddbungeman@google.com p4[i].set(20 * SkScalarCos(angle) + 20, 20 * SkScalarSin(angle) + 20); 56c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 57c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 58c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org struct Polygons { 59c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPoint* fPoints; 60c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org size_t fPointNum; 61c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } pgs[] = { 62c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p0, SK_ARRAY_COUNT(p0) }, 63c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p1, SK_ARRAY_COUNT(p1) }, 64c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p2, SK_ARRAY_COUNT(p2) }, 65c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p3, SK_ARRAY_COUNT(p3) }, 66c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p4, SK_ARRAY_COUNT(p4) }, 67c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p5, SK_ARRAY_COUNT(p5) }, 68c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p6, SK_ARRAY_COUNT(p6) }, 69c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org { p7, SK_ARRAY_COUNT(p7) } 70c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org }; 71c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 72c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkASSERT(SK_ARRAY_COUNT(pgs) == kNumPolygons); 73c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (size_t pgIndex = 0; pgIndex < SK_ARRAY_COUNT(pgs); ++pgIndex) { 74c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org fPolygons.push_back().moveTo(pgs[pgIndex].fPoints[0].fX, 75c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org pgs[pgIndex].fPoints[0].fY); 76c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (size_t ptIndex = 1; ptIndex < pgs[pgIndex].fPointNum; ++ptIndex) { 77c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org fPolygons.back().lineTo(pgs[pgIndex].fPoints[ptIndex].fX, 78c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org pgs[pgIndex].fPoints[ptIndex].fY); 79c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 80c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org fPolygons.back().close(); 81c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 82c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 83c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 84c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // Set the location for the current test on the canvas 85c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static void SetLocation(SkCanvas* canvas, int counter, int lineNum) { 86c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkScalar x = SK_Scalar1 * kCellSize * (counter % lineNum) + 30 + SK_Scalar1 / 4; 87c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkScalar y = SK_Scalar1 * kCellSize * (counter / lineNum) + 30 + 3 * SK_Scalar1 / 4; 88c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->translate(x, y); 89c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 90c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 91c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static void SetColorAndAlpha(SkPaint* paint, SkLCGRandom* rand) { 92c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkColor color = rand->nextU(); 93c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org color |= 0xff000000; 94c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint->setColor(color); 95c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org if (40 == paint->getStrokeWidth()) { 96c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint->setAlpha(0xA0); 97c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 98c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 99c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 100c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 101c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // Stroke widths are: 102c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // 0(may use hairline rendering), 10(common case for stroke-style) 103c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // 40(>= geometry width/height, make the contour filled in fact) 104c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kStrokeWidths[] = {0, 10, 40}; 105c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkASSERT(kNumStrokeWidths == SK_ARRAY_COUNT(kStrokeWidths)); 106c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 107c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const SkPaint::Join kJoins[] = { 108c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPaint::kMiter_Join, SkPaint::kRound_Join, SkPaint::kBevel_Join 109c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org }; 110c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkASSERT(kNumJoins == SK_ARRAY_COUNT(kJoins)); 111c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 112c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org int counter = 0; 113c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPaint paint; 114c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setAntiAlias(true); 115c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 116c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkLCGRandom rand; 117c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // For stroke style painter 118c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStyle(SkPaint::kStroke_Style); 119c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (int join = 0; join < kNumJoins; ++join) { 120c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (int width = 0; width < kNumStrokeWidths; ++width) { 121c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (int i = 0; i < fPolygons.count(); ++i) { 122c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->save(); 123c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SetLocation(canvas, counter, fPolygons.count()); 124c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 125c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SetColorAndAlpha(&paint, &rand); 126c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStrokeJoin(kJoins[join]); 127c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStrokeWidth(SkIntToScalar(kStrokeWidths[width])); 128c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 129c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->drawPath(fPolygons[i], paint); 130c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->restore(); 131c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org ++counter; 132c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 133c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 134c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 135c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 136c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org // For stroke-and-fill style painter and fill style painter 137c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const SkPaint::Style kStyles[] = { 138c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkPaint::kStrokeAndFill_Style, SkPaint::kFill_Style 139c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org }; 140c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkASSERT(kNumExtraStyles == SK_ARRAY_COUNT(kStyles)); 141c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 142c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStrokeJoin(SkPaint::kMiter_Join); 143c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStrokeWidth(SkIntToScalar(20)); 144c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (int style = 0; style < kNumExtraStyles; ++style) { 145c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org paint.setStyle(kStyles[style]); 146c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org for (int i = 0; i < fPolygons.count(); ++i) { 147c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->save(); 148c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SetLocation(canvas, counter, fPolygons.count()); 149c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SetColorAndAlpha(&paint, &rand); 150c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->drawPath(fPolygons[i], paint); 151c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org canvas->restore(); 152c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org ++counter; 153c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 154c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 155c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org } 156c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 157c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgprivate: 158c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kNumPolygons = 8; 159c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kCellSize = 100; 160c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kNumExtraStyles = 2; 161c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kNumStrokeWidths = 3; 162c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org static const int kNumJoins = 3; 163c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 164c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org SkTArray<SkPath> fPolygons; 165c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org typedef GM INHERITED; 166c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org}; 167c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 168c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org////////////////////////////////////////////////////////////////////////////// 169c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 170c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.orgDEF_GM(return new PolygonsGM;) 171c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org 172c09df2c32e0a1375dbacec1ff40c1a74bcdebc01commit-bot@chromium.org} 173