Add RRect GM
https://codereview.appspot.com/6945063/
git-svn-id: http://skia.googlecode.com/svn/trunk@6866 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/rrects.cpp b/gm/rrects.cpp
new file mode 100644
index 0000000..9d26282
--- /dev/null
+++ b/gm/rrects.cpp
@@ -0,0 +1,150 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gm.h"
+#include "SkRRect.h"
+
+namespace skiagm {
+
+///////////////////////////////////////////////////////////////////////////////
+
+class RRectGM : public GM {
+public:
+ RRectGM(bool doAA, bool doClip) : fDoAA(doAA), fDoClip(doClip) {
+ this->setBGColor(0xFFDDDDDD);
+ this->setUpRRects();
+ }
+
+protected:
+ SkString onShortName() {
+ SkString name("rrect");
+ if (fDoClip) {
+ name.append("_clip");
+ }
+ if (fDoAA) {
+ name.append("_aa");
+ } else {
+ name.append("_bw");
+ }
+
+ return name;
+ }
+
+ virtual SkISize onISize() { return make_isize(kImageWidth, kImageHeight); }
+
+ virtual void onDraw(SkCanvas* canvas) {
+
+ SkPaint paint;
+ // when clipping the AA is pushed into the clip operation
+ paint.setAntiAlias(fDoClip ? false : fDoAA);
+
+ static const SkRect kMaxTileBound = SkRect::MakeWH(SkIntToScalar(kTileX), SkIntToScalar(kTileY));
+
+ int curRRect = 0;
+ for (int y = 1; y < kImageHeight; y += kTileY) {
+ for (int x = 1; x < kImageWidth; x += kTileX) {
+ if (curRRect >= kNumRRects) {
+ break;
+ }
+ SkASSERT(kMaxTileBound.contains(fRRects[curRRect].getBounds()));
+
+ canvas->save();
+ canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
+ if (fDoClip) {
+ canvas->clipRRect(fRRects[curRRect], SkRegion::kReplace_Op, fDoAA);
+ canvas->drawRect(kMaxTileBound, paint);
+ } else {
+ canvas->drawRRect(fRRects[curRRect], paint);
+ }
+ ++curRRect;
+ canvas->restore();
+ }
+ }
+ }
+
+ void setUpRRects() {
+ // each RRect must fit in a 0x0 -> (kTileX-2)x(kTileY-2) block. These will be tiled across
+ // the screen in kTileX x kTileY tiles. The extra empty pixels on each side are for AA.
+
+ // simple cases
+ fRRects[0].setRect(SkRect::MakeWH(kTileX-2, kTileY-2));
+ fRRects[1].setOval(SkRect::MakeWH(kTileX-2, kTileY-2));
+ fRRects[2].setRectXY(SkRect::MakeWH(kTileX-2, kTileY-2), 10, 10);
+
+ // The first complex case needs special handling since it is a square
+ fRRects[kNumSimpleCases].setRectRadii(SkRect::MakeWH(kTileY-2, kTileY-2), gRadii[0]);
+ for (int i = 1; i < SK_ARRAY_COUNT(gRadii); ++i) {
+ fRRects[kNumSimpleCases+i].setRectRadii(SkRect::MakeWH(kTileX-2, kTileY-2), gRadii[i]);
+ }
+ }
+
+private:
+ bool fDoAA;
+ bool fDoClip; // use clipRRect & drawRect instead of drawRRect
+
+ static const int kImageWidth = 640;
+ static const int kImageHeight = 480;
+
+ static const int kTileX = 80;
+ static const int kTileY = 40;
+
+ static const int kNumSimpleCases = 3;
+ static const int kNumComplexCases = 19;
+ static const SkVector RRectGM::gRadii[kNumComplexCases][4];
+
+ static const int kNumRRects = kNumSimpleCases + kNumComplexCases;
+ SkRRect fRRects[kNumRRects];
+
+ typedef GM INHERITED;
+};
+
+// Radii for the various test cases. Order is UL, UR, LR, LL
+const SkVector RRectGM::gRadii[kNumComplexCases][4] = {
+ // a circle
+ { { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY }, { kTileY, kTileY } },
+
+ // odd ball cases
+ { { 8, 8 }, { 32, 32 }, { 8, 8 }, { 32, 32 } },
+ { { 16, 8 }, { 8, 16 }, { 16, 8 }, { 8, 16 } },
+ { { 0, 0 }, { 16, 16 }, { 8, 8 }, { 32, 32 } },
+
+ // UL
+ { { 30, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
+ { { 30, 15 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
+ { { 15, 30 }, { 0, 0 }, { 0, 0 }, { 0, 0 } },
+
+ // UR
+ { { 0, 0 }, { 30, 30 }, { 0, 0 }, { 0, 0 } },
+ { { 0, 0 }, { 30, 15 }, { 0, 0 }, { 0, 0 } },
+ { { 0, 0 }, { 15, 30 }, { 0, 0 }, { 0, 0 } },
+
+ // LR
+ { { 0, 0 }, { 0, 0 }, { 30, 30 }, { 0, 0 } },
+ { { 0, 0 }, { 0, 0 }, { 30, 15 }, { 0, 0 } },
+ { { 0, 0 }, { 0, 0 }, { 15, 30 }, { 0, 0 } },
+
+ // LL
+ { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 30 } },
+ { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 30, 15 } },
+ { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 15, 30 } },
+
+ // over-sized radii
+ { { 0, 0 }, { 100, 400 }, { 0, 0 }, { 0, 0 } },
+ { { 0, 0 }, { 400, 400 }, { 0, 0 }, { 0, 0 } },
+ { { 400, 400 }, { 400, 400 }, { 400, 400 }, { 400, 400 } },
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+DEF_GM( return new RRectGM(false, false); )
+DEF_GM( return new RRectGM(true, false); )
+DEF_GM( return new RRectGM(false, true); )
+DEF_GM( return new RRectGM(true, true); )
+
+}
+
+