Added GM and Bench

Added GM's and Bench


Added GM file nate_gradients.cpp

BUG=
R=reed@google.com, bsalomon@google.com

Author: dierk@google.com

Review URL: https://chromiumcodereview.appspot.com/18259012

git-svn-id: http://skia.googlecode.com/svn/trunk@9938 2bbb7eff-a529-9590-31e7-b0007b416f81

bench/GradientBench.cpp

@@ -22,20 +22,11 @@ struct GradData {
 };
 
 static const SkColor gColors[] = {
-    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK
-};
-static const SkScalar gPos0[] = { 0, SK_Scalar1 };
-static const SkScalar gPos1[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
-static const SkScalar gPos2[] = {
-    0, SK_Scalar1/8, SK_Scalar1/2, SK_Scalar1*7/8, SK_Scalar1
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
 };
 
 static const GradData gGradData[] = {
     { 2, gColors, NULL },
-    { 2, gColors, gPos0 },
-    { 2, gColors, gPos1 },
-    { 5, gColors, NULL },
-    { 5, gColors, gPos2 }
 };
 
 /// Ignores scale

gm/gradientDirtyLaundry.cpp

@@ -0,0 +1,111 @@
+
+/*
+ * Copyright 2013 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 "SkGradientShader.h"
+
+using namespace skiagm;
+
+struct GradData {
+    int             fCount;
+    const SkColor*  fColors;
+    const SkScalar* fPos;
+};
+
+static const SkColor gColors[] = {
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
+};
+
+//static const SkScalar gPos[] = { SK_Scalar1*999/2000, SK_Scalar1*1001/2000 };
+
+static const GradData gGradData[] = {
+    { 40, gColors, NULL },
+    //  { 2, gColors, gPos },
+    //  { 2, gCol2, NULL },
+};
+
+static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data,
+                            SkShader::TileMode tm, SkUnitMapper* mapper) {
+    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos,
+                                          data.fCount, tm, mapper);
+}
+
+static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data,
+                            SkShader::TileMode tm, SkUnitMapper* mapper) {
+    SkPoint center;
+    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
+               SkScalarAve(pts[0].fY, pts[1].fY));
+    return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
+                                          data.fPos, data.fCount, tm, mapper);
+}
+
+static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data,
+                           SkShader::TileMode, SkUnitMapper* mapper) {
+    SkPoint center;
+    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
+               SkScalarAve(pts[0].fY, pts[1].fY));
+    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors,
+                                         data.fPos, data.fCount, mapper);
+}
+
+
+typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data,
+                               SkShader::TileMode tm, SkUnitMapper* mapper);
+static const GradMaker gGradMakers[] = {
+    MakeLinear, MakeRadial, MakeSweep, 
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+class GradientsGM : public GM {
+public:
+    GradientsGM() {
+        this->setBGColor(0xFFDDDDDD);
+    }
+
+protected:
+    SkString onShortName() SK_OVERRIDE { return SkString("gradient_dirty_laundry"); }
+    virtual SkISize onISize() SK_OVERRIDE { return make_isize(640, 615); }
+
+    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+        SkPoint pts[2] = { { 0, 0 },
+                           { SkIntToScalar(100), SkIntToScalar(100) }
+        };
+        SkShader::TileMode tm = SkShader::kClamp_TileMode;
+        SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
+        SkPaint paint;
+        paint.setAntiAlias(true);
+
+        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
+        for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
+            canvas->save();
+            for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
+                SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL);
+                paint.setShader(shader)->unref();
+                canvas->drawRect(r, paint);
+                canvas->translate(0, SkIntToScalar(120));
+            }
+            canvas->restore();
+            canvas->translate(SkIntToScalar(120), 0);
+        }
+    }
+
+private:
+    typedef GM INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new GradientsGM; }
+static GMRegistry reg(MyFactory);

gyp/gmslides.gypi

@@ -50,6 +50,7 @@
     '../gm/getpostextpath.cpp',
     '../gm/giantbitmap.cpp',
     '../gm/gradients.cpp',
+    '../gm/gradientDirtyLaundry.cpp',
     '../gm/gradient_matrix.cpp',
     '../gm/gradtext.cpp',
     '../gm/hairlines.cpp',