From a0591698fdc13f9923a5a71a108f06ed12f31c9d Mon Sep 17 00:00:00 2001
From: "mike@reedtribe.org"
 <mike@reedtribe.org@2bbb7eff-a529-9590-31e7-b0007b416f81>
Date: Thu, 18 Oct 2012 02:01:59 +0000
Subject: add two more tilemode gms, in advance of experimenting w/ decal

git-svn-id: http://skia.googlecode.com/svn/trunk@5990 2bbb7eff-a529-9590-31e7-b0007b416f81
---
 gm/tilemodes.cpp | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 115 insertions(+), 8 deletions(-)

(limited to 'gm/tilemodes.cpp')

diff --git a/gm/tilemodes.cpp b/gm/tilemodes.cpp
index 08bcb79f65..36b26087ac 100644
--- a/gm/tilemodes.cpp
+++ b/gm/tilemodes.cpp
@@ -19,8 +19,6 @@
 #include "SkUnitMappers.h"
 #include "SkBlurDrawLooper.h"
 
-namespace skiagm {
-
 static void makebm(SkBitmap* bm, SkBitmap::Config config, int w, int h) {
     bm->setConfig(config, w, h);
     bm->allocPixels();
@@ -60,7 +58,7 @@ static const SkBitmap::Config gConfigs[] = {
 static const int gWidth = 32;
 static const int gHeight = 32;
 
-class TilingGM : public GM {
+class TilingGM : public skiagm::GM {
     SkBlurDrawLooper    fLooper;
 public:
     TilingGM()
@@ -78,7 +76,7 @@ protected:
         return SkString("tilemodes");
     }
 
-    SkISize onISize() { return make_isize(880, 560); }
+    SkISize onISize() { return SkISize::Make(880, 560); }
 
     virtual void onDraw(SkCanvas* canvas) {
 
@@ -145,13 +143,122 @@ protected:
     }
 
 private:
-    typedef GM INHERITED;
+    typedef skiagm::GM INHERITED;
 };
 
-//////////////////////////////////////////////////////////////////////////////
+static SkShader* make_bm(SkShader::TileMode tx, SkShader::TileMode ty) {
+    SkBitmap bm;
+    makebm(&bm, SkBitmap::kARGB_8888_Config, gWidth, gHeight);
+    return SkShader::CreateBitmapShader(bm, tx, ty);
+}
 
-static GM* MyFactory(void*) { return new TilingGM; }
-static GMRegistry reg(MyFactory);
+static SkShader* make_grad(SkShader::TileMode tx, SkShader::TileMode ty) {
+    SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(gWidth), SkIntToScalar(gHeight)} };
+    SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 };
+    SkScalar rad = SkIntToScalar(gWidth)/2;
+    SkColor colors[] = { 0xFFFF0000, 0xFF0044FF };
+
+    int index = (int)ty;
+    switch (index % 3) {
+        case 0:
+            return SkGradientShader::CreateLinear(pts, colors, NULL, SK_ARRAY_COUNT(colors), tx);
+        case 1:
+            return SkGradientShader::CreateRadial(center, rad, colors, NULL, SK_ARRAY_COUNT(colors), tx);
+        case 2:
+            return SkGradientShader::CreateSweep(center.fX, center.fY, colors, NULL, SK_ARRAY_COUNT(colors));
+    }
+}
 
+static SkShader* make_radial(SkShader::TileMode tx, SkShader::TileMode ty) {
+    SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 };
+    SkScalar rad = SkIntToScalar(gWidth)/2;
+    SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
+    
+    return SkGradientShader::CreateRadial(center, rad, colors, NULL, SK_ARRAY_COUNT(colors), tx);
 }
 
+typedef SkShader* (*ShaderProc)(SkShader::TileMode, SkShader::TileMode);
+
+class Tiling2GM : public skiagm::GM {
+    ShaderProc fProc;
+    SkString   fName;
+public:
+    Tiling2GM(ShaderProc proc, const char name[]) : fProc(proc) {
+        fName.printf("tilemode_%s", name);
+    }
+    
+protected:
+    SkString onShortName() {
+        return fName;
+    }
+    
+    SkISize onISize() { return SkISize::Make(880, 560); }
+    
+    virtual void onDraw(SkCanvas* canvas) {
+        canvas->scale(SkIntToScalar(3)/2, SkIntToScalar(3)/2);
+
+        const SkScalar w = SkIntToScalar(gWidth);
+        const SkScalar h = SkIntToScalar(gHeight);
+        SkRect r = { -w, -h, w*2, h*2 };
+
+        static const SkShader::TileMode gModes[] = {
+            SkShader::kClamp_TileMode, SkShader::kRepeat_TileMode, SkShader::kMirror_TileMode
+        };
+        static const char* gModeNames[] = {
+            "Clamp", "Repeat", "Mirror"
+        };
+        
+        SkScalar y = SkIntToScalar(24);
+        SkScalar x = SkIntToScalar(66);
+        
+        SkPaint p;
+        p.setAntiAlias(true);
+        p.setTextAlign(SkPaint::kCenter_Align);
+
+        for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
+            SkString str(gModeNames[kx]);
+            canvas->drawText(str.c_str(), str.size(), x + r.width()/2, y, p);
+            x += r.width() * 4 / 3;
+        }
+        
+        y += SkIntToScalar(16) + h;
+        p.setTextAlign(SkPaint::kRight_Align);
+
+        for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
+            x = SkIntToScalar(16) + w;
+
+            SkString str(gModeNames[ky]);
+            canvas->drawText(str.c_str(), str.size(), x, y + h/2, p);
+
+            x += SkIntToScalar(50);
+            for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
+                SkPaint paint;
+                paint.setShader(fProc(gModes[kx], gModes[ky]))->unref();
+                
+                canvas->save();
+                canvas->translate(x, y);
+                canvas->drawRect(r, paint);
+                canvas->restore();
+                
+                x += r.width() * 4 / 3;
+            }
+            y += r.height() * 4 / 3;
+        }
+    }
+    
+private:
+    typedef skiagm::GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static skiagm::GM* MyFactory(void*) { return new TilingGM; }
+static skiagm::GMRegistry reg(MyFactory);
+
+static skiagm::GM* MyFactory2(void*) { return new Tiling2GM(make_bm, "bitmap"); }
+static skiagm::GMRegistry reg2(MyFactory2);
+
+static skiagm::GM* MyFactory3(void*) { return new Tiling2GM(make_grad, "gradient"); }
+static skiagm::GMRegistry reg3(MyFactory3);
+
+
-- 
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