remove remaining references to porterduff

git-svn-id: http://skia.googlecode.com/svn/trunk@236 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 116 insertions, 0 deletions

diff --git a/gm/bitmapfilters.cpp b/gm/bitmapfilters.cpp
new file mode 100644
index 0000000000..0487fe6958
--- /dev/null
+++ b/gm/bitmapfilters.cpp
@@ -0,0 +1,116 @@
+#include "gm.h"
+
+namespace skiagm {
+
+static void make_bm(SkBitmap* bm) {
+    const SkColor colors[] = {
+        SK_ColorRED, SK_ColorGREEN,
+        SK_ColorBLUE, SK_ColorWHITE
+    };
+    SkColorTable* ctable = new SkColorTable(colors, 4);
+    bm->setConfig(SkBitmap::kIndex8_Config, 2, 2);
+    bm->allocPixels(ctable);
+    ctable->unref();
+    
+    *bm->getAddr8(0, 0) = 0;
+    *bm->getAddr8(1, 0) = 1;
+    *bm->getAddr8(0, 1) = 2;
+    *bm->getAddr8(1, 1) = 3;
+}
+
+static SkScalar draw_bm(SkCanvas* canvas, const SkBitmap& bm,
+                        SkScalar x, SkScalar y, SkPaint* paint) {
+    canvas->drawBitmap(bm, x, y, paint);
+    return SkIntToScalar(bm.width()) * 5/4;
+}
+
+static SkScalar draw_set(SkCanvas* c, const SkBitmap& bm, SkScalar x,
+                         SkPaint* p) {
+    x += draw_bm(c, bm, x, 0, p);
+    p->setFilterBitmap(true);
+    x += draw_bm(c, bm, x, 0, p);
+    p->setDither(true);
+    return x + draw_bm(c, bm, x, 0, p);
+}
+
+static const char* gConfigNames[] = {
+    "unknown config",
+    "A1",
+    "A8",
+    "Index8",
+    "565",
+    "4444",
+    "8888"
+};
+
+static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) {
+    SkAutoCanvasRestore acr(canvas, true);
+
+    SkPaint paint;
+    SkScalar x = 0;
+    const int scale = 32;
+
+    paint.setAntiAlias(true);
+    const char* name = gConfigNames[bm.config()];
+    canvas->drawText(name, strlen(name), x, SkIntToScalar(bm.height())*scale*5/8,
+                     paint);
+    canvas->translate(SkIntToScalar(48), 0);
+
+    canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale));
+    
+    x += draw_set(canvas, bm, 0, &paint);
+    paint.reset();
+    paint.setAlpha(0x80);
+    draw_set(canvas, bm, x, &paint);
+    return x * scale / 3;
+}
+
+class FilterGM : public GM {
+public:
+    SkBitmap    fBM8, fBM4444, fBM16, fBM32;
+
+	FilterGM() {
+        make_bm(&fBM8);
+        fBM8.copyTo(&fBM4444, SkBitmap::kARGB_4444_Config);
+        fBM8.copyTo(&fBM16, SkBitmap::kRGB_565_Config);
+        fBM8.copyTo(&fBM32, SkBitmap::kARGB_8888_Config);
+    }
+
+protected:
+    virtual SkString onShortName() {
+        return SkString("bitmapfilters");
+    }
+
+	virtual SkISize onISize() {
+        return make_isize(540, 330);
+    }
+
+    virtual void onDraw(SkCanvas* canvas) {
+        canvas->drawColor(0xFFDDDDDD);
+
+        SkScalar x = SkIntToScalar(10);
+        SkScalar y = SkIntToScalar(10);
+        
+        canvas->translate(x, y);
+        y = draw_row(canvas, fBM8);
+        canvas->translate(0, y);
+        y = draw_row(canvas, fBM4444);
+        canvas->translate(0, y);
+        y = draw_row(canvas, fBM16);
+        canvas->translate(0, y);
+        draw_row(canvas, fBM32);
+    }
+    
+private:
+    typedef GM INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static GM* MyFactory(void*) { return new FilterGM; }
+static GMRegistry reg(MyFactory);
+
+}
+
+
+