diff options
Diffstat (limited to 'gm/arithmode.cpp')
-rw-r--r-- | gm/arithmode.cpp | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/gm/arithmode.cpp b/gm/arithmode.cpp index 63be6c3871..2a97eca957 100644 --- a/gm/arithmode.cpp +++ b/gm/arithmode.cpp @@ -54,6 +54,18 @@ static SkBitmap make_dst() { return bm; } +static SkBitmap make_arith(const SkBitmap& src, const SkBitmap& dst, + const SkScalar k[]) { + SkBitmap bm = make_bm(); + SkCanvas canvas(bm); + SkPaint paint; + canvas.drawBitmap(dst, 0, 0, NULL); + SkXfermode* xfer = SkArithmeticMode::Create(k[0], k[1], k[2], k[3]); + paint.setXfermode(xfer)->unref(); + canvas.drawBitmap(src, 0, 0, &paint); + return bm; +} + static void show_k_text(SkCanvas* canvas, SkScalar x, SkScalar y, const SkScalar k[]) { SkPaint paint; paint.setTextSize(SkIntToScalar(24)); @@ -104,18 +116,12 @@ protected: SkScalar gap = SkIntToScalar(src.width() + 20); while (k < stop) { SkScalar x = 0; + SkBitmap res = make_arith(src, dst, k); canvas->drawBitmap(src, x, y, NULL); x += gap; canvas->drawBitmap(dst, x, y, NULL); x += gap; - SkRect rect = SkRect::MakeXYWH(x, y, SkIntToScalar(WW), SkIntToScalar(HH)); - canvas->saveLayer(&rect, NULL); - canvas->drawBitmap(dst, x, y, NULL); - SkXfermode* xfer = SkArithmeticMode::Create(k[0], k[1], k[2], k[3]); - SkPaint paint; - paint.setXfermode(xfer)->unref(); - canvas->drawBitmap(src, x, y, &paint); - canvas->restore(); + canvas->drawBitmap(res, x, y, NULL); x += gap; show_k_text(canvas, x, y, k); k += 4; |