blob: b83279bd0cb70aa50b704c166cbbf6c39e5b82a5 [file] [log] [blame]
* 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 "SkCanvas.h"
#include "SkPath.h"
static void make_bm(SkBitmap* bm) {
bm->allocN32Pixels(60, 60);
SkCanvas canvas(*bm);
SkPaint paint;
SkPath path;
path.moveTo(6, 6);
path.lineTo(6, 54);
path.lineTo(30, 54);
canvas.drawPath(path, paint);
canvas.drawRect(SkRect::MakeLTRB(0.5f, 0.5f, 59.5f, 59.5f), paint);
// This creates a close, but imperfect concatenation of
// scaling the image up by its dst-rect
// scaling the image down by the matrix' scale
// The bug was that for cases like this, we were incorrectly trying to take a
// fast-path in the bitmapshader, but ended up drawing the last col of pixels
// twice. The fix resulted in (a) not taking the fast-path, but (b) drawing
// the image correctly.
DEF_SIMPLE_GM(bitmaprecttest, canvas, 320, 240) {
SkBitmap bm;
canvas->drawBitmap(bm, 150, 45, nullptr);
SkScalar scale = 0.472560018f;
canvas->scale(scale, scale);
canvas->drawBitmapRect(bm, SkRect::MakeXYWH(100, 100, 128, 128), nullptr);
canvas->scale(-1, 1);
canvas->drawBitmap(bm, -310, 45, nullptr);