skia2/docs/examples/Bitmap_drawsNothing.cpp
Hal Canary d88c2e8e09 Docs: rename examples files to match names
Change-Id: I9a6b2780cfdd91cdd16d5a08eb9ba1214492cb7e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201982
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-03-19 18:49:22 +00:00

18 lines
728 B
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "fiddle/examples.h"
// HASH=daacf43394ce4045a362a48b5774deed
REG_FIDDLE(Bitmap_drawsNothing, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
SkBitmap bitmap;
for (int w : { 0, 8 } ) {
for (bool allocate : { false, true} ) {
bitmap.setInfo(SkImageInfo::MakeA8(w, 8));
allocate ? bitmap.allocPixels() : (void) 0 ;
SkDebugf("empty:%s isNull:%s drawsNothing:%s\n", bitmap.empty() ? "true " : "false",
bitmap.isNull() ? "true " : "false", bitmap.drawsNothing() ? "true" : "false");
}
}
}
} // END FIDDLE