skia2/docs/examples/Bitmap_allocN32Pixels.cpp
Mike Reed 34a0c97f5e don't use drawBitmap
Bug: skia:11216
Change-Id: I89a40e330f27f30c461f2b6012bf26c082b66094
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/359076
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-26 02:24:21 +00:00

24 lines
912 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 "tools/fiddle/examples.h"
// HASH=c717491f9251604724c9cbde7088ec20
REG_FIDDLE(Bitmap_allocN32Pixels, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkRandom random;
SkBitmap bitmap;
bitmap.allocN32Pixels(64, 64);
bitmap.eraseColor(SK_ColorTRANSPARENT);
for (int y = 0; y < 256; y += 64) {
for (int x = 0; x < 256; x += 64) {
SkColor color = random.nextU();
uint32_t w = random.nextRangeU(4, 32);
uint32_t cx = random.nextRangeU(0, 64 - w);
uint32_t h = random.nextRangeU(4, 32);
uint32_t cy = random.nextRangeU(0, 64 - h);
bitmap.erase(color, SkIRect::MakeXYWH(cx, cy, w, h));
canvas->drawImage(bitmap.asImage(), x, y);
}
}
}
} // END FIDDLE