d88c2e8e09
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>
27 lines
1014 B
C++
27 lines
1014 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=8aa8ca63dff4641dfc6ea8a3c555d59c
|
|
REG_FIDDLE(Image_readPixels, 256, 256, false, 3) {
|
|
void draw(SkCanvas* canvas) {
|
|
canvas->scale(.5f, .5f);
|
|
const int width = 32;
|
|
const int height = 32;
|
|
std::vector<int32_t> dstPixels;
|
|
dstPixels.resize(height * width * 4);
|
|
SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
|
|
for (int y = 0; y < 512; y += height ) {
|
|
for (int x = 0; x < 512; x += width ) {
|
|
if (image->readPixels(info, &dstPixels.front(), width * 4, x, y)) {
|
|
SkPixmap dstPixmap(info, &dstPixels.front(), width * 4);
|
|
SkBitmap bitmap;
|
|
bitmap.installPixels(dstPixmap);
|
|
canvas->drawBitmap(bitmap, 0, 0);
|
|
}
|
|
canvas->translate(48, 0);
|
|
}
|
|
canvas->translate(-16 * 48, 48);
|
|
}
|
|
}
|
|
} // END FIDDLE
|