1// Copyright 2019 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3#include "tools/fiddle/examples.h"
4// HASH=a803910ada4f8733f0b62456afead55f
5REG_FIDDLE(Surface_MakeRaster, 256, 256, true, 0) {
6void draw(SkCanvas* ) {
7    SkImageInfo info = SkImageInfo::MakeN32Premul(3, 3);
8    const size_t rowBytes = 64;
9    sk_sp<SkSurface> surface(SkSurface::MakeRaster(info, rowBytes, nullptr));
10    SkCanvas* canvas = surface->getCanvas();
11    canvas->clear(SK_ColorWHITE);
12    SkPixmap pixmap;
13    if (surface->peekPixels(&pixmap)) {
14        const uint32_t* colorPtr = pixmap.addr32();
15        SkPMColor pmWhite = colorPtr[0];
16        SkPaint paint;
17        canvas->drawPoint(1, 1, paint);
18        canvas->flush();  // ensure that point was drawn
19        for (int y = 0; y < info.height(); ++y) {
20            for (int x = 0; x < info.width(); ++x) {
21                SkDebugf("%c", colorPtr[x] == pmWhite ? '-' : 'x');
22            }
23            colorPtr += rowBytes / sizeof(colorPtr[0]);
24            SkDebugf("\n");
25        }
26    }
27}
28}  // END FIDDLE
29