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=8e6530b26ab4096a9a91cfaadda1c568
5REG_FIDDLE(Surface_MakeRasterDirectReleaseProc, 256, 256, true, 0) {
6static void release_direct_surface_storage(void* pixels, void* context) {
7    if (pixels == context) {
8        SkDebugf("expected release context\n");
9    }
10    sk_free(pixels);
11}
12
13void draw(SkCanvas* ) {
14    SkImageInfo info = SkImageInfo::MakeN32Premul(3, 3);
15    const size_t rowBytes = info.minRowBytes();
16    void* pixels = sk_malloc_throw(info.computeByteSize(rowBytes));
17    sk_sp<SkSurface> surface(SkSurface::MakeRasterDirectReleaseProc(info, pixels, rowBytes,
18            release_direct_surface_storage, pixels));
19    SkCanvas* canvas = surface->getCanvas();
20    canvas->clear(SK_ColorWHITE);
21    SkPMColor* colorPtr = (SkPMColor*) pixels;
22    SkPMColor pmWhite = colorPtr[0];
23    SkPaint paint;
24    canvas->drawPoint(1, 1, paint);
25    canvas->flush();  // ensure that point was drawn
26    for (int y = 0; y < info.height(); ++y) {
27        for (int x = 0; x < info.width(); ++x) {
28            SkDebugf("%c", *colorPtr++ == pmWhite ? '-' : 'x');
29        }
30        SkDebugf("\n");
31    }
32}
33}  // END FIDDLE
34