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 REG_FIDDLE(Image_isTextureBacked, 256, 256, false, 5) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 auto dContext = GrAsDirectContext(canvas->recordingContext());
7 if (!dContext) {
8 return;
9 }
10
11 auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
12 if (nullptr == image) {
13 return;
14 }
15 SkPaint paint;
16 paint.setAntiAlias(true);
17 SkFont font = SkFont(fontMgr->matchFamilyStyle(nullptr, {}));
18 canvas->drawImage(image, 0, 0);
19 canvas->drawString(label, 30, image->height() / 4, font, paint);
20 canvas->drawString(image->isTextureBacked() ? "is GPU texture" : "not GPU texture",
21 20, image->height() * 3 / 4, font, paint);
22 };
23 sk_sp<SkImage> bitmapImage(source.asImage());
24 sk_sp<SkImage> textureImage(SkImages::BorrowTextureFrom(dContext,
25 backEndTexture,
26 kTopLeft_GrSurfaceOrigin,
27 kRGBA_8888_SkColorType,
28 kOpaque_SkAlphaType,
29 nullptr));
30 drawImage(image, "image");
31 canvas->translate(image->width(), 0);
32 drawImage(bitmapImage, "source");
33 canvas->translate(-image->width(), image->height());
34 drawImage(textureImage, "backEndTexture");
35 }
36 } // END FIDDLE
37