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_isValid, 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 SkFont font = SkFont(fontMgr->matchFamilyStyle(nullptr, {}));
16 SkPaint paint;
17 paint.setAntiAlias(true);
18 canvas->drawImage(image, 0, 0);
19 canvas->drawString(label, image->width() / 2, image->height() / 4, font, paint);
20 if (dContext) {
21 const char* msg = image->isValid(dContext) ? "is valid on GPU"
22 : "not valid on GPU";
23 canvas->drawString(msg, 20, image->height() * 5 / 8, font, paint);
24 }
25
26 const char* msg = image->isValid(nullptr) ? "is valid on CPU" : "not valid on CPU";
27
28 canvas->drawString(msg, 20, image->height() * 7 / 8, font, paint);
29 };
30 sk_sp<SkImage> bitmapImage(source.asImage());
31 sk_sp<SkImage> textureImage(SkImages::BorrowTextureFrom(dContext,
32 backEndTexture,
33 kTopLeft_GrSurfaceOrigin,
34 kRGBA_8888_SkColorType,
35 kOpaque_SkAlphaType,
36 nullptr));
37 drawImage(image, "image");
38 canvas->translate(image->width(), 0);
39 drawImage(bitmapImage, "source");
40 canvas->translate(-image->width(), image->height());
41 drawImage(textureImage, "backEndTexture");
42 }
43 } // END FIDDLE
44