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_TextureFromImage, 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,
12 GrDirectContext* dContext,
13 const char* label) -> void {
14 if (nullptr == image || nullptr == dContext) {
15 return;
16 }
17
18 SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 12);
19
20 SkPaint paint;
21 paint.setAntiAlias(true);
22
23 sk_sp<SkImage> texture = SkImages::TextureFromImage(dContext, image);
24 canvas->drawImage(texture, 0, 0);
25 canvas->drawString(label, 20, texture->height() / 4, font, paint);
26 };
27 sk_sp<SkImage> bitmapImage(source.asImage());
28
29 sk_sp<SkImage> textureImage(SkImages::BorrowTextureFrom(dContext,
30 backEndTexture,
31 kTopLeft_GrSurfaceOrigin,
32 kRGBA_8888_SkColorType,
33 kOpaque_SkAlphaType,
34 nullptr));
35 drawImage(image, dContext, "image");
36 canvas->translate(image->width(), 0);
37 drawImage(bitmapImage, dContext, "source");
38 canvas->translate(-image->width(), image->height());
39 drawImage(textureImage, dContext, "backEndTexture");
40 }
41 } // END FIDDLE
42