xref: /aosp_15_r20/external/skia/docs/examples/Surface_MakeRenderTarget.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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(Surface_MakeRenderTarget, 256, 64, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 32);
7     SkPaint paint;
8 
9     auto dContext = GrAsDirectContext(canvas->recordingContext());
10     if (!dContext) {
11         return;
12     }
13 
14     SkImageInfo info = SkImageInfo::MakeN32(256, 64, kOpaque_SkAlphaType);
15     for (auto surfaceOrigin : { kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin } ) {
16         auto gpuSurface(SkSurfaces::RenderTarget(
17                 dContext, skgpu::Budgeted::kNo, info, 0, surfaceOrigin, nullptr));
18         auto surfaceCanvas = gpuSurface->getCanvas();
19         surfaceCanvas->clear(SK_ColorWHITE);
20         surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
21         sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
22         canvas->drawImage(image, 0, 0);
23         canvas->translate(0, 128);
24     }
25 }
26 }  // END FIDDLE
27