xref: /aosp_15_r20/external/skia/docs/examples/Surface_MakeRenderTarget_3.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Surface_MakeRenderTarget_3, 256, 256, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     SkFont font(fontMgr->matchFamilyStyle(nullptr, {}), 32);
7*c8dee2aaSAndroid Build Coastguard Worker     SkPaint paint;
8*c8dee2aaSAndroid Build Coastguard Worker     auto context = canvas->recordingContext();
9*c8dee2aaSAndroid Build Coastguard Worker     if (!context) {
10*c8dee2aaSAndroid Build Coastguard Worker          canvas->drawString("GPU only!", 20, 40, font, paint);
11*c8dee2aaSAndroid Build Coastguard Worker          return;
12*c8dee2aaSAndroid Build Coastguard Worker     }
13*c8dee2aaSAndroid Build Coastguard Worker     SkImageInfo info = SkImageInfo::MakeN32(256, 64, kOpaque_SkAlphaType);
14*c8dee2aaSAndroid Build Coastguard Worker     auto gpuSurface(SkSurfaces::RenderTarget(context, skgpu::Budgeted::kNo, info));
15*c8dee2aaSAndroid Build Coastguard Worker     auto surfaceCanvas = gpuSurface->getCanvas();
16*c8dee2aaSAndroid Build Coastguard Worker     surfaceCanvas->clear(SK_ColorWHITE);
17*c8dee2aaSAndroid Build Coastguard Worker     surfaceCanvas->drawString("GPU rocks!", 20, 40, font, paint);
18*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkImage> image(gpuSurface->makeImageSnapshot());
19*c8dee2aaSAndroid Build Coastguard Worker     canvas->drawImage(image, 0, 0);
20*c8dee2aaSAndroid Build Coastguard Worker }
21*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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