skia2/docs/examples/Surface_characterize.cpp
Robert Phillips d1ce4cb2be Update some of the dox code to GrDirectContext
If we're to remove GrContext all uses must go!

Change-Id: I487a973004c4f080fc5802128770b417d54628e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/301981
Reviewed-by: Adlai Holler <adlai@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2020-07-13 13:57:12 +00:00

32 lines
1.2 KiB
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=6de6f3ef699a72ff26da1b26b23a3316
REG_FIDDLE(Surface_characterize, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
SkFont font(nullptr, 32);
SkPaint paint;
auto context = canvas->recordingContext();
if (!context) {
canvas->drawString("GPU only!", 20, 40, font, paint);
return;
}
sk_sp<SkSurface> gpuSurface = SkSurface::MakeRenderTarget(
context, SkBudgeted::kYes, SkImageInfo::MakeN32Premul(64, 64));
SkSurfaceCharacterization characterization;
if (!gpuSurface->characterize(&characterization)) {
canvas->drawString("characterization unsupported", 20, 40, font, paint);
return;
}
// start of threadable work
SkDeferredDisplayListRecorder recorder(characterization);
SkCanvas* subCanvas = recorder.getCanvas();
subCanvas->clear(SK_ColorGREEN);
sk_sp<SkDeferredDisplayList> displayList = recorder.detach();
// end of threadable work
gpuSurface->draw(displayList);
sk_sp<SkImage> img = gpuSurface->makeImageSnapshot();
canvas->drawImage(std::move(img), 0, 0);
}
} // END FIDDLE