skia2/docs/examples/Image_isValid.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

39 lines
1.8 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=afc62f38aebc56af8e425297ec67dd37
REG_FIDDLE(Image_isValid, 256, 256, false, 5) {
void draw(SkCanvas* canvas) {
auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
if (nullptr == image) {
return;
}
SkFont font;
SkPaint paint;
paint.setAntiAlias(true);
canvas->drawImage(image, 0, 0);
canvas->drawString(label, image->width() / 2, image->height() / 4, font, paint);
if (canvas->recordingContext()) {
const char* msg = image->isValid(canvas->recordingContext()) ? "is valid on GPU"
: "not valid on GPU";
canvas->drawString(msg, 20, image->height() * 5 / 8, font, paint);
}
// CONTEXT TODO: Once GrContext is gone, remove this cast
const char* msg = image->isValid((GrRecordingContext*) nullptr) ? "is valid on CPU"
: "not valid on CPU";
canvas->drawString(msg, 20, image->height() * 7 / 8, font, paint);
};
sk_sp<SkImage> bitmapImage(SkImage::MakeFromBitmap(source));
sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(canvas->getGrContext(), backEndTexture,
kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
kOpaque_SkAlphaType, nullptr));
drawImage(image, "image");
canvas->translate(image->width(), 0);
drawImage(bitmapImage, "source");
canvas->translate(-image->width(), image->height());
drawImage(textureImage, "backEndTexture");
}
} // END FIDDLE