skia2/docs/examples/Image_isTextureBacked.cpp
Mike Reed dc607e35e1 Use bitmap.asImage()
Change-Id: Ie16194937530d7cd75f84d9af66c31b77875ef83
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/347043
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2020-12-23 17:41:47 +00:00

36 lines
1.5 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=9cf5c62a3d2243e6577ae563f360ea9d
REG_FIDDLE(Image_isTextureBacked, 256, 256, false, 5) {
void draw(SkCanvas* canvas) {
auto dContext = GrAsDirectContext(canvas->recordingContext());
if (!dContext) {
return;
}
auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
if (nullptr == image) {
return;
}
SkPaint paint;
paint.setAntiAlias(true);
SkFont font;
canvas->drawImage(image, 0, 0);
canvas->drawString(label, 30, image->height() / 4, font, paint);
canvas->drawString(image->isTextureBacked() ? "is GPU texture" : "not GPU texture",
20, image->height() * 3 / 4, font, paint);
};
sk_sp<SkImage> bitmapImage(source.asImage());
sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(dContext, 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