83c2f70b51
Motivation: it would be a good idea if the API documentation examples
were checked into the skia repository, so we could make sure they
compile as part of the commit queue.
Fiddle would make/update a named fiddle each time it gets a new
commit of Skia, extracted from the code in the examples/ directory.
The docs would point at those named fiddles. Named fiddles have urls
in the form:
https://fiddle.skia.org/c/@Bitmap_000
Then we would stick a link to the example into the header documentation
like this:
/** Allocates the pixel memory for the bitmap, given its dimensions
and SkColorType. Returns true on success, where success means
either setPixels() or setPixelRef() was called.
@param bitmap SkBitmap containing SkImageInfo as input, and
SkPixelRef as output
@return true if SkPixelRef was allocated
@example https://fiddle.skia.org/c/@Bitmap_000
*/
bool allocPixelRef(SkBitmap* bitmap) override;
There are still around 200 disabled examples that need to be fixed
(these result from API changes since the author left).
Change-Id: I14a31348a9ccaaa31f65424b91e3a3533d2583a7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/198824
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
24 lines
1.0 KiB
C++
24 lines
1.0 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 "fiddle/examples.h"
|
|
// HASH=484d60dab5d846bf28c7a4d48892324a
|
|
REG_FIDDLE(Surface_022, 256, 64, false, 0) {
|
|
void draw(SkCanvas* canvas) {
|
|
sk_sp<SkSurface> surf(SkSurface::MakeRasterN32Premul(64, 64));
|
|
auto surfCanvas = surf->getCanvas();
|
|
surfCanvas->clear(SK_ColorRED);
|
|
SkPaint paint;
|
|
surfCanvas->drawOval({4, 8, 58, 54}, paint);
|
|
SkImageInfo info = SkImageInfo::Make(64, 64, kBGRA_8888_SkColorType, kPremul_SkAlphaType);
|
|
sk_sp<SkData> data(SkData::MakeUninitialized(info.minRowBytes() * info.height()));
|
|
sk_bzero(data->writable_data(), info.minRowBytes() * info.height());
|
|
for (int x : { 32, -32 } ) {
|
|
for (int y : { 32, -32 } ) {
|
|
surf->readPixels(info, data->writable_data(), info.minRowBytes(), x, y);
|
|
}
|
|
}
|
|
sk_sp<SkImage> image = SkImage::MakeRasterData(info, data, info.minRowBytes());
|
|
canvas->drawImage(image, 0, 0);
|
|
}
|
|
} // END FIDDLE
|