Compile all fiddle examples locally
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>
diff --git a/docs/examples/Image_039.cpp b/docs/examples/Image_039.cpp
new file mode 100644
index 0000000..e8e9414
--- /dev/null
+++ b/docs/examples/Image_039.cpp
@@ -0,0 +1,27 @@
+// 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=85a76163138a2720ac003691d6363938
+REG_FIDDLE(Image_039, 256, 256, false, 5) {
+void draw(SkCanvas* canvas) {
+ sk_sp<SkImageFilter> shadowFilter = SkDropShadowImageFilter::Make(
+ -10.0f * frame, 5.0f * frame, 3.0f, 3.0f, SK_ColorBLUE,
+ SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode,
+ nullptr);
+ sk_sp<SkImageFilter> offsetFilter = SkOffsetImageFilter::Make(40, 40, shadowFilter, nullptr);
+ SkIRect subset = image->bounds();
+ SkIRect clipBounds = image->bounds();
+ clipBounds.outset(60, 60);
+ SkIRect outSubset;
+ SkIPoint offset;
+ sk_sp<SkImage> filtered(image->makeWithFilter(offsetFilter.get(), subset, clipBounds,
+ &outSubset, &offset));
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setStyle(SkPaint::kStroke_Style);
+ canvas->drawLine(0, 0, offset.fX, offset.fY, paint);
+ canvas->translate(offset.fX, offset.fY);
+ canvas->drawImage(filtered, 0, 0);
+ canvas->drawRect(SkRect::Make(outSubset), paint);
+}
+} // END FIDDLE