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/Canvas_089.cpp b/docs/examples/Canvas_089.cpp
new file mode 100644
index 0000000..9a70556
--- /dev/null
+++ b/docs/examples/Canvas_089.cpp
@@ -0,0 +1,28 @@
+// 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=5df49d1f4da37275a1f10ef7f1a749f0
+REG_FIDDLE(Canvas_089, 256, 64, false, 0) {
+void draw(SkCanvas* canvas) {
+ SkBitmap redBorder;
+ redBorder.allocPixels(SkImageInfo::MakeN32Premul(4, 4));
+ SkCanvas checkRed(redBorder);
+ checkRed.clear(SK_ColorRED);
+ uint32_t checkers[][2] = { { SK_ColorBLACK, SK_ColorWHITE },
+ { SK_ColorWHITE, SK_ColorBLACK } };
+ checkRed.writePixels(
+ SkImageInfo::MakeN32Premul(2, 2), (void*) checkers, sizeof(checkers[0]), 1, 1);
+ canvas->scale(16, 16);
+ canvas->drawBitmap(redBorder, 0, 0, nullptr);
+ canvas->resetMatrix();
+ sk_sp<SkImage> image = SkImage::MakeFromBitmap(redBorder);
+ SkPaint lowPaint;
+ lowPaint.setFilterQuality(kLow_SkFilterQuality);
+ for (auto constraint : { SkCanvas::kStrict_SrcRectConstraint,
+ SkCanvas::kFast_SrcRectConstraint } ) {
+ canvas->translate(80, 0);
+ canvas->drawImageRect(image.get(), SkRect::MakeLTRB(1, 1, 3, 3),
+ SkRect::MakeLTRB(16, 16, 48, 48), &lowPaint, constraint);
+ }
+}
+} // END FIDDLE