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_002.cpp b/docs/examples/Image_002.cpp
new file mode 100644
index 0000000..be5ae12
--- /dev/null
+++ b/docs/examples/Image_002.cpp
@@ -0,0 +1,20 @@
+// 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=275356b65d18c8868f4434137350cddc
+REG_FIDDLE(Image_002, 256, 256, true, 0) {
+static void releaseProc(const void* pixels, SkImage::ReleaseContext context) {
+ int* countPtr = static_cast<int*>(context);
+ *countPtr += 1;
+}
+
+void draw(SkCanvas* canvas) {
+ SkColor color = 0;
+ SkPixmap pixmap(SkImageInfo::MakeN32(1, 1, kPremul_SkAlphaType), &color, 4);
+ int releaseCount = 0;
+ sk_sp<SkImage> image(SkImage::MakeFromRaster(pixmap, releaseProc, &releaseCount));
+ SkDebugf("before reset: %d\n", releaseCount);
+ image.reset();
+ SkDebugf("after reset: %d\n", releaseCount);
+}
+} // END FIDDLE