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/Bitmap_072.cpp b/docs/examples/Bitmap_072.cpp
new file mode 100644
index 0000000..371535b
--- /dev/null
+++ b/docs/examples/Bitmap_072.cpp
@@ -0,0 +1,26 @@
+// 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=9b3133a6673d2514d166398adbe1f9f4
+REG_FIDDLE(Bitmap_072, 256, 256, false, 3) {
+void draw(SkCanvas* canvas) {
+ std::vector<int32_t> srcPixels;
+ int width = image->width();
+ int height = image->height();
+ srcPixels.resize(height * width * 4);
+ SkPixmap pixmap(SkImageInfo::MakeN32Premul(width, height), (const void*) &srcPixels.front(),
+ width * 4);
+ image->readPixels(pixmap, 0, 0);
+ canvas->scale(.5f, .5f);
+ width /= 4;
+ height /= 4;
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ SkBitmap bitmap;
+ bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height));
+ bitmap.writePixels(pixmap, -y * width, -x * height);
+ canvas->drawBitmap(bitmap, x * width, y * height);
+ }
+ }
+}
+} // END FIDDLE