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_006.cpp b/docs/examples/Bitmap_006.cpp
new file mode 100644
index 0000000..9de6348
--- /dev/null
+++ b/docs/examples/Bitmap_006.cpp
@@ -0,0 +1,30 @@
+// 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=de9be45255e48fae445c916a41063abc
+REG_FIDDLE(Bitmap_006, 256, 256, true, 0) {
+void draw(SkCanvas* canvas) {
+ auto debugster = [](const char* prefix, const SkBitmap& b) -> void {
+ const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
+ const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
+ "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
+ "RGBA_F16"};
+ SkDebugf("%s width:%d height:%d colorType:k%s_SkColorType alphaType:k%s_SkAlphaType\n",
+ prefix, b.width(), b.height(), colors[b.colorType()], alphas[b.alphaType()]);
+ };
+ SkBitmap one, two;
+ if (!one.tryAllocPixels(
+ SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kOpaque_SkAlphaType))) {
+ return;
+ }
+ if (!two.tryAllocPixels(
+ SkImageInfo::Make(2, 2, kBGRA_8888_SkColorType, kPremul_SkAlphaType))) {
+ return;
+ }
+ for (int index = 0; index < 2; ++index) {
+ debugster("one", one);
+ debugster("two", two);
+ one.swap(two);
+ }
+}
+} // END FIDDLE