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/Paint_017.cpp b/docs/examples/Paint_017.cpp
new file mode 100644
index 0000000..0fe47e1
--- /dev/null
+++ b/docs/examples/Paint_017.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=76d4d4a7931a48495e4d5f54e073be53
+REG_FIDDLE(Paint_017, 256, 256, false, 0) {
+void draw(SkCanvas* canvas) {
+ canvas->clear(0);
+ SkBitmap bm32;
+ bm32.allocPixels(SkImageInfo::Make(20, 10, kN32_SkColorType, kPremul_SkAlphaType));
+ SkCanvas c32(bm32);
+ SkPoint points[] = {{0, 0}, {20, 0}};
+ SkColor colors[] = {0xFF334455, 0xFF662211 };
+ SkPaint paint;
+ paint.setShader(SkGradientShader::MakeLinear(
+ points, colors, nullptr, SK_ARRAY_COUNT(colors),
+ SkShader::kClamp_TileMode, 0, nullptr));
+ paint.setDither(true);
+ c32.drawPaint(paint);
+ canvas->scale(12, 12);
+ canvas->drawBitmap(bm32, 0, 0);
+ paint.setBlendMode(SkBlendMode::kPlus);
+ canvas->drawBitmap(bm32, 0, 11, &paint);
+ canvas->drawBitmap(bm32, 0, 11, &paint);
+ canvas->drawBitmap(bm32, 0, 11, &paint);
+}
+} // END FIDDLE