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_027.cpp b/docs/examples/Image_027.cpp
new file mode 100644
index 0000000..57c679c
--- /dev/null
+++ b/docs/examples/Image_027.cpp
@@ -0,0 +1,34 @@
+#if 0 // Disabled until updated to use current API.
+// 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=afc62f38aebc56af8e425297ec67dd37
+REG_FIDDLE(Image_027, 256, 256, false, 5) {
+void draw(SkCanvas* canvas) {
+ auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
+ if (nullptr == image) {
+ return;
+ }
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ canvas->drawImage(image, 0, 0);
+ canvas->drawString(label, image->width() / 2, image->height() / 4, paint);
+ if (canvas->getGrContext()) {
+ canvas->drawString(image->isValid(canvas->getGrContext()) ? "is valid on GPU" :
+ "not valid on GPU", 20, image->height() * 5 / 8, paint);
+ }
+ canvas->drawString(image->isValid(nullptr) ? "is valid on CPU" :
+ "not valid on CPU", 20, image->height() * 7 / 8, paint);
+ };
+ sk_sp<SkImage> bitmapImage(SkImage::MakeFromBitmap(source));
+ sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(canvas->getGrContext(), backEndTexture,
+ kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
+ kOpaque_SkAlphaType, nullptr));
+ drawImage(image, "image");
+ canvas->translate(image->width(), 0);
+ drawImage(bitmapImage, "source");
+ canvas->translate(-image->width(), image->height());
+ drawImage(textureImage, "backEndTexture");
+}
+} // END FIDDLE
+#endif // Disabled until updated to use current API.