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/ImageInfo_007.cpp b/docs/examples/ImageInfo_007.cpp
new file mode 100644
index 0000000..dd21616
--- /dev/null
+++ b/docs/examples/ImageInfo_007.cpp
@@ -0,0 +1,28 @@
+// 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=4260d6cc15db2c60c07f6fdc8d9ae425
+REG_FIDDLE(ImageInfo_007, 256, 96, false, 0) {
+void draw(SkCanvas* canvas) {
+ canvas->scale(16, 16);
+ SkBitmap bitmap;
+ SkImageInfo imageInfo = SkImageInfo::Make(2, 2, kRGB_888x_SkColorType, kOpaque_SkAlphaType);
+ bitmap.allocPixels(imageInfo);
+ SkCanvas offscreen(bitmap);
+ offscreen.clear(SK_ColorGREEN);
+ canvas->drawBitmap(bitmap, 0, 0);
+ auto pack888 = [](unsigned r, unsigned g, unsigned b) -> uint32_t {
+ return (r << 0) | (g << 8) | (b << 16);
+ };
+ uint32_t red888[] = { pack888(0xFF, 0x00, 0x00), pack888(0xbb, 0x00, 0x00),
+ pack888(0x77, 0x00, 0x00), pack888(0x33, 0x00, 0x00) };
+ uint32_t blue888[] = { pack888(0x00, 0x00, 0xFF), pack888(0x00, 0x00, 0xbb),
+ pack888(0x00, 0x00, 0x77), pack888(0x00, 0x00, 0x33) };
+ if (bitmap.installPixels(imageInfo, (void*) red888, imageInfo.minRowBytes())) {
+ canvas->drawBitmap(bitmap, 2, 2);
+ }
+ if (bitmap.installPixels(imageInfo, (void*) blue888, imageInfo.minRowBytes())) {
+ canvas->drawBitmap(bitmap, 4, 4);
+ }
+}
+} // END FIDDLE