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_010.cpp b/docs/examples/ImageInfo_010.cpp
new file mode 100644
index 0000000..fbcc19a
--- /dev/null
+++ b/docs/examples/ImageInfo_010.cpp
@@ -0,0 +1,29 @@
+// 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=92f81aa0459230459600a01e79ccff29
+REG_FIDDLE(ImageInfo_010, 256, 96, false, 0) {
+void draw(SkCanvas* canvas) {
+ canvas->scale(16, 16);
+ SkBitmap bitmap;
+ SkImageInfo imageInfo = SkImageInfo::Make(2, 2, kRGB_101010x_SkColorType, kOpaque_SkAlphaType);
+ bitmap.allocPixels(imageInfo);
+ SkCanvas offscreen(bitmap);
+ offscreen.clear(SK_ColorGREEN);
+ canvas->drawBitmap(bitmap, 0, 0);
+ auto pack101010x = [](unsigned r, unsigned g, unsigned b) -> uint32_t {
+ return (r << 0) | (g << 10) | (b << 20);
+ };
+ uint32_t redBits[] = { pack101010x(0x3FF, 0x000, 0x000), pack101010x(0x2ff, 0x000, 0x000),
+ pack101010x(0x1ff, 0x000, 0x000), pack101010x(0x0ff, 0x000, 0x000) };
+ uint32_t blueBits[] = { pack101010x(0x000, 0x000, 0x3FF), pack101010x(0x000, 0x000, 0x2ff),
+ pack101010x(0x000, 0x000, 0x1ff), pack101010x(0x000, 0x000, 0x0ff) };
+ if (bitmap.installPixels(imageInfo, (void*) redBits, imageInfo.minRowBytes())) {
+ canvas->drawBitmap(bitmap, 2, 2);
+ }
+ SkPixmap bluePixmap(imageInfo, &blueBits, imageInfo.minRowBytes());
+ if (bitmap.installPixels(imageInfo, (void*) blueBits, imageInfo.minRowBytes())) {
+ canvas->drawBitmap(bitmap, 4, 4);
+ }
+}
+} // END FIDDLE