83c2f70b51
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>
26 lines
1010 B
C++
26 lines
1010 B
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "fiddle/examples.h"
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// HASH=7822d78f5cacf5c04267cbbc6c6d0b80
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REG_FIDDLE(Pixmap_038, 256, 64, false, 0) {
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void draw(SkCanvas* canvas) {
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SkImageInfo info = SkImageInfo::Make(1, 2, kRGBA_F16_SkColorType, kPremul_SkAlphaType);
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uint16_t storage[2][4];
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SkPixmap pixmap(info, storage[0], sizeof(uint64_t));
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SkIRect topPixelBounds = {0, 0, 1, 1};
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pixmap.erase({ 0.65f, 0.45f, 0.25f, 1 }, &topPixelBounds);
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SkIRect bottomPixelBounds = {0, 1, 1, 2};
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pixmap.erase({ 0.25f, 0.65f, 0.45f, 1 }, &bottomPixelBounds);
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SkBitmap bitmap;
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canvas->scale(20, 20);
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bitmap.installPixels(pixmap);
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canvas->drawBitmap(bitmap, 0, 0);
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uint16_t* pixel2 = pixmap.writable_addrF16(0, 1);
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for (int i = 0; i < 4; ++i) {
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pixel2[i] = storage[0][i];
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}
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bitmap.installPixels(pixmap);
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canvas->drawBitmap(bitmap, 4, 0);
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}
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} // END FIDDLE
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