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>
35 lines
1.8 KiB
C++
35 lines
1.8 KiB
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=befac1c29ed21507d367e4d824383a04
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REG_FIDDLE(ImageInfo_015, 256, 640, false, 0) {
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void draw(SkCanvas* canvas) {
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const char* colors[] = { "Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
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"BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
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"RGBA_F16" };
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const char* alphas[] = {"Unknown ", "Opaque ", "Premul ", "Unpremul"};
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SkAlphaType alphaTypes[] = { kUnknown_SkAlphaType, kOpaque_SkAlphaType, kPremul_SkAlphaType,
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kUnpremul_SkAlphaType
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};
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SkPaint paint;
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SkFont font(SkTypeface::MakeFromName("monospace", SkFontStyle()), 10);
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int y = 15;
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canvas->drawString(" colorType alphaType canonical", 10, y, font, paint);
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for (SkColorType colorType : {
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kUnknown_SkColorType, kAlpha_8_SkColorType, kRGB_565_SkColorType,
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kARGB_4444_SkColorType, kRGBA_8888_SkColorType, kRGB_888x_SkColorType,
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kBGRA_8888_SkColorType, kRGBA_1010102_SkColorType, kRGB_101010x_SkColorType,
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kGray_8_SkColorType, kRGBA_F16_SkColorType
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} ) {
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for (SkAlphaType alphaType : alphaTypes) {
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SkAlphaType canonicalAlphaType = kUnknown_SkAlphaType;
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bool result = SkColorTypeValidateAlphaType(colorType, alphaType, &canonicalAlphaType);
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SkString string;
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string.printf("%13s %10s %10s", colors[(int) colorType], alphas[(int) alphaType],
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result ? alphas[(int) canonicalAlphaType] : "------ ");
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canvas->drawString(string, 10, y += 14, font, paint);
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}
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}
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}
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} // END FIDDLE
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