skia2/docs/examples/PreMultiplyColor.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

25 lines
1.3 KiB
C++

#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 "tools/fiddle/examples.h"
// HASH=0bcc0f86a2aefc899f3500503dce6968
REG_FIDDLE(PreMultiplyColor, 300, 128, false, 0) {
void draw(SkCanvas* canvas) {
SkColor unpremultiplied = SkColorSetARGB(160, 128, 160, 192);
SkPMColor premultiplied = SkPreMultiplyColor(unpremultiplied);
canvas->drawString("Unpremultiplied:", 20, 20, SkPaint());
std::string str = "alpha=" + std::to_string(SkColorGetA(unpremultiplied));
str += " red=" + std::to_string(SkColorGetR(unpremultiplied));
str += " green=" + std::to_string(SkColorGetG(unpremultiplied));
str += " blue=" + std::to_string(SkColorGetB(unpremultiplied));
canvas->drawString(str.c_str(), 20, 40, SkPaint());
canvas->drawString("Premultiplied:", 20, 80, SkPaint());
str = "alpha=" + std::to_string(SkColorGetA(premultiplied));
str += " red=" + std::to_string(SkColorGetR(premultiplied));
str += " green=" + std::to_string(SkColorGetG(premultiplied));
str += " blue=" + std::to_string(SkColorGetB(premultiplied));
canvas->drawString(str.c_str(), 20, 100, SkPaint());
}
} // END FIDDLE
#endif // Disabled until updated to use current API.