skia2/docs/examples/Bitmap_swap.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

31 lines
1.3 KiB
C++

// 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=de9be45255e48fae445c916a41063abc
REG_FIDDLE(Bitmap_swap, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
auto debugster = [](const char* prefix, const SkBitmap& b) -> void {
const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
"BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
"RGBA_F16"};
SkDebugf("%s width:%d height:%d colorType:k%s_SkColorType alphaType:k%s_SkAlphaType\n",
prefix, b.width(), b.height(), colors[b.colorType()], alphas[b.alphaType()]);
};
SkBitmap one, two;
if (!one.tryAllocPixels(
SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kOpaque_SkAlphaType))) {
return;
}
if (!two.tryAllocPixels(
SkImageInfo::Make(2, 2, kBGRA_8888_SkColorType, kPremul_SkAlphaType))) {
return;
}
for (int index = 0; index < 2; ++index) {
debugster("one", one);
debugster("two", two);
one.swap(two);
}
}
} // END FIDDLE