skia2/docs/examples/Matrix_MakeRectToRect.cpp
Mike Reed 2ac6ce8e6e Simplify common case for recttorect
Change-Id: I70e295a677b8cac3d578e3cd57472c833af03877
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/354336
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-15 18:37:46 +00:00

20 lines
799 B
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=a1d6a6721b39350f81021f71a1b93208
REG_FIDDLE(Matrix_MakeRectToRect, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
const SkRect srcs[] = { {0, 0, 0, 0}, {1, 2, 3, 4} };
const SkRect dsts[] = { {0, 0, 0, 0}, {5, 6, 8, 9} };
for (auto src : srcs) {
for (auto dst : dsts) {
SkMatrix matrix = SkMatrix::RectToRect(src, dst);
SkDebugf("src: %g, %g, %g, %g dst: %g, %g, %g, %g\n",
src.fLeft, src.fTop, src.fRight, src.fBottom,
dst.fLeft, dst.fTop, dst.fRight, dst.fBottom);
matrix.dump();
}
}
}
} // END FIDDLE