skia2/docs/examples/Matrix_setConcat.cpp
Mike Reed ecdd979bc0 drawBitmap is deprecated
Bug: skia:11216
Change-Id: I4affb8e00ff7e7b3e8d873ddfd653f397ca8d928
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360979
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-28 02:44:21 +00:00

17 lines
692 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=0381a10ac69bdefdf9d15b47cbb9fefe
REG_FIDDLE(Matrix_setConcat, 256, 256, false, 3) {
void draw(SkCanvas* canvas) {
SkMatrix matrix, matrix2;
SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};
SkRect::Make(source.bounds()).toQuad(bitmapBounds);
matrix.setPolyToPoly(bitmapBounds, perspect, 4);
matrix2.setPolyToPoly(perspect, bitmapBounds, 4);
matrix.setConcat(matrix, matrix2);
canvas->concat(matrix);
canvas->drawImage(image, 0, 0);
}
} // END FIDDLE