skia2/docs/examples/Canvas_SrcRectConstraint.cpp
Mike Reed e1f72f9392 drawBitmap is deprecated
Bug: skia:11216
Change-Id: I15f7723e70cb6b252bf313530fd6d783a7635a00
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360777
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-27 23:18:21 +00:00

28 lines
1.2 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=5df49d1f4da37275a1f10ef7f1a749f0
REG_FIDDLE(Canvas_SrcRectConstraint, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
SkBitmap redBorder;
redBorder.allocPixels(SkImageInfo::MakeN32Premul(4, 4));
SkCanvas checkRed(redBorder);
checkRed.clear(SK_ColorRED);
uint32_t checkers[][2] = { { SK_ColorBLACK, SK_ColorWHITE },
{ SK_ColorWHITE, SK_ColorBLACK } };
checkRed.writePixels(
SkImageInfo::MakeN32Premul(2, 2), (void*) checkers, sizeof(checkers[0]), 1, 1);
canvas->scale(16, 16);
canvas->drawImage(redBorder.asImage(), 0, 0);
canvas->resetMatrix();
sk_sp<SkImage> image = redBorder.asImage();
for (auto constraint : { SkCanvas::kStrict_SrcRectConstraint,
SkCanvas::kFast_SrcRectConstraint } ) {
canvas->translate(80, 0);
canvas->drawImageRect(image.get(), SkRect::MakeLTRB(1, 1, 3, 3),
SkRect::MakeLTRB(16, 16, 48, 48),
SkSamplingOptions(SkFilterMode::kLinear), nullptr, constraint);
}
}
} // END FIDDLE