skia2/docs/examples/ImageInfo_MakeA8.cpp
Mike Reed b339d051e0 pass sampling to drawImage
Bug: skia:7650
Change-Id: I0fa4c5f3fb350705f78ee91f4bdfb4edd83d0ed9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/361360
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-28 17:56:52 +00:00

27 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=547388991687b8e10d482d8b1c82777d
REG_FIDDLE(ImageInfo_MakeA8, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
uint8_t pixels[][8] = { { 0x00, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00},
{ 0x00, 0x7f, 0xff, 0x3f, 0x3f, 0x7f, 0x3f, 0x00},
{ 0x3f, 0xff, 0x7f, 0x00, 0x7f, 0xff, 0x7f, 0x00},
{ 0x00, 0x3f, 0x00, 0x00, 0x3f, 0x7f, 0x3f, 0x00},
{ 0x3f, 0x7f, 0x7f, 0x3f, 0x00, 0x00, 0x00, 0x00},
{ 0x7f, 0xff, 0xff, 0x7f, 0x00, 0x3f, 0x7f, 0x3f},
{ 0x7f, 0xff, 0xff, 0x7f, 0x00, 0x7f, 0xff, 0x7f},
{ 0x3f, 0x7f, 0x7f, 0x3f, 0x00, 0x3f, 0x7f, 0x3f} };
SkBitmap bitmap;
bitmap.installPixels(SkImageInfo::MakeA8(8, 8),
(void*) pixels, sizeof(pixels[0]));
SkPaint paint;
canvas->scale(4, 4);
for (auto color : { SK_ColorRED, SK_ColorBLUE, 0xFF007F00} ) {
paint.setColor(color);
canvas->drawImage(bitmap.asImage(), 0, 0, SkSamplingOptions(), &paint);
canvas->translate(12, 0);
}
}
} // END FIDDLE