Flutter Engine
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Bitmap_installPixels_3.cpp
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1// Copyright 2019 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
4// HASH=6e2a8c9358b34aebd2ec586815fe9d3a
5REG_FIDDLE(Bitmap_installPixels_3, 256, 64, false, 0) {
6void draw(SkCanvas* canvas) {
7 uint8_t storage[][5] = {{ 0xCA, 0xDA, 0xCA, 0xC9, 0xA3 },
8 { 0xAC, 0xA8, 0x89, 0x47, 0x87 },
9 { 0x4B, 0x25, 0x25, 0x25, 0x46 },
10 { 0x90, 0x81, 0x25, 0x41, 0x33 },
11 { 0x75, 0x55, 0x44, 0x20, 0x00 }};
13 SkPixmap pixmap(imageInfo, storage[0], sizeof(storage) / 5);
15 bitmap.installPixels(pixmap);
16 canvas->scale(10, 10);
17 canvas->drawImage(bitmap.asImage(), 0, 0);
18 *pixmap.writable_addr8(2, 2) = 0xFF;
19 bitmap.installPixels(pixmap);
20 canvas->drawImage(bitmap.asImage(), 10, 0);
21}
22} // END FIDDLE
@ kOpaque_SkAlphaType
pixel is opaque
Definition SkAlphaType.h:28
@ kGray_8_SkColorType
pixel with grayscale level in 8-bit byte
Definition SkColorType.h:35
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition aaclip.cpp:27
void scale(SkScalar sx, SkScalar sy)
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition SkCanvas.h:1528
uint8_t * writable_addr8(int x, int y) const
Definition SkPixmap.h:508
#define REG_FIDDLE(NAME, W, H, TEXT, I)
Definition examples.h:60
static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at)