Flutter Engine
The Flutter Engine
Bitmap_allocPixelsFlags.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.
4REG_FIDDLE(Bitmap_allocPixelsFlags, 256, 128, false, 0) {
5void draw(SkCanvas* canvas) {
7 bitmap.allocPixelsFlags(SkImageInfo::MakeN32(44, 16, kPremul_SkAlphaType),
9 SkCanvas offscreen(bitmap);
11 SkFont font = SkFont(fontMgr->matchFamilyStyle(nullptr, {}));
12 offscreen.drawString("!@#$%", 0, 12, font, paint);
13 canvas->scale(6, 6);
14 canvas->drawImage(bitmap.asImage(), 0, 0);
15 canvas->drawImage(bitmap.asImage(), 8, 8);
16}
17} // END FIDDLE
REG_FIDDLE(Bitmap_allocPixelsFlags, 256, 128, false, 0)
@ kPremul_SkAlphaType
pixel components are premultiplied by alpha
Definition: SkAlphaType.h:29
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition: aaclip.cpp:27
@ kZeroPixels_AllocFlag
zero pixel memory. No effect. This is the default.
Definition: SkBitmap.h:435
void scale(SkScalar sx, SkScalar sy)
Definition: SkCanvas.cpp:1289
void drawString(const char str[], SkScalar x, SkScalar y, const SkFont &font, const SkPaint &paint)
Definition: SkCanvas.h:1803
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition: SkCanvas.h:1528
sk_sp< SkTypeface > matchFamilyStyle(const char familyName[], const SkFontStyle &) const
Definition: SkFontMgr.cpp:109
Definition: SkFont.h:35
const Paint & paint
Definition: color_source.cc:38
sk_sp< SkFontMgr > fontMgr
Definition: examples.cpp:32
Definition: bitmap.py:1
font
Font Metadata and Metrics.
static SkImageInfo MakeN32(int width, int height, SkAlphaType at)