Flutter Engine
The Flutter Engine
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Bitmap_allocPixels.cpp File Reference
#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions

 REG_FIDDLE (Bitmap_allocPixels, 256, 256, false, 3)
 

Function Documentation

◆ REG_FIDDLE()

REG_FIDDLE ( Bitmap_allocPixels  ,
256  ,
256  ,
false  ,
 
)

Definition at line 4 of file Bitmap_allocPixels.cpp.

4 {
5void draw(SkCanvas* canvas) {
8 bitmap.allocPixels(info, info.width() * info.bytesPerPixel() + 64);
9 SkCanvas offscreen(bitmap);
10 offscreen.scale(.5f, .5f);
11 for (int y : { 0, 64, 128, 192 } ) {
12 offscreen.drawImage(source.asImage(), 0, -y);
13 canvas->drawImage(bitmap.asImage(), 0, y);
14 }
15}
16} // END FIDDLE
static void info(const char *fmt,...) SK_PRINTF_LIKE(1
Definition: DM.cpp:213
@ 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
sk_sp< SkImage > asImage() const
Definition: SkBitmap.cpp:645
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition: SkCanvas.h:1528
SkBitmap source
Definition: examples.cpp:28
double y
Definition: bitmap.py:1
static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at)