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Bitmap_swap.cpp File Reference
#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions

 REG_FIDDLE (Bitmap_swap, 256, 256, true, 0)
 

Function Documentation

◆ REG_FIDDLE()

REG_FIDDLE ( Bitmap_swap  ,
256  ,
256  ,
true  ,
 
)

Definition at line 4 of file Bitmap_swap.cpp.

4 {
5void draw(SkCanvas* canvas) {
6 auto debugster = [](const char* prefix, const SkBitmap& b) -> void {
7 const char* alphas[] = {"Unknown", "Opaque", "Premul", "Unpremul"};
8 const char* colors[] = {"Unknown", "Alpha_8", "RGB_565", "ARGB_4444", "RGBA_8888", "RGB_888x",
9 "BGRA_8888", "RGBA_1010102", "RGB_101010x", "Gray_8", "RGBA_F16Norm",
10 "RGBA_F16"};
11 SkDebugf("%s width:%d height:%d colorType:k%s_SkColorType alphaType:k%s_SkAlphaType\n",
12 prefix, b.width(), b.height(), colors[b.colorType()], alphas[b.alphaType()]);
13 };
14 SkBitmap one, two;
15 if (!one.tryAllocPixels(
17 return;
18 }
19 if (!two.tryAllocPixels(
21 return;
22 }
23 for (int index = 0; index < 2; ++index) {
24 debugster("one", one);
25 debugster("two", two);
26 one.swap(two);
27 }
28}
29} // END FIDDLE
@ kOpaque_SkAlphaType
pixel is opaque
Definition: SkAlphaType.h:28
@ kPremul_SkAlphaType
pixel components are premultiplied by alpha
Definition: SkAlphaType.h:29
@ kBGRA_8888_SkColorType
pixel with 8 bits for blue, green, red, alpha; in 32-bit word
Definition: SkColorType.h:26
@ kRGBA_8888_SkColorType
pixel with 8 bits for red, green, blue, alpha; in 32-bit word
Definition: SkColorType.h:24
void SK_SPI SkDebugf(const char format[],...) SK_PRINTF_LIKE(1
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition: aaclip.cpp:27
bool tryAllocPixels(const SkImageInfo &info, size_t rowBytes)
Definition: SkBitmap.cpp:271
void swap(SkBitmap &other)
Definition: SkBitmap.cpp:86
static bool b
PODArray< SkColor > colors
Definition: SkRecords.h:276
static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at)