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

Go to the source code of this file.

Functions

 REG_FIDDLE (ImageInfo_isOpaque, 256, 256, true, 0)
 

Function Documentation

◆ REG_FIDDLE()

REG_FIDDLE ( ImageInfo_isOpaque  ,
256  ,
256  ,
true  ,
 
)

Definition at line 4 of file ImageInfo_isOpaque.cpp.

4 {
5void draw(SkCanvas* canvas) {
6 const int height = 2;
7 const int width = 2;
9 SkImageInfo imageInfo = SkImageInfo::Make(width, height, kN32_SkColorType, kPremul_SkAlphaType);
10 bitmap.setInfo(imageInfo);
11 for (int index = 0; index < 2; ++index) {
12 bitmap.allocPixels();
13 bitmap.eraseColor(0x00000000);
14 SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
15 bitmap.eraseColor(0xFFFFFFFF);
16 SkDebugf("isOpaque: %s\n", imageInfo.isOpaque() ? "true" : "false");
17 imageInfo = imageInfo.makeAlphaType(kOpaque_SkAlphaType);
18 bitmap.setInfo(imageInfo);
19 }
20}
21} // END FIDDLE
@ kOpaque_SkAlphaType
pixel is opaque
Definition: SkAlphaType.h:28
@ kPremul_SkAlphaType
pixel components are premultiplied by alpha
Definition: SkAlphaType.h:29
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
Definition: bitmap.py:1
int32_t height
int32_t width
bool isOpaque() const
Definition: SkImageInfo.h:415
SkImageInfo makeAlphaType(SkAlphaType newAlphaType) const
Definition: SkImageInfo.h:466
static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at)