Canvas_writePixels.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Canvas_writePixels, 256, 256, false, 0)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Canvas_writePixels	,
		256	,
		256	,
		false	,
		0
	)

Definition at line 4 of file Canvas_writePixels.cpp.

                                                   {
void draw(SkCanvas* canvas) {
    SkImageInfo imageInfo = SkImageInfo::MakeN32(256, 1, kPremul_SkAlphaType);
    for (int y = 0; y < 256; ++y) {
        uint32_t pixels[256];
        for (int x = 0; x < 256; ++x) {
            pixels[x] = SkColorSetARGB(x, (x + y) % 256, x, (x - y) & 0xFF);
        }
        canvas->writePixels(imageInfo, &pixels, sizeof(pixels), 0, y);
    }
}
}  // END FIDDLE