Bitmap_readPixels_3.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Bitmap_readPixels_3, 256, 128, false, 3)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Bitmap_readPixels_3	,
		256	,
		128	,
		false	,
		3
	)

Definition at line 5 of file Bitmap_readPixels_3.cpp.

                                                    {
void draw(SkCanvas* canvas) {
    std::vector<int32_t> srcPixels;
    srcPixels.resize(source.height() * source.width() * 8);
    for (int i = 0;  i < 2; ++i) {
    SkPixmap pixmap(SkImageInfo::Make(source.width() * 2, source.height(),
                    i ? kRGBA_8888_SkColorType : kBGRA_8888_SkColorType, kPremul_SkAlphaType),
                    &srcPixels.front() + i * source.width(), source.rowBytes() * 2);
        source.readPixels(pixmap);
    }
    canvas->scale(.25f, .25f);
    SkBitmap bitmap;
    bitmap.installPixels(SkImageInfo::MakeN32Premul(source.width() * 2, source.height()),
                         &srcPixels.front(), source.rowBytes() * 2);
    canvas->drawImage(bitmap.asImage(), 0, 0);
}
}  // END FIDDLE