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Skia Fiddle
Skia Version:
52a6a4
void draw(SkCanvas* canvas) { std::vector<int32_t> srcPixels; srcPixels.resize(source.height() * source.rowBytes()); for (int y = 0; y < 4; ++y) { for (int x = 0; x < 4; ++x) { SkPixmap pixmap(SkImageInfo::MakeN32Premul(source.width() / 4, source.height() / 4), &srcPixels.front() + x * source.height() * source.width() / 4 + y * source.width() / 4, source.rowBytes()); source.readPixels(pixmap, x * source.width() / 4, y * source.height() / 4); } } canvas->scale(.5f, .5f); SkBitmap bitmap; bitmap.installPixels(SkImageInfo::MakeN32Premul(source.width(), source.height()), &srcPixels.front(), source.rowBytes()); canvas->drawBitmap(bitmap, 0, 0); }
Skia API Documentation