Skia Fiddle

Options

Width Height

check_box_outline_blank check_box Text Only [Use SkDebugf()]

check_box_outline_blank check_box sRGB

check_box_outline_blank check_box F16

check_box_outline_blank check_box Animation

check_box_outline_blank check_box Offscreen Render Target

Width Height Sample Count

check_box_outline_blank check_box Texturable

check_box_outline_blank check_box MipMap

This global is now defined:

GrBackendRenderTarget backEndRenderTarget;

GrBackendTexture backEndTextureRenderTarget;

Optional source image

check_box_outline_blank check_box MipMap

These globals are now defined:

SkBitmap source;
sk_sp<SkImage> image;
GrBackendTexture backEndTexture; // GPU Only.

Note:

Adding comments with SK_FOLD_START and SK_FOLD_END creates foldable code blocks.
These blocks will be folded by default and are useful for highlighting specific lines of code.
You can also use the keyboard shortcuts Ctrl+S and Ctrl+E in the code editor to set them.

xxxxxxxxxx
 
void draw(SkCanvas* canvas) {
    SkImageInfo imageInfo = SkImageInfo::MakeN32Premul(2, 2);
    SkBitmap bitmap;
    bitmap.setInfo(imageInfo);
    uint32_t pixels[4];
    bitmap.setPixels(pixels);
    for (int y = 0; y < 256; y += 2) {
        for (int x = 0; x < 256;  x += 2) {
            pixels[0] = SkColorSetRGB(x, y, x | y);
            pixels[1] = SkColorSetRGB(x ^ y, y, x);
            pixels[2] = SkColorSetRGB(x, x & y, y);
            pixels[3] = SkColorSetRGB((~x) & 0xFF, (~y) & 0xFF, x);
            canvas->writePixels(bitmap, x, y);
        }
    }
}