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) {
    uint8_t pixels[][12] = { { 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00},
                             { 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00},
                             { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00},
                             { 0xFF, 0xFF, 0x00, 0xFF, 0xFF, 0x00, 0xFF, 0xFF},
                             { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
                             { 0x00, 0x00, 0xFF, 0x00, 0x00, 0xFF, 0x00, 0x00},
                             { 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00},
                             { 0x00, 0x00, 0xFF, 0x00, 0x00, 0xFF, 0x00, 0x00} };
    SkImageInfo imageInfo = SkImageInfo::MakeA8(8, 8);
    SkBitmap bitmap;
    bitmap.installPixels(imageInfo, (void*) pixels, sizeof(pixels[0]));
    SkPaint paint;
    paint.setColor(SK_ColorRED);
    canvas->drawImageRect(bitmap.asImage(), SkRect::MakeWH(8, 8), SkRect::MakeWH(32, 32),
                          SkSamplingOptions(), &paint, SkCanvas::kStrict_SrcRectConstraint);
    size_t offset = imageInfo.computeOffset(2, 3, sizeof(pixels[0]));
    pixels[0][offset] = 0x7F;
    offset = imageInfo.computeOffset(5, 3, sizeof(pixels[0]));
    pixels[0][offset] = 0x7F;
    bitmap.installPixels(imageInfo, (void*) pixels, sizeof(pixels[0]));
    canvas->drawImageRect(bitmap.asImage(), SkRect::MakeWH(8, 8), SkRect::MakeWH(128, 128),
                          SkSamplingOptions(), &paint, SkCanvas::kStrict_SrcRectConstraint);
}