Options
These globals are now defined:
double duration; // The requested duration of the animation. double frame; // A value in [0, 1] of where we are in the animation.
This global is now defined:
GrBackendRenderTarget backEndRenderTarget;
GrBackendTexture backEndTextureRenderTarget;
Optional source image
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.
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
14
void draw(SkCanvas* canvas) {
const float width = image->width();
const float height = image->height();
const SkPoint src[] = {{ 0, 0}, {width, 0}, {width * (float)frame, height * (float)frame}, { 0, height}};
const SkPoint dst[] = { {0, 0}, {width, 0}, {width, height}, {0, height} };
SkMatrix matrix;
matrix.setPolyToPoly(src, dst, 4);
SkAutoCanvasRestore acr(canvas, true);
canvas->concat(matrix);
canvas->drawImage(image, 0, 0);
}