void SkDeferredCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
if (fDeferredDrawing && isFullFrame(&rect, &paint) &&
isPaintOpaque(&paint)) {
getDeferredDevice()->contentsCleared();
}
drawingCanvas()->drawRect(rect, paint);
}
void SkDeferredCanvas::drawPaint(const SkPaint& paint)
{
if (fDeferredDrawing && isFullFrame(NULL, &paint) && isPaintOpaque(paint)) {
getDeferredDevice()->purgePending();
}
drawingCanvas()->drawPaint(paint);
}
bool isPaintOpaque(const SkPaint* paint, const SkBitmap* bmpReplacesShader) {
SkPaintBitmapOpacity contentType;
if(!bmpReplacesShader)
contentType = kNoBitmap_SkPaintBitmapOpacity;
else if(bmpReplacesShader->isOpaque())
contentType = kOpaque_SkPaintBitmapOpacity;
else
contentType = kUnknown_SkPaintBitmapOpacity;
return isPaintOpaque(paint, contentType);
}
void SkDeferredCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar left,
SkScalar top, const SkPaint* paint) {
SkRect bitmapRect = SkRect::MakeXYWH(left, top,
SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height()));
if (fDeferredDrawing &&
isFullFrame(&bitmapRect, paint) &&
isPaintOpaque(paint, &bitmap)) {
getDeferredDevice()->contentsCleared();
}
drawingCanvas()->drawBitmap(bitmap, left, top, paint);
flushIfNeeded(bitmap);
}
void SkDeferredCanvas::drawBitmapRect(const SkBitmap& bitmap,
const SkIRect* src,
const SkRect& dst,
const SkPaint* paint) {
if (fDeferredDrawing &&
isFullFrame(&dst, paint) &&
isPaintOpaque(paint, &bitmap)) {
getDeferredDevice()->contentsCleared();
}
drawingCanvas()->drawBitmapRect(bitmap, src,
dst, paint);
flushIfNeeded(bitmap);
}
void SkDeferredCanvas::drawSprite(const SkBitmap& bitmap, int left, int top,
const SkPaint* paint)
{
SkRect bitmapRect = SkRect::MakeXYWH(left, top, bitmap.width(),
bitmap.height());
if (fDeferredDrawing &&
isFullFrame(&bitmapRect, paint) &&
isPaintOpaque(*paint, &bitmap)) {
getDeferredDevice()->purgePending();
}
drawingCanvas()->drawSprite(bitmap, left, top,
paint);
flushIfNeeded(bitmap);
}
bool isPaintOpaque(const SkPaint* paint, const SkImage* image) {
return isPaintOpaque(paint, image->isOpaque() ?
kOpaque_SkPaintBitmapOpacity : kUnknown_SkPaintBitmapOpacity);
}
