Пример #1
0
// Fold the clipRect into the drawBitmapRectToRect's src and dest rects
static void apply_8(SkDebugCanvas* canvas, int curCommand) {
    SkClipRectCommand* clip =
        (SkClipRectCommand*) canvas->getDrawCommandAt(curCommand+1);
    SkDrawBitmapRectCommand* dbmr =
        (SkDrawBitmapRectCommand*) canvas->getDrawCommandAt(curCommand+2);

    SkScalar newSrcLeft, newSrcTop;

    if (NULL != dbmr->srcRect()) {
        newSrcLeft = dbmr->srcRect()->fLeft + clip->rect().fLeft - dbmr->dstRect().fLeft;
        newSrcTop  = dbmr->srcRect()->fTop + clip->rect().fTop - dbmr->dstRect().fTop;
    } else {
        newSrcLeft = clip->rect().fLeft - dbmr->dstRect().fLeft;
        newSrcTop  = clip->rect().fTop - dbmr->dstRect().fTop;
    }

    SkRect newSrc = SkRect::MakeXYWH(newSrcLeft, newSrcTop,
                                     clip->rect().width(), clip->rect().height());

    dbmr->setSrcRect(newSrc);
    dbmr->setDstRect(clip->rect());

    // remove everything except the drawbitmaprect
    canvas->deleteDrawCommandAt(curCommand+3);
    canvas->deleteDrawCommandAt(curCommand+1);
    canvas->deleteDrawCommandAt(curCommand);
}
Пример #2
0
// Reduce to a single drawBitmapRectToRect call by folding the clipRect's into
// the src and dst Rects and the saveLayer paints into the drawBitmapRectToRect's
// paint.
static void apply_7(SkDebugCanvas* canvas, int curCommand) {
    SkSaveLayerCommand* saveLayer0 =
        (SkSaveLayerCommand*) canvas->getDrawCommandAt(curCommand+2);
    SkSaveLayerCommand* saveLayer1 =
        (SkSaveLayerCommand*) canvas->getDrawCommandAt(curCommand+5);
    SkClipRectCommand* clip2 =
        (SkClipRectCommand*) canvas->getDrawCommandAt(curCommand+7);
    SkDrawBitmapRectCommand* dbmr =
        (SkDrawBitmapRectCommand*) canvas->getDrawCommandAt(curCommand+8);

    SkScalar newSrcLeft = dbmr->srcRect()->fLeft + clip2->rect().fLeft - dbmr->dstRect().fLeft;
    SkScalar newSrcTop = dbmr->srcRect()->fTop + clip2->rect().fTop - dbmr->dstRect().fTop;

    SkRect newSrc = SkRect::MakeXYWH(newSrcLeft, newSrcTop,
                                     clip2->rect().width(), clip2->rect().height());

    dbmr->setSrcRect(newSrc);
    dbmr->setDstRect(clip2->rect());

    SkColor color = 0xFF000000;
    int a0, a1;

    const SkPaint* saveLayerPaint0 = saveLayer0->paint();
    if (NULL != saveLayerPaint0) {
        color = saveLayerPaint0->getColor();
        a0 = SkColorGetA(color);
    } else {
        a0 = 0xFF;
    }

    const SkPaint* saveLayerPaint1 = saveLayer1->paint();
    if (NULL != saveLayerPaint1) {
        color = saveLayerPaint1->getColor();
        a1 = SkColorGetA(color);
    } else {
        a1 = 0xFF;
    }

    int newA = SkMulDiv255Round(a0, a1);
    SkASSERT(newA <= 0xFF);

    SkPaint* dbmrPaint = dbmr->paint();

    if (NULL != dbmrPaint) {
        SkColor newColor = SkColorSetA(dbmrPaint->getColor(), newA);
        dbmrPaint->setColor(newColor);
    } else {
        SkColor newColor = SkColorSetA(color, newA);

        SkPaint newPaint;
        newPaint.setColor(newColor);
        dbmr->setPaint(newPaint);
    }

    // remove everything except the drawbitmaprect
    canvas->deleteDrawCommandAt(curCommand+13);   // restore
    canvas->deleteDrawCommandAt(curCommand+12);   // restore
    canvas->deleteDrawCommandAt(curCommand+11);   // restore
    canvas->deleteDrawCommandAt(curCommand+10);   // restore
    canvas->deleteDrawCommandAt(curCommand+9);    // restore
    canvas->deleteDrawCommandAt(curCommand+7);    // clipRect
    canvas->deleteDrawCommandAt(curCommand+6);    // save
    canvas->deleteDrawCommandAt(curCommand+5);    // saveLayer
    canvas->deleteDrawCommandAt(curCommand+4);    // clipRect
    canvas->deleteDrawCommandAt(curCommand+3);    // save
    canvas->deleteDrawCommandAt(curCommand+2);    // saveLayer
    canvas->deleteDrawCommandAt(curCommand+1);    // clipRect
    canvas->deleteDrawCommandAt(curCommand);      // save
}