static void Region_translate(JNIEnv* env, jobject region, jint x, jint y, jobject dst) {
SkRegion* rgn = GetSkRegion(env, region);
if (dst)
rgn->translate(x, y, GetSkRegion(env, dst));
else
rgn->translate(x, y);
}
void SkCanvasStack::onClipRegion(const SkRegion& deviceRgn, SkClipOp op) {
SkASSERT(fList.count() == fCanvasData.count());
for (int i = 0; i < fList.count(); ++i) {
SkRegion tempRegion;
deviceRgn.translate(-fCanvasData[i].origin.x(),
-fCanvasData[i].origin.y(), &tempRegion);
tempRegion.op(fCanvasData[i].requiredClip, SkRegion::kIntersect_Op);
fList[i]->clipRegion(tempRegion, op);
}
this->SkCanvas::onClipRegion(deviceRgn, op);
}
void drawRgnOped(SkCanvas* canvas, SkRegion::Op op, SkColor color)
{
SkRegion rgn;
this->build_rgn(&rgn, op);
{
SkRegion tmp, tmp2(rgn);
tmp = tmp2;
tmp.translate(5, -3);
{
char buffer[1000];
size_t size = tmp.flatten(NULL);
SkASSERT(size <= sizeof(buffer));
size_t size2 = tmp.flatten(buffer);
SkASSERT(size == size2);
SkRegion tmp3;
size2 = tmp3.unflatten(buffer);
SkASSERT(size == size2);
SkASSERT(tmp3 == tmp);
}
rgn.translate(20, 30, &tmp);
SkASSERT(rgn.isEmpty() || tmp != rgn);
tmp.translate(-20, -30);
SkASSERT(tmp == rgn);
}
this->drawOrig(canvas, true);
SkPaint paint;
paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24));
paint_rgn(canvas, rgn, paint);
paint.setStyle(SkPaint::kStroke_Style);
paint.setColor(color);
paint_rgn(canvas, rgn, paint);
}
void updateMC(const SkMatrix& totalMatrix, const SkRegion& totalClip,
const SkClipStack& clipStack, SkRegion* updateClip) {
int x = fDevice->getOrigin().x();
int y = fDevice->getOrigin().y();
int width = fDevice->width();
int height = fDevice->height();
if ((x | y) == 0) {
fMatrix = &totalMatrix;
fClip = totalClip;
} else {
fMatrixStorage = totalMatrix;
fMatrixStorage.postTranslate(SkIntToScalar(-x),
SkIntToScalar(-y));
fMatrix = &fMatrixStorage;
totalClip.translate(-x, -y, &fClip);
}
fClip.op(0, 0, width, height, SkRegion::kIntersect_Op);
// intersect clip, but don't translate it (yet)
if (updateClip) {
updateClip->op(x, y, x + width, y + height,
SkRegion::kDifference_Op);
}
fDevice->setMatrixClip(*fMatrix, fClip, clipStack);
#ifdef SK_DEBUG
if (!fClip.isEmpty()) {
SkIRect deviceR;
deviceR.set(0, 0, width, height);
SkASSERT(deviceR.contains(fClip.getBounds()));
}
#endif
// default is to assume no external matrix
fMVMatrix = NULL;
fExtMatrix = NULL;
}
DEF_TEST(CanvasState_test_complex_clips, reporter) {
const int WIDTH = 400;
const int HEIGHT = 400;
const int SPACER = 10;
SkIRect layerRect = SkIRect::MakeWH(WIDTH, HEIGHT / 4);
layerRect.inset(2*SPACER, 2*SPACER);
SkIRect clipRect = layerRect;
clipRect.fRight = clipRect.fLeft + (clipRect.width() / 2) - (2*SPACER);
clipRect.outset(SPACER, SPACER);
SkIRect regionBounds = clipRect;
regionBounds.offset(clipRect.width() + (2*SPACER), 0);
SkIRect regionInterior = regionBounds;
regionInterior.inset(SPACER*3, SPACER*3);
SkRegion clipRegion;
clipRegion.setRect(regionBounds);
clipRegion.op(regionInterior, SkRegion::kDifference_Op);
const SkRegion::Op clipOps[] = { SkRegion::kIntersect_Op,
SkRegion::kIntersect_Op,
SkRegion::kReplace_Op,
};
const SkCanvas::SaveLayerFlags flags[] = {
static_cast<SkCanvas::SaveLayerFlags>(SkCanvas::kDontClipToLayer_Legacy_SaveLayerFlag),
0,
static_cast<SkCanvas::SaveLayerFlags>(SkCanvas::kDontClipToLayer_Legacy_SaveLayerFlag),
};
REPORTER_ASSERT(reporter, sizeof(clipOps) == sizeof(flags));
bool (*drawFn)(SkCanvasState* state, int32_t l, int32_t t,
int32_t r, int32_t b, int32_t clipOp,
int32_t regionRects, int32_t* rectCoords);
OpenLibResult openLibResult(reporter);
if (openLibResult.handle() != nullptr) {
*(void**) (&drawFn) = dlsym(openLibResult.handle(),
"complex_clips_draw_from_canvas_state");
} else {
drawFn = complex_clips_draw_from_canvas_state;
}
REPORTER_ASSERT(reporter, drawFn);
if (!drawFn) {
return;
}
SkBitmap bitmaps[2];
for (int i = 0; i < 2; ++i) {
bitmaps[i].allocN32Pixels(WIDTH, HEIGHT);
SkCanvas canvas(bitmaps[i]);
canvas.drawColor(SK_ColorRED);
SkRegion localRegion = clipRegion;
SkPaint paint;
paint.setAlpha(128);
for (size_t j = 0; j < SK_ARRAY_COUNT(flags); ++j) {
SkRect layerBounds = SkRect::Make(layerRect);
canvas.saveLayer(SkCanvas::SaveLayerRec(&layerBounds, &paint, flags[j]));
if (i) {
SkCanvasState* state = SkCanvasStateUtils::CaptureCanvasState(&canvas);
REPORTER_ASSERT(reporter, state);
SkRegion::Iterator iter(localRegion);
SkTDArray<int32_t> rectCoords;
for (; !iter.done(); iter.next()) {
const SkIRect& rect = iter.rect();
*rectCoords.append() = rect.fLeft;
*rectCoords.append() = rect.fTop;
*rectCoords.append() = rect.fRight;
*rectCoords.append() = rect.fBottom;
}
bool success = drawFn(state, clipRect.fLeft, clipRect.fTop,
clipRect.fRight, clipRect.fBottom, clipOps[j],
rectCoords.count() / 4, rectCoords.begin());
REPORTER_ASSERT(reporter, success);
SkCanvasStateUtils::ReleaseCanvasState(state);
} else {
complex_clips_draw(&canvas, clipRect.fLeft, clipRect.fTop,
clipRect.fRight, clipRect.fBottom, clipOps[j],
localRegion);
}
canvas.restore();
// translate the canvas and region for the next iteration
canvas.translate(0, SkIntToScalar(2*(layerRect.height() + (SPACER))));
localRegion.translate(0, 2*(layerRect.height() + SPACER));
}
}
// now we memcmp the two bitmaps
REPORTER_ASSERT(reporter, bitmaps[0].getSize() == bitmaps[1].getSize());
REPORTER_ASSERT(reporter, !memcmp(bitmaps[0].getPixels(),
bitmaps[1].getPixels(),
bitmaps[0].getSize()));
}
static void test_complex_clips(skiatest::Reporter* reporter) {
#ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG
const int WIDTH = 400;
const int HEIGHT = 400;
const int SPACER = 10;
SkIRect layerRect = SkIRect::MakeWH(WIDTH, HEIGHT / 4);
layerRect.inset(2*SPACER, 2*SPACER);
SkIRect clipRect = layerRect;
clipRect.fRight = clipRect.fLeft + (clipRect.width() / 2) - (2*SPACER);
clipRect.outset(SPACER, SPACER);
SkIRect regionBounds = clipRect;
regionBounds.offset(clipRect.width() + (2*SPACER), 0);
SkIRect regionInterior = regionBounds;
regionInterior.inset(SPACER*3, SPACER*3);
SkRegion clipRegion;
clipRegion.setRect(regionBounds);
clipRegion.op(regionInterior, SkRegion::kDifference_Op);
const SkRegion::Op clipOps[] = { SkRegion::kIntersect_Op,
SkRegion::kIntersect_Op,
SkRegion::kReplace_Op,
};
const SkCanvas::SaveFlags flags[] = { SkCanvas::kARGB_NoClipLayer_SaveFlag,
SkCanvas::kARGB_ClipLayer_SaveFlag,
SkCanvas::kARGB_NoClipLayer_SaveFlag,
};
REPORTER_ASSERT(reporter, sizeof(clipOps) == sizeof(flags));
const int layerCombinations = sizeof(flags) / sizeof(SkCanvas::SaveFlags);
SkBitmap bitmaps[2];
for (int i = 0; i < 2; ++i) {
bitmaps[i].allocN32Pixels(WIDTH, HEIGHT);
SkCanvas canvas(bitmaps[i]);
canvas.drawColor(SK_ColorRED);
SkRegion localRegion = clipRegion;
for (int j = 0; j < layerCombinations; ++j) {
SkRect layerBounds = SkRect::Make(layerRect);
canvas.saveLayerAlpha(&layerBounds, 128, flags[j]);
SkCanvasState* state = NULL;
SkCanvas* tmpCanvas = NULL;
if (i) {
state = SkCanvasStateUtils::CaptureCanvasState(&canvas);
REPORTER_ASSERT(reporter, state);
tmpCanvas = SkCanvasStateUtils::CreateFromCanvasState(state);
REPORTER_ASSERT(reporter, tmpCanvas);
} else {
tmpCanvas = SkRef(&canvas);
}
tmpCanvas->save();
tmpCanvas->clipRect(SkRect::Make(clipRect), clipOps[j]);
tmpCanvas->drawColor(SK_ColorBLUE);
tmpCanvas->restore();
tmpCanvas->clipRegion(localRegion, clipOps[j]);
tmpCanvas->drawColor(SK_ColorBLUE);
tmpCanvas->unref();
SkCanvasStateUtils::ReleaseCanvasState(state);
canvas.restore();
// translate the canvas and region for the next iteration
canvas.translate(0, SkIntToScalar(2*(layerRect.height() + (SPACER))));
localRegion.translate(0, 2*(layerRect.height() + SPACER));
}
}
// now we memcmp the two bitmaps
REPORTER_ASSERT(reporter, bitmaps[0].getSize() == bitmaps[1].getSize());
REPORTER_ASSERT(reporter, !memcmp(bitmaps[0].getPixels(),
bitmaps[1].getPixels(),
bitmaps[0].getSize()));
#endif
}
void translateClip() {
if (fX | fY) {
fClip.translate(fX, fY);
}
}
