void anchor_handle_renderer::draw_anchor (SkCanvas &canvas, const SkRect &rect, SkPaint &paint) const
{
switch (m_node_type)
{
case handle_type::DIAMOND:
{
canvas.save ();
canvas.translate (rect.centerX (), rect.centerY ());
canvas.rotate (45);
SkRect moved_rect = rect;
moved_rect.offset (-rect.centerX (), -rect.centerY ());
paint.setAntiAlias (true);
canvas.drawRect (moved_rect, paint);
canvas.restore ();
break;
}
case handle_type::SQUARE:
canvas.drawRect (rect, paint);
break;
case handle_type::CIRCLE:
canvas.drawOval (rect, paint);
break;
case handle_type::DOUBLE_HEADED_ARROW:
case handle_type::ROTATE_ARROW:
SkPath path = qt2skia::path (*m_paths.at (m_node_type));
SkMatrix trans;
trans.setIdentity ();
trans.postRotate (m_rotation_angle, 32, 32); // TODO: change all these to use info from path_storage (bounding box and center (possibly should be made 0))
trans.postConcat (qt2skia::matrix (geom::rect2rect (QRectF (0, 0, 64, 64), qt2skia::rect (rect))));
path.transform (trans);
paint.setAntiAlias (true);
canvas.drawPath (path, paint);
break;
}
}
void SkPDFDevice::drawBitmap(const SkDraw&, const SkBitmap& bitmap,
const SkIRect* srcRect,
const SkMatrix& matrix, const SkPaint& paint) {
SkMatrix transform = matrix;
transform.postConcat(fGraphicStack[fGraphicStackIndex].fTransform);
internalDrawBitmap(transform, bitmap, srcRect, paint);
}
void SkPDFDevice::internalDrawBitmap(const SkMatrix& matrix,
const SkBitmap& bitmap,
const SkIRect* srcRect,
const SkPaint& paint) {
SkIRect subset = SkIRect::MakeWH(bitmap.width(), bitmap.height());
if (srcRect && !subset.intersect(*srcRect))
return;
SkPDFImage* image = SkPDFImage::CreateImage(bitmap, subset, paint);
if (!image)
return;
SkMatrix scaled;
// Adjust for origin flip.
scaled.setScale(1, -1);
scaled.postTranslate(0, 1);
// Scale the image up from 1x1 to WxH.
scaled.postScale(SkIntToScalar(subset.width()),
SkIntToScalar(subset.height()));
scaled.postConcat(matrix);
SkMatrix curTransform = setTransform(scaled);
updateGSFromPaint(paint, false);
fXObjectResources.push(image); // Transfer reference.
fContent.writeText("/X");
fContent.writeDecAsText(fXObjectResources.count() - 1);
fContent.writeText(" Do\n");
setTransform(curTransform);
}
bool LayerAndroid::drawCanvas(SkCanvas* canvas, bool drawChildren, PaintStyle style)
{
if (!m_visible)
return false;
bool askScreenUpdate = false;
{
SkAutoCanvasRestore acr(canvas, true);
SkRect r;
r.set(m_clippingRect.x(), m_clippingRect.y(),
m_clippingRect.x() + m_clippingRect.width(),
m_clippingRect.y() + m_clippingRect.height());
canvas->clipRect(r);
SkMatrix matrix;
GLUtils::toSkMatrix(matrix, m_drawTransform);
SkMatrix canvasMatrix = canvas->getTotalMatrix();
matrix.postConcat(canvasMatrix);
canvas->setMatrix(matrix);
onDraw(canvas, m_drawOpacity, 0, style);
}
if (!drawChildren)
return false;
// When the layer is dirty, the UI thread should be notified to redraw.
askScreenUpdate |= drawChildrenCanvas(canvas, style);
return askScreenUpdate;
}
bool Surface::paint(SkCanvas* canvas)
{
if (singleLayer()) {
getFirstLayer()->contentDraw(canvas, Layer::UnmergedLayers);
// TODO: double buffer by disabling SurfaceCollection swaps and position
// updates until painting complete
// In single surface mode, draw layer content onto the base layer
if (isBase()
&& getFirstLayer()->countChildren()
&& getFirstLayer()->state()->isSingleSurfaceRenderingMode()) {
for (int i = 0; i < getFirstLayer()->countChildren(); i++)
getFirstLayer()->getChild(i)->drawCanvas(canvas, true, Layer::FlattenedLayers);
}
} else {
SkAutoCanvasRestore acr(canvas, true);
SkMatrix matrix;
GLUtils::toSkMatrix(matrix, m_drawTransform);
SkMatrix inverse;
inverse.reset();
matrix.invert(&inverse);
SkMatrix canvasMatrix = canvas->getTotalMatrix();
inverse.postConcat(canvasMatrix);
canvas->setMatrix(inverse);
for (unsigned int i=0; i<m_layers.size(); i++)
m_layers[i]->drawCanvas(canvas, false, Layer::MergedLayers);
}
return true;
}
DEF_TEST(RecordDraw_SetMatrixClobber, r) {
// Set up an SkRecord that just scales by 2x,3x.
SkRecord scaleRecord;
SkRecorder scaleCanvas(&scaleRecord, W, H);
SkMatrix scale;
scale.setScale(2, 3);
scaleCanvas.setMatrix(scale);
// Set up an SkRecord with an initial +20, +20 translate.
SkRecord translateRecord;
SkRecorder translateCanvas(&translateRecord, W, H);
SkMatrix translate;
translate.setTranslate(20, 20);
translateCanvas.setMatrix(translate);
SkRecordDraw(scaleRecord, &translateCanvas, nullptr, nullptr, 0, nullptr/*bbh*/, nullptr/*callback*/);
REPORTER_ASSERT(r, 4 == translateRecord.count());
assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
assert_type<SkRecords::Save> (r, translateRecord, 1);
assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
assert_type<SkRecords::Restore> (r, translateRecord, 3);
// When we look at translateRecord now, it should have its first +20,+20 translate,
// then a 2x,3x scale that's been concatted with that +20,+20 translate.
const SkRecords::SetMatrix* setMatrix;
setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
REPORTER_ASSERT(r, setMatrix->matrix == translate);
setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
SkMatrix expected = scale;
expected.postConcat(translate);
REPORTER_ASSERT(r, setMatrix->matrix == expected);
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
paint.setAntiAlias(fAA);
paint.setBlendMode(fMode);
SkColor color = start_color(fColorType);
int w = this->getSize().x();
int h = this->getSize().y();
static const SkScalar kRectW = 25.1f;
static const SkScalar kRectH = 25.9f;
if (fColorType == kShaderOpaque_ColorType) {
// The only requirement for the shader is that it requires local coordinates
SkPoint pts[2] = { {0.0f, 0.0f}, {kRectW, kRectH} };
SkColor colors[] = { color, SK_ColorBLUE };
paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
SkTileMode::kClamp));
}
SkMatrix rotate;
// This value was chosen so that we frequently hit the axis-aligned case.
rotate.setRotate(30.f, kRectW / 2, kRectH / 2);
SkMatrix m = rotate;
SkScalar tx = 0, ty = 0;
if (fPerspective) {
// Apply some fixed perspective to change how ops may draw the rects
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspX(1e-4f);
perspective.setPerspY(1e-3f);
perspective.setSkewX(0.1f);
canvas->concat(perspective);
}
for (int i = 0; i < loops; ++i) {
canvas->save();
canvas->translate(tx, ty);
canvas->concat(m);
paint.setColor(color);
color = advance_color(color, fColorType, i);
canvas->drawRect(SkRect::MakeWH(kRectW, kRectH), paint);
canvas->restore();
tx += kRectW + 2;
if (tx > w) {
tx = 0;
ty += kRectH + 2;
if (ty > h) {
ty = 0;
}
}
m.postConcat(rotate);
}
}
void Matrix::NativePostConcat(
/* [in] */ Int64 nObj,
/* [in] */ Int64 nOther)
{
SkMatrix* matrix = reinterpret_cast<SkMatrix*>(nObj);
SkMatrix* other = reinterpret_cast<SkMatrix*>(nOther);
matrix->postConcat(*other);
}
const GrFragmentProcessor* SkImageShader::asFragmentProcessor(GrContext* context,
const SkMatrix& viewM,
const SkMatrix* localMatrix,
SkFilterQuality filterQuality,
GrProcessorDataManager* mgr) const {
SkMatrix matrix;
matrix.setIDiv(fImage->width(), fImage->height());
SkMatrix lmInverse;
if (!this->getLocalMatrix().invert(&lmInverse)) {
return nullptr;
}
if (localMatrix) {
SkMatrix inv;
if (!localMatrix->invert(&inv)) {
return nullptr;
}
lmInverse.postConcat(inv);
}
matrix.preConcat(lmInverse);
SkShader::TileMode tm[] = { fTileModeX, fTileModeY };
// Must set wrap and filter on the sampler before requesting a texture. In two places below
// we check the matrix scale factors to determine how to interpret the filter quality setting.
// This completely ignores the complexity of the drawVertices case where explicit local coords
// are provided by the caller.
bool doBicubic;
GrTextureParams::FilterMode textureFilterMode =
GrSkFilterQualityToGrFilterMode(filterQuality, viewM, this->getLocalMatrix(), &doBicubic);
GrTextureParams params(tm, textureFilterMode);
SkImageUsageType usageType;
if (kClamp_TileMode == fTileModeX && kClamp_TileMode == fTileModeY) {
usageType = kUntiled_SkImageUsageType;
} else if (GrTextureParams::kNone_FilterMode == textureFilterMode) {
usageType = kTiled_Unfiltered_SkImageUsageType;
} else {
usageType = kTiled_Filtered_SkImageUsageType;
}
SkAutoTUnref<GrTexture> texture(as_IB(fImage)->asTextureRef(context, usageType));
if (!texture) {
return nullptr;
}
SkAutoTUnref<GrFragmentProcessor> inner;
if (doBicubic) {
inner.reset(GrBicubicEffect::Create(mgr, texture, matrix, tm));
} else {
inner.reset(GrSimpleTextureEffect::Create(mgr, texture, matrix, params));
}
if (GrPixelConfigIsAlphaOnly(texture->config())) {
return SkRef(inner.get());
}
return GrFragmentProcessor::MulOuputByInputAlpha(inner);
}
bool SkMatrixImageFilter::onFilterImage(Proxy* proxy,
const SkBitmap& source,
const Context& ctx,
SkBitmap* result,
SkIPoint* offset) const {
SkBitmap src = source;
SkIPoint srcOffset = SkIPoint::Make(0, 0);
if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctx, &src, &srcOffset)) {
return false;
}
SkRect dstRect;
SkIRect srcBounds, dstBounds;
src.getBounds(&srcBounds);
srcBounds.offset(srcOffset);
SkRect srcRect = SkRect::Make(srcBounds);
SkMatrix matrix;
if (!ctx.ctm().invert(&matrix)) {
return false;
}
matrix.postConcat(fTransform);
matrix.postConcat(ctx.ctm());
matrix.mapRect(&dstRect, srcRect);
dstRect.roundOut(&dstBounds);
SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(dstBounds.width(), dstBounds.height()));
if (NULL == device.get()) {
return false;
}
SkCanvas canvas(device.get());
canvas.translate(-SkIntToScalar(dstBounds.x()), -SkIntToScalar(dstBounds.y()));
canvas.concat(matrix);
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
paint.setFilterLevel(fFilterLevel);
canvas.drawBitmap(src, srcRect.x(), srcRect.y(), &paint);
*result = device.get()->accessBitmap(false);
offset->fX = dstBounds.fLeft;
offset->fY = dstBounds.fTop;
return true;
}
bool SkBitmapProcShader::asFragmentProcessor(GrContext* context, const SkPaint& paint,
const SkMatrix& viewM,
const SkMatrix* localMatrix, GrColor* paintColor,
GrProcessorDataManager* procDataManager,
GrFragmentProcessor** fp) const {
SkMatrix matrix;
matrix.setIDiv(fRawBitmap.width(), fRawBitmap.height());
SkMatrix lmInverse;
if (!this->getLocalMatrix().invert(&lmInverse)) {
return false;
}
if (localMatrix) {
SkMatrix inv;
if (!localMatrix->invert(&inv)) {
return false;
}
lmInverse.postConcat(inv);
}
matrix.preConcat(lmInverse);
SkShader::TileMode tm[] = {
(TileMode)fTileModeX,
(TileMode)fTileModeY,
};
// Must set wrap and filter on the sampler before requesting a texture. In two places below
// we check the matrix scale factors to determine how to interpret the filter quality setting.
// This completely ignores the complexity of the drawVertices case where explicit local coords
// are provided by the caller.
bool doBicubic;
GrTextureParams::FilterMode textureFilterMode =
GrSkFilterQualityToGrFilterMode(paint.getFilterQuality(), viewM, this->getLocalMatrix(),
&doBicubic);
GrTextureParams params(tm, textureFilterMode);
SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, fRawBitmap, ¶ms));
if (!texture) {
SkErrorInternals::SetError( kInternalError_SkError,
"Couldn't convert bitmap to texture.");
return false;
}
*paintColor = (kAlpha_8_SkColorType == fRawBitmap.colorType()) ?
SkColor2GrColor(paint.getColor()) :
SkColor2GrColorJustAlpha(paint.getColor());
if (doBicubic) {
*fp = GrBicubicEffect::Create(procDataManager, texture, matrix, tm);
} else {
*fp = GrSimpleTextureEffect::Create(procDataManager, texture, matrix, params);
}
return true;
}
void SkMatrixImageFilter::computeFastBounds(const SkRect& src, SkRect* dst) const {
SkRect bounds = src;
if (getInput(0)) {
getInput(0)->computeFastBounds(src, &bounds);
}
SkMatrix matrix;
matrix.setTranslate(-bounds.x(), -bounds.y());
matrix.postConcat(fTransform);
matrix.postTranslate(bounds.x(), bounds.y());
matrix.mapRect(dst, bounds);
}
SkMatrix View::currentTransformMatrix(View* ancestor)
{
SkMatrix m;
m.reset();
View* v = this;
while (v && v != ancestor) {
m.postConcat(v->matrix());
v = v->m_parent;
}
return m;
}
TwoPointConicalEffect::Data::Data(const SkTwoPointConicalGradient& shader, SkMatrix& matrix) {
fType = shader.getType();
if (fType == Type::kRadial) {
// Map center to (0, 0)
matrix.postTranslate(-shader.getStartCenter().fX, -shader.getStartCenter().fY);
// scale |fDiffRadius| to 1
SkScalar dr = shader.getDiffRadius();
matrix.postScale(1 / dr, 1 / dr);
fRadius0 = shader.getStartRadius() / dr;
fDiffRadius = dr < 0 ? -1 : 1;
} else if (fType == Type::kStrip) {
fRadius0 = shader.getStartRadius() / shader.getCenterX1();
fDiffRadius = 0;
matrix.postConcat(shader.getGradientMatrix());
} else if (fType == Type::kFocal) {
fFocalData = shader.getFocalData();
matrix.postConcat(shader.getGradientMatrix());
}
}
void SKPAnimationBench::drawPicture() {
SkMatrix frameMatrix = SkMatrix::MakeTrans(-fCenter.fX, -fCenter.fY);
frameMatrix.postConcat(fAnimationMatrix);
SkMatrix reverseTranslate = SkMatrix::MakeTrans(fCenter.fX, fCenter.fY);
frameMatrix.postConcat(reverseTranslate);
SkMatrix currentMatrix = frameMatrix;
for (int i = 0; i < fSteps; i++) {
for (int j = 0; j < this->tileRects().count(); ++j) {
SkMatrix trans = SkMatrix::MakeTrans(-1.f * this->tileRects()[j].fLeft,
-1.f * this->tileRects()[j].fTop);
SkMatrix tileMatrix = currentMatrix;
tileMatrix.postConcat(trans);
this->surfaces()[j]->getCanvas()->drawPicture(this->picture(), &tileMatrix, NULL);
}
for (int j = 0; j < this->tileRects().count(); ++j) {
this->surfaces()[j]->getCanvas()->flush();
}
currentMatrix.postConcat(frameMatrix);
}
}
bool SkMatrixImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm,
SkIRect* dst) const {
SkMatrix transformInverse;
if (!fTransform.invert(&transformInverse)) {
return false;
}
SkMatrix matrix;
if (!ctm.invert(&matrix)) {
return false;
}
matrix.postConcat(transformInverse);
matrix.postConcat(ctm);
SkRect floatBounds;
matrix.mapRect(&floatBounds, SkRect::Make(src));
SkIRect bounds = floatBounds.roundOut();
if (getInput(0) && !getInput(0)->filterBounds(bounds, ctm, &bounds)) {
return false;
}
*dst = bounds;
return true;
}
void SkPictureStateTree::Iterator::setCurrentMatrix(const SkMatrix* matrix) {
SkASSERT(NULL != matrix);
if (matrix == fCurrentMatrix) {
return;
}
// The matrix is in recording space, but we also inherit
// a playback matrix from out target canvas.
SkMatrix m = *matrix;
m.postConcat(fPlaybackMatrix);
fCanvas->setMatrix(m);
fCurrentMatrix = matrix;
}
sk_sp<GrFragmentProcessor> SkImageShader::asFragmentProcessor(const AsFPArgs& args) const {
SkMatrix matrix;
matrix.setIDiv(fImage->width(), fImage->height());
SkMatrix lmInverse;
if (!this->getLocalMatrix().invert(&lmInverse)) {
return nullptr;
}
if (args.fLocalMatrix) {
SkMatrix inv;
if (!args.fLocalMatrix->invert(&inv)) {
return nullptr;
}
lmInverse.postConcat(inv);
}
matrix.preConcat(lmInverse);
SkShader::TileMode tm[] = { fTileModeX, fTileModeY };
// Must set wrap and filter on the sampler before requesting a texture. In two places below
// we check the matrix scale factors to determine how to interpret the filter quality setting.
// This completely ignores the complexity of the drawVertices case where explicit local coords
// are provided by the caller.
bool doBicubic;
GrTextureParams::FilterMode textureFilterMode =
GrSkFilterQualityToGrFilterMode(args.fFilterQuality, *args.fViewMatrix, this->getLocalMatrix(),
&doBicubic);
GrTextureParams params(tm, textureFilterMode);
SkAutoTUnref<GrTexture> texture(as_IB(fImage)->asTextureRef(args.fContext, params,
args.fGammaTreatment));
if (!texture) {
return nullptr;
}
sk_sp<GrFragmentProcessor> inner;
if (doBicubic) {
inner = GrBicubicEffect::Make(texture, nullptr, matrix, tm);
} else {
inner = GrSimpleTextureEffect::Make(texture, nullptr, matrix, params);
}
if (GrPixelConfigIsAlphaOnly(texture->config())) {
return inner;
}
return sk_sp<GrFragmentProcessor>(GrFragmentProcessor::MulOutputByInputAlpha(std::move(inner)));
}
void GrAtlasTextBlob::flushBigGlyphs(GrContext* context, GrDrawContext* dc,
const GrClip& clip, const SkPaint& skPaint,
SkScalar transX, SkScalar transY,
const SkIRect& clipBounds) {
for (int i = 0; i < fBigGlyphs.count(); i++) {
GrAtlasTextBlob::BigGlyph& bigGlyph = fBigGlyphs[i];
bigGlyph.fVx += transX;
bigGlyph.fVy += transY;
SkMatrix ctm;
ctm.setScale(bigGlyph.fScale, bigGlyph.fScale);
ctm.postTranslate(bigGlyph.fVx, bigGlyph.fVy);
if (bigGlyph.fApplyVM) {
ctm.postConcat(fViewMatrix);
}
GrBlurUtils::drawPathWithMaskFilter(context, dc, clip, bigGlyph.fPath,
skPaint, ctm, nullptr, clipBounds, false);
}
}
void GrAtlasTextBlob::flushBigGlyphs(GrContext* context, GrDrawContext* dc,
const GrClip& clip, const SkPaint& skPaint,
const SkMatrix& viewMatrix, SkScalar x, SkScalar y,
const SkIRect& clipBounds) {
SkScalar transX, transY;
for (int i = 0; i < fBigGlyphs.count(); i++) {
GrAtlasTextBlob::BigGlyph& bigGlyph = fBigGlyphs[i];
calculate_translation(bigGlyph.fApplyVM, viewMatrix, x, y,
fInitialViewMatrix, fInitialX, fInitialY, &transX, &transY);
SkMatrix ctm;
ctm.setScale(bigGlyph.fScale, bigGlyph.fScale);
ctm.postTranslate(bigGlyph.fX + transX, bigGlyph.fY + transY);
if (bigGlyph.fApplyVM) {
ctm.postConcat(viewMatrix);
}
GrBlurUtils::drawPathWithMaskFilter(context, dc, clip, bigGlyph.fPath,
skPaint, ctm, nullptr, clipBounds, false);
}
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
paint.setAntiAlias(fAA);
paint.setXfermodeMode(fMode);
SkColor color = start_color(fColorType);
int w = this->getSize().x();
int h = this->getSize().y();
static const SkScalar kRectW = 25.1f;
static const SkScalar kRectH = 25.9f;
SkMatrix rotate;
// This value was chosen so that we frequently hit the axis-aligned case.
rotate.setRotate(30.f, kRectW / 2, kRectH / 2);
SkMatrix m = rotate;
SkScalar tx = 0, ty = 0;
for (int i = 0; i < loops; ++i) {
canvas->save();
canvas->translate(tx, ty);
canvas->concat(m);
paint.setColor(color);
color = advance_color(color, fColorType, i);
canvas->drawRect(SkRect::MakeWH(kRectW, kRectH), paint);
canvas->restore();
tx += kRectW + 2;
if (tx > w) {
tx = 0;
ty += kRectH + 2;
if (ty > h) {
ty = 0;
}
}
m.postConcat(rotate);
}
}
SkScalar GrPathUtils::scaleToleranceToSrc(SkScalar devTol,
const SkMatrix& viewM,
const SkRect& pathBounds) {
// In order to tesselate the path we get a bound on how much the matrix can
// scale when mapping to screen coordinates.
SkScalar stretch = viewM.getMaxScale();
SkScalar srcTol = devTol;
if (stretch < 0) {
// take worst case mapRadius amoung four corners.
// (less than perfect)
for (int i = 0; i < 4; ++i) {
SkMatrix mat;
mat.setTranslate((i % 2) ? pathBounds.fLeft : pathBounds.fRight,
(i < 2) ? pathBounds.fTop : pathBounds.fBottom);
mat.postConcat(viewM);
stretch = SkMaxScalar(stretch, mat.mapRadius(SK_Scalar1));
}
}
return srcTol / stretch;
}
void SkSVGDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bm, const SkRect* srcOrNull,
const SkRect& dst, const SkPaint& paint,
SkCanvas::SrcRectConstraint) {
SkMatrix adjustedMatrix;
adjustedMatrix.setRectToRect(srcOrNull ? *srcOrNull : SkRect::Make(bm.bounds()),
dst,
SkMatrix::kFill_ScaleToFit);
adjustedMatrix.postConcat(*draw.fMatrix);
SkDraw adjustedDraw(draw);
adjustedDraw.fMatrix = &adjustedMatrix;
SkClipStack adjustedClipStack;
if (srcOrNull && *srcOrNull != SkRect::Make(bm.bounds())) {
adjustedClipStack = *draw.fClipStack;
adjustedClipStack.clipRect(dst, *draw.fMatrix, SkCanvas::kIntersect_Op,
paint.isAntiAlias());
adjustedDraw.fClipStack = &adjustedClipStack;
}
drawBitmapCommon(adjustedDraw, bm, paint);
}
void SkSVGDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bm, const SkRect* srcOrNull,
const SkRect& dst, const SkPaint& paint,
SK_VIRTUAL_CONSTRAINT_TYPE) {
SkMatrix adjustedMatrix;
adjustedMatrix.setRectToRect(srcOrNull ? *srcOrNull : SkRect::Make(bm.bounds()),
dst,
SkMatrix::kFill_ScaleToFit);
adjustedMatrix.postConcat(*draw.fMatrix);
SkDraw adjustedDraw(draw);
adjustedDraw.fMatrix = &adjustedMatrix;
SkClipStack adjustedClipStack;
if (srcOrNull && *srcOrNull != SkRect::Make(bm.bounds())) {
SkRect devClipRect;
draw.fMatrix->mapRect(&devClipRect, dst);
adjustedClipStack = *draw.fClipStack;
adjustedClipStack.clipDevRect(devClipRect, SkRegion::kIntersect_Op, paint.isAntiAlias());
adjustedDraw.fClipStack = &adjustedClipStack;
}
drawBitmapCommon(adjustedDraw, bm, paint);
}
std::unique_ptr<GrFragmentProcessor> Gr2PtConicalGradientEffect::Make(
const GrGradientEffect::CreateArgs& args) {
const SkTwoPointConicalGradient& shader =
*static_cast<const SkTwoPointConicalGradient*>(args.fShader);
SkMatrix matrix;
if (!shader.getLocalMatrix().invert(&matrix)) {
return nullptr;
}
if (args.fMatrix) {
SkMatrix inv;
if (!args.fMatrix->invert(&inv)) {
return nullptr;
}
matrix.postConcat(inv);
}
GrGradientEffect::CreateArgs newArgs(args.fContext, args.fShader, &matrix, args.fWrapMode,
args.fDstColorSpace);
// Data and matrix has to be prepared before constructing TwoPointConicalEffect so its parent
// class can have the right matrix to work with during construction.
TwoPointConicalEffect::Data data(shader, matrix);
return TwoPointConicalEffect::Make(newArgs, data);
}
static void test_matrix_min_max_scale(skiatest::Reporter* reporter) {
SkScalar scales[2];
bool success;
SkMatrix identity;
identity.reset();
REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMinScale());
REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMaxScale());
success = identity.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success && SK_Scalar1 == scales[0] && SK_Scalar1 == scales[1]);
SkMatrix scale;
scale.setScale(SK_Scalar1 * 2, SK_Scalar1 * 4);
REPORTER_ASSERT(reporter, SK_Scalar1 * 2 == scale.getMinScale());
REPORTER_ASSERT(reporter, SK_Scalar1 * 4 == scale.getMaxScale());
success = scale.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success && SK_Scalar1 * 2 == scales[0] && SK_Scalar1 * 4 == scales[1]);
SkMatrix rot90Scale;
rot90Scale.setRotate(90 * SK_Scalar1);
rot90Scale.postScale(SK_Scalar1 / 4, SK_Scalar1 / 2);
REPORTER_ASSERT(reporter, SK_Scalar1 / 4 == rot90Scale.getMinScale());
REPORTER_ASSERT(reporter, SK_Scalar1 / 2 == rot90Scale.getMaxScale());
success = rot90Scale.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success && SK_Scalar1 / 4 == scales[0] && SK_Scalar1 / 2 == scales[1]);
SkMatrix rotate;
rotate.setRotate(128 * SK_Scalar1);
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, rotate.getMinScale(), SK_ScalarNearlyZero));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, rotate.getMaxScale(), SK_ScalarNearlyZero));
success = rotate.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success);
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, scales[0], SK_ScalarNearlyZero));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SK_Scalar1, scales[1], SK_ScalarNearlyZero));
SkMatrix translate;
translate.setTranslate(10 * SK_Scalar1, -5 * SK_Scalar1);
REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMinScale());
REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMaxScale());
success = translate.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success && SK_Scalar1 == scales[0] && SK_Scalar1 == scales[1]);
SkMatrix perspX;
perspX.reset();
perspX.setPerspX(SkScalarToPersp(SK_Scalar1 / 1000));
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMinScale());
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMaxScale());
// Verify that getMinMaxScales() doesn't update the scales array on failure.
scales[0] = -5;
scales[1] = -5;
success = perspX.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, !success && -5 * SK_Scalar1 == scales[0] && -5 * SK_Scalar1 == scales[1]);
SkMatrix perspY;
perspY.reset();
perspY.setPerspY(SkScalarToPersp(-SK_Scalar1 / 500));
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMinScale());
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMaxScale());
scales[0] = -5;
scales[1] = -5;
success = perspY.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, !success && -5 * SK_Scalar1 == scales[0] && -5 * SK_Scalar1 == scales[1]);
SkMatrix baseMats[] = {scale, rot90Scale, rotate,
translate, perspX, perspY};
SkMatrix mats[2*SK_ARRAY_COUNT(baseMats)];
for (size_t i = 0; i < SK_ARRAY_COUNT(baseMats); ++i) {
mats[i] = baseMats[i];
bool invertable = mats[i].invert(&mats[i + SK_ARRAY_COUNT(baseMats)]);
REPORTER_ASSERT(reporter, invertable);
}
SkRandom rand;
for (int m = 0; m < 1000; ++m) {
SkMatrix mat;
mat.reset();
for (int i = 0; i < 4; ++i) {
int x = rand.nextU() % SK_ARRAY_COUNT(mats);
mat.postConcat(mats[x]);
}
SkScalar minScale = mat.getMinScale();
SkScalar maxScale = mat.getMaxScale();
REPORTER_ASSERT(reporter, (minScale < 0) == (maxScale < 0));
REPORTER_ASSERT(reporter, (maxScale < 0) == mat.hasPerspective());
SkScalar scales[2];
bool success = mat.getMinMaxScales(scales);
REPORTER_ASSERT(reporter, success == !mat.hasPerspective());
REPORTER_ASSERT(reporter, !success || (scales[0] == minScale && scales[1] == maxScale));
if (mat.hasPerspective()) {
m -= 1; // try another non-persp matrix
continue;
}
// test a bunch of vectors. All should be scaled by between minScale and maxScale
// (modulo some error) and we should find a vector that is scaled by almost each.
static const SkScalar gVectorScaleTol = (105 * SK_Scalar1) / 100;
static const SkScalar gCloseScaleTol = (97 * SK_Scalar1) / 100;
SkScalar max = 0, min = SK_ScalarMax;
SkVector vectors[1000];
for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) {
vectors[i].fX = rand.nextSScalar1();
vectors[i].fY = rand.nextSScalar1();
if (!vectors[i].normalize()) {
i -= 1;
continue;
}
}
mat.mapVectors(vectors, SK_ARRAY_COUNT(vectors));
for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) {
SkScalar d = vectors[i].length();
REPORTER_ASSERT(reporter, SkScalarDiv(d, maxScale) < gVectorScaleTol);
REPORTER_ASSERT(reporter, SkScalarDiv(minScale, d) < gVectorScaleTol);
if (max < d) {
max = d;
}
if (min > d) {
min = d;
}
}
REPORTER_ASSERT(reporter, SkScalarDiv(max, maxScale) >= gCloseScaleTol);
REPORTER_ASSERT(reporter, SkScalarDiv(minScale, min) >= gCloseScaleTol);
}
}
static void test_matrix_max_stretch(skiatest::Reporter* reporter) {
SkMatrix identity;
identity.reset();
REPORTER_ASSERT(reporter, SK_Scalar1 == identity.getMaxStretch());
SkMatrix scale;
scale.setScale(SK_Scalar1 * 2, SK_Scalar1 * 4);
REPORTER_ASSERT(reporter, SK_Scalar1 * 4 == scale.getMaxStretch());
SkMatrix rot90Scale;
rot90Scale.setRotate(90 * SK_Scalar1);
rot90Scale.postScale(SK_Scalar1 / 4, SK_Scalar1 / 2);
REPORTER_ASSERT(reporter, SK_Scalar1 / 2 == rot90Scale.getMaxStretch());
SkMatrix rotate;
rotate.setRotate(128 * SK_Scalar1);
REPORTER_ASSERT(reporter, SkScalarAbs(SK_Scalar1 - rotate.getMaxStretch()) <= SK_ScalarNearlyZero);
SkMatrix translate;
translate.setTranslate(10 * SK_Scalar1, -5 * SK_Scalar1);
REPORTER_ASSERT(reporter, SK_Scalar1 == translate.getMaxStretch());
SkMatrix perspX;
perspX.reset();
perspX.setPerspX(SkScalarToPersp(SK_Scalar1 / 1000));
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspX.getMaxStretch());
SkMatrix perspY;
perspY.reset();
perspY.setPerspX(SkScalarToPersp(-SK_Scalar1 / 500));
REPORTER_ASSERT(reporter, -SK_Scalar1 == perspY.getMaxStretch());
SkMatrix baseMats[] = {scale, rot90Scale, rotate,
translate, perspX, perspY};
SkMatrix mats[2*SK_ARRAY_COUNT(baseMats)];
for (size_t i = 0; i < SK_ARRAY_COUNT(baseMats); ++i) {
mats[i] = baseMats[i];
bool invertable = mats[i].invert(&mats[i + SK_ARRAY_COUNT(baseMats)]);
REPORTER_ASSERT(reporter, invertable);
}
SkMWCRandom rand;
for (int m = 0; m < 1000; ++m) {
SkMatrix mat;
mat.reset();
for (int i = 0; i < 4; ++i) {
int x = rand.nextU() % SK_ARRAY_COUNT(mats);
mat.postConcat(mats[x]);
}
SkScalar stretch = mat.getMaxStretch();
if ((stretch < 0) != mat.hasPerspective()) {
stretch = mat.getMaxStretch();
}
REPORTER_ASSERT(reporter, (stretch < 0) == mat.hasPerspective());
if (mat.hasPerspective()) {
m -= 1; // try another non-persp matrix
continue;
}
// test a bunch of vectors. None should be scaled by more than stretch
// (modulo some error) and we should find a vector that is scaled by
// almost stretch.
static const SkScalar gStretchTol = (105 * SK_Scalar1) / 100;
static const SkScalar gMaxStretchTol = (97 * SK_Scalar1) / 100;
SkScalar max = 0;
SkVector vectors[1000];
for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) {
vectors[i].fX = rand.nextSScalar1();
vectors[i].fY = rand.nextSScalar1();
if (!vectors[i].normalize()) {
i -= 1;
continue;
}
}
mat.mapVectors(vectors, SK_ARRAY_COUNT(vectors));
for (size_t i = 0; i < SK_ARRAY_COUNT(vectors); ++i) {
SkScalar d = vectors[i].length();
REPORTER_ASSERT(reporter, SkScalarDiv(d, stretch) < gStretchTol);
if (max < d) {
max = d;
}
}
REPORTER_ASSERT(reporter, SkScalarDiv(max, stretch) >= gMaxStretchTol);
}
}
void SkPicturePlayback::handleOp(SkReadBuffer* reader,
DrawType op,
uint32_t size,
SkCanvas* canvas,
const SkMatrix& initialMatrix) {
#define BREAK_ON_READ_ERROR(r) if (!r->isValid()) break
switch (op) {
case NOOP: {
SkASSERT(size >= 4);
reader->skip(size - 4);
} break;
case FLUSH:
canvas->flush();
break;
case CLIP_PATH: {
const SkPath& path = fPictureData->getPath(reader);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipPath(path, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_REGION: {
SkRegion region;
reader->readRegion(®ion);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRegion(region, clipOp);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_RECT: {
SkRect rect;
reader->readRect(&rect);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRect(rect, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case CLIP_RRECT: {
SkRRect rrect;
reader->readRRect(&rrect);
uint32_t packed = reader->readInt();
SkClipOp clipOp = ClipParams_unpackRegionOp(reader, packed);
bool doAA = ClipParams_unpackDoAA(packed);
size_t offsetToRestore = reader->readInt();
validate_offsetToRestore(reader, offsetToRestore);
BREAK_ON_READ_ERROR(reader);
canvas->clipRRect(rrect, clipOp, doAA);
if (canvas->isClipEmpty() && offsetToRestore) {
reader->skip(offsetToRestore - reader->offset());
}
} break;
case PUSH_CULL: break; // Deprecated, safe to ignore both push and pop.
case POP_CULL: break;
case CONCAT: {
SkMatrix matrix;
reader->readMatrix(&matrix);
BREAK_ON_READ_ERROR(reader);
canvas->concat(matrix);
break;
}
case DRAW_ANNOTATION: {
SkRect rect;
reader->readRect(&rect);
SkString key;
reader->readString(&key);
sk_sp<SkData> data = reader->readByteArrayAsData();
BREAK_ON_READ_ERROR(reader);
SkASSERT(data);
canvas->drawAnnotation(rect, key.c_str(), data.get());
} break;
case DRAW_ARC: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
SkScalar startAngle = reader->readScalar();
SkScalar sweepAngle = reader->readScalar();
int useCenter = reader->readInt();
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawArc(rect, startAngle, sweepAngle, SkToBool(useCenter), *paint);
}
} break;
case DRAW_ATLAS: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* atlas = fPictureData->getImage(reader);
const uint32_t flags = reader->readUInt();
const int count = reader->readUInt();
const SkRSXform* xform = (const SkRSXform*)reader->skip(count, sizeof(SkRSXform));
const SkRect* tex = (const SkRect*)reader->skip(count, sizeof(SkRect));
const SkColor* colors = nullptr;
SkBlendMode mode = SkBlendMode::kDst;
if (flags & DRAW_ATLAS_HAS_COLORS) {
colors = (const SkColor*)reader->skip(count, sizeof(SkColor));
mode = (SkBlendMode)reader->readUInt();
}
const SkRect* cull = nullptr;
if (flags & DRAW_ATLAS_HAS_CULL) {
cull = (const SkRect*)reader->skip(sizeof(SkRect));
}
BREAK_ON_READ_ERROR(reader);
canvas->drawAtlas(atlas, xform, tex, colors, count, mode, cull, paint);
} break;
case DRAW_CLEAR: {
auto c = reader->readInt();
BREAK_ON_READ_ERROR(reader);
canvas->clear(c);
} break;
case DRAW_DATA: {
// This opcode is now dead, just need to skip it for backwards compatibility
size_t length = reader->readInt();
(void)reader->skip(length);
// skip handles padding the read out to a multiple of 4
} break;
case DRAW_DRAWABLE: {
auto* d = fPictureData->getDrawable(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawDrawable(d);
} break;
case DRAW_DRAWABLE_MATRIX: {
SkMatrix matrix;
reader->readMatrix(&matrix);
SkDrawable* drawable = fPictureData->getDrawable(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawDrawable(drawable, &matrix);
} break;
case DRAW_DRRECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRRect outer, inner;
reader->readRRect(&outer);
reader->readRRect(&inner);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawDRRect(outer, inner, *paint);
}
} break;
case DRAW_EDGEAA_QUAD: {
SkRect rect;
reader->readRect(&rect);
SkCanvas::QuadAAFlags aaFlags = static_cast<SkCanvas::QuadAAFlags>(reader->read32());
SkColor color = reader->read32();
SkBlendMode blend = static_cast<SkBlendMode>(reader->read32());
bool hasClip = reader->readInt();
SkPoint* clip = nullptr;
if (hasClip) {
clip = (SkPoint*) reader->skip(4, sizeof(SkPoint));
}
BREAK_ON_READ_ERROR(reader);
canvas->experimental_DrawEdgeAAQuad(rect, clip, aaFlags, color, blend);
} break;
case DRAW_EDGEAA_IMAGE_SET: {
static const size_t kEntryReadSize =
4 * sizeof(uint32_t) + 2 * sizeof(SkRect) + sizeof(SkScalar);
static const size_t kMatrixSize = 9 * sizeof(SkScalar); // != sizeof(SkMatrix)
int cnt = reader->readInt();
if (!reader->validate(cnt >= 0)) {
break;
}
const SkPaint* paint = fPictureData->getPaint(reader);
SkCanvas::SrcRectConstraint constraint =
static_cast<SkCanvas::SrcRectConstraint>(reader->readInt());
if (!reader->validate(SkSafeMath::Mul(cnt, kEntryReadSize) <= reader->available())) {
break;
}
// Track minimum necessary clip points and matrices that must be provided to satisfy
// the entries.
int expectedClips = 0;
int maxMatrixIndex = -1;
SkAutoTArray<SkCanvas::ImageSetEntry> set(cnt);
for (int i = 0; i < cnt && reader->isValid(); ++i) {
set[i].fImage = sk_ref_sp(fPictureData->getImage(reader));
reader->readRect(&set[i].fSrcRect);
reader->readRect(&set[i].fDstRect);
set[i].fMatrixIndex = reader->readInt();
set[i].fAlpha = reader->readScalar();
set[i].fAAFlags = reader->readUInt();
set[i].fHasClip = reader->readInt();
expectedClips += set[i].fHasClip ? 1 : 0;
if (set[i].fMatrixIndex > maxMatrixIndex) {
maxMatrixIndex = set[i].fMatrixIndex;
}
}
int dstClipCount = reader->readInt();
SkPoint* dstClips = nullptr;
if (!reader->validate(expectedClips <= dstClipCount)) {
// Entries request more dstClip points than are provided in the buffer
break;
} else if (dstClipCount > 0) {
dstClips = (SkPoint*) reader->skip(dstClipCount, sizeof(SkPoint));
if (dstClips == nullptr) {
// Not enough bytes remaining so the reader has been invalidated
break;
}
}
int matrixCount = reader->readInt();
if (!reader->validate((maxMatrixIndex + 1) <= matrixCount) ||
!reader->validate(
SkSafeMath::Mul(matrixCount, kMatrixSize) <= reader->available())) {
// Entries access out-of-bound matrix indices, given provided matrices or
// there aren't enough bytes to provide that many matrices
break;
}
SkTArray<SkMatrix> matrices(matrixCount);
for (int i = 0; i < matrixCount && reader->isValid(); ++i) {
reader->readMatrix(&matrices.push_back());
}
BREAK_ON_READ_ERROR(reader);
canvas->experimental_DrawEdgeAAImageSet(set.get(), cnt, dstClips, matrices.begin(),
paint, constraint);
} break;
case DRAW_IMAGE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkPoint loc;
reader->readPoint(&loc);
BREAK_ON_READ_ERROR(reader);
canvas->drawImage(image, loc.fX, loc.fY, paint);
} break;
case DRAW_IMAGE_LATTICE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkCanvas::Lattice lattice;
(void)SkCanvasPriv::ReadLattice(*reader, &lattice);
const SkRect* dst = reader->skipT<SkRect>();
BREAK_ON_READ_ERROR(reader);
canvas->drawImageLattice(image, lattice, *dst, paint);
} break;
case DRAW_IMAGE_NINE: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkIRect center;
reader->readIRect(¢er);
SkRect dst;
reader->readRect(&dst);
BREAK_ON_READ_ERROR(reader);
canvas->drawImageNine(image, center, dst, paint);
} break;
case DRAW_IMAGE_RECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkImage* image = fPictureData->getImage(reader);
SkRect storage;
const SkRect* src = get_rect_ptr(reader, &storage); // may be null
SkRect dst;
reader->readRect(&dst); // required
// DRAW_IMAGE_RECT_STRICT assumes this constraint, and doesn't store it
SkCanvas::SrcRectConstraint constraint = SkCanvas::kStrict_SrcRectConstraint;
if (DRAW_IMAGE_RECT == op) {
// newer op-code stores the constraint explicitly
constraint = (SkCanvas::SrcRectConstraint)reader->readInt();
}
BREAK_ON_READ_ERROR(reader);
canvas->legacy_drawImageRect(image, src, dst, paint, constraint);
} break;
case DRAW_OVAL: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawOval(rect, *paint);
}
} break;
case DRAW_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPaint(*paint);
}
} break;
case DRAW_BEHIND_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
SkCanvasPriv::DrawBehind(canvas, *paint);
}
} break;
case DRAW_PATCH: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkPoint* cubics = (const SkPoint*)reader->skip(SkPatchUtils::kNumCtrlPts,
sizeof(SkPoint));
uint32_t flag = reader->readInt();
const SkColor* colors = nullptr;
if (flag & DRAW_VERTICES_HAS_COLORS) {
colors = (const SkColor*)reader->skip(SkPatchUtils::kNumCorners, sizeof(SkColor));
}
const SkPoint* texCoords = nullptr;
if (flag & DRAW_VERTICES_HAS_TEXS) {
texCoords = (const SkPoint*)reader->skip(SkPatchUtils::kNumCorners,
sizeof(SkPoint));
}
SkBlendMode bmode = SkBlendMode::kModulate;
if (flag & DRAW_VERTICES_HAS_XFER) {
unsigned mode = reader->readInt();
if (mode <= (unsigned)SkBlendMode::kLastMode) {
bmode = (SkBlendMode)mode;
}
}
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPatch(cubics, colors, texCoords, bmode, *paint);
}
} break;
case DRAW_PATH: {
const SkPaint* paint = fPictureData->getPaint(reader);
const auto& path = fPictureData->getPath(reader);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPath(path, *paint);
}
} break;
case DRAW_PICTURE: {
const auto* pic = fPictureData->getPicture(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawPicture(pic);
} break;
case DRAW_PICTURE_MATRIX_PAINT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkMatrix matrix;
reader->readMatrix(&matrix);
const SkPicture* pic = fPictureData->getPicture(reader);
BREAK_ON_READ_ERROR(reader);
canvas->drawPicture(pic, &matrix, paint);
} break;
case DRAW_POINTS: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkCanvas::PointMode mode = (SkCanvas::PointMode)reader->readInt();
size_t count = reader->readInt();
const SkPoint* pts = (const SkPoint*)reader->skip(count, sizeof(SkPoint));
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawPoints(mode, count, pts, *paint);
}
} break;
case DRAW_RECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRect rect;
reader->readRect(&rect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRect(rect, *paint);
}
} break;
case DRAW_REGION: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRegion region;
reader->readRegion(®ion);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRegion(region, *paint);
}
} break;
case DRAW_RRECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
SkRRect rrect;
reader->readRRect(&rrect);
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawRRect(rrect, *paint);
}
} break;
case DRAW_SHADOW_REC: {
const auto& path = fPictureData->getPath(reader);
SkDrawShadowRec rec;
reader->readPoint3(&rec.fZPlaneParams);
reader->readPoint3(&rec.fLightPos);
rec.fLightRadius = reader->readScalar();
if (reader->isVersionLT(SkReadBuffer::kTwoColorDrawShadow_Version)) {
SkScalar ambientAlpha = reader->readScalar();
SkScalar spotAlpha = reader->readScalar();
SkColor color = reader->read32();
rec.fAmbientColor = SkColorSetA(color, SkColorGetA(color)*ambientAlpha);
rec.fSpotColor = SkColorSetA(color, SkColorGetA(color)*spotAlpha);
} else {
rec.fAmbientColor = reader->read32();
rec.fSpotColor = reader->read32();
}
rec.fFlags = reader->read32();
BREAK_ON_READ_ERROR(reader);
canvas->private_draw_shadow_rec(path, rec);
} break;
case DRAW_TEXT_BLOB: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkTextBlob* blob = fPictureData->getTextBlob(reader);
SkScalar x = reader->readScalar();
SkScalar y = reader->readScalar();
BREAK_ON_READ_ERROR(reader);
if (paint) {
canvas->drawTextBlob(blob, x, y, *paint);
}
} break;
case DRAW_VERTICES_OBJECT: {
const SkPaint* paint = fPictureData->getPaint(reader);
const SkVertices* vertices = fPictureData->getVertices(reader);
const int boneCount = reader->readInt();
const SkVertices::Bone* bones = boneCount ?
(const SkVertices::Bone*) reader->skip(boneCount, sizeof(SkVertices::Bone)) :
nullptr;
SkBlendMode bmode = reader->read32LE(SkBlendMode::kLastMode);
BREAK_ON_READ_ERROR(reader);
if (paint && vertices) {
canvas->drawVertices(vertices, bones, boneCount, bmode, *paint);
}
} break;
case RESTORE:
canvas->restore();
break;
case ROTATE: {
auto deg = reader->readScalar();
canvas->rotate(deg);
} break;
case SAVE:
canvas->save();
break;
case SAVE_BEHIND: {
uint32_t flags = reader->readInt();
const SkRect* subset = nullptr;
SkRect storage;
if (flags & SAVEBEHIND_HAS_SUBSET) {
reader->readRect(&storage);
subset = &storage;
}
SkCanvasPriv::SaveBehind(canvas, subset);
} break;
case SAVE_LAYER_SAVEFLAGS_DEPRECATED: {
SkRect storage;
const SkRect* boundsPtr = get_rect_ptr(reader, &storage);
const SkPaint* paint = fPictureData->getPaint(reader);
auto flags = SkCanvasPriv::LegacySaveFlagsToSaveLayerFlags(reader->readInt());
BREAK_ON_READ_ERROR(reader);
canvas->saveLayer(SkCanvas::SaveLayerRec(boundsPtr, paint, flags));
} break;
case SAVE_LAYER_SAVELAYERREC: {
SkCanvas::SaveLayerRec rec(nullptr, nullptr, nullptr, nullptr, nullptr, 0);
SkMatrix clipMatrix;
const uint32_t flatFlags = reader->readInt();
SkRect bounds;
if (flatFlags & SAVELAYERREC_HAS_BOUNDS) {
reader->readRect(&bounds);
rec.fBounds = &bounds;
}
if (flatFlags & SAVELAYERREC_HAS_PAINT) {
rec.fPaint = fPictureData->getPaint(reader);
}
if (flatFlags & SAVELAYERREC_HAS_BACKDROP) {
if (const auto* paint = fPictureData->getPaint(reader)) {
rec.fBackdrop = paint->getImageFilter();
}
}
if (flatFlags & SAVELAYERREC_HAS_FLAGS) {
rec.fSaveLayerFlags = reader->readInt();
}
if (flatFlags & SAVELAYERREC_HAS_CLIPMASK) {
rec.fClipMask = fPictureData->getImage(reader);
}
if (flatFlags & SAVELAYERREC_HAS_CLIPMATRIX) {
reader->readMatrix(&clipMatrix);
rec.fClipMatrix = &clipMatrix;
}
BREAK_ON_READ_ERROR(reader);
canvas->saveLayer(rec);
} break;
case SCALE: {
SkScalar sx = reader->readScalar();
SkScalar sy = reader->readScalar();
canvas->scale(sx, sy);
} break;
case SET_MATRIX: {
SkMatrix matrix;
reader->readMatrix(&matrix);
matrix.postConcat(initialMatrix);
canvas->setMatrix(matrix);
} break;
case SKEW: {
SkScalar sx = reader->readScalar();
SkScalar sy = reader->readScalar();
canvas->skew(sx, sy);
} break;
case TRANSLATE: {
SkScalar dx = reader->readScalar();
SkScalar dy = reader->readScalar();
canvas->translate(dx, dy);
} break;
default:
reader->validate(false); // unknown op
break;
}
#undef BREAK_ON_READ_ERROR
}
int SkBuildQuadArc(const SkVector& uStart, const SkVector& uStop,
SkRotationDirection dir, const SkMatrix* userMatrix,
SkPoint quadPoints[])
{
// rotate by x,y so that uStart is (1.0)
SkScalar x = SkPoint::DotProduct(uStart, uStop);
SkScalar y = SkPoint::CrossProduct(uStart, uStop);
SkScalar absX = SkScalarAbs(x);
SkScalar absY = SkScalarAbs(y);
int pointCount;
// check for (effectively) coincident vectors
// this can happen if our angle is nearly 0 or nearly 180 (y == 0)
// ... we use the dot-prod to distinguish between 0 and 180 (x > 0)
if (absY <= SK_ScalarNearlyZero && x > 0 &&
((y >= 0 && kCW_SkRotationDirection == dir) ||
(y <= 0 && kCCW_SkRotationDirection == dir))) {
// just return the start-point
quadPoints[0].set(SK_Scalar1, 0);
pointCount = 1;
} else {
if (dir == kCCW_SkRotationDirection)
y = -y;
// what octant (quadratic curve) is [xy] in?
int oct = 0;
bool sameSign = true;
if (0 == y)
{
oct = 4; // 180
SkASSERT(SkScalarAbs(x + SK_Scalar1) <= SK_ScalarNearlyZero);
}
else if (0 == x)
{
SkASSERT(absY - SK_Scalar1 <= SK_ScalarNearlyZero);
if (y > 0)
oct = 2; // 90
else
oct = 6; // 270
}
else
{
if (y < 0)
oct += 4;
if ((x < 0) != (y < 0))
{
oct += 2;
sameSign = false;
}
if ((absX < absY) == sameSign)
oct += 1;
}
int wholeCount = oct << 1;
memcpy(quadPoints, gQuadCirclePts, (wholeCount + 1) * sizeof(SkPoint));
const SkPoint* arc = &gQuadCirclePts[wholeCount];
if (quad_pt2OffCurve(arc, x, y, &quadPoints[wholeCount + 1]))
{
quadPoints[wholeCount + 2].set(x, y);
wholeCount += 2;
}
pointCount = wholeCount + 1;
}
// now handle counter-clockwise and the initial unitStart rotation
SkMatrix matrix;
matrix.setSinCos(uStart.fY, uStart.fX);
if (dir == kCCW_SkRotationDirection) {
matrix.preScale(SK_Scalar1, -SK_Scalar1);
}
if (userMatrix) {
matrix.postConcat(*userMatrix);
}
matrix.mapPoints(quadPoints, pointCount);
return pointCount;
}
void GrInOrderDrawBuffer::onDrawRect(const GrRect& rect,
const SkMatrix* matrix,
const GrRect* localRect,
const SkMatrix* localMatrix) {
GrDrawState::AutoColorRestore acr;
GrDrawState* drawState = this->drawState();
GrColor color = drawState->getColor();
int colorOffset, localOffset;
set_vertex_attributes(drawState,
this->caps()->dualSourceBlendingSupport() || drawState->hasSolidCoverage(),
NULL != localRect,
&colorOffset, &localOffset);
if (colorOffset >= 0) {
// We set the draw state's color to white here. This is done so that any batching performed
// in our subclass's onDraw() won't get a false from GrDrawState::op== due to a color
// mismatch. TODO: Once vertex layout is owned by GrDrawState it should skip comparing the
// constant color in its op== when the kColor layout bit is set and then we can remove
// this.
acr.set(drawState, 0xFFFFFFFF);
}
AutoReleaseGeometry geo(this, 4, 0);
if (!geo.succeeded()) {
GrPrintf("Failed to get space for vertices!\n");
return;
}
// Go to device coords to allow batching across matrix changes
SkMatrix combinedMatrix;
if (NULL != matrix) {
combinedMatrix = *matrix;
} else {
combinedMatrix.reset();
}
combinedMatrix.postConcat(drawState->getViewMatrix());
// When the caller has provided an explicit source rect for a stage then we don't want to
// modify that stage's matrix. Otherwise if the effect is generating its source rect from
// the vertex positions then we have to account for the view matrix change.
GrDrawState::AutoViewMatrixRestore avmr;
if (!avmr.setIdentity(drawState)) {
return;
}
size_t vsize = drawState->getVertexSize();
geo.positions()->setRectFan(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, vsize);
combinedMatrix.mapPointsWithStride(geo.positions(), vsize, 4);
SkRect devBounds;
// since we already computed the dev verts, set the bounds hint. This will help us avoid
// unnecessary clipping in our onDraw().
get_vertex_bounds(geo.vertices(), vsize, 4, &devBounds);
if (localOffset >= 0) {
GrPoint* coords = GrTCast<GrPoint*>(GrTCast<intptr_t>(geo.vertices()) + localOffset);
coords->setRectFan(localRect->fLeft, localRect->fTop,
localRect->fRight, localRect->fBottom,
vsize);
if (NULL != localMatrix) {
localMatrix->mapPointsWithStride(coords, vsize, 4);
}
}
if (colorOffset >= 0) {
GrColor* vertColor = GrTCast<GrColor*>(GrTCast<intptr_t>(geo.vertices()) + colorOffset);
for (int i = 0; i < 4; ++i) {
*vertColor = color;
vertColor = (GrColor*) ((intptr_t) vertColor + vsize);
}
}
this->setIndexSourceToBuffer(this->getContext()->getQuadIndexBuffer());
this->drawIndexedInstances(kTriangles_GrPrimitiveType, 1, 4, 6, &devBounds);
// to ensure that stashing the drawState ptr is valid
GrAssert(this->drawState() == drawState);
}
