void SkPictureImageFilter::drawPictureAtLocalResolution(SkSpecialImage* source,
SkCanvas* canvas,
const SkIRect& deviceBounds,
const Context& ctx) const {
SkMatrix inverseCtm;
if (!ctx.ctm().invert(&inverseCtm)) {
return;
}
SkRect localBounds = SkRect::Make(ctx.clipBounds());
inverseCtm.mapRect(&localBounds);
if (!localBounds.intersect(fCropRect)) {
return;
}
SkIRect localIBounds = localBounds.roundOut();
sk_sp<SkSpecialImage> localImg;
{
const SkImageInfo info = SkImageInfo::MakeN32(localIBounds.width(), localIBounds.height(),
kPremul_SkAlphaType);
sk_sp<SkSpecialSurface> localSurface(source->makeSurface(info));
if (!localSurface) {
return;
}
SkCanvas* localCanvas = localSurface->getCanvas();
SkASSERT(localCanvas);
localCanvas->translate(-SkIntToScalar(localIBounds.fLeft),
-SkIntToScalar(localIBounds.fTop));
localCanvas->drawPicture(fPicture);
localImg = localSurface->makeImageSnapshot();
SkASSERT(localImg);
}
{
canvas->translate(-SkIntToScalar(deviceBounds.fLeft), -SkIntToScalar(deviceBounds.fTop));
canvas->concat(ctx.ctm());
SkPaint paint;
paint.setFilterQuality(fFilterQuality);
localImg->draw(canvas,
SkIntToScalar(localIBounds.fLeft),
SkIntToScalar(localIBounds.fTop),
&paint);
}
}
void ClipRectToCanvas(const SkCanvas& canvas, const SkRect& srcRect, SkRect* destRect) {
// Translate into the canvas' coordinate space. This is where the clipping
// region applies.
SkRect transformedSrc;
canvas.getTotalMatrix().mapRect(&transformedSrc, srcRect);
// Do the intersection.
SkRect transformedDest;
IntersectRectAndRegion(canvas.getTotalClip(), transformedSrc, &transformedDest);
// Now transform it back into world space.
SkMatrix inverseTransform;
canvas.getTotalMatrix().invert(&inverseTransform);
inverseTransform.mapRect(destRect, transformedDest);
}
void GrLayerHoister::FindLayersToHoist(GrContext* context,
const SkPicture* topLevelPicture,
const SkMatrix& initialMat,
const SkRect& query,
SkTDArray<GrHoistedLayer>* needRendering,
SkTDArray<GrHoistedLayer>* recycled,
int numSamples) {
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
SkPicture::AccelData::Key key = SkLayerInfo::ComputeKey();
const SkPicture::AccelData* topLevelData = topLevelPicture->EXPERIMENTAL_getAccelData(key);
if (!topLevelData) {
return;
}
const SkLayerInfo *topLevelGPUData = static_cast<const SkLayerInfo*>(topLevelData);
if (0 == topLevelGPUData->numBlocks()) {
return;
}
// Find and prepare for hoisting all the layers that intersect the query rect
for (int i = 0; i < topLevelGPUData->numBlocks(); ++i) {
const SkLayerInfo::BlockInfo& info = topLevelGPUData->block(i);
if (info.fIsNested) {
// Parent layers are currently hoisted while nested layers are not.
continue;
}
SkRect layerRect;
initialMat.mapRect(&layerRect, info.fBounds);
if (!layerRect.intersect(query)) {
continue;
}
const SkIRect dstIR = layerRect.roundOut();
SkIRect srcIR;
if (!compute_source_rect(info, initialMat, dstIR, &srcIR)) {
continue;
}
prepare_for_hoisting(layerCache, topLevelPicture, initialMat, info, srcIR, dstIR,
needRendering, recycled, false, numSamples);
}
}
void GrDrawTarget::drawPath(const GrPath* path, GrPathRendering::FillType fill) {
// TODO: extract portions of checkDraw that are relevant to path rendering.
SkASSERT(path);
SkASSERT(this->caps()->pathRenderingSupport());
SkRect devBounds = path->getBounds();
SkMatrix viewM = this->drawState()->getViewMatrix();
viewM.mapRect(&devBounds);
GrDeviceCoordTexture dstCopy;
if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
return;
}
this->onDrawPath(path, fill, dstCopy.texture() ? &dstCopy : NULL);
}
FloatRect FEBoxReflect::mapRect(const FloatRect& rect, bool forward)
{
SkMatrix flipMatrix = SkiaImageFilterBuilder().matrixForBoxReflectFilter(
m_reflectionDirection, m_offset);
if (!forward) {
bool inverted = flipMatrix.invert(&flipMatrix);
DCHECK(inverted) << "box reflect matrix must be invertible";
}
SkRect reflection(rect);
flipMatrix.mapRect(&reflection);
FloatRect result = rect;
result.unite(reflection);
return result;
}
void performTest() override {
if (fFlags & kUncachedTypeMask_Flag) {
// This will invalidate the typemask without
// changing the matrix.
fMatrix.setPerspX(fMatrix.getPerspX());
}
SkMatrix inv;
bool invertible = fMatrix.invert(&inv);
SkASSERT(invertible);
SkRect transformedRect;
// an arbitrary, small, non-zero rect to transform
SkRect srcRect = SkRect::MakeWH(SkIntToScalar(10), SkIntToScalar(10));
if (invertible) {
inv.mapRect(&transformedRect, srcRect);
}
}
static bool can_ignore_bilerp_constraint(const GrTextureProducer& producer,
const SkRect& srcRect,
const SkMatrix& srcRectToDeviceSpace,
bool isMSAA) {
if (srcRectToDeviceSpace.rectStaysRect()) {
// sampling is axis-aligned
SkRect transformedRect;
srcRectToDeviceSpace.mapRect(&transformedRect, srcRect);
if (has_aligned_samples(srcRect, transformedRect) ||
!may_color_bleed(srcRect, transformedRect, srcRectToDeviceSpace, isMSAA)) {
return true;
}
}
return false;
}
// Draws the given bitmap to the given canvas. The subset of the source bitmap
// identified by src_rect is drawn to the given destination rect. The bitmap
// will be resampled to resample_width * resample_height (this is the size of
// the whole image, not the subset). See shouldResampleBitmap for more.
//
// This does a lot of computation to resample only the portion of the bitmap
// that will only be drawn. This is critical for performance since when we are
// scrolling, for example, we are only drawing a small strip of the image.
// Resampling the whole image every time is very slow, so this speeds up things
// dramatically.
//
// Note: this code is only used when the canvas transformation is limited to
// scaling or translation.
static void drawResampledBitmap(SkCanvas& canvas, SkPaint& paint, const NativeImageSkia& bitmap, const SkIRect& srcIRect, const SkRect& destRect)
{
#if PLATFORM(CHROMIUM)
TRACE_EVENT0("skia", "drawResampledBitmap");
#endif
// Apply forward transform to destRect to estimate required size of
// re-sampled bitmap, and use only in calls required to resize, or that
// check for the required size.
SkRect destRectTransformed;
canvas.getTotalMatrix().mapRect(&destRectTransformed, destRect);
SkIRect destRectTransformedRounded;
destRectTransformed.round(&destRectTransformedRounded);
// Compute the visible portion of our rect.
SkRect destRectVisibleSubset;
ClipRectToCanvas(canvas, destRect, &destRectVisibleSubset);
// ClipRectToCanvas often overshoots, resulting in a larger region than our
// original destRect. Intersecting gets us back inside.
if (!destRectVisibleSubset.intersect(destRect))
return; // Nothing visible in destRect.
// Compute the image-relative (bitmap space) subset.
SkRect destBitmapSubset = destRectVisibleSubset;
destBitmapSubset.offset(-destRect.x(), -destRect.y());
// Scale the subset to the requested size. The canvas scale can be negative,
// but the resampling code is only interested in positive scaling in its normal space.
SkMatrix subsetTransform;
subsetTransform.setScale(SkScalarAbs(canvas.getTotalMatrix().getScaleX()),
SkScalarAbs(canvas.getTotalMatrix().getScaleY()));
SkRect destBitmapSubsetTransformed;
subsetTransform.mapRect(&destBitmapSubsetTransformed, destBitmapSubset);
SkIRect destBitmapSubsetTransformedRounded;
destBitmapSubsetTransformed.round(&destBitmapSubsetTransformedRounded);
// Transforms above plus rounding may cause destBitmapSubsetTransformedRounded
// to go outside the image, so need to clip to avoid problems.
if (!destBitmapSubsetTransformedRounded.intersect(
0, 0, destRectTransformedRounded.width(), destRectTransformedRounded.height()))
return; // Image is not visible.
SkBitmap resampled = bitmap.resizedBitmap(srcIRect,
destRectTransformedRounded.width(),
destRectTransformedRounded.height(),
destBitmapSubsetTransformedRounded);
canvas.drawBitmapRect(resampled, 0, destRectVisibleSubset, &paint);
}
void SkConservativeClip::opRect(const SkRect& localRect, const SkMatrix& ctm,
const SkIRect& devBounds, SkRegion::Op op, bool doAA) {
SkIRect ir;
switch (mutate_conservative_op(&op, false)) {
case kDoNothing_MutateResult:
return;
case kReplaceClippedAgainstGlobalBounds_MutateResult:
ir = devBounds;
break;
case kContinue_MutateResult: {
SkRect devRect;
ctm.mapRect(&devRect, localRect);
ir = doAA ? devRect.roundOut() : devRect.round();
} break;
}
this->opIRect(ir, op);
}
std::unique_ptr<GrDrawOp> MakeAAFillWithLocalRect(GrContext* context,
GrPaint&& paint,
const SkMatrix& viewMatrix,
const SkRect& rect,
const SkRect& localRect) {
if (!view_matrix_ok_for_aa_fill_rect(viewMatrix)) {
return nullptr;
}
SkRect devRect;
viewMatrix.mapRect(&devRect, rect);
SkMatrix localMatrix;
if (!localMatrix.setRectToRect(rect, localRect, SkMatrix::kFill_ScaleToFit)) {
return nullptr;
}
return AAFillRectOp::Make(context, std::move(paint), viewMatrix, rect, devRect,
&localMatrix, nullptr);
}
void SkConservativeClip::opPath(const SkPath& path, const SkMatrix& ctm, const SkIRect& devBounds,
SkRegion::Op op, bool doAA) {
SkIRect ir;
switch (mutate_conservative_op(&op, path.isInverseFillType())) {
case kDoNothing_MutateResult:
return;
case kReplaceClippedAgainstGlobalBounds_MutateResult:
ir = devBounds;
break;
case kContinue_MutateResult: {
SkRect bounds = path.getBounds();
ctm.mapRect(&bounds);
ir = bounds.roundOut();
break;
}
}
return this->opIRect(ir, op);
}
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;
}
void GradientGeneratedImage::draw(SkCanvas* canvas,
const SkPaint& paint,
const FloatRect& destRect,
const FloatRect& srcRect,
RespectImageOrientationEnum,
ImageClampingMode) {
SkRect visibleSrcRect = srcRect;
if (!visibleSrcRect.intersect(
SkRect::MakeIWH(m_size.width(), m_size.height())))
return;
const SkMatrix transform =
SkMatrix::MakeRectToRect(srcRect, destRect, SkMatrix::kFill_ScaleToFit);
SkRect visibleDestRect;
transform.mapRect(&visibleDestRect, visibleSrcRect);
SkPaint gradientPaint(paint);
m_gradient->applyToPaint(gradientPaint, transform);
canvas->drawRect(visibleDestRect, gradientPaint);
}
// FIXME: Remove this code when SkCanvas accepts SkRect as source rectangle.
// See crbug.com/117597 for background.
//
// WebKit wants to draw a sub-rectangle (FloatRect) in a bitmap and scale it to
// another FloatRect. However Skia only allows bitmap to be addressed by a
// IntRect. This function computes the appropriate IntRect that encloses the
// source rectangle and the corresponding enclosing destination rectangle,
// while maintaining the scale factor.
//
// |srcRect| is the source rectangle in the bitmap. Return true if fancy
// alignment is required. User of this function needs to clip to |dstRect|.
// Return false if clipping is not needed.
//
// |dstRect| is the input rectangle that |srcRect| is scaled to.
//
// |outSrcRect| and |outDstRect| are the corresponding output rectangles.
//
// ALGORITHM
//
// The objective is to (a) find an enclosing IntRect for the source rectangle
// and (b) the corresponding FloatRect in destination space.
//
// These are the steps performed:
//
// 1. IntRect enclosingSrcRect = enclosingIntRect(srcRect)
//
// Compute the enclosing IntRect for |srcRect|. This ensures the bitmap
// image is addressed with integer boundaries.
//
// 2. FloatRect enclosingDestRect = mapSrcToDest(enclosingSrcRect)
//
// Map the enclosing source rectangle to destination coordinate space.
//
// The output will be enclosingSrcRect and enclosingDestRect from the
// algorithm above.
static bool computeBitmapDrawRects(const SkISize& bitmapSize, const SkRect& srcRect, const SkRect& dstRect, SkIRect* outSrcRect, SkRect* outDstRect)
{
if (areBoundariesIntegerAligned(srcRect)) {
*outSrcRect = roundedIntRect(srcRect);
*outDstRect = dstRect;
return false;
}
SkIRect bitmapRect = SkIRect::MakeSize(bitmapSize);
SkIRect enclosingSrcRect = enclosingIntRect(srcRect);
enclosingSrcRect.intersect(bitmapRect); // Clip to bitmap rectangle.
SkRect enclosingDstRect;
enclosingDstRect.set(enclosingSrcRect);
SkMatrix transform;
transform.setRectToRect(srcRect, dstRect, SkMatrix::kFill_ScaleToFit);
transform.mapRect(&enclosingDstRect);
*outSrcRect = enclosingSrcRect;
*outDstRect = enclosingDstRect;
return true;
}
// This function is used to scale an image and extract a scaled fragment.
//
// ALGORITHM
//
// Because the scaled image size has to be integers, we approximate the real
// scale with the following formula (only X direction is shown):
//
// scaledImageWidth = round(scaleX * imageRect.width())
// approximateScaleX = scaledImageWidth / imageRect.width()
//
// With this method we maintain a constant scale factor among fragments in
// the scaled image. This allows fragments to stitch together to form the
// full scaled image. The downside is there will be a small difference
// between |scaleX| and |approximateScaleX|.
//
// A scaled image fragment is identified by:
//
// - Scaled image size
// - Scaled image fragment rectangle (IntRect)
//
// Scaled image size has been determined and the next step is to compute the
// rectangle for the scaled image fragment which needs to be an IntRect.
//
// scaledSrcRect = srcRect * (approximateScaleX, approximateScaleY)
// enclosingScaledSrcRect = enclosingIntRect(scaledSrcRect)
//
// Finally we extract the scaled image fragment using
// (scaledImageSize, enclosingScaledSrcRect).
//
static SkBitmap extractScaledImageFragment(const NativeImageSkia& bitmap, const SkRect& srcRect, float scaleX, float scaleY, SkRect* scaledSrcRect, SkIRect* enclosingScaledSrcRect)
{
SkISize imageSize = SkISize::Make(bitmap.bitmap().width(), bitmap.bitmap().height());
SkISize scaledImageSize = SkISize::Make(clampToInteger(roundf(imageSize.width() * scaleX)),
clampToInteger(roundf(imageSize.height() * scaleY)));
SkRect imageRect = SkRect::MakeWH(imageSize.width(), imageSize.height());
SkRect scaledImageRect = SkRect::MakeWH(scaledImageSize.width(), scaledImageSize.height());
SkMatrix scaleTransform;
scaleTransform.setRectToRect(imageRect, scaledImageRect, SkMatrix::kFill_ScaleToFit);
scaleTransform.mapRect(scaledSrcRect, srcRect);
scaledSrcRect->intersect(scaledImageRect);
*enclosingScaledSrcRect = enclosingIntRect(*scaledSrcRect);
// |enclosingScaledSrcRect| can be larger than |scaledImageSize| because
// of float inaccuracy so clip to get inside.
enclosingScaledSrcRect->intersect(SkIRect::MakeSize(scaledImageSize));
return bitmap.resizedBitmap(scaledImageSize, *enclosingScaledSrcRect);
}
static bool legacy_shader_can_handle(const SkMatrix& inv) {
if (!inv.isScaleTranslate()) {
return false;
}
// legacy code uses SkFixed 32.32, so ensure the inverse doesn't map device coordinates
// out of range.
const SkScalar max_dev_coord = 32767.0f;
SkRect src;
SkAssertResult(inv.mapRect(&src, SkRect::MakeWH(max_dev_coord, max_dev_coord)));
// take 1/4 of max signed 32bits so we have room to subtract local values
const SkScalar max_fixed32dot32 = SK_MaxS32 * 0.25f;
if (!SkRect::MakeLTRB(-max_fixed32dot32, -max_fixed32dot32,
max_fixed32dot32, max_fixed32dot32).contains(src)) {
return false;
}
// legacy shader impl should be able to handle these matrices
return true;
}
void GrAARectRenderer::fillAANestedRects(GrDrawTarget* target,
GrDrawState* drawState,
GrColor color,
const SkRect rects[2],
const SkMatrix& combinedMatrix) {
SkASSERT(combinedMatrix.rectStaysRect());
SkASSERT(!rects[1].isEmpty());
SkRect devOutside, devOutsideAssist, devInside;
combinedMatrix.mapRect(&devOutside, rects[0]);
// can't call mapRect for devInside since it calls sort
combinedMatrix.mapPoints((SkPoint*)&devInside, (const SkPoint*)&rects[1], 2);
if (devInside.isEmpty()) {
this->fillAARect(target, drawState, color, devOutside, SkMatrix::I(), devOutside);
return;
}
this->geometryStrokeAARect(target, drawState, color, devOutside, devOutsideAssist, devInside,
true);
}
// This function is a mirror of SkCanvas::getClipBounds except that it does
// not outset the edge of the clip to account for anti-aliasing. There is
// a skia bug to investigate pushing this logic into back into skia.
// (see https://code.google.com/p/skia/issues/detail?id=1303)
bool SkiaCanvas::getClipBounds(SkRect* outRect) const {
SkIRect ibounds;
if (!mCanvas->getClipDeviceBounds(&ibounds)) {
return false;
}
SkMatrix inverse;
// if we can't invert the CTM, we can't return local clip bounds
if (!mCanvas->getTotalMatrix().invert(&inverse)) {
if (outRect) {
outRect->setEmpty();
}
return false;
}
if (NULL != outRect) {
SkRect r = SkRect::Make(ibounds);
inverse.mapRect(outRect, r);
}
return true;
}
void drawClippedBitmap(SkCanvas* canvas, const SkBitmap& bitmap, const SkPaint& paint, SkScalar scale, const SkIRect& cropRect) {
canvas->save();
SkRect clipRect = SkRect::MakeWH(
SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height()));
canvas->clipRect(clipRect);
canvas->scale(scale, scale);
canvas->drawBitmap(bitmap, 0, 0, &paint);
canvas->restore();
SkPaint strokePaint;
strokePaint.setStyle(SkPaint::kStroke_Style);
strokePaint.setColor(SK_ColorRED);
// Draw a boundary rect around the intersection of the clip rect
// and crop rect.
SkMatrix scaleMatrix;
scaleMatrix.setScale(scale, scale);
SkRect cropRectFloat;
scaleMatrix.mapRect(&cropRectFloat, SkRect::Make(cropRect));
clipRect.intersect(cropRectFloat);
canvas->drawRect(clipRect, strokePaint);
}
void SkGLDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
TRACE_DRAW("coreDrawPaint", this, draw);
AutoPaintShader shader(this, paint);
SkGLVertex vertex[4];
const SkGLVertex* texs = shader.useTex() ? vertex : NULL;
// set vert to be big enough to fill the space, but not super-huge, to we
// don't overflow fixed-point implementations
{
SkRect r;
r.set(this->clip().getBounds());
SkMatrix inverse;
if (draw.fMatrix->invert(&inverse)) {
inverse.mapRect(&r);
}
vertex->setRectFan(r);
}
SkGL::DrawVertices(4, GL_TRIANGLE_FAN, vertex, texs, NULL, NULL,
this->updateMatrixClip());
}
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;
}
bool SkRasterClip::op(const SkRect& localRect, const SkMatrix& matrix, const SkIRect& devBounds,
SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
SkRect devRect;
const bool isScaleTrans = matrix.isScaleTranslate();
if (!isScaleTrans) {
SkPath path;
path.addRect(localRect);
path.setIsVolatile(true);
return this->op(path, matrix, devBounds, op, doAA);
}
matrix.mapRect(&devRect, localRect);
if (fIsBW && doAA) {
// check that the rect really needs aa, or is it close enought to
// integer boundaries that we can just treat it as a BW rect?
if (nearly_integral(devRect.fLeft) && nearly_integral(devRect.fTop) &&
nearly_integral(devRect.fRight) && nearly_integral(devRect.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
devRect.round(&ir);
this->applyClipRestriction(op, &ir);
(void)fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
this->applyClipRestriction(op, &devRect);
(void)fAA.op(devRect, op, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
void GradientGeneratedImage::draw(SkCanvas* canvas,
const SkPaint& paint,
const FloatRect& destRect,
const FloatRect& srcRect,
RespectImageOrientationEnum,
ImageClampingMode,
const ColorBehavior& colorBehavior) {
// TODO(ccameron): This function should not ignore |colorBehavior|.
// https://crbug.com/672306
SkRect visibleSrcRect = srcRect;
if (!visibleSrcRect.intersect(
SkRect::MakeIWH(m_size.width(), m_size.height())))
return;
const SkMatrix transform =
SkMatrix::MakeRectToRect(srcRect, destRect, SkMatrix::kFill_ScaleToFit);
SkRect visibleDestRect;
transform.mapRect(&visibleDestRect, visibleSrcRect);
SkPaint gradientPaint(paint);
m_gradient->applyToPaint(gradientPaint, transform);
canvas->drawRect(visibleDestRect, gradientPaint);
}
DEFINE_BATCH_CLASS_ID
AAFlatteningConvexPathBatch(GrColor color,
const SkMatrix& viewMatrix,
const SkPath& path,
SkScalar strokeWidth,
SkPaint::Join join,
SkScalar miterLimit) : INHERITED(ClassID()) {
fGeoData.emplace_back(Geometry{color, viewMatrix, path, strokeWidth, join, miterLimit});
// compute bounds
fBounds = path.getBounds();
SkScalar w = strokeWidth;
if (w > 0) {
w /= 2;
// If the half stroke width is < 1 then we effectively fallback to bevel joins.
if (SkPaint::kMiter_Join == join && w > 1.f) {
w *= miterLimit;
}
fBounds.outset(w, w);
}
viewMatrix.mapRect(&fBounds);
}
TessellatingPathBatch(const GrColor& color,
const SkPath& path,
const GrStyle& style,
const SkMatrix& viewMatrix,
const SkRect& clipBounds)
: INHERITED(ClassID())
, fColor(color)
, fPath(path)
, fStyle(style)
, fViewMatrix(viewMatrix) {
const SkRect& pathBounds = path.getBounds();
fClipBounds = clipBounds;
// Because the clip bounds are used to add a contour for inverse fills, they must also
// include the path bounds.
fClipBounds.join(pathBounds);
if (path.isInverseFillType()) {
fBounds = fClipBounds;
} else {
fBounds = path.getBounds();
}
style.adjustBounds(&fBounds, fBounds);
viewMatrix.mapRect(&fBounds);
}
static bool apply_aa_to_rect(GrDrawTarget* target,
GrPipelineBuilder* pipelineBuilder,
SkRect* devBoundRect,
const SkRect& rect,
SkScalar strokeWidth,
const SkMatrix& combinedMatrix,
GrColor color) {
if (pipelineBuilder->getRenderTarget()->isUnifiedMultisampled() ||
!combinedMatrix.preservesAxisAlignment()) {
return false;
}
combinedMatrix.mapRect(devBoundRect, rect);
if (!combinedMatrix.rectStaysRect()) {
return true;
}
if (strokeWidth < 0) {
return !is_irect(*devBoundRect);
}
return true;
}
void GrDrawTarget::drawPath(const GrPath* path, SkPath::FillType fill) {
// TODO: extract portions of checkDraw that are relevant to path rendering.
SkASSERT(NULL != path);
SkASSERT(this->caps()->pathRenderingSupport());
const GrDrawState* drawState = &getDrawState();
SkRect devBounds;
if (SkPath::IsInverseFillType(fill)) {
devBounds = SkRect::MakeWH(SkIntToScalar(drawState->getRenderTarget()->width()),
SkIntToScalar(drawState->getRenderTarget()->height()));
} else {
devBounds = path->getBounds();
}
SkMatrix viewM = drawState->getViewMatrix();
viewM.mapRect(&devBounds);
GrDeviceCoordTexture dstCopy;
if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
return;
}
this->onDrawPath(path, fill, dstCopy.texture() ? &dstCopy : NULL);
}
void SkImageFilter::CropRect::applyTo(const SkIRect& imageBounds,
const SkMatrix& ctm,
bool embiggen,
SkIRect* cropped) const {
*cropped = imageBounds;
if (fFlags) {
SkRect devCropR;
ctm.mapRect(&devCropR, fRect);
SkIRect devICropR = devCropR.roundOut();
// Compute the left/top first, in case we need to modify the right/bottom for a missing edge
if (fFlags & kHasLeft_CropEdge) {
if (embiggen || devICropR.fLeft > cropped->fLeft) {
cropped->fLeft = devICropR.fLeft;
}
} else {
devICropR.fRight = cropped->fLeft + devICropR.width();
}
if (fFlags & kHasTop_CropEdge) {
if (embiggen || devICropR.fTop > cropped->fTop) {
cropped->fTop = devICropR.fTop;
}
} else {
devICropR.fBottom = cropped->fTop + devICropR.height();
}
if (fFlags & kHasWidth_CropEdge) {
if (embiggen || devICropR.fRight < cropped->fRight) {
cropped->fRight = devICropR.fRight;
}
}
if (fFlags & kHasHeight_CropEdge) {
if (embiggen || devICropR.fBottom < cropped->fBottom) {
cropped->fBottom = devICropR.fBottom;
}
}
}
}
static bool apply_aa_to_rect(GrDrawTarget* target,
GrPipelineBuilder* pipelineBuilder,
SkRect* devBoundRect,
const SkRect& rect,
SkScalar strokeWidth,
const SkMatrix& combinedMatrix,
GrColor color) {
if (pipelineBuilder->getRenderTarget()->isUnifiedMultisampled()) {
return false;
}
#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
if (strokeWidth >= 0) {
#endif
if (!combinedMatrix.preservesAxisAlignment()) {
return false;
}
#if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
} else {
if (!combinedMatrix.preservesRightAngles()) {
return false;
}
}
#endif
combinedMatrix.mapRect(devBoundRect, rect);
if (!combinedMatrix.rectStaysRect()) {
return true;
}
if (strokeWidth < 0) {
return !is_irect(*devBoundRect);
}
return true;
}
void SkImageFilter::CropRect::applyTo(const SkIRect& imageBounds,
const SkMatrix& ctm,
SkIRect* cropped) const {
*cropped = imageBounds;
if (fFlags) {
SkRect devCropR;
ctm.mapRect(&devCropR, fRect);
const SkIRect devICropR = devCropR.roundOut();
// Compute the left/top first, in case we have to read them to compute right/bottom
if (fFlags & kHasLeft_CropEdge) {
cropped->fLeft = devICropR.fLeft;
}
if (fFlags & kHasTop_CropEdge) {
cropped->fTop = devICropR.fTop;
}
if (fFlags & kHasWidth_CropEdge) {
cropped->fRight = cropped->fLeft + devICropR.width();
}
if (fFlags & kHasHeight_CropEdge) {
cropped->fBottom = cropped->fTop + devICropR.height();
}
}
}