The Tor Browser: comparison gfx/skia/trunk/src/core/SkBBoxRecord.cpp

--1:000000000000
+:e72d570bbb9a
+/*
+* Copyright 2012 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+#include "SkBBoxRecord.h"
+void SkBBoxRecord::drawOval(const SkRect& rect, const SkPaint& paint) {
+if (this->transformBounds(rect, &paint)) {
+INHERITED::drawOval(rect, paint);
+}
+}
+void SkBBoxRecord::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
+if (this->transformBounds(rrect.rect(), &paint)) {
+INHERITED::drawRRect(rrect, paint);
+}
+}
+void SkBBoxRecord::drawRect(const SkRect& rect, const SkPaint& paint) {
+if (this->transformBounds(rect, &paint)) {
+INHERITED::drawRect(rect, paint);
+}
+}
+void SkBBoxRecord::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
+const SkPaint& paint) {
+if (this->transformBounds(outer.rect(), &paint)) {
+this->INHERITED::onDrawDRRect(outer, inner, paint);
+}
+}
+void SkBBoxRecord::drawPath(const SkPath& path, const SkPaint& paint) {
+if (path.isInverseFillType()) {
+// If path is inverse filled, use the current clip bounds as the
+// path's device-space bounding box.
+SkIRect clipBounds;
+if (this->getClipDeviceBounds(&clipBounds)) {
+this->handleBBox(SkRect::Make(clipBounds));
+INHERITED::drawPath(path, paint);
+}
+} else if (this->transformBounds(path.getBounds(), &paint)) {
+INHERITED::drawPath(path, paint);
+}
+}
+void SkBBoxRecord::drawPoints(PointMode mode, size_t count, const SkPoint pts[],
+const SkPaint& paint) {
+SkRect bbox;
+bbox.set(pts, SkToInt(count));
+// Small min width value, just to ensure hairline point bounding boxes aren't empty.
+// Even though we know hairline primitives are drawn one pixel wide, we do not use a
+// minimum of 1 because the playback scale factor is unknown at record time. Later
+// outsets will take care of adding additional padding for antialiasing and rounding out
+// to integer device coordinates, guaranteeing that the rasterized pixels will be included
+// in the computed bounds.
+// Note: The device coordinate outset in SkBBoxHierarchyRecord::handleBBox is currently
+// done in the recording coordinate space, which is wrong.
+// http://code.google.com/p/skia/issues/detail?id=1021
+static const SkScalar kMinWidth = 0.01f;
+SkScalar halfStrokeWidth = SkMaxScalar(paint.getStrokeWidth(), kMinWidth) / 2;
+bbox.outset(halfStrokeWidth, halfStrokeWidth);
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawPoints(mode, count, pts, paint);
+}
+}
+void SkBBoxRecord::drawPaint(const SkPaint& paint) {
+SkRect bbox;
+if (this->getClipBounds(&bbox)) {
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawPaint(paint);
+}
+}
+}
+void SkBBoxRecord::clear(SkColor color) {
+SkISize size = this->getDeviceSize();
+SkRect bbox = {0, 0, SkIntToScalar(size.width()), SkIntToScalar(size.height())};
+this->handleBBox(bbox);
+INHERITED::clear(color);
+}
+void SkBBoxRecord::drawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
+const SkPaint& paint) {
+SkRect bbox;
+paint.measureText(text, byteLength, &bbox);
+SkPaint::FontMetrics metrics;
+paint.getFontMetrics(&metrics);
+// Vertical and aligned text need to be offset
+if (paint.isVerticalText()) {
+SkScalar h = bbox.fBottom - bbox.fTop;
+if (paint.getTextAlign() == SkPaint::kCenter_Align) {
+bbox.fTop    -= h / 2;
+bbox.fBottom -= h / 2;
+}
+// Pad top and bottom with max extents from FontMetrics
+bbox.fBottom += metrics.fBottom;
+bbox.fTop += metrics.fTop;
+} else {
+SkScalar w = bbox.fRight - bbox.fLeft;
+if (paint.getTextAlign() == SkPaint::kCenter_Align) {
+bbox.fLeft  -= w / 2;
+bbox.fRight -= w / 2;
+} else if (paint.getTextAlign() == SkPaint::kRight_Align) {
+bbox.fLeft  -= w;
+bbox.fRight -= w;
+}
+// Set vertical bounds to max extents from font metrics
+bbox.fTop = metrics.fTop;
+bbox.fBottom = metrics.fBottom;
+}
+// Pad horizontal bounds on each side by half of max vertical extents (this is sort of
+// arbitrary, but seems to produce reasonable results, if there were a way of getting max
+// glyph X-extents to pad by, that may be better here, but FontMetrics fXMin and fXMax seem
+// incorrect on most platforms (too small in Linux, never even set in Windows).
+SkScalar pad = (metrics.fBottom - metrics.fTop) / 2;
+bbox.fLeft  -= pad;
+bbox.fRight += pad;
+bbox.fLeft += x;
+bbox.fRight += x;
+bbox.fTop += y;
+bbox.fBottom += y;
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawText(text, byteLength, x, y, paint);
+}
+}
+void SkBBoxRecord::drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
+const SkPaint* paint) {
+SkRect bbox = {left, top, left + bitmap.width(), top + bitmap.height()};
+if (this->transformBounds(bbox, paint)) {
+INHERITED::drawBitmap(bitmap, left, top, paint);
+}
+}
+void SkBBoxRecord::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
+const SkRect& dst, const SkPaint* paint,
+DrawBitmapRectFlags flags) {
+if (this->transformBounds(dst, paint)) {
+INHERITED::drawBitmapRectToRect(bitmap, src, dst, paint, flags);
+}
+}
+void SkBBoxRecord::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& mat,
+const SkPaint* paint) {
+SkMatrix m = mat;
+SkRect bbox = {0, 0, SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height())};
+m.mapRect(&bbox);
+if (this->transformBounds(bbox, paint)) {
+INHERITED::drawBitmapMatrix(bitmap, mat, paint);
+}
+}
+void SkBBoxRecord::drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
+const SkRect& dst, const SkPaint* paint) {
+if (this->transformBounds(dst, paint)) {
+INHERITED::drawBitmapNine(bitmap, center, dst, paint);
+}
+}
+void SkBBoxRecord::drawPosText(const void* text, size_t byteLength,
+const SkPoint pos[], const SkPaint& paint) {
+SkRect bbox;
+bbox.set(pos, paint.countText(text, byteLength));
+SkPaint::FontMetrics metrics;
+paint.getFontMetrics(&metrics);
+bbox.fTop += metrics.fTop;
+bbox.fBottom += metrics.fBottom;
+// pad on left and right by half of max vertical glyph extents
+SkScalar pad = (metrics.fTop - metrics.fBottom) / 2;
+bbox.fLeft += pad;
+bbox.fRight -= pad;
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawPosText(text, byteLength, pos, paint);
+}
+}
+void SkBBoxRecord::drawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
+SkScalar constY, const SkPaint& paint) {
+size_t numChars = paint.countText(text, byteLength);
+if (numChars == 0) {
+return;
+}
+const SkFlatData* flatPaintData = this->getFlatPaintData(paint);
+WriteTopBot(paint, *flatPaintData);
+SkScalar top = flatPaintData->topBot()[0];
+SkScalar bottom = flatPaintData->topBot()[1];
+SkScalar pad = top - bottom;
+SkRect bbox;
+bbox.fLeft = SK_ScalarMax;
+bbox.fRight = SK_ScalarMin;
+for (size_t i = 0; i < numChars; ++i) {
+if (xpos[i] < bbox.fLeft) {
+bbox.fLeft = xpos[i];
+}
+if (xpos[i] > bbox.fRight) {
+bbox.fRight = xpos[i];
+}
+}
+// pad horizontally by max glyph height
+bbox.fLeft  += pad;
+bbox.fRight -= pad;
+bbox.fTop    = top + constY;
+bbox.fBottom = bottom + constY;
+if (!this->transformBounds(bbox, &paint)) {
+return;
+}
+// This is the equivalent of calling:
+//  INHERITED::drawPosTextH(text, byteLength, xpos, constY, paint);
+// but we filled our flat paint beforehand so that we could get font metrics.
+drawPosTextHImpl(text, byteLength, xpos, constY, paint, flatPaintData);
+}
+void SkBBoxRecord::drawSprite(const SkBitmap& bitmap, int left, int top,
+const SkPaint* paint) {
+SkRect bbox;
+bbox.set(SkIRect::MakeXYWH(left, top, bitmap.width(), bitmap.height()));
+this->handleBBox(bbox); // directly call handleBBox, matrix is ignored
+INHERITED::drawSprite(bitmap, left, top, paint);
+}
+void SkBBoxRecord::drawTextOnPath(const void* text, size_t byteLength,
+const SkPath& path, const SkMatrix* matrix,
+const SkPaint& paint) {
+SkRect bbox = path.getBounds();
+SkPaint::FontMetrics metrics;
+paint.getFontMetrics(&metrics);
+// pad out all sides by the max glyph height above baseline
+SkScalar pad = metrics.fTop;
+bbox.fLeft += pad;
+bbox.fRight -= pad;
+bbox.fTop += pad;
+bbox.fBottom -= pad;
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawTextOnPath(text, byteLength, path, matrix, paint);
+}
+}
+void SkBBoxRecord::drawVertices(VertexMode mode, int vertexCount,
+const SkPoint vertices[], const SkPoint texs[],
+const SkColor colors[], SkXfermode* xfer,
+const uint16_t indices[], int indexCount,
+const SkPaint& paint) {
+SkRect bbox;
+bbox.set(vertices, vertexCount);
+if (this->transformBounds(bbox, &paint)) {
+INHERITED::drawVertices(mode, vertexCount, vertices, texs,
+colors, xfer, indices, indexCount, paint);
+}
+}
+void SkBBoxRecord::drawPicture(SkPicture& picture) {
+if (picture.width() > 0 && picture.height() > 0 &&
+this->transformBounds(SkRect::MakeWH(picture.width(), picture.height()), NULL)) {
+INHERITED::drawPicture(picture);
+}
+}
+bool SkBBoxRecord::transformBounds(const SkRect& bounds, const SkPaint* paint) {
+SkRect outBounds = bounds;
+outBounds.sort();
+if (paint) {
+// account for stroking, path effects, shadows, etc
+if (paint->canComputeFastBounds()) {
+SkRect temp;
+outBounds = paint->computeFastBounds(outBounds, &temp);
+} else {
+// set bounds to current clip
+if (!this->getClipBounds(&outBounds)) {
+// current clip is empty
+return false;
+}
+}
+}
+if (!outBounds.isEmpty() && !this->quickReject(outBounds)) {
+this->getTotalMatrix().mapRect(&outBounds);
+this->handleBBox(outBounds);
+return true;
+}
+return false;
+}

The Tor Browser / file comparison

comparison: gfx/skia/trunk/src/core/SkBBoxRecord.cpp

gfx/skia/trunk/src/core/SkBBoxRecord.cpp