Implement getTransparentRegion() using SkLatticeIter (7de73858) · Commits · e / os / android_frameworks_base

core/jni/android/graphics/NinePatch.cpp

+30 −8

Original line number	Diff line number	Diff line
		@@ -26,10 +26,10 @@
		#include <ResourceCache.h>

		#include "SkCanvas.h"
		#include "SkLatticeIter.h"
		#include "SkRegion.h"
		#include "GraphicsJNI.h"

		#include "utils/NinePatch.h"
		#include "NinePatchUtils.h"

		#include "JNIHelp.h"
		#include "core_jni_helpers.h"
		@@ -88,18 +88,40 @@ public:
		}

		static jlong getTransparentRegion(JNIEnv* env, jobject, jobject jbitmap,
		jlong chunkHandle, jobject boundsRect) {
		jlong chunkHandle, jobject dstRect) {
		Res_png_9patch* chunk = reinterpret_cast<Res_png_9patch*>(chunkHandle);
		SkASSERT(chunk);
		SkASSERT(boundsRect);

		SkBitmap bitmap;
		GraphicsJNI::getSkBitmap(env, jbitmap, &bitmap);
		SkRect bounds;
		GraphicsJNI::jrect_to_rect(env, boundsRect, &bounds);
		SkRect dst;
		GraphicsJNI::jrect_to_rect(env, dstRect, &dst);

		SkCanvas::Lattice lattice;
		SkIRect src = SkIRect::MakeWH(bitmap.width(), bitmap.height());
		lattice.fBounds = &src;
		NinePatchUtils::SetLatticeDivs(&lattice, *chunk, bitmap.width(), bitmap.height());
		lattice.fFlags = nullptr;

		SkRegion* region = nullptr;
		if (SkLatticeIter::Valid(bitmap.width(), bitmap.height(), lattice)) {
		SkLatticeIter iter(lattice, dst);
		if (iter.numRectsToDraw() == chunk->numColors) {
		SkRect dummy;
		SkRect iterDst;
		int index = 0;
		while (iter.next(&dummy, &iterDst)) {
		if (0 == chunk->getColors()[index++] && !iterDst.isEmpty()) {
		if (!region) {
		region = new SkRegion();
		}

		SkRegion* region = NULL;
		NinePatch::Draw(NULL, bounds, bitmap, *chunk, NULL, &region);
		region->op(iterDst.round(), SkRegion::kUnion_Op);
		}
		}
		}
		}

		return reinterpret_cast<jlong>(region);
		}

libs/hwui/Android.mk

+0 −1

Original line number	Diff line number	Diff line
		@@ -38,7 +38,6 @@ hwui_src_files := \
		utils/Blur.cpp \
		utils/GLUtils.cpp \
		utils/LinearAllocator.cpp \
		utils/NinePatchImpl.cpp \
		utils/StringUtils.cpp \
		utils/TestWindowContext.cpp \
		utils/VectorDrawableUtils.cpp \

libs/hwui/NinePatchUtils.h

0 → 100644

+38 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2016 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		namespace android {
		namespace NinePatchUtils {

		static inline void SetLatticeDivs(SkCanvas::Lattice* lattice, const Res_png_9patch& chunk,
		int width, int height) {
		lattice->fXCount = chunk.numXDivs;
		lattice->fYCount = chunk.numYDivs;
		lattice->fXDivs = chunk.getXDivs();
		lattice->fYDivs = chunk.getYDivs();

		// We'll often see ninepatches where the last div is equal to the width or height.
		// This doesn't provide any additional information and is not supported by Skia.
		if (lattice->fXCount > 0 && width == lattice->fXDivs[lattice->fXCount - 1]) {
		lattice->fXCount--;
		}
		if (lattice->fYCount > 0 && height == lattice->fYDivs[lattice->fYCount - 1]) {
		lattice->fYCount--;
		}
		}

		}; // namespace NinePatchUtils
		}; // namespace android

libs/hwui/RecordingCanvas.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -26,7 +26,6 @@
		#include "hwui/Canvas.h"
		#include "utils/LinearAllocator.h"
		#include "utils/Macros.h"
		#include "utils/NinePatch.h"

		#include <SkDrawFilter.h>
		#include <SkPaint.h>

libs/hwui/SkiaCanvas.cpp

+2 −18

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include "SkiaCanvas.h"

		#include "CanvasProperty.h"
		#include "NinePatchUtils.h"
		#include "VectorDrawable.h"
		#include "hwui/Bitmap.h"
		#include "hwui/MinikinUtils.h"
		@@ -670,23 +671,6 @@ void SkiaCanvas::drawBitmapMesh(Bitmap& hwuiBitmap, int meshWidth, int meshHeigh
		indexCount, tmpPaint);
		}

		static inline void set_lattice_divs(SkCanvas::Lattice* lattice, const Res_png_9patch& chunk,
		int width, int height) {
		lattice->fXCount = chunk.numXDivs;
		lattice->fYCount = chunk.numYDivs;
		lattice->fXDivs = chunk.getXDivs();
		lattice->fYDivs = chunk.getYDivs();

		// We'll often see ninepatches where the last div is equal to the width or height.
		// This doesn't provide any additional information and is not supported by Skia.
		if (lattice->fXCount > 0 && width == lattice->fXDivs[lattice->fXCount - 1]) {
		lattice->fXCount--;
		}
		if (lattice->fYCount > 0 && height == lattice->fYDivs[lattice->fYCount - 1]) {
		lattice->fYCount--;
		}
		}

		static inline int num_distinct_rects(const SkCanvas::Lattice& lattice) {
		int xRects;
		if (lattice.fXCount > 0) {
		@@ -750,7 +734,7 @@ void SkiaCanvas::drawNinePatch(Bitmap& hwuiBitmap, const Res_png_9patch& chunk,
		hwuiBitmap.getSkBitmap(&bitmap);

		SkCanvas::Lattice lattice;
		set_lattice_divs(&lattice, chunk, bitmap.width(), bitmap.height());
		NinePatchUtils::SetLatticeDivs(&lattice, chunk, bitmap.width(), bitmap.height());

		lattice.fFlags = nullptr;
		int numFlags = 0;