Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 17 | #define LOG_TAG "MeasuredParagraph" |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 18 | |
| 19 | #include "ScopedIcuLocale.h" |
| 20 | #include "unicode/locid.h" |
| 21 | #include "unicode/brkiter.h" |
| 22 | #include "utils/misc.h" |
| 23 | #include "utils/Log.h" |
| 24 | #include <nativehelper/ScopedStringChars.h> |
| 25 | #include <nativehelper/ScopedPrimitiveArray.h> |
| 26 | #include <nativehelper/JNIHelp.h> |
| 27 | #include "core_jni_helpers.h" |
| 28 | #include <cstdint> |
| 29 | #include <vector> |
| 30 | #include <list> |
| 31 | #include <algorithm> |
| 32 | |
| 33 | #include "SkPaint.h" |
| 34 | #include "SkTypeface.h" |
| 35 | #include <hwui/MinikinSkia.h> |
| 36 | #include <hwui/MinikinUtils.h> |
| 37 | #include <hwui/Paint.h> |
| 38 | #include <minikin/FontCollection.h> |
| 39 | #include <minikin/AndroidLineBreakerHelper.h> |
| 40 | #include <minikin/MinikinFont.h> |
| 41 | |
| 42 | namespace android { |
| 43 | |
| 44 | static inline minikin::MeasuredTextBuilder* toBuilder(jlong ptr) { |
| 45 | return reinterpret_cast<minikin::MeasuredTextBuilder*>(ptr); |
| 46 | } |
| 47 | |
| 48 | static inline Paint* toPaint(jlong ptr) { |
| 49 | return reinterpret_cast<Paint*>(ptr); |
| 50 | } |
| 51 | |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 52 | static inline minikin::MeasuredText* toMeasuredParagraph(jlong ptr) { |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 53 | return reinterpret_cast<minikin::MeasuredText*>(ptr); |
| 54 | } |
| 55 | |
| 56 | template<typename Ptr> static inline jlong toJLong(Ptr ptr) { |
| 57 | return reinterpret_cast<jlong>(ptr); |
| 58 | } |
| 59 | |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 60 | static void releaseMeasuredParagraph(jlong measuredTextPtr) { |
| 61 | delete toMeasuredParagraph(measuredTextPtr); |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | // Regular JNI |
| 65 | static jlong nInitBuilder() { |
| 66 | return toJLong(new minikin::MeasuredTextBuilder()); |
| 67 | } |
| 68 | |
| 69 | // Regular JNI |
| 70 | static void nAddStyleRun(JNIEnv* /* unused */, jclass /* unused */, jlong builderPtr, |
| 71 | jlong paintPtr, jint start, jint end, jboolean isRtl) { |
| 72 | Paint* paint = toPaint(paintPtr); |
| 73 | const Typeface* typeface = Typeface::resolveDefault(paint->getAndroidTypeface()); |
| 74 | minikin::MinikinPaint minikinPaint = MinikinUtils::prepareMinikinPaint(paint, typeface); |
| 75 | toBuilder(builderPtr)->addStyleRun(start, end, std::move(minikinPaint), |
| 76 | typeface->fFontCollection, isRtl); |
| 77 | } |
| 78 | |
| 79 | // Regular JNI |
| 80 | static void nAddReplacementRun(JNIEnv* /* unused */, jclass /* unused */, jlong builderPtr, |
| 81 | jlong paintPtr, jint start, jint end, jfloat width) { |
| 82 | toBuilder(builderPtr)->addReplacementRun(start, end, width, |
| 83 | toPaint(paintPtr)->getMinikinLocaleListId()); |
| 84 | } |
| 85 | |
| 86 | // Regular JNI |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 87 | static jlong nBuildNativeMeasuredParagraph(JNIEnv* env, jclass /* unused */, jlong builderPtr, |
Seigo Nonaka | 783f961 | 2018-01-20 12:11:13 -0800 | [diff] [blame] | 88 | jcharArray javaText, jboolean computeHyphenation, |
| 89 | jboolean computeLayout) { |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 90 | ScopedCharArrayRO text(env, javaText); |
| 91 | const minikin::U16StringPiece textBuffer(text.get(), text.size()); |
| 92 | |
| 93 | // Pass the ownership to Java. |
Seigo Nonaka | 783f961 | 2018-01-20 12:11:13 -0800 | [diff] [blame] | 94 | return toJLong(toBuilder(builderPtr)->build(textBuffer, computeHyphenation, |
| 95 | computeLayout).release()); |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | // Regular JNI |
| 99 | static void nFreeBuilder(JNIEnv* env, jclass /* unused */, jlong builderPtr) { |
| 100 | delete toBuilder(builderPtr); |
| 101 | } |
| 102 | |
| 103 | // CriticalNative |
Seigo Nonaka | 783f961 | 2018-01-20 12:11:13 -0800 | [diff] [blame] | 104 | static jfloat nGetWidth(jlong ptr, jint start, jint end) { |
| 105 | minikin::MeasuredText* mt = toMeasuredParagraph(ptr); |
| 106 | float r = 0.0f; |
| 107 | for (int i = start; i < end; ++i) { |
| 108 | r += mt->widths[i]; |
| 109 | } |
| 110 | return r; |
| 111 | } |
| 112 | |
| 113 | // CriticalNative |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 114 | static jlong nGetReleaseFunc() { |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 115 | return toJLong(&releaseMeasuredParagraph); |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | static const JNINativeMethod gMethods[] = { |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 119 | // MeasuredParagraphBuilder native functions. |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 120 | {"nInitBuilder", "()J", (void*) nInitBuilder}, |
| 121 | {"nAddStyleRun", "(JJIIZ)V", (void*) nAddStyleRun}, |
| 122 | {"nAddReplacementRun", "(JJIIF)V", (void*) nAddReplacementRun}, |
Seigo Nonaka | 783f961 | 2018-01-20 12:11:13 -0800 | [diff] [blame] | 123 | {"nBuildNativeMeasuredParagraph", "(J[CZZ)J", (void*) nBuildNativeMeasuredParagraph}, |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 124 | {"nFreeBuilder", "(J)V", (void*) nFreeBuilder}, |
| 125 | |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 126 | // MeasuredParagraph native functions. |
Seigo Nonaka | 783f961 | 2018-01-20 12:11:13 -0800 | [diff] [blame] | 127 | {"nGetWidth", "(JII)F", (void*) nGetWidth}, // Critical Natives |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 128 | {"nGetReleaseFunc", "()J", (void*) nGetReleaseFunc}, // Critical Natives |
| 129 | }; |
| 130 | |
Seigo Nonaka | 9d3bd08 | 2018-01-11 10:02:12 -0800 | [diff] [blame] | 131 | int register_android_text_MeasuredParagraph(JNIEnv* env) { |
| 132 | return RegisterMethodsOrDie(env, "android/text/MeasuredParagraph", gMethods, NELEM(gMethods)); |
Seigo Nonaka | 6f1868b | 2017-12-01 16:24:19 -0800 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | } |