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/* libs/android_runtime/android/graphics/Paint.cpp
**
** Copyright 2006, 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.
*/
#include <hwui/BlurDrawLooper.h>
#include <hwui/MinikinSkia.h>
#include <hwui/MinikinUtils.h>
#include <hwui/Paint.h>
#include <hwui/Typeface.h>
#include <minikin/GraphemeBreak.h>
#include <minikin/LocaleList.h>
#include <minikin/Measurement.h>
#include <minikin/MinikinPaint.h>
#include <nativehelper/ScopedPrimitiveArray.h>
#include <nativehelper/ScopedStringChars.h>
#include <nativehelper/ScopedUtfChars.h>
#include <unicode/utf16.h>
#include <utils/Log.h>
#include <cassert>
#include <cstring>
#include <memory>
#include <string_view>
#include <vector>
#include "ColorFilter.h"
#include "GraphicsJNI.h"
#include "SkBlendMode.h"
#include "SkColorFilter.h"
#include "SkColorSpace.h"
#include "SkFont.h"
#include "SkFontMetrics.h"
#include "SkFontTypes.h"
#include "SkMaskFilter.h"
#include "SkPath.h"
#include "SkPathEffect.h"
#include "SkPathUtils.h"
#include "SkShader.h"
#include "unicode/uloc.h"
#include "utils/Blur.h"
namespace android {
namespace {
void copyMinikinRectToSkRect(const minikin::MinikinRect& minikinRect, SkRect* skRect) {
skRect->fLeft = minikinRect.mLeft;
skRect->fTop = minikinRect.mTop;
skRect->fRight = minikinRect.mRight;
skRect->fBottom = minikinRect.mBottom;
}
} // namespace
static void getPosTextPath(const SkFont& font, const uint16_t glyphs[], int count,
const SkPoint pos[], SkPath* dst) {
dst->reset();
struct Rec {
SkPath* fDst;
const SkPoint* fPos;
} rec = { dst, pos };
font.getPaths(glyphs, count, [](const SkPath* src, const SkMatrix& mx, void* ctx) {
Rec* rec = (Rec*)ctx;
if (src) {
SkMatrix tmp(mx);
tmp.postTranslate(rec->fPos->fX, rec->fPos->fY);
rec->fDst->addPath(*src, tmp);
}
rec->fPos += 1;
}, &rec);
}
namespace PaintGlue {
enum MoveOpt {
AFTER, AT_OR_AFTER, BEFORE, AT_OR_BEFORE, AT
};
static void deletePaint(Paint* paint) {
delete paint;
}
static jlong getNativeFinalizer(JNIEnv*, jobject) {
return static_cast<jlong>(reinterpret_cast<uintptr_t>(&deletePaint));
}
static jlong init(JNIEnv* env, jobject) {
return reinterpret_cast<jlong>(new Paint);
}
static jlong initWithPaint(JNIEnv* env, jobject clazz, jlong paintHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
Paint* obj = new Paint(*paint);
return reinterpret_cast<jlong>(obj);
}
static int breakText(JNIEnv* env, const Paint& paint, const Typeface* typeface,
const jchar text[], int count, float maxWidth, jint bidiFlags, jfloatArray jmeasured,
const bool forwardScan) {
size_t measuredCount = 0;
float measured = 0;
std::unique_ptr<float[]> advancesArray(new float[count]);
MinikinUtils::measureText(&paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text, 0,
count, count, advancesArray.get(), nullptr);
for (int i = 0; i < count; i++) {
// traverse in the given direction
int index = forwardScan ? i : (count - i - 1);
float width = advancesArray[index];
if (measured + width > maxWidth) {
break;
}
// properly handle clusters when scanning backwards
if (forwardScan || width != 0.0f) {
measuredCount = i + 1;
}
measured += width;
}
if (jmeasured && env->GetArrayLength(jmeasured) > 0) {
AutoJavaFloatArray autoMeasured(env, jmeasured, 1);
jfloat* array = autoMeasured.ptr();
array[0] = measured;
}
return measuredCount;
}
static jint breakTextC(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray jtext,
jint index, jint count, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) {
NPE_CHECK_RETURN_ZERO(env, jtext);
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
bool forwardTextDirection;
if (count < 0) {
forwardTextDirection = false;
count = -count;
}
else {
forwardTextDirection = true;
}
if ((index < 0) || (index + count > env->GetArrayLength(jtext))) {
doThrowAIOOBE(env);
return 0;
}
const jchar* text = env->GetCharArrayElements(jtext, nullptr);
count = breakText(env, *paint, typeface, text + index, count, maxWidth,
bidiFlags, jmeasuredWidth, forwardTextDirection);
env->ReleaseCharArrayElements(jtext, const_cast<jchar*>(text),
JNI_ABORT);
return count;
}
static jint breakTextS(JNIEnv* env, jobject clazz, jlong paintHandle, jstring jtext,
jboolean forwards, jfloat maxWidth, jint bidiFlags, jfloatArray jmeasuredWidth) {
NPE_CHECK_RETURN_ZERO(env, jtext);
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
int count = env->GetStringLength(jtext);
const jchar* text = env->GetStringChars(jtext, nullptr);
count = breakText(env, *paint, typeface, text, count, maxWidth, bidiFlags, jmeasuredWidth, forwards);
env->ReleaseStringChars(jtext, text);
return count;
}
static jfloat doTextAdvances(JNIEnv *env, Paint *paint, const Typeface* typeface,
const jchar *text, jint start, jint count, jint contextCount, jint bidiFlags,
jfloatArray advances, jint advancesIndex) {
NPE_CHECK_RETURN_ZERO(env, text);
if ((start | count | contextCount | advancesIndex) < 0 || contextCount < count) {
doThrowAIOOBE(env);
return 0;
}
if (count == 0) {
return 0;
}
if (advances) {
size_t advancesLength = env->GetArrayLength(advances);
if ((size_t)(count + advancesIndex) > advancesLength) {
doThrowAIOOBE(env);
return 0;
}
}
std::unique_ptr<jfloat[]> advancesArray;
if (advances) {
advancesArray.reset(new jfloat[count]);
}
const float advance = MinikinUtils::measureText(
paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text, start, count,
contextCount, advancesArray.get(), nullptr);
if (advances) {
env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get());
}
return advance;
}
static jfloat getTextAdvances___CIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
jcharArray text, jint index, jint count, jint contextIndex, jint contextCount,
jint bidiFlags, jfloatArray advances, jint advancesIndex) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
jchar* textArray = env->GetCharArrayElements(text, nullptr);
jfloat result = doTextAdvances(env, paint, typeface, textArray + contextIndex,
index - contextIndex, count, contextCount, bidiFlags, advances, advancesIndex);
env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
return result;
}
static jfloat getTextAdvances__StringIIIII_FI(JNIEnv* env, jobject clazz, jlong paintHandle,
jstring text, jint start, jint end, jint contextStart, jint contextEnd, jint bidiFlags,
jfloatArray advances, jint advancesIndex) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
const jchar* textArray = env->GetStringChars(text, nullptr);
jfloat result = doTextAdvances(env, paint, typeface, textArray + contextStart,
start - contextStart, end - start, contextEnd - contextStart, bidiFlags,
advances, advancesIndex);
env->ReleaseStringChars(text, textArray);
return result;
}
static jint doTextRunCursor(JNIEnv *env, Paint* paint, const Typeface* typeface,
const jchar *text, jint start, jint count, jint dir, jint offset, jint opt) {
minikin::GraphemeBreak::MoveOpt moveOpt = minikin::GraphemeBreak::MoveOpt(opt);
minikin::Bidi bidiFlags = dir == 1 ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
std::unique_ptr<float[]> advancesArray(new float[count]);
MinikinUtils::measureText(paint, bidiFlags, typeface, text, start, count, start + count,
advancesArray.get(), nullptr);
size_t result = minikin::GraphemeBreak::getTextRunCursor(advancesArray.get(), text,
start, count, offset, moveOpt);
return static_cast<jint>(result);
}
static jint getTextRunCursor___C(JNIEnv* env, jobject clazz, jlong paintHandle, jcharArray text,
jint contextStart, jint contextCount, jint dir, jint offset, jint cursorOpt) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
jchar* textArray = env->GetCharArrayElements(text, nullptr);
jint result = doTextRunCursor(env, paint, typeface, textArray,
contextStart, contextCount, dir, offset, cursorOpt);
env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
return result;
}
static jint getTextRunCursor__String(JNIEnv* env, jobject clazz, jlong paintHandle,
jstring text, jint contextStart, jint contextEnd, jint dir, jint offset,
jint cursorOpt) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
const jchar* textArray = env->GetStringChars(text, nullptr);
jint result = doTextRunCursor(env, paint, typeface, textArray,
contextStart, contextEnd - contextStart, dir, offset, cursorOpt);
env->ReleaseStringChars(text, textArray);
return result;
}
class GetTextFunctor {
public:
GetTextFunctor(const minikin::Layout& layout, SkPath* path, jfloat x, jfloat y,
Paint* paint, uint16_t* glyphs, SkPoint* pos)
: layout(layout), path(path), x(x), y(y), paint(paint), glyphs(glyphs), pos(pos) {
}
void operator()(size_t start, size_t end) {
for (size_t i = start; i < end; i++) {
glyphs[i] = layout.getGlyphId(i);
pos[i].fX = x + layout.getX(i);
pos[i].fY = y + layout.getY(i);
}
const SkFont& font = paint->getSkFont();
if (start == 0) {
getPosTextPath(font, glyphs, end, pos, path);
} else {
getPosTextPath(font, glyphs + start, end - start, pos + start, &tmpPath);
path->addPath(tmpPath);
}
}
private:
const minikin::Layout& layout;
SkPath* path;
jfloat x;
jfloat y;
Paint* paint;
uint16_t* glyphs;
SkPoint* pos;
SkPath tmpPath;
};
static void getTextPath(JNIEnv* env, Paint* paint, const Typeface* typeface, const jchar* text,
jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) {
minikin::Layout layout = MinikinUtils::doLayout(
paint, static_cast<minikin::Bidi>(bidiFlags), typeface,
text, count, // text buffer
0, count, // draw range
0, count, // context range
nullptr);
size_t nGlyphs = layout.nGlyphs();
uint16_t* glyphs = new uint16_t[nGlyphs];
SkPoint* pos = new SkPoint[nGlyphs];
x += MinikinUtils::xOffsetForTextAlign(paint, layout);
Paint::Align align = paint->getTextAlign();
paint->setTextAlign(Paint::kLeft_Align);
GetTextFunctor f(layout, path, x, y, paint, glyphs, pos);
MinikinUtils::forFontRun(layout, paint, f);
paint->setTextAlign(align);
delete[] glyphs;
delete[] pos;
}
static void getTextPath___C(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags,
jcharArray text, jint index, jint count, jfloat x, jfloat y, jlong pathHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
const jchar* textArray = env->GetCharArrayElements(text, nullptr);
getTextPath(env, paint, typeface, textArray + index, count, bidiFlags, x, y, path);
env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray), JNI_ABORT);
}
static void getTextPath__String(JNIEnv* env, jobject clazz, jlong paintHandle, jint bidiFlags,
jstring text, jint start, jint end, jfloat x, jfloat y, jlong pathHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
const jchar* textArray = env->GetStringChars(text, nullptr);
getTextPath(env, paint, typeface, textArray + start, end - start, bidiFlags, x, y, path);
env->ReleaseStringChars(text, textArray);
}
static void doTextBounds(JNIEnv* env, const jchar* text, int count, jobject bounds,
const Paint& paint, const Typeface* typeface, jint bidiFlagsInt) {
SkRect r;
SkIRect ir;
minikin::MinikinRect rect;
minikin::Bidi bidiFlags = static_cast<minikin::Bidi>(bidiFlagsInt);
MinikinUtils::getBounds(&paint, bidiFlags, typeface, text, count, &rect);
r.fLeft = rect.mLeft;
r.fTop = rect.mTop;
r.fRight = rect.mRight;
r.fBottom = rect.mBottom;
r.roundOut(&ir);
GraphicsJNI::irect_to_jrect(ir, env, bounds);
}
static void getStringBounds(JNIEnv* env, jobject, jlong paintHandle, jstring text, jint start,
jint end, jint bidiFlags, jobject bounds) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
const jchar* textArray = env->GetStringChars(text, nullptr);
doTextBounds(env, textArray + start, end - start, bounds, *paint, typeface, bidiFlags);
env->ReleaseStringChars(text, textArray);
}
static void getCharArrayBounds(JNIEnv* env, jobject, jlong paintHandle, jcharArray text,
jint index, jint count, jint bidiFlags, jobject bounds) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
const jchar* textArray = env->GetCharArrayElements(text, nullptr);
doTextBounds(env, textArray + index, count, bounds, *paint, typeface, bidiFlags);
env->ReleaseCharArrayElements(text, const_cast<jchar*>(textArray),
JNI_ABORT);
}
// Returns true if the given string is exact one pair of regional indicators.
static bool isFlag(const jchar* str, size_t length) {
const jchar RI_LEAD_SURROGATE = 0xD83C;
const jchar RI_TRAIL_SURROGATE_MIN = 0xDDE6;
const jchar RI_TRAIL_SURROGATE_MAX = 0xDDFF;
if (length != 4) {
return false;
}
if (str[0] != RI_LEAD_SURROGATE || str[2] != RI_LEAD_SURROGATE) {
return false;
}
return RI_TRAIL_SURROGATE_MIN <= str[1] && str[1] <= RI_TRAIL_SURROGATE_MAX &&
RI_TRAIL_SURROGATE_MIN <= str[3] && str[3] <= RI_TRAIL_SURROGATE_MAX;
}
static jboolean layoutContainsNotdef(const minikin::Layout& layout) {
for (size_t i = 0; i < layout.nGlyphs(); i++) {
if (layout.getGlyphId(i) == 0) {
return true;
}
}
return false;
}
// Don't count glyphs that are the recommended "space" glyph and are zero width.
// This logic makes assumptions about HarfBuzz layout, but does correctly handle
// cases where ligatures form and zero width space glyphs are left in as
// placeholders.
static size_t countNonSpaceGlyphs(const minikin::Layout& layout) {
size_t count = 0;
static unsigned int kSpaceGlyphId = 3;
for (size_t i = 0; i < layout.nGlyphs(); i++) {
if (layout.getGlyphId(i) != kSpaceGlyphId || layout.getCharAdvance(i) != 0.0) {
count++;
}
}
return count;
}
static jboolean hasGlyph(JNIEnv *env, jclass, jlong paintHandle, jint bidiFlags,
jstring string) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
ScopedStringChars str(env, string);
/* Start by rejecting unsupported base code point and variation selector pairs. */
size_t nChars = 0;
const uint32_t kStartOfString = 0xFFFFFFFF;
uint32_t prevCp = kStartOfString;
for (size_t i = 0; i < str.size(); i++) {
jchar cu = str[i];
uint32_t cp = cu;
if (U16_IS_TRAIL(cu)) {
// invalid UTF-16, unpaired trailing surrogate
return false;
} else if (U16_IS_LEAD(cu)) {
if (i + 1 == str.size()) {
// invalid UTF-16, unpaired leading surrogate at end of string
return false;
}
i++;
jchar cu2 = str[i];
if (!U16_IS_TRAIL(cu2)) {
// invalid UTF-16, unpaired leading surrogate
return false;
}
cp = U16_GET_SUPPLEMENTARY(cu, cu2);
}
if (prevCp != kStartOfString &&
((0xFE00 <= cp && cp <= 0xFE0F) || (0xE0100 <= cp && cp <= 0xE01EF))) {
bool hasVS = MinikinUtils::hasVariationSelector(typeface, prevCp, cp);
if (!hasVS) {
// No font has a glyph for the code point and variation selector pair.
return false;
} else if (nChars == 1 && i + 1 == str.size()) {
// The string is just a codepoint and a VS, we have an authoritative answer
return true;
}
}
nChars++;
prevCp = cp;
}
minikin::Layout layout = MinikinUtils::doLayout(paint,
static_cast<minikin::Bidi>(bidiFlags), typeface,
str.get(), str.size(), // text buffer
0, str.size(), // draw range
0, str.size(), // context range
nullptr);
size_t nGlyphs = countNonSpaceGlyphs(layout);
if (nGlyphs != 1 && nChars > 1) {
// multiple-character input, and was not a ligature
// TODO: handle ZWJ/ZWNJ characters specially so we can detect certain ligatures
// in joining scripts, such as Arabic and Mongolian.
return false;
}
if (nGlyphs == 0 || layoutContainsNotdef(layout)) {
return false; // The collection doesn't have a glyph.
}
if (nChars == 2 && isFlag(str.get(), str.size())) {
// Some font may have a special glyph for unsupported regional indicator pairs.
// To return false for this case, need to compare the glyph id with the one of ZZ
// since ZZ is reserved for unknown or invalid territory.
// U+1F1FF (REGIONAL INDICATOR SYMBOL LETTER Z) is \uD83C\uDDFF in UTF16.
static const jchar ZZ_FLAG_STR[] = { 0xD83C, 0xDDFF, 0xD83C, 0xDDFF };
minikin::Layout zzLayout = MinikinUtils::doLayout(paint,
static_cast<minikin::Bidi>(bidiFlags), typeface,
ZZ_FLAG_STR, 4, // text buffer
0, 4, // draw range
0, 4, // context range
nullptr);
if (zzLayout.nGlyphs() != 1 || layoutContainsNotdef(zzLayout)) {
// The font collection doesn't have a glyph for unknown flag. Just return true.
return true;
}
return zzLayout.getGlyphId(0) != layout.getGlyphId(0);
}
return true;
}
static jfloat doRunAdvance(JNIEnv* env, const Paint* paint, const Typeface* typeface,
const jchar buf[], jint start, jint count, jint bufSize,
jboolean isRtl, jint offset, jfloatArray advances,
jint advancesIndex, SkRect* drawBounds) {
if (advances) {
size_t advancesLength = env->GetArrayLength(advances);
if ((size_t)(count + advancesIndex) > advancesLength) {
doThrowAIOOBE(env);
return 0;
}
}
minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
minikin::MinikinRect bounds;
if (offset == start + count && advances == nullptr) {
float result =
MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count,
bufSize, nullptr, drawBounds ? &bounds : nullptr);
if (drawBounds) {
copyMinikinRectToSkRect(bounds, drawBounds);
}
return result;
}
std::unique_ptr<float[]> advancesArray(new float[count]);
MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
advancesArray.get(), drawBounds ? &bounds : nullptr);
if (drawBounds) {
copyMinikinRectToSkRect(bounds, drawBounds);
}
float result = minikin::getRunAdvance(advancesArray.get(), buf, start, count, offset);
if (advances) {
minikin::distributeAdvances(advancesArray.get(), buf, start, count);
env->SetFloatArrayRegion(advances, advancesIndex, count, advancesArray.get());
}
return result;
}
static jfloat getRunAdvance___CIIIIZI_F(JNIEnv *env, jclass, jlong paintHandle, jcharArray text,
jint start, jint end, jint contextStart, jint contextEnd, jboolean isRtl, jint offset) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
ScopedCharArrayRO textArray(env, text);
jfloat result = doRunAdvance(env, paint, typeface, textArray.get() + contextStart,
start - contextStart, end - start, contextEnd - contextStart,
isRtl, offset - contextStart, nullptr, 0, nullptr);
return result;
}
static jfloat getRunCharacterAdvance___CIIIIZI_FI_F(JNIEnv* env, jclass, jlong paintHandle,
jcharArray text, jint start, jint end,
jint contextStart, jint contextEnd,
jboolean isRtl, jint offset,
jfloatArray advances, jint advancesIndex,
jobject drawBounds) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
ScopedCharArrayRO textArray(env, text);
SkRect skDrawBounds;
jfloat result = doRunAdvance(env, paint, typeface, textArray.get() + contextStart,
start - contextStart, end - start, contextEnd - contextStart,
isRtl, offset - contextStart, advances, advancesIndex,
drawBounds ? &skDrawBounds : nullptr);
if (drawBounds != nullptr) {
GraphicsJNI::rect_to_jrectf(skDrawBounds, env, drawBounds);
}
return result;
}
static jint doOffsetForAdvance(const Paint* paint, const Typeface* typeface, const jchar buf[],
jint start, jint count, jint bufSize, jboolean isRtl, jfloat advance) {
minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
std::unique_ptr<float[]> advancesArray(new float[count]);
MinikinUtils::measureText(paint, bidiFlags, typeface, buf, start, count, bufSize,
advancesArray.get(), nullptr);
return minikin::getOffsetForAdvance(advancesArray.get(), buf, start, count, advance);
}
static jint getOffsetForAdvance___CIIIIZF_I(JNIEnv *env, jclass, jlong paintHandle,
jcharArray text, jint start, jint end, jint contextStart, jint contextEnd,
jboolean isRtl, jfloat advance) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
ScopedCharArrayRO textArray(env, text);
jint result = doOffsetForAdvance(paint, typeface, textArray.get() + contextStart,
start - contextStart, end - start, contextEnd - contextStart, isRtl, advance);
result += contextStart;
return result;
}
static SkScalar getMetricsInternal(jlong paintHandle, SkFontMetrics* metrics, bool useLocale) {
const int kElegantTop = 2500;
const int kElegantBottom = -1000;
const int kElegantAscent = 1900;
const int kElegantDescent = -500;
const int kElegantLeading = 0;
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
SkFont* font = &paint->getSkFont();
const Typeface* typeface = paint->getAndroidTypeface();
typeface = Typeface::resolveDefault(typeface);
minikin::FakedFont baseFont = typeface->fFontCollection->baseFontFaked(typeface->fStyle);
float saveSkewX = font->getSkewX();
bool savefakeBold = font->isEmbolden();
MinikinFontSkia::populateSkFont(font, baseFont.typeface().get(), baseFont.fakery);
SkScalar spacing = font->getMetrics(metrics);
// The populateSkPaint call may have changed fake bold / text skew
// because we want to measure with those effects applied, so now
// restore the original settings.
font->setSkewX(saveSkewX);
font->setEmbolden(savefakeBold);
if (paint->getFamilyVariant() == minikin::FamilyVariant::ELEGANT) {
SkScalar size = font->getSize();
metrics->fTop = -size * kElegantTop / 2048;
metrics->fBottom = -size * kElegantBottom / 2048;
metrics->fAscent = -size * kElegantAscent / 2048;
metrics->fDescent = -size * kElegantDescent / 2048;
metrics->fLeading = size * kElegantLeading / 2048;
spacing = metrics->fDescent - metrics->fAscent + metrics->fLeading;
}
if (useLocale) {
minikin::MinikinPaint minikinPaint = MinikinUtils::prepareMinikinPaint(paint, typeface);
minikin::MinikinExtent extent =
typeface->fFontCollection->getReferenceExtentForLocale(minikinPaint);
metrics->fAscent = std::min(extent.ascent, metrics->fAscent);
metrics->fDescent = std::max(extent.descent, metrics->fDescent);
metrics->fTop = std::min(metrics->fAscent, metrics->fTop);
metrics->fBottom = std::max(metrics->fDescent, metrics->fBottom);
}
return spacing;
}
static void doFontExtent(JNIEnv* env, jlong paintHandle, const jchar buf[], jint start,
jint count, jint bufSize, jboolean isRtl, jobject fmi) {
const Paint* paint = reinterpret_cast<Paint*>(paintHandle);
const Typeface* typeface = paint->getAndroidTypeface();
minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
minikin::MinikinExtent extent =
MinikinUtils::getFontExtent(paint, bidiFlags, typeface, buf, start, count, bufSize);
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, false /* useLocale */);
metrics.fAscent = extent.ascent;
metrics.fDescent = extent.descent;
// If top/bottom is narrower than ascent/descent, adjust top/bottom to ascent/descent.
metrics.fTop = std::min(metrics.fAscent, metrics.fTop);
metrics.fBottom = std::max(metrics.fDescent, metrics.fBottom);
GraphicsJNI::set_metrics_int(env, fmi, metrics);
}
static void getFontMetricsIntForText___C(JNIEnv* env, jclass, jlong paintHandle,
jcharArray text, jint start, jint count, jint ctxStart,
jint ctxCount, jboolean isRtl, jobject fmi) {
ScopedCharArrayRO textArray(env, text);
doFontExtent(env, paintHandle, textArray.get() + ctxStart, start - ctxStart, count,
ctxCount, isRtl, fmi);
}
static void getFontMetricsIntForText___String(JNIEnv* env, jclass, jlong paintHandle,
jstring text, jint start, jint count,
jint ctxStart, jint ctxCount, jboolean isRtl,
jobject fmi) {
ScopedStringChars textChars(env, text);
doFontExtent(env, paintHandle, textChars.get() + ctxStart, start - ctxStart, count,
ctxCount, isRtl, fmi);
}
// ------------------ @FastNative ---------------------------
static jint setTextLocales(JNIEnv* env, jobject clazz, jlong objHandle, jstring locales) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
ScopedUtfChars localesChars(env, locales);
jint minikinLocaleListId = minikin::registerLocaleList(localesChars.c_str());
obj->setMinikinLocaleListId(minikinLocaleListId);
return minikinLocaleListId;
}
static void setFontFeatureSettings(JNIEnv* env, jobject clazz, jlong paintHandle,
jstring settings) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
if (!settings) {
paint->resetFontFeatures();
} else {
ScopedUtfChars settingsChars(env, settings);
paint->setFontFeatureSettings(
std::string_view(settingsChars.c_str(), settingsChars.size()));
}
}
static jfloat getFontMetrics(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj,
jboolean useLocale) {
SkFontMetrics metrics;
SkScalar spacing = getMetricsInternal(paintHandle, &metrics, useLocale);
GraphicsJNI::set_metrics(env, metricsObj, metrics);
return SkScalarToFloat(spacing);
}
static jint getFontMetricsInt(JNIEnv* env, jobject, jlong paintHandle, jobject metricsObj,
jboolean useLocale) {
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, useLocale);
return GraphicsJNI::set_metrics_int(env, metricsObj, metrics);
}
// ------------------ @CriticalNative ---------------------------
static void reset(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
reinterpret_cast<Paint*>(objHandle)->reset();
}
static void assign(CRITICAL_JNI_PARAMS_COMMA jlong dstPaintHandle, jlong srcPaintHandle) {
Paint* dst = reinterpret_cast<Paint*>(dstPaintHandle);
const Paint* src = reinterpret_cast<Paint*>(srcPaintHandle);
*dst = *src;
}
static jint getFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
uint32_t flags = reinterpret_cast<Paint*>(paintHandle)->getJavaFlags();
return static_cast<jint>(flags);
}
static void setFlags(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint flags) {
reinterpret_cast<Paint*>(paintHandle)->setJavaFlags(flags);
}
static jint getHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return (SkFontHinting)reinterpret_cast<Paint*>(paintHandle)->getSkFont().getHinting()
== SkFontHinting::kNone ? 0 : 1;
}
static void setHinting(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint mode) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setHinting(
mode == 0 ? SkFontHinting::kNone : SkFontHinting::kNormal);
}
static void setAntiAlias(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean aa) {
reinterpret_cast<Paint*>(paintHandle)->setAntiAlias(aa);
}
static void setLinearText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean linearText) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setLinearMetrics(linearText);
}
static void setSubpixelText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean subpixelText) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSubpixel(subpixelText);
}
static void setUnderlineText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean underlineText) {
reinterpret_cast<Paint*>(paintHandle)->setUnderline(underlineText);
}
static void setStrikeThruText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean strikeThruText) {
reinterpret_cast<Paint*>(paintHandle)->setStrikeThru(strikeThruText);
}
static void setFakeBoldText(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean fakeBoldText) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setEmbolden(fakeBoldText);
}
static void setFilterBitmap(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean filterBitmap) {
reinterpret_cast<Paint*>(paintHandle)->setFilterBitmap(filterBitmap);
}
static void setDither(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jboolean dither) {
reinterpret_cast<Paint*>(paintHandle)->setDither(dither);
}
static jint getStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
return static_cast<jint>(obj->getStyle());
}
static void setStyle(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint styleHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
Paint::Style style = static_cast<Paint::Style>(styleHandle);
obj->setStyle(style);
}
static void setColorLong(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jlong colorSpaceHandle,
jlong colorLong) {
SkColor4f color = GraphicsJNI::convertColorLong(colorLong);
sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle);
reinterpret_cast<Paint*>(paintHandle)->setColor4f(color, cs.get());
}
static void setColor(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint color) {
reinterpret_cast<Paint*>(paintHandle)->setColor(color);
}
static void setAlpha(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint a) {
reinterpret_cast<Paint*>(paintHandle)->setAlpha(a);
}
static jfloat getStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeWidth());
}
static void setStrokeWidth(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat width) {
reinterpret_cast<Paint*>(paintHandle)->setStrokeWidth(width);
}
static jfloat getStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getStrokeMiter());
}
static void setStrokeMiter(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat miter) {
reinterpret_cast<Paint*>(paintHandle)->setStrokeMiter(miter);
}
static jint getStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
return static_cast<jint>(obj->getStrokeCap());
}
static void setStrokeCap(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint capHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
Paint::Cap cap = static_cast<Paint::Cap>(capHandle);
obj->setStrokeCap(cap);
}
static jint getStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
return static_cast<jint>(obj->getStrokeJoin());
}
static void setStrokeJoin(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint joinHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
Paint::Join join = (Paint::Join) joinHandle;
obj->setStrokeJoin(join);
}
static jboolean getFillPath(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong srcHandle, jlong dstHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
return skpathutils::FillPathWithPaint(*src, *obj, dst) ? JNI_TRUE : JNI_FALSE;
}
static jlong setShader(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong shaderHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
SkShader* shader = reinterpret_cast<SkShader*>(shaderHandle);
obj->setShader(sk_ref_sp(shader));
return reinterpret_cast<jlong>(obj->getShader());
}
static jlong setColorFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong filterHandle) {
Paint* obj = reinterpret_cast<Paint *>(objHandle);
auto colorFilter = uirenderer::ColorFilter::fromJava(filterHandle);
auto skColorFilter =
colorFilter != nullptr ? colorFilter->getInstance() : sk_sp<SkColorFilter>();
obj->setColorFilter(skColorFilter);
return filterHandle;
}
static void setXfermode(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint xfermodeHandle) {
// validate that the Java enum values match our expectations
static_assert(0 == static_cast<int>(SkBlendMode::kClear), "xfermode_mismatch");
static_assert(1 == static_cast<int>(SkBlendMode::kSrc), "xfermode_mismatch");
static_assert(2 == static_cast<int>(SkBlendMode::kDst), "xfermode_mismatch");
static_assert(3 == static_cast<int>(SkBlendMode::kSrcOver), "xfermode_mismatch");
static_assert(4 == static_cast<int>(SkBlendMode::kDstOver), "xfermode_mismatch");
static_assert(5 == static_cast<int>(SkBlendMode::kSrcIn), "xfermode_mismatch");
static_assert(6 == static_cast<int>(SkBlendMode::kDstIn), "xfermode_mismatch");
static_assert(7 == static_cast<int>(SkBlendMode::kSrcOut), "xfermode_mismatch");
static_assert(8 == static_cast<int>(SkBlendMode::kDstOut), "xfermode_mismatch");
static_assert(9 == static_cast<int>(SkBlendMode::kSrcATop), "xfermode_mismatch");
static_assert(10 == static_cast<int>(SkBlendMode::kDstATop), "xfermode_mismatch");
static_assert(11 == static_cast<int>(SkBlendMode::kXor), "xfermode_mismatch");
static_assert(12 == static_cast<int>(SkBlendMode::kPlus), "xfermode_mismatch");
static_assert(13 == static_cast<int>(SkBlendMode::kModulate), "xfermode_mismatch");
static_assert(14 == static_cast<int>(SkBlendMode::kScreen), "xfermode_mismatch");
static_assert(15 == static_cast<int>(SkBlendMode::kOverlay), "xfermode_mismatch");
static_assert(16 == static_cast<int>(SkBlendMode::kDarken), "xfermode_mismatch");
static_assert(17 == static_cast<int>(SkBlendMode::kLighten), "xfermode_mismatch");
static_assert(18 == static_cast<int>(SkBlendMode::kColorDodge), "xfermode mismatch");
static_assert(19 == static_cast<int>(SkBlendMode::kColorBurn), "xfermode mismatch");
static_assert(20 == static_cast<int>(SkBlendMode::kHardLight), "xfermode mismatch");
static_assert(21 == static_cast<int>(SkBlendMode::kSoftLight), "xfermode mismatch");
static_assert(22 == static_cast<int>(SkBlendMode::kDifference), "xfermode mismatch");
static_assert(23 == static_cast<int>(SkBlendMode::kExclusion), "xfermode mismatch");
static_assert(24 == static_cast<int>(SkBlendMode::kMultiply), "xfermode mismatch");
static_assert(25 == static_cast<int>(SkBlendMode::kHue), "xfermode mismatch");
static_assert(26 == static_cast<int>(SkBlendMode::kSaturation), "xfermode mismatch");
static_assert(27 == static_cast<int>(SkBlendMode::kColor), "xfermode mismatch");
static_assert(28 == static_cast<int>(SkBlendMode::kLuminosity), "xfermode mismatch");
SkBlendMode mode = static_cast<SkBlendMode>(xfermodeHandle);
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
paint->setBlendMode(mode);
}
static jlong setPathEffect(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong effectHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
SkPathEffect* effect = reinterpret_cast<SkPathEffect*>(effectHandle);
obj->setPathEffect(sk_ref_sp(effect));
return reinterpret_cast<jlong>(obj->getPathEffect());
}
static jlong setMaskFilter(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong maskfilterHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
SkMaskFilter* maskfilter = reinterpret_cast<SkMaskFilter*>(maskfilterHandle);
obj->setMaskFilter(sk_ref_sp(maskfilter));
return reinterpret_cast<jlong>(obj->getMaskFilter());
}
static void setTypeface(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jlong typefaceHandle) {
Paint* paint = reinterpret_cast<Paint*>(objHandle);
paint->setAndroidTypeface(reinterpret_cast<Typeface*>(typefaceHandle));
}
static jint getTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
return static_cast<jint>(obj->getTextAlign());
}
static void setTextAlign(CRITICAL_JNI_PARAMS_COMMA jlong objHandle, jint alignHandle) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
Paint::Align align = static_cast<Paint::Align>(alignHandle);
obj->setTextAlign(align);
}
static void setTextLocalesByMinikinLocaleListId(CRITICAL_JNI_PARAMS_COMMA jlong objHandle,
jint minikinLocaleListId) {
Paint* obj = reinterpret_cast<Paint*>(objHandle);
obj->setMinikinLocaleListId(minikinLocaleListId);
}
// Note: Following three values must be equal to the ones in Java file: Paint.java.
constexpr jint ELEGANT_TEXT_HEIGHT_UNSET = -1;
constexpr jint ELEGANT_TEXT_HEIGHT_ENABLED = 0;
constexpr jint ELEGANT_TEXT_HEIGHT_DISABLED = 1;
static jint getElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
Paint* obj = reinterpret_cast<Paint*>(paintHandle);
const std::optional<minikin::FamilyVariant>& familyVariant = obj->getFamilyVariant();
if (familyVariant.has_value()) {
if (familyVariant.value() == minikin::FamilyVariant::ELEGANT) {
return ELEGANT_TEXT_HEIGHT_ENABLED;
} else {
return ELEGANT_TEXT_HEIGHT_DISABLED;
}
} else {
return ELEGANT_TEXT_HEIGHT_UNSET;
}
}
static void setElegantTextHeight(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint value) {
Paint* obj = reinterpret_cast<Paint*>(paintHandle);
switch (value) {
case ELEGANT_TEXT_HEIGHT_ENABLED:
obj->setFamilyVariant(minikin::FamilyVariant::ELEGANT);
return;
case ELEGANT_TEXT_HEIGHT_DISABLED:
obj->setFamilyVariant(minikin::FamilyVariant::DEFAULT);
return;
case ELEGANT_TEXT_HEIGHT_UNSET:
default:
obj->resetFamilyVariant();
return;
}
}
static jfloat getTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize());
}
static void setTextSize(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat textSize) {
if (textSize >= 0) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSize(textSize);
}
}
static jfloat getTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getScaleX());
}
static void setTextScaleX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat scaleX) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setScaleX(scaleX);
}
static jfloat getTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
return SkScalarToFloat(reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSkewX());
}
static void setTextSkewX(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat skewX) {
reinterpret_cast<Paint*>(paintHandle)->getSkFont().setSkewX(skewX);
}
static jfloat getLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
return paint->getLetterSpacing();
}
static void setLetterSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat letterSpacing) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
paint->setLetterSpacing(letterSpacing);
}
static jfloat getWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
return paint->getWordSpacing();
}
static void setWordSpacing(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat wordSpacing) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
paint->setWordSpacing(wordSpacing);
}
static jint getStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
return static_cast<jint>(paint->getStartHyphenEdit());
}
static jint getEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
return static_cast<jint>(paint->getEndHyphenEdit());
}
static void setStartHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
paint->setStartHyphenEdit((uint32_t)hyphen);
}
static void setEndHyphenEdit(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jint hyphen) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
paint->setEndHyphenEdit((uint32_t)hyphen);
}
static jfloat ascent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, false /* useLocale */);
return SkScalarToFloat(metrics.fAscent);
}
static jfloat descent(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, false /* useLocale */);
return SkScalarToFloat(metrics.fDescent);
}
static jfloat getUnderlinePosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, false /* useLocale */);
SkScalar position;
if (metrics.hasUnderlinePosition(&position)) {
return SkScalarToFloat(position);
} else {
const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
return SkScalarToFloat(Paint::kStdUnderline_Top * textSize);
}
}
static jfloat getUnderlineThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
SkFontMetrics metrics;
getMetricsInternal(paintHandle, &metrics, false /* useLocale */);
SkScalar thickness;
if (metrics.hasUnderlineThickness(&thickness)) {
return SkScalarToFloat(thickness);
} else {
const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
return SkScalarToFloat(Paint::kStdUnderline_Thickness * textSize);
}
}
static jfloat getStrikeThruPosition(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
return SkScalarToFloat(Paint::kStdStrikeThru_Top * textSize);
}
static jfloat getStrikeThruThickness(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
const SkScalar textSize = reinterpret_cast<Paint*>(paintHandle)->getSkFont().getSize();
return SkScalarToFloat(Paint::kStdStrikeThru_Thickness * textSize);
}
static void setShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle, jfloat radius,
jfloat dx, jfloat dy, jlong colorSpaceHandle,
jlong colorLong) {
SkColor4f color = GraphicsJNI::convertColorLong(colorLong);
sk_sp<SkColorSpace> cs = GraphicsJNI::getNativeColorSpace(colorSpaceHandle);
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
if (radius <= 0) {
paint->setLooper(nullptr);
}
else {
SkScalar sigma = android::uirenderer::Blur::convertRadiusToSigma(radius);
paint->setLooper(BlurDrawLooper::Make(color, cs.get(), sigma, {dx, dy}));
}
}
static jboolean hasShadowLayer(CRITICAL_JNI_PARAMS_COMMA jlong paintHandle) {
Paint* paint = reinterpret_cast<Paint*>(paintHandle);
return paint->getLooper() != nullptr;
}
static jboolean equalsForTextMeasurement(CRITICAL_JNI_PARAMS_COMMA jlong lPaint, jlong rPaint) {
if (lPaint == rPaint) {
return true;
}
Paint* leftPaint = reinterpret_cast<Paint*>(lPaint);
Paint* rightPaint = reinterpret_cast<Paint*>(rPaint);
const Typeface* leftTypeface = Typeface::resolveDefault(leftPaint->getAndroidTypeface());
const Typeface* rightTypeface = Typeface::resolveDefault(rightPaint->getAndroidTypeface());
minikin::MinikinPaint leftMinikinPaint
= MinikinUtils::prepareMinikinPaint(leftPaint, leftTypeface);
minikin::MinikinPaint rightMinikinPaint
= MinikinUtils::prepareMinikinPaint(rightPaint, rightTypeface);
return leftMinikinPaint == rightMinikinPaint;
}
}; // namespace PaintGlue
static const JNINativeMethod methods[] = {
{"nGetNativeFinalizer", "()J", (void*)PaintGlue::getNativeFinalizer},
{"nInit", "()J", (void*)PaintGlue::init},
{"nInitWithPaint", "(J)J", (void*)PaintGlue::initWithPaint},
{"nBreakText", "(J[CIIFI[F)I", (void*)PaintGlue::breakTextC},
{"nBreakText", "(JLjava/lang/String;ZFI[F)I", (void*)PaintGlue::breakTextS},
{"nGetTextAdvances", "(J[CIIIII[FI)F", (void*)PaintGlue::getTextAdvances___CIIIII_FI},
{"nGetTextAdvances", "(JLjava/lang/String;IIIII[FI)F",
(void*)PaintGlue::getTextAdvances__StringIIIII_FI},
{"nGetTextRunCursor", "(J[CIIIII)I", (void*)PaintGlue::getTextRunCursor___C},
{"nGetTextRunCursor", "(JLjava/lang/String;IIIII)I",
(void*)PaintGlue::getTextRunCursor__String},
{"nGetTextPath", "(JI[CIIFFJ)V", (void*)PaintGlue::getTextPath___C},
{"nGetTextPath", "(JILjava/lang/String;IIFFJ)V", (void*)PaintGlue::getTextPath__String},
{"nGetStringBounds", "(JLjava/lang/String;IIILandroid/graphics/Rect;)V",
(void*)PaintGlue::getStringBounds},
{"nGetCharArrayBounds", "(J[CIIILandroid/graphics/Rect;)V",
(void*)PaintGlue::getCharArrayBounds},
{"nHasGlyph", "(JILjava/lang/String;)Z", (void*)PaintGlue::hasGlyph},
{"nGetRunAdvance", "(J[CIIIIZI)F", (void*)PaintGlue::getRunAdvance___CIIIIZI_F},
{"nGetRunCharacterAdvance", "(J[CIIIIZI[FILandroid/graphics/RectF;)F",
(void*)PaintGlue::getRunCharacterAdvance___CIIIIZI_FI_F},
{"nGetOffsetForAdvance", "(J[CIIIIZF)I", (void*)PaintGlue::getOffsetForAdvance___CIIIIZF_I},
{"nGetFontMetricsIntForText", "(J[CIIIIZLandroid/graphics/Paint$FontMetricsInt;)V",
(void*)PaintGlue::getFontMetricsIntForText___C},
{"nGetFontMetricsIntForText",
"(JLjava/lang/String;IIIIZLandroid/graphics/Paint$FontMetricsInt;)V",
(void*)PaintGlue::getFontMetricsIntForText___String},
// --------------- @FastNative ----------------------
{"nSetTextLocales", "(JLjava/lang/String;)I", (void*)PaintGlue::setTextLocales},
{"nSetFontFeatureSettings", "(JLjava/lang/String;)V",
(void*)PaintGlue::setFontFeatureSettings},
{"nGetFontMetrics", "(JLandroid/graphics/Paint$FontMetrics;Z)F",
(void*)PaintGlue::getFontMetrics},
{"nGetFontMetricsInt", "(JLandroid/graphics/Paint$FontMetricsInt;Z)I",
(void*)PaintGlue::getFontMetricsInt},
// --------------- @CriticalNative ------------------
{"nReset", "(J)V", (void*)PaintGlue::reset},
{"nSet", "(JJ)V", (void*)PaintGlue::assign},
{"nGetFlags", "(J)I", (void*)PaintGlue::getFlags},
{"nSetFlags", "(JI)V", (void*)PaintGlue::setFlags},
{"nGetHinting", "(J)I", (void*)PaintGlue::getHinting},
{"nSetHinting", "(JI)V", (void*)PaintGlue::setHinting},
{"nSetAntiAlias", "(JZ)V", (void*)PaintGlue::setAntiAlias},
{"nSetSubpixelText", "(JZ)V", (void*)PaintGlue::setSubpixelText},
{"nSetLinearText", "(JZ)V", (void*)PaintGlue::setLinearText},
{"nSetUnderlineText", "(JZ)V", (void*)PaintGlue::setUnderlineText},
{"nSetStrikeThruText", "(JZ)V", (void*)PaintGlue::setStrikeThruText},
{"nSetFakeBoldText", "(JZ)V", (void*)PaintGlue::setFakeBoldText},
{"nSetFilterBitmap", "(JZ)V", (void*)PaintGlue::setFilterBitmap},
{"nSetDither", "(JZ)V", (void*)PaintGlue::setDither},
{"nGetStyle", "(J)I", (void*)PaintGlue::getStyle},
{"nSetStyle", "(JI)V", (void*)PaintGlue::setStyle},
{"nSetColor", "(JI)V", (void*)PaintGlue::setColor},
{"nSetColor", "(JJJ)V", (void*)PaintGlue::setColorLong},
{"nSetAlpha", "(JI)V", (void*)PaintGlue::setAlpha},
{"nGetStrokeWidth", "(J)F", (void*)PaintGlue::getStrokeWidth},
{"nSetStrokeWidth", "(JF)V", (void*)PaintGlue::setStrokeWidth},
{"nGetStrokeMiter", "(J)F", (void*)PaintGlue::getStrokeMiter},
{"nSetStrokeMiter", "(JF)V", (void*)PaintGlue::setStrokeMiter},
{"nGetStrokeCap", "(J)I", (void*)PaintGlue::getStrokeCap},
{"nSetStrokeCap", "(JI)V", (void*)PaintGlue::setStrokeCap},
{"nGetStrokeJoin", "(J)I", (void*)PaintGlue::getStrokeJoin},
{"nSetStrokeJoin", "(JI)V", (void*)PaintGlue::setStrokeJoin},
{"nGetFillPath", "(JJJ)Z", (void*)PaintGlue::getFillPath},
{"nSetShader", "(JJ)J", (void*)PaintGlue::setShader},
{"nSetColorFilter", "(JJ)J", (void*)PaintGlue::setColorFilter},
{"nSetXfermode", "(JI)V", (void*)PaintGlue::setXfermode},
{"nSetPathEffect", "(JJ)J", (void*)PaintGlue::setPathEffect},
{"nSetMaskFilter", "(JJ)J", (void*)PaintGlue::setMaskFilter},
{"nSetTypeface", "(JJ)V", (void*)PaintGlue::setTypeface},
{"nGetTextAlign", "(J)I", (void*)PaintGlue::getTextAlign},
{"nSetTextAlign", "(JI)V", (void*)PaintGlue::setTextAlign},
{"nSetTextLocalesByMinikinLocaleListId", "(JI)V",
(void*)PaintGlue::setTextLocalesByMinikinLocaleListId},
{"nGetElegantTextHeight", "(J)I", (void*)PaintGlue::getElegantTextHeight},
{"nSetElegantTextHeight", "(JI)V", (void*)PaintGlue::setElegantTextHeight},
{"nGetTextSize", "(J)F", (void*)PaintGlue::getTextSize},
{"nSetTextSize", "(JF)V", (void*)PaintGlue::setTextSize},
{"nGetTextScaleX", "(J)F", (void*)PaintGlue::getTextScaleX},
{"nSetTextScaleX", "(JF)V", (void*)PaintGlue::setTextScaleX},
{"nGetTextSkewX", "(J)F", (void*)PaintGlue::getTextSkewX},
{"nSetTextSkewX", "(JF)V", (void*)PaintGlue::setTextSkewX},
{"nGetLetterSpacing", "(J)F", (void*)PaintGlue::getLetterSpacing},
{"nSetLetterSpacing", "(JF)V", (void*)PaintGlue::setLetterSpacing},
{"nGetWordSpacing", "(J)F", (void*)PaintGlue::getWordSpacing},
{"nSetWordSpacing", "(JF)V", (void*)PaintGlue::setWordSpacing},
{"nGetStartHyphenEdit", "(J)I", (void*)PaintGlue::getStartHyphenEdit},
{"nGetEndHyphenEdit", "(J)I", (void*)PaintGlue::getEndHyphenEdit},
{"nSetStartHyphenEdit", "(JI)V", (void*)PaintGlue::setStartHyphenEdit},
{"nSetEndHyphenEdit", "(JI)V", (void*)PaintGlue::setEndHyphenEdit},
{"nAscent", "(J)F", (void*)PaintGlue::ascent},
{"nDescent", "(J)F", (void*)PaintGlue::descent},
{"nGetUnderlinePosition", "(J)F", (void*)PaintGlue::getUnderlinePosition},
{"nGetUnderlineThickness", "(J)F", (void*)PaintGlue::getUnderlineThickness},
{"nGetStrikeThruPosition", "(J)F", (void*)PaintGlue::getStrikeThruPosition},
{"nGetStrikeThruThickness", "(J)F", (void*)PaintGlue::getStrikeThruThickness},
{"nSetShadowLayer", "(JFFFJJ)V", (void*)PaintGlue::setShadowLayer},
{"nHasShadowLayer", "(J)Z", (void*)PaintGlue::hasShadowLayer},
{"nEqualsForTextMeasurement", "(JJ)Z", (void*)PaintGlue::equalsForTextMeasurement},
};
int register_android_graphics_Paint(JNIEnv* env) {
return RegisterMethodsOrDie(env, "android/graphics/Paint", methods, NELEM(methods));
}
}