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117
backend/src/main/java/net/momirealms/customnameplates/backend/util/FreeTypeUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * Copyright (C) <2022> <XiaoMoMi> | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package net.momirealms.customnameplates.backend.util; | ||
|
|
||
| import org.lwjgl.PointerBuffer; | ||
| import org.lwjgl.system.MemoryStack; | ||
| import org.lwjgl.system.MemoryUtil; | ||
| import org.lwjgl.util.freetype.FT_Vector; | ||
| import org.lwjgl.util.freetype.FreeType; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.nio.ByteBuffer; | ||
| import java.nio.channels.Channels; | ||
| import java.nio.channels.ReadableByteChannel; | ||
| import java.nio.channels.SeekableByteChannel; | ||
|
|
||
| public class FreeTypeUtils { | ||
|
|
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| public static final Object LOCK = new Object(); | ||
| private static long freeType = 0L; | ||
|
|
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| public FreeTypeUtils() { | ||
| } | ||
|
|
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| public static long initialize() { | ||
| synchronized(LOCK) { | ||
| if (freeType == 0L) { | ||
| MemoryStack memoryStack = MemoryStack.stackPush(); | ||
| try { | ||
| PointerBuffer pointerBuffer = memoryStack.mallocPointer(1); | ||
| checkFatalError(FreeType.FT_Init_FreeType(pointerBuffer), "Initializing FreeType library"); | ||
| freeType = pointerBuffer.get(); | ||
| } catch (Throwable t1) { | ||
| try { | ||
| memoryStack.close(); | ||
| } catch (Throwable t2) { | ||
| t1.addSuppressed(t2); | ||
| } | ||
| throw t1; | ||
| } | ||
| memoryStack.close(); | ||
| } | ||
| return freeType; | ||
| } | ||
| } | ||
|
|
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| public static void checkFatalError(int code, String description) { | ||
| if (code != 0) { | ||
| String var10002 = getErrorMessage(code); | ||
| throw new IllegalStateException("FreeType error: " + var10002 + " (" + description + ")"); | ||
| } | ||
| } | ||
|
|
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| private static String getErrorMessage(int code) { | ||
| String string = FreeType.FT_Error_String(code); | ||
| return string != null ? string : "Unrecognized error: 0x" + Integer.toHexString(code); | ||
| } | ||
|
|
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| public static FT_Vector setShift(FT_Vector vec, float x, float y) { | ||
| long xShift = Math.round(x * 64.0F); | ||
| long yShift = Math.round(y * 64.0F); | ||
| return vec.set(xShift, yShift); | ||
| } | ||
|
|
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| public static float getAdvance(FT_Vector vec) { | ||
| return (float) vec.x() / 64.0F; | ||
| } | ||
|
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| public static void release() { | ||
| synchronized(LOCK) { | ||
| if (freeType != 0L) { | ||
| FreeType.FT_Done_Library(freeType); | ||
| freeType = 0L; | ||
| } | ||
| } | ||
| } | ||
|
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| public static ByteBuffer readResource(InputStream inputStream) throws IOException { | ||
| ReadableByteChannel readableByteChannel = Channels.newChannel(inputStream); | ||
| if (readableByteChannel instanceof SeekableByteChannel seekableByteChannel) { | ||
| return readResource(readableByteChannel, (int)seekableByteChannel.size() + 1); | ||
| } else { | ||
| return readResource(readableByteChannel, 8192); | ||
| } | ||
| } | ||
|
|
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| private static ByteBuffer readResource(ReadableByteChannel channel, int bufSize) throws IOException { | ||
| ByteBuffer byteBuffer = MemoryUtil.memAlloc(bufSize); | ||
| try { | ||
| while(channel.read(byteBuffer) != -1) { | ||
| if (!byteBuffer.hasRemaining()) { | ||
| byteBuffer = MemoryUtil.memRealloc(byteBuffer, byteBuffer.capacity() * 2); | ||
| } | ||
| } | ||
| return byteBuffer; | ||
| } catch (IOException e) { | ||
| MemoryUtil.memFree(byteBuffer); | ||
| throw e; | ||
| } | ||
| } | ||
| } |
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