src/com.mocharealm.accompanist.lyrics.text

Package-level declarations

Types

data class GlyphUpload(val x: Int, val y: Int, val width: Int, val height: Int, val data: ByteArray)

Represents a pending glyph upload from native engine. Contains RGBA pixel data for a region of the atlas.

NativeTextEngine

actual class NativeTextEngine

expect class NativeTextEngine

Native text engine for SDF glyph generation and text layout.

actual class NativeTextEngine

SdfAtlasManager

actual class SdfAtlasManager(atlasWidth: Int, atlasHeight: Int)

Android implementation of SDF atlas manager for text rendering.

expect class SdfAtlasManager(atlasWidth: Int, atlasHeight: Int)

Manages the SDF atlas texture for text rendering. This is a platform-specific implementation that handles:

actual class SdfAtlasManager(atlasWidth: Int, atlasHeight: Int)

JVM/Desktop implementation of SDF atlas manager for text rendering.

Functions

loadFallbackFontFromAsset

fun NativeTextEngine.loadFallbackFontFromAsset(context: Context, assetPath: String): Boolean

Loads a fallback font from Android assets using zero-copy file descriptor. More memory efficient than loading entire font into ByteArray.

loadFallbackFontFromFile

fun NativeTextEngine.loadFallbackFontFromFile(filePath: String): Boolean

Loads a fallback font from a file path using zero-copy file descriptor.

parsePendingUploads

fun parsePendingUploads(json: String): List<GlyphUpload>

Parses the JSON string from NativeTextEngine.getPendingUploads() into a list of GlyphUpload. JSON format: {"x":0,"y":0,"width":32,"height":32,"data":"base64..."},...

rememberSdfAtlasManager

fun rememberSdfAtlasManager(atlasWidth: Int, atlasHeight: Int): SdfAtlasManager

Composable to remember an SdfAtlasManager instance.

suspend fun warmupAscii(nativeEngine: NativeTextEngine, atlasManager: SdfAtlasManager, fontSize: Float, fontWeight: Float = 400.0f)

Pre-caches printable ASCII characters (32-126) for faster rendering. Should be called during app initialization or when fonts are loaded.