可以使用Coil库将.webp文件转换为Bitmap，然后再将其作为Painter资源加载。以下是示例代码：

// 导入 Coil 库
implementation "io.coil-kt:coil-compose:1.3.1"
import androidx.compose.foundation.Image
import androidx.compose.runtime.Composable
import androidx.compose.ui.graphics.ImageBitmap
import androidx.compose.ui.graphics.asImageBitmap
import androidx.compose.ui.layout.ContentScale
import coil.compose.rememberImagePainter
import coil.transform.CircleCropTransformation
import coil.bitmap.BitmapPool
import coil.decode.*
import coil.size.Size
import okio.BufferedSource
import okio.buffer
import okio.source
import android.graphics.Bitmap
import androidx.compose.ui.res.painterResource


@Composable
fun ImageFromWebp(webpResId: Int, contentDescription: String?) {
    // 将.webp文件转换为Bitmap
    val bitmap: Bitmap = CoilImageLoader().loadBitmap(webpResId)
    // 将Bitmap转换为PainterResource
    val painter = bitmap.asImageBitmap().asAndroidPainter()
    Image(painter = painter, contentDescription = contentDescription, contentScale = ContentScale.Fit)
}



// CoilImageLoader
class CoilImageLoader: ImageLoader {
    private val coilLoader = CoilImageLoaderDelegate()

    override val defaults: Defaults = coilLoader.defaults

    override suspend fun load(
        data: Any,
        size: Size,
        options: Options
    ): LoadResult {
        return coilLoader.load(data, size, options)
    }
}


private class CoilImageLoaderDelegate {
    internal val defaults: Defaults

    init {
        // 构建 CoilImageLoader 的默认配置
        val decoder = object : Decoder {
            override fun handles(source: BufferedSource, mimeType: String?): Boolean {
                return mimeType == MIME_TYPE
            }

            override fun decode(
                pool: BitmapPool,
                source: BufferedSource,
                width: Int,
                height: Int,
                options: Options
            ): DecodeResult {
                val bitmap = WebpDecoder(pool, Bitmap.Config.ARGB_8888).decode(source).get()
                return DecodeResult(bitmap, SourceData(source =