CoverImageUtils.kt 10.8 KB
Newer Older
konghaorui committed
1
package com.ydl.media.audio.utils
konghaorui committed
2 3

import android.graphics.*
4 5 6 7 8 9 10
import com.bumptech.glide.Glide
import com.bumptech.glide.load.DecodeFormat
import com.bumptech.glide.load.resource.bitmap.CircleCrop
import com.bumptech.glide.request.RequestOptions
import com.bumptech.glide.request.target.SimpleTarget
import com.bumptech.glide.request.transition.Transition
import com.ydl.ydlcommon.base.BaseApp
konghaorui committed
11 12 13 14 15

/**
 * Created by haorui on 2019-10-27 .
 * Des:
 */
16
object CoverImageUtils {
konghaorui committed
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349
    private val BLUR_RADIUS = 50

    fun blur(source: Bitmap?): Bitmap? {
        if (source == null) {
            return null
        }

        try {
            return blur(source, BLUR_RADIUS)
        } catch (e: Exception) {
            e.printStackTrace()
            return source
        }

    }

    /**
     * Stack Blur v1.0 from
     * http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
     *
     *
     * Java Author: Mario Klingemann <mario at quasimondo.com>
     * http://incubator.quasimondo.com
     * created Feburary 29, 2004
     * Android port : Yahel Bouaziz <yahel at kayenko.com>
     * http://www.kayenko.com
     * ported april 5th, 2012
    </yahel></mario> *
     *
     * This is a compromise between Gaussian Blur and Box blur
     * It creates much better looking blurs than Box Blur, but is
     * 7x faster than my Gaussian Blur implementation.
     *
     *
     * I called it Stack Blur because this describes best how this
     * filter works internally: it creates a kind of moving stack
     * of colors whilst scanning through the image. Thereby it
     * just has to add one new block of color to the right side
     * of the stack and remove the leftmost color. The remaining
     * colors on the topmost layer of the stack are either added on
     * or reduced by one, depending on if they are on the right or
     * on the left side of the stack.
     *
     *
     * If you are using this algorithm in your code please add
     * the following line:
     *
     *
     * Stack Blur Algorithm by Mario Klingemann <mario></mario>@quasimondo.com>
     */
    private fun blur(source: Bitmap, radius: Int): Bitmap? {
        val bitmap = source.copy(source.config, true)

        if (radius < 1) {
            return null
        }

        val w = bitmap.width
        val h = bitmap.height

        val pix = IntArray(w * h)
        bitmap.getPixels(pix, 0, w, 0, 0, w, h)

        val wm = w - 1
        val hm = h - 1
        val wh = w * h
        val div = radius + radius + 1

        val r = IntArray(wh)
        val g = IntArray(wh)
        val b = IntArray(wh)
        var rSum: Int
        var gSum: Int
        var bSum: Int
        var x: Int
        var y: Int
        var i: Int
        var p: Int
        var yp: Int
        var yi: Int
        var yw: Int
        val vMin = IntArray(Math.max(w, h))

        var divSum = div + 1 shr 1
        divSum *= divSum
        val dv = IntArray(256 * divSum)
        i = 0
        while (i < 256 * divSum) {
            dv[i] = i / divSum
            i++
        }

        yi = 0
        yw = yi

        val stack = Array(div) { IntArray(3) }
        var stackPointer: Int
        var stackStart: Int
        var sir: IntArray
        var rbs: Int
        val r1 = radius + 1
        var rOutSum: Int
        var gOutSum: Int
        var bOutSum: Int
        var rInSum: Int
        var gInSum: Int
        var bInSum: Int

        y = 0
        while (y < h) {
            bSum = 0
            gSum = bSum
            rSum = gSum
            bOutSum = rSum
            gOutSum = bOutSum
            rOutSum = gOutSum
            bInSum = rOutSum
            gInSum = bInSum
            rInSum = gInSum
            i = -radius
            while (i <= radius) {
                p = pix[yi + Math.min(wm, Math.max(i, 0))]
                sir = stack[i + radius]
                sir[0] = p and 0xff0000 shr 16
                sir[1] = p and 0x00ff00 shr 8
                sir[2] = p and 0x0000ff
                rbs = r1 - Math.abs(i)
                rSum += sir[0] * rbs
                gSum += sir[1] * rbs
                bSum += sir[2] * rbs
                if (i > 0) {
                    rInSum += sir[0]
                    gInSum += sir[1]
                    bInSum += sir[2]
                } else {
                    rOutSum += sir[0]
                    gOutSum += sir[1]
                    bOutSum += sir[2]
                }
                i++
            }
            stackPointer = radius

            x = 0
            while (x < w) {
                r[yi] = dv[rSum]
                g[yi] = dv[gSum]
                b[yi] = dv[bSum]

                rSum -= rOutSum
                gSum -= gOutSum
                bSum -= bOutSum

                stackStart = stackPointer - radius + div
                sir = stack[stackStart % div]

                rOutSum -= sir[0]
                gOutSum -= sir[1]
                bOutSum -= sir[2]

                if (y == 0) {
                    vMin[x] = Math.min(x + radius + 1, wm)
                }
                p = pix[yw + vMin[x]]

                sir[0] = p and 0xff0000 shr 16
                sir[1] = p and 0x00ff00 shr 8
                sir[2] = p and 0x0000ff

                rInSum += sir[0]
                gInSum += sir[1]
                bInSum += sir[2]

                rSum += rInSum
                gSum += gInSum
                bSum += bInSum

                stackPointer = (stackPointer + 1) % div
                sir = stack[stackPointer % div]

                rOutSum += sir[0]
                gOutSum += sir[1]
                bOutSum += sir[2]

                rInSum -= sir[0]
                gInSum -= sir[1]
                bInSum -= sir[2]

                yi++
                x++
            }
            yw += w
            y++
        }
        x = 0
        while (x < w) {
            bSum = 0
            gSum = bSum
            rSum = gSum
            bOutSum = rSum
            gOutSum = bOutSum
            rOutSum = gOutSum
            bInSum = rOutSum
            gInSum = bInSum
            rInSum = gInSum
            yp = -radius * w
            i = -radius
            while (i <= radius) {
                yi = Math.max(0, yp) + x

                sir = stack[i + radius]

                sir[0] = r[yi]
                sir[1] = g[yi]
                sir[2] = b[yi]

                rbs = r1 - Math.abs(i)

                rSum += r[yi] * rbs
                gSum += g[yi] * rbs
                bSum += b[yi] * rbs

                if (i > 0) {
                    rInSum += sir[0]
                    gInSum += sir[1]
                    bInSum += sir[2]
                } else {
                    rOutSum += sir[0]
                    gOutSum += sir[1]
                    bOutSum += sir[2]
                }

                if (i < hm) {
                    yp += w
                }
                i++
            }
            yi = x
            stackPointer = radius
            y = 0
            while (y < h) {
                // Preserve alpha channel: ( 0xff000000 & pix[yi] )
                pix[yi] =
                    -0x1000000 and pix[yi] or (dv[rSum] shl 16) or (dv[gSum] shl 8) or dv[bSum]

                rSum -= rOutSum
                gSum -= gOutSum
                bSum -= bOutSum

                stackStart = stackPointer - radius + div
                sir = stack[stackStart % div]

                rOutSum -= sir[0]
                gOutSum -= sir[1]
                bOutSum -= sir[2]

                if (x == 0) {
                    vMin[y] = Math.min(y + r1, hm) * w
                }
                p = x + vMin[y]

                sir[0] = r[p]
                sir[1] = g[p]
                sir[2] = b[p]

                rInSum += sir[0]
                gInSum += sir[1]
                bInSum += sir[2]

                rSum += rInSum
                gSum += gInSum
                bSum += bInSum

                stackPointer = (stackPointer + 1) % div
                sir = stack[stackPointer]

                rOutSum += sir[0]
                gOutSum += sir[1]
                bOutSum += sir[2]

                rInSum -= sir[0]
                gInSum -= sir[1]
                bInSum -= sir[2]

                yi += w
                y++
            }
            x++
        }

        bitmap.setPixels(pix, 0, w, 0, 0, w, h)

        return bitmap
    }

    /**
     * 将图片放大或缩小到指定尺寸
     */
    fun resizeImage(source: Bitmap?, dstWidth: Int, dstHeight: Int): Bitmap? {
        if (source == null) {
            return null
        }

        return if (source.width == dstWidth && source.height == dstHeight) {
            source
        } else Bitmap.createScaledBitmap(source, dstWidth, dstHeight, true)

    }

    /**
     * 将图片剪裁为圆形
     */
    fun createCircleImage(source: Bitmap?): Bitmap? {
        if (source == null) {
            return null
        }

        val length = Math.min(source.width, source.height)
        val paint = Paint()
        paint.isAntiAlias = true
        val target = Bitmap.createBitmap(length, length, Bitmap.Config.ARGB_8888)
        val canvas = Canvas(target)
        canvas.drawCircle(
            (source.width / 2).toFloat(),
            (source.height / 2).toFloat(),
            (length / 2).toFloat(),
            paint
        )
        paint.xfermode = PorterDuffXfermode(PorterDuff.Mode.SRC_IN)
        canvas.drawBitmap(source, 0f, 0f, paint)
        return target
    }

konghaorui committed
350
    fun loadThumb(url: String,onCoverLoadListener: OnCoverLoadListener) {
351 352 353 354 355 356 357 358
        Glide.with(BaseApp.getApp()).asBitmap()
            .load(url).into(object : SimpleTarget<Bitmap>() {
                override fun onResourceReady(resource: Bitmap?, transition: Transition<in Bitmap>?) {
                    onCoverLoadListener.onComplete(resource!!)
                }
            })
    }

konghaorui committed
359
    fun loadRound(url: String,onCoverLoadListener: OnCoverLoadListener){
360 361 362 363 364 365 366 367 368 369 370
        Glide.with(BaseApp.getApp()).asBitmap()
            .apply(
                RequestOptions.bitmapTransform(
                    CircleCrop()
                )).load(url).into(object : SimpleTarget<Bitmap>() {
                override fun onResourceReady(resource: Bitmap?, transition: Transition<in Bitmap>?) {
                    onCoverLoadListener.onComplete(resource!!)
                }
            })
    }

konghaorui committed
371
    fun loadBlur(url: String,onCoverLoadListener: OnCoverLoadListener){
372 373 374 375
        val disallowHardwareConfig =
            RequestOptions().format(DecodeFormat.PREFER_RGB_565).disallowHardwareConfig()
        Glide.with(BaseApp.getApp()).asBitmap().apply(disallowHardwareConfig).load(url).into(object : SimpleTarget<Bitmap>() {
            override fun onResourceReady(resource: Bitmap?, transition: Transition<in Bitmap>?) {
376
                onCoverLoadListener.onComplete(CoverImageUtils.blur(resource)!!)
377 378 379 380
            }
        })
    }

konghaorui committed
381
    interface OnCoverLoadListener {
382 383
        fun onComplete(bitmap: Bitmap)
    }
konghaorui committed
384
}