bug: 解决centerCrop问题 close #276

Author: hexleo

Android/PlayerProj/animplayer/src/main/java/com/tencent/qgame/animplayer/mix/MixRender.kt

@@ -15,14 +15,11 @@
  */
 package com.tencent.qgame.animplayer.mix
 
-import android.graphics.Bitmap
 import android.opengl.GLES11Ext
 import android.opengl.GLES20
-import android.opengl.GLUtils
 import com.tencent.qgame.animplayer.AnimConfig
 import com.tencent.qgame.animplayer.Constant
 import com.tencent.qgame.animplayer.PointRect
-import com.tencent.qgame.animplayer.RenderConstant
 import com.tencent.qgame.animplayer.util.*
 
 /**
@@ -63,7 +60,7 @@ class MixRender(private val mixAnimPlugin: MixAnimPlugin) {
         vertexArray.setVertexAttribPointer(shader.aPositionLocation)
 
         // src 纹理坐标
-        srcArray.setArray(genSrcCoordsArray(srcArray.array, frame.frame.w, frame.frame.h, src.w, src.h, src.fitType))
+        srcArray.setArray(genSrcCoordsArray(srcArray.array, frame.frame.w, frame.frame.h, src.drawWidth, src.drawHeight, src.fitType))
         srcArray.setVertexAttribPointer(shader.aTextureSrcCoordinatesLocation)
         // 绑定 src纹理
         GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
@@ -107,6 +104,9 @@ class MixRender(private val mixAnimPlugin: MixAnimPlugin) {
         }
     }
 
+    /**
+     * CENTER_FULL 并不是严格的centerCrop(centerCrop已经前置处理)，此处主要是为防抖动做处理，复杂遮罩情况下需要固定src大小进行绘制防止抖动
+     */
     private fun genSrcCoordsArray(array: FloatArray, fw: Int, fh: Int, sw: Int, sh: Int, fitType: Src.FitType): FloatArray {
         return if (fitType == Src.FitType.CENTER_FULL) {
             if (fw <= sw && fh <= sh) {

Android/PlayerProj/animplayer/src/main/java/com/tencent/qgame/animplayer/mix/Src.kt

@@ -51,15 +51,21 @@ class Src {
     var srcId = ""
     var w = 0
     var h = 0
+    var drawWidth = 0
+    var drawHeight = 0
     var srcType = SrcType.UNKNOWN
     var loadType = LoadType.UNKNOWN
     var srcTag = ""
-    var bitmap: Bitmap? = null
     var txt = ""
     var style = Style.DEFAULT
     var color: Int = 0
     var fitType = FitType.FIT_XY
     var srcTextureId = 0
+    var bitmap: Bitmap? = null
+        set(value) {
+            field = value
+            genDrawSize(value)
+        }
 
     constructor(json: JSONObject) {
         srcId = json.getString("srcId")
@@ -98,6 +104,29 @@ class Src {
     }
 
 
+    private fun genDrawSize(bitmap: Bitmap?) {
+        val bw = bitmap?.width?: w
+        val bh = bitmap?.height?: h
+        drawWidth = bw
+        drawHeight = bh
+        if (fitType == FitType.CENTER_FULL) {
+            if (w == 0 || h == 0) {
+                return
+            }
+            // 按src w h进行centerCrop处理
+            val srcRate = w.toFloat() / h.toFloat()
+            val bitmapRate = bw.toFloat() / bh.toFloat()
+
+            if (bitmapRate >= srcRate) {
+                drawHeight = h
+                drawWidth = (h * bitmapRate).toInt()
+            } else {
+                drawWidth = w
+                drawHeight = (w / bitmapRate).toInt()
+            }
+        }
+    }
+
 
     override fun toString(): String {
         return "Src(srcId='$srcId', srcType=$srcType, loadType=$loadType, srcTag='$srcTag', bitmap=$bitmap, txt='$txt')"

Android/PlayerProj/app/src/main/java/com/tencent/qgame/playerproj/player/AnimVapxDemoActivity.kt

@@ -103,8 +103,7 @@ class AnimVapxDemoActivity : Activity(), IAnimListener {
                  * 比如：一个素材里需要显示多个头像，则需要定义多个不同的tag，表示不同位置，需要显示不同的头像，文字类似
                  */
                 val srcTag = resource.tag
-
-                if (srcTag == "[sImg1]") { // 此tag是已经写入到动画配置中的tag
+                if (srcTag.isNotEmpty()) {
                     val drawableId = if (head1Img) R.drawable.head1 else R.drawable.head2
                     head1Img = !head1Img
                     val options = BitmapFactory.Options()
@@ -121,8 +120,7 @@ class AnimVapxDemoActivity : Activity(), IAnimListener {
             override fun fetchText(resource: Resource, result: (String?) -> Unit) {
                 val str = "恭喜 No.${1000 + Random().nextInt(8999)}用户 升神"
                 val srcTag = resource.tag
-
-                if (srcTag == "[sTxt1]") { // 此tag是已经写入到动画配置中的tag
+                if (srcTag.isNotEmpty()) { // 此tag是已经写入到动画配置中的tag
                     result(str)
                 } else {
                     result(null)