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DastanIqbal/EZRenderer.kt

Last active February 21, 2023 12:29
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Simple example of Frame Buffer Object in OpenglES
Raw
activity_frames.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.opengl.GLSurfaceView
android:id="@+id/glsurfaceview"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="150dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</android.support.constraint.ConstraintLayout>
Raw
EZRenderer.kt
package com.iaandroid.tutsopengles.fbo
import android.graphics.BitmapFactory
import android.opengl.GLSurfaceView
import com.iaandroid.tutsopengles.R
import javax.microedition.khronos.egl.EGLConfig
import javax.microedition.khronos.opengles.GL10
/**
* Created by dastan on 11/09/2018.
* [email protected]
* 11/09/2018 10:06
*/
class EZRenderer(val glSurfaceView: GLSurfaceView) : GLSurfaceView.Renderer {
private val glRender = SimpleFBORender()
override fun onDrawFrame(gl: GL10?) {
glRender.onDrawFrame()
}
override fun onSurfaceChanged(gl: GL10?, w: Int, h: Int) {
glRender.setRenderSize(w, h)
}
override fun onSurfaceCreated(gl: GL10?, p1: EGLConfig?) {
glRender.initHandlers(BitmapFactory.decodeResource(glSurfaceView.resources, R.mipmap.ic_launcher))
glRender.initFBO()
}
}
Raw
FramesActivity.kt
package com.iaandroid.tutsopengles.frames
import android.app.Activity
import android.content.Context
import android.opengl.GLSurfaceView
import android.os.Bundle
import android.support.v7.widget.LinearLayoutManager
import android.support.v7.widget.RecyclerView
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.view.Window
import android.widget.TextView
import com.dastanapps.mediasdk.opengles.gpu.FBORender
import com.dastanapps.mediasdk.opengles.gpu.ImageRenderer
import com.dastanapps.mediasdk.opengles.gpu.fbo.RTTRenderer
import com.dastanapps.mediasdk.opengles.gpu.filter.ImageFilter
import com.dastanapps.mediasdk.opengles.gpu.filter.InvertColorFilter
import com.dastanapps.mediasdk.opengles.gpu.filter.NoneFilter
import com.dastanapps.mediasdk.opengles.gpu.filter.SharpenFilter
import com.iaandroid.tutsopengles.R
import com.iaandroid.tutsopengles.fbo.EZRenderer
import kotlinx.android.synthetic.main.activity_frames.*
/**
* Created by dastan on 05/09/2018.
* [email protected]
* 05/09/2018 11:23
*/
class FramesActivity : Activity() {
private val glSurfaceView: GLSurfaceView by lazy {
findViewById<GLSurfaceView>(R.id.glsurfaceview)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
requestWindowFeature(Window.FEATURE_NO_TITLE)
setContentView(R.layout.activity_frames)
glSurfaceView.setEGLContextClientVersion(2)
glSurfaceView.setRenderer(EZRenderer(glSurfaceView))
}
}
Raw
SimpleFBORender.kt
package com.iaandroid.tutsopengles.fbo
import android.graphics.Bitmap
import android.opengl.GLES20
import com.dastanapps.mediasdk.opengles.gpu.OpenGlUtils
import java.nio.ByteBuffer
import java.nio.ByteOrder
import java.nio.FloatBuffer
/**
* Reference : http://opengles2learning.blogspot.com/2014/02/render-to-texture-rtt.html?m=1
*/
class SimpleFBORender {
protected var mVertexShader = DEFAULT_VERTEX_SHADER
protected var mFragmentShader = DEFAULT_FRAGMENT_SHADER
protected lateinit var mWorldVertices: FloatBuffer
protected lateinit var mTextureVertices: FloatBuffer
@JvmField
protected var mProgramHandle: Int = 0
protected var mVertexShaderHandle: Int = 0
protected var mFragmentShaderHandle: Int = 0
protected var mTextureHandle: Int = 0
protected var mPositionHandle: Int = 0
protected var mTextureCoordHandle: Int = 0
protected var mTextureIn: Int = 0
init {
val vertices = floatArrayOf(-0.5f, -0.5f, 0.5f, -0.5f, -0.5f, 0.5f, 0.5f, 0.5f)
mWorldVertices = ByteBuffer.allocateDirect(vertices.size * 4)
.order(ByteOrder.nativeOrder()).asFloatBuffer()
mWorldVertices.put(vertices).position(0)
val texData0 = floatArrayOf(0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f)
mTextureVertices = ByteBuffer.allocateDirect(texData0.size * 4)
.order(ByteOrder.nativeOrder()).asFloatBuffer()
mTextureVertices.put(texData0)?.position(0)
}
fun initHandlers(bitmap: Bitmap) {
mProgramHandle = com.raywenderlich.GLUtils.loadProgram(mVertexShader, mFragmentShader)
mPositionHandle = GLES20.glGetAttribLocation(mProgramHandle, ATTRIBUTE_POSITION)
mTextureCoordHandle = GLES20.glGetAttribLocation(mProgramHandle, ATTRIBUTE_TEXTURE_COORD)
mTextureHandle = GLES20.glGetUniformLocation(mProgramHandle, UNIFORM_TEXTURE_0)
mTextureIn = OpenGlUtils.loadTexture(bitmap, mTextureIn, true)
}
private val mRenderToTextureFBO = IntArray(1)
val mFBOTextureR = IntArray(1)
val mRenderBufferFBO = IntArray(1)
fun initFBO() {
GLES20.glGenTextures(1, mFBOTextureR, 0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mFBOTextureR[0])
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST)
GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, 256, 256, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null)
GLES20.glGenFramebuffers(1, mRenderToTextureFBO, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mRenderToTextureFBO[0])
GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, mFBOTextureR[0], 0)
GLES20.glGenRenderbuffers(1, mRenderBufferFBO, 0)
GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, mRenderBufferFBO[0])
GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, 256, 256)
GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, mRenderBufferFBO[0])
/** Check FBO is complete and OK */
val iResult = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER)
if (iResult != GLES20.GL_FRAMEBUFFER_COMPLETE) {
throw RuntimeException("Error: Frame Buffer Status is not complete. Terminated.")
}
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0)
}
private var mWidth: Int = 0
private var mHeight: Int = 0
fun setRenderSize(width: Int, height: Int) {
mWidth = width
mHeight = height
GLES20.glViewport(0, 0, width, height)
}
fun onDrawFrame() {
prepareFBOTexture()
/**=========================================**/
useFBOTexture()
}
fun useFBOTexture() {
/** Use blue background color */
GLES20.glClearColor(0.0f, 0.2f, 0.3f, 1.0f)
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT or GLES20.GL_COLOR_BUFFER_BIT)
GLES20.glViewport(0, 0, mWidth, mHeight)
GLES20.glUseProgram(mProgramHandle)
mWorldVertices.position(0)
GLES20.glVertexAttribPointer(mPositionHandle, 2, GLES20.GL_FLOAT, false, 8, mWorldVertices)
GLES20.glEnableVertexAttribArray(mPositionHandle)
mTextureVertices.position(0)
GLES20.glVertexAttribPointer(mTextureCoordHandle, 2, GLES20.GL_FLOAT, false, 8, mTextureVertices)
GLES20.glEnableVertexAttribArray(mTextureCoordHandle)
GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mFBOTextureR[0])
GLES20.glUniform1i(mTextureHandle, 0)
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
}
fun prepareFBOTexture() {
/** Enable frame buffer to start rendering into it */
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mRenderToTextureFBO[0])
/** Create an Orange back ground */
GLES20.glClearColor(1.0f, 0.5f, 0.0f, 1.0f)
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT or GLES20.GL_COLOR_BUFFER_BIT)
GLES20.glViewport(0, 0, 256, 256)
GLES20.glUseProgram(mProgramHandle)
mWorldVertices.position(0)
GLES20.glVertexAttribPointer(mPositionHandle, 2, GLES20.GL_FLOAT, false, 8, mWorldVertices)
GLES20.glEnableVertexAttribArray(mPositionHandle)
mTextureVertices.position(0)
GLES20.glVertexAttribPointer(mTextureCoordHandle, 2, GLES20.GL_FLOAT, false, 8, mTextureVertices)
GLES20.glEnableVertexAttribArray(mTextureCoordHandle)
/** set the Texture unit 0 active and bind the texture to it */
GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureIn)
GLES20.glUniform1i(mTextureHandle, 0)
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
}
companion object {
val ATTRIBUTE_POSITION = "position"
val ATTRIBUTE_TEXTURE_COORD = "inputTextureCoordinate"
val VARYING_TEXTURE_COORD = "textureCoordinate"
val UNIFORM_TEXTURE = "inputImageTexture"
val UNIFORM_TEXTURE_0 = UNIFORM_TEXTURE
@JvmField
var DEFAULT_VERTEX_SHADER = ("attribute vec4 " + ATTRIBUTE_POSITION + ";\n"
+ "attribute vec2 " + ATTRIBUTE_TEXTURE_COORD + ";\n"
+ "varying vec2 " + VARYING_TEXTURE_COORD + ";\n"
+ "void main() {\n"
+ " " + VARYING_TEXTURE_COORD + " = " + ATTRIBUTE_TEXTURE_COORD + ";\n"
+ " gl_Position = " + ATTRIBUTE_POSITION + ";\n"
+ "}\n")
var DEFAULT_FRAGMENT_SHADER = ("precision mediump float;\n"
+ "uniform sampler2D " + UNIFORM_TEXTURE_0 + ";\n"
+ "varying vec2 " + VARYING_TEXTURE_COORD + ";\n"
+ "void main(){\n"
+ " gl_FragColor = texture2D(" + UNIFORM_TEXTURE_0 + "," + VARYING_TEXTURE_COORD + ")" + ";\n"
+ "}\n")
}
}
Raw
SimpleFBORender2.kt
package com.iaandroid.tutsopengles.fbo
import android.content.Context
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.opengl.GLES20
import android.opengl.GLUtils
import android.text.TextUtils
import com.dastanapps.mediasdk.opengles.gpu.fbo.LruBitmapCache
import java.io.IOException
import java.io.InputStream
import java.nio.ByteBuffer
import java.nio.ByteOrder
import java.nio.FloatBuffer
import java.util.*
/**
* References :
* http://opengles2learning.blogspot.com/2014/02/render-to-texture-rtt.html?m=1
* https://github.com/uestccokey/EZFilter
*/
class SimpleFBORender2(val context: Context) {
protected var mVertexShader = DEFAULT_VERTEX_SHADER
protected var mFragmentShader = DEFAULT_FRAGMENT_SHADER
protected var mWorldVertices: FloatBuffer
protected var mTextureVertices: FloatBuffer
@JvmField
protected var mProgramHandle: Int = 0
protected var mVertexShaderHandle: Int = 0
protected var mFragmentShaderHandle: Int = 0
protected var mTextureHandle: Int = 0
protected var mPositionHandle: Int = 0
protected var mTextureCoordHandle: Int = 0
protected var mTextureIn: Int = 0
internal var paths: MutableList<String> = ArrayList()
init {
val vertices = floatArrayOf(-0.5f, -0.5f, 0.5f, -0.5f, -0.5f, 0.5f, 0.5f, 0.5f)
mWorldVertices = ByteBuffer.allocateDirect(vertices.size * 4)
.order(ByteOrder.nativeOrder()).asFloatBuffer()
mWorldVertices.put(vertices).position(0)
val texData0 = floatArrayOf(0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f)
mTextureVertices = ByteBuffer.allocateDirect(texData0.size * 4)
.order(ByteOrder.nativeOrder()).asFloatBuffer()
mTextureVertices.put(texData0)?.position(0)
paths.addAll(convert(context, "lear"))
}
fun initHandlers(bitmap: Bitmap) {
mProgramHandle = com.raywenderlich.GLUtils.loadProgram(mVertexShader, mFragmentShader)
mPositionHandle = GLES20.glGetAttribLocation(mProgramHandle, ATTRIBUTE_POSITION)
mTextureCoordHandle = GLES20.glGetAttribLocation(mProgramHandle, ATTRIBUTE_TEXTURE_COORD)
mTextureHandle = GLES20.glGetUniformLocation(mProgramHandle, UNIFORM_TEXTURE_0)
//mTextureIn = OpenGlUtils.loadTexture(bitmap, mTextureIn, true)
}
private val mRenderToTextureFBO = IntArray(1)
val mFBOTextureR = IntArray(1)
val mRenderBufferFBO = IntArray(1)
fun initFBO() {
GLES20.glGenTextures(1, mFBOTextureR, 0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mFBOTextureR[0])
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR)
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST)
GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, 256, 256, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null)
GLES20.glGenFramebuffers(1, mRenderToTextureFBO, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mRenderToTextureFBO[0])
GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, mFBOTextureR[0], 0)
GLES20.glGenRenderbuffers(1, mRenderBufferFBO, 0)
GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, mRenderBufferFBO[0])
GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, 256, 256)
GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, mRenderBufferFBO[0])
/** Check FBO is complete and OK */
val iResult = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER)
if (iResult != GLES20.GL_FRAMEBUFFER_COMPLETE) {
throw RuntimeException("Error: Frame Buffer Status is not complete. Terminated.")
}
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0)
}
private var mWidth: Int = 0
private var mHeight: Int = 0
fun setRenderSize(width: Int, height: Int) {
mWidth = width
mHeight = height
GLES20.glViewport(0, 0, width, height)
}
fun onDrawFrame() {
prepareFBOTexture()
/**=========================================**/
useFBOTexture()
}
private var mStartTime: Long = -1L
private val mBitmapCache = LruBitmapCache.getSingleInstance()
fun useFBOTexture() {
/** Use blue background color */
GLES20.glClearColor(0.0f, 0.2f, 0.3f, 1.0f)
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT or GLES20.GL_COLOR_BUFFER_BIT)
GLES20.glViewport(0, 0, mWidth, mHeight)
GLES20.glUseProgram(mProgramHandle)
// mWorldVertices.position(0)
// GLES20.glVertexAttribPointer(mPositionHandle, 2, GLES20.GL_FLOAT, false, 8, mWorldVertices)
// GLES20.glEnableVertexAttribArray(mPositionHandle)
//
// mTextureVertices.position(0)
// GLES20.glVertexAttribPointer(mTextureCoordHandle, 2, GLES20.GL_FLOAT, false, 8, mTextureVertices)
// GLES20.glEnableVertexAttribArray(mTextureCoordHandle)
GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mFBOTextureR[0])
GLES20.glUniform1i(mTextureHandle, 0)
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
}
fun prepareFBOTexture() {
/** Enable frame buffer to start rendering into it */
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, mRenderToTextureFBO[0])
/** Create an Orange back ground */
GLES20.glClearColor(1.0f, 0.5f, 0.0f, 1.0f)
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT or GLES20.GL_COLOR_BUFFER_BIT)
GLES20.glViewport(0, 0, 256, 256)
GLES20.glUseProgram(mProgramHandle)
mWorldVertices.position(0)
GLES20.glVertexAttribPointer(mPositionHandle, 2, GLES20.GL_FLOAT, false, 8, mWorldVertices)
GLES20.glEnableVertexAttribArray(mPositionHandle)
mTextureVertices.position(0)
GLES20.glVertexAttribPointer(mTextureCoordHandle, 2, GLES20.GL_FLOAT, false, 8, mTextureVertices)
GLES20.glEnableVertexAttribArray(mTextureCoordHandle)
if (mStartTime == -1L) {
mStartTime = System.currentTimeMillis()
}
val currentTime = System.currentTimeMillis()
val position = (currentTime - mStartTime) % 2000
val i = Math.round((paths.size - 1) * 1.0f / 2000 * position)
val path = paths[i]
var bitmap: Bitmap? = mBitmapCache.get(path)
if (bitmap == null || bitmap.isRecycled) {
bitmap = GetFromAssets(context, path)
if (bitmap != null && !bitmap.isRecycled) {
mBitmapCache.put(path, bitmap)
} else {
return
}
}
mTextureIn = loadTexture(bitmap, mTextureIn, true)
/** set the Texture unit 0 active and bind the texture to it */
GLES20.glActiveTexture(GLES20.GL_TEXTURE0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureIn)
GLES20.glUniform1i(mTextureHandle, 0)
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0)
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
}
private val NO_TEXTURE = 0
private fun loadTexture(img: Bitmap, usedTexId: Int, recycle: Boolean): Int {
val textures = IntArray(1)
if (usedTexId == NO_TEXTURE) {
GLES20.glGenTextures(1, textures, 0)
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textures[0])
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR.toFloat())
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST.toFloat())
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT.toFloat())
GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT.toFloat())
GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, img, 0)
} else {
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, usedTexId)
GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, img)
textures[0] = usedTexId
}
if (recycle) {
img.recycle()
}
return textures[0]
}
private fun convert(context: Context, dir: String): List<String> {
var names: Array<String>? = null
try {
names = context.assets.list(dir)
} catch (e: IOException) {
e.printStackTrace()
}
val paths = ArrayList<String>()
if (names != null) {
for (name in names) {
paths.add("$dir/$name")
}
}
paths.sortWith(Comparator { o1, o2 ->
val sp1 = o1.split("_".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
val sp2 = o2.split("_".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
var num1 = sp1[sp1.size - 1]
if (num1.contains(".")) {
num1 = num1.substring(0, num1.indexOf("."))
}
if (!TextUtils.isDigitsOnly(num1)) {
num1 = num1.substring(num1.length - 2)
}
var num2 = sp2[sp2.size - 1]
if (num2.contains(".")) {
num2 = num2.substring(0, num2.indexOf("."))
}
if (!TextUtils.isDigitsOnly(num2)) {
num2 = num2.substring(num2.length - 2)
}
parseInt(num1) - parseInt(num2)
})
return paths
}
private fun parseInt(`val`: String): Int {
if (TextUtils.isEmpty(`val`)) return 0
try {
return Integer.parseInt(`val`)
} catch (e: NumberFormatException) {
e.printStackTrace()
}
return 0
}
fun GetFromAssets(context: Context, name: String): Bitmap? {
var img: Bitmap? = null
//get asset manager
val assetManager = context.assets
val istr: InputStream
try {
//open image to input stream
istr = assetManager.open(name)
//decode input stream
img = BitmapFactory.decodeStream(istr)
} catch (e: IOException) {
e.printStackTrace()
}
return img
}
companion object {
val ATTRIBUTE_POSITION = "position"
val ATTRIBUTE_TEXTURE_COORD = "inputTextureCoordinate"
val VARYING_TEXTURE_COORD = "textureCoordinate"
val UNIFORM_TEXTURE = "inputImageTexture"
val UNIFORM_TEXTURE_0 = UNIFORM_TEXTURE
@JvmField
var DEFAULT_VERTEX_SHADER = ("attribute vec4 " + ATTRIBUTE_POSITION + ";\n"
+ "attribute vec2 " + ATTRIBUTE_TEXTURE_COORD + ";\n"
+ "varying vec2 " + VARYING_TEXTURE_COORD + ";\n"
+ "void main() {\n"
+ " " + VARYING_TEXTURE_COORD + " = " + ATTRIBUTE_TEXTURE_COORD + ";\n"
+ " gl_Position = " + ATTRIBUTE_POSITION + ";\n"
+ "}\n")
var DEFAULT_FRAGMENT_SHADER = ("precision mediump float;\n"
+ "uniform sampler2D " + UNIFORM_TEXTURE_0 + ";\n"
+ "varying vec2 " + VARYING_TEXTURE_COORD + ";\n"
+ "void main(){\n"
+ " gl_FragColor = texture2D(" + UNIFORM_TEXTURE_0 + "," + VARYING_TEXTURE_COORD + ")" + ";\n"
+ "}\n")
}
}
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