| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.nativecodec; |
| |
| import android.graphics.SurfaceTexture; |
| import android.util.Log; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.FloatBuffer; |
| |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.opengles.GL10; |
| |
| import android.content.Context; |
| import android.opengl.GLES20; |
| import android.opengl.GLSurfaceView; |
| import android.opengl.Matrix; |
| import android.os.SystemClock; |
| import android.util.AttributeSet; |
| |
| public class MyGLSurfaceView extends GLSurfaceView { |
| |
| MyRenderer mRenderer; |
| |
| public MyGLSurfaceView(Context context) { |
| this(context, null); |
| } |
| |
| public MyGLSurfaceView(Context context, AttributeSet attributeSet) { |
| super(context, attributeSet); |
| init(); |
| } |
| |
| private void init() { |
| setEGLContextClientVersion(2); |
| mRenderer = new MyRenderer(); |
| setRenderer(mRenderer); |
| Log.i("@@@", "setrenderer"); |
| } |
| |
| @Override |
| public void onPause() { |
| mRenderer.onPause(); |
| super.onPause(); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| mRenderer.onResume(); |
| } |
| |
| public SurfaceTexture getSurfaceTexture() { |
| return mRenderer.getSurfaceTexture(); |
| } |
| } |
| |
| class MyRenderer implements GLSurfaceView.Renderer, SurfaceTexture.OnFrameAvailableListener { |
| |
| public MyRenderer() { |
| mVertices = ByteBuffer.allocateDirect(mVerticesData.length |
| * FLOAT_SIZE_BYTES).order(ByteOrder.nativeOrder()).asFloatBuffer(); |
| mVertices.put(mVerticesData).position(0); |
| |
| Matrix.setIdentityM(mSTMatrix, 0); |
| } |
| public void onPause() { |
| } |
| |
| public void onResume() { |
| mLastTime = SystemClock.elapsedRealtimeNanos(); |
| } |
| |
| @Override |
| public void onDrawFrame(GL10 glUnused) { |
| synchronized(this) { |
| if (updateSurface) { |
| mSurface.updateTexImage(); |
| |
| mSurface.getTransformMatrix(mSTMatrix); |
| updateSurface = false; |
| } |
| } |
| |
| // Ignore the passed-in GL10 interface, and use the GLES20 |
| // class's static methods instead. |
| GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT); |
| GLES20.glUseProgram(mProgram); |
| checkGlError("glUseProgram"); |
| |
| GLES20.glActiveTexture(GLES20.GL_TEXTURE0); |
| GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureID); |
| |
| mVertices.position(VERTICES_DATA_POS_OFFSET); |
| GLES20.glVertexAttribPointer(maPositionHandle, 3, GLES20.GL_FLOAT, false, |
| VERTICES_DATA_STRIDE_BYTES, mVertices); |
| checkGlError("glVertexAttribPointer maPosition"); |
| GLES20.glEnableVertexAttribArray(maPositionHandle); |
| checkGlError("glEnableVertexAttribArray maPositionHandle"); |
| |
| mVertices.position(VERTICES_DATA_UV_OFFSET); |
| GLES20.glVertexAttribPointer(maTextureHandle, 3, GLES20.GL_FLOAT, false, |
| VERTICES_DATA_STRIDE_BYTES, mVertices); |
| checkGlError("glVertexAttribPointer maTextureHandle"); |
| GLES20.glEnableVertexAttribArray(maTextureHandle); |
| checkGlError("glEnableVertexAttribArray maTextureHandle"); |
| |
| long now = SystemClock.elapsedRealtimeNanos(); |
| mRunTime += (now - mLastTime); |
| mLastTime = now; |
| double d = ((double)mRunTime) / 1000000000; |
| Matrix.setIdentityM(mMMatrix, 0); |
| Matrix.rotateM(mMMatrix, 0, 30, (float)Math.sin(d), (float)Math.cos(d), 0); |
| Matrix.multiplyMM(mMVPMatrix, 0, mVMatrix, 0, mMMatrix, 0); |
| Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0); |
| |
| GLES20.glUniformMatrix4fv(muMVPMatrixHandle, 1, false, mMVPMatrix, 0); |
| GLES20.glUniformMatrix4fv(muSTMatrixHandle, 1, false, mSTMatrix, 0); |
| |
| GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4); |
| checkGlError("glDrawArrays"); |
| } |
| |
| @Override |
| public void onSurfaceChanged(GL10 glUnused, int width, int height) { |
| // Ignore the passed-in GL10 interface, and use the GLES20 |
| // class's static methods instead. |
| GLES20.glViewport(0, 0, width, height); |
| mRatio = (float) width / height; |
| Matrix.frustumM(mProjMatrix, 0, -mRatio, mRatio, -1, 1, 3, 7); |
| } |
| |
| @Override |
| public void onSurfaceCreated(GL10 glUnused, EGLConfig config) { |
| // Ignore the passed-in GL10 interface, and use the GLES20 |
| // class's static methods instead. |
| |
| /* Set up alpha blending and an Android background color */ |
| GLES20.glEnable(GLES20.GL_BLEND); |
| GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE_MINUS_SRC_ALPHA); |
| GLES20.glClearColor(0.643f, 0.776f, 0.223f, 1.0f); |
| |
| /* Set up shaders and handles to their variables */ |
| mProgram = createProgram(mVertexShader, mFragmentShader); |
| if (mProgram == 0) { |
| return; |
| } |
| maPositionHandle = GLES20.glGetAttribLocation(mProgram, "aPosition"); |
| checkGlError("glGetAttribLocation aPosition"); |
| if (maPositionHandle == -1) { |
| throw new RuntimeException("Could not get attrib location for aPosition"); |
| } |
| maTextureHandle = GLES20.glGetAttribLocation(mProgram, "aTextureCoord"); |
| checkGlError("glGetAttribLocation aTextureCoord"); |
| if (maTextureHandle == -1) { |
| throw new RuntimeException("Could not get attrib location for aTextureCoord"); |
| } |
| |
| muMVPMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uMVPMatrix"); |
| checkGlError("glGetUniformLocation uMVPMatrix"); |
| if (muMVPMatrixHandle == -1) { |
| throw new RuntimeException("Could not get attrib location for uMVPMatrix"); |
| } |
| |
| muSTMatrixHandle = GLES20.glGetUniformLocation(mProgram, "uSTMatrix"); |
| checkGlError("glGetUniformLocation uSTMatrix"); |
| if (muMVPMatrixHandle == -1) { |
| throw new RuntimeException("Could not get attrib location for uSTMatrix"); |
| } |
| |
| checkGlError("glGetUniformLocation uCRatio"); |
| if (muMVPMatrixHandle == -1) { |
| throw new RuntimeException("Could not get attrib location for uCRatio"); |
| } |
| |
| /* |
| * Create our texture. This has to be done each time the |
| * surface is created. |
| */ |
| |
| int[] textures = new int[1]; |
| GLES20.glGenTextures(1, textures, 0); |
| |
| mTextureID = textures[0]; |
| GLES20.glBindTexture(GL_TEXTURE_EXTERNAL_OES, mTextureID); |
| checkGlError("glBindTexture mTextureID"); |
| |
| // Can't do mipmapping with camera source |
| GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MIN_FILTER, |
| GLES20.GL_NEAREST); |
| GLES20.glTexParameterf(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_MAG_FILTER, |
| GLES20.GL_LINEAR); |
| // Clamp to edge is the only option |
| GLES20.glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_S, |
| GLES20.GL_CLAMP_TO_EDGE); |
| GLES20.glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GLES20.GL_TEXTURE_WRAP_T, |
| GLES20.GL_CLAMP_TO_EDGE); |
| checkGlError("glTexParameteri mTextureID"); |
| |
| /* |
| * Create the SurfaceTexture that will feed this textureID, and pass it to the camera |
| */ |
| |
| mSurface = new SurfaceTexture(mTextureID); |
| mSurface.setOnFrameAvailableListener(this); |
| |
| Matrix.setLookAtM(mVMatrix, 0, 0, 0, 4f, 0f, 0f, 0f, 0f, 1.0f, 0.0f); |
| |
| synchronized(this) { |
| updateSurface = false; |
| } |
| } |
| |
| @Override |
| synchronized public void onFrameAvailable(SurfaceTexture surface) { |
| /* For simplicity, SurfaceTexture calls here when it has new |
| * data available. Call may come in from some random thread, |
| * so let's be safe and use synchronize. No OpenGL calls can be done here. |
| */ |
| updateSurface = true; |
| //Log.v(TAG, "onFrameAvailable " + surface.getTimestamp()); |
| } |
| |
| private int loadShader(int shaderType, String source) { |
| int shader = GLES20.glCreateShader(shaderType); |
| if (shader != 0) { |
| GLES20.glShaderSource(shader, source); |
| GLES20.glCompileShader(shader); |
| int[] compiled = new int[1]; |
| GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0); |
| if (compiled[0] == 0) { |
| Log.e(TAG, "Could not compile shader " + shaderType + ":"); |
| Log.e(TAG, GLES20.glGetShaderInfoLog(shader)); |
| GLES20.glDeleteShader(shader); |
| shader = 0; |
| } |
| } |
| return shader; |
| } |
| |
| private int createProgram(String vertexSource, String fragmentSource) { |
| int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexSource); |
| if (vertexShader == 0) { |
| return 0; |
| } |
| int pixelShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource); |
| if (pixelShader == 0) { |
| return 0; |
| } |
| |
| int program = GLES20.glCreateProgram(); |
| if (program != 0) { |
| GLES20.glAttachShader(program, vertexShader); |
| checkGlError("glAttachShader"); |
| GLES20.glAttachShader(program, pixelShader); |
| checkGlError("glAttachShader"); |
| GLES20.glLinkProgram(program); |
| int[] linkStatus = new int[1]; |
| GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0); |
| if (linkStatus[0] != GLES20.GL_TRUE) { |
| Log.e(TAG, "Could not link program: "); |
| Log.e(TAG, GLES20.glGetProgramInfoLog(program)); |
| GLES20.glDeleteProgram(program); |
| program = 0; |
| } |
| } |
| return program; |
| } |
| |
| private void checkGlError(String op) { |
| int error; |
| while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) { |
| Log.e(TAG, op + ": glError " + error); |
| throw new RuntimeException(op + ": glError " + error); |
| } |
| } |
| |
| private static final int FLOAT_SIZE_BYTES = 4; |
| private static final int VERTICES_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES; |
| private static final int VERTICES_DATA_POS_OFFSET = 0; |
| private static final int VERTICES_DATA_UV_OFFSET = 3; |
| private final float[] mVerticesData = { |
| // X, Y, Z, U, V |
| -1.25f, -1.0f, 0, 0.f, 0.f, |
| 1.25f, -1.0f, 0, 1.f, 0.f, |
| -1.25f, 1.0f, 0, 0.f, 1.f, |
| 1.25f, 1.0f, 0, 1.f, 1.f, |
| }; |
| |
| private FloatBuffer mVertices; |
| |
| private final String mVertexShader = |
| "uniform mat4 uMVPMatrix;\n" + |
| "uniform mat4 uSTMatrix;\n" + |
| "attribute vec4 aPosition;\n" + |
| "attribute vec4 aTextureCoord;\n" + |
| "varying vec2 vTextureCoord;\n" + |
| "void main() {\n" + |
| " gl_Position = uMVPMatrix * aPosition;\n" + |
| " vTextureCoord = (uSTMatrix * aTextureCoord).xy;\n" + |
| "}\n"; |
| |
| private final String mFragmentShader = |
| "#extension GL_OES_EGL_image_external : require\n" + |
| "precision mediump float;\n" + |
| "varying vec2 vTextureCoord;\n" + |
| "uniform samplerExternalOES sTexture;\n" + |
| "void main() {\n" + |
| " gl_FragColor = texture2D(sTexture, vTextureCoord);\n" + |
| "}\n"; |
| |
| private float[] mMVPMatrix = new float[16]; |
| private float[] mProjMatrix = new float[16]; |
| private float[] mMMatrix = new float[16]; |
| private float[] mVMatrix = new float[16]; |
| private float[] mSTMatrix = new float[16]; |
| |
| private int mProgram; |
| private int mTextureID; |
| private int muMVPMatrixHandle; |
| private int muSTMatrixHandle; |
| private int maPositionHandle; |
| private int maTextureHandle; |
| |
| private float mRatio = 1.0f; |
| private SurfaceTexture mSurface; |
| private boolean updateSurface = false; |
| private long mLastTime = -1; |
| private long mRunTime = 0; |
| |
| private static final String TAG = "MyRenderer"; |
| |
| // Magic key |
| private static final int GL_TEXTURE_EXTERNAL_OES = 0x8D65; |
| |
| public SurfaceTexture getSurfaceTexture() { |
| return mSurface; |
| } |
| } |
