| /* |
| * Copyright (C) 2009 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.android.systemui; |
| |
| import static android.opengl.GLES20.*; |
| import static javax.microedition.khronos.egl.EGL10.*; |
| |
| import android.app.ActivityManager; |
| import android.app.WallpaperManager; |
| import android.content.ComponentCallbacks2; |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Region.Op; |
| import android.opengl.GLUtils; |
| import android.os.SystemProperties; |
| import android.renderscript.Matrix4f; |
| import android.service.wallpaper.WallpaperService; |
| import android.util.Log; |
| import android.view.Display; |
| import android.view.DisplayInfo; |
| import android.view.MotionEvent; |
| import android.view.SurfaceHolder; |
| import android.view.WindowManager; |
| |
| import java.io.FileDescriptor; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.nio.FloatBuffer; |
| |
| import javax.microedition.khronos.egl.EGL10; |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.egl.EGLContext; |
| import javax.microedition.khronos.egl.EGLDisplay; |
| import javax.microedition.khronos.egl.EGLSurface; |
| |
| /** |
| * Default built-in wallpaper that simply shows a static image. |
| */ |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class ImageWallpaper extends WallpaperService { |
| private static final String TAG = "ImageWallpaper"; |
| private static final String GL_LOG_TAG = "ImageWallpaperGL"; |
| private static final boolean DEBUG = false; |
| private static final String PROPERTY_KERNEL_QEMU = "ro.kernel.qemu"; |
| |
| static final boolean FIXED_SIZED_SURFACE = true; |
| static final boolean USE_OPENGL = true; |
| |
| WallpaperManager mWallpaperManager; |
| |
| DrawableEngine mEngine; |
| |
| boolean mIsHwAccelerated; |
| |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| mWallpaperManager = (WallpaperManager) getSystemService(WALLPAPER_SERVICE); |
| |
| //noinspection PointlessBooleanExpression,ConstantConditions |
| if (FIXED_SIZED_SURFACE && USE_OPENGL) { |
| if (!isEmulator()) { |
| mIsHwAccelerated = ActivityManager.isHighEndGfx(); |
| } |
| } |
| } |
| |
| @Override |
| public void onTrimMemory(int level) { |
| if (mEngine != null) { |
| mEngine.trimMemory(level); |
| } |
| } |
| |
| private static boolean isEmulator() { |
| return "1".equals(SystemProperties.get(PROPERTY_KERNEL_QEMU, "0")); |
| } |
| |
| @Override |
| public Engine onCreateEngine() { |
| mEngine = new DrawableEngine(); |
| return mEngine; |
| } |
| |
| class DrawableEngine extends Engine { |
| static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098; |
| static final int EGL_OPENGL_ES2_BIT = 4; |
| |
| Bitmap mBackground; |
| int mBackgroundWidth = -1, mBackgroundHeight = -1; |
| int mLastSurfaceWidth = -1, mLastSurfaceHeight = -1; |
| int mLastRotation = -1; |
| float mXOffset = 0.5f; |
| float mYOffset = 0.5f; |
| float mScale = 1f; |
| |
| private Display mDefaultDisplay; |
| private final DisplayInfo mTmpDisplayInfo = new DisplayInfo(); |
| |
| boolean mVisible = true; |
| boolean mOffsetsChanged; |
| int mLastXTranslation; |
| int mLastYTranslation; |
| |
| private EGL10 mEgl; |
| private EGLDisplay mEglDisplay; |
| private EGLConfig mEglConfig; |
| private EGLContext mEglContext; |
| private EGLSurface mEglSurface; |
| |
| private static final String sSimpleVS = |
| "attribute vec4 position;\n" + |
| "attribute vec2 texCoords;\n" + |
| "varying vec2 outTexCoords;\n" + |
| "uniform mat4 projection;\n" + |
| "\nvoid main(void) {\n" + |
| " outTexCoords = texCoords;\n" + |
| " gl_Position = projection * position;\n" + |
| "}\n\n"; |
| private static final String sSimpleFS = |
| "precision mediump float;\n\n" + |
| "varying vec2 outTexCoords;\n" + |
| "uniform sampler2D texture;\n" + |
| "\nvoid main(void) {\n" + |
| " gl_FragColor = texture2D(texture, outTexCoords);\n" + |
| "}\n\n"; |
| |
| private static final int FLOAT_SIZE_BYTES = 4; |
| private static final int TRIANGLE_VERTICES_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES; |
| private static final int TRIANGLE_VERTICES_DATA_POS_OFFSET = 0; |
| private static final int TRIANGLE_VERTICES_DATA_UV_OFFSET = 3; |
| |
| private int mRotationAtLastSurfaceSizeUpdate = -1; |
| private int mDisplayWidthAtLastSurfaceSizeUpdate = -1; |
| private int mDisplayHeightAtLastSurfaceSizeUpdate = -1; |
| |
| private int mLastRequestedWidth = -1; |
| private int mLastRequestedHeight = -1; |
| |
| public DrawableEngine() { |
| super(); |
| setFixedSizeAllowed(true); |
| } |
| |
| public void trimMemory(int level) { |
| if (level >= ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW && |
| mBackground != null) { |
| if (DEBUG) { |
| Log.d(TAG, "trimMemory"); |
| } |
| mBackground.recycle(); |
| mBackground = null; |
| mBackgroundWidth = -1; |
| mBackgroundHeight = -1; |
| mWallpaperManager.forgetLoadedWallpaper(); |
| } |
| } |
| |
| @Override |
| public void onCreate(SurfaceHolder surfaceHolder) { |
| if (DEBUG) { |
| Log.d(TAG, "onCreate"); |
| } |
| |
| super.onCreate(surfaceHolder); |
| |
| mDefaultDisplay = getSystemService(WindowManager.class).getDefaultDisplay(); |
| |
| updateSurfaceSize(surfaceHolder, getDefaultDisplayInfo()); |
| |
| setOffsetNotificationsEnabled(false); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| mBackground = null; |
| mWallpaperManager.forgetLoadedWallpaper(); |
| } |
| |
| void updateSurfaceSize(SurfaceHolder surfaceHolder, DisplayInfo displayInfo) { |
| // Load background image dimensions, if we haven't saved them yet |
| if (mBackgroundWidth <= 0 || mBackgroundHeight <= 0) { |
| // Need to load the image to get dimensions |
| mWallpaperManager.forgetLoadedWallpaper(); |
| updateWallpaperLocked(); |
| if (mBackgroundWidth <= 0 || mBackgroundHeight <= 0) { |
| // Default to the display size if we can't find the dimensions |
| mBackgroundWidth = displayInfo.logicalWidth; |
| mBackgroundHeight = displayInfo.logicalHeight; |
| } |
| } |
| |
| // Force the wallpaper to cover the screen in both dimensions |
| int surfaceWidth = Math.max(displayInfo.logicalWidth, mBackgroundWidth); |
| int surfaceHeight = Math.max(displayInfo.logicalHeight, mBackgroundHeight); |
| |
| if (FIXED_SIZED_SURFACE) { |
| // Used a fixed size surface, because we are special. We can do |
| // this because we know the current design of window animations doesn't |
| // cause this to break. |
| surfaceHolder.setFixedSize(surfaceWidth, surfaceHeight); |
| mLastRequestedWidth = surfaceWidth; |
| mLastRequestedHeight = surfaceHeight; |
| } else { |
| surfaceHolder.setSizeFromLayout(); |
| } |
| } |
| |
| @Override |
| public void onVisibilityChanged(boolean visible) { |
| if (DEBUG) { |
| Log.d(TAG, "onVisibilityChanged: mVisible, visible=" + mVisible + ", " + visible); |
| } |
| |
| if (mVisible != visible) { |
| if (DEBUG) { |
| Log.d(TAG, "Visibility changed to visible=" + visible); |
| } |
| mVisible = visible; |
| drawFrame(); |
| } |
| } |
| |
| @Override |
| public void onTouchEvent(MotionEvent event) { |
| super.onTouchEvent(event); |
| } |
| |
| @Override |
| public void onOffsetsChanged(float xOffset, float yOffset, |
| float xOffsetStep, float yOffsetStep, |
| int xPixels, int yPixels) { |
| if (DEBUG) { |
| Log.d(TAG, "onOffsetsChanged: xOffset=" + xOffset + ", yOffset=" + yOffset |
| + ", xOffsetStep=" + xOffsetStep + ", yOffsetStep=" + yOffsetStep |
| + ", xPixels=" + xPixels + ", yPixels=" + yPixels); |
| } |
| |
| if (mXOffset != xOffset || mYOffset != yOffset) { |
| if (DEBUG) { |
| Log.d(TAG, "Offsets changed to (" + xOffset + "," + yOffset + ")."); |
| } |
| mXOffset = xOffset; |
| mYOffset = yOffset; |
| mOffsetsChanged = true; |
| } |
| drawFrame(); |
| } |
| |
| @Override |
| public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) { |
| if (DEBUG) { |
| Log.d(TAG, "onSurfaceChanged: width=" + width + ", height=" + height); |
| } |
| |
| super.onSurfaceChanged(holder, format, width, height); |
| |
| drawFrame(); |
| } |
| |
| @Override |
| public void onSurfaceDestroyed(SurfaceHolder holder) { |
| super.onSurfaceDestroyed(holder); |
| mLastSurfaceWidth = mLastSurfaceHeight = -1; |
| } |
| |
| @Override |
| public void onSurfaceCreated(SurfaceHolder holder) { |
| super.onSurfaceCreated(holder); |
| mLastSurfaceWidth = mLastSurfaceHeight = -1; |
| } |
| |
| @Override |
| public void onSurfaceRedrawNeeded(SurfaceHolder holder) { |
| if (DEBUG) { |
| Log.d(TAG, "onSurfaceRedrawNeeded"); |
| } |
| super.onSurfaceRedrawNeeded(holder); |
| |
| drawFrame(); |
| } |
| |
| private DisplayInfo getDefaultDisplayInfo() { |
| mDefaultDisplay.getDisplayInfo(mTmpDisplayInfo); |
| return mTmpDisplayInfo; |
| } |
| |
| void drawFrame() { |
| try { |
| DisplayInfo displayInfo = getDefaultDisplayInfo(); |
| int newRotation = displayInfo.rotation; |
| |
| // Sometimes a wallpaper is not large enough to cover the screen in one dimension. |
| // Call updateSurfaceSize -- it will only actually do the update if the dimensions |
| // should change |
| if (newRotation != mLastRotation) { |
| // Update surface size (if necessary) |
| updateSurfaceSize(getSurfaceHolder(), displayInfo); |
| mRotationAtLastSurfaceSizeUpdate = newRotation; |
| mDisplayWidthAtLastSurfaceSizeUpdate = displayInfo.logicalWidth; |
| mDisplayHeightAtLastSurfaceSizeUpdate = displayInfo.logicalHeight; |
| } |
| SurfaceHolder sh = getSurfaceHolder(); |
| final Rect frame = sh.getSurfaceFrame(); |
| final int dw = frame.width(); |
| final int dh = frame.height(); |
| boolean surfaceDimensionsChanged = dw != mLastSurfaceWidth |
| || dh != mLastSurfaceHeight; |
| |
| boolean redrawNeeded = surfaceDimensionsChanged || newRotation != mLastRotation; |
| if (!redrawNeeded && !mOffsetsChanged) { |
| if (DEBUG) { |
| Log.d(TAG, "Suppressed drawFrame since redraw is not needed " |
| + "and offsets have not changed."); |
| } |
| return; |
| } |
| mLastRotation = newRotation; |
| |
| // Load bitmap if it is not yet loaded or if it was loaded at a different size |
| if (mBackground == null || surfaceDimensionsChanged) { |
| if (DEBUG) { |
| Log.d(TAG, "Reloading bitmap: mBackground, bgw, bgh, dw, dh = " + |
| mBackground + ", " + |
| ((mBackground == null) ? 0 : mBackground.getWidth()) + ", " + |
| ((mBackground == null) ? 0 : mBackground.getHeight()) + ", " + |
| dw + ", " + dh); |
| } |
| mWallpaperManager.forgetLoadedWallpaper(); |
| updateWallpaperLocked(); |
| if (mBackground == null) { |
| if (DEBUG) { |
| Log.d(TAG, "Unable to load bitmap"); |
| } |
| return; |
| } |
| if (DEBUG) { |
| if (dw != mBackground.getWidth() || dh != mBackground.getHeight()) { |
| Log.d(TAG, "Surface != bitmap dimensions: surface w/h, bitmap w/h: " + |
| dw + ", " + dh + ", " + mBackground.getWidth() + ", " + |
| mBackground.getHeight()); |
| } |
| } |
| } |
| |
| // Center the scaled image |
| mScale = Math.max(1f, Math.max(dw / (float) mBackground.getWidth(), |
| dh / (float) mBackground.getHeight())); |
| final int availw = dw - (int) (mBackground.getWidth() * mScale); |
| final int availh = dh - (int) (mBackground.getHeight() * mScale); |
| int xPixels = availw / 2; |
| int yPixels = availh / 2; |
| |
| // Adjust the image for xOffset/yOffset values. If window manager is handling offsets, |
| // mXOffset and mYOffset are set to 0.5f by default and therefore xPixels and yPixels |
| // will remain unchanged |
| final int availwUnscaled = dw - mBackground.getWidth(); |
| final int availhUnscaled = dh - mBackground.getHeight(); |
| if (availwUnscaled < 0) |
| xPixels += (int) (availwUnscaled * (mXOffset - .5f) + .5f); |
| if (availhUnscaled < 0) |
| yPixels += (int) (availhUnscaled * (mYOffset - .5f) + .5f); |
| |
| mOffsetsChanged = false; |
| if (surfaceDimensionsChanged) { |
| mLastSurfaceWidth = dw; |
| mLastSurfaceHeight = dh; |
| } |
| if (!redrawNeeded && xPixels == mLastXTranslation && yPixels == mLastYTranslation) { |
| if (DEBUG) { |
| Log.d(TAG, "Suppressed drawFrame since the image has not " |
| + "actually moved an integral number of pixels."); |
| } |
| return; |
| } |
| mLastXTranslation = xPixels; |
| mLastYTranslation = yPixels; |
| |
| if (DEBUG) { |
| Log.d(TAG, "Redrawing wallpaper"); |
| } |
| |
| if (mIsHwAccelerated) { |
| if (!drawWallpaperWithOpenGL(sh, availw, availh, xPixels, yPixels)) { |
| drawWallpaperWithCanvas(sh, availw, availh, xPixels, yPixels); |
| } |
| } else { |
| drawWallpaperWithCanvas(sh, availw, availh, xPixels, yPixels); |
| } |
| } finally { |
| if (FIXED_SIZED_SURFACE && !mIsHwAccelerated) { |
| // If the surface is fixed-size, we should only need to |
| // draw it once and then we'll let the window manager |
| // position it appropriately. As such, we no longer needed |
| // the loaded bitmap. Yay! |
| // hw-accelerated renderer retains bitmap for faster rotation |
| mBackground = null; |
| mWallpaperManager.forgetLoadedWallpaper(); |
| } |
| } |
| } |
| |
| private void updateWallpaperLocked() { |
| Throwable exception = null; |
| try { |
| mBackground = null; |
| mBackgroundWidth = -1; |
| mBackgroundHeight = -1; |
| mBackground = mWallpaperManager.getBitmap(); |
| mBackgroundWidth = mBackground.getWidth(); |
| mBackgroundHeight = mBackground.getHeight(); |
| } catch (RuntimeException e) { |
| exception = e; |
| } catch (OutOfMemoryError e) { |
| exception = e; |
| } |
| |
| if (exception != null) { |
| mBackground = null; |
| mBackgroundWidth = -1; |
| mBackgroundHeight = -1; |
| // Note that if we do fail at this, and the default wallpaper can't |
| // be loaded, we will go into a cycle. Don't do a build where the |
| // default wallpaper can't be loaded. |
| Log.w(TAG, "Unable to load wallpaper!", exception); |
| try { |
| mWallpaperManager.clear(); |
| } catch (IOException ex) { |
| // now we're really screwed. |
| Log.w(TAG, "Unable reset to default wallpaper!", ex); |
| } |
| } |
| } |
| |
| @Override |
| protected void dump(String prefix, FileDescriptor fd, PrintWriter out, String[] args) { |
| super.dump(prefix, fd, out, args); |
| |
| out.print(prefix); out.println("ImageWallpaper.DrawableEngine:"); |
| out.print(prefix); out.print(" mBackground="); out.print(mBackground); |
| out.print(" mBackgroundWidth="); out.print(mBackgroundWidth); |
| out.print(" mBackgroundHeight="); out.println(mBackgroundHeight); |
| |
| out.print(prefix); out.print(" mLastRotation="); out.print(mLastRotation); |
| out.print(" mLastSurfaceWidth="); out.print(mLastSurfaceWidth); |
| out.print(" mLastSurfaceHeight="); out.println(mLastSurfaceHeight); |
| |
| out.print(prefix); out.print(" mXOffset="); out.print(mXOffset); |
| out.print(" mYOffset="); out.println(mYOffset); |
| |
| out.print(prefix); out.print(" mVisible="); out.print(mVisible); |
| out.print(" mOffsetsChanged="); out.println(mOffsetsChanged); |
| |
| out.print(prefix); out.print(" mLastXTranslation="); out.print(mLastXTranslation); |
| out.print(" mLastYTranslation="); out.print(mLastYTranslation); |
| out.print(" mScale="); out.println(mScale); |
| |
| out.print(prefix); out.print(" mLastRequestedWidth="); out.print(mLastRequestedWidth); |
| out.print(" mLastRequestedHeight="); out.println(mLastRequestedHeight); |
| |
| out.print(prefix); out.println(" DisplayInfo at last updateSurfaceSize:"); |
| out.print(prefix); |
| out.print(" rotation="); out.print(mRotationAtLastSurfaceSizeUpdate); |
| out.print(" width="); out.print(mDisplayWidthAtLastSurfaceSizeUpdate); |
| out.print(" height="); out.println(mDisplayHeightAtLastSurfaceSizeUpdate); |
| } |
| |
| private void drawWallpaperWithCanvas(SurfaceHolder sh, int w, int h, int left, int top) { |
| Canvas c = sh.lockCanvas(); |
| if (c != null) { |
| try { |
| if (DEBUG) { |
| Log.d(TAG, "Redrawing: left=" + left + ", top=" + top); |
| } |
| |
| final float right = left + mBackground.getWidth() * mScale; |
| final float bottom = top + mBackground.getHeight() * mScale; |
| if (w < 0 || h < 0) { |
| c.save(Canvas.CLIP_SAVE_FLAG); |
| c.clipRect(left, top, right, bottom, |
| Op.DIFFERENCE); |
| c.drawColor(0xff000000); |
| c.restore(); |
| } |
| if (mBackground != null) { |
| RectF dest = new RectF(left, top, right, bottom); |
| // add a filter bitmap? |
| c.drawBitmap(mBackground, null, dest, null); |
| } |
| } finally { |
| sh.unlockCanvasAndPost(c); |
| } |
| } |
| } |
| |
| private boolean drawWallpaperWithOpenGL(SurfaceHolder sh, int w, int h, int left, int top) { |
| if (!initGL(sh)) return false; |
| |
| final float right = left + mBackground.getWidth() * mScale; |
| final float bottom = top + mBackground.getHeight() * mScale; |
| |
| final Rect frame = sh.getSurfaceFrame(); |
| final Matrix4f ortho = new Matrix4f(); |
| ortho.loadOrtho(0.0f, frame.width(), frame.height(), 0.0f, -1.0f, 1.0f); |
| |
| final FloatBuffer triangleVertices = createMesh(left, top, right, bottom); |
| |
| final int texture = loadTexture(mBackground); |
| final int program = buildProgram(sSimpleVS, sSimpleFS); |
| |
| final int attribPosition = glGetAttribLocation(program, "position"); |
| final int attribTexCoords = glGetAttribLocation(program, "texCoords"); |
| final int uniformTexture = glGetUniformLocation(program, "texture"); |
| final int uniformProjection = glGetUniformLocation(program, "projection"); |
| |
| checkGlError(); |
| |
| glViewport(0, 0, frame.width(), frame.height()); |
| glBindTexture(GL_TEXTURE_2D, texture); |
| |
| glUseProgram(program); |
| glEnableVertexAttribArray(attribPosition); |
| glEnableVertexAttribArray(attribTexCoords); |
| glUniform1i(uniformTexture, 0); |
| glUniformMatrix4fv(uniformProjection, 1, false, ortho.getArray(), 0); |
| |
| checkGlError(); |
| |
| if (w > 0 || h > 0) { |
| glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
| glClear(GL_COLOR_BUFFER_BIT); |
| } |
| |
| // drawQuad |
| triangleVertices.position(TRIANGLE_VERTICES_DATA_POS_OFFSET); |
| glVertexAttribPointer(attribPosition, 3, GL_FLOAT, false, |
| TRIANGLE_VERTICES_DATA_STRIDE_BYTES, triangleVertices); |
| |
| triangleVertices.position(TRIANGLE_VERTICES_DATA_UV_OFFSET); |
| glVertexAttribPointer(attribTexCoords, 3, GL_FLOAT, false, |
| TRIANGLE_VERTICES_DATA_STRIDE_BYTES, triangleVertices); |
| |
| glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); |
| |
| boolean status = mEgl.eglSwapBuffers(mEglDisplay, mEglSurface); |
| checkEglError(); |
| |
| finishGL(texture, program); |
| |
| return status; |
| } |
| |
| private FloatBuffer createMesh(int left, int top, float right, float bottom) { |
| final float[] verticesData = { |
| // X, Y, Z, U, V |
| left, bottom, 0.0f, 0.0f, 1.0f, |
| right, bottom, 0.0f, 1.0f, 1.0f, |
| left, top, 0.0f, 0.0f, 0.0f, |
| right, top, 0.0f, 1.0f, 0.0f, |
| }; |
| |
| final int bytes = verticesData.length * FLOAT_SIZE_BYTES; |
| final FloatBuffer triangleVertices = ByteBuffer.allocateDirect(bytes).order( |
| ByteOrder.nativeOrder()).asFloatBuffer(); |
| triangleVertices.put(verticesData).position(0); |
| return triangleVertices; |
| } |
| |
| private int loadTexture(Bitmap bitmap) { |
| int[] textures = new int[1]; |
| |
| glActiveTexture(GL_TEXTURE0); |
| glGenTextures(1, textures, 0); |
| checkGlError(); |
| |
| int texture = textures[0]; |
| glBindTexture(GL_TEXTURE_2D, texture); |
| checkGlError(); |
| |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| |
| GLUtils.texImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bitmap, GL_UNSIGNED_BYTE, 0); |
| checkGlError(); |
| |
| return texture; |
| } |
| |
| private int buildProgram(String vertex, String fragment) { |
| int vertexShader = buildShader(vertex, GL_VERTEX_SHADER); |
| if (vertexShader == 0) return 0; |
| |
| int fragmentShader = buildShader(fragment, GL_FRAGMENT_SHADER); |
| if (fragmentShader == 0) return 0; |
| |
| int program = glCreateProgram(); |
| glAttachShader(program, vertexShader); |
| glAttachShader(program, fragmentShader); |
| glLinkProgram(program); |
| checkGlError(); |
| |
| glDeleteShader(vertexShader); |
| glDeleteShader(fragmentShader); |
| |
| int[] status = new int[1]; |
| glGetProgramiv(program, GL_LINK_STATUS, status, 0); |
| if (status[0] != GL_TRUE) { |
| String error = glGetProgramInfoLog(program); |
| Log.d(GL_LOG_TAG, "Error while linking program:\n" + error); |
| glDeleteProgram(program); |
| return 0; |
| } |
| |
| return program; |
| } |
| |
| private int buildShader(String source, int type) { |
| int shader = glCreateShader(type); |
| |
| glShaderSource(shader, source); |
| checkGlError(); |
| |
| glCompileShader(shader); |
| checkGlError(); |
| |
| int[] status = new int[1]; |
| glGetShaderiv(shader, GL_COMPILE_STATUS, status, 0); |
| if (status[0] != GL_TRUE) { |
| String error = glGetShaderInfoLog(shader); |
| Log.d(GL_LOG_TAG, "Error while compiling shader:\n" + error); |
| glDeleteShader(shader); |
| return 0; |
| } |
| |
| return shader; |
| } |
| |
| private void checkEglError() { |
| int error = mEgl.eglGetError(); |
| if (error != EGL_SUCCESS) { |
| Log.w(GL_LOG_TAG, "EGL error = " + GLUtils.getEGLErrorString(error)); |
| } |
| } |
| |
| private void checkGlError() { |
| int error = glGetError(); |
| if (error != GL_NO_ERROR) { |
| Log.w(GL_LOG_TAG, "GL error = 0x" + Integer.toHexString(error), new Throwable()); |
| } |
| } |
| |
| private void finishGL(int texture, int program) { |
| int[] textures = new int[1]; |
| textures[0] = texture; |
| glDeleteTextures(1, textures, 0); |
| glDeleteProgram(program); |
| mEgl.eglMakeCurrent(mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
| mEgl.eglDestroySurface(mEglDisplay, mEglSurface); |
| mEgl.eglDestroyContext(mEglDisplay, mEglContext); |
| mEgl.eglTerminate(mEglDisplay); |
| } |
| |
| private boolean initGL(SurfaceHolder surfaceHolder) { |
| mEgl = (EGL10) EGLContext.getEGL(); |
| |
| mEglDisplay = mEgl.eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| if (mEglDisplay == EGL_NO_DISPLAY) { |
| throw new RuntimeException("eglGetDisplay failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| int[] version = new int[2]; |
| if (!mEgl.eglInitialize(mEglDisplay, version)) { |
| throw new RuntimeException("eglInitialize failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| mEglConfig = chooseEglConfig(); |
| if (mEglConfig == null) { |
| throw new RuntimeException("eglConfig not initialized"); |
| } |
| |
| mEglContext = createContext(mEgl, mEglDisplay, mEglConfig); |
| if (mEglContext == EGL_NO_CONTEXT) { |
| throw new RuntimeException("createContext failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| int attribs[] = { |
| EGL_WIDTH, 1, |
| EGL_HEIGHT, 1, |
| EGL_NONE |
| }; |
| EGLSurface tmpSurface = mEgl.eglCreatePbufferSurface(mEglDisplay, mEglConfig, attribs); |
| mEgl.eglMakeCurrent(mEglDisplay, tmpSurface, tmpSurface, mEglContext); |
| |
| int[] maxSize = new int[1]; |
| Rect frame = surfaceHolder.getSurfaceFrame(); |
| glGetIntegerv(GL_MAX_TEXTURE_SIZE, maxSize, 0); |
| |
| mEgl.eglMakeCurrent(mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); |
| mEgl.eglDestroySurface(mEglDisplay, tmpSurface); |
| |
| if(frame.width() > maxSize[0] || frame.height() > maxSize[0]) { |
| mEgl.eglDestroyContext(mEglDisplay, mEglContext); |
| mEgl.eglTerminate(mEglDisplay); |
| Log.e(GL_LOG_TAG, "requested texture size " + |
| frame.width() + "x" + frame.height() + " exceeds the support maximum of " + |
| maxSize[0] + "x" + maxSize[0]); |
| return false; |
| } |
| |
| mEglSurface = mEgl.eglCreateWindowSurface(mEglDisplay, mEglConfig, surfaceHolder, null); |
| if (mEglSurface == null || mEglSurface == EGL_NO_SURFACE) { |
| int error = mEgl.eglGetError(); |
| if (error == EGL_BAD_NATIVE_WINDOW || error == EGL_BAD_ALLOC) { |
| Log.e(GL_LOG_TAG, "createWindowSurface returned " + |
| GLUtils.getEGLErrorString(error) + "."); |
| return false; |
| } |
| throw new RuntimeException("createWindowSurface failed " + |
| GLUtils.getEGLErrorString(error)); |
| } |
| |
| if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) { |
| throw new RuntimeException("eglMakeCurrent failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } |
| |
| return true; |
| } |
| |
| |
| EGLContext createContext(EGL10 egl, EGLDisplay eglDisplay, EGLConfig eglConfig) { |
| int[] attrib_list = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE }; |
| return egl.eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, attrib_list); |
| } |
| |
| private EGLConfig chooseEglConfig() { |
| int[] configsCount = new int[1]; |
| EGLConfig[] configs = new EGLConfig[1]; |
| int[] configSpec = getConfig(); |
| if (!mEgl.eglChooseConfig(mEglDisplay, configSpec, configs, 1, configsCount)) { |
| throw new IllegalArgumentException("eglChooseConfig failed " + |
| GLUtils.getEGLErrorString(mEgl.eglGetError())); |
| } else if (configsCount[0] > 0) { |
| return configs[0]; |
| } |
| return null; |
| } |
| |
| private int[] getConfig() { |
| return new int[] { |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL_RED_SIZE, 8, |
| EGL_GREEN_SIZE, 8, |
| EGL_BLUE_SIZE, 8, |
| EGL_ALPHA_SIZE, 0, |
| EGL_DEPTH_SIZE, 0, |
| EGL_STENCIL_SIZE, 0, |
| EGL_CONFIG_CAVEAT, EGL_NONE, |
| EGL_NONE |
| }; |
| } |
| } |
| } |
