| /* |
| * Copyright (C) 2011 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.camera.panorama; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.content.pm.ActivityInfo; |
| import android.graphics.PixelFormat; |
| import android.opengl.GLSurfaceView; |
| import android.os.ConditionVariable; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| |
| import javax.microedition.khronos.egl.EGL10; |
| import javax.microedition.khronos.egl.EGLConfig; |
| import javax.microedition.khronos.egl.EGLContext; |
| import javax.microedition.khronos.egl.EGLDisplay; |
| |
| public class MosaicRendererSurfaceView extends GLSurfaceView { |
| private static final String TAG = "MosaicRendererSurfaceView"; |
| private static final boolean DEBUG = false; |
| private MosaicRendererSurfaceViewRenderer mRenderer; |
| private ConditionVariable mPreviewFrameReadyForProcessing; |
| private boolean mIsLandscapeOrientation = true; |
| |
| public MosaicRendererSurfaceView(Context context) { |
| super(context); |
| initialize(context, false, 0, 0); |
| } |
| |
| public MosaicRendererSurfaceView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| initialize(context, false, 0, 0); |
| } |
| |
| public MosaicRendererSurfaceView(Context context, boolean translucent, |
| int depth, int stencil) { |
| super(context); |
| initialize(context, translucent, depth, stencil); |
| } |
| |
| private void initialize(Context context, boolean translucent, int depth, int stencil) { |
| getDisplayOrientation(context); |
| init(translucent, depth, stencil); |
| setZOrderMediaOverlay(true); |
| } |
| |
| private void getDisplayOrientation(Context context) { |
| Activity activity = (PanoramaActivity) context; |
| mIsLandscapeOrientation = (activity.getRequestedOrientation() |
| == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE ); |
| } |
| |
| private void init(boolean translucent, int depth, int stencil) { |
| |
| /* By default, GLSurfaceView() creates a RGB_565 opaque surface. |
| * If we want a translucent one, we should change the surface's |
| * format here, using PixelFormat.TRANSLUCENT for GL Surfaces |
| * is interpreted as any 32-bit surface with alpha by SurfaceFlinger. |
| */ |
| if (translucent) { |
| this.getHolder().setFormat(PixelFormat.TRANSLUCENT); |
| } |
| |
| /* Setup the context factory for 2.0 rendering. |
| * See ContextFactory class definition below |
| */ |
| setEGLContextFactory(new ContextFactory()); |
| |
| /* We need to choose an EGLConfig that matches the format of |
| * our surface exactly. This is going to be done in our |
| * custom config chooser. See ConfigChooser class definition |
| * below. |
| */ |
| setEGLConfigChooser( |
| translucent ? new ConfigChooser(8, 8, 8, 8, depth, stencil) : |
| new ConfigChooser(5, 6, 5, 0, depth, stencil)); |
| |
| /* Set the renderer responsible for frame rendering */ |
| mRenderer = new MosaicRendererSurfaceViewRenderer(mIsLandscapeOrientation); |
| setRenderer(mRenderer); |
| setRenderMode(RENDERMODE_WHEN_DIRTY); |
| mPreviewFrameReadyForProcessing = new ConditionVariable(); |
| } |
| |
| private static class ContextFactory implements GLSurfaceView.EGLContextFactory { |
| private static int EGL_CONTEXT_CLIENT_VERSION = 0x3098; |
| public EGLContext createContext(EGL10 egl, EGLDisplay display, EGLConfig eglConfig) { |
| Log.w(TAG, "creating OpenGL ES 2.0 context"); |
| checkEglError("Before eglCreateContext", egl); |
| int[] attribList = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE }; |
| EGLContext context = egl.eglCreateContext( |
| display, eglConfig, EGL10.EGL_NO_CONTEXT, attribList); |
| checkEglError("After eglCreateContext", egl); |
| return context; |
| } |
| |
| public void destroyContext(EGL10 egl, EGLDisplay display, EGLContext context) { |
| egl.eglDestroyContext(display, context); |
| } |
| } |
| |
| private static void checkEglError(String prompt, EGL10 egl) { |
| int error; |
| while ((error = egl.eglGetError()) != EGL10.EGL_SUCCESS) { |
| Log.e(TAG, String.format("%s: EGL error: 0x%x", prompt, error)); |
| } |
| } |
| |
| private static class ConfigChooser implements GLSurfaceView.EGLConfigChooser { |
| |
| public ConfigChooser(int r, int g, int b, int a, int depth, int stencil) { |
| mRedSize = r; |
| mGreenSize = g; |
| mBlueSize = b; |
| mAlphaSize = a; |
| mDepthSize = depth; |
| mStencilSize = stencil; |
| } |
| |
| /* This EGL config specification is used to specify 2.0 rendering. |
| * We use a minimum size of 4 bits for red/green/blue, but will |
| * perform actual matching in chooseConfig() below. |
| */ |
| private static final int EGL_OPENGL_ES2_BIT = 4; |
| private static final int[] CONFIG_ATTRIBUTES = |
| { |
| EGL10.EGL_RED_SIZE, 4, |
| EGL10.EGL_GREEN_SIZE, 4, |
| EGL10.EGL_BLUE_SIZE, 4, |
| EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| EGL10.EGL_NONE |
| }; |
| |
| public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display) { |
| |
| /* Get the number of minimally matching EGL configurations |
| */ |
| int[] numConfig = new int[1]; |
| egl.eglChooseConfig(display, CONFIG_ATTRIBUTES, null, 0, numConfig); |
| |
| int numConfigs = numConfig[0]; |
| |
| if (numConfigs <= 0) { |
| throw new IllegalArgumentException("No configs match configSpec"); |
| } |
| |
| /* Allocate then read the array of minimally matching EGL configs |
| */ |
| EGLConfig[] configs = new EGLConfig[numConfigs]; |
| egl.eglChooseConfig(display, CONFIG_ATTRIBUTES, configs, numConfigs, numConfig); |
| |
| if (DEBUG) { |
| printConfigs(egl, display, configs); |
| } |
| /* Now return the "best" one |
| */ |
| return chooseConfig(egl, display, configs); |
| } |
| |
| public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display, |
| EGLConfig[] configs) { |
| for (EGLConfig config : configs) { |
| int d = findConfigAttrib(egl, display, config, |
| EGL10.EGL_DEPTH_SIZE, 0); |
| int s = findConfigAttrib(egl, display, config, |
| EGL10.EGL_STENCIL_SIZE, 0); |
| |
| // We need at least mDepthSize and mStencilSize bits |
| if (d < mDepthSize || s < mStencilSize) |
| continue; |
| |
| // We want an *exact* match for red/green/blue/alpha |
| int r = findConfigAttrib(egl, display, config, |
| EGL10.EGL_RED_SIZE, 0); |
| int g = findConfigAttrib(egl, display, config, |
| EGL10.EGL_GREEN_SIZE, 0); |
| int b = findConfigAttrib(egl, display, config, |
| EGL10.EGL_BLUE_SIZE, 0); |
| int a = findConfigAttrib(egl, display, config, |
| EGL10.EGL_ALPHA_SIZE, 0); |
| |
| if (r == mRedSize && g == mGreenSize && b == mBlueSize && a == mAlphaSize) |
| return config; |
| } |
| return null; |
| } |
| |
| private int findConfigAttrib(EGL10 egl, EGLDisplay display, |
| EGLConfig config, int attribute, int defaultValue) { |
| |
| if (egl.eglGetConfigAttrib(display, config, attribute, mValue)) { |
| return mValue[0]; |
| } |
| return defaultValue; |
| } |
| |
| private void printConfigs(EGL10 egl, EGLDisplay display, |
| EGLConfig[] configs) { |
| int numConfigs = configs.length; |
| Log.w(TAG, String.format("%d configurations", numConfigs)); |
| for (int i = 0; i < numConfigs; i++) { |
| Log.w(TAG, String.format("Configuration %d:\n", i)); |
| printConfig(egl, display, configs[i]); |
| } |
| } |
| |
| private void printConfig(EGL10 egl, EGLDisplay display, |
| EGLConfig config) { |
| int[] attributes = { |
| EGL10.EGL_BUFFER_SIZE, |
| EGL10.EGL_ALPHA_SIZE, |
| EGL10.EGL_BLUE_SIZE, |
| EGL10.EGL_GREEN_SIZE, |
| EGL10.EGL_RED_SIZE, |
| EGL10.EGL_DEPTH_SIZE, |
| EGL10.EGL_STENCIL_SIZE, |
| EGL10.EGL_CONFIG_CAVEAT, |
| EGL10.EGL_CONFIG_ID, |
| EGL10.EGL_LEVEL, |
| EGL10.EGL_MAX_PBUFFER_HEIGHT, |
| EGL10.EGL_MAX_PBUFFER_PIXELS, |
| EGL10.EGL_MAX_PBUFFER_WIDTH, |
| EGL10.EGL_NATIVE_RENDERABLE, |
| EGL10.EGL_NATIVE_VISUAL_ID, |
| EGL10.EGL_NATIVE_VISUAL_TYPE, |
| 0x3030, // EGL10.EGL_PRESERVED_RESOURCES, |
| EGL10.EGL_SAMPLES, |
| EGL10.EGL_SAMPLE_BUFFERS, |
| EGL10.EGL_SURFACE_TYPE, |
| EGL10.EGL_TRANSPARENT_TYPE, |
| EGL10.EGL_TRANSPARENT_RED_VALUE, |
| EGL10.EGL_TRANSPARENT_GREEN_VALUE, |
| EGL10.EGL_TRANSPARENT_BLUE_VALUE, |
| 0x3039, // EGL10.EGL_BIND_TO_TEXTURE_RGB, |
| 0x303A, // EGL10.EGL_BIND_TO_TEXTURE_RGBA, |
| 0x303B, // EGL10.EGL_MIN_SWAP_INTERVAL, |
| 0x303C, // EGL10.EGL_MAX_SWAP_INTERVAL, |
| EGL10.EGL_LUMINANCE_SIZE, |
| EGL10.EGL_ALPHA_MASK_SIZE, |
| EGL10.EGL_COLOR_BUFFER_TYPE, |
| EGL10.EGL_RENDERABLE_TYPE, |
| 0x3042 // EGL10.EGL_CONFORMANT |
| }; |
| String[] names = { |
| "EGL_BUFFER_SIZE", |
| "EGL_ALPHA_SIZE", |
| "EGL_BLUE_SIZE", |
| "EGL_GREEN_SIZE", |
| "EGL_RED_SIZE", |
| "EGL_DEPTH_SIZE", |
| "EGL_STENCIL_SIZE", |
| "EGL_CONFIG_CAVEAT", |
| "EGL_CONFIG_ID", |
| "EGL_LEVEL", |
| "EGL_MAX_PBUFFER_HEIGHT", |
| "EGL_MAX_PBUFFER_PIXELS", |
| "EGL_MAX_PBUFFER_WIDTH", |
| "EGL_NATIVE_RENDERABLE", |
| "EGL_NATIVE_VISUAL_ID", |
| "EGL_NATIVE_VISUAL_TYPE", |
| "EGL_PRESERVED_RESOURCES", |
| "EGL_SAMPLES", |
| "EGL_SAMPLE_BUFFERS", |
| "EGL_SURFACE_TYPE", |
| "EGL_TRANSPARENT_TYPE", |
| "EGL_TRANSPARENT_RED_VALUE", |
| "EGL_TRANSPARENT_GREEN_VALUE", |
| "EGL_TRANSPARENT_BLUE_VALUE", |
| "EGL_BIND_TO_TEXTURE_RGB", |
| "EGL_BIND_TO_TEXTURE_RGBA", |
| "EGL_MIN_SWAP_INTERVAL", |
| "EGL_MAX_SWAP_INTERVAL", |
| "EGL_LUMINANCE_SIZE", |
| "EGL_ALPHA_MASK_SIZE", |
| "EGL_COLOR_BUFFER_TYPE", |
| "EGL_RENDERABLE_TYPE", |
| "EGL_CONFORMANT" |
| }; |
| int[] value = new int[1]; |
| for (int i = 0; i < attributes.length; i++) { |
| int attribute = attributes[i]; |
| String name = names[i]; |
| if (egl.eglGetConfigAttrib(display, config, attribute, value)) { |
| Log.w(TAG, String.format(" %s: %d\n", name, value[0])); |
| } else { |
| // Log.w(TAG, String.format(" %s: failed\n", name)); |
| while (egl.eglGetError() != EGL10.EGL_SUCCESS); |
| } |
| } |
| } |
| |
| // Subclasses can adjust these values: |
| protected int mRedSize; |
| protected int mGreenSize; |
| protected int mBlueSize; |
| protected int mAlphaSize; |
| protected int mDepthSize; |
| protected int mStencilSize; |
| private int[] mValue = new int[1]; |
| } |
| |
| public void lockPreviewReadyFlag() { |
| mPreviewFrameReadyForProcessing.close(); |
| } |
| |
| private void unlockPreviewReadyFlag() { |
| mPreviewFrameReadyForProcessing.open(); |
| } |
| |
| public void waitUntilPreviewReady() { |
| mPreviewFrameReadyForProcessing.block(); |
| } |
| |
| public void setReady() { |
| queueEvent(new Runnable() { |
| |
| @Override |
| public void run() { |
| mRenderer.setReady(); |
| } |
| }); |
| } |
| |
| public void preprocess(final float[] transformMatrix) { |
| queueEvent(new Runnable() { |
| |
| @Override |
| public void run() { |
| mRenderer.preprocess(transformMatrix); |
| } |
| }); |
| } |
| |
| public void transferGPUtoCPU() { |
| queueEvent(new Runnable() { |
| |
| @Override |
| public void run() { |
| mRenderer.transferGPUtoCPU(); |
| unlockPreviewReadyFlag(); |
| } |
| }); |
| } |
| |
| public void setWarping(final boolean flag) { |
| queueEvent(new Runnable() { |
| |
| @Override |
| public void run() { |
| mRenderer.setWarping(flag); |
| } |
| }); |
| } |
| |
| public MosaicRendererSurfaceViewRenderer getRenderer() { |
| return mRenderer; |
| } |
| |
| } |