BootAnimation.cpp revision 627e7b50be41e4fdee758a1bfad3a55de56b4e27
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "BootAnimation" 18 19#include <stdint.h> 20#include <sys/types.h> 21#include <math.h> 22#include <fcntl.h> 23#include <utils/misc.h> 24 25#include <utils/IPCThreadState.h> 26#include <utils/threads.h> 27#include <utils/Atomic.h> 28#include <utils/Errors.h> 29#include <utils/Log.h> 30#include <utils/AssetManager.h> 31 32#include <ui/PixelFormat.h> 33#include <ui/Rect.h> 34#include <ui/Region.h> 35#include <ui/DisplayInfo.h> 36#include <ui/ISurfaceComposer.h> 37#include <ui/ISurfaceFlingerClient.h> 38#include <ui/EGLNativeWindowSurface.h> 39 40#include <core/SkBitmap.h> 41#include <images/SkImageDecoder.h> 42 43#include <GLES/gl.h> 44#include <GLES/glext.h> 45#include <EGL/eglext.h> 46 47#include "BootAnimation.h" 48 49namespace android { 50 51// --------------------------------------------------------------------------- 52 53BootAnimation::BootAnimation() : Thread(false) 54{ 55 mSession = new SurfaceComposerClient(); 56} 57 58BootAnimation::~BootAnimation() { 59} 60 61void BootAnimation::onFirstRef() { 62 run("BootAnimation", PRIORITY_DISPLAY); 63} 64 65const sp<SurfaceComposerClient>& BootAnimation::session() const { 66 return mSession; 67} 68 69status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets, 70 const char* name) { 71 Asset* asset = assets.open(name, Asset::ACCESS_BUFFER); 72 if (!asset) 73 return NO_INIT; 74 SkBitmap bitmap; 75 SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(), 76 &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode); 77 asset->close(); 78 delete asset; 79 80 // ensure we can call getPixels(). No need to call unlock, since the 81 // bitmap will go out of scope when we return from this method. 82 bitmap.lockPixels(); 83 84 const int w = bitmap.width(); 85 const int h = bitmap.height(); 86 const void* p = bitmap.getPixels(); 87 88 GLint crop[4] = { 0, h, w, -h }; 89 texture->w = w; 90 texture->h = h; 91 92 glGenTextures(1, &texture->name); 93 glBindTexture(GL_TEXTURE_2D, texture->name); 94 95 switch (bitmap.getConfig()) { 96 case SkBitmap::kA8_Config: 97 glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA, 98 GL_UNSIGNED_BYTE, p); 99 break; 100 case SkBitmap::kARGB_4444_Config: 101 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, 102 GL_UNSIGNED_SHORT_4_4_4_4, p); 103 break; 104 case SkBitmap::kARGB_8888_Config: 105 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, 106 GL_UNSIGNED_BYTE, p); 107 break; 108 case SkBitmap::kRGB_565_Config: 109 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, 110 GL_UNSIGNED_SHORT_5_6_5, p); 111 break; 112 default: 113 break; 114 } 115 116 glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop); 117 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 118 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 119 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 120 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 121 return NO_ERROR; 122} 123 124status_t BootAnimation::readyToRun() { 125 mAssets.addDefaultAssets(); 126 127 DisplayInfo dinfo; 128 status_t status = session()->getDisplayInfo(0, &dinfo); 129 if (status) 130 return -1; 131 132 // create the native surface 133 sp<Surface> s = session()->createSurface(getpid(), 0, dinfo.w, dinfo.h, 134 PIXEL_FORMAT_RGB_565, ISurfaceComposer::eGPU); 135 session()->openTransaction(); 136 s->setLayer(0x40000000); 137 session()->closeTransaction(); 138 139 // initialize opengl and egl 140 const EGLint attribs[] = { EGL_RED_SIZE, 5, EGL_GREEN_SIZE, 6, 141 EGL_BLUE_SIZE, 5, EGL_DEPTH_SIZE, 0, EGL_NONE }; 142 EGLint w, h, dummy; 143 EGLint numConfigs; 144 EGLConfig config; 145 EGLSurface surface; 146 EGLContext context; 147 148 EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); 149 150 eglInitialize(display, 0, 0); 151 eglChooseConfig(display, attribs, &config, 1, &numConfigs); 152 153 mNativeWindowSurface = new EGLNativeWindowSurface(s); 154 surface = eglCreateWindowSurface(display, config, 155 mNativeWindowSurface.get(), NULL); 156 157 context = eglCreateContext(display, config, NULL, NULL); 158 eglQuerySurface(display, surface, EGL_WIDTH, &w); 159 eglQuerySurface(display, surface, EGL_HEIGHT, &h); 160 eglMakeCurrent(display, surface, surface, context); 161 mDisplay = display; 162 mContext = context; 163 mSurface = surface; 164 mWidth = w; 165 mHeight = h; 166 mFlingerSurface = s; 167 168 // initialize GL 169 glShadeModel(GL_FLAT); 170 glEnable(GL_TEXTURE_2D); 171 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 172 173 return NO_ERROR; 174} 175 176bool BootAnimation::threadLoop() { 177 bool r = android(); 178 eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); 179 eglDestroyContext(mDisplay, mContext); 180 eglDestroySurface(mDisplay, mSurface); 181 mNativeWindowSurface.clear(); 182 mFlingerSurface.clear(); 183 eglTerminate(mDisplay); 184 IPCThreadState::self()->stopProcess(); 185 return r; 186} 187 188bool BootAnimation::android() { 189 initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png"); 190 initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png"); 191 192 // clear screen 193 glDisable(GL_DITHER); 194 glDisable(GL_SCISSOR_TEST); 195 glClear(GL_COLOR_BUFFER_BIT); 196 eglSwapBuffers(mDisplay, mSurface); 197 198 const GLint xc = (mWidth - mAndroid[0].w) / 2; 199 const GLint yc = (mHeight - mAndroid[0].h) / 2; 200 const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h); 201 202 // draw and update only what we need 203 mNativeWindowSurface->setSwapRectangle(updateRect.left, 204 updateRect.top, updateRect.width(), updateRect.height()); 205 206 glEnable(GL_SCISSOR_TEST); 207 glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(), 208 updateRect.height()); 209 210 // Blend state 211 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 212 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 213 214 const nsecs_t startTime = systemTime(); 215 do { 216 nsecs_t now = systemTime(); 217 double time = now - startTime; 218 float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w; 219 GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w; 220 GLint x = xc - offset; 221 222 glDisable(GL_BLEND); 223 glBindTexture(GL_TEXTURE_2D, mAndroid[1].name); 224 glDrawTexiOES(x, yc, 0, mAndroid[1].w, mAndroid[1].h); 225 glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h); 226 227 glEnable(GL_BLEND); 228 glBindTexture(GL_TEXTURE_2D, mAndroid[0].name); 229 glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h); 230 231 EGLBoolean res = eglSwapBuffers(mDisplay, mSurface); 232 if (res == EGL_FALSE) 233 break; 234 235 // 12fps: don't animate too fast to preserve CPU 236 const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now); 237 if (sleepTime > 0) 238 usleep(sleepTime); 239 } while (!exitPending()); 240 241 glDeleteTextures(1, &mAndroid[0].name); 242 glDeleteTextures(1, &mAndroid[1].name); 243 return false; 244} 245 246// --------------------------------------------------------------------------- 247 248} 249; // namespace android 250