cmds/bootanimation/BootAnimation.cpp - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2007 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.
  */

 #define LOG_TAG "BootAnimation"

 #include <stdint.h>
 #include <sys/types.h>
 #include <math.h>
 #include <fcntl.h>
 #include <utils/misc.h>
 #include <signal.h>

 #include <binder/IPCThreadState.h>
 #include <utils/threads.h>
 #include <utils/Atomic.h>
 #include <utils/Errors.h>
 #include <utils/Log.h>
 #include <utils/AssetManager.h>

 #include <ui/PixelFormat.h>
 #include <ui/Rect.h>
 #include <ui/Region.h>
 #include <ui/DisplayInfo.h>
 #include <ui/ISurfaceComposer.h>
 #include <ui/ISurfaceFlingerClient.h>
 #include <ui/FramebufferNativeWindow.h>
 #include <ui/EGLUtils.h>

 #include <core/SkBitmap.h>
 #include <images/SkImageDecoder.h>

 #include <GLES/gl.h>
 #include <GLES/glext.h>
 #include <EGL/eglext.h>

 #include "BootAnimation.h"

 namespace android {

 // ---------------------------------------------------------------------------

 BootAnimation::BootAnimation() : Thread(false)
 {
     mSession = new SurfaceComposerClient();
 }

 BootAnimation::~BootAnimation() {
 }

 void BootAnimation::onFirstRef() {
     status_t err = mSession->linkToComposerDeath(this);
     LOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
     if (err == NO_ERROR) {
         run("BootAnimation", PRIORITY_DISPLAY);
     }
 }

 sp<SurfaceComposerClient> BootAnimation::session() const {
     return mSession;
 }


 void BootAnimation::binderDied(const wp<IBinder>& who)
 {
     // woah, surfaceflinger died!
     LOGD("SurfaceFlinger died, exiting...");

     // calling requestExit() is not enough here because the Surface code
     // might be blocked on a condition variable that will never be updated.
     kill( getpid(), SIGKILL );
     requestExit();
 }

 status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
         const char* name) {
     Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
     if (!asset)
         return NO_INIT;
     SkBitmap bitmap;
     SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
             &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
     asset->close();
     delete asset;

     // ensure we can call getPixels(). No need to call unlock, since the
     // bitmap will go out of scope when we return from this method.
     bitmap.lockPixels();

     const int w = bitmap.width();
     const int h = bitmap.height();
     const void* p = bitmap.getPixels();

     GLint crop[4] = { 0, h, w, -h };
     texture->w = w;
     texture->h = h;

     glGenTextures(1, &texture->name);
     glBindTexture(GL_TEXTURE_2D, texture->name);

     switch (bitmap.getConfig()) {
         case SkBitmap::kA8_Config:
             glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
                     GL_UNSIGNED_BYTE, p);
             break;
         case SkBitmap::kARGB_4444_Config:
             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                     GL_UNSIGNED_SHORT_4_4_4_4, p);
             break;
         case SkBitmap::kARGB_8888_Config:
             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
                     GL_UNSIGNED_BYTE, p);
             break;
         case SkBitmap::kRGB_565_Config:
             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
                     GL_UNSIGNED_SHORT_5_6_5, p);
             break;
         default:
             break;
     }

     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
     return NO_ERROR;
 }

 status_t BootAnimation::initTexture(void* buffer, size_t len)
 {
     //StopWatch watch("blah");

     SkBitmap bitmap;
     SkImageDecoder::DecodeMemory(buffer, len,
             &bitmap, SkBitmap::kRGB_565_Config,
             SkImageDecoder::kDecodePixels_Mode);

     // ensure we can call getPixels(). No need to call unlock, since the
     // bitmap will go out of scope when we return from this method.
     bitmap.lockPixels();

     const int w = bitmap.width();
     const int h = bitmap.height();
     const void* p = bitmap.getPixels();

     GLint crop[4] = { 0, h, w, -h };
     int tw = 1 << (31 - __builtin_clz(w));
     int th = 1 << (31 - __builtin_clz(h));
     if (tw < w) tw <<= 1;
     if (th < h) th <<= 1;

     switch (bitmap.getConfig()) {
         case SkBitmap::kARGB_8888_Config:
             if (tw != w || th != h) {
                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                         GL_UNSIGNED_BYTE, 0);
                 glTexSubImage2D(GL_TEXTURE_2D, 0,
                         0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
             } else {
                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
                         GL_UNSIGNED_BYTE, p);
             }
             break;

         case SkBitmap::kRGB_565_Config:
             if (tw != w || th != h) {
                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                         GL_UNSIGNED_SHORT_5_6_5, 0);
                 glTexSubImage2D(GL_TEXTURE_2D, 0,
                         0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
             } else {
                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
                         GL_UNSIGNED_SHORT_5_6_5, p);
             }
             break;
         default:
             break;
     }

     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);

     return NO_ERROR;
 }

 status_t BootAnimation::readyToRun() {
     mAssets.addDefaultAssets();

     DisplayInfo dinfo;
     status_t status = session()->getDisplayInfo(0, &dinfo);
     if (status)
         return -1;

     // create the native surface
     sp<SurfaceControl> control = session()->createSurface(
             getpid(), 0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
     session()->openTransaction();
     control->setLayer(0x40000000);
     session()->closeTransaction();

     sp<Surface> s = control->getSurface();

     // initialize opengl and egl
     const EGLint attribs[] = {
             EGL_DEPTH_SIZE, 0,
             EGL_NONE
     };
     EGLint w, h, dummy;
     EGLint numConfigs;
     EGLConfig config;
     EGLSurface surface;
     EGLContext context;

     EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);

     eglInitialize(display, 0, 0);
     EGLUtils::selectConfigForNativeWindow(display, attribs, s.get(), &config);
     surface = eglCreateWindowSurface(display, config, s.get(), NULL);
     context = eglCreateContext(display, config, NULL, NULL);
     eglQuerySurface(display, surface, EGL_WIDTH, &w);
     eglQuerySurface(display, surface, EGL_HEIGHT, &h);

     if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
         return NO_INIT;

     mDisplay = display;
     mContext = context;
     mSurface = surface;
     mWidth = w;
     mHeight = h;
     mFlingerSurfaceControl = control;
     mFlingerSurface = s;

     mAndroidAnimation = false;
     status_t err = mZip.open("/data/local/bootanimation.zip");
     if (err != NO_ERROR) {
         err = mZip.open("/system/media/bootanimation.zip");
         if (err != NO_ERROR) {
             mAndroidAnimation = true;
         }
     }

     return NO_ERROR;
 }

 bool BootAnimation::threadLoop()
 {
     bool r;
     if (mAndroidAnimation) {
         r = android();
     } else {
         r = movie();
     }

     eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
     eglDestroyContext(mDisplay, mContext);
     eglDestroySurface(mDisplay, mSurface);
     mFlingerSurface.clear();
     mFlingerSurfaceControl.clear();
     eglTerminate(mDisplay);
     IPCThreadState::self()->stopProcess();
     return r;
 }

 bool BootAnimation::android()
 {
     initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
     initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");

     // clear screen
     glShadeModel(GL_FLAT);
     glDisable(GL_DITHER);
     glDisable(GL_SCISSOR_TEST);
     glClear(GL_COLOR_BUFFER_BIT);
     eglSwapBuffers(mDisplay, mSurface);

     glEnable(GL_TEXTURE_2D);
     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

     const GLint xc = (mWidth  - mAndroid[0].w) / 2;
     const GLint yc = (mHeight - mAndroid[0].h) / 2;
     const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);

     // draw and update only what we need
     mFlingerSurface->setSwapRectangle(updateRect);

     glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
             updateRect.height());

     // Blend state
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

     const nsecs_t startTime = systemTime();
     do {
         nsecs_t now = systemTime();
         double time = now - startTime;
         float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
         GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
         GLint x = xc - offset;

         glDisable(GL_SCISSOR_TEST);
         glClear(GL_COLOR_BUFFER_BIT);

         glEnable(GL_SCISSOR_TEST);
         glDisable(GL_BLEND);
         glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
         glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
         glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);

         glEnable(GL_BLEND);
         glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
         glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);

         EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
         if (res == EGL_FALSE)
             break;

         // 12fps: don't animate too fast to preserve CPU
         const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
         if (sleepTime > 0)
             usleep(sleepTime);
     } while (!exitPending());

     glDeleteTextures(1, &mAndroid[0].name);
     glDeleteTextures(1, &mAndroid[1].name);
     return false;
 }


 bool BootAnimation::movie()
 {
     ZipFileRO& zip(mZip);

     size_t numEntries = zip.getNumEntries();
     ZipEntryRO desc = zip.findEntryByName("desc.txt");
     FileMap* descMap = zip.createEntryFileMap(desc);
     LOGE_IF(!descMap, "descMap is null");
     if (!descMap) {
         return false;
     }

     String8 desString((char const*)descMap->getDataPtr(),
             descMap->getDataLength());
     char const* s = desString.string();

     Animation animation;

     // Parse the description file
     for (;;) {
         const char* endl = strstr(s, "\n");
         if (!endl) break;
         String8 line(s, endl - s);
         const char* l = line.string();
         int fps, width, height, count, pause;
         char path[256];
         if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
             //LOGD("> w=%d, h=%d, fps=%d", fps, width, height);
             animation.width = width;
             animation.height = height;
             animation.fps = fps;
         }
         if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
             //LOGD("> count=%d, pause=%d, path=%s", count, pause, path);
             Animation::Part part;
             part.count = count;
             part.pause = pause;
             part.path = path;
             animation.parts.add(part);
         }
         s = ++endl;
     }

     // read all the data structures
     const size_t pcount = animation.parts.size();
     for (size_t i=0 ; i<numEntries ; i++) {
         char name[256];
         ZipEntryRO entry = zip.findEntryByIndex(i);
         if (zip.getEntryFileName(entry, name, 256) == 0) {
             const String8 entryName(name);
             const String8 path(entryName.getPathDir());
             const String8 leaf(entryName.getPathLeaf());
             if (leaf.size() > 0) {
                 for (int j=0 ; j<pcount ; j++) {
                     if (path == animation.parts[j].path) {
                         int method;
                         // supports only stored png files
                         if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
                             if (method == ZipFileRO::kCompressStored) {
                                 FileMap* map = zip.createEntryFileMap(entry);
                                 if (map) {
                                     Animation::Frame frame;
                                     frame.name = leaf;
                                     frame.map = map;
                                     Animation::Part& part(animation.parts.editItemAt(j));
                                     part.frames.add(frame);
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }

     // clear screen
     glShadeModel(GL_FLAT);
     glDisable(GL_DITHER);
     glDisable(GL_SCISSOR_TEST);
     glDisable(GL_BLEND);
     glClear(GL_COLOR_BUFFER_BIT);

     eglSwapBuffers(mDisplay, mSurface);

     glBindTexture(GL_TEXTURE_2D, 0);
     glEnable(GL_TEXTURE_2D);
     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

     const int xc = (mWidth - animation.width) / 2;
     const int yc = ((mHeight - animation.height) / 2);
     nsecs_t lastFrame = systemTime();
     nsecs_t frameDuration = s2ns(1) / animation.fps;

     Region clearReg(Rect(mWidth, mHeight));
     clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));

     for (int i=0 ; i<pcount && !exitPending() ; i++) {
         const Animation::Part& part(animation.parts[i]);
         const size_t fcount = part.frames.size();
         glBindTexture(GL_TEXTURE_2D, 0);

         for (int r=0 ; !part.count || r<part.count ; r++) {
             for (int j=0 ; j<fcount && !exitPending(); j++) {
                 const Animation::Frame& frame(part.frames[j]);

                 if (r > 0) {
                     glBindTexture(GL_TEXTURE_2D, frame.tid);
                 } else {
                     if (part.count != 1) {
                         glGenTextures(1, &frame.tid);
                         glBindTexture(GL_TEXTURE_2D, frame.tid);
                         glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
                         glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
                     }
                     initTexture(
                             frame.map->getDataPtr(),
                             frame.map->getDataLength());
                 }

                 if (!clearReg.isEmpty()) {
                     Region::const_iterator head(clearReg.begin());
                     Region::const_iterator tail(clearReg.end());
                     glEnable(GL_SCISSOR_TEST);
                     while (head != tail) {
                         const Rect& r(*head++);
                         glScissor(r.left, mHeight - r.bottom,
                                 r.width(), r.height());
                         glClear(GL_COLOR_BUFFER_BIT);
                     }
                     glDisable(GL_SCISSOR_TEST);
                 }
                 glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
                 eglSwapBuffers(mDisplay, mSurface);

                 nsecs_t now = systemTime();
                 nsecs_t delay = frameDuration - (now - lastFrame);
                 lastFrame = now;
                 long wait = ns2us(frameDuration);
                 if (wait > 0)
                     usleep(wait);
             }
             usleep(part.pause * ns2us(frameDuration));
         }

         // free the textures for this part
         if (part.count != 1) {
             for (int j=0 ; j<fcount ; j++) {
                 const Animation::Frame& frame(part.frames[j]);
                 glDeleteTextures(1, &frame.tid);
             }
         }
     }

     return false;
 }

 // ---------------------------------------------------------------------------

 }
 ; // namespace android
	/*
	* Copyright (C) 2007 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.
	*/

	#define LOG_TAG "BootAnimation"

	#include <stdint.h>
	#include <sys/types.h>
	#include <math.h>
	#include <fcntl.h>
	#include <utils/misc.h>
	#include <signal.h>

	#include <binder/IPCThreadState.h>
	#include <utils/threads.h>
	#include <utils/Atomic.h>
	#include <utils/Errors.h>
	#include <utils/Log.h>
	#include <utils/AssetManager.h>

	#include <ui/PixelFormat.h>
	#include <ui/Rect.h>
	#include <ui/Region.h>
	#include <ui/DisplayInfo.h>
	#include <ui/ISurfaceComposer.h>
	#include <ui/ISurfaceFlingerClient.h>
	#include <ui/FramebufferNativeWindow.h>
	#include <ui/EGLUtils.h>

	#include <core/SkBitmap.h>
	#include <images/SkImageDecoder.h>

	#include <GLES/gl.h>
	#include <GLES/glext.h>
	#include <EGL/eglext.h>

	#include "BootAnimation.h"

	namespace android {

	// ---------------------------------------------------------------------------

	BootAnimation::BootAnimation() : Thread(false)
	{
	mSession = new SurfaceComposerClient();
	}

	BootAnimation::~BootAnimation() {
	}

	void BootAnimation::onFirstRef() {
	status_t err = mSession->linkToComposerDeath(this);
	LOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
	if (err == NO_ERROR) {
	run("BootAnimation", PRIORITY_DISPLAY);
	}
	}

	sp<SurfaceComposerClient> BootAnimation::session() const {
	return mSession;
	}


	void BootAnimation::binderDied(const wp<IBinder>& who)
	{
	// woah, surfaceflinger died!
	LOGD("SurfaceFlinger died, exiting...");

	// calling requestExit() is not enough here because the Surface code
	// might be blocked on a condition variable that will never be updated.
	kill( getpid(), SIGKILL );
	requestExit();
	}

	status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
	const char* name) {
	Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
	if (!asset)
	return NO_INIT;
	SkBitmap bitmap;
	SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
	&bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
	asset->close();
	delete asset;

	// ensure we can call getPixels(). No need to call unlock, since the
	// bitmap will go out of scope when we return from this method.
	bitmap.lockPixels();

	const int w = bitmap.width();
	const int h = bitmap.height();
	const void* p = bitmap.getPixels();

	GLint crop[4] = { 0, h, w, -h };
	texture->w = w;
	texture->h = h;

	glGenTextures(1, &texture->name);
	glBindTexture(GL_TEXTURE_2D, texture->name);

	switch (bitmap.getConfig()) {
	case SkBitmap::kA8_Config:
	glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
	GL_UNSIGNED_BYTE, p);
	break;
	case SkBitmap::kARGB_4444_Config:
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
	GL_UNSIGNED_SHORT_4_4_4_4, p);
	break;
	case SkBitmap::kARGB_8888_Config:
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
	GL_UNSIGNED_BYTE, p);
	break;
	case SkBitmap::kRGB_565_Config:
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
	GL_UNSIGNED_SHORT_5_6_5, p);
	break;
	default:
	break;
	}

	glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	return NO_ERROR;
	}

	status_t BootAnimation::initTexture(void* buffer, size_t len)
	{
	//StopWatch watch("blah");

	SkBitmap bitmap;
	SkImageDecoder::DecodeMemory(buffer, len,
	&bitmap, SkBitmap::kRGB_565_Config,
	SkImageDecoder::kDecodePixels_Mode);

	// ensure we can call getPixels(). No need to call unlock, since the
	// bitmap will go out of scope when we return from this method.
	bitmap.lockPixels();

	const int w = bitmap.width();
	const int h = bitmap.height();
	const void* p = bitmap.getPixels();

	GLint crop[4] = { 0, h, w, -h };
	int tw = 1 << (31 - __builtin_clz(w));
	int th = 1 << (31 - __builtin_clz(h));
	if (tw < w) tw <<= 1;
	if (th < h) th <<= 1;

	switch (bitmap.getConfig()) {
	case SkBitmap::kARGB_8888_Config:
	if (tw != w \|\| th != h) {
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
	GL_UNSIGNED_BYTE, 0);
	glTexSubImage2D(GL_TEXTURE_2D, 0,
	0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
	} else {
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
	GL_UNSIGNED_BYTE, p);
	}
	break;

	case SkBitmap::kRGB_565_Config:
	if (tw != w \|\| th != h) {
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
	GL_UNSIGNED_SHORT_5_6_5, 0);
	glTexSubImage2D(GL_TEXTURE_2D, 0,
	0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
	} else {
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
	GL_UNSIGNED_SHORT_5_6_5, p);
	}
	break;
	default:
	break;
	}

	glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);

	return NO_ERROR;
	}

	status_t BootAnimation::readyToRun() {
	mAssets.addDefaultAssets();

	DisplayInfo dinfo;
	status_t status = session()->getDisplayInfo(0, &dinfo);
	if (status)
	return -1;

	// create the native surface
	sp<SurfaceControl> control = session()->createSurface(
	getpid(), 0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
	session()->openTransaction();
	control->setLayer(0x40000000);
	session()->closeTransaction();

	sp<Surface> s = control->getSurface();

	// initialize opengl and egl
	const EGLint attribs[] = {
	EGL_DEPTH_SIZE, 0,
	EGL_NONE
	};
	EGLint w, h, dummy;
	EGLint numConfigs;
	EGLConfig config;
	EGLSurface surface;
	EGLContext context;

	EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);

	eglInitialize(display, 0, 0);
	EGLUtils::selectConfigForNativeWindow(display, attribs, s.get(), &config);
	surface = eglCreateWindowSurface(display, config, s.get(), NULL);
	context = eglCreateContext(display, config, NULL, NULL);
	eglQuerySurface(display, surface, EGL_WIDTH, &w);
	eglQuerySurface(display, surface, EGL_HEIGHT, &h);

	if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
	return NO_INIT;

	mDisplay = display;
	mContext = context;
	mSurface = surface;
	mWidth = w;
	mHeight = h;
	mFlingerSurfaceControl = control;
	mFlingerSurface = s;

	mAndroidAnimation = false;
	status_t err = mZip.open("/data/local/bootanimation.zip");
	if (err != NO_ERROR) {
	err = mZip.open("/system/media/bootanimation.zip");
	if (err != NO_ERROR) {
	mAndroidAnimation = true;
	}
	}

	return NO_ERROR;
	}

	bool BootAnimation::threadLoop()
	{
	bool r;
	if (mAndroidAnimation) {
	r = android();
	} else {
	r = movie();
	}

	eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
	eglDestroyContext(mDisplay, mContext);
	eglDestroySurface(mDisplay, mSurface);
	mFlingerSurface.clear();
	mFlingerSurfaceControl.clear();
	eglTerminate(mDisplay);
	IPCThreadState::self()->stopProcess();
	return r;
	}

	bool BootAnimation::android()
	{
	initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
	initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");

	// clear screen
	glShadeModel(GL_FLAT);
	glDisable(GL_DITHER);
	glDisable(GL_SCISSOR_TEST);
	glClear(GL_COLOR_BUFFER_BIT);
	eglSwapBuffers(mDisplay, mSurface);

	glEnable(GL_TEXTURE_2D);
	glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

	const GLint xc = (mWidth - mAndroid[0].w) / 2;
	const GLint yc = (mHeight - mAndroid[0].h) / 2;
	const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);

	// draw and update only what we need
	mFlingerSurface->setSwapRectangle(updateRect);

	glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
	updateRect.height());

	// Blend state
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

	const nsecs_t startTime = systemTime();
	do {
	nsecs_t now = systemTime();
	double time = now - startTime;
	float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
	GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
	GLint x = xc - offset;

	glDisable(GL_SCISSOR_TEST);
	glClear(GL_COLOR_BUFFER_BIT);

	glEnable(GL_SCISSOR_TEST);
	glDisable(GL_BLEND);
	glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
	glDrawTexiOES(x, yc, 0, mAndroid[1].w, mAndroid[1].h);
	glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);

	glEnable(GL_BLEND);
	glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
	glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);

	EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
	if (res == EGL_FALSE)
	break;

	// 12fps: don't animate too fast to preserve CPU
	const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
	if (sleepTime > 0)
	usleep(sleepTime);
	} while (!exitPending());

	glDeleteTextures(1, &mAndroid[0].name);
	glDeleteTextures(1, &mAndroid[1].name);
	return false;
	}


	bool BootAnimation::movie()
	{
	ZipFileRO& zip(mZip);

	size_t numEntries = zip.getNumEntries();
	ZipEntryRO desc = zip.findEntryByName("desc.txt");
	FileMap* descMap = zip.createEntryFileMap(desc);
	LOGE_IF(!descMap, "descMap is null");
	if (!descMap) {
	return false;
	}

	String8 desString((char const*)descMap->getDataPtr(),
	descMap->getDataLength());
	char const* s = desString.string();

	Animation animation;

	// Parse the description file
	for (;;) {
	const char* endl = strstr(s, "\n");
	if (!endl) break;
	String8 line(s, endl - s);
	const char* l = line.string();
	int fps, width, height, count, pause;
	char path[256];
	if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
	//LOGD("> w=%d, h=%d, fps=%d", fps, width, height);
	animation.width = width;
	animation.height = height;
	animation.fps = fps;
	}
	if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
	//LOGD("> count=%d, pause=%d, path=%s", count, pause, path);
	Animation::Part part;
	part.count = count;
	part.pause = pause;
	part.path = path;
	animation.parts.add(part);
	}
	s = ++endl;
	}

	// read all the data structures
	const size_t pcount = animation.parts.size();
	for (size_t i=0 ; i<numEntries ; i++) {
	char name[256];
	ZipEntryRO entry = zip.findEntryByIndex(i);
	if (zip.getEntryFileName(entry, name, 256) == 0) {
	const String8 entryName(name);
	const String8 path(entryName.getPathDir());
	const String8 leaf(entryName.getPathLeaf());
	if (leaf.size() > 0) {
	for (int j=0 ; j<pcount ; j++) {
	if (path == animation.parts[j].path) {
	int method;
	// supports only stored png files
	if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
	if (method == ZipFileRO::kCompressStored) {
	FileMap* map = zip.createEntryFileMap(entry);
	if (map) {
	Animation::Frame frame;
	frame.name = leaf;
	frame.map = map;
	Animation::Part& part(animation.parts.editItemAt(j));
	part.frames.add(frame);
	}
	}
	}
	}
	}
	}
	}
	}

	// clear screen
	glShadeModel(GL_FLAT);
	glDisable(GL_DITHER);
	glDisable(GL_SCISSOR_TEST);
	glDisable(GL_BLEND);
	glClear(GL_COLOR_BUFFER_BIT);

	eglSwapBuffers(mDisplay, mSurface);

	glBindTexture(GL_TEXTURE_2D, 0);
	glEnable(GL_TEXTURE_2D);
	glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

	const int xc = (mWidth - animation.width) / 2;
	const int yc = ((mHeight - animation.height) / 2);
	nsecs_t lastFrame = systemTime();
	nsecs_t frameDuration = s2ns(1) / animation.fps;

	Region clearReg(Rect(mWidth, mHeight));
	clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));

	for (int i=0 ; i<pcount && !exitPending() ; i++) {
	const Animation::Part& part(animation.parts[i]);
	const size_t fcount = part.frames.size();
	glBindTexture(GL_TEXTURE_2D, 0);

	for (int r=0 ; !part.count \|\| r<part.count ; r++) {
	for (int j=0 ; j<fcount && !exitPending(); j++) {
	const Animation::Frame& frame(part.frames[j]);

	if (r > 0) {
	glBindTexture(GL_TEXTURE_2D, frame.tid);
	} else {
	if (part.count != 1) {
	glGenTextures(1, &frame.tid);
	glBindTexture(GL_TEXTURE_2D, frame.tid);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	}
	initTexture(
	frame.map->getDataPtr(),
	frame.map->getDataLength());
	}

	if (!clearReg.isEmpty()) {
	Region::const_iterator head(clearReg.begin());
	Region::const_iterator tail(clearReg.end());
	glEnable(GL_SCISSOR_TEST);
	while (head != tail) {
	const Rect& r(*head++);
	glScissor(r.left, mHeight - r.bottom,
	r.width(), r.height());
	glClear(GL_COLOR_BUFFER_BIT);
	}
	glDisable(GL_SCISSOR_TEST);
	}
	glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
	eglSwapBuffers(mDisplay, mSurface);

	nsecs_t now = systemTime();
	nsecs_t delay = frameDuration - (now - lastFrame);
	lastFrame = now;
	long wait = ns2us(frameDuration);
	if (wait > 0)
	usleep(wait);
	}
	usleep(part.pause * ns2us(frameDuration));
	}

	// free the textures for this part
	if (part.count != 1) {
	for (int j=0 ; j<fcount ; j++) {
	const Animation::Frame& frame(part.frames[j]);
	glDeleteTextures(1, &frame.tid);
	}
	}
	}

	return false;
	}

	// ---------------------------------------------------------------------------

	}
	; // namespace android