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_NDEBUG 0
18 #define LOG_TAG "BootAnimation"
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 #include <math.h>
23 #include <fcntl.h>
24 #include <utils/misc.h>
25 #include <signal.h>
26 #include <time.h>
27 
28 #include <cutils/properties.h>
29 
30 #include <androidfw/AssetManager.h>
31 #include <binder/IPCThreadState.h>
32 #include <utils/Atomic.h>
33 #include <utils/Errors.h>
34 #include <utils/Log.h>
35 
36 #include <ui/PixelFormat.h>
37 #include <ui/Rect.h>
38 #include <ui/Region.h>
39 #include <ui/DisplayInfo.h>
40 
41 #include <gui/ISurfaceComposer.h>
42 #include <gui/Surface.h>
43 #include <gui/SurfaceComposerClient.h>
44 
45 // TODO: Fix Skia.
46 #pragma GCC diagnostic push
47 #pragma GCC diagnostic ignored "-Wunused-parameter"
48 #include <SkBitmap.h>
49 #include <SkStream.h>
50 #include <SkImageDecoder.h>
51 #pragma GCC diagnostic pop
52 
53 #include <GLES/gl.h>
54 #include <GLES/glext.h>
55 #include <EGL/eglext.h>
56 
57 #include "BootAnimation.h"
58 #include "AudioPlayer.h"
59 
60 #define OEM_BOOTANIMATION_FILE "/oem/media/bootanimation.zip"
61 #define SYSTEM_BOOTANIMATION_FILE "/system/media/bootanimation.zip"
62 #define SYSTEM_ENCRYPTED_BOOTANIMATION_FILE "/system/media/bootanimation-encrypted.zip"
63 #define EXIT_PROP_NAME "service.bootanim.exit"
64 
65 namespace android {
66 
67 static const int ANIM_ENTRY_NAME_MAX = 256;
68 
69 // ---------------------------------------------------------------------------
70 
BootAnimation()71 BootAnimation::BootAnimation() : Thread(false), mClockEnabled(true) {
72     mSession = new SurfaceComposerClient();
73 }
74 
~BootAnimation()75 BootAnimation::~BootAnimation() {
76 }
77 
onFirstRef()78 void BootAnimation::onFirstRef() {
79     status_t err = mSession->linkToComposerDeath(this);
80     ALOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
81     if (err == NO_ERROR) {
82         run("BootAnimation", PRIORITY_DISPLAY);
83     }
84 }
85 
session() const86 sp<SurfaceComposerClient> BootAnimation::session() const {
87     return mSession;
88 }
89 
90 
binderDied(const wp<IBinder> &)91 void BootAnimation::binderDied(const wp<IBinder>&)
92 {
93     // woah, surfaceflinger died!
94     ALOGD("SurfaceFlinger died, exiting...");
95 
96     // calling requestExit() is not enough here because the Surface code
97     // might be blocked on a condition variable that will never be updated.
98     kill( getpid(), SIGKILL );
99     requestExit();
100     if (mAudioPlayer != NULL) {
101         mAudioPlayer->requestExit();
102     }
103 }
104 
initTexture(Texture * texture,AssetManager & assets,const char * name)105 status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
106         const char* name) {
107     Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
108     if (asset == NULL)
109         return NO_INIT;
110     SkBitmap bitmap;
111     SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
112             &bitmap, kUnknown_SkColorType, SkImageDecoder::kDecodePixels_Mode);
113     asset->close();
114     delete asset;
115 
116     // ensure we can call getPixels(). No need to call unlock, since the
117     // bitmap will go out of scope when we return from this method.
118     bitmap.lockPixels();
119 
120     const int w = bitmap.width();
121     const int h = bitmap.height();
122     const void* p = bitmap.getPixels();
123 
124     GLint crop[4] = { 0, h, w, -h };
125     texture->w = w;
126     texture->h = h;
127 
128     glGenTextures(1, &texture->name);
129     glBindTexture(GL_TEXTURE_2D, texture->name);
130 
131     switch (bitmap.colorType()) {
132         case kAlpha_8_SkColorType:
133             glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
134                     GL_UNSIGNED_BYTE, p);
135             break;
136         case kARGB_4444_SkColorType:
137             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
138                     GL_UNSIGNED_SHORT_4_4_4_4, p);
139             break;
140         case kN32_SkColorType:
141             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
142                     GL_UNSIGNED_BYTE, p);
143             break;
144         case kRGB_565_SkColorType:
145             glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
146                     GL_UNSIGNED_SHORT_5_6_5, p);
147             break;
148         default:
149             break;
150     }
151 
152     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
153     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
154     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
155     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
156     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
157     return NO_ERROR;
158 }
159 
initTexture(const Animation::Frame & frame)160 status_t BootAnimation::initTexture(const Animation::Frame& frame)
161 {
162     //StopWatch watch("blah");
163 
164     SkBitmap bitmap;
165     SkMemoryStream  stream(frame.map->getDataPtr(), frame.map->getDataLength());
166     SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
167     if (codec != NULL) {
168         codec->setDitherImage(false);
169         codec->decode(&stream, &bitmap,
170                 kN32_SkColorType,
171                 SkImageDecoder::kDecodePixels_Mode);
172         delete codec;
173     }
174 
175     // FileMap memory is never released until application exit.
176     // Release it now as the texture is already loaded and the memory used for
177     // the packed resource can be released.
178     delete frame.map;
179 
180     // ensure we can call getPixels(). No need to call unlock, since the
181     // bitmap will go out of scope when we return from this method.
182     bitmap.lockPixels();
183 
184     const int w = bitmap.width();
185     const int h = bitmap.height();
186     const void* p = bitmap.getPixels();
187 
188     GLint crop[4] = { 0, h, w, -h };
189     int tw = 1 << (31 - __builtin_clz(w));
190     int th = 1 << (31 - __builtin_clz(h));
191     if (tw < w) tw <<= 1;
192     if (th < h) th <<= 1;
193 
194     switch (bitmap.colorType()) {
195         case kN32_SkColorType:
196             if (tw != w || th != h) {
197                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
198                         GL_UNSIGNED_BYTE, 0);
199                 glTexSubImage2D(GL_TEXTURE_2D, 0,
200                         0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
201             } else {
202                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
203                         GL_UNSIGNED_BYTE, p);
204             }
205             break;
206 
207         case kRGB_565_SkColorType:
208             if (tw != w || th != h) {
209                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
210                         GL_UNSIGNED_SHORT_5_6_5, 0);
211                 glTexSubImage2D(GL_TEXTURE_2D, 0,
212                         0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
213             } else {
214                 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
215                         GL_UNSIGNED_SHORT_5_6_5, p);
216             }
217             break;
218         default:
219             break;
220     }
221 
222     glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
223 
224     return NO_ERROR;
225 }
226 
readyToRun()227 status_t BootAnimation::readyToRun() {
228     mAssets.addDefaultAssets();
229 
230     sp<IBinder> dtoken(SurfaceComposerClient::getBuiltInDisplay(
231             ISurfaceComposer::eDisplayIdMain));
232     DisplayInfo dinfo;
233     status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &dinfo);
234     if (status)
235         return -1;
236 
237     // create the native surface
238     sp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"),
239             dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
240 
241     SurfaceComposerClient::openGlobalTransaction();
242     control->setLayer(0x40000000);
243     SurfaceComposerClient::closeGlobalTransaction();
244 
245     sp<Surface> s = control->getSurface();
246 
247     // initialize opengl and egl
248     const EGLint attribs[] = {
249             EGL_RED_SIZE,   8,
250             EGL_GREEN_SIZE, 8,
251             EGL_BLUE_SIZE,  8,
252             EGL_DEPTH_SIZE, 0,
253             EGL_NONE
254     };
255     EGLint w, h;
256     EGLint numConfigs;
257     EGLConfig config;
258     EGLSurface surface;
259     EGLContext context;
260 
261     EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
262 
263     eglInitialize(display, 0, 0);
264     eglChooseConfig(display, attribs, &config, 1, &numConfigs);
265     surface = eglCreateWindowSurface(display, config, s.get(), NULL);
266     context = eglCreateContext(display, config, NULL, NULL);
267     eglQuerySurface(display, surface, EGL_WIDTH, &w);
268     eglQuerySurface(display, surface, EGL_HEIGHT, &h);
269 
270     if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
271         return NO_INIT;
272 
273     mDisplay = display;
274     mContext = context;
275     mSurface = surface;
276     mWidth = w;
277     mHeight = h;
278     mFlingerSurfaceControl = control;
279     mFlingerSurface = s;
280 
281     // If the device has encryption turned on or is in process
282     // of being encrypted we show the encrypted boot animation.
283     char decrypt[PROPERTY_VALUE_MAX];
284     property_get("vold.decrypt", decrypt, "");
285 
286     bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
287 
288     if (encryptedAnimation && (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0)) {
289         mZipFileName = SYSTEM_ENCRYPTED_BOOTANIMATION_FILE;
290     }
291     else if (access(OEM_BOOTANIMATION_FILE, R_OK) == 0) {
292         mZipFileName = OEM_BOOTANIMATION_FILE;
293     }
294     else if (access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) {
295         mZipFileName = SYSTEM_BOOTANIMATION_FILE;
296     }
297     return NO_ERROR;
298 }
299 
threadLoop()300 bool BootAnimation::threadLoop()
301 {
302     bool r;
303     // We have no bootanimation file, so we use the stock android logo
304     // animation.
305     if (mZipFileName.isEmpty()) {
306         r = android();
307     } else {
308         r = movie();
309     }
310 
311     eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
312     eglDestroyContext(mDisplay, mContext);
313     eglDestroySurface(mDisplay, mSurface);
314     mFlingerSurface.clear();
315     mFlingerSurfaceControl.clear();
316     eglTerminate(mDisplay);
317     IPCThreadState::self()->stopProcess();
318     return r;
319 }
320 
android()321 bool BootAnimation::android()
322 {
323     initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
324     initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
325 
326     // clear screen
327     glShadeModel(GL_FLAT);
328     glDisable(GL_DITHER);
329     glDisable(GL_SCISSOR_TEST);
330     glClearColor(0,0,0,1);
331     glClear(GL_COLOR_BUFFER_BIT);
332     eglSwapBuffers(mDisplay, mSurface);
333 
334     glEnable(GL_TEXTURE_2D);
335     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
336 
337     const GLint xc = (mWidth  - mAndroid[0].w) / 2;
338     const GLint yc = (mHeight - mAndroid[0].h) / 2;
339     const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
340 
341     glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
342             updateRect.height());
343 
344     // Blend state
345     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
346     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
347 
348     const nsecs_t startTime = systemTime();
349     do {
350         nsecs_t now = systemTime();
351         double time = now - startTime;
352         float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
353         GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
354         GLint x = xc - offset;
355 
356         glDisable(GL_SCISSOR_TEST);
357         glClear(GL_COLOR_BUFFER_BIT);
358 
359         glEnable(GL_SCISSOR_TEST);
360         glDisable(GL_BLEND);
361         glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
362         glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
363         glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
364 
365         glEnable(GL_BLEND);
366         glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
367         glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
368 
369         EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
370         if (res == EGL_FALSE)
371             break;
372 
373         // 12fps: don't animate too fast to preserve CPU
374         const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
375         if (sleepTime > 0)
376             usleep(sleepTime);
377 
378         checkExit();
379     } while (!exitPending());
380 
381     glDeleteTextures(1, &mAndroid[0].name);
382     glDeleteTextures(1, &mAndroid[1].name);
383     return false;
384 }
385 
386 
checkExit()387 void BootAnimation::checkExit() {
388     // Allow surface flinger to gracefully request shutdown
389     char value[PROPERTY_VALUE_MAX];
390     property_get(EXIT_PROP_NAME, value, "0");
391     int exitnow = atoi(value);
392     if (exitnow) {
393         requestExit();
394         if (mAudioPlayer != NULL) {
395             mAudioPlayer->requestExit();
396         }
397     }
398 }
399 
400 // Parse a color represented as an HTML-style 'RRGGBB' string: each pair of
401 // characters in str is a hex number in [0, 255], which are converted to
402 // floating point values in the range [0.0, 1.0] and placed in the
403 // corresponding elements of color.
404 //
405 // If the input string isn't valid, parseColor returns false and color is
406 // left unchanged.
parseColor(const char str[7],float color[3])407 static bool parseColor(const char str[7], float color[3]) {
408     float tmpColor[3];
409     for (int i = 0; i < 3; i++) {
410         int val = 0;
411         for (int j = 0; j < 2; j++) {
412             val *= 16;
413             char c = str[2*i + j];
414             if      (c >= '0' && c <= '9') val += c - '0';
415             else if (c >= 'A' && c <= 'F') val += (c - 'A') + 10;
416             else if (c >= 'a' && c <= 'f') val += (c - 'a') + 10;
417             else                           return false;
418         }
419         tmpColor[i] = static_cast<float>(val) / 255.0f;
420     }
421     memcpy(color, tmpColor, sizeof(tmpColor));
422     return true;
423 }
424 
425 
readFile(ZipFileRO * zip,const char * name,String8 & outString)426 static bool readFile(ZipFileRO* zip, const char* name, String8& outString)
427 {
428     ZipEntryRO entry = zip->findEntryByName(name);
429     ALOGE_IF(!entry, "couldn't find %s", name);
430     if (!entry) {
431         return false;
432     }
433 
434     FileMap* entryMap = zip->createEntryFileMap(entry);
435     zip->releaseEntry(entry);
436     ALOGE_IF(!entryMap, "entryMap is null");
437     if (!entryMap) {
438         return false;
439     }
440 
441     outString.setTo((char const*)entryMap->getDataPtr(), entryMap->getDataLength());
442     delete entryMap;
443     return true;
444 }
445 
446 // The time glyphs are stored in a single image of height 64 pixels. Each digit is 40 pixels wide,
447 // and the colon character is half that at 20 pixels. The glyph order is '0123456789:'.
448 // We render 24 hour time.
drawTime(const Texture & clockTex,const int yPos)449 void BootAnimation::drawTime(const Texture& clockTex, const int yPos) {
450     static constexpr char TIME_FORMAT[] = "%H:%M";
451     static constexpr int TIME_LENGTH = sizeof(TIME_FORMAT);
452 
453     static constexpr int DIGIT_HEIGHT = 64;
454     static constexpr int DIGIT_WIDTH = 40;
455     static constexpr int COLON_WIDTH = DIGIT_WIDTH / 2;
456     static constexpr int TIME_WIDTH = (DIGIT_WIDTH * 4) + COLON_WIDTH;
457 
458     if (clockTex.h < DIGIT_HEIGHT || clockTex.w < (10 * DIGIT_WIDTH + COLON_WIDTH)) {
459         ALOGE("Clock texture is too small; abandoning boot animation clock");
460         mClockEnabled = false;
461         return;
462     }
463 
464     time_t rawtime;
465     time(&rawtime);
466     struct tm* timeInfo = localtime(&rawtime);
467 
468     char timeBuff[TIME_LENGTH];
469     size_t length = strftime(timeBuff, TIME_LENGTH, TIME_FORMAT, timeInfo);
470 
471     if (length != TIME_LENGTH - 1) {
472         ALOGE("Couldn't format time; abandoning boot animation clock");
473         mClockEnabled = false;
474         return;
475     }
476 
477     glEnable(GL_BLEND);  // Allow us to draw on top of the animation
478     glBindTexture(GL_TEXTURE_2D, clockTex.name);
479 
480     int xPos = (mWidth - TIME_WIDTH) / 2;
481     int cropRect[4] = { 0, DIGIT_HEIGHT, DIGIT_WIDTH, -DIGIT_HEIGHT };
482 
483     for (int i = 0; i < TIME_LENGTH - 1; i++) {
484         char c = timeBuff[i];
485         int width = DIGIT_WIDTH;
486         int pos = c - '0';  // Position in the character list
487         if (pos < 0 || pos > 10) {
488             continue;
489         }
490         if (c == ':') {
491             width = COLON_WIDTH;
492         }
493 
494         // Crop the texture to only the pixels in the current glyph
495         int left = pos * DIGIT_WIDTH;
496         cropRect[0] = left;
497         cropRect[2] = width;
498         glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
499 
500         glDrawTexiOES(xPos, yPos, 0, width, DIGIT_HEIGHT);
501 
502         xPos += width;
503     }
504 
505     glDisable(GL_BLEND);  // Return to the animation's default behaviour
506     glBindTexture(GL_TEXTURE_2D, 0);
507 }
508 
parseAnimationDesc(Animation & animation)509 bool BootAnimation::parseAnimationDesc(Animation& animation)
510 {
511     String8 desString;
512 
513     if (!readFile(animation.zip, "desc.txt", desString)) {
514         return false;
515     }
516     char const* s = desString.string();
517 
518     // Create and initialize an AudioPlayer if we have an audio_conf.txt file
519     String8 audioConf;
520     if (readFile(animation.zip, "audio_conf.txt", audioConf)) {
521         mAudioPlayer = new AudioPlayer;
522         if (!mAudioPlayer->init(audioConf.string())) {
523             ALOGE("mAudioPlayer.init failed");
524             mAudioPlayer = NULL;
525         }
526     }
527 
528     // Parse the description file
529     for (;;) {
530         const char* endl = strstr(s, "\n");
531         if (endl == NULL) break;
532         String8 line(s, endl - s);
533         const char* l = line.string();
534         int fps = 0;
535         int width = 0;
536         int height = 0;
537         int count = 0;
538         int pause = 0;
539         int clockPosY = -1;
540         char path[ANIM_ENTRY_NAME_MAX];
541         char color[7] = "000000"; // default to black if unspecified
542 
543         char pathType;
544         if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
545             // ALOGD("> w=%d, h=%d, fps=%d", width, height, fps);
546             animation.width = width;
547             animation.height = height;
548             animation.fps = fps;
549         } else if (sscanf(l, " %c %d %d %s #%6s %d",
550                           &pathType, &count, &pause, path, color, &clockPosY) >= 4) {
551             // ALOGD("> type=%c, count=%d, pause=%d, path=%s, color=%s, clockPosY=%d", pathType, count, pause, path, color, clockPosY);
552             Animation::Part part;
553             part.playUntilComplete = pathType == 'c';
554             part.count = count;
555             part.pause = pause;
556             part.path = path;
557             part.clockPosY = clockPosY;
558             part.audioFile = NULL;
559             part.animation = NULL;
560             if (!parseColor(color, part.backgroundColor)) {
561                 ALOGE("> invalid color '#%s'", color);
562                 part.backgroundColor[0] = 0.0f;
563                 part.backgroundColor[1] = 0.0f;
564                 part.backgroundColor[2] = 0.0f;
565             }
566             animation.parts.add(part);
567         }
568         else if (strcmp(l, "$SYSTEM") == 0) {
569             // ALOGD("> SYSTEM");
570             Animation::Part part;
571             part.playUntilComplete = false;
572             part.count = 1;
573             part.pause = 0;
574             part.audioFile = NULL;
575             part.animation = loadAnimation(String8(SYSTEM_BOOTANIMATION_FILE));
576             if (part.animation != NULL)
577                 animation.parts.add(part);
578         }
579         s = ++endl;
580     }
581 
582     return true;
583 }
584 
preloadZip(Animation & animation)585 bool BootAnimation::preloadZip(Animation& animation)
586 {
587     // read all the data structures
588     const size_t pcount = animation.parts.size();
589     void *cookie = NULL;
590     ZipFileRO* mZip = animation.zip;
591     if (!mZip->startIteration(&cookie)) {
592         return false;
593     }
594 
595     ZipEntryRO entry;
596     char name[ANIM_ENTRY_NAME_MAX];
597     while ((entry = mZip->nextEntry(cookie)) != NULL) {
598         const int foundEntryName = mZip->getEntryFileName(entry, name, ANIM_ENTRY_NAME_MAX);
599         if (foundEntryName > ANIM_ENTRY_NAME_MAX || foundEntryName == -1) {
600             ALOGE("Error fetching entry file name");
601             continue;
602         }
603 
604         const String8 entryName(name);
605         const String8 path(entryName.getPathDir());
606         const String8 leaf(entryName.getPathLeaf());
607         if (leaf.size() > 0) {
608             for (size_t j=0 ; j<pcount ; j++) {
609                 if (path == animation.parts[j].path) {
610                     uint16_t method;
611                     // supports only stored png files
612                     if (mZip->getEntryInfo(entry, &method, NULL, NULL, NULL, NULL, NULL)) {
613                         if (method == ZipFileRO::kCompressStored) {
614                             FileMap* map = mZip->createEntryFileMap(entry);
615                             if (map) {
616                                 Animation::Part& part(animation.parts.editItemAt(j));
617                                 if (leaf == "audio.wav") {
618                                     // a part may have at most one audio file
619                                     part.audioFile = map;
620                                 } else {
621                                     Animation::Frame frame;
622                                     frame.name = leaf;
623                                     frame.map = map;
624                                     part.frames.add(frame);
625                                 }
626                             }
627                         }
628                     }
629                 }
630             }
631         }
632     }
633 
634     mZip->endIteration(cookie);
635 
636     return true;
637 }
638 
movie()639 bool BootAnimation::movie()
640 {
641 
642     Animation* animation = loadAnimation(mZipFileName);
643     if (animation == NULL)
644         return false;
645 
646     // Blend required to draw time on top of animation frames.
647     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
648     glShadeModel(GL_FLAT);
649     glDisable(GL_DITHER);
650     glDisable(GL_SCISSOR_TEST);
651     glDisable(GL_BLEND);
652 
653     glBindTexture(GL_TEXTURE_2D, 0);
654     glEnable(GL_TEXTURE_2D);
655     glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
656     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
657     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
658     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
659     glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
660 
661     bool clockTextureInitialized = false;
662     if (mClockEnabled) {
663         clockTextureInitialized = (initTexture(&mClock, mAssets, "images/clock64.png") == NO_ERROR);
664         mClockEnabled = clockTextureInitialized;
665     }
666 
667     playAnimation(*animation);
668     releaseAnimation(animation);
669 
670     if (clockTextureInitialized) {
671         glDeleteTextures(1, &mClock.name);
672     }
673 
674     return false;
675 }
676 
playAnimation(const Animation & animation)677 bool BootAnimation::playAnimation(const Animation& animation)
678 {
679     const size_t pcount = animation.parts.size();
680     const int xc = (mWidth - animation.width) / 2;
681     const int yc = ((mHeight - animation.height) / 2);
682     nsecs_t frameDuration = s2ns(1) / animation.fps;
683 
684     Region clearReg(Rect(mWidth, mHeight));
685     clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
686 
687     for (size_t i=0 ; i<pcount ; i++) {
688         const Animation::Part& part(animation.parts[i]);
689         const size_t fcount = part.frames.size();
690         glBindTexture(GL_TEXTURE_2D, 0);
691 
692         // Handle animation package
693         if (part.animation != NULL) {
694             playAnimation(*part.animation);
695             if (exitPending())
696                 break;
697             continue; //to next part
698         }
699 
700         for (int r=0 ; !part.count || r<part.count ; r++) {
701             // Exit any non playuntil complete parts immediately
702             if(exitPending() && !part.playUntilComplete)
703                 break;
704 
705             // only play audio file the first time we animate the part
706             if (r == 0 && mAudioPlayer != NULL && part.audioFile) {
707                 mAudioPlayer->playFile(part.audioFile);
708             }
709 
710             glClearColor(
711                     part.backgroundColor[0],
712                     part.backgroundColor[1],
713                     part.backgroundColor[2],
714                     1.0f);
715 
716             for (size_t j=0 ; j<fcount && (!exitPending() || part.playUntilComplete) ; j++) {
717                 const Animation::Frame& frame(part.frames[j]);
718                 nsecs_t lastFrame = systemTime();
719 
720                 if (r > 0) {
721                     glBindTexture(GL_TEXTURE_2D, frame.tid);
722                 } else {
723                     if (part.count != 1) {
724                         glGenTextures(1, &frame.tid);
725                         glBindTexture(GL_TEXTURE_2D, frame.tid);
726                         glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
727                         glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
728                     }
729                     initTexture(frame);
730                 }
731 
732                 if (!clearReg.isEmpty()) {
733                     Region::const_iterator head(clearReg.begin());
734                     Region::const_iterator tail(clearReg.end());
735                     glEnable(GL_SCISSOR_TEST);
736                     while (head != tail) {
737                         const Rect& r2(*head++);
738                         glScissor(r2.left, mHeight - r2.bottom,
739                                 r2.width(), r2.height());
740                         glClear(GL_COLOR_BUFFER_BIT);
741                     }
742                     glDisable(GL_SCISSOR_TEST);
743                 }
744                 // specify the y center as ceiling((mHeight - animation.height) / 2)
745                 // which is equivalent to mHeight - (yc + animation.height)
746                 glDrawTexiOES(xc, mHeight - (yc + animation.height),
747                               0, animation.width, animation.height);
748                 if (mClockEnabled && part.clockPosY >= 0) {
749                     drawTime(mClock, part.clockPosY);
750                 }
751 
752                 eglSwapBuffers(mDisplay, mSurface);
753 
754                 nsecs_t now = systemTime();
755                 nsecs_t delay = frameDuration - (now - lastFrame);
756                 //ALOGD("%lld, %lld", ns2ms(now - lastFrame), ns2ms(delay));
757                 lastFrame = now;
758 
759                 if (delay > 0) {
760                     struct timespec spec;
761                     spec.tv_sec  = (now + delay) / 1000000000;
762                     spec.tv_nsec = (now + delay) % 1000000000;
763                     int err;
764                     do {
765                         err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
766                     } while (err<0 && errno == EINTR);
767                 }
768 
769                 checkExit();
770             }
771 
772             usleep(part.pause * ns2us(frameDuration));
773 
774             // For infinite parts, we've now played them at least once, so perhaps exit
775             if(exitPending() && !part.count)
776                 break;
777         }
778 
779         // free the textures for this part
780         if (part.count != 1) {
781             for (size_t j=0 ; j<fcount ; j++) {
782                 const Animation::Frame& frame(part.frames[j]);
783                 glDeleteTextures(1, &frame.tid);
784             }
785         }
786     }
787     return true;
788 }
789 
releaseAnimation(Animation * animation) const790 void BootAnimation::releaseAnimation(Animation* animation) const
791 {
792     for (Vector<Animation::Part>::iterator it = animation->parts.begin(),
793          e = animation->parts.end(); it != e; ++it) {
794         if (it->animation)
795             releaseAnimation(it->animation);
796     }
797     if (animation->zip)
798         delete animation->zip;
799     delete animation;
800 }
801 
loadAnimation(const String8 & fn)802 BootAnimation::Animation* BootAnimation::loadAnimation(const String8& fn)
803 {
804     if (mLoadedFiles.indexOf(fn) >= 0) {
805         ALOGE("File \"%s\" is already loaded. Cyclic ref is not allowed",
806             fn.string());
807         return NULL;
808     }
809     ZipFileRO *zip = ZipFileRO::open(fn);
810     if (zip == NULL) {
811         ALOGE("Failed to open animation zip \"%s\": %s",
812             fn.string(), strerror(errno));
813         return NULL;
814     }
815 
816     Animation *animation =  new Animation;
817     animation->fileName = fn;
818     animation->zip = zip;
819     mLoadedFiles.add(animation->fileName);
820 
821     parseAnimationDesc(*animation);
822     preloadZip(*animation);
823 
824     mLoadedFiles.remove(fn);
825     return animation;
826 }
827 // ---------------------------------------------------------------------------
828 
829 }
830 ; // namespace android
831