BootAnimation.cpp revision 0b722fe9ce98d97dbcb6fefd170b85ab7037e528 
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#include <signal.h>
25
26#include <cutils/properties.h>
27
28#include <androidfw/AssetManager.h>
29#include <binder/IPCThreadState.h>
30#include <utils/Atomic.h>
31#include <utils/Errors.h>
32#include <utils/Log.h>
33#include <utils/threads.h>
34
35#include <ui/PixelFormat.h>
36#include <ui/Rect.h>
37#include <ui/Region.h>
38#include <ui/DisplayInfo.h>
39#include <ui/FramebufferNativeWindow.h>
40
41#include <gui/ISurfaceComposer.h>
42#include <gui/Surface.h>
43#include <gui/SurfaceComposerClient.h>
44
45#include <core/SkBitmap.h>
46#include <core/SkStream.h>
47#include <images/SkImageDecoder.h>
48
49#include <GLES/gl.h>
50#include <GLES/glext.h>
51#include <EGL/eglext.h>
52
53#include "BootAnimation.h"
54
55#define USER_BOOTANIMATION_FILE "/data/local/bootanimation.zip"
56#define SYSTEM_BOOTANIMATION_FILE "/system/media/bootanimation.zip"
57#define SYSTEM_ENCRYPTED_BOOTANIMATION_FILE "/system/media/bootanimation-encrypted.zip"
58#define EXIT_PROP_NAME "service.bootanim.exit"
59
60extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
61                           const struct timespec *request,
62                           struct timespec *remain);
63
64namespace android {
65
66// ---------------------------------------------------------------------------
67
68BootAnimation::BootAnimation() : Thread(false)
69{
70    mSession = new SurfaceComposerClient();
71}
72
73BootAnimation::~BootAnimation() {
74}
75
76void BootAnimation::onFirstRef() {
77    status_t err = mSession->linkToComposerDeath(this);
78    ALOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
79    if (err == NO_ERROR) {
80        run("BootAnimation", PRIORITY_DISPLAY);
81    }
82}
83
84sp<SurfaceComposerClient> BootAnimation::session() const {
85    return mSession;
86}
87
88
89void BootAnimation::binderDied(const wp<IBinder>& who)
90{
91    // woah, surfaceflinger died!
92    ALOGD("SurfaceFlinger died, exiting...");
93
94    // calling requestExit() is not enough here because the Surface code
95    // might be blocked on a condition variable that will never be updated.
96    kill( getpid(), SIGKILL );
97    requestExit();
98}
99
100status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
101        const char* name) {
102    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
103    if (!asset)
104        return NO_INIT;
105    SkBitmap bitmap;
106    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
107            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
108    asset->close();
109    delete asset;
110
111    // ensure we can call getPixels(). No need to call unlock, since the
112    // bitmap will go out of scope when we return from this method.
113    bitmap.lockPixels();
114
115    const int w = bitmap.width();
116    const int h = bitmap.height();
117    const void* p = bitmap.getPixels();
118
119    GLint crop[4] = { 0, h, w, -h };
120    texture->w = w;
121    texture->h = h;
122
123    glGenTextures(1, &texture->name);
124    glBindTexture(GL_TEXTURE_2D, texture->name);
125
126    switch (bitmap.getConfig()) {
127        case SkBitmap::kA8_Config:
128            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
129                    GL_UNSIGNED_BYTE, p);
130            break;
131        case SkBitmap::kARGB_4444_Config:
132            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
133                    GL_UNSIGNED_SHORT_4_4_4_4, p);
134            break;
135        case SkBitmap::kARGB_8888_Config:
136            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
137                    GL_UNSIGNED_BYTE, p);
138            break;
139        case SkBitmap::kRGB_565_Config:
140            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
141                    GL_UNSIGNED_SHORT_5_6_5, p);
142            break;
143        default:
144            break;
145    }
146
147    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
148    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
149    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
150    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
151    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
152    return NO_ERROR;
153}
154
155status_t BootAnimation::initTexture(void* buffer, size_t len)
156{
157    //StopWatch watch("blah");
158
159    SkBitmap bitmap;
160    SkMemoryStream  stream(buffer, len);
161    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
162    codec->setDitherImage(false);
163    if (codec) {
164        codec->decode(&stream, &bitmap,
165                SkBitmap::kARGB_8888_Config,
166                SkImageDecoder::kDecodePixels_Mode);
167        delete codec;
168    }
169
170    // ensure we can call getPixels(). No need to call unlock, since the
171    // bitmap will go out of scope when we return from this method.
172    bitmap.lockPixels();
173
174    const int w = bitmap.width();
175    const int h = bitmap.height();
176    const void* p = bitmap.getPixels();
177
178    GLint crop[4] = { 0, h, w, -h };
179    int tw = 1 << (31 - __builtin_clz(w));
180    int th = 1 << (31 - __builtin_clz(h));
181    if (tw < w) tw <<= 1;
182    if (th < h) th <<= 1;
183
184    switch (bitmap.getConfig()) {
185        case SkBitmap::kARGB_8888_Config:
186            if (tw != w || th != h) {
187                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
188                        GL_UNSIGNED_BYTE, 0);
189                glTexSubImage2D(GL_TEXTURE_2D, 0,
190                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
191            } else {
192                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
193                        GL_UNSIGNED_BYTE, p);
194            }
195            break;
196
197        case SkBitmap::kRGB_565_Config:
198            if (tw != w || th != h) {
199                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
200                        GL_UNSIGNED_SHORT_5_6_5, 0);
201                glTexSubImage2D(GL_TEXTURE_2D, 0,
202                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
203            } else {
204                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
205                        GL_UNSIGNED_SHORT_5_6_5, p);
206            }
207            break;
208        default:
209            break;
210    }
211
212    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
213
214    return NO_ERROR;
215}
216
217status_t BootAnimation::readyToRun() {
218    mAssets.addDefaultAssets();
219
220    sp<IBinder> dtoken(SurfaceComposerClient::getBuiltInDisplay(
221            ISurfaceComposer::eDisplayIdMain));
222    DisplayInfo dinfo;
223    status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &dinfo);
224    if (status)
225        return -1;
226
227    // create the native surface
228    sp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"),
229            dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
230
231    SurfaceComposerClient::openGlobalTransaction();
232    control->setLayer(0x40000000);
233    SurfaceComposerClient::closeGlobalTransaction();
234
235    sp<Surface> s = control->getSurface();
236
237    // initialize opengl and egl
238    const EGLint attribs[] = {
239            EGL_RED_SIZE,   8,
240            EGL_GREEN_SIZE, 8,
241            EGL_BLUE_SIZE,  8,
242            EGL_DEPTH_SIZE, 0,
243            EGL_NONE
244    };
245    EGLint w, h, dummy;
246    EGLint numConfigs;
247    EGLConfig config;
248    EGLSurface surface;
249    EGLContext context;
250
251    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
252
253    eglInitialize(display, 0, 0);
254    eglChooseConfig(display, attribs, &config, 1, &numConfigs);
255    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
256    context = eglCreateContext(display, config, NULL, NULL);
257    eglQuerySurface(display, surface, EGL_WIDTH, &w);
258    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
259
260    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
261        return NO_INIT;
262
263    mDisplay = display;
264    mContext = context;
265    mSurface = surface;
266    mWidth = w;
267    mHeight = h;
268    mFlingerSurfaceControl = control;
269    mFlingerSurface = s;
270
271    mAndroidAnimation = true;
272
273    // If the device has encryption turned on or is in process
274    // of being encrypted we show the encrypted boot animation.
275    char decrypt[PROPERTY_VALUE_MAX];
276    property_get("vold.decrypt", decrypt, "");
277
278    bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
279
280    if ((encryptedAnimation &&
281            (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0) &&
282            (mZip.open(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE) == NO_ERROR)) ||
283
284            ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
285            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR)) ||
286
287            ((access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
288            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))) {
289        mAndroidAnimation = false;
290    }
291
292    return NO_ERROR;
293}
294
295bool BootAnimation::threadLoop()
296{
297    bool r;
298    if (mAndroidAnimation) {
299        r = android();
300    } else {
301        r = movie();
302    }
303
304    // No need to force exit anymore
305    property_set(EXIT_PROP_NAME, "0");
306
307    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
308    eglDestroyContext(mDisplay, mContext);
309    eglDestroySurface(mDisplay, mSurface);
310    mFlingerSurface.clear();
311    mFlingerSurfaceControl.clear();
312    eglTerminate(mDisplay);
313    IPCThreadState::self()->stopProcess();
314    return r;
315}
316
317bool BootAnimation::android()
318{
319    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
320    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
321
322    // clear screen
323    glShadeModel(GL_FLAT);
324    glDisable(GL_DITHER);
325    glDisable(GL_SCISSOR_TEST);
326    glClearColor(0,0,0,1);
327    glClear(GL_COLOR_BUFFER_BIT);
328    eglSwapBuffers(mDisplay, mSurface);
329
330    glEnable(GL_TEXTURE_2D);
331    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
332
333    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
334    const GLint yc = (mHeight - mAndroid[0].h) / 2;
335    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
336
337    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
338            updateRect.height());
339
340    // Blend state
341    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
342    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
343
344    const nsecs_t startTime = systemTime();
345    do {
346        nsecs_t now = systemTime();
347        double time = now - startTime;
348        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
349        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
350        GLint x = xc - offset;
351
352        glDisable(GL_SCISSOR_TEST);
353        glClear(GL_COLOR_BUFFER_BIT);
354
355        glEnable(GL_SCISSOR_TEST);
356        glDisable(GL_BLEND);
357        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
358        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
359        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
360
361        glEnable(GL_BLEND);
362        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
363        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
364
365        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
366        if (res == EGL_FALSE)
367            break;
368
369        // 12fps: don't animate too fast to preserve CPU
370        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
371        if (sleepTime > 0)
372            usleep(sleepTime);
373
374        checkExit();
375    } while (!exitPending());
376
377    glDeleteTextures(1, &mAndroid[0].name);
378    glDeleteTextures(1, &mAndroid[1].name);
379    return false;
380}
381
382
383void BootAnimation::checkExit() {
384    // Allow surface flinger to gracefully request shutdown
385    char value[PROPERTY_VALUE_MAX];
386    property_get(EXIT_PROP_NAME, value, "0");
387    int exitnow = atoi(value);
388    if (exitnow) {
389        requestExit();
390    }
391}
392
393bool BootAnimation::movie()
394{
395    ZipFileRO& zip(mZip);
396
397    size_t numEntries = zip.getNumEntries();
398    ZipEntryRO desc = zip.findEntryByName("desc.txt");
399    FileMap* descMap = zip.createEntryFileMap(desc);
400    ALOGE_IF(!descMap, "descMap is null");
401    if (!descMap) {
402        return false;
403    }
404
405    String8 desString((char const*)descMap->getDataPtr(),
406            descMap->getDataLength());
407    char const* s = desString.string();
408
409    Animation animation;
410
411    // Parse the description file
412    for (;;) {
413        const char* endl = strstr(s, "\n");
414        if (!endl) break;
415        String8 line(s, endl - s);
416        const char* l = line.string();
417        int fps, width, height, count, pause;
418        char path[256];
419        char pathType;
420        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
421            //LOGD("> w=%d, h=%d, fps=%d", width, height, fps);
422            animation.width = width;
423            animation.height = height;
424            animation.fps = fps;
425        }
426        else if (sscanf(l, " %c %d %d %s", &pathType, &count, &pause, path) == 4) {
427            //LOGD("> type=%c, count=%d, pause=%d, path=%s", pathType, count, pause, path);
428            Animation::Part part;
429            part.playUntilComplete = pathType == 'c';
430            part.count = count;
431            part.pause = pause;
432            part.path = path;
433            animation.parts.add(part);
434        }
435
436        s = ++endl;
437    }
438
439    // read all the data structures
440    const size_t pcount = animation.parts.size();
441    for (size_t i=0 ; i<numEntries ; i++) {
442        char name[256];
443        ZipEntryRO entry = zip.findEntryByIndex(i);
444        if (zip.getEntryFileName(entry, name, 256) == 0) {
445            const String8 entryName(name);
446            const String8 path(entryName.getPathDir());
447            const String8 leaf(entryName.getPathLeaf());
448            if (leaf.size() > 0) {
449                for (int j=0 ; j<pcount ; j++) {
450                    if (path == animation.parts[j].path) {
451                        int method;
452                        // supports only stored png files
453                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
454                            if (method == ZipFileRO::kCompressStored) {
455                                FileMap* map = zip.createEntryFileMap(entry);
456                                if (map) {
457                                    Animation::Frame frame;
458                                    frame.name = leaf;
459                                    frame.map = map;
460                                    Animation::Part& part(animation.parts.editItemAt(j));
461                                    part.frames.add(frame);
462                                }
463                            }
464                        }
465                    }
466                }
467            }
468        }
469    }
470
471    // clear screen
472    glShadeModel(GL_FLAT);
473    glDisable(GL_DITHER);
474    glDisable(GL_SCISSOR_TEST);
475    glDisable(GL_BLEND);
476    glClearColor(0,0,0,1);
477    glClear(GL_COLOR_BUFFER_BIT);
478
479    eglSwapBuffers(mDisplay, mSurface);
480
481    glBindTexture(GL_TEXTURE_2D, 0);
482    glEnable(GL_TEXTURE_2D);
483    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
484    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
485    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
486    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
487    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
488
489    const int xc = (mWidth - animation.width) / 2;
490    const int yc = ((mHeight - animation.height) / 2);
491    nsecs_t lastFrame = systemTime();
492    nsecs_t frameDuration = s2ns(1) / animation.fps;
493
494    Region clearReg(Rect(mWidth, mHeight));
495    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
496
497    for (int i=0 ; i<pcount ; i++) {
498        const Animation::Part& part(animation.parts[i]);
499        const size_t fcount = part.frames.size();
500        glBindTexture(GL_TEXTURE_2D, 0);
501
502        for (int r=0 ; !part.count || r<part.count ; r++) {
503            // Exit any non playuntil complete parts immediately
504            if(exitPending() && !part.playUntilComplete)
505                break;
506
507            for (int j=0 ; j<fcount && (!exitPending() || part.playUntilComplete) ; j++) {
508                const Animation::Frame& frame(part.frames[j]);
509                nsecs_t lastFrame = systemTime();
510
511                if (r > 0) {
512                    glBindTexture(GL_TEXTURE_2D, frame.tid);
513                } else {
514                    if (part.count != 1) {
515                        glGenTextures(1, &frame.tid);
516                        glBindTexture(GL_TEXTURE_2D, frame.tid);
517                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
518                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
519                    }
520                    initTexture(
521                            frame.map->getDataPtr(),
522                            frame.map->getDataLength());
523                }
524
525                if (!clearReg.isEmpty()) {
526                    Region::const_iterator head(clearReg.begin());
527                    Region::const_iterator tail(clearReg.end());
528                    glEnable(GL_SCISSOR_TEST);
529                    while (head != tail) {
530                        const Rect& r(*head++);
531                        glScissor(r.left, mHeight - r.bottom,
532                                r.width(), r.height());
533                        glClear(GL_COLOR_BUFFER_BIT);
534                    }
535                    glDisable(GL_SCISSOR_TEST);
536                }
537                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
538                eglSwapBuffers(mDisplay, mSurface);
539
540                nsecs_t now = systemTime();
541                nsecs_t delay = frameDuration - (now - lastFrame);
542                //ALOGD("%lld, %lld", ns2ms(now - lastFrame), ns2ms(delay));
543                lastFrame = now;
544
545                if (delay > 0) {
546                    struct timespec spec;
547                    spec.tv_sec  = (now + delay) / 1000000000;
548                    spec.tv_nsec = (now + delay) % 1000000000;
549                    int err;
550                    do {
551                        err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
552                    } while (err<0 && errno == EINTR);
553                }
554
555                checkExit();
556            }
557
558            usleep(part.pause * ns2us(frameDuration));
559
560            // For infinite parts, we've now played them at least once, so perhaps exit
561            if(exitPending() && !part.count)
562                break;
563        }
564
565        // free the textures for this part
566        if (part.count != 1) {
567            for (int j=0 ; j<fcount ; j++) {
568                const Animation::Frame& frame(part.frames[j]);
569                glDeleteTextures(1, &frame.tid);
570            }
571        }
572    }
573
574    return false;
575}
576
577// ---------------------------------------------------------------------------
578
579}
580; // namespace android
581