BootAnimation.cpp revision 92c6d2fc50ec2a33a2a990fe66cd70090eb461ca 
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/Surface.h>
42#include <gui/SurfaceComposerClient.h>
43
44#include <core/SkBitmap.h>
45#include <core/SkStream.h>
46#include <images/SkImageDecoder.h>
47
48#include <GLES/gl.h>
49#include <GLES/glext.h>
50#include <EGL/eglext.h>
51
52#include "BootAnimation.h"
53
54#define USER_BOOTANIMATION_FILE "/data/local/bootanimation.zip"
55#define SYSTEM_BOOTANIMATION_FILE "/system/media/bootanimation.zip"
56#define SYSTEM_ENCRYPTED_BOOTANIMATION_FILE "/system/media/bootanimation-encrypted.zip"
57#define EXIT_PROP_NAME "service.bootanim.exit"
58
59extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
60                           const struct timespec *request,
61                           struct timespec *remain);
62
63namespace android {
64
65// ---------------------------------------------------------------------------
66
67BootAnimation::BootAnimation() : Thread(false)
68{
69    mSession = new SurfaceComposerClient();
70}
71
72BootAnimation::~BootAnimation() {
73}
74
75void BootAnimation::onFirstRef() {
76    status_t err = mSession->linkToComposerDeath(this);
77    ALOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
78    if (err == NO_ERROR) {
79        run("BootAnimation", PRIORITY_DISPLAY);
80    }
81}
82
83sp<SurfaceComposerClient> BootAnimation::session() const {
84    return mSession;
85}
86
87
88void BootAnimation::binderDied(const wp<IBinder>& who)
89{
90    // woah, surfaceflinger died!
91    ALOGD("SurfaceFlinger died, exiting...");
92
93    // calling requestExit() is not enough here because the Surface code
94    // might be blocked on a condition variable that will never be updated.
95    kill( getpid(), SIGKILL );
96    requestExit();
97}
98
99status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
100        const char* name) {
101    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
102    if (!asset)
103        return NO_INIT;
104    SkBitmap bitmap;
105    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
106            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
107    asset->close();
108    delete asset;
109
110    // ensure we can call getPixels(). No need to call unlock, since the
111    // bitmap will go out of scope when we return from this method.
112    bitmap.lockPixels();
113
114    const int w = bitmap.width();
115    const int h = bitmap.height();
116    const void* p = bitmap.getPixels();
117
118    GLint crop[4] = { 0, h, w, -h };
119    texture->w = w;
120    texture->h = h;
121
122    glGenTextures(1, &texture->name);
123    glBindTexture(GL_TEXTURE_2D, texture->name);
124
125    switch (bitmap.getConfig()) {
126        case SkBitmap::kA8_Config:
127            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
128                    GL_UNSIGNED_BYTE, p);
129            break;
130        case SkBitmap::kARGB_4444_Config:
131            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
132                    GL_UNSIGNED_SHORT_4_4_4_4, p);
133            break;
134        case SkBitmap::kARGB_8888_Config:
135            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
136                    GL_UNSIGNED_BYTE, p);
137            break;
138        case SkBitmap::kRGB_565_Config:
139            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
140                    GL_UNSIGNED_SHORT_5_6_5, p);
141            break;
142        default:
143            break;
144    }
145
146    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
147    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
148    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
149    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
150    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
151    return NO_ERROR;
152}
153
154status_t BootAnimation::initTexture(void* buffer, size_t len)
155{
156    //StopWatch watch("blah");
157
158    SkBitmap bitmap;
159    SkMemoryStream  stream(buffer, len);
160    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
161    codec->setDitherImage(false);
162    if (codec) {
163        codec->decode(&stream, &bitmap,
164                SkBitmap::kARGB_8888_Config,
165                SkImageDecoder::kDecodePixels_Mode);
166        delete codec;
167    }
168
169    // ensure we can call getPixels(). No need to call unlock, since the
170    // bitmap will go out of scope when we return from this method.
171    bitmap.lockPixels();
172
173    const int w = bitmap.width();
174    const int h = bitmap.height();
175    const void* p = bitmap.getPixels();
176
177    GLint crop[4] = { 0, h, w, -h };
178    int tw = 1 << (31 - __builtin_clz(w));
179    int th = 1 << (31 - __builtin_clz(h));
180    if (tw < w) tw <<= 1;
181    if (th < h) th <<= 1;
182
183    switch (bitmap.getConfig()) {
184        case SkBitmap::kARGB_8888_Config:
185            if (tw != w || th != h) {
186                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
187                        GL_UNSIGNED_BYTE, 0);
188                glTexSubImage2D(GL_TEXTURE_2D, 0,
189                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
190            } else {
191                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
192                        GL_UNSIGNED_BYTE, p);
193            }
194            break;
195
196        case SkBitmap::kRGB_565_Config:
197            if (tw != w || th != h) {
198                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
199                        GL_UNSIGNED_SHORT_5_6_5, 0);
200                glTexSubImage2D(GL_TEXTURE_2D, 0,
201                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
202            } else {
203                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
204                        GL_UNSIGNED_SHORT_5_6_5, p);
205            }
206            break;
207        default:
208            break;
209    }
210
211    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
212
213    return NO_ERROR;
214}
215
216status_t BootAnimation::readyToRun() {
217    mAssets.addDefaultAssets();
218
219    DisplayInfo dinfo;
220    status_t status = SurfaceComposerClient::getDisplayInfo(0, &dinfo);
221    if (status)
222        return -1;
223
224    // create the native surface
225    sp<SurfaceControl> control = session()->createSurface(
226            0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
227
228    SurfaceComposerClient::openGlobalTransaction();
229    control->setLayer(0x40000000);
230    SurfaceComposerClient::closeGlobalTransaction();
231
232    sp<Surface> s = control->getSurface();
233
234    // initialize opengl and egl
235    const EGLint attribs[] = {
236            EGL_RED_SIZE,   8,
237            EGL_GREEN_SIZE, 8,
238            EGL_BLUE_SIZE,  8,
239            EGL_DEPTH_SIZE, 0,
240            EGL_NONE
241    };
242    EGLint w, h, dummy;
243    EGLint numConfigs;
244    EGLConfig config;
245    EGLSurface surface;
246    EGLContext context;
247
248    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
249
250    eglInitialize(display, 0, 0);
251    eglChooseConfig(display, attribs, &config, 1, &numConfigs);
252    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
253    context = eglCreateContext(display, config, NULL, NULL);
254    eglQuerySurface(display, surface, EGL_WIDTH, &w);
255    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
256
257    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
258        return NO_INIT;
259
260    mDisplay = display;
261    mContext = context;
262    mSurface = surface;
263    mWidth = w;
264    mHeight = h;
265    mFlingerSurfaceControl = control;
266    mFlingerSurface = s;
267
268    mAndroidAnimation = true;
269
270    // If the device has encryption turned on or is in process
271    // of being encrypted we show the encrypted boot animation.
272    char decrypt[PROPERTY_VALUE_MAX];
273    property_get("vold.decrypt", decrypt, "");
274
275    bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
276
277    if ((encryptedAnimation &&
278            (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0) &&
279            (mZip.open(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE) == NO_ERROR)) ||
280
281            ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
282            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR)) ||
283
284            ((access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
285            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))) {
286        mAndroidAnimation = false;
287    }
288
289    return NO_ERROR;
290}
291
292bool BootAnimation::threadLoop()
293{
294    bool r;
295    if (mAndroidAnimation) {
296        r = android();
297    } else {
298        r = movie();
299    }
300
301    // No need to force exit anymore
302    property_set(EXIT_PROP_NAME, "0");
303
304    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
305    eglDestroyContext(mDisplay, mContext);
306    eglDestroySurface(mDisplay, mSurface);
307    mFlingerSurface.clear();
308    mFlingerSurfaceControl.clear();
309    eglTerminate(mDisplay);
310    IPCThreadState::self()->stopProcess();
311    return r;
312}
313
314bool BootAnimation::android()
315{
316    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
317    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
318
319    // clear screen
320    glShadeModel(GL_FLAT);
321    glDisable(GL_DITHER);
322    glDisable(GL_SCISSOR_TEST);
323    glClearColor(0,0,0,1);
324    glClear(GL_COLOR_BUFFER_BIT);
325    eglSwapBuffers(mDisplay, mSurface);
326
327    glEnable(GL_TEXTURE_2D);
328    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
329
330    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
331    const GLint yc = (mHeight - mAndroid[0].h) / 2;
332    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
333
334    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
335            updateRect.height());
336
337    // Blend state
338    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
339    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
340
341    const nsecs_t startTime = systemTime();
342    do {
343        nsecs_t now = systemTime();
344        double time = now - startTime;
345        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
346        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
347        GLint x = xc - offset;
348
349        glDisable(GL_SCISSOR_TEST);
350        glClear(GL_COLOR_BUFFER_BIT);
351
352        glEnable(GL_SCISSOR_TEST);
353        glDisable(GL_BLEND);
354        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
355        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
356        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
357
358        glEnable(GL_BLEND);
359        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
360        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
361
362        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
363        if (res == EGL_FALSE)
364            break;
365
366        // 12fps: don't animate too fast to preserve CPU
367        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
368        if (sleepTime > 0)
369            usleep(sleepTime);
370
371        checkExit();
372    } while (!exitPending());
373
374    glDeleteTextures(1, &mAndroid[0].name);
375    glDeleteTextures(1, &mAndroid[1].name);
376    return false;
377}
378
379
380void BootAnimation::checkExit() {
381    // Allow surface flinger to gracefully request shutdown
382    char value[PROPERTY_VALUE_MAX];
383    property_get(EXIT_PROP_NAME, value, "0");
384    int exitnow = atoi(value);
385    if (exitnow) {
386        requestExit();
387    }
388}
389
390bool BootAnimation::movie()
391{
392    ZipFileRO& zip(mZip);
393
394    size_t numEntries = zip.getNumEntries();
395    ZipEntryRO desc = zip.findEntryByName("desc.txt");
396    FileMap* descMap = zip.createEntryFileMap(desc);
397    ALOGE_IF(!descMap, "descMap is null");
398    if (!descMap) {
399        return false;
400    }
401
402    String8 desString((char const*)descMap->getDataPtr(),
403            descMap->getDataLength());
404    char const* s = desString.string();
405
406    Animation animation;
407
408    // Parse the description file
409    for (;;) {
410        const char* endl = strstr(s, "\n");
411        if (!endl) break;
412        String8 line(s, endl - s);
413        const char* l = line.string();
414        int fps, width, height, count, pause;
415        char path[256];
416        char pathType;
417        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
418            //LOGD("> w=%d, h=%d, fps=%d", width, height, fps);
419            animation.width = width;
420            animation.height = height;
421            animation.fps = fps;
422        }
423        else if (sscanf(l, " %c %d %d %s", &pathType, &count, &pause, path) == 4) {
424            //LOGD("> type=%c, count=%d, pause=%d, path=%s", pathType, count, pause, path);
425            Animation::Part part;
426            part.playUntilComplete = pathType == 'c';
427            part.count = count;
428            part.pause = pause;
429            part.path = path;
430            animation.parts.add(part);
431        }
432
433        s = ++endl;
434    }
435
436    // read all the data structures
437    const size_t pcount = animation.parts.size();
438    for (size_t i=0 ; i<numEntries ; i++) {
439        char name[256];
440        ZipEntryRO entry = zip.findEntryByIndex(i);
441        if (zip.getEntryFileName(entry, name, 256) == 0) {
442            const String8 entryName(name);
443            const String8 path(entryName.getPathDir());
444            const String8 leaf(entryName.getPathLeaf());
445            if (leaf.size() > 0) {
446                for (int j=0 ; j<pcount ; j++) {
447                    if (path == animation.parts[j].path) {
448                        int method;
449                        // supports only stored png files
450                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
451                            if (method == ZipFileRO::kCompressStored) {
452                                FileMap* map = zip.createEntryFileMap(entry);
453                                if (map) {
454                                    Animation::Frame frame;
455                                    frame.name = leaf;
456                                    frame.map = map;
457                                    Animation::Part& part(animation.parts.editItemAt(j));
458                                    part.frames.add(frame);
459                                }
460                            }
461                        }
462                    }
463                }
464            }
465        }
466    }
467
468    // clear screen
469    glShadeModel(GL_FLAT);
470    glDisable(GL_DITHER);
471    glDisable(GL_SCISSOR_TEST);
472    glDisable(GL_BLEND);
473    glClearColor(0,0,0,1);
474    glClear(GL_COLOR_BUFFER_BIT);
475
476    eglSwapBuffers(mDisplay, mSurface);
477
478    glBindTexture(GL_TEXTURE_2D, 0);
479    glEnable(GL_TEXTURE_2D);
480    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
481    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
482    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
483    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
484    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
485
486    const int xc = (mWidth - animation.width) / 2;
487    const int yc = ((mHeight - animation.height) / 2);
488    nsecs_t lastFrame = systemTime();
489    nsecs_t frameDuration = s2ns(1) / animation.fps;
490
491    Region clearReg(Rect(mWidth, mHeight));
492    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
493
494    for (int i=0 ; i<pcount ; i++) {
495        const Animation::Part& part(animation.parts[i]);
496        const size_t fcount = part.frames.size();
497        glBindTexture(GL_TEXTURE_2D, 0);
498
499        for (int r=0 ; !part.count || r<part.count ; r++) {
500            // Exit any non playuntil complete parts immediately
501            if(exitPending() && !part.playUntilComplete)
502                break;
503
504            for (int j=0 ; j<fcount && (!exitPending() || part.playUntilComplete) ; j++) {
505                const Animation::Frame& frame(part.frames[j]);
506                nsecs_t lastFrame = systemTime();
507
508                if (r > 0) {
509                    glBindTexture(GL_TEXTURE_2D, frame.tid);
510                } else {
511                    if (part.count != 1) {
512                        glGenTextures(1, &frame.tid);
513                        glBindTexture(GL_TEXTURE_2D, frame.tid);
514                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
515                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
516                    }
517                    initTexture(
518                            frame.map->getDataPtr(),
519                            frame.map->getDataLength());
520                }
521
522                if (!clearReg.isEmpty()) {
523                    Region::const_iterator head(clearReg.begin());
524                    Region::const_iterator tail(clearReg.end());
525                    glEnable(GL_SCISSOR_TEST);
526                    while (head != tail) {
527                        const Rect& r(*head++);
528                        glScissor(r.left, mHeight - r.bottom,
529                                r.width(), r.height());
530                        glClear(GL_COLOR_BUFFER_BIT);
531                    }
532                    glDisable(GL_SCISSOR_TEST);
533                }
534                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
535                eglSwapBuffers(mDisplay, mSurface);
536
537                nsecs_t now = systemTime();
538                nsecs_t delay = frameDuration - (now - lastFrame);
539                //ALOGD("%lld, %lld", ns2ms(now - lastFrame), ns2ms(delay));
540                lastFrame = now;
541
542                if (delay > 0) {
543                    struct timespec spec;
544                    spec.tv_sec  = (now + delay) / 1000000000;
545                    spec.tv_nsec = (now + delay) % 1000000000;
546                    int err;
547                    do {
548                        err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
549                    } while (err<0 && errno == EINTR);
550                }
551
552                checkExit();
553            }
554
555            usleep(part.pause * ns2us(frameDuration));
556
557            // For infinite parts, we've now played them at least once, so perhaps exit
558            if(exitPending() && !part.count)
559                break;
560        }
561
562        // free the textures for this part
563        if (part.count != 1) {
564            for (int j=0 ; j<fcount ; j++) {
565                const Animation::Frame& frame(part.frames[j]);
566                glDeleteTextures(1, &frame.tid);
567            }
568        }
569    }
570
571    return false;
572}
573
574// ---------------------------------------------------------------------------
575
576}
577; // namespace android
578