BootAnimation.cpp revision db7dd2af93ae96e5749cfbe978c2695049d9d782 
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
58extern "C" int clock_nanosleep(clockid_t clock_id, int flags,
59                           const struct timespec *request,
60                           struct timespec *remain);
61
62namespace android {
63
64// ---------------------------------------------------------------------------
65
66BootAnimation::BootAnimation() : Thread(false)
67{
68    mSession = new SurfaceComposerClient();
69}
70
71BootAnimation::~BootAnimation() {
72}
73
74void BootAnimation::onFirstRef() {
75    status_t err = mSession->linkToComposerDeath(this);
76    ALOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
77    if (err == NO_ERROR) {
78        run("BootAnimation", PRIORITY_DISPLAY);
79    }
80}
81
82sp<SurfaceComposerClient> BootAnimation::session() const {
83    return mSession;
84}
85
86
87void BootAnimation::binderDied(const wp<IBinder>& who)
88{
89    // woah, surfaceflinger died!
90    ALOGD("SurfaceFlinger died, exiting...");
91
92    // calling requestExit() is not enough here because the Surface code
93    // might be blocked on a condition variable that will never be updated.
94    kill( getpid(), SIGKILL );
95    requestExit();
96}
97
98status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
99        const char* name) {
100    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
101    if (!asset)
102        return NO_INIT;
103    SkBitmap bitmap;
104    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
105            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
106    asset->close();
107    delete asset;
108
109    // ensure we can call getPixels(). No need to call unlock, since the
110    // bitmap will go out of scope when we return from this method.
111    bitmap.lockPixels();
112
113    const int w = bitmap.width();
114    const int h = bitmap.height();
115    const void* p = bitmap.getPixels();
116
117    GLint crop[4] = { 0, h, w, -h };
118    texture->w = w;
119    texture->h = h;
120
121    glGenTextures(1, &texture->name);
122    glBindTexture(GL_TEXTURE_2D, texture->name);
123
124    switch (bitmap.getConfig()) {
125        case SkBitmap::kA8_Config:
126            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
127                    GL_UNSIGNED_BYTE, p);
128            break;
129        case SkBitmap::kARGB_4444_Config:
130            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
131                    GL_UNSIGNED_SHORT_4_4_4_4, p);
132            break;
133        case SkBitmap::kARGB_8888_Config:
134            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
135                    GL_UNSIGNED_BYTE, p);
136            break;
137        case SkBitmap::kRGB_565_Config:
138            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
139                    GL_UNSIGNED_SHORT_5_6_5, p);
140            break;
141        default:
142            break;
143    }
144
145    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
146    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
147    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
148    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
149    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
150    return NO_ERROR;
151}
152
153status_t BootAnimation::initTexture(void* buffer, size_t len)
154{
155    //StopWatch watch("blah");
156
157    SkBitmap bitmap;
158    SkMemoryStream  stream(buffer, len);
159    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
160    codec->setDitherImage(false);
161    if (codec) {
162        codec->decode(&stream, &bitmap,
163                SkBitmap::kRGB_565_Config,
164                SkImageDecoder::kDecodePixels_Mode);
165        delete codec;
166    }
167
168    // ensure we can call getPixels(). No need to call unlock, since the
169    // bitmap will go out of scope when we return from this method.
170    bitmap.lockPixels();
171
172    const int w = bitmap.width();
173    const int h = bitmap.height();
174    const void* p = bitmap.getPixels();
175
176    GLint crop[4] = { 0, h, w, -h };
177    int tw = 1 << (31 - __builtin_clz(w));
178    int th = 1 << (31 - __builtin_clz(h));
179    if (tw < w) tw <<= 1;
180    if (th < h) th <<= 1;
181
182    switch (bitmap.getConfig()) {
183        case SkBitmap::kARGB_8888_Config:
184            if (tw != w || th != h) {
185                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
186                        GL_UNSIGNED_BYTE, 0);
187                glTexSubImage2D(GL_TEXTURE_2D, 0,
188                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
189            } else {
190                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
191                        GL_UNSIGNED_BYTE, p);
192            }
193            break;
194
195        case SkBitmap::kRGB_565_Config:
196            if (tw != w || th != h) {
197                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
198                        GL_UNSIGNED_SHORT_5_6_5, 0);
199                glTexSubImage2D(GL_TEXTURE_2D, 0,
200                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
201            } else {
202                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
203                        GL_UNSIGNED_SHORT_5_6_5, p);
204            }
205            break;
206        default:
207            break;
208    }
209
210    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
211
212    return NO_ERROR;
213}
214
215status_t BootAnimation::readyToRun() {
216    mAssets.addDefaultAssets();
217
218    DisplayInfo dinfo;
219    status_t status = session()->getDisplayInfo(0, &dinfo);
220    if (status)
221        return -1;
222
223    // create the native surface
224    sp<SurfaceControl> control = session()->createSurface(
225            0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
226
227    SurfaceComposerClient::openGlobalTransaction();
228    control->setLayer(0x40000000);
229    SurfaceComposerClient::closeGlobalTransaction();
230
231    sp<Surface> s = control->getSurface();
232
233    // initialize opengl and egl
234    const EGLint attribs[] = {
235            EGL_RED_SIZE,   8,
236            EGL_GREEN_SIZE, 8,
237            EGL_BLUE_SIZE,  8,
238            EGL_DEPTH_SIZE, 0,
239            EGL_NONE
240    };
241    EGLint w, h, dummy;
242    EGLint numConfigs;
243    EGLConfig config;
244    EGLSurface surface;
245    EGLContext context;
246
247    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
248
249    eglInitialize(display, 0, 0);
250    eglChooseConfig(display, attribs, &config, 1, &numConfigs);
251    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
252    context = eglCreateContext(display, config, NULL, NULL);
253    eglQuerySurface(display, surface, EGL_WIDTH, &w);
254    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
255
256    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
257        return NO_INIT;
258
259    mDisplay = display;
260    mContext = context;
261    mSurface = surface;
262    mWidth = w;
263    mHeight = h;
264    mFlingerSurfaceControl = control;
265    mFlingerSurface = s;
266
267    mAndroidAnimation = true;
268
269    // If the device has encryption turned on or is in process
270    // of being encrypted we show the encrypted boot animation.
271    char decrypt[PROPERTY_VALUE_MAX];
272    property_get("vold.decrypt", decrypt, "");
273
274    bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
275
276    if ((encryptedAnimation &&
277            (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0) &&
278            (mZip.open(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE) == NO_ERROR)) ||
279
280            ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
281            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR)) ||
282
283            ((access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
284            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))) {
285        mAndroidAnimation = false;
286    }
287
288    return NO_ERROR;
289}
290
291bool BootAnimation::threadLoop()
292{
293    bool r;
294    if (mAndroidAnimation) {
295        r = android();
296    } else {
297        r = movie();
298    }
299
300    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
301    eglDestroyContext(mDisplay, mContext);
302    eglDestroySurface(mDisplay, mSurface);
303    mFlingerSurface.clear();
304    mFlingerSurfaceControl.clear();
305    eglTerminate(mDisplay);
306    IPCThreadState::self()->stopProcess();
307    return r;
308}
309
310bool BootAnimation::android()
311{
312    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
313    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
314
315    // clear screen
316    glShadeModel(GL_FLAT);
317    glDisable(GL_DITHER);
318    glDisable(GL_SCISSOR_TEST);
319    glClearColor(0,0,0,1);
320    glClear(GL_COLOR_BUFFER_BIT);
321    eglSwapBuffers(mDisplay, mSurface);
322
323    glEnable(GL_TEXTURE_2D);
324    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
325
326    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
327    const GLint yc = (mHeight - mAndroid[0].h) / 2;
328    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
329
330    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
331            updateRect.height());
332
333    // Blend state
334    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
335    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
336
337    const nsecs_t startTime = systemTime();
338    do {
339        nsecs_t now = systemTime();
340        double time = now - startTime;
341        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
342        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
343        GLint x = xc - offset;
344
345        glDisable(GL_SCISSOR_TEST);
346        glClear(GL_COLOR_BUFFER_BIT);
347
348        glEnable(GL_SCISSOR_TEST);
349        glDisable(GL_BLEND);
350        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
351        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
352        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
353
354        glEnable(GL_BLEND);
355        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
356        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
357
358        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
359        if (res == EGL_FALSE)
360            break;
361
362        // 12fps: don't animate too fast to preserve CPU
363        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
364        if (sleepTime > 0)
365            usleep(sleepTime);
366    } while (!exitPending());
367
368    glDeleteTextures(1, &mAndroid[0].name);
369    glDeleteTextures(1, &mAndroid[1].name);
370    return false;
371}
372
373
374bool BootAnimation::movie()
375{
376    ZipFileRO& zip(mZip);
377
378    size_t numEntries = zip.getNumEntries();
379    ZipEntryRO desc = zip.findEntryByName("desc.txt");
380    FileMap* descMap = zip.createEntryFileMap(desc);
381    ALOGE_IF(!descMap, "descMap is null");
382    if (!descMap) {
383        return false;
384    }
385
386    String8 desString((char const*)descMap->getDataPtr(),
387            descMap->getDataLength());
388    char const* s = desString.string();
389
390    Animation animation;
391
392    // Parse the description file
393    for (;;) {
394        const char* endl = strstr(s, "\n");
395        if (!endl) break;
396        String8 line(s, endl - s);
397        const char* l = line.string();
398        int fps, width, height, count, pause;
399        char path[256];
400        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
401            //ALOGD("> w=%d, h=%d, fps=%d", fps, width, height);
402            animation.width = width;
403            animation.height = height;
404            animation.fps = fps;
405        }
406        if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
407            //ALOGD("> count=%d, pause=%d, path=%s", count, pause, path);
408            Animation::Part part;
409            part.count = count;
410            part.pause = pause;
411            part.path = path;
412            animation.parts.add(part);
413        }
414        s = ++endl;
415    }
416
417    // read all the data structures
418    const size_t pcount = animation.parts.size();
419    for (size_t i=0 ; i<numEntries ; i++) {
420        char name[256];
421        ZipEntryRO entry = zip.findEntryByIndex(i);
422        if (zip.getEntryFileName(entry, name, 256) == 0) {
423            const String8 entryName(name);
424            const String8 path(entryName.getPathDir());
425            const String8 leaf(entryName.getPathLeaf());
426            if (leaf.size() > 0) {
427                for (int j=0 ; j<pcount ; j++) {
428                    if (path == animation.parts[j].path) {
429                        int method;
430                        // supports only stored png files
431                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
432                            if (method == ZipFileRO::kCompressStored) {
433                                FileMap* map = zip.createEntryFileMap(entry);
434                                if (map) {
435                                    Animation::Frame frame;
436                                    frame.name = leaf;
437                                    frame.map = map;
438                                    Animation::Part& part(animation.parts.editItemAt(j));
439                                    part.frames.add(frame);
440                                }
441                            }
442                        }
443                    }
444                }
445            }
446        }
447    }
448
449    // clear screen
450    glShadeModel(GL_FLAT);
451    glDisable(GL_DITHER);
452    glDisable(GL_SCISSOR_TEST);
453    glDisable(GL_BLEND);
454    glClearColor(0,0,0,1);
455    glClear(GL_COLOR_BUFFER_BIT);
456
457    eglSwapBuffers(mDisplay, mSurface);
458
459    glBindTexture(GL_TEXTURE_2D, 0);
460    glEnable(GL_TEXTURE_2D);
461    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
462    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
463    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
464    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
465    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
466
467    const int xc = (mWidth - animation.width) / 2;
468    const int yc = ((mHeight - animation.height) / 2);
469    nsecs_t lastFrame = systemTime();
470    nsecs_t frameDuration = s2ns(1) / animation.fps;
471
472    Region clearReg(Rect(mWidth, mHeight));
473    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
474
475    for (int i=0 ; i<pcount && !exitPending() ; i++) {
476        const Animation::Part& part(animation.parts[i]);
477        const size_t fcount = part.frames.size();
478        glBindTexture(GL_TEXTURE_2D, 0);
479
480        for (int r=0 ; !part.count || r<part.count ; r++) {
481            for (int j=0 ; j<fcount && !exitPending(); j++) {
482                const Animation::Frame& frame(part.frames[j]);
483                nsecs_t lastFrame = systemTime();
484
485                if (r > 0) {
486                    glBindTexture(GL_TEXTURE_2D, frame.tid);
487                } else {
488                    if (part.count != 1) {
489                        glGenTextures(1, &frame.tid);
490                        glBindTexture(GL_TEXTURE_2D, frame.tid);
491                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
492                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
493                    }
494                    initTexture(
495                            frame.map->getDataPtr(),
496                            frame.map->getDataLength());
497                }
498
499                if (!clearReg.isEmpty()) {
500                    Region::const_iterator head(clearReg.begin());
501                    Region::const_iterator tail(clearReg.end());
502                    glEnable(GL_SCISSOR_TEST);
503                    while (head != tail) {
504                        const Rect& r(*head++);
505                        glScissor(r.left, mHeight - r.bottom,
506                                r.width(), r.height());
507                        glClear(GL_COLOR_BUFFER_BIT);
508                    }
509                    glDisable(GL_SCISSOR_TEST);
510                }
511                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
512                eglSwapBuffers(mDisplay, mSurface);
513
514                nsecs_t now = systemTime();
515                nsecs_t delay = frameDuration - (now - lastFrame);
516                //ALOGD("%lld, %lld", ns2ms(now - lastFrame), ns2ms(delay));
517                lastFrame = now;
518
519                if (delay > 0) {
520                    struct timespec spec;
521                    spec.tv_sec  = (now + delay) / 1000000000;
522                    spec.tv_nsec = (now + delay) % 1000000000;
523                    int err;
524                    do {
525                        err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
526                    } while (err<0 && errno == EINTR);
527                }
528            }
529            usleep(part.pause * ns2us(frameDuration));
530        }
531
532        // free the textures for this part
533        if (part.count != 1) {
534            for (int j=0 ; j<fcount ; j++) {
535                const Animation::Frame& frame(part.frames[j]);
536                glDeleteTextures(1, &frame.tid);
537            }
538        }
539    }
540
541    return false;
542}
543
544// ---------------------------------------------------------------------------
545
546}
547; // namespace android
548