BootAnimation.cpp revision 439863f3b3e725b5de1cba4940a21900369961c0 
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 <binder/IPCThreadState.h>
29#include <utils/threads.h>
30#include <utils/Atomic.h>
31#include <utils/Errors.h>
32#include <utils/Log.h>
33#include <utils/AssetManager.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#include <ui/EGLUtils.h>
41
42#include <surfaceflinger/ISurfaceComposer.h>
43#include <surfaceflinger/ISurfaceComposerClient.h>
44
45#include <core/SkBitmap.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
58namespace android {
59
60// ---------------------------------------------------------------------------
61
62BootAnimation::BootAnimation() : Thread(false)
63{
64    mSession = new SurfaceComposerClient();
65}
66
67BootAnimation::~BootAnimation() {
68}
69
70void BootAnimation::onFirstRef() {
71    status_t err = mSession->linkToComposerDeath(this);
72    LOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
73    if (err == NO_ERROR) {
74        run("BootAnimation", PRIORITY_DISPLAY);
75    }
76}
77
78sp<SurfaceComposerClient> BootAnimation::session() const {
79    return mSession;
80}
81
82
83void BootAnimation::binderDied(const wp<IBinder>& who)
84{
85    // woah, surfaceflinger died!
86    LOGD("SurfaceFlinger died, exiting...");
87
88    // calling requestExit() is not enough here because the Surface code
89    // might be blocked on a condition variable that will never be updated.
90    kill( getpid(), SIGKILL );
91    requestExit();
92}
93
94status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
95        const char* name) {
96    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
97    if (!asset)
98        return NO_INIT;
99    SkBitmap bitmap;
100    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
101            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
102    asset->close();
103    delete asset;
104
105    // ensure we can call getPixels(). No need to call unlock, since the
106    // bitmap will go out of scope when we return from this method.
107    bitmap.lockPixels();
108
109    const int w = bitmap.width();
110    const int h = bitmap.height();
111    const void* p = bitmap.getPixels();
112
113    GLint crop[4] = { 0, h, w, -h };
114    texture->w = w;
115    texture->h = h;
116
117    glGenTextures(1, &texture->name);
118    glBindTexture(GL_TEXTURE_2D, texture->name);
119
120    switch (bitmap.getConfig()) {
121        case SkBitmap::kA8_Config:
122            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
123                    GL_UNSIGNED_BYTE, p);
124            break;
125        case SkBitmap::kARGB_4444_Config:
126            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
127                    GL_UNSIGNED_SHORT_4_4_4_4, p);
128            break;
129        case SkBitmap::kARGB_8888_Config:
130            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
131                    GL_UNSIGNED_BYTE, p);
132            break;
133        case SkBitmap::kRGB_565_Config:
134            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
135                    GL_UNSIGNED_SHORT_5_6_5, p);
136            break;
137        default:
138            break;
139    }
140
141    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
142    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
143    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
144    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
145    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
146    return NO_ERROR;
147}
148
149status_t BootAnimation::initTexture(void* buffer, size_t len)
150{
151    //StopWatch watch("blah");
152
153    SkBitmap bitmap;
154    SkImageDecoder::DecodeMemory(buffer, len,
155            &bitmap, SkBitmap::kRGB_565_Config,
156            SkImageDecoder::kDecodePixels_Mode);
157
158    // ensure we can call getPixels(). No need to call unlock, since the
159    // bitmap will go out of scope when we return from this method.
160    bitmap.lockPixels();
161
162    const int w = bitmap.width();
163    const int h = bitmap.height();
164    const void* p = bitmap.getPixels();
165
166    GLint crop[4] = { 0, h, w, -h };
167    int tw = 1 << (31 - __builtin_clz(w));
168    int th = 1 << (31 - __builtin_clz(h));
169    if (tw < w) tw <<= 1;
170    if (th < h) th <<= 1;
171
172    switch (bitmap.getConfig()) {
173        case SkBitmap::kARGB_8888_Config:
174            if (tw != w || th != h) {
175                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
176                        GL_UNSIGNED_BYTE, 0);
177                glTexSubImage2D(GL_TEXTURE_2D, 0,
178                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
179            } else {
180                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
181                        GL_UNSIGNED_BYTE, p);
182            }
183            break;
184
185        case SkBitmap::kRGB_565_Config:
186            if (tw != w || th != h) {
187                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
188                        GL_UNSIGNED_SHORT_5_6_5, 0);
189                glTexSubImage2D(GL_TEXTURE_2D, 0,
190                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
191            } else {
192                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
193                        GL_UNSIGNED_SHORT_5_6_5, p);
194            }
195            break;
196        default:
197            break;
198    }
199
200    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
201
202    return NO_ERROR;
203}
204
205status_t BootAnimation::readyToRun() {
206    mAssets.addDefaultAssets();
207
208    DisplayInfo dinfo;
209    status_t status = session()->getDisplayInfo(0, &dinfo);
210    if (status)
211        return -1;
212
213    // create the native surface
214    sp<SurfaceControl> control = session()->createSurface(
215            0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
216
217    SurfaceComposerClient::openGlobalTransaction();
218    control->setLayer(0x40000000);
219    SurfaceComposerClient::closeGlobalTransaction();
220
221    sp<Surface> s = control->getSurface();
222
223    // initialize opengl and egl
224    const EGLint attribs[] = {
225            EGL_DEPTH_SIZE, 0,
226            EGL_NONE
227    };
228    EGLint w, h, dummy;
229    EGLint numConfigs;
230    EGLConfig config;
231    EGLSurface surface;
232    EGLContext context;
233
234    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
235
236    eglInitialize(display, 0, 0);
237    EGLUtils::selectConfigForNativeWindow(display, attribs, s.get(), &config);
238    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
239    context = eglCreateContext(display, config, NULL, NULL);
240    eglQuerySurface(display, surface, EGL_WIDTH, &w);
241    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
242
243    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
244        return NO_INIT;
245
246    mDisplay = display;
247    mContext = context;
248    mSurface = surface;
249    mWidth = w;
250    mHeight = h;
251    mFlingerSurfaceControl = control;
252    mFlingerSurface = s;
253
254    mAndroidAnimation = true;
255
256    // If the device has encryption turned on or is in process
257    // of being encrypted we show the encrypted boot animation.
258    char decrypt[PROPERTY_VALUE_MAX];
259    property_get("vold.decrypt", decrypt, "");
260
261    bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
262
263    if ((encryptedAnimation &&
264            (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0) &&
265            (mZip.open(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE) == NO_ERROR)) ||
266
267            ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
268            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR)) ||
269
270            ((access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
271            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))) {
272        mAndroidAnimation = false;
273    }
274
275    return NO_ERROR;
276}
277
278bool BootAnimation::threadLoop()
279{
280    bool r;
281    if (mAndroidAnimation) {
282        r = android();
283    } else {
284        r = movie();
285    }
286
287    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
288    eglDestroyContext(mDisplay, mContext);
289    eglDestroySurface(mDisplay, mSurface);
290    mFlingerSurface.clear();
291    mFlingerSurfaceControl.clear();
292    eglTerminate(mDisplay);
293    IPCThreadState::self()->stopProcess();
294    return r;
295}
296
297bool BootAnimation::android()
298{
299    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
300    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
301
302    // clear screen
303    glShadeModel(GL_FLAT);
304    glDisable(GL_DITHER);
305    glDisable(GL_SCISSOR_TEST);
306    glClearColor(0,0,0,1);
307    glClear(GL_COLOR_BUFFER_BIT);
308    eglSwapBuffers(mDisplay, mSurface);
309
310    glEnable(GL_TEXTURE_2D);
311    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
312
313    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
314    const GLint yc = (mHeight - mAndroid[0].h) / 2;
315    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
316
317    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
318            updateRect.height());
319
320    // Blend state
321    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
322    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
323
324    const nsecs_t startTime = systemTime();
325    do {
326        nsecs_t now = systemTime();
327        double time = now - startTime;
328        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
329        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
330        GLint x = xc - offset;
331
332        glDisable(GL_SCISSOR_TEST);
333        glClear(GL_COLOR_BUFFER_BIT);
334
335        glEnable(GL_SCISSOR_TEST);
336        glDisable(GL_BLEND);
337        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
338        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
339        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
340
341        glEnable(GL_BLEND);
342        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
343        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
344
345        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
346        if (res == EGL_FALSE)
347            break;
348
349        // 12fps: don't animate too fast to preserve CPU
350        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
351        if (sleepTime > 0)
352            usleep(sleepTime);
353    } while (!exitPending());
354
355    glDeleteTextures(1, &mAndroid[0].name);
356    glDeleteTextures(1, &mAndroid[1].name);
357    return false;
358}
359
360
361bool BootAnimation::movie()
362{
363    ZipFileRO& zip(mZip);
364
365    size_t numEntries = zip.getNumEntries();
366    ZipEntryRO desc = zip.findEntryByName("desc.txt");
367    FileMap* descMap = zip.createEntryFileMap(desc);
368    LOGE_IF(!descMap, "descMap is null");
369    if (!descMap) {
370        return false;
371    }
372
373    String8 desString((char const*)descMap->getDataPtr(),
374            descMap->getDataLength());
375    char const* s = desString.string();
376
377    Animation animation;
378
379    // Parse the description file
380    for (;;) {
381        const char* endl = strstr(s, "\n");
382        if (!endl) break;
383        String8 line(s, endl - s);
384        const char* l = line.string();
385        int fps, width, height, count, pause;
386        char path[256];
387        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
388            //LOGD("> w=%d, h=%d, fps=%d", fps, width, height);
389            animation.width = width;
390            animation.height = height;
391            animation.fps = fps;
392        }
393        if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
394            //LOGD("> count=%d, pause=%d, path=%s", count, pause, path);
395            Animation::Part part;
396            part.count = count;
397            part.pause = pause;
398            part.path = path;
399            animation.parts.add(part);
400        }
401        s = ++endl;
402    }
403
404    // read all the data structures
405    const size_t pcount = animation.parts.size();
406    for (size_t i=0 ; i<numEntries ; i++) {
407        char name[256];
408        ZipEntryRO entry = zip.findEntryByIndex(i);
409        if (zip.getEntryFileName(entry, name, 256) == 0) {
410            const String8 entryName(name);
411            const String8 path(entryName.getPathDir());
412            const String8 leaf(entryName.getPathLeaf());
413            if (leaf.size() > 0) {
414                for (int j=0 ; j<pcount ; j++) {
415                    if (path == animation.parts[j].path) {
416                        int method;
417                        // supports only stored png files
418                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
419                            if (method == ZipFileRO::kCompressStored) {
420                                FileMap* map = zip.createEntryFileMap(entry);
421                                if (map) {
422                                    Animation::Frame frame;
423                                    frame.name = leaf;
424                                    frame.map = map;
425                                    Animation::Part& part(animation.parts.editItemAt(j));
426                                    part.frames.add(frame);
427                                }
428                            }
429                        }
430                    }
431                }
432            }
433        }
434    }
435
436    // clear screen
437    glShadeModel(GL_FLAT);
438    glDisable(GL_DITHER);
439    glDisable(GL_SCISSOR_TEST);
440    glDisable(GL_BLEND);
441    glClearColor(0,0,0,1);
442    glClear(GL_COLOR_BUFFER_BIT);
443
444    eglSwapBuffers(mDisplay, mSurface);
445
446    glBindTexture(GL_TEXTURE_2D, 0);
447    glEnable(GL_TEXTURE_2D);
448    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
449    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
450    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
451    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
452    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
453
454    const int xc = (mWidth - animation.width) / 2;
455    const int yc = ((mHeight - animation.height) / 2);
456    nsecs_t lastFrame = systemTime();
457    nsecs_t frameDuration = s2ns(1) / animation.fps;
458
459    Region clearReg(Rect(mWidth, mHeight));
460    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
461
462    for (int i=0 ; i<pcount && !exitPending() ; i++) {
463        const Animation::Part& part(animation.parts[i]);
464        const size_t fcount = part.frames.size();
465        glBindTexture(GL_TEXTURE_2D, 0);
466
467        for (int r=0 ; !part.count || r<part.count ; r++) {
468            for (int j=0 ; j<fcount && !exitPending(); j++) {
469                const Animation::Frame& frame(part.frames[j]);
470
471                if (r > 0) {
472                    glBindTexture(GL_TEXTURE_2D, frame.tid);
473                } else {
474                    if (part.count != 1) {
475                        glGenTextures(1, &frame.tid);
476                        glBindTexture(GL_TEXTURE_2D, frame.tid);
477                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
478                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
479                    }
480                    initTexture(
481                            frame.map->getDataPtr(),
482                            frame.map->getDataLength());
483                }
484
485                if (!clearReg.isEmpty()) {
486                    Region::const_iterator head(clearReg.begin());
487                    Region::const_iterator tail(clearReg.end());
488                    glEnable(GL_SCISSOR_TEST);
489                    while (head != tail) {
490                        const Rect& r(*head++);
491                        glScissor(r.left, mHeight - r.bottom,
492                                r.width(), r.height());
493                        glClear(GL_COLOR_BUFFER_BIT);
494                    }
495                    glDisable(GL_SCISSOR_TEST);
496                }
497                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
498                eglSwapBuffers(mDisplay, mSurface);
499
500                nsecs_t now = systemTime();
501                nsecs_t delay = frameDuration - (now - lastFrame);
502                lastFrame = now;
503                long wait = ns2us(frameDuration);
504                if (wait > 0)
505                    usleep(wait);
506            }
507            usleep(part.pause * ns2us(frameDuration));
508        }
509
510        // free the textures for this part
511        if (part.count != 1) {
512            for (int j=0 ; j<fcount ; j++) {
513                const Animation::Frame& frame(part.frames[j]);
514                glDeleteTextures(1, &frame.tid);
515            }
516        }
517    }
518
519    return false;
520}
521
522// ---------------------------------------------------------------------------
523
524}
525; // namespace android
526