BootAnimation.cpp revision 3762c311729fe9f3af085c14c5c1fb471d994c03 
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
41#include <surfaceflinger/ISurfaceComposer.h>
42#include <surfaceflinger/ISurfaceComposerClient.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
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    ALOGE_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    ALOGD("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    SkMemoryStream  stream(buffer, len);
155    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
156    codec->setDitherImage(false);
157    if (codec) {
158        codec->decode(&stream, &bitmap,
159                SkBitmap::kRGB_565_Config,
160                SkImageDecoder::kDecodePixels_Mode);
161        delete codec;
162    }
163
164    // ensure we can call getPixels(). No need to call unlock, since the
165    // bitmap will go out of scope when we return from this method.
166    bitmap.lockPixels();
167
168    const int w = bitmap.width();
169    const int h = bitmap.height();
170    const void* p = bitmap.getPixels();
171
172    GLint crop[4] = { 0, h, w, -h };
173    int tw = 1 << (31 - __builtin_clz(w));
174    int th = 1 << (31 - __builtin_clz(h));
175    if (tw < w) tw <<= 1;
176    if (th < h) th <<= 1;
177
178    switch (bitmap.getConfig()) {
179        case SkBitmap::kARGB_8888_Config:
180            if (tw != w || th != h) {
181                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
182                        GL_UNSIGNED_BYTE, 0);
183                glTexSubImage2D(GL_TEXTURE_2D, 0,
184                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
185            } else {
186                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
187                        GL_UNSIGNED_BYTE, p);
188            }
189            break;
190
191        case SkBitmap::kRGB_565_Config:
192            if (tw != w || th != h) {
193                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
194                        GL_UNSIGNED_SHORT_5_6_5, 0);
195                glTexSubImage2D(GL_TEXTURE_2D, 0,
196                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
197            } else {
198                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
199                        GL_UNSIGNED_SHORT_5_6_5, p);
200            }
201            break;
202        default:
203            break;
204    }
205
206    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
207
208    return NO_ERROR;
209}
210
211status_t BootAnimation::readyToRun() {
212    mAssets.addDefaultAssets();
213
214    DisplayInfo dinfo;
215    status_t status = session()->getDisplayInfo(0, &dinfo);
216    if (status)
217        return -1;
218
219    // create the native surface
220    sp<SurfaceControl> control = session()->createSurface(
221            0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
222
223    SurfaceComposerClient::openGlobalTransaction();
224    control->setLayer(0x40000000);
225    SurfaceComposerClient::closeGlobalTransaction();
226
227    sp<Surface> s = control->getSurface();
228
229    // initialize opengl and egl
230    const EGLint attribs[] = {
231            EGL_RED_SIZE,   8,
232            EGL_GREEN_SIZE, 8,
233            EGL_BLUE_SIZE,  8,
234            EGL_DEPTH_SIZE, 0,
235            EGL_NONE
236    };
237    EGLint w, h, dummy;
238    EGLint numConfigs;
239    EGLConfig config;
240    EGLSurface surface;
241    EGLContext context;
242
243    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
244
245    eglInitialize(display, 0, 0);
246    eglChooseConfig(display, attribs, &config, 1, &numConfigs);
247    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
248    context = eglCreateContext(display, config, NULL, NULL);
249    eglQuerySurface(display, surface, EGL_WIDTH, &w);
250    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
251
252    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
253        return NO_INIT;
254
255    mDisplay = display;
256    mContext = context;
257    mSurface = surface;
258    mWidth = w;
259    mHeight = h;
260    mFlingerSurfaceControl = control;
261    mFlingerSurface = s;
262
263    mAndroidAnimation = true;
264
265    // If the device has encryption turned on or is in process
266    // of being encrypted we show the encrypted boot animation.
267    char decrypt[PROPERTY_VALUE_MAX];
268    property_get("vold.decrypt", decrypt, "");
269
270    bool encryptedAnimation = atoi(decrypt) != 0 || !strcmp("trigger_restart_min_framework", decrypt);
271
272    if ((encryptedAnimation &&
273            (access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0) &&
274            (mZip.open(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE) == NO_ERROR)) ||
275
276            ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
277            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR)) ||
278
279            ((access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
280            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))) {
281        mAndroidAnimation = false;
282    }
283
284    return NO_ERROR;
285}
286
287bool BootAnimation::threadLoop()
288{
289    bool r;
290    if (mAndroidAnimation) {
291        r = android();
292    } else {
293        r = movie();
294    }
295
296    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
297    eglDestroyContext(mDisplay, mContext);
298    eglDestroySurface(mDisplay, mSurface);
299    mFlingerSurface.clear();
300    mFlingerSurfaceControl.clear();
301    eglTerminate(mDisplay);
302    IPCThreadState::self()->stopProcess();
303    return r;
304}
305
306bool BootAnimation::android()
307{
308    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
309    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
310
311    // clear screen
312    glShadeModel(GL_FLAT);
313    glDisable(GL_DITHER);
314    glDisable(GL_SCISSOR_TEST);
315    glClearColor(0,0,0,1);
316    glClear(GL_COLOR_BUFFER_BIT);
317    eglSwapBuffers(mDisplay, mSurface);
318
319    glEnable(GL_TEXTURE_2D);
320    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
321
322    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
323    const GLint yc = (mHeight - mAndroid[0].h) / 2;
324    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
325
326    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
327            updateRect.height());
328
329    // Blend state
330    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
331    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
332
333    const nsecs_t startTime = systemTime();
334    do {
335        nsecs_t now = systemTime();
336        double time = now - startTime;
337        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
338        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
339        GLint x = xc - offset;
340
341        glDisable(GL_SCISSOR_TEST);
342        glClear(GL_COLOR_BUFFER_BIT);
343
344        glEnable(GL_SCISSOR_TEST);
345        glDisable(GL_BLEND);
346        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
347        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
348        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
349
350        glEnable(GL_BLEND);
351        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
352        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
353
354        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
355        if (res == EGL_FALSE)
356            break;
357
358        // 12fps: don't animate too fast to preserve CPU
359        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
360        if (sleepTime > 0)
361            usleep(sleepTime);
362    } while (!exitPending());
363
364    glDeleteTextures(1, &mAndroid[0].name);
365    glDeleteTextures(1, &mAndroid[1].name);
366    return false;
367}
368
369
370bool BootAnimation::movie()
371{
372    ZipFileRO& zip(mZip);
373
374    size_t numEntries = zip.getNumEntries();
375    ZipEntryRO desc = zip.findEntryByName("desc.txt");
376    FileMap* descMap = zip.createEntryFileMap(desc);
377    ALOGE_IF(!descMap, "descMap is null");
378    if (!descMap) {
379        return false;
380    }
381
382    String8 desString((char const*)descMap->getDataPtr(),
383            descMap->getDataLength());
384    char const* s = desString.string();
385
386    Animation animation;
387
388    // Parse the description file
389    for (;;) {
390        const char* endl = strstr(s, "\n");
391        if (!endl) break;
392        String8 line(s, endl - s);
393        const char* l = line.string();
394        int fps, width, height, count, pause;
395        char path[256];
396        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
397            //ALOGD("> w=%d, h=%d, fps=%d", fps, width, height);
398            animation.width = width;
399            animation.height = height;
400            animation.fps = fps;
401        }
402        if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
403            //ALOGD("> count=%d, pause=%d, path=%s", count, pause, path);
404            Animation::Part part;
405            part.count = count;
406            part.pause = pause;
407            part.path = path;
408            animation.parts.add(part);
409        }
410        s = ++endl;
411    }
412
413    // read all the data structures
414    const size_t pcount = animation.parts.size();
415    for (size_t i=0 ; i<numEntries ; i++) {
416        char name[256];
417        ZipEntryRO entry = zip.findEntryByIndex(i);
418        if (zip.getEntryFileName(entry, name, 256) == 0) {
419            const String8 entryName(name);
420            const String8 path(entryName.getPathDir());
421            const String8 leaf(entryName.getPathLeaf());
422            if (leaf.size() > 0) {
423                for (int j=0 ; j<pcount ; j++) {
424                    if (path == animation.parts[j].path) {
425                        int method;
426                        // supports only stored png files
427                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
428                            if (method == ZipFileRO::kCompressStored) {
429                                FileMap* map = zip.createEntryFileMap(entry);
430                                if (map) {
431                                    Animation::Frame frame;
432                                    frame.name = leaf;
433                                    frame.map = map;
434                                    Animation::Part& part(animation.parts.editItemAt(j));
435                                    part.frames.add(frame);
436                                }
437                            }
438                        }
439                    }
440                }
441            }
442        }
443    }
444
445    // clear screen
446    glShadeModel(GL_FLAT);
447    glDisable(GL_DITHER);
448    glDisable(GL_SCISSOR_TEST);
449    glDisable(GL_BLEND);
450    glClearColor(0,0,0,1);
451    glClear(GL_COLOR_BUFFER_BIT);
452
453    eglSwapBuffers(mDisplay, mSurface);
454
455    glBindTexture(GL_TEXTURE_2D, 0);
456    glEnable(GL_TEXTURE_2D);
457    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
458    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
459    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
460    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
461    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
462
463    const int xc = (mWidth - animation.width) / 2;
464    const int yc = ((mHeight - animation.height) / 2);
465    nsecs_t lastFrame = systemTime();
466    nsecs_t frameDuration = s2ns(1) / animation.fps;
467
468    Region clearReg(Rect(mWidth, mHeight));
469    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
470
471    for (int i=0 ; i<pcount && !exitPending() ; i++) {
472        const Animation::Part& part(animation.parts[i]);
473        const size_t fcount = part.frames.size();
474        glBindTexture(GL_TEXTURE_2D, 0);
475
476        for (int r=0 ; !part.count || r<part.count ; r++) {
477            for (int j=0 ; j<fcount && !exitPending(); j++) {
478                const Animation::Frame& frame(part.frames[j]);
479
480                if (r > 0) {
481                    glBindTexture(GL_TEXTURE_2D, frame.tid);
482                } else {
483                    if (part.count != 1) {
484                        glGenTextures(1, &frame.tid);
485                        glBindTexture(GL_TEXTURE_2D, frame.tid);
486                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
487                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
488                    }
489                    initTexture(
490                            frame.map->getDataPtr(),
491                            frame.map->getDataLength());
492                }
493
494                if (!clearReg.isEmpty()) {
495                    Region::const_iterator head(clearReg.begin());
496                    Region::const_iterator tail(clearReg.end());
497                    glEnable(GL_SCISSOR_TEST);
498                    while (head != tail) {
499                        const Rect& r(*head++);
500                        glScissor(r.left, mHeight - r.bottom,
501                                r.width(), r.height());
502                        glClear(GL_COLOR_BUFFER_BIT);
503                    }
504                    glDisable(GL_SCISSOR_TEST);
505                }
506                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
507                eglSwapBuffers(mDisplay, mSurface);
508
509                nsecs_t now = systemTime();
510                nsecs_t delay = frameDuration - (now - lastFrame);
511                lastFrame = now;
512                long wait = ns2us(frameDuration);
513                if (wait > 0)
514                    usleep(wait);
515            }
516            usleep(part.pause * ns2us(frameDuration));
517        }
518
519        // free the textures for this part
520        if (part.count != 1) {
521            for (int j=0 ; j<fcount ; j++) {
522                const Animation::Frame& frame(part.frames[j]);
523                glDeleteTextures(1, &frame.tid);
524            }
525        }
526    }
527
528    return false;
529}
530
531// ---------------------------------------------------------------------------
532
533}
534; // namespace android
535