BootAnimation.cpp revision 000479f9e325b4e426a67033abd92d47da412725 
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 <binder/IPCThreadState.h>
27#include <utils/threads.h>
28#include <utils/Atomic.h>
29#include <utils/Errors.h>
30#include <utils/Log.h>
31#include <utils/AssetManager.h>
32
33#include <ui/PixelFormat.h>
34#include <ui/Rect.h>
35#include <ui/Region.h>
36#include <ui/DisplayInfo.h>
37#include <ui/FramebufferNativeWindow.h>
38#include <ui/EGLUtils.h>
39
40#include <surfaceflinger/ISurfaceComposer.h>
41#include <surfaceflinger/ISurfaceFlingerClient.h>
42
43#include <core/SkBitmap.h>
44#include <images/SkImageDecoder.h>
45
46#include <GLES/gl.h>
47#include <GLES/glext.h>
48#include <EGL/eglext.h>
49
50#include "BootAnimation.h"
51
52namespace android {
53
54// ---------------------------------------------------------------------------
55
56BootAnimation::BootAnimation() : Thread(false)
57{
58    mSession = new SurfaceComposerClient();
59}
60
61BootAnimation::~BootAnimation() {
62}
63
64void BootAnimation::onFirstRef() {
65    status_t err = mSession->linkToComposerDeath(this);
66    LOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
67    if (err == NO_ERROR) {
68        run("BootAnimation", PRIORITY_DISPLAY);
69    }
70}
71
72sp<SurfaceComposerClient> BootAnimation::session() const {
73    return mSession;
74}
75
76
77void BootAnimation::binderDied(const wp<IBinder>& who)
78{
79    // woah, surfaceflinger died!
80    LOGD("SurfaceFlinger died, exiting...");
81
82    // calling requestExit() is not enough here because the Surface code
83    // might be blocked on a condition variable that will never be updated.
84    kill( getpid(), SIGKILL );
85    requestExit();
86}
87
88status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
89        const char* name) {
90    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
91    if (!asset)
92        return NO_INIT;
93    SkBitmap bitmap;
94    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
95            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
96    asset->close();
97    delete asset;
98
99    // ensure we can call getPixels(). No need to call unlock, since the
100    // bitmap will go out of scope when we return from this method.
101    bitmap.lockPixels();
102
103    const int w = bitmap.width();
104    const int h = bitmap.height();
105    const void* p = bitmap.getPixels();
106
107    GLint crop[4] = { 0, h, w, -h };
108    texture->w = w;
109    texture->h = h;
110
111    glGenTextures(1, &texture->name);
112    glBindTexture(GL_TEXTURE_2D, texture->name);
113
114    switch (bitmap.getConfig()) {
115        case SkBitmap::kA8_Config:
116            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
117                    GL_UNSIGNED_BYTE, p);
118            break;
119        case SkBitmap::kARGB_4444_Config:
120            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
121                    GL_UNSIGNED_SHORT_4_4_4_4, p);
122            break;
123        case SkBitmap::kARGB_8888_Config:
124            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
125                    GL_UNSIGNED_BYTE, p);
126            break;
127        case SkBitmap::kRGB_565_Config:
128            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
129                    GL_UNSIGNED_SHORT_5_6_5, p);
130            break;
131        default:
132            break;
133    }
134
135    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
136    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
137    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
138    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
139    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
140    return NO_ERROR;
141}
142
143status_t BootAnimation::initTexture(void* buffer, size_t len)
144{
145    //StopWatch watch("blah");
146
147    SkBitmap bitmap;
148    SkImageDecoder::DecodeMemory(buffer, len,
149            &bitmap, SkBitmap::kRGB_565_Config,
150            SkImageDecoder::kDecodePixels_Mode);
151
152    // ensure we can call getPixels(). No need to call unlock, since the
153    // bitmap will go out of scope when we return from this method.
154    bitmap.lockPixels();
155
156    const int w = bitmap.width();
157    const int h = bitmap.height();
158    const void* p = bitmap.getPixels();
159
160    GLint crop[4] = { 0, h, w, -h };
161    int tw = 1 << (31 - __builtin_clz(w));
162    int th = 1 << (31 - __builtin_clz(h));
163    if (tw < w) tw <<= 1;
164    if (th < h) th <<= 1;
165
166    switch (bitmap.getConfig()) {
167        case SkBitmap::kARGB_8888_Config:
168            if (tw != w || th != h) {
169                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
170                        GL_UNSIGNED_BYTE, 0);
171                glTexSubImage2D(GL_TEXTURE_2D, 0,
172                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
173            } else {
174                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
175                        GL_UNSIGNED_BYTE, p);
176            }
177            break;
178
179        case SkBitmap::kRGB_565_Config:
180            if (tw != w || th != h) {
181                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
182                        GL_UNSIGNED_SHORT_5_6_5, 0);
183                glTexSubImage2D(GL_TEXTURE_2D, 0,
184                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
185            } else {
186                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
187                        GL_UNSIGNED_SHORT_5_6_5, p);
188            }
189            break;
190        default:
191            break;
192    }
193
194    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
195
196    return NO_ERROR;
197}
198
199status_t BootAnimation::readyToRun() {
200    mAssets.addDefaultAssets();
201
202    DisplayInfo dinfo;
203    status_t status = session()->getDisplayInfo(0, &dinfo);
204    if (status)
205        return -1;
206
207    // create the native surface
208    sp<SurfaceControl> control = session()->createSurface(
209            getpid(), 0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
210    session()->openTransaction();
211    control->setLayer(0x40000000);
212    session()->closeTransaction();
213
214    sp<Surface> s = control->getSurface();
215
216    // initialize opengl and egl
217    const EGLint attribs[] = {
218            EGL_DEPTH_SIZE, 0,
219            EGL_NONE
220    };
221    EGLint w, h, dummy;
222    EGLint numConfigs;
223    EGLConfig config;
224    EGLSurface surface;
225    EGLContext context;
226
227    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
228
229    eglInitialize(display, 0, 0);
230    EGLUtils::selectConfigForNativeWindow(display, attribs, s.get(), &config);
231    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
232    context = eglCreateContext(display, config, NULL, NULL);
233    eglQuerySurface(display, surface, EGL_WIDTH, &w);
234    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
235
236    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
237        return NO_INIT;
238
239    mDisplay = display;
240    mContext = context;
241    mSurface = surface;
242    mWidth = w;
243    mHeight = h;
244    mFlingerSurfaceControl = control;
245    mFlingerSurface = s;
246
247    mAndroidAnimation = false;
248    status_t err = mZip.open("/data/local/bootanimation.zip");
249    if (err != NO_ERROR) {
250        err = mZip.open("/system/media/bootanimation.zip");
251        if (err != NO_ERROR) {
252            mAndroidAnimation = true;
253        }
254    }
255
256    return NO_ERROR;
257}
258
259bool BootAnimation::threadLoop()
260{
261    bool r;
262    if (mAndroidAnimation) {
263        r = android();
264    } else {
265        r = movie();
266    }
267
268    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
269    eglDestroyContext(mDisplay, mContext);
270    eglDestroySurface(mDisplay, mSurface);
271    mFlingerSurface.clear();
272    mFlingerSurfaceControl.clear();
273    eglTerminate(mDisplay);
274    IPCThreadState::self()->stopProcess();
275    return r;
276}
277
278bool BootAnimation::android()
279{
280    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
281    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
282
283    // clear screen
284    glShadeModel(GL_FLAT);
285    glDisable(GL_DITHER);
286    glDisable(GL_SCISSOR_TEST);
287    glClear(GL_COLOR_BUFFER_BIT);
288    eglSwapBuffers(mDisplay, mSurface);
289
290    glEnable(GL_TEXTURE_2D);
291    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
292
293    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
294    const GLint yc = (mHeight - mAndroid[0].h) / 2;
295    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
296
297    // draw and update only what we need
298    mFlingerSurface->setSwapRectangle(updateRect);
299
300    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
301            updateRect.height());
302
303    // Blend state
304    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
305    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
306
307    const nsecs_t startTime = systemTime();
308    do {
309        nsecs_t now = systemTime();
310        double time = now - startTime;
311        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
312        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
313        GLint x = xc - offset;
314
315        glDisable(GL_SCISSOR_TEST);
316        glClear(GL_COLOR_BUFFER_BIT);
317
318        glEnable(GL_SCISSOR_TEST);
319        glDisable(GL_BLEND);
320        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
321        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
322        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
323
324        glEnable(GL_BLEND);
325        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
326        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
327
328        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
329        if (res == EGL_FALSE)
330            break;
331
332        // 12fps: don't animate too fast to preserve CPU
333        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
334        if (sleepTime > 0)
335            usleep(sleepTime);
336    } while (!exitPending());
337
338    glDeleteTextures(1, &mAndroid[0].name);
339    glDeleteTextures(1, &mAndroid[1].name);
340    return false;
341}
342
343
344bool BootAnimation::movie()
345{
346    ZipFileRO& zip(mZip);
347
348    size_t numEntries = zip.getNumEntries();
349    ZipEntryRO desc = zip.findEntryByName("desc.txt");
350    FileMap* descMap = zip.createEntryFileMap(desc);
351    LOGE_IF(!descMap, "descMap is null");
352    if (!descMap) {
353        return false;
354    }
355
356    String8 desString((char const*)descMap->getDataPtr(),
357            descMap->getDataLength());
358    char const* s = desString.string();
359
360    Animation animation;
361
362    // Parse the description file
363    for (;;) {
364        const char* endl = strstr(s, "\n");
365        if (!endl) break;
366        String8 line(s, endl - s);
367        const char* l = line.string();
368        int fps, width, height, count, pause;
369        char path[256];
370        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
371            //LOGD("> w=%d, h=%d, fps=%d", fps, width, height);
372            animation.width = width;
373            animation.height = height;
374            animation.fps = fps;
375        }
376        if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
377            //LOGD("> count=%d, pause=%d, path=%s", count, pause, path);
378            Animation::Part part;
379            part.count = count;
380            part.pause = pause;
381            part.path = path;
382            animation.parts.add(part);
383        }
384        s = ++endl;
385    }
386
387    // read all the data structures
388    const size_t pcount = animation.parts.size();
389    for (size_t i=0 ; i<numEntries ; i++) {
390        char name[256];
391        ZipEntryRO entry = zip.findEntryByIndex(i);
392        if (zip.getEntryFileName(entry, name, 256) == 0) {
393            const String8 entryName(name);
394            const String8 path(entryName.getPathDir());
395            const String8 leaf(entryName.getPathLeaf());
396            if (leaf.size() > 0) {
397                for (int j=0 ; j<pcount ; j++) {
398                    if (path == animation.parts[j].path) {
399                        int method;
400                        // supports only stored png files
401                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
402                            if (method == ZipFileRO::kCompressStored) {
403                                FileMap* map = zip.createEntryFileMap(entry);
404                                if (map) {
405                                    Animation::Frame frame;
406                                    frame.name = leaf;
407                                    frame.map = map;
408                                    Animation::Part& part(animation.parts.editItemAt(j));
409                                    part.frames.add(frame);
410                                }
411                            }
412                        }
413                    }
414                }
415            }
416        }
417    }
418
419    // clear screen
420    glShadeModel(GL_FLAT);
421    glDisable(GL_DITHER);
422    glDisable(GL_SCISSOR_TEST);
423    glDisable(GL_BLEND);
424    glClear(GL_COLOR_BUFFER_BIT);
425
426    eglSwapBuffers(mDisplay, mSurface);
427
428    glBindTexture(GL_TEXTURE_2D, 0);
429    glEnable(GL_TEXTURE_2D);
430    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
431    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
432    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
433    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
434    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
435
436    const int xc = (mWidth - animation.width) / 2;
437    const int yc = ((mHeight - animation.height) / 2);
438    nsecs_t lastFrame = systemTime();
439    nsecs_t frameDuration = s2ns(1) / animation.fps;
440
441    Region clearReg(Rect(mWidth, mHeight));
442    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
443
444    for (int i=0 ; i<pcount && !exitPending() ; i++) {
445        const Animation::Part& part(animation.parts[i]);
446        const size_t fcount = part.frames.size();
447        glBindTexture(GL_TEXTURE_2D, 0);
448
449        for (int r=0 ; !part.count || r<part.count ; r++) {
450            for (int j=0 ; j<fcount && !exitPending(); j++) {
451                const Animation::Frame& frame(part.frames[j]);
452
453                if (r > 0) {
454                    glBindTexture(GL_TEXTURE_2D, frame.tid);
455                } else {
456                    if (part.count != 1) {
457                        glGenTextures(1, &frame.tid);
458                        glBindTexture(GL_TEXTURE_2D, frame.tid);
459                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
460                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
461                    }
462                    initTexture(
463                            frame.map->getDataPtr(),
464                            frame.map->getDataLength());
465                }
466
467                if (!clearReg.isEmpty()) {
468                    Region::const_iterator head(clearReg.begin());
469                    Region::const_iterator tail(clearReg.end());
470                    glEnable(GL_SCISSOR_TEST);
471                    while (head != tail) {
472                        const Rect& r(*head++);
473                        glScissor(r.left, mHeight - r.bottom,
474                                r.width(), r.height());
475                        glClear(GL_COLOR_BUFFER_BIT);
476                    }
477                    glDisable(GL_SCISSOR_TEST);
478                }
479                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
480                eglSwapBuffers(mDisplay, mSurface);
481
482                nsecs_t now = systemTime();
483                nsecs_t delay = frameDuration - (now - lastFrame);
484                lastFrame = now;
485                long wait = ns2us(frameDuration);
486                if (wait > 0)
487                    usleep(wait);
488            }
489            usleep(part.pause * ns2us(frameDuration));
490        }
491
492        // free the textures for this part
493        if (part.count != 1) {
494            for (int j=0 ; j<fcount ; j++) {
495                const Animation::Frame& frame(part.frames[j]);
496                glDeleteTextures(1, &frame.tid);
497            }
498        }
499    }
500
501    return false;
502}
503
504// ---------------------------------------------------------------------------
505
506}
507; // namespace android
508