BootAnimation.cpp revision 9f3020db15e50d07ee1ace42e47d90b076f2ce54 
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/ISurfaceComposer.h>
38#include <ui/ISurfaceFlingerClient.h>
39#include <ui/FramebufferNativeWindow.h>
40#include <ui/EGLUtils.h>
41
42#include <core/SkBitmap.h>
43#include <images/SkImageDecoder.h>
44
45#include <GLES/gl.h>
46#include <GLES/glext.h>
47#include <EGL/eglext.h>
48
49#include "BootAnimation.h"
50
51namespace android {
52
53// ---------------------------------------------------------------------------
54
55BootAnimation::BootAnimation() : Thread(false)
56{
57    mSession = new SurfaceComposerClient();
58}
59
60BootAnimation::~BootAnimation() {
61}
62
63void BootAnimation::onFirstRef() {
64    status_t err = mSession->linkToComposerDeath(this);
65    LOGE_IF(err, "linkToComposerDeath failed (%s) ", strerror(-err));
66    if (err == NO_ERROR) {
67        run("BootAnimation", PRIORITY_DISPLAY);
68    }
69}
70
71sp<SurfaceComposerClient> BootAnimation::session() const {
72    return mSession;
73}
74
75
76void BootAnimation::binderDied(const wp<IBinder>& who)
77{
78    // woah, surfaceflinger died!
79    LOGD("SurfaceFlinger died, exiting...");
80
81    // calling requestExit() is not enough here because the Surface code
82    // might be blocked on a condition variable that will never be updated.
83    kill( getpid(), SIGKILL );
84    requestExit();
85}
86
87status_t BootAnimation::initTexture(Texture* texture, AssetManager& assets,
88        const char* name) {
89    Asset* asset = assets.open(name, Asset::ACCESS_BUFFER);
90    if (!asset)
91        return NO_INIT;
92    SkBitmap bitmap;
93    SkImageDecoder::DecodeMemory(asset->getBuffer(false), asset->getLength(),
94            &bitmap, SkBitmap::kNo_Config, SkImageDecoder::kDecodePixels_Mode);
95    asset->close();
96    delete asset;
97
98    // ensure we can call getPixels(). No need to call unlock, since the
99    // bitmap will go out of scope when we return from this method.
100    bitmap.lockPixels();
101
102    const int w = bitmap.width();
103    const int h = bitmap.height();
104    const void* p = bitmap.getPixels();
105
106    GLint crop[4] = { 0, h, w, -h };
107    texture->w = w;
108    texture->h = h;
109
110    glGenTextures(1, &texture->name);
111    glBindTexture(GL_TEXTURE_2D, texture->name);
112
113    switch (bitmap.getConfig()) {
114        case SkBitmap::kA8_Config:
115            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, w, h, 0, GL_ALPHA,
116                    GL_UNSIGNED_BYTE, p);
117            break;
118        case SkBitmap::kARGB_4444_Config:
119            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
120                    GL_UNSIGNED_SHORT_4_4_4_4, p);
121            break;
122        case SkBitmap::kARGB_8888_Config:
123            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA,
124                    GL_UNSIGNED_BYTE, p);
125            break;
126        case SkBitmap::kRGB_565_Config:
127            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB,
128                    GL_UNSIGNED_SHORT_5_6_5, p);
129            break;
130        default:
131            break;
132    }
133
134    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
135    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
136    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
137    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
138    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
139    return NO_ERROR;
140}
141
142status_t BootAnimation::initTexture(void* buffer, size_t len)
143{
144    //StopWatch watch("blah");
145
146    SkBitmap bitmap;
147    SkImageDecoder::DecodeMemory(buffer, len,
148            &bitmap, SkBitmap::kRGB_565_Config,
149            SkImageDecoder::kDecodePixels_Mode);
150
151    // ensure we can call getPixels(). No need to call unlock, since the
152    // bitmap will go out of scope when we return from this method.
153    bitmap.lockPixels();
154
155    const int w = bitmap.width();
156    const int h = bitmap.height();
157    const void* p = bitmap.getPixels();
158
159    GLint crop[4] = { 0, h, w, -h };
160    int tw = 1 << (31 - __builtin_clz(w));
161    int th = 1 << (31 - __builtin_clz(h));
162    if (tw < w) tw <<= 1;
163    if (th < h) th <<= 1;
164
165    switch (bitmap.getConfig()) {
166        case SkBitmap::kARGB_8888_Config:
167            if (tw != w || th != h) {
168                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
169                        GL_UNSIGNED_BYTE, 0);
170                glTexSubImage2D(GL_TEXTURE_2D, 0,
171                        0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, p);
172            } else {
173                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA,
174                        GL_UNSIGNED_BYTE, p);
175            }
176            break;
177
178        case SkBitmap::kRGB_565_Config:
179            if (tw != w || th != h) {
180                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
181                        GL_UNSIGNED_SHORT_5_6_5, 0);
182                glTexSubImage2D(GL_TEXTURE_2D, 0,
183                        0, 0, w, h, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, p);
184            } else {
185                glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tw, th, 0, GL_RGB,
186                        GL_UNSIGNED_SHORT_5_6_5, p);
187            }
188            break;
189        default:
190            break;
191    }
192
193    glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, crop);
194
195    return NO_ERROR;
196}
197
198status_t BootAnimation::readyToRun() {
199    mAssets.addDefaultAssets();
200
201    DisplayInfo dinfo;
202    status_t status = session()->getDisplayInfo(0, &dinfo);
203    if (status)
204        return -1;
205
206    // create the native surface
207    sp<SurfaceControl> control = session()->createSurface(
208            getpid(), 0, dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
209    session()->openTransaction();
210    control->setLayer(0x40000000);
211    session()->closeTransaction();
212
213    sp<Surface> s = control->getSurface();
214
215    // initialize opengl and egl
216    const EGLint attribs[] = {
217            EGL_DEPTH_SIZE, 0,
218            EGL_NONE
219    };
220    EGLint w, h, dummy;
221    EGLint numConfigs;
222    EGLConfig config;
223    EGLSurface surface;
224    EGLContext context;
225
226    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
227
228    eglInitialize(display, 0, 0);
229    EGLUtils::selectConfigForNativeWindow(display, attribs, s.get(), &config);
230    surface = eglCreateWindowSurface(display, config, s.get(), NULL);
231    context = eglCreateContext(display, config, NULL, NULL);
232    eglQuerySurface(display, surface, EGL_WIDTH, &w);
233    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
234
235    if (eglMakeCurrent(display, surface, surface, context) == EGL_FALSE)
236        return NO_INIT;
237
238    mDisplay = display;
239    mContext = context;
240    mSurface = surface;
241    mWidth = w;
242    mHeight = h;
243    mFlingerSurfaceControl = control;
244    mFlingerSurface = s;
245
246    mAndroidAnimation = false;
247    status_t err = mZip.open("/data/local/bootanimation.zip");
248    if (err != NO_ERROR) {
249        err = mZip.open("/system/media/bootanimation.zip");
250        if (err != NO_ERROR) {
251            mAndroidAnimation = true;
252        }
253    }
254
255    return NO_ERROR;
256}
257
258bool BootAnimation::threadLoop()
259{
260    bool r;
261    if (mAndroidAnimation) {
262        r = android();
263    } else {
264        r = movie();
265    }
266
267    eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
268    eglDestroyContext(mDisplay, mContext);
269    eglDestroySurface(mDisplay, mSurface);
270    mFlingerSurface.clear();
271    mFlingerSurfaceControl.clear();
272    eglTerminate(mDisplay);
273    IPCThreadState::self()->stopProcess();
274    return r;
275}
276
277bool BootAnimation::android()
278{
279    initTexture(&mAndroid[0], mAssets, "images/android-logo-mask.png");
280    initTexture(&mAndroid[1], mAssets, "images/android-logo-shine.png");
281
282    // clear screen
283    glShadeModel(GL_FLAT);
284    glDisable(GL_DITHER);
285    glDisable(GL_SCISSOR_TEST);
286    glClear(GL_COLOR_BUFFER_BIT);
287    eglSwapBuffers(mDisplay, mSurface);
288
289    glEnable(GL_TEXTURE_2D);
290    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
291
292    const GLint xc = (mWidth  - mAndroid[0].w) / 2;
293    const GLint yc = (mHeight - mAndroid[0].h) / 2;
294    const Rect updateRect(xc, yc, xc + mAndroid[0].w, yc + mAndroid[0].h);
295
296    // draw and update only what we need
297    mFlingerSurface->setSwapRectangle(updateRect);
298
299    glScissor(updateRect.left, mHeight - updateRect.bottom, updateRect.width(),
300            updateRect.height());
301
302    // Blend state
303    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
304    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
305
306    const nsecs_t startTime = systemTime();
307    do {
308        nsecs_t now = systemTime();
309        double time = now - startTime;
310        float t = 4.0f * float(time / us2ns(16667)) / mAndroid[1].w;
311        GLint offset = (1 - (t - floorf(t))) * mAndroid[1].w;
312        GLint x = xc - offset;
313
314        glDisable(GL_SCISSOR_TEST);
315        glClear(GL_COLOR_BUFFER_BIT);
316
317        glEnable(GL_SCISSOR_TEST);
318        glDisable(GL_BLEND);
319        glBindTexture(GL_TEXTURE_2D, mAndroid[1].name);
320        glDrawTexiOES(x,                 yc, 0, mAndroid[1].w, mAndroid[1].h);
321        glDrawTexiOES(x + mAndroid[1].w, yc, 0, mAndroid[1].w, mAndroid[1].h);
322
323        glEnable(GL_BLEND);
324        glBindTexture(GL_TEXTURE_2D, mAndroid[0].name);
325        glDrawTexiOES(xc, yc, 0, mAndroid[0].w, mAndroid[0].h);
326
327        EGLBoolean res = eglSwapBuffers(mDisplay, mSurface);
328        if (res == EGL_FALSE)
329            break;
330
331        // 12fps: don't animate too fast to preserve CPU
332        const nsecs_t sleepTime = 83333 - ns2us(systemTime() - now);
333        if (sleepTime > 0)
334            usleep(sleepTime);
335    } while (!exitPending());
336
337    glDeleteTextures(1, &mAndroid[0].name);
338    glDeleteTextures(1, &mAndroid[1].name);
339    return false;
340}
341
342
343bool BootAnimation::movie()
344{
345    ZipFileRO& zip(mZip);
346
347    size_t numEntries = zip.getNumEntries();
348    ZipEntryRO desc = zip.findEntryByName("desc.txt");
349    FileMap* descMap = zip.createEntryFileMap(desc);
350    LOGE_IF(!descMap, "descMap is null");
351    if (!descMap) {
352        return false;
353    }
354
355    String8 desString((char const*)descMap->getDataPtr(),
356            descMap->getDataLength());
357    char const* s = desString.string();
358
359    Animation animation;
360
361    // Parse the description file
362    for (;;) {
363        const char* endl = strstr(s, "\n");
364        if (!endl) break;
365        String8 line(s, endl - s);
366        const char* l = line.string();
367        int fps, width, height, count, pause;
368        char path[256];
369        if (sscanf(l, "%d %d %d", &width, &height, &fps) == 3) {
370            //LOGD("> w=%d, h=%d, fps=%d", fps, width, height);
371            animation.width = width;
372            animation.height = height;
373            animation.fps = fps;
374        }
375        if (sscanf(l, "p %d %d %s", &count, &pause, path) == 3) {
376            //LOGD("> count=%d, pause=%d, path=%s", count, pause, path);
377            Animation::Part part;
378            part.count = count;
379            part.pause = pause;
380            part.path = path;
381            animation.parts.add(part);
382        }
383        s = ++endl;
384    }
385
386    // read all the data structures
387    const size_t pcount = animation.parts.size();
388    for (size_t i=0 ; i<numEntries ; i++) {
389        char name[256];
390        ZipEntryRO entry = zip.findEntryByIndex(i);
391        if (zip.getEntryFileName(entry, name, 256) == 0) {
392            const String8 entryName(name);
393            const String8 path(entryName.getPathDir());
394            const String8 leaf(entryName.getPathLeaf());
395            if (leaf.size() > 0) {
396                for (int j=0 ; j<pcount ; j++) {
397                    if (path == animation.parts[j].path) {
398                        int method;
399                        // supports only stored png files
400                        if (zip.getEntryInfo(entry, &method, 0, 0, 0, 0, 0)) {
401                            if (method == ZipFileRO::kCompressStored) {
402                                FileMap* map = zip.createEntryFileMap(entry);
403                                if (map) {
404                                    Animation::Frame frame;
405                                    frame.name = leaf;
406                                    frame.map = map;
407                                    Animation::Part& part(animation.parts.editItemAt(j));
408                                    part.frames.add(frame);
409                                }
410                            }
411                        }
412                    }
413                }
414            }
415        }
416    }
417
418    // clear screen
419    glShadeModel(GL_FLAT);
420    glDisable(GL_DITHER);
421    glDisable(GL_SCISSOR_TEST);
422    glDisable(GL_BLEND);
423    glClear(GL_COLOR_BUFFER_BIT);
424
425    eglSwapBuffers(mDisplay, mSurface);
426
427    glBindTexture(GL_TEXTURE_2D, 0);
428    glEnable(GL_TEXTURE_2D);
429    glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
430    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
431    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
432    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
433    glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
434
435    const int xc = (mWidth - animation.width) / 2;
436    const int yc = ((mHeight - animation.height) / 2);
437    nsecs_t lastFrame = systemTime();
438    nsecs_t frameDuration = s2ns(1) / animation.fps;
439
440    Region clearReg(Rect(mWidth, mHeight));
441    clearReg.subtractSelf(Rect(xc, yc, xc+animation.width, yc+animation.height));
442
443    for (int i=0 ; i<pcount && !exitPending() ; i++) {
444        const Animation::Part& part(animation.parts[i]);
445        const size_t fcount = part.frames.size();
446        glBindTexture(GL_TEXTURE_2D, 0);
447
448        for (int r=0 ; !part.count || r<part.count ; r++) {
449            for (int j=0 ; j<fcount && !exitPending(); j++) {
450                const Animation::Frame& frame(part.frames[j]);
451
452                if (r > 0) {
453                    glBindTexture(GL_TEXTURE_2D, frame.tid);
454                } else {
455                    if (part.count != 1) {
456                        glGenTextures(1, &frame.tid);
457                        glBindTexture(GL_TEXTURE_2D, frame.tid);
458                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
459                        glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
460                    }
461                    initTexture(
462                            frame.map->getDataPtr(),
463                            frame.map->getDataLength());
464                }
465
466                if (!clearReg.isEmpty()) {
467                    Region::const_iterator head(clearReg.begin());
468                    Region::const_iterator tail(clearReg.end());
469                    glEnable(GL_SCISSOR_TEST);
470                    while (head != tail) {
471                        const Rect& r(*head++);
472                        glScissor(r.left, mHeight - r.bottom,
473                                r.width(), r.height());
474                        glClear(GL_COLOR_BUFFER_BIT);
475                    }
476                    glDisable(GL_SCISSOR_TEST);
477                }
478                glDrawTexiOES(xc, yc, 0, animation.width, animation.height);
479                eglSwapBuffers(mDisplay, mSurface);
480
481                nsecs_t now = systemTime();
482                nsecs_t delay = frameDuration - (now - lastFrame);
483                lastFrame = now;
484                long wait = ns2us(frameDuration);
485                if (wait > 0)
486                    usleep(wait);
487            }
488            usleep(part.pause * ns2us(frameDuration));
489        }
490
491        // free the textures for this part
492        if (part.count != 1) {
493            for (int j=0 ; j<fcount ; j++) {
494                const Animation::Frame& frame(part.frames[j]);
495                glDeleteTextures(1, &frame.tid);
496            }
497        }
498    }
499
500    return false;
501}
502
503// ---------------------------------------------------------------------------
504
505}
506; // namespace android
507