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
51 namespace android {
52
53 // ---------------------------------------------------------------------------
54
BootAnimation()55 BootAnimation::BootAnimation() : Thread(false)
56 {
57 mSession = new SurfaceComposerClient();
58 }
59
~BootAnimation()60 BootAnimation::~BootAnimation() {
61 }
62
onFirstRef()63 void 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
session() const71 sp<SurfaceComposerClient> BootAnimation::session() const {
72 return mSession;
73 }
74
75
binderDied(const wp<IBinder> & who)76 void 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
initTexture(Texture * texture,AssetManager & assets,const char * name)87 status_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
initTexture(void * buffer,size_t len)142 status_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
readyToRun()198 status_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
threadLoop()258 bool 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
android()277 bool 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
movie()343 bool 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
