1 /*
2 * Copyright (C) 2010 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 ATRACE_TAG ATRACE_TAG_GRAPHICS
18
19 #include <inttypes.h>
20 #include <math.h>
21 #include <stdint.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <sys/types.h>
26
27 #include <utils/Errors.h>
28 #include <utils/misc.h>
29 #include <utils/NativeHandle.h>
30 #include <utils/String8.h>
31 #include <utils/Thread.h>
32 #include <utils/Trace.h>
33 #include <utils/Vector.h>
34
35 #include <ui/GraphicBuffer.h>
36
37 #include <hardware/hardware.h>
38 #include <hardware/hwcomposer.h>
39
40 #include <android/configuration.h>
41
42 #include <cutils/log.h>
43 #include <cutils/properties.h>
44
45 #include "HWComposer.h"
46
47 #include "../Layer.h" // needed only for debugging
48 #include "../SurfaceFlinger.h"
49
50 namespace android {
51
52 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
53
hwcApiVersion(const hwc_composer_device_1_t * hwc)54 static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) {
55 uint32_t hwcVersion = hwc->common.version;
56 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
57 }
58
hwcHeaderVersion(const hwc_composer_device_1_t * hwc)59 static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) {
60 uint32_t hwcVersion = hwc->common.version;
61 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK;
62 }
63
hwcHasApiVersion(const hwc_composer_device_1_t * hwc,uint32_t version)64 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc,
65 uint32_t version) {
66 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK);
67 }
68
69 // ---------------------------------------------------------------------------
70
71 struct HWComposer::cb_context {
72 struct callbacks : public hwc_procs_t {
73 // these are here to facilitate the transition when adding
74 // new callbacks (an implementation can check for NULL before
75 // calling a new callback).
76 void (*zero[4])(void);
77 };
78 callbacks procs;
79 HWComposer* hwc;
80 };
81
82 // ---------------------------------------------------------------------------
83
HWComposer(const sp<SurfaceFlinger> & flinger,EventHandler & handler)84 HWComposer::HWComposer(
85 const sp<SurfaceFlinger>& flinger,
86 EventHandler& handler)
87 : mFlinger(flinger),
88 mFbDev(0), mHwc(0), mNumDisplays(1),
89 mCBContext(new cb_context),
90 mEventHandler(handler),
91 mDebugForceFakeVSync(false)
92 {
93 for (size_t i =0 ; i<MAX_HWC_DISPLAYS ; i++) {
94 mLists[i] = 0;
95 }
96
97 for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) {
98 mLastHwVSync[i] = 0;
99 mVSyncCounts[i] = 0;
100 }
101
102 char value[PROPERTY_VALUE_MAX];
103 property_get("debug.sf.no_hw_vsync", value, "0");
104 mDebugForceFakeVSync = atoi(value);
105
106 bool needVSyncThread = true;
107
108 // Note: some devices may insist that the FB HAL be opened before HWC.
109 int fberr = loadFbHalModule();
110 loadHwcModule();
111
112 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
113 // close FB HAL if we don't needed it.
114 // FIXME: this is temporary until we're not forced to open FB HAL
115 // before HWC.
116 framebuffer_close(mFbDev);
117 mFbDev = NULL;
118 }
119
120 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory.
121 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
122 && !mFbDev) {
123 ALOGE("ERROR: failed to open framebuffer (%s), aborting",
124 strerror(-fberr));
125 abort();
126 }
127
128 // these display IDs are always reserved
129 for (size_t i=0 ; i<NUM_BUILTIN_DISPLAYS ; i++) {
130 mAllocatedDisplayIDs.markBit(i);
131 }
132
133 if (mHwc) {
134 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER,
135 (hwcApiVersion(mHwc) >> 24) & 0xff,
136 (hwcApiVersion(mHwc) >> 16) & 0xff);
137 if (mHwc->registerProcs) {
138 mCBContext->hwc = this;
139 mCBContext->procs.invalidate = &hook_invalidate;
140 mCBContext->procs.vsync = &hook_vsync;
141 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
142 mCBContext->procs.hotplug = &hook_hotplug;
143 else
144 mCBContext->procs.hotplug = NULL;
145 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
146 mHwc->registerProcs(mHwc, &mCBContext->procs);
147 }
148
149 // don't need a vsync thread if we have a hardware composer
150 needVSyncThread = false;
151 // always turn vsync off when we start
152 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
153
154 // the number of displays we actually have depends on the
155 // hw composer version
156 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
157 // 1.3 adds support for virtual displays
158 mNumDisplays = MAX_HWC_DISPLAYS;
159 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
160 // 1.1 adds support for multiple displays
161 mNumDisplays = NUM_BUILTIN_DISPLAYS;
162 } else {
163 mNumDisplays = 1;
164 }
165 }
166
167 if (mFbDev) {
168 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)),
169 "should only have fbdev if no hwc or hwc is 1.0");
170
171 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
172 disp.connected = true;
173 disp.format = mFbDev->format;
174 DisplayConfig config = DisplayConfig();
175 config.width = mFbDev->width;
176 config.height = mFbDev->height;
177 config.xdpi = mFbDev->xdpi;
178 config.ydpi = mFbDev->ydpi;
179 config.refresh = nsecs_t(1e9 / mFbDev->fps);
180 disp.configs.push_back(config);
181 disp.currentConfig = 0;
182 } else if (mHwc) {
183 // here we're guaranteed to have at least HWC 1.1
184 for (size_t i =0 ; i<NUM_BUILTIN_DISPLAYS ; i++) {
185 queryDisplayProperties(i);
186 }
187 }
188
189 if (needVSyncThread) {
190 // we don't have VSYNC support, we need to fake it
191 mVSyncThread = new VSyncThread(*this);
192 }
193 }
194
~HWComposer()195 HWComposer::~HWComposer() {
196 if (mHwc) {
197 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
198 }
199 if (mVSyncThread != NULL) {
200 mVSyncThread->requestExitAndWait();
201 }
202 if (mHwc) {
203 hwc_close_1(mHwc);
204 }
205 if (mFbDev) {
206 framebuffer_close(mFbDev);
207 }
208 delete mCBContext;
209 }
210
211 // Load and prepare the hardware composer module. Sets mHwc.
loadHwcModule()212 void HWComposer::loadHwcModule()
213 {
214 hw_module_t const* module;
215
216 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
217 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID);
218 return;
219 }
220
221 int err = hwc_open_1(module, &mHwc);
222 if (err) {
223 ALOGE("%s device failed to initialize (%s)",
224 HWC_HARDWARE_COMPOSER, strerror(-err));
225 return;
226 }
227
228 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) ||
229 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION ||
230 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) {
231 ALOGE("%s device version %#x unsupported, will not be used",
232 HWC_HARDWARE_COMPOSER, mHwc->common.version);
233 hwc_close_1(mHwc);
234 mHwc = NULL;
235 return;
236 }
237 }
238
239 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev.
loadFbHalModule()240 int HWComposer::loadFbHalModule()
241 {
242 hw_module_t const* module;
243
244 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
245 if (err != 0) {
246 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID);
247 return err;
248 }
249
250 return framebuffer_open(module, &mFbDev);
251 }
252
initCheck() const253 status_t HWComposer::initCheck() const {
254 return mHwc ? NO_ERROR : NO_INIT;
255 }
256
hook_invalidate(const struct hwc_procs * procs)257 void HWComposer::hook_invalidate(const struct hwc_procs* procs) {
258 cb_context* ctx = reinterpret_cast<cb_context*>(
259 const_cast<hwc_procs_t*>(procs));
260 ctx->hwc->invalidate();
261 }
262
hook_vsync(const struct hwc_procs * procs,int disp,int64_t timestamp)263 void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp,
264 int64_t timestamp) {
265 cb_context* ctx = reinterpret_cast<cb_context*>(
266 const_cast<hwc_procs_t*>(procs));
267 ctx->hwc->vsync(disp, timestamp);
268 }
269
hook_hotplug(const struct hwc_procs * procs,int disp,int connected)270 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
271 int connected) {
272 cb_context* ctx = reinterpret_cast<cb_context*>(
273 const_cast<hwc_procs_t*>(procs));
274 ctx->hwc->hotplug(disp, connected);
275 }
276
invalidate()277 void HWComposer::invalidate() {
278 mFlinger->repaintEverything();
279 }
280
vsync(int disp,int64_t timestamp)281 void HWComposer::vsync(int disp, int64_t timestamp) {
282 if (uint32_t(disp) < HWC_NUM_PHYSICAL_DISPLAY_TYPES) {
283 {
284 Mutex::Autolock _l(mLock);
285
286 // There have been reports of HWCs that signal several vsync events
287 // with the same timestamp when turning the display off and on. This
288 // is a bug in the HWC implementation, but filter the extra events
289 // out here so they don't cause havoc downstream.
290 if (timestamp == mLastHwVSync[disp]) {
291 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")",
292 timestamp);
293 return;
294 }
295
296 mLastHwVSync[disp] = timestamp;
297 }
298
299 char tag[16];
300 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp);
301 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1);
302
303 mEventHandler.onVSyncReceived(disp, timestamp);
304 }
305 }
306
hotplug(int disp,int connected)307 void HWComposer::hotplug(int disp, int connected) {
308 if (disp == HWC_DISPLAY_PRIMARY || disp >= VIRTUAL_DISPLAY_ID_BASE) {
309 ALOGE("hotplug event received for invalid display: disp=%d connected=%d",
310 disp, connected);
311 return;
312 }
313 queryDisplayProperties(disp);
314 mEventHandler.onHotplugReceived(disp, bool(connected));
315 }
316
getDefaultDensity(uint32_t width,uint32_t height)317 static float getDefaultDensity(uint32_t width, uint32_t height) {
318 // Default density is based on TVs: 1080p displays get XHIGH density,
319 // lower-resolution displays get TV density. Maybe eventually we'll need
320 // to update it for 4K displays, though hopefully those just report
321 // accurate DPI information to begin with. This is also used for virtual
322 // displays and even primary displays with older hwcomposers, so be
323 // careful about orientation.
324
325 uint32_t h = width < height ? width : height;
326 if (h >= 1080) return ACONFIGURATION_DENSITY_XHIGH;
327 else return ACONFIGURATION_DENSITY_TV;
328 }
329
330 static const uint32_t DISPLAY_ATTRIBUTES[] = {
331 HWC_DISPLAY_VSYNC_PERIOD,
332 HWC_DISPLAY_WIDTH,
333 HWC_DISPLAY_HEIGHT,
334 HWC_DISPLAY_DPI_X,
335 HWC_DISPLAY_DPI_Y,
336 HWC_DISPLAY_NO_ATTRIBUTE,
337 };
338 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
339
queryDisplayProperties(int disp)340 status_t HWComposer::queryDisplayProperties(int disp) {
341
342 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
343
344 // use zero as default value for unspecified attributes
345 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
346 memset(values, 0, sizeof(values));
347
348 const size_t MAX_NUM_CONFIGS = 128;
349 uint32_t configs[MAX_NUM_CONFIGS] = {0};
350 size_t numConfigs = MAX_NUM_CONFIGS;
351 status_t err = mHwc->getDisplayConfigs(mHwc, disp, configs, &numConfigs);
352 if (err != NO_ERROR) {
353 // this can happen if an unpluggable display is not connected
354 mDisplayData[disp].connected = false;
355 return err;
356 }
357
358 mDisplayData[disp].currentConfig = 0;
359 for (size_t c = 0; c < numConfigs; ++c) {
360 err = mHwc->getDisplayAttributes(mHwc, disp, configs[c],
361 DISPLAY_ATTRIBUTES, values);
362 if (err != NO_ERROR) {
363 // we can't get this display's info. turn it off.
364 mDisplayData[disp].connected = false;
365 return err;
366 }
367
368 DisplayConfig config = DisplayConfig();
369 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
370 switch (DISPLAY_ATTRIBUTES[i]) {
371 case HWC_DISPLAY_VSYNC_PERIOD:
372 config.refresh = nsecs_t(values[i]);
373 break;
374 case HWC_DISPLAY_WIDTH:
375 config.width = values[i];
376 break;
377 case HWC_DISPLAY_HEIGHT:
378 config.height = values[i];
379 break;
380 case HWC_DISPLAY_DPI_X:
381 config.xdpi = values[i] / 1000.0f;
382 break;
383 case HWC_DISPLAY_DPI_Y:
384 config.ydpi = values[i] / 1000.0f;
385 break;
386 default:
387 ALOG_ASSERT(false, "unknown display attribute[%zu] %#x",
388 i, DISPLAY_ATTRIBUTES[i]);
389 break;
390 }
391 }
392
393 if (config.xdpi == 0.0f || config.ydpi == 0.0f) {
394 float dpi = getDefaultDensity(config.width, config.height);
395 config.xdpi = dpi;
396 config.ydpi = dpi;
397 }
398
399 mDisplayData[disp].configs.push_back(config);
400 }
401
402 // FIXME: what should we set the format to?
403 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888;
404 mDisplayData[disp].connected = true;
405 return NO_ERROR;
406 }
407
setVirtualDisplayProperties(int32_t id,uint32_t w,uint32_t h,uint32_t format)408 status_t HWComposer::setVirtualDisplayProperties(int32_t id,
409 uint32_t w, uint32_t h, uint32_t format) {
410 if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) ||
411 !mAllocatedDisplayIDs.hasBit(id)) {
412 return BAD_INDEX;
413 }
414 size_t configId = mDisplayData[id].currentConfig;
415 mDisplayData[id].format = format;
416 DisplayConfig& config = mDisplayData[id].configs.editItemAt(configId);
417 config.width = w;
418 config.height = h;
419 config.xdpi = config.ydpi = getDefaultDensity(w, h);
420 return NO_ERROR;
421 }
422
allocateDisplayId()423 int32_t HWComposer::allocateDisplayId() {
424 if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
425 return NO_MEMORY;
426 }
427 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit();
428 mAllocatedDisplayIDs.markBit(id);
429 mDisplayData[id].connected = true;
430 mDisplayData[id].configs.resize(1);
431 mDisplayData[id].currentConfig = 0;
432 return id;
433 }
434
freeDisplayId(int32_t id)435 status_t HWComposer::freeDisplayId(int32_t id) {
436 if (id < NUM_BUILTIN_DISPLAYS) {
437 // cannot free the reserved IDs
438 return BAD_VALUE;
439 }
440 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
441 return BAD_INDEX;
442 }
443 mAllocatedDisplayIDs.clearBit(id);
444 mDisplayData[id].connected = false;
445 return NO_ERROR;
446 }
447
getRefreshTimestamp(int disp) const448 nsecs_t HWComposer::getRefreshTimestamp(int disp) const {
449 // this returns the last refresh timestamp.
450 // if the last one is not available, we estimate it based on
451 // the refresh period and whatever closest timestamp we have.
452 Mutex::Autolock _l(mLock);
453 nsecs_t now = systemTime(CLOCK_MONOTONIC);
454 size_t configId = mDisplayData[disp].currentConfig;
455 return now - ((now - mLastHwVSync[disp]) %
456 mDisplayData[disp].configs[configId].refresh);
457 }
458
getDisplayFence(int disp) const459 sp<Fence> HWComposer::getDisplayFence(int disp) const {
460 return mDisplayData[disp].lastDisplayFence;
461 }
462
getFormat(int disp) const463 uint32_t HWComposer::getFormat(int disp) const {
464 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) {
465 return HAL_PIXEL_FORMAT_RGBA_8888;
466 } else {
467 return mDisplayData[disp].format;
468 }
469 }
470
isConnected(int disp) const471 bool HWComposer::isConnected(int disp) const {
472 return mDisplayData[disp].connected;
473 }
474
getWidth(int disp) const475 uint32_t HWComposer::getWidth(int disp) const {
476 size_t currentConfig = mDisplayData[disp].currentConfig;
477 return mDisplayData[disp].configs[currentConfig].width;
478 }
479
getHeight(int disp) const480 uint32_t HWComposer::getHeight(int disp) const {
481 size_t currentConfig = mDisplayData[disp].currentConfig;
482 return mDisplayData[disp].configs[currentConfig].height;
483 }
484
getDpiX(int disp) const485 float HWComposer::getDpiX(int disp) const {
486 size_t currentConfig = mDisplayData[disp].currentConfig;
487 return mDisplayData[disp].configs[currentConfig].xdpi;
488 }
489
getDpiY(int disp) const490 float HWComposer::getDpiY(int disp) const {
491 size_t currentConfig = mDisplayData[disp].currentConfig;
492 return mDisplayData[disp].configs[currentConfig].ydpi;
493 }
494
getRefreshPeriod(int disp) const495 nsecs_t HWComposer::getRefreshPeriod(int disp) const {
496 size_t currentConfig = mDisplayData[disp].currentConfig;
497 return mDisplayData[disp].configs[currentConfig].refresh;
498 }
499
getConfigs(int disp) const500 const Vector<HWComposer::DisplayConfig>& HWComposer::getConfigs(int disp) const {
501 return mDisplayData[disp].configs;
502 }
503
getCurrentConfig(int disp) const504 size_t HWComposer::getCurrentConfig(int disp) const {
505 return mDisplayData[disp].currentConfig;
506 }
507
eventControl(int disp,int event,int enabled)508 void HWComposer::eventControl(int disp, int event, int enabled) {
509 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) {
510 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)",
511 event, disp, enabled);
512 return;
513 }
514 if (event != EVENT_VSYNC) {
515 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)",
516 event, disp, enabled);
517 return;
518 }
519 status_t err = NO_ERROR;
520 if (mHwc && !mDebugForceFakeVSync) {
521 // NOTE: we use our own internal lock here because we have to call
522 // into the HWC with the lock held, and we want to make sure
523 // that even if HWC blocks (which it shouldn't), it won't
524 // affect other threads.
525 Mutex::Autolock _l(mEventControlLock);
526 const int32_t eventBit = 1UL << event;
527 const int32_t newValue = enabled ? eventBit : 0;
528 const int32_t oldValue = mDisplayData[disp].events & eventBit;
529 if (newValue != oldValue) {
530 ATRACE_CALL();
531 err = mHwc->eventControl(mHwc, disp, event, enabled);
532 if (!err) {
533 int32_t& events(mDisplayData[disp].events);
534 events = (events & ~eventBit) | newValue;
535
536 char tag[16];
537 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", disp);
538 ATRACE_INT(tag, enabled);
539 }
540 }
541 // error here should not happen -- not sure what we should
542 // do if it does.
543 ALOGE_IF(err, "eventControl(%d, %d) failed %s",
544 event, enabled, strerror(-err));
545 }
546
547 if (err == NO_ERROR && mVSyncThread != NULL) {
548 mVSyncThread->setEnabled(enabled);
549 }
550 }
551
createWorkList(int32_t id,size_t numLayers)552 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) {
553 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
554 return BAD_INDEX;
555 }
556
557 if (mHwc) {
558 DisplayData& disp(mDisplayData[id]);
559 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
560 // we need space for the HWC_FRAMEBUFFER_TARGET
561 numLayers++;
562 }
563 if (disp.capacity < numLayers || disp.list == NULL) {
564 size_t size = sizeof(hwc_display_contents_1_t)
565 + numLayers * sizeof(hwc_layer_1_t);
566 free(disp.list);
567 disp.list = (hwc_display_contents_1_t*)malloc(size);
568 disp.capacity = numLayers;
569 }
570 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
571 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1];
572 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t));
573 const DisplayConfig& currentConfig =
574 disp.configs[disp.currentConfig];
575 const hwc_rect_t r = { 0, 0,
576 (int) currentConfig.width, (int) currentConfig.height };
577 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
578 disp.framebufferTarget->hints = 0;
579 disp.framebufferTarget->flags = 0;
580 disp.framebufferTarget->handle = disp.fbTargetHandle;
581 disp.framebufferTarget->transform = 0;
582 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT;
583 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
584 disp.framebufferTarget->sourceCropf.left = 0;
585 disp.framebufferTarget->sourceCropf.top = 0;
586 disp.framebufferTarget->sourceCropf.right =
587 currentConfig.width;
588 disp.framebufferTarget->sourceCropf.bottom =
589 currentConfig.height;
590 } else {
591 disp.framebufferTarget->sourceCrop = r;
592 }
593 disp.framebufferTarget->displayFrame = r;
594 disp.framebufferTarget->visibleRegionScreen.numRects = 1;
595 disp.framebufferTarget->visibleRegionScreen.rects =
596 &disp.framebufferTarget->displayFrame;
597 disp.framebufferTarget->acquireFenceFd = -1;
598 disp.framebufferTarget->releaseFenceFd = -1;
599 disp.framebufferTarget->planeAlpha = 0xFF;
600 }
601 disp.list->retireFenceFd = -1;
602 disp.list->flags = HWC_GEOMETRY_CHANGED;
603 disp.list->numHwLayers = numLayers;
604 }
605 return NO_ERROR;
606 }
607
setFramebufferTarget(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buf)608 status_t HWComposer::setFramebufferTarget(int32_t id,
609 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) {
610 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
611 return BAD_INDEX;
612 }
613 DisplayData& disp(mDisplayData[id]);
614 if (!disp.framebufferTarget) {
615 // this should never happen, but apparently eglCreateWindowSurface()
616 // triggers a Surface::queueBuffer() on some
617 // devices (!?) -- log and ignore.
618 ALOGE("HWComposer: framebufferTarget is null");
619 return NO_ERROR;
620 }
621
622 int acquireFenceFd = -1;
623 if (acquireFence->isValid()) {
624 acquireFenceFd = acquireFence->dup();
625 }
626
627 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd);
628 disp.fbTargetHandle = buf->handle;
629 disp.framebufferTarget->handle = disp.fbTargetHandle;
630 disp.framebufferTarget->acquireFenceFd = acquireFenceFd;
631 return NO_ERROR;
632 }
633
prepare()634 status_t HWComposer::prepare() {
635 for (size_t i=0 ; i<mNumDisplays ; i++) {
636 DisplayData& disp(mDisplayData[i]);
637 if (disp.framebufferTarget) {
638 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET
639 // DO NOT reset the handle field to NULL, because it's possible
640 // that we have nothing to redraw (eg: eglSwapBuffers() not called)
641 // in which case, we should continue to use the same buffer.
642 LOG_FATAL_IF(disp.list == NULL);
643 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
644 }
645 if (!disp.connected && disp.list != NULL) {
646 ALOGW("WARNING: disp %zu: connected, non-null list, layers=%zu",
647 i, disp.list->numHwLayers);
648 }
649 mLists[i] = disp.list;
650 if (mLists[i]) {
651 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
652 mLists[i]->outbuf = disp.outbufHandle;
653 mLists[i]->outbufAcquireFenceFd = -1;
654 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
655 // garbage data to catch improper use
656 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF;
657 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF;
658 } else {
659 mLists[i]->dpy = EGL_NO_DISPLAY;
660 mLists[i]->sur = EGL_NO_SURFACE;
661 }
662 }
663 }
664
665 int err = mHwc->prepare(mHwc, mNumDisplays, mLists);
666 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err));
667
668 if (err == NO_ERROR) {
669 // here we're just making sure that "skip" layers are set
670 // to HWC_FRAMEBUFFER and we're also counting how many layers
671 // we have of each type.
672 //
673 // If there are no window layers, we treat the display has having FB
674 // composition, because SurfaceFlinger will use GLES to draw the
675 // wormhole region.
676 for (size_t i=0 ; i<mNumDisplays ; i++) {
677 DisplayData& disp(mDisplayData[i]);
678 disp.hasFbComp = false;
679 disp.hasOvComp = false;
680 if (disp.list) {
681 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
682 hwc_layer_1_t& l = disp.list->hwLayers[i];
683
684 //ALOGD("prepare: %d, type=%d, handle=%p",
685 // i, l.compositionType, l.handle);
686
687 if (l.flags & HWC_SKIP_LAYER) {
688 l.compositionType = HWC_FRAMEBUFFER;
689 }
690 if (l.compositionType == HWC_FRAMEBUFFER) {
691 disp.hasFbComp = true;
692 }
693 if (l.compositionType == HWC_OVERLAY) {
694 disp.hasOvComp = true;
695 }
696 if (l.compositionType == HWC_CURSOR_OVERLAY) {
697 disp.hasOvComp = true;
698 }
699 }
700 if (disp.list->numHwLayers == (disp.framebufferTarget ? 1 : 0)) {
701 disp.hasFbComp = true;
702 }
703 } else {
704 disp.hasFbComp = true;
705 }
706 }
707 }
708 return (status_t)err;
709 }
710
hasHwcComposition(int32_t id) const711 bool HWComposer::hasHwcComposition(int32_t id) const {
712 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
713 return false;
714 return mDisplayData[id].hasOvComp;
715 }
716
hasGlesComposition(int32_t id) const717 bool HWComposer::hasGlesComposition(int32_t id) const {
718 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
719 return true;
720 return mDisplayData[id].hasFbComp;
721 }
722
getAndResetReleaseFence(int32_t id)723 sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) {
724 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
725 return Fence::NO_FENCE;
726
727 int fd = INVALID_OPERATION;
728 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
729 const DisplayData& disp(mDisplayData[id]);
730 if (disp.framebufferTarget) {
731 fd = disp.framebufferTarget->releaseFenceFd;
732 disp.framebufferTarget->acquireFenceFd = -1;
733 disp.framebufferTarget->releaseFenceFd = -1;
734 }
735 }
736 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
737 }
738
commit()739 status_t HWComposer::commit() {
740 int err = NO_ERROR;
741 if (mHwc) {
742 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
743 // On version 1.0, the OpenGL ES target surface is communicated
744 // by the (dpy, sur) fields and we are guaranteed to have only
745 // a single display.
746 mLists[0]->dpy = eglGetCurrentDisplay();
747 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW);
748 }
749
750 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) {
751 DisplayData& disp(mDisplayData[i]);
752 if (disp.outbufHandle) {
753 mLists[i]->outbuf = disp.outbufHandle;
754 mLists[i]->outbufAcquireFenceFd =
755 disp.outbufAcquireFence->dup();
756 }
757 }
758
759 err = mHwc->set(mHwc, mNumDisplays, mLists);
760
761 for (size_t i=0 ; i<mNumDisplays ; i++) {
762 DisplayData& disp(mDisplayData[i]);
763 disp.lastDisplayFence = disp.lastRetireFence;
764 disp.lastRetireFence = Fence::NO_FENCE;
765 if (disp.list) {
766 if (disp.list->retireFenceFd != -1) {
767 disp.lastRetireFence = new Fence(disp.list->retireFenceFd);
768 disp.list->retireFenceFd = -1;
769 }
770 disp.list->flags &= ~HWC_GEOMETRY_CHANGED;
771 }
772 }
773 }
774 return (status_t)err;
775 }
776
setPowerMode(int disp,int mode)777 status_t HWComposer::setPowerMode(int disp, int mode) {
778 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
779 if (mHwc) {
780 if (mode == HWC_POWER_MODE_OFF) {
781 eventControl(disp, HWC_EVENT_VSYNC, 0);
782 }
783 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
784 return (status_t)mHwc->setPowerMode(mHwc, disp, mode);
785 } else {
786 return (status_t)mHwc->blank(mHwc, disp,
787 mode == HWC_POWER_MODE_OFF ? 1 : 0);
788 }
789 }
790 return NO_ERROR;
791 }
792
setActiveConfig(int disp,int mode)793 status_t HWComposer::setActiveConfig(int disp, int mode) {
794 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
795 DisplayData& dd(mDisplayData[disp]);
796 dd.currentConfig = mode;
797 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
798 return (status_t)mHwc->setActiveConfig(mHwc, disp, mode);
799 } else {
800 LOG_FATAL_IF(mode != 0);
801 }
802 return NO_ERROR;
803 }
804
disconnectDisplay(int disp)805 void HWComposer::disconnectDisplay(int disp) {
806 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY);
807 DisplayData& dd(mDisplayData[disp]);
808 free(dd.list);
809 dd.list = NULL;
810 dd.framebufferTarget = NULL; // points into dd.list
811 dd.fbTargetHandle = NULL;
812 dd.outbufHandle = NULL;
813 dd.lastRetireFence = Fence::NO_FENCE;
814 dd.lastDisplayFence = Fence::NO_FENCE;
815 dd.outbufAcquireFence = Fence::NO_FENCE;
816 // clear all the previous configs and repopulate when a new
817 // device is added
818 dd.configs.clear();
819 }
820
getVisualID() const821 int HWComposer::getVisualID() const {
822 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
823 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
824 // is supported by the implementation. we can only be in this case
825 // if we have HWC 1.1
826 return HAL_PIXEL_FORMAT_RGBA_8888;
827 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
828 } else {
829 return mFbDev->format;
830 }
831 }
832
supportsFramebufferTarget() const833 bool HWComposer::supportsFramebufferTarget() const {
834 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
835 }
836
fbPost(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buffer)837 int HWComposer::fbPost(int32_t id,
838 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) {
839 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
840 return setFramebufferTarget(id, acquireFence, buffer);
841 } else {
842 acquireFence->waitForever("HWComposer::fbPost");
843 return mFbDev->post(mFbDev, buffer->handle);
844 }
845 }
846
fbCompositionComplete()847 int HWComposer::fbCompositionComplete() {
848 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
849 return NO_ERROR;
850
851 if (mFbDev->compositionComplete) {
852 return mFbDev->compositionComplete(mFbDev);
853 } else {
854 return INVALID_OPERATION;
855 }
856 }
857
fbDump(String8 & result)858 void HWComposer::fbDump(String8& result) {
859 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) {
860 const size_t SIZE = 4096;
861 char buffer[SIZE];
862 mFbDev->dump(mFbDev, buffer, SIZE);
863 result.append(buffer);
864 }
865 }
866
setOutputBuffer(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buf)867 status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence,
868 const sp<GraphicBuffer>& buf) {
869 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
870 return BAD_INDEX;
871 if (id < VIRTUAL_DISPLAY_ID_BASE)
872 return INVALID_OPERATION;
873
874 DisplayData& disp(mDisplayData[id]);
875 disp.outbufHandle = buf->handle;
876 disp.outbufAcquireFence = acquireFence;
877 return NO_ERROR;
878 }
879
getLastRetireFence(int32_t id) const880 sp<Fence> HWComposer::getLastRetireFence(int32_t id) const {
881 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
882 return Fence::NO_FENCE;
883 return mDisplayData[id].lastRetireFence;
884 }
885
setCursorPositionAsync(int32_t id,const Rect & pos)886 status_t HWComposer::setCursorPositionAsync(int32_t id, const Rect& pos)
887 {
888 if (mHwc->setCursorPositionAsync) {
889 return (status_t)mHwc->setCursorPositionAsync(mHwc, id, pos.left, pos.top);
890 }
891 else {
892 return NO_ERROR;
893 }
894 }
895
896 /*
897 * Helper template to implement a concrete HWCLayer
898 * This holds the pointer to the concrete hwc layer type
899 * and implements the "iterable" side of HWCLayer.
900 */
901 template<typename CONCRETE, typename HWCTYPE>
902 class Iterable : public HWComposer::HWCLayer {
903 protected:
904 HWCTYPE* const mLayerList;
905 HWCTYPE* mCurrentLayer;
Iterable(HWCTYPE * layer)906 Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer) { }
getLayer() const907 inline HWCTYPE const * getLayer() const { return mCurrentLayer; }
getLayer()908 inline HWCTYPE* getLayer() { return mCurrentLayer; }
~Iterable()909 virtual ~Iterable() { }
910 private:
911 // returns a copy of ourselves
dup()912 virtual HWComposer::HWCLayer* dup() {
913 return new CONCRETE( static_cast<const CONCRETE&>(*this) );
914 }
setLayer(size_t index)915 virtual status_t setLayer(size_t index) {
916 mCurrentLayer = &mLayerList[index];
917 return NO_ERROR;
918 }
919 };
920
921 /*
922 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0.
923 * This implements the HWCLayer side of HWCIterableLayer.
924 */
925 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> {
926 struct hwc_composer_device_1* mHwc;
927 public:
HWCLayerVersion1(struct hwc_composer_device_1 * hwc,hwc_layer_1_t * layer)928 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer)
929 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc) { }
930
getCompositionType() const931 virtual int32_t getCompositionType() const {
932 return getLayer()->compositionType;
933 }
getHints() const934 virtual uint32_t getHints() const {
935 return getLayer()->hints;
936 }
getAndResetReleaseFence()937 virtual sp<Fence> getAndResetReleaseFence() {
938 int fd = getLayer()->releaseFenceFd;
939 getLayer()->releaseFenceFd = -1;
940 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
941 }
setAcquireFenceFd(int fenceFd)942 virtual void setAcquireFenceFd(int fenceFd) {
943 getLayer()->acquireFenceFd = fenceFd;
944 }
setPerFrameDefaultState()945 virtual void setPerFrameDefaultState() {
946 //getLayer()->compositionType = HWC_FRAMEBUFFER;
947 }
setPlaneAlpha(uint8_t alpha)948 virtual void setPlaneAlpha(uint8_t alpha) {
949 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
950 getLayer()->planeAlpha = alpha;
951 } else {
952 if (alpha < 0xFF) {
953 getLayer()->flags |= HWC_SKIP_LAYER;
954 }
955 }
956 }
setDefaultState()957 virtual void setDefaultState() {
958 hwc_layer_1_t* const l = getLayer();
959 l->compositionType = HWC_FRAMEBUFFER;
960 l->hints = 0;
961 l->flags = HWC_SKIP_LAYER;
962 l->handle = 0;
963 l->transform = 0;
964 l->blending = HWC_BLENDING_NONE;
965 l->visibleRegionScreen.numRects = 0;
966 l->visibleRegionScreen.rects = NULL;
967 l->acquireFenceFd = -1;
968 l->releaseFenceFd = -1;
969 l->planeAlpha = 0xFF;
970 }
setSkip(bool skip)971 virtual void setSkip(bool skip) {
972 if (skip) {
973 getLayer()->flags |= HWC_SKIP_LAYER;
974 } else {
975 getLayer()->flags &= ~HWC_SKIP_LAYER;
976 }
977 }
setIsCursorLayerHint(bool isCursor)978 virtual void setIsCursorLayerHint(bool isCursor) {
979 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
980 if (isCursor) {
981 getLayer()->flags |= HWC_IS_CURSOR_LAYER;
982 }
983 else {
984 getLayer()->flags &= ~HWC_IS_CURSOR_LAYER;
985 }
986 }
987 }
setBlending(uint32_t blending)988 virtual void setBlending(uint32_t blending) {
989 getLayer()->blending = blending;
990 }
setTransform(uint32_t transform)991 virtual void setTransform(uint32_t transform) {
992 getLayer()->transform = transform;
993 }
setFrame(const Rect & frame)994 virtual void setFrame(const Rect& frame) {
995 getLayer()->displayFrame = reinterpret_cast<hwc_rect_t const&>(frame);
996 }
setCrop(const FloatRect & crop)997 virtual void setCrop(const FloatRect& crop) {
998 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
999 getLayer()->sourceCropf = reinterpret_cast<hwc_frect_t const&>(crop);
1000 } else {
1001 /*
1002 * Since h/w composer didn't support a flot crop rect before version 1.3,
1003 * using integer coordinates instead produces a different output from the GL code in
1004 * Layer::drawWithOpenGL(). The difference can be large if the buffer crop to
1005 * window size ratio is large and a window crop is defined
1006 * (i.e.: if we scale the buffer a lot and we also crop it with a window crop).
1007 */
1008 hwc_rect_t& r = getLayer()->sourceCrop;
1009 r.left = int(ceilf(crop.left));
1010 r.top = int(ceilf(crop.top));
1011 r.right = int(floorf(crop.right));
1012 r.bottom= int(floorf(crop.bottom));
1013 }
1014 }
setVisibleRegionScreen(const Region & reg)1015 virtual void setVisibleRegionScreen(const Region& reg) {
1016 // Region::getSharedBuffer creates a reference to the underlying
1017 // SharedBuffer of this Region, this reference is freed
1018 // in onDisplayed()
1019 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
1020 SharedBuffer const* sb = reg.getSharedBuffer(&visibleRegion.numRects);
1021 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(sb->data());
1022 }
setSidebandStream(const sp<NativeHandle> & stream)1023 virtual void setSidebandStream(const sp<NativeHandle>& stream) {
1024 ALOG_ASSERT(stream->handle() != NULL);
1025 getLayer()->compositionType = HWC_SIDEBAND;
1026 getLayer()->sidebandStream = stream->handle();
1027 }
setBuffer(const sp<GraphicBuffer> & buffer)1028 virtual void setBuffer(const sp<GraphicBuffer>& buffer) {
1029 if (buffer == 0 || buffer->handle == 0) {
1030 getLayer()->compositionType = HWC_FRAMEBUFFER;
1031 getLayer()->flags |= HWC_SKIP_LAYER;
1032 getLayer()->handle = 0;
1033 } else {
1034 if (getLayer()->compositionType == HWC_SIDEBAND) {
1035 // If this was a sideband layer but the stream was removed, reset
1036 // it to FRAMEBUFFER. The HWC can change it to OVERLAY in prepare.
1037 getLayer()->compositionType = HWC_FRAMEBUFFER;
1038 }
1039 getLayer()->handle = buffer->handle;
1040 }
1041 }
onDisplayed()1042 virtual void onDisplayed() {
1043 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
1044 SharedBuffer const* sb = SharedBuffer::bufferFromData(visibleRegion.rects);
1045 if (sb) {
1046 sb->release();
1047 // not technically needed but safer
1048 visibleRegion.numRects = 0;
1049 visibleRegion.rects = NULL;
1050 }
1051
1052 getLayer()->acquireFenceFd = -1;
1053 }
1054 };
1055
1056 /*
1057 * returns an iterator initialized at a given index in the layer list
1058 */
getLayerIterator(int32_t id,size_t index)1059 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) {
1060 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
1061 return LayerListIterator();
1062 }
1063 const DisplayData& disp(mDisplayData[id]);
1064 if (!mHwc || !disp.list || index > disp.list->numHwLayers) {
1065 return LayerListIterator();
1066 }
1067 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers), index);
1068 }
1069
1070 /*
1071 * returns an iterator on the beginning of the layer list
1072 */
begin(int32_t id)1073 HWComposer::LayerListIterator HWComposer::begin(int32_t id) {
1074 return getLayerIterator(id, 0);
1075 }
1076
1077 /*
1078 * returns an iterator on the end of the layer list
1079 */
end(int32_t id)1080 HWComposer::LayerListIterator HWComposer::end(int32_t id) {
1081 size_t numLayers = 0;
1082 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) {
1083 const DisplayData& disp(mDisplayData[id]);
1084 if (mHwc && disp.list) {
1085 numLayers = disp.list->numHwLayers;
1086 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
1087 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET,
1088 // which we ignore when iterating through the layer list.
1089 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id);
1090 if (numLayers) {
1091 numLayers--;
1092 }
1093 }
1094 }
1095 }
1096 return getLayerIterator(id, numLayers);
1097 }
1098
1099 // Converts a PixelFormat to a human-readable string. Max 11 chars.
1100 // (Could use a table of prefab String8 objects.)
getFormatStr(PixelFormat format)1101 static String8 getFormatStr(PixelFormat format) {
1102 switch (format) {
1103 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888");
1104 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888");
1105 case PIXEL_FORMAT_RGB_888: return String8("RGB_888");
1106 case PIXEL_FORMAT_RGB_565: return String8("RGB_565");
1107 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888");
1108 case PIXEL_FORMAT_sRGB_A_8888: return String8("sRGB_A_8888");
1109 case PIXEL_FORMAT_sRGB_X_8888: return String8("sRGB_x_8888");
1110 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
1111 return String8("ImplDef");
1112 default:
1113 String8 result;
1114 result.appendFormat("? %08x", format);
1115 return result;
1116 }
1117 }
1118
dump(String8 & result) const1119 void HWComposer::dump(String8& result) const {
1120 if (mHwc) {
1121 result.appendFormat("Hardware Composer state (version %08x):\n", hwcApiVersion(mHwc));
1122 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync);
1123 for (size_t i=0 ; i<mNumDisplays ; i++) {
1124 const DisplayData& disp(mDisplayData[i]);
1125 if (!disp.connected)
1126 continue;
1127
1128 const Vector< sp<Layer> >& visibleLayersSortedByZ =
1129 mFlinger->getLayerSortedByZForHwcDisplay(i);
1130
1131
1132 result.appendFormat(" Display[%zd] configurations (* current):\n", i);
1133 for (size_t c = 0; c < disp.configs.size(); ++c) {
1134 const DisplayConfig& config(disp.configs[c]);
1135 result.appendFormat(" %s%zd: %ux%u, xdpi=%f, ydpi=%f, refresh=%" PRId64 "\n",
1136 c == disp.currentConfig ? "* " : "", c, config.width, config.height,
1137 config.xdpi, config.ydpi, config.refresh);
1138 }
1139
1140 if (disp.list) {
1141 result.appendFormat(
1142 " numHwLayers=%zu, flags=%08x\n",
1143 disp.list->numHwLayers, disp.list->flags);
1144
1145 result.append(
1146 " type | handle | hint | flag | tr | blnd | format | source crop (l,t,r,b) | frame | name \n"
1147 "-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------\n");
1148 // " _________ | ________ | ____ | ____ | __ | ____ | ___________ |_____._,_____._,_____._,_____._ |_____,_____,_____,_____ | ___...
1149 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
1150 const hwc_layer_1_t&l = disp.list->hwLayers[i];
1151 int32_t format = -1;
1152 String8 name("unknown");
1153
1154 if (i < visibleLayersSortedByZ.size()) {
1155 const sp<Layer>& layer(visibleLayersSortedByZ[i]);
1156 const sp<GraphicBuffer>& buffer(
1157 layer->getActiveBuffer());
1158 if (buffer != NULL) {
1159 format = buffer->getPixelFormat();
1160 }
1161 name = layer->getName();
1162 }
1163
1164 int type = l.compositionType;
1165 if (type == HWC_FRAMEBUFFER_TARGET) {
1166 name = "HWC_FRAMEBUFFER_TARGET";
1167 format = disp.format;
1168 }
1169
1170 static char const* compositionTypeName[] = {
1171 "GLES",
1172 "HWC",
1173 "BKGND",
1174 "FB TARGET",
1175 "SIDEBAND",
1176 "HWC_CURSOR",
1177 "UNKNOWN"};
1178 if (type >= NELEM(compositionTypeName))
1179 type = NELEM(compositionTypeName) - 1;
1180
1181 String8 formatStr = getFormatStr(format);
1182 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
1183 result.appendFormat(
1184 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7.1f,%7.1f,%7.1f,%7.1f |%5d,%5d,%5d,%5d | %s\n",
1185 compositionTypeName[type],
1186 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(),
1187 l.sourceCropf.left, l.sourceCropf.top, l.sourceCropf.right, l.sourceCropf.bottom,
1188 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1189 name.string());
1190 } else {
1191 result.appendFormat(
1192 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7d,%7d,%7d,%7d |%5d,%5d,%5d,%5d | %s\n",
1193 compositionTypeName[type],
1194 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(),
1195 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom,
1196 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1197 name.string());
1198 }
1199 }
1200 }
1201 }
1202 }
1203
1204 if (mHwc && mHwc->dump) {
1205 const size_t SIZE = 4096;
1206 char buffer[SIZE];
1207 mHwc->dump(mHwc, buffer, SIZE);
1208 result.append(buffer);
1209 }
1210 }
1211
1212 // ---------------------------------------------------------------------------
1213
VSyncThread(HWComposer & hwc)1214 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc)
1215 : mHwc(hwc), mEnabled(false),
1216 mNextFakeVSync(0),
1217 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY))
1218 {
1219 }
1220
setEnabled(bool enabled)1221 void HWComposer::VSyncThread::setEnabled(bool enabled) {
1222 Mutex::Autolock _l(mLock);
1223 if (mEnabled != enabled) {
1224 mEnabled = enabled;
1225 mCondition.signal();
1226 }
1227 }
1228
onFirstRef()1229 void HWComposer::VSyncThread::onFirstRef() {
1230 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
1231 }
1232
threadLoop()1233 bool HWComposer::VSyncThread::threadLoop() {
1234 { // scope for lock
1235 Mutex::Autolock _l(mLock);
1236 while (!mEnabled) {
1237 mCondition.wait(mLock);
1238 }
1239 }
1240
1241 const nsecs_t period = mRefreshPeriod;
1242 const nsecs_t now = systemTime(CLOCK_MONOTONIC);
1243 nsecs_t next_vsync = mNextFakeVSync;
1244 nsecs_t sleep = next_vsync - now;
1245 if (sleep < 0) {
1246 // we missed, find where the next vsync should be
1247 sleep = (period - ((now - next_vsync) % period));
1248 next_vsync = now + sleep;
1249 }
1250 mNextFakeVSync = next_vsync + period;
1251
1252 struct timespec spec;
1253 spec.tv_sec = next_vsync / 1000000000;
1254 spec.tv_nsec = next_vsync % 1000000000;
1255
1256 int err;
1257 do {
1258 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
1259 } while (err<0 && errno == EINTR);
1260
1261 if (err == 0) {
1262 mHwc.mEventHandler.onVSyncReceived(0, next_vsync);
1263 }
1264
1265 return true;
1266 }
1267
DisplayData()1268 HWComposer::DisplayData::DisplayData()
1269 : configs(),
1270 currentConfig(0),
1271 format(HAL_PIXEL_FORMAT_RGBA_8888),
1272 connected(false),
1273 hasFbComp(false), hasOvComp(false),
1274 capacity(0), list(NULL),
1275 framebufferTarget(NULL), fbTargetHandle(0),
1276 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE),
1277 outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE),
1278 events(0)
1279 {}
1280
~DisplayData()1281 HWComposer::DisplayData::~DisplayData() {
1282 free(list);
1283 }
1284
1285 // ---------------------------------------------------------------------------
1286 }; // namespace android
1287