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/properties.h>
43 #include <log/log.h>
44
45 #include <system/graphics.h>
46
47 #include "HWComposer.h"
48
49 #include "../Layer.h" // needed only for debugging
50 #include "../SurfaceFlinger.h"
51
52 namespace android {
53
54 #define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION
55
hwcApiVersion(const hwc_composer_device_1_t * hwc)56 static uint32_t hwcApiVersion(const hwc_composer_device_1_t* hwc) {
57 uint32_t hwcVersion = hwc->common.version;
58 return hwcVersion & HARDWARE_API_VERSION_2_MAJ_MIN_MASK;
59 }
60
hwcHeaderVersion(const hwc_composer_device_1_t * hwc)61 static uint32_t hwcHeaderVersion(const hwc_composer_device_1_t* hwc) {
62 uint32_t hwcVersion = hwc->common.version;
63 return hwcVersion & HARDWARE_API_VERSION_2_HEADER_MASK;
64 }
65
hwcHasApiVersion(const hwc_composer_device_1_t * hwc,uint32_t version)66 static bool hwcHasApiVersion(const hwc_composer_device_1_t* hwc,
67 uint32_t version) {
68 return hwcApiVersion(hwc) >= (version & HARDWARE_API_VERSION_2_MAJ_MIN_MASK);
69 }
70
71 // ---------------------------------------------------------------------------
72
73 struct HWComposer::cb_context {
74 struct callbacks : public hwc_procs_t {
75 // these are here to facilitate the transition when adding
76 // new callbacks (an implementation can check for NULL before
77 // calling a new callback).
78 void (*zero[4])(void);
79 };
80 callbacks procs;
81 HWComposer* hwc;
82 };
83
84 // ---------------------------------------------------------------------------
85
HWComposer(const sp<SurfaceFlinger> & flinger,EventHandler & handler)86 HWComposer::HWComposer(
87 const sp<SurfaceFlinger>& flinger,
88 EventHandler& handler)
89 : mFlinger(flinger),
90 mFbDev(0), mHwc(0), mNumDisplays(1),
91 mCBContext(new cb_context),
92 mEventHandler(handler),
93 mDebugForceFakeVSync(false)
94 {
95 for (size_t i =0 ; i<MAX_HWC_DISPLAYS ; i++) {
96 mLists[i] = 0;
97 }
98
99 for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) {
100 mLastHwVSync[i] = 0;
101 mVSyncCounts[i] = 0;
102 }
103
104 char value[PROPERTY_VALUE_MAX];
105 property_get("debug.sf.no_hw_vsync", value, "0");
106 mDebugForceFakeVSync = atoi(value);
107
108 bool needVSyncThread = true;
109
110 // Note: some devices may insist that the FB HAL be opened before HWC.
111 int fberr = loadFbHalModule();
112 loadHwcModule();
113
114 if (mFbDev && mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
115 // close FB HAL if we don't needed it.
116 // FIXME: this is temporary until we're not forced to open FB HAL
117 // before HWC.
118 framebuffer_close(mFbDev);
119 mFbDev = NULL;
120 }
121
122 // If we have no HWC, or a pre-1.1 HWC, an FB dev is mandatory.
123 if ((!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
124 && !mFbDev) {
125 ALOGE("ERROR: failed to open framebuffer (%s), aborting",
126 strerror(-fberr));
127 abort();
128 }
129
130 // these display IDs are always reserved
131 for (size_t i=0 ; i<NUM_BUILTIN_DISPLAYS ; i++) {
132 mAllocatedDisplayIDs.markBit(i);
133 }
134
135 if (mHwc) {
136 ALOGI("Using %s version %u.%u", HWC_HARDWARE_COMPOSER,
137 (hwcApiVersion(mHwc) >> 24) & 0xff,
138 (hwcApiVersion(mHwc) >> 16) & 0xff);
139 if (mHwc->registerProcs) {
140 mCBContext->hwc = this;
141 mCBContext->procs.invalidate = &hook_invalidate;
142 mCBContext->procs.vsync = &hook_vsync;
143 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
144 mCBContext->procs.hotplug = &hook_hotplug;
145 else
146 mCBContext->procs.hotplug = NULL;
147 memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
148 mHwc->registerProcs(mHwc, &mCBContext->procs);
149 }
150
151 // don't need a vsync thread if we have a hardware composer
152 needVSyncThread = false;
153 // always turn vsync off when we start
154 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
155
156 // the number of displays we actually have depends on the
157 // hw composer version
158 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
159 // 1.3 adds support for virtual displays
160 mNumDisplays = MAX_HWC_DISPLAYS;
161 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
162 // 1.1 adds support for multiple displays
163 mNumDisplays = NUM_BUILTIN_DISPLAYS;
164 } else {
165 mNumDisplays = 1;
166 }
167 }
168
169 if (mFbDev) {
170 ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)),
171 "should only have fbdev if no hwc or hwc is 1.0");
172
173 DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
174 disp.connected = true;
175 disp.format = mFbDev->format;
176 DisplayConfig config = DisplayConfig();
177 config.width = mFbDev->width;
178 config.height = mFbDev->height;
179 config.xdpi = mFbDev->xdpi;
180 config.ydpi = mFbDev->ydpi;
181 config.refresh = nsecs_t(1e9 / mFbDev->fps);
182 disp.configs.push_back(config);
183 disp.currentConfig = 0;
184 } else if (mHwc) {
185 // here we're guaranteed to have at least HWC 1.1
186 for (size_t i =0 ; i<NUM_BUILTIN_DISPLAYS ; i++) {
187 queryDisplayProperties(i);
188 }
189 }
190
191 if (needVSyncThread) {
192 // we don't have VSYNC support, we need to fake it
193 mVSyncThread = new VSyncThread(*this);
194 }
195 }
196
~HWComposer()197 HWComposer::~HWComposer() {
198 if (mHwc) {
199 eventControl(HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);
200 }
201 if (mVSyncThread != NULL) {
202 mVSyncThread->requestExitAndWait();
203 }
204 if (mHwc) {
205 hwc_close_1(mHwc);
206 }
207 if (mFbDev) {
208 framebuffer_close(mFbDev);
209 }
210 delete mCBContext;
211 }
212
213 // Load and prepare the hardware composer module. Sets mHwc.
loadHwcModule()214 void HWComposer::loadHwcModule()
215 {
216 hw_module_t const* module;
217
218 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
219 ALOGE("%s module not found", HWC_HARDWARE_MODULE_ID);
220 return;
221 }
222
223 int err = hwc_open_1(module, &mHwc);
224 if (err) {
225 ALOGE("%s device failed to initialize (%s)",
226 HWC_HARDWARE_COMPOSER, strerror(-err));
227 return;
228 }
229
230 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_0) ||
231 hwcHeaderVersion(mHwc) < MIN_HWC_HEADER_VERSION ||
232 hwcHeaderVersion(mHwc) > HWC_HEADER_VERSION) {
233 ALOGE("%s device version %#x unsupported, will not be used",
234 HWC_HARDWARE_COMPOSER, mHwc->common.version);
235 hwc_close_1(mHwc);
236 mHwc = NULL;
237 return;
238 }
239 }
240
241 // Load and prepare the FB HAL, which uses the gralloc module. Sets mFbDev.
loadFbHalModule()242 int HWComposer::loadFbHalModule()
243 {
244 hw_module_t const* module;
245
246 int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
247 if (err != 0) {
248 ALOGE("%s module not found", GRALLOC_HARDWARE_MODULE_ID);
249 return err;
250 }
251
252 return framebuffer_open(module, &mFbDev);
253 }
254
initCheck() const255 status_t HWComposer::initCheck() const {
256 return mHwc ? NO_ERROR : NO_INIT;
257 }
258
hook_invalidate(const struct hwc_procs * procs)259 void HWComposer::hook_invalidate(const struct hwc_procs* procs) {
260 cb_context* ctx = reinterpret_cast<cb_context*>(
261 const_cast<hwc_procs_t*>(procs));
262 ctx->hwc->invalidate();
263 }
264
hook_vsync(const struct hwc_procs * procs,int disp,int64_t timestamp)265 void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp,
266 int64_t timestamp) {
267 cb_context* ctx = reinterpret_cast<cb_context*>(
268 const_cast<hwc_procs_t*>(procs));
269 ctx->hwc->vsync(disp, timestamp);
270 }
271
hook_hotplug(const struct hwc_procs * procs,int disp,int connected)272 void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
273 int connected) {
274 cb_context* ctx = reinterpret_cast<cb_context*>(
275 const_cast<hwc_procs_t*>(procs));
276 ctx->hwc->hotplug(disp, connected);
277 }
278
invalidate()279 void HWComposer::invalidate() {
280 mEventHandler.onInvalidateReceived(this);
281 }
282
vsync(int disp,int64_t timestamp)283 void HWComposer::vsync(int disp, int64_t timestamp) {
284 if (uint32_t(disp) < HWC_NUM_PHYSICAL_DISPLAY_TYPES) {
285 {
286 Mutex::Autolock _l(mLock);
287
288 // There have been reports of HWCs that signal several vsync events
289 // with the same timestamp when turning the display off and on. This
290 // is a bug in the HWC implementation, but filter the extra events
291 // out here so they don't cause havoc downstream.
292 if (timestamp == mLastHwVSync[disp]) {
293 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")",
294 timestamp);
295 return;
296 }
297
298 mLastHwVSync[disp] = timestamp;
299 }
300
301 char tag[16];
302 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp);
303 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1);
304
305 mEventHandler.onVSyncReceived(this, disp, timestamp);
306 }
307 }
308
hotplug(int disp,int connected)309 void HWComposer::hotplug(int disp, int connected) {
310 if (disp >= VIRTUAL_DISPLAY_ID_BASE) {
311 ALOGE("hotplug event received for invalid display: disp=%d connected=%d",
312 disp, connected);
313 return;
314 }
315 queryDisplayProperties(disp);
316 // Do not teardown or recreate the primary display
317 if (disp != HWC_DISPLAY_PRIMARY) {
318 mEventHandler.onHotplugReceived(this, disp, bool(connected));
319 }
320 }
321
getDefaultDensity(uint32_t width,uint32_t height)322 static float getDefaultDensity(uint32_t width, uint32_t height) {
323 // Default density is based on TVs: 1080p displays get XHIGH density,
324 // lower-resolution displays get TV density. Maybe eventually we'll need
325 // to update it for 4K displays, though hopefully those just report
326 // accurate DPI information to begin with. This is also used for virtual
327 // displays and even primary displays with older hwcomposers, so be
328 // careful about orientation.
329
330 uint32_t h = width < height ? width : height;
331 if (h >= 1080) return ACONFIGURATION_DENSITY_XHIGH;
332 else return ACONFIGURATION_DENSITY_TV;
333 }
334
335 static const uint32_t DISPLAY_ATTRIBUTES[] = {
336 HWC_DISPLAY_VSYNC_PERIOD,
337 HWC_DISPLAY_WIDTH,
338 HWC_DISPLAY_HEIGHT,
339 HWC_DISPLAY_DPI_X,
340 HWC_DISPLAY_DPI_Y,
341 HWC_DISPLAY_COLOR_TRANSFORM,
342 HWC_DISPLAY_NO_ATTRIBUTE,
343 };
344 #define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])
345
346 static const uint32_t PRE_HWC15_DISPLAY_ATTRIBUTES[] = {
347 HWC_DISPLAY_VSYNC_PERIOD,
348 HWC_DISPLAY_WIDTH,
349 HWC_DISPLAY_HEIGHT,
350 HWC_DISPLAY_DPI_X,
351 HWC_DISPLAY_DPI_Y,
352 HWC_DISPLAY_NO_ATTRIBUTE,
353 };
354
queryDisplayProperties(int disp)355 status_t HWComposer::queryDisplayProperties(int disp) {
356
357 LOG_ALWAYS_FATAL_IF(!mHwc || !hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
358
359 // use zero as default value for unspecified attributes
360 int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
361 memset(values, 0, sizeof(values));
362
363 const size_t MAX_NUM_CONFIGS = 128;
364 uint32_t configs[MAX_NUM_CONFIGS] = {0};
365 size_t numConfigs = MAX_NUM_CONFIGS;
366 status_t err = mHwc->getDisplayConfigs(mHwc, disp, configs, &numConfigs);
367 if (err != NO_ERROR) {
368 // this can happen if an unpluggable display is not connected
369 mDisplayData[disp].connected = false;
370 return err;
371 }
372
373 mDisplayData[disp].currentConfig = 0;
374 for (size_t c = 0; c < numConfigs; ++c) {
375 err = mHwc->getDisplayAttributes(mHwc, disp, configs[c],
376 DISPLAY_ATTRIBUTES, values);
377 // If this is a pre-1.5 HWC, it may not know about color transform, so
378 // try again with a smaller set of attributes
379 if (err != NO_ERROR) {
380 err = mHwc->getDisplayAttributes(mHwc, disp, configs[c],
381 PRE_HWC15_DISPLAY_ATTRIBUTES, values);
382 }
383 if (err != NO_ERROR) {
384 // we can't get this display's info. turn it off.
385 mDisplayData[disp].connected = false;
386 return err;
387 }
388
389 DisplayConfig config = DisplayConfig();
390 for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
391 switch (DISPLAY_ATTRIBUTES[i]) {
392 case HWC_DISPLAY_VSYNC_PERIOD:
393 config.refresh = nsecs_t(values[i]);
394 break;
395 case HWC_DISPLAY_WIDTH:
396 config.width = values[i];
397 break;
398 case HWC_DISPLAY_HEIGHT:
399 config.height = values[i];
400 break;
401 case HWC_DISPLAY_DPI_X:
402 config.xdpi = values[i] / 1000.0f;
403 break;
404 case HWC_DISPLAY_DPI_Y:
405 config.ydpi = values[i] / 1000.0f;
406 break;
407 case HWC_DISPLAY_COLOR_TRANSFORM:
408 config.colorMode = static_cast<android_color_mode_t>(values[i]);
409 break;
410 default:
411 ALOG_ASSERT(false, "unknown display attribute[%zu] %#x",
412 i, DISPLAY_ATTRIBUTES[i]);
413 break;
414 }
415 }
416
417 if (config.xdpi == 0.0f || config.ydpi == 0.0f) {
418 float dpi = getDefaultDensity(config.width, config.height);
419 config.xdpi = dpi;
420 config.ydpi = dpi;
421 }
422
423 mDisplayData[disp].configs.push_back(config);
424 }
425
426 // FIXME: what should we set the format to?
427 mDisplayData[disp].format = HAL_PIXEL_FORMAT_RGBA_8888;
428 mDisplayData[disp].connected = true;
429 return NO_ERROR;
430 }
431
setVirtualDisplayProperties(int32_t id,uint32_t w,uint32_t h,uint32_t format)432 status_t HWComposer::setVirtualDisplayProperties(int32_t id,
433 uint32_t w, uint32_t h, uint32_t format) {
434 if (id < VIRTUAL_DISPLAY_ID_BASE || id >= int32_t(mNumDisplays) ||
435 !mAllocatedDisplayIDs.hasBit(id)) {
436 return BAD_INDEX;
437 }
438 size_t configId = mDisplayData[id].currentConfig;
439 mDisplayData[id].format = format;
440 DisplayConfig& config = mDisplayData[id].configs.editItemAt(configId);
441 config.width = w;
442 config.height = h;
443 config.xdpi = config.ydpi = getDefaultDensity(w, h);
444 return NO_ERROR;
445 }
446
allocateDisplayId()447 int32_t HWComposer::allocateDisplayId() {
448 if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
449 return NO_MEMORY;
450 }
451 int32_t id = mAllocatedDisplayIDs.firstUnmarkedBit();
452 mAllocatedDisplayIDs.markBit(id);
453 mDisplayData[id].connected = true;
454 mDisplayData[id].configs.resize(1);
455 mDisplayData[id].currentConfig = 0;
456 return id;
457 }
458
freeDisplayId(int32_t id)459 status_t HWComposer::freeDisplayId(int32_t id) {
460 if (id < NUM_BUILTIN_DISPLAYS) {
461 // cannot free the reserved IDs
462 return BAD_VALUE;
463 }
464 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
465 return BAD_INDEX;
466 }
467 mAllocatedDisplayIDs.clearBit(id);
468 mDisplayData[id].connected = false;
469 return NO_ERROR;
470 }
471
getRefreshTimestamp(int disp) const472 nsecs_t HWComposer::getRefreshTimestamp(int disp) const {
473 // this returns the last refresh timestamp.
474 // if the last one is not available, we estimate it based on
475 // the refresh period and whatever closest timestamp we have.
476 Mutex::Autolock _l(mLock);
477 nsecs_t now = systemTime(CLOCK_MONOTONIC);
478 size_t configId = mDisplayData[disp].currentConfig;
479 return now - ((now - mLastHwVSync[disp]) %
480 mDisplayData[disp].configs[configId].refresh);
481 }
482
getDisplayFence(int disp) const483 sp<Fence> HWComposer::getDisplayFence(int disp) const {
484 return mDisplayData[disp].lastDisplayFence;
485 }
486
getFormat(int disp) const487 uint32_t HWComposer::getFormat(int disp) const {
488 if (static_cast<uint32_t>(disp) >= MAX_HWC_DISPLAYS || !mAllocatedDisplayIDs.hasBit(disp)) {
489 return HAL_PIXEL_FORMAT_RGBA_8888;
490 } else {
491 return mDisplayData[disp].format;
492 }
493 }
494
isConnected(int disp) const495 bool HWComposer::isConnected(int disp) const {
496 return mDisplayData[disp].connected;
497 }
498
getWidth(int disp) const499 uint32_t HWComposer::getWidth(int disp) const {
500 size_t currentConfig = mDisplayData[disp].currentConfig;
501 return mDisplayData[disp].configs[currentConfig].width;
502 }
503
getHeight(int disp) const504 uint32_t HWComposer::getHeight(int disp) const {
505 size_t currentConfig = mDisplayData[disp].currentConfig;
506 return mDisplayData[disp].configs[currentConfig].height;
507 }
508
getDpiX(int disp) const509 float HWComposer::getDpiX(int disp) const {
510 size_t currentConfig = mDisplayData[disp].currentConfig;
511 return mDisplayData[disp].configs[currentConfig].xdpi;
512 }
513
getDpiY(int disp) const514 float HWComposer::getDpiY(int disp) const {
515 size_t currentConfig = mDisplayData[disp].currentConfig;
516 return mDisplayData[disp].configs[currentConfig].ydpi;
517 }
518
getRefreshPeriod(int disp) const519 nsecs_t HWComposer::getRefreshPeriod(int disp) const {
520 size_t currentConfig = mDisplayData[disp].currentConfig;
521 return mDisplayData[disp].configs[currentConfig].refresh;
522 }
523
getColorMode(int disp) const524 android_color_mode_t HWComposer::getColorMode(int disp) const {
525 size_t currentConfig = mDisplayData[disp].currentConfig;
526 return mDisplayData[disp].configs[currentConfig].colorMode;
527 }
528
getConfigs(int disp) const529 const Vector<HWComposer::DisplayConfig>& HWComposer::getConfigs(int disp) const {
530 return mDisplayData[disp].configs;
531 }
532
getCurrentConfig(int disp) const533 size_t HWComposer::getCurrentConfig(int disp) const {
534 return mDisplayData[disp].currentConfig;
535 }
536
eventControl(int disp,int event,int enabled)537 void HWComposer::eventControl(int disp, int event, int enabled) {
538 if (uint32_t(disp)>31 || !mAllocatedDisplayIDs.hasBit(disp)) {
539 ALOGD("eventControl ignoring event %d on unallocated disp %d (en=%d)",
540 event, disp, enabled);
541 return;
542 }
543 if (event != EVENT_VSYNC) {
544 ALOGW("eventControl got unexpected event %d (disp=%d en=%d)",
545 event, disp, enabled);
546 return;
547 }
548 status_t err = NO_ERROR;
549 if (mHwc && !mDebugForceFakeVSync) {
550 // NOTE: we use our own internal lock here because we have to call
551 // into the HWC with the lock held, and we want to make sure
552 // that even if HWC blocks (which it shouldn't), it won't
553 // affect other threads.
554 Mutex::Autolock _l(mEventControlLock);
555 const int32_t eventBit = 1UL << event;
556 const int32_t newValue = enabled ? eventBit : 0;
557 const int32_t oldValue = mDisplayData[disp].events & eventBit;
558 if (newValue != oldValue) {
559 ATRACE_CALL();
560 err = mHwc->eventControl(mHwc, disp, event, enabled);
561 if (!err) {
562 int32_t& events(mDisplayData[disp].events);
563 events = (events & ~eventBit) | newValue;
564
565 char tag[16];
566 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", disp);
567 ATRACE_INT(tag, enabled);
568 }
569 }
570 // error here should not happen -- not sure what we should
571 // do if it does.
572 ALOGE_IF(err, "eventControl(%d, %d) failed %s",
573 event, enabled, strerror(-err));
574 }
575
576 if (err == NO_ERROR && mVSyncThread != NULL) {
577 mVSyncThread->setEnabled(enabled);
578 }
579 }
580
createWorkList(int32_t id,size_t numLayers)581 status_t HWComposer::createWorkList(int32_t id, size_t numLayers) {
582 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
583 return BAD_INDEX;
584 }
585
586 if (mHwc) {
587 DisplayData& disp(mDisplayData[id]);
588 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
589 // we need space for the HWC_FRAMEBUFFER_TARGET
590 numLayers++;
591 }
592 if (disp.capacity < numLayers || disp.list == NULL) {
593 size_t size = sizeof(hwc_display_contents_1_t)
594 + numLayers * sizeof(hwc_layer_1_t);
595 free(disp.list);
596 disp.list = (hwc_display_contents_1_t*)malloc(size);
597 disp.capacity = numLayers;
598 }
599 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
600 disp.framebufferTarget = &disp.list->hwLayers[numLayers - 1];
601 memset(disp.framebufferTarget, 0, sizeof(hwc_layer_1_t));
602 const DisplayConfig& currentConfig =
603 disp.configs[disp.currentConfig];
604 const hwc_rect_t r = { 0, 0,
605 (int) currentConfig.width, (int) currentConfig.height };
606 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
607 disp.framebufferTarget->hints = 0;
608 disp.framebufferTarget->flags = 0;
609 disp.framebufferTarget->handle = disp.fbTargetHandle;
610 disp.framebufferTarget->transform = 0;
611 disp.framebufferTarget->blending = HWC_BLENDING_PREMULT;
612 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
613 disp.framebufferTarget->sourceCropf.left = 0;
614 disp.framebufferTarget->sourceCropf.top = 0;
615 disp.framebufferTarget->sourceCropf.right =
616 currentConfig.width;
617 disp.framebufferTarget->sourceCropf.bottom =
618 currentConfig.height;
619 } else {
620 disp.framebufferTarget->sourceCrop = r;
621 }
622 disp.framebufferTarget->displayFrame = r;
623 disp.framebufferTarget->visibleRegionScreen.numRects = 1;
624 disp.framebufferTarget->visibleRegionScreen.rects =
625 &disp.framebufferTarget->displayFrame;
626 disp.framebufferTarget->acquireFenceFd = -1;
627 disp.framebufferTarget->releaseFenceFd = -1;
628 disp.framebufferTarget->planeAlpha = 0xFF;
629 }
630 disp.list->retireFenceFd = -1;
631 disp.list->flags = HWC_GEOMETRY_CHANGED;
632 disp.list->numHwLayers = numLayers;
633 }
634 return NO_ERROR;
635 }
636
setFramebufferTarget(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buf)637 status_t HWComposer::setFramebufferTarget(int32_t id,
638 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buf) {
639 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
640 return BAD_INDEX;
641 }
642 DisplayData& disp(mDisplayData[id]);
643 if (!disp.framebufferTarget) {
644 // this should never happen, but apparently eglCreateWindowSurface()
645 // triggers a Surface::queueBuffer() on some
646 // devices (!?) -- log and ignore.
647 ALOGE("HWComposer: framebufferTarget is null");
648 return NO_ERROR;
649 }
650
651 int acquireFenceFd = -1;
652 if (acquireFence->isValid()) {
653 acquireFenceFd = acquireFence->dup();
654 }
655
656 // ALOGD("fbPost: handle=%p, fence=%d", buf->handle, acquireFenceFd);
657 disp.fbTargetHandle = buf->handle;
658 disp.framebufferTarget->handle = disp.fbTargetHandle;
659 disp.framebufferTarget->acquireFenceFd = acquireFenceFd;
660 return NO_ERROR;
661 }
662
prepare()663 status_t HWComposer::prepare() {
664 Mutex::Autolock _l(mDisplayLock);
665 for (size_t i=0 ; i<mNumDisplays ; i++) {
666 DisplayData& disp(mDisplayData[i]);
667 if (disp.framebufferTarget) {
668 // make sure to reset the type to HWC_FRAMEBUFFER_TARGET
669 // DO NOT reset the handle field to NULL, because it's possible
670 // that we have nothing to redraw (eg: eglSwapBuffers() not called)
671 // in which case, we should continue to use the same buffer.
672 LOG_FATAL_IF(disp.list == NULL);
673 disp.framebufferTarget->compositionType = HWC_FRAMEBUFFER_TARGET;
674 }
675 if (!disp.connected && disp.list != NULL) {
676 ALOGW("WARNING: disp %zu: connected, non-null list, layers=%zu",
677 i, disp.list->numHwLayers);
678 }
679 mLists[i] = disp.list;
680 if (mLists[i]) {
681 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
682 mLists[i]->outbuf = disp.outbufHandle;
683 mLists[i]->outbufAcquireFenceFd = -1;
684 } else if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
685 // garbage data to catch improper use
686 mLists[i]->dpy = (hwc_display_t)0xDEADBEEF;
687 mLists[i]->sur = (hwc_surface_t)0xDEADBEEF;
688 } else {
689 mLists[i]->dpy = EGL_NO_DISPLAY;
690 mLists[i]->sur = EGL_NO_SURFACE;
691 }
692 }
693 }
694
695 int err = mHwc->prepare(mHwc, mNumDisplays, mLists);
696 ALOGE_IF(err, "HWComposer: prepare failed (%s)", strerror(-err));
697
698 if (err == NO_ERROR) {
699 // here we're just making sure that "skip" layers are set
700 // to HWC_FRAMEBUFFER and we're also counting how many layers
701 // we have of each type.
702 //
703 // If there are no window layers, we treat the display has having FB
704 // composition, because SurfaceFlinger will use GLES to draw the
705 // wormhole region.
706 for (size_t i=0 ; i<mNumDisplays ; i++) {
707 DisplayData& disp(mDisplayData[i]);
708 disp.hasFbComp = false;
709 disp.hasOvComp = false;
710 if (disp.list) {
711 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
712 hwc_layer_1_t& l = disp.list->hwLayers[i];
713
714 //ALOGD("prepare: %d, type=%d, handle=%p",
715 // i, l.compositionType, l.handle);
716
717 if (l.flags & HWC_SKIP_LAYER) {
718 l.compositionType = HWC_FRAMEBUFFER;
719 }
720 if (l.compositionType == HWC_FRAMEBUFFER) {
721 disp.hasFbComp = true;
722 }
723 if (l.compositionType == HWC_OVERLAY) {
724 disp.hasOvComp = true;
725 }
726 if (l.compositionType == HWC_CURSOR_OVERLAY) {
727 disp.hasOvComp = true;
728 }
729 }
730 if (disp.list->numHwLayers == (disp.framebufferTarget ? 1 : 0)) {
731 disp.hasFbComp = true;
732 }
733 } else {
734 disp.hasFbComp = true;
735 }
736 }
737 }
738 return (status_t)err;
739 }
740
hasHwcComposition(int32_t id) const741 bool HWComposer::hasHwcComposition(int32_t id) const {
742 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
743 return false;
744 return mDisplayData[id].hasOvComp;
745 }
746
hasGlesComposition(int32_t id) const747 bool HWComposer::hasGlesComposition(int32_t id) const {
748 if (!mHwc || uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
749 return true;
750 return mDisplayData[id].hasFbComp;
751 }
752
getAndResetReleaseFence(int32_t id)753 sp<Fence> HWComposer::getAndResetReleaseFence(int32_t id) {
754 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
755 return Fence::NO_FENCE;
756
757 int fd = INVALID_OPERATION;
758 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
759 const DisplayData& disp(mDisplayData[id]);
760 if (disp.framebufferTarget) {
761 fd = disp.framebufferTarget->releaseFenceFd;
762 disp.framebufferTarget->acquireFenceFd = -1;
763 disp.framebufferTarget->releaseFenceFd = -1;
764 }
765 }
766 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
767 }
768
commit()769 status_t HWComposer::commit() {
770 int err = NO_ERROR;
771 if (mHwc) {
772 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
773 // On version 1.0, the OpenGL ES target surface is communicated
774 // by the (dpy, sur) fields and we are guaranteed to have only
775 // a single display.
776 mLists[0]->dpy = eglGetCurrentDisplay();
777 mLists[0]->sur = eglGetCurrentSurface(EGL_DRAW);
778 }
779
780 for (size_t i=VIRTUAL_DISPLAY_ID_BASE; i<mNumDisplays; i++) {
781 DisplayData& disp(mDisplayData[i]);
782 if (disp.outbufHandle) {
783 mLists[i]->outbuf = disp.outbufHandle;
784 mLists[i]->outbufAcquireFenceFd =
785 disp.outbufAcquireFence->dup();
786 }
787 }
788
789 err = mHwc->set(mHwc, mNumDisplays, mLists);
790
791 for (size_t i=0 ; i<mNumDisplays ; i++) {
792 DisplayData& disp(mDisplayData[i]);
793 disp.lastDisplayFence = disp.lastRetireFence;
794 disp.lastRetireFence = Fence::NO_FENCE;
795 if (disp.list) {
796 if (disp.list->retireFenceFd != -1) {
797 disp.lastRetireFence = new Fence(disp.list->retireFenceFd);
798 disp.list->retireFenceFd = -1;
799 }
800 disp.list->flags &= ~HWC_GEOMETRY_CHANGED;
801 }
802 }
803 }
804 return (status_t)err;
805 }
806
setPowerMode(int disp,int mode)807 status_t HWComposer::setPowerMode(int disp, int mode) {
808 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
809 if (mHwc) {
810 if (mode == HWC_POWER_MODE_OFF) {
811 eventControl(disp, HWC_EVENT_VSYNC, 0);
812 }
813 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
814 return (status_t)mHwc->setPowerMode(mHwc, disp, mode);
815 } else {
816 return (status_t)mHwc->blank(mHwc, disp,
817 mode == HWC_POWER_MODE_OFF ? 1 : 0);
818 }
819 }
820 return NO_ERROR;
821 }
822
setActiveConfig(int disp,int mode)823 status_t HWComposer::setActiveConfig(int disp, int mode) {
824 LOG_FATAL_IF(disp >= VIRTUAL_DISPLAY_ID_BASE);
825 DisplayData& dd(mDisplayData[disp]);
826 dd.currentConfig = mode;
827 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
828 return (status_t)mHwc->setActiveConfig(mHwc, disp, mode);
829 } else {
830 LOG_FATAL_IF(mode != 0);
831 }
832 return NO_ERROR;
833 }
834
disconnectDisplay(int disp)835 void HWComposer::disconnectDisplay(int disp) {
836 LOG_ALWAYS_FATAL_IF(disp < 0 || disp == HWC_DISPLAY_PRIMARY);
837 DisplayData& dd(mDisplayData[disp]);
838 free(dd.list);
839 dd.list = NULL;
840 dd.framebufferTarget = NULL; // points into dd.list
841 dd.fbTargetHandle = NULL;
842 dd.outbufHandle = NULL;
843 dd.lastRetireFence = Fence::NO_FENCE;
844 dd.lastDisplayFence = Fence::NO_FENCE;
845 dd.outbufAcquireFence = Fence::NO_FENCE;
846 // clear all the previous configs and repopulate when a new
847 // device is added
848 dd.configs.clear();
849 }
850
getVisualID() const851 int HWComposer::getVisualID() const {
852 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
853 // FIXME: temporary hack until HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
854 // is supported by the implementation. we can only be in this case
855 // if we have HWC 1.1
856 return HAL_PIXEL_FORMAT_RGBA_8888;
857 //return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
858 } else {
859 return mFbDev->format;
860 }
861 }
862
supportsFramebufferTarget() const863 bool HWComposer::supportsFramebufferTarget() const {
864 return (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));
865 }
866
fbPost(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buffer)867 int HWComposer::fbPost(int32_t id,
868 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) {
869 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
870 return setFramebufferTarget(id, acquireFence, buffer);
871 } else {
872 acquireFence->waitForever("HWComposer::fbPost");
873 return mFbDev->post(mFbDev, buffer->handle);
874 }
875 }
876
fbCompositionComplete()877 int HWComposer::fbCompositionComplete() {
878 if (mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
879 return NO_ERROR;
880
881 if (mFbDev->compositionComplete) {
882 return mFbDev->compositionComplete(mFbDev);
883 } else {
884 return INVALID_OPERATION;
885 }
886 }
887
fbDump(String8 & result)888 void HWComposer::fbDump(String8& result) {
889 if (mFbDev && mFbDev->common.version >= 1 && mFbDev->dump) {
890 const size_t SIZE = 4096;
891 char buffer[SIZE];
892 mFbDev->dump(mFbDev, buffer, SIZE);
893 result.append(buffer);
894 }
895 }
896
setOutputBuffer(int32_t id,const sp<Fence> & acquireFence,const sp<GraphicBuffer> & buf)897 status_t HWComposer::setOutputBuffer(int32_t id, const sp<Fence>& acquireFence,
898 const sp<GraphicBuffer>& buf) {
899 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
900 return BAD_INDEX;
901 if (id < VIRTUAL_DISPLAY_ID_BASE)
902 return INVALID_OPERATION;
903
904 DisplayData& disp(mDisplayData[id]);
905 disp.outbufHandle = buf->handle;
906 disp.outbufAcquireFence = acquireFence;
907 return NO_ERROR;
908 }
909
getLastRetireFence(int32_t id) const910 sp<Fence> HWComposer::getLastRetireFence(int32_t id) const {
911 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id))
912 return Fence::NO_FENCE;
913 return mDisplayData[id].lastRetireFence;
914 }
915
setCursorPositionAsync(int32_t id,const Rect & pos)916 status_t HWComposer::setCursorPositionAsync(int32_t id, const Rect& pos)
917 {
918 if (mHwc->setCursorPositionAsync) {
919 return (status_t)mHwc->setCursorPositionAsync(mHwc, id, pos.left, pos.top);
920 }
921 else {
922 return NO_ERROR;
923 }
924 }
925
926 /*
927 * Helper template to implement a concrete HWCLayer
928 * This holds the pointer to the concrete hwc layer type
929 * and implements the "iterable" side of HWCLayer.
930 */
931 template<typename CONCRETE, typename HWCTYPE>
932 class Iterable : public HWComposer::HWCLayer {
933 protected:
934 HWCTYPE* const mLayerList;
935 HWCTYPE* mCurrentLayer;
Iterable(HWCTYPE * layer)936 explicit Iterable(HWCTYPE* layer) : mLayerList(layer), mCurrentLayer(layer),
937 mIndex(0) { }
getLayer() const938 inline HWCTYPE const * getLayer() const { return mCurrentLayer; }
getLayer()939 inline HWCTYPE* getLayer() { return mCurrentLayer; }
~Iterable()940 virtual ~Iterable() { }
941 size_t mIndex;
942 private:
943 // returns a copy of ourselves
dup()944 virtual HWComposer::HWCLayer* dup() {
945 return new CONCRETE( static_cast<const CONCRETE&>(*this) );
946 }
setLayer(size_t index)947 virtual status_t setLayer(size_t index) {
948 mIndex = index;
949 mCurrentLayer = &mLayerList[index];
950 return NO_ERROR;
951 }
952 };
953
954 /*
955 * Concrete implementation of HWCLayer for HWC_DEVICE_API_VERSION_1_0.
956 * This implements the HWCLayer side of HWCIterableLayer.
957 */
958 class HWCLayerVersion1 : public Iterable<HWCLayerVersion1, hwc_layer_1_t> {
959 struct hwc_composer_device_1* mHwc;
960 public:
HWCLayerVersion1(struct hwc_composer_device_1 * hwc,hwc_layer_1_t * layer,Vector<Region> * visibleRegions,Vector<Region> * surfaceDamageRegions)961 HWCLayerVersion1(struct hwc_composer_device_1* hwc, hwc_layer_1_t* layer,
962 Vector<Region>* visibleRegions,
963 Vector<Region>* surfaceDamageRegions)
964 : Iterable<HWCLayerVersion1, hwc_layer_1_t>(layer), mHwc(hwc),
965 mVisibleRegions(visibleRegions),
966 mSurfaceDamageRegions(surfaceDamageRegions) {}
967
getCompositionType() const968 virtual int32_t getCompositionType() const {
969 return getLayer()->compositionType;
970 }
getHints() const971 virtual uint32_t getHints() const {
972 return getLayer()->hints;
973 }
getAndResetReleaseFence()974 virtual sp<Fence> getAndResetReleaseFence() {
975 int fd = getLayer()->releaseFenceFd;
976 getLayer()->releaseFenceFd = -1;
977 return fd >= 0 ? new Fence(fd) : Fence::NO_FENCE;
978 }
setAcquireFenceFd(int fenceFd)979 virtual void setAcquireFenceFd(int fenceFd) {
980 getLayer()->acquireFenceFd = fenceFd;
981 }
setPerFrameDefaultState()982 virtual void setPerFrameDefaultState() {
983 //getLayer()->compositionType = HWC_FRAMEBUFFER;
984 }
setPlaneAlpha(uint8_t alpha)985 virtual void setPlaneAlpha(uint8_t alpha) {
986 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_2)) {
987 getLayer()->planeAlpha = alpha;
988 } else {
989 if (alpha < 0xFF) {
990 getLayer()->flags |= HWC_SKIP_LAYER;
991 }
992 }
993 }
setDefaultState()994 virtual void setDefaultState() {
995 hwc_layer_1_t* const l = getLayer();
996 l->compositionType = HWC_FRAMEBUFFER;
997 l->hints = 0;
998 l->flags = HWC_SKIP_LAYER;
999 l->handle = 0;
1000 l->transform = 0;
1001 l->blending = HWC_BLENDING_NONE;
1002 l->visibleRegionScreen.numRects = 0;
1003 l->visibleRegionScreen.rects = NULL;
1004 l->acquireFenceFd = -1;
1005 l->releaseFenceFd = -1;
1006 l->planeAlpha = 0xFF;
1007 }
setSkip(bool skip)1008 virtual void setSkip(bool skip) {
1009 if (skip) {
1010 getLayer()->flags |= HWC_SKIP_LAYER;
1011 } else {
1012 getLayer()->flags &= ~HWC_SKIP_LAYER;
1013 }
1014 }
setIsCursorLayerHint(bool isCursor)1015 virtual void setIsCursorLayerHint(bool isCursor) {
1016 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_4)) {
1017 if (isCursor) {
1018 getLayer()->flags |= HWC_IS_CURSOR_LAYER;
1019 }
1020 else {
1021 getLayer()->flags &= ~HWC_IS_CURSOR_LAYER;
1022 }
1023 }
1024 }
setBlending(uint32_t blending)1025 virtual void setBlending(uint32_t blending) {
1026 getLayer()->blending = blending;
1027 }
setTransform(uint32_t transform)1028 virtual void setTransform(uint32_t transform) {
1029 getLayer()->transform = transform;
1030 }
setFrame(const Rect & frame)1031 virtual void setFrame(const Rect& frame) {
1032 getLayer()->displayFrame = reinterpret_cast<hwc_rect_t const&>(frame);
1033 }
setCrop(const FloatRect & crop)1034 virtual void setCrop(const FloatRect& crop) {
1035 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
1036 getLayer()->sourceCropf = reinterpret_cast<hwc_frect_t const&>(crop);
1037 } else {
1038 /*
1039 * Since h/w composer didn't support a flot crop rect before version 1.3,
1040 * using integer coordinates instead produces a different output from the GL code in
1041 * Layer::drawWithOpenGL(). The difference can be large if the buffer crop to
1042 * window size ratio is large and a window crop is defined
1043 * (i.e.: if we scale the buffer a lot and we also crop it with a window crop).
1044 */
1045 hwc_rect_t& r = getLayer()->sourceCrop;
1046 r.left = int(ceilf(crop.left));
1047 r.top = int(ceilf(crop.top));
1048 r.right = int(floorf(crop.right));
1049 r.bottom= int(floorf(crop.bottom));
1050 }
1051 }
setVisibleRegionScreen(const Region & reg)1052 virtual void setVisibleRegionScreen(const Region& reg) {
1053 hwc_region_t& visibleRegion = getLayer()->visibleRegionScreen;
1054 mVisibleRegions->editItemAt(mIndex) = reg;
1055 visibleRegion.rects = reinterpret_cast<hwc_rect_t const *>(
1056 mVisibleRegions->itemAt(mIndex).getArray(
1057 &visibleRegion.numRects));
1058 }
setSurfaceDamage(const Region & reg)1059 virtual void setSurfaceDamage(const Region& reg) {
1060 if (!hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_5)) {
1061 return;
1062 }
1063 hwc_region_t& surfaceDamage = getLayer()->surfaceDamage;
1064 // We encode default full-screen damage as INVALID_RECT upstream, but as
1065 // 0 rects for HWComposer
1066 if (reg.isRect() && reg.getBounds() == Rect::INVALID_RECT) {
1067 surfaceDamage.numRects = 0;
1068 surfaceDamage.rects = NULL;
1069 return;
1070 }
1071 mSurfaceDamageRegions->editItemAt(mIndex) = reg;
1072 surfaceDamage.rects = reinterpret_cast<hwc_rect_t const *>(
1073 mSurfaceDamageRegions->itemAt(mIndex).getArray(
1074 &surfaceDamage.numRects));
1075 }
setSidebandStream(const sp<NativeHandle> & stream)1076 virtual void setSidebandStream(const sp<NativeHandle>& stream) {
1077 ALOG_ASSERT(stream->handle() != NULL);
1078 getLayer()->compositionType = HWC_SIDEBAND;
1079 getLayer()->sidebandStream = stream->handle();
1080 }
setBuffer(const sp<GraphicBuffer> & buffer)1081 virtual void setBuffer(const sp<GraphicBuffer>& buffer) {
1082 if (buffer == 0 || buffer->handle == 0) {
1083 getLayer()->compositionType = HWC_FRAMEBUFFER;
1084 getLayer()->flags |= HWC_SKIP_LAYER;
1085 getLayer()->handle = 0;
1086 } else {
1087 if (getLayer()->compositionType == HWC_SIDEBAND) {
1088 // If this was a sideband layer but the stream was removed, reset
1089 // it to FRAMEBUFFER. The HWC can change it to OVERLAY in prepare.
1090 getLayer()->compositionType = HWC_FRAMEBUFFER;
1091 }
1092 getLayer()->handle = buffer->handle;
1093 }
1094 }
onDisplayed()1095 virtual void onDisplayed() {
1096 getLayer()->acquireFenceFd = -1;
1097 }
1098
1099 protected:
1100 // Pointers to the vectors of Region backing-memory held in DisplayData.
1101 // Only the Region at mIndex corresponds to this Layer.
1102 Vector<Region>* mVisibleRegions;
1103 Vector<Region>* mSurfaceDamageRegions;
1104 };
1105
1106 /*
1107 * returns an iterator initialized at a given index in the layer list
1108 */
getLayerIterator(int32_t id,size_t index)1109 HWComposer::LayerListIterator HWComposer::getLayerIterator(int32_t id, size_t index) {
1110 if (uint32_t(id)>31 || !mAllocatedDisplayIDs.hasBit(id)) {
1111 return LayerListIterator();
1112 }
1113 DisplayData& disp(mDisplayData[id]);
1114 if (!mHwc || !disp.list || index > disp.list->numHwLayers) {
1115 return LayerListIterator();
1116 }
1117 if (disp.visibleRegions.size() < disp.list->numHwLayers) {
1118 disp.visibleRegions.resize(disp.list->numHwLayers);
1119 }
1120 if (disp.surfaceDamageRegions.size() < disp.list->numHwLayers) {
1121 disp.surfaceDamageRegions.resize(disp.list->numHwLayers);
1122 }
1123 return LayerListIterator(new HWCLayerVersion1(mHwc, disp.list->hwLayers,
1124 &disp.visibleRegions, &disp.surfaceDamageRegions), index);
1125 }
1126
1127 /*
1128 * returns an iterator on the beginning of the layer list
1129 */
begin(int32_t id)1130 HWComposer::LayerListIterator HWComposer::begin(int32_t id) {
1131 return getLayerIterator(id, 0);
1132 }
1133
1134 /*
1135 * returns an iterator on the end of the layer list
1136 */
end(int32_t id)1137 HWComposer::LayerListIterator HWComposer::end(int32_t id) {
1138 size_t numLayers = 0;
1139 if (uint32_t(id) <= 31 && mAllocatedDisplayIDs.hasBit(id)) {
1140 const DisplayData& disp(mDisplayData[id]);
1141 if (mHwc && disp.list) {
1142 numLayers = disp.list->numHwLayers;
1143 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)) {
1144 // with HWC 1.1, the last layer is always the HWC_FRAMEBUFFER_TARGET,
1145 // which we ignore when iterating through the layer list.
1146 ALOGE_IF(!numLayers, "mDisplayData[%d].list->numHwLayers is 0", id);
1147 if (numLayers) {
1148 numLayers--;
1149 }
1150 }
1151 }
1152 }
1153 return getLayerIterator(id, numLayers);
1154 }
1155
1156 // Converts a PixelFormat to a human-readable string. Max 11 chars.
1157 // (Could use a table of prefab String8 objects.)
getFormatStr(PixelFormat format)1158 static String8 getFormatStr(PixelFormat format) {
1159 switch (format) {
1160 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888");
1161 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888");
1162 case PIXEL_FORMAT_RGBA_FP16: return String8("RGBA_FP16");
1163 case PIXEL_FORMAT_RGBA_1010102: return String8("RGBA_1010102");
1164 case PIXEL_FORMAT_RGB_888: return String8("RGB_888");
1165 case PIXEL_FORMAT_RGB_565: return String8("RGB_565");
1166 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888");
1167 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
1168 return String8("ImplDef");
1169 default:
1170 String8 result;
1171 result.appendFormat("? %08x", format);
1172 return result;
1173 }
1174 }
1175
dump(String8 & result) const1176 void HWComposer::dump(String8& result) const {
1177 Mutex::Autolock _l(mDisplayLock);
1178 if (mHwc) {
1179 result.appendFormat("Hardware Composer state (version %08x):\n", hwcApiVersion(mHwc));
1180 result.appendFormat(" mDebugForceFakeVSync=%d\n", mDebugForceFakeVSync);
1181 for (size_t i=0 ; i<mNumDisplays ; i++) {
1182 const DisplayData& disp(mDisplayData[i]);
1183 if (!disp.connected)
1184 continue;
1185
1186 const Vector< sp<Layer> >& visibleLayersSortedByZ =
1187 mFlinger->getLayerSortedByZForHwcDisplay(i);
1188
1189
1190 result.appendFormat(" Display[%zd] configurations (* current):\n", i);
1191 for (size_t c = 0; c < disp.configs.size(); ++c) {
1192 const DisplayConfig& config(disp.configs[c]);
1193 result.appendFormat(" %s%zd: %ux%u, xdpi=%f, ydpi=%f"
1194 ", refresh=%" PRId64 ", colorMode=%d\n",
1195 c == disp.currentConfig ? "* " : "", c,
1196 config.width, config.height, config.xdpi, config.ydpi,
1197 config.refresh, config.colorMode);
1198 }
1199
1200 if (disp.list) {
1201 result.appendFormat(
1202 " numHwLayers=%zu, flags=%08x\n",
1203 disp.list->numHwLayers, disp.list->flags);
1204
1205 result.append(
1206 " type | handle | hint | flag | tr | blnd | format | source crop (l,t,r,b) | frame | name \n"
1207 "-----------+----------+------+------+----+------+-------------+--------------------------------+------------------------+------\n");
1208 // " _________ | ________ | ____ | ____ | __ | ____ | ___________ |_____._,_____._,_____._,_____._ |_____,_____,_____,_____ | ___...
1209 for (size_t i=0 ; i<disp.list->numHwLayers ; i++) {
1210 const hwc_layer_1_t&l = disp.list->hwLayers[i];
1211 int32_t format = -1;
1212 String8 name("unknown");
1213
1214 if (i < visibleLayersSortedByZ.size()) {
1215 const sp<Layer>& layer(visibleLayersSortedByZ[i]);
1216 const sp<GraphicBuffer>& buffer(
1217 layer->getActiveBuffer());
1218 if (buffer != NULL) {
1219 format = buffer->getPixelFormat();
1220 }
1221 name = layer->getName();
1222 }
1223
1224 int type = l.compositionType;
1225 if (type == HWC_FRAMEBUFFER_TARGET) {
1226 name = "HWC_FRAMEBUFFER_TARGET";
1227 format = disp.format;
1228 }
1229
1230 static char const* compositionTypeName[] = {
1231 "GLES",
1232 "HWC",
1233 "BKGND",
1234 "FB TARGET",
1235 "SIDEBAND",
1236 "HWC_CURSOR",
1237 "UNKNOWN"};
1238 if (type >= NELEM(compositionTypeName))
1239 type = NELEM(compositionTypeName) - 1;
1240
1241 String8 formatStr = getFormatStr(format);
1242 if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_3)) {
1243 result.appendFormat(
1244 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7.1f,%7.1f,%7.1f,%7.1f |%5d,%5d,%5d,%5d | %s\n",
1245 compositionTypeName[type],
1246 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(),
1247 l.sourceCropf.left, l.sourceCropf.top, l.sourceCropf.right, l.sourceCropf.bottom,
1248 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1249 name.string());
1250 } else {
1251 result.appendFormat(
1252 " %9s | %08" PRIxPTR " | %04x | %04x | %02x | %04x | %-11s |%7d,%7d,%7d,%7d |%5d,%5d,%5d,%5d | %s\n",
1253 compositionTypeName[type],
1254 intptr_t(l.handle), l.hints, l.flags, l.transform, l.blending, formatStr.string(),
1255 l.sourceCrop.left, l.sourceCrop.top, l.sourceCrop.right, l.sourceCrop.bottom,
1256 l.displayFrame.left, l.displayFrame.top, l.displayFrame.right, l.displayFrame.bottom,
1257 name.string());
1258 }
1259 }
1260 }
1261 }
1262 }
1263
1264 if (mHwc && mHwc->dump) {
1265 const size_t SIZE = 4096;
1266 char buffer[SIZE];
1267 mHwc->dump(mHwc, buffer, SIZE);
1268 result.append(buffer);
1269 }
1270 }
1271
1272 // ---------------------------------------------------------------------------
1273
VSyncThread(HWComposer & hwc)1274 HWComposer::VSyncThread::VSyncThread(HWComposer& hwc)
1275 : mHwc(hwc), mEnabled(false),
1276 mNextFakeVSync(0),
1277 mRefreshPeriod(hwc.getRefreshPeriod(HWC_DISPLAY_PRIMARY))
1278 {
1279 }
1280
setEnabled(bool enabled)1281 void HWComposer::VSyncThread::setEnabled(bool enabled) {
1282 Mutex::Autolock _l(mLock);
1283 if (mEnabled != enabled) {
1284 mEnabled = enabled;
1285 mCondition.signal();
1286 }
1287 }
1288
onFirstRef()1289 void HWComposer::VSyncThread::onFirstRef() {
1290 run("VSyncThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
1291 }
1292
threadLoop()1293 bool HWComposer::VSyncThread::threadLoop() {
1294 { // scope for lock
1295 Mutex::Autolock _l(mLock);
1296 while (!mEnabled) {
1297 mCondition.wait(mLock);
1298 }
1299 }
1300
1301 const nsecs_t period = mRefreshPeriod;
1302 const nsecs_t now = systemTime(CLOCK_MONOTONIC);
1303 nsecs_t next_vsync = mNextFakeVSync;
1304 nsecs_t sleep = next_vsync - now;
1305 if (sleep < 0) {
1306 // we missed, find where the next vsync should be
1307 sleep = (period - ((now - next_vsync) % period));
1308 next_vsync = now + sleep;
1309 }
1310 mNextFakeVSync = next_vsync + period;
1311
1312 struct timespec spec;
1313 spec.tv_sec = next_vsync / 1000000000;
1314 spec.tv_nsec = next_vsync % 1000000000;
1315
1316 int err;
1317 do {
1318 err = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &spec, NULL);
1319 } while (err<0 && errno == EINTR);
1320
1321 if (err == 0) {
1322 mHwc.mEventHandler.onVSyncReceived(&mHwc, 0, next_vsync);
1323 }
1324
1325 return true;
1326 }
1327
DisplayData()1328 HWComposer::DisplayData::DisplayData()
1329 : configs(),
1330 currentConfig(0),
1331 format(HAL_PIXEL_FORMAT_RGBA_8888),
1332 connected(false),
1333 hasFbComp(false), hasOvComp(false),
1334 capacity(0), list(NULL),
1335 framebufferTarget(NULL), fbTargetHandle(0),
1336 lastRetireFence(Fence::NO_FENCE), lastDisplayFence(Fence::NO_FENCE),
1337 outbufHandle(NULL), outbufAcquireFence(Fence::NO_FENCE),
1338 events(0)
1339 {}
1340
~DisplayData()1341 HWComposer::DisplayData::~DisplayData() {
1342 free(list);
1343 }
1344
1345 // ---------------------------------------------------------------------------
1346 }; // namespace android
1347