1 /*
2 * Copyright (C) 2016 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 #define LOG_TAG "hwc-drm-two"
19
20 #include "DrmHwcTwo.h"
21
22 #include <cutils/properties.h>
23 #include <hardware/hardware.h>
24 #include <hardware/hwcomposer2.h>
25 #include <inttypes.h>
26 #include <log/log.h>
27
28 #include <string>
29
30 #include "backend/BackendManager.h"
31 #include "bufferinfo/BufferInfoGetter.h"
32 #include "compositor/DrmDisplayComposition.h"
33
34 namespace android {
35
DrmHwcTwo()36 DrmHwcTwo::DrmHwcTwo() {
37 common.tag = HARDWARE_DEVICE_TAG;
38 common.version = HWC_DEVICE_API_VERSION_2_0;
39 common.close = HookDevClose;
40 getCapabilities = HookDevGetCapabilities;
41 getFunction = HookDevGetFunction;
42 }
43
CreateDisplay(hwc2_display_t displ,HWC2::DisplayType type)44 HWC2::Error DrmHwcTwo::CreateDisplay(hwc2_display_t displ,
45 HWC2::DisplayType type) {
46 DrmDevice *drm = resource_manager_.GetDrmDevice(displ);
47 std::shared_ptr<Importer> importer = resource_manager_.GetImporter(displ);
48 if (!drm || !importer) {
49 ALOGE("Failed to get a valid drmresource and importer");
50 return HWC2::Error::NoResources;
51 }
52 displays_.emplace(std::piecewise_construct, std::forward_as_tuple(displ),
53 std::forward_as_tuple(&resource_manager_, drm, importer,
54 displ, type));
55
56 DrmCrtc *crtc = drm->GetCrtcForDisplay(static_cast<int>(displ));
57 if (!crtc) {
58 ALOGE("Failed to get crtc for display %d", static_cast<int>(displ));
59 return HWC2::Error::BadDisplay;
60 }
61 std::vector<DrmPlane *> display_planes;
62 for (auto &plane : drm->planes()) {
63 if (plane->GetCrtcSupported(*crtc))
64 display_planes.push_back(plane.get());
65 }
66 displays_.at(displ).Init(&display_planes);
67 return HWC2::Error::None;
68 }
69
Init()70 HWC2::Error DrmHwcTwo::Init() {
71 int rv = resource_manager_.Init();
72 if (rv) {
73 ALOGE("Can't initialize the resource manager %d", rv);
74 return HWC2::Error::NoResources;
75 }
76
77 HWC2::Error ret = HWC2::Error::None;
78 for (int i = 0; i < resource_manager_.getDisplayCount(); i++) {
79 ret = CreateDisplay(i, HWC2::DisplayType::Physical);
80 if (ret != HWC2::Error::None) {
81 ALOGE("Failed to create display %d with error %d", i, ret);
82 return ret;
83 }
84 }
85
86 auto &drmDevices = resource_manager_.getDrmDevices();
87 for (auto &device : drmDevices) {
88 device->RegisterHotplugHandler(new DrmHotplugHandler(this, device.get()));
89 }
90 return ret;
91 }
92
93 template <typename... Args>
unsupported(char const * func,Args...)94 static inline HWC2::Error unsupported(char const *func, Args... /*args*/) {
95 ALOGV("Unsupported function: %s", func);
96 return HWC2::Error::Unsupported;
97 }
98
supported(char const * func)99 static inline void supported(char const *func) {
100 ALOGV("Supported function: %s", func);
101 }
102
CreateVirtualDisplay(uint32_t width,uint32_t height,int32_t * format,hwc2_display_t * display)103 HWC2::Error DrmHwcTwo::CreateVirtualDisplay(uint32_t width, uint32_t height,
104 int32_t *format,
105 hwc2_display_t *display) {
106 // TODO: Implement virtual display
107 return unsupported(__func__, width, height, format, display);
108 }
109
DestroyVirtualDisplay(hwc2_display_t display)110 HWC2::Error DrmHwcTwo::DestroyVirtualDisplay(hwc2_display_t display) {
111 // TODO: Implement virtual display
112 return unsupported(__func__, display);
113 }
114
DumpDelta(DrmHwcTwo::HwcDisplay::Stats delta)115 std::string DrmHwcTwo::HwcDisplay::DumpDelta(
116 DrmHwcTwo::HwcDisplay::Stats delta) {
117 if (delta.total_pixops_ == 0)
118 return "No stats yet";
119 double Ratio = 1.0 - double(delta.gpu_pixops_) / double(delta.total_pixops_);
120
121 return (std::stringstream()
122 << " Total frames count: " << delta.total_frames_ << "\n"
123 << " Failed to test commit frames: " << delta.failed_kms_validate_
124 << "\n"
125 << " Failed to commit frames: " << delta.failed_kms_present_ << "\n"
126 << ((delta.failed_kms_present_ > 0)
127 ? " !!! Internal failure, FIX it please\n"
128 : "")
129 << " Flattened frames: " << delta.frames_flattened_ << "\n"
130 << " Pixel operations (free units)"
131 << " : [TOTAL: " << delta.total_pixops_
132 << " / GPU: " << delta.gpu_pixops_ << "]\n"
133 << " Composition efficiency: " << Ratio)
134 .str();
135 }
136
Dump()137 std::string DrmHwcTwo::HwcDisplay::Dump() {
138 auto out = (std::stringstream()
139 << "- Display on: " << connector_->name() << "\n"
140 << " Flattening state: " << compositor_.GetFlatteningState()
141 << "\n"
142 << "Statistics since system boot:\n"
143 << DumpDelta(total_stats_) << "\n\n"
144 << "Statistics since last dumpsys request:\n"
145 << DumpDelta(total_stats_.minus(prev_stats_)) << "\n\n")
146 .str();
147
148 memcpy(&prev_stats_, &total_stats_, sizeof(Stats));
149 return out;
150 }
151
Dump(uint32_t * outSize,char * outBuffer)152 void DrmHwcTwo::Dump(uint32_t *outSize, char *outBuffer) {
153 supported(__func__);
154
155 if (outBuffer != nullptr) {
156 auto copiedBytes = mDumpString.copy(outBuffer, *outSize);
157 *outSize = static_cast<uint32_t>(copiedBytes);
158 return;
159 }
160
161 std::stringstream output;
162
163 output << "-- drm_hwcomposer --\n\n";
164
165 for (std::pair<const hwc2_display_t, DrmHwcTwo::HwcDisplay> &dp : displays_)
166 output << dp.second.Dump();
167
168 mDumpString = output.str();
169 *outSize = static_cast<uint32_t>(mDumpString.size());
170 }
171
GetMaxVirtualDisplayCount()172 uint32_t DrmHwcTwo::GetMaxVirtualDisplayCount() {
173 // TODO: Implement virtual display
174 unsupported(__func__);
175 return 0;
176 }
177
RegisterCallback(int32_t descriptor,hwc2_callback_data_t data,hwc2_function_pointer_t function)178 HWC2::Error DrmHwcTwo::RegisterCallback(int32_t descriptor,
179 hwc2_callback_data_t data,
180 hwc2_function_pointer_t function) {
181 supported(__func__);
182
183 switch (static_cast<HWC2::Callback>(descriptor)) {
184 case HWC2::Callback::Hotplug: {
185 SetHotplugCallback(data, function);
186 auto &drmDevices = resource_manager_.getDrmDevices();
187 for (auto &device : drmDevices)
188 HandleInitialHotplugState(device.get());
189 break;
190 }
191 case HWC2::Callback::Refresh: {
192 for (std::pair<const hwc2_display_t, DrmHwcTwo::HwcDisplay> &d :
193 displays_)
194 d.second.RegisterRefreshCallback(data, function);
195 break;
196 }
197 case HWC2::Callback::Vsync: {
198 for (std::pair<const hwc2_display_t, DrmHwcTwo::HwcDisplay> &d :
199 displays_)
200 d.second.RegisterVsyncCallback(data, function);
201 break;
202 }
203 default:
204 break;
205 }
206 return HWC2::Error::None;
207 }
208
HwcDisplay(ResourceManager * resource_manager,DrmDevice * drm,std::shared_ptr<Importer> importer,hwc2_display_t handle,HWC2::DisplayType type)209 DrmHwcTwo::HwcDisplay::HwcDisplay(ResourceManager *resource_manager,
210 DrmDevice *drm,
211 std::shared_ptr<Importer> importer,
212 hwc2_display_t handle, HWC2::DisplayType type)
213 : resource_manager_(resource_manager),
214 drm_(drm),
215 importer_(importer),
216 handle_(handle),
217 type_(type),
218 color_transform_hint_(HAL_COLOR_TRANSFORM_IDENTITY) {
219 supported(__func__);
220
221 // clang-format off
222 color_transform_matrix_ = {1.0, 0.0, 0.0, 0.0,
223 0.0, 1.0, 0.0, 0.0,
224 0.0, 0.0, 1.0, 0.0,
225 0.0, 0.0, 0.0, 1.0};
226 // clang-format on
227 }
228
ClearDisplay()229 void DrmHwcTwo::HwcDisplay::ClearDisplay() {
230 compositor_.ClearDisplay();
231 }
232
Init(std::vector<DrmPlane * > * planes)233 HWC2::Error DrmHwcTwo::HwcDisplay::Init(std::vector<DrmPlane *> *planes) {
234 supported(__func__);
235 planner_ = Planner::CreateInstance(drm_);
236 if (!planner_) {
237 ALOGE("Failed to create planner instance for composition");
238 return HWC2::Error::NoResources;
239 }
240
241 int display = static_cast<int>(handle_);
242 int ret = compositor_.Init(resource_manager_, display);
243 if (ret) {
244 ALOGE("Failed display compositor init for display %d (%d)", display, ret);
245 return HWC2::Error::NoResources;
246 }
247
248 // Split up the given display planes into primary and overlay to properly
249 // interface with the composition
250 char use_overlay_planes_prop[PROPERTY_VALUE_MAX];
251 property_get("vendor.hwc.drm.use_overlay_planes", use_overlay_planes_prop,
252 "1");
253 bool use_overlay_planes = atoi(use_overlay_planes_prop);
254 for (auto &plane : *planes) {
255 if (plane->type() == DRM_PLANE_TYPE_PRIMARY)
256 primary_planes_.push_back(plane);
257 else if (use_overlay_planes && (plane)->type() == DRM_PLANE_TYPE_OVERLAY)
258 overlay_planes_.push_back(plane);
259 }
260
261 crtc_ = drm_->GetCrtcForDisplay(display);
262 if (!crtc_) {
263 ALOGE("Failed to get crtc for display %d", display);
264 return HWC2::Error::BadDisplay;
265 }
266
267 connector_ = drm_->GetConnectorForDisplay(display);
268 if (!connector_) {
269 ALOGE("Failed to get connector for display %d", display);
270 return HWC2::Error::BadDisplay;
271 }
272
273 ret = vsync_worker_.Init(drm_, display);
274 if (ret) {
275 ALOGE("Failed to create event worker for d=%d %d\n", display, ret);
276 return HWC2::Error::BadDisplay;
277 }
278
279 ret = BackendManager::GetInstance().SetBackendForDisplay(this);
280 if (ret) {
281 ALOGE("Failed to set backend for d=%d %d\n", display, ret);
282 return HWC2::Error::BadDisplay;
283 }
284
285 return ChosePreferredConfig();
286 }
287
ChosePreferredConfig()288 HWC2::Error DrmHwcTwo::HwcDisplay::ChosePreferredConfig() {
289 // Fetch the number of modes from the display
290 uint32_t num_configs;
291 HWC2::Error err = GetDisplayConfigs(&num_configs, NULL);
292 if (err != HWC2::Error::None || !num_configs)
293 return err;
294
295 return SetActiveConfig(connector_->get_preferred_mode_id());
296 }
297
RegisterVsyncCallback(hwc2_callback_data_t data,hwc2_function_pointer_t func)298 void DrmHwcTwo::HwcDisplay::RegisterVsyncCallback(
299 hwc2_callback_data_t data, hwc2_function_pointer_t func) {
300 supported(__func__);
301 vsync_worker_.RegisterClientCallback(data, func);
302 }
303
RegisterRefreshCallback(hwc2_callback_data_t data,hwc2_function_pointer_t func)304 void DrmHwcTwo::HwcDisplay::RegisterRefreshCallback(
305 hwc2_callback_data_t data, hwc2_function_pointer_t func) {
306 supported(__func__);
307 compositor_.SetRefreshCallback(data, func);
308 }
309
AcceptDisplayChanges()310 HWC2::Error DrmHwcTwo::HwcDisplay::AcceptDisplayChanges() {
311 supported(__func__);
312 for (std::pair<const hwc2_layer_t, DrmHwcTwo::HwcLayer> &l : layers_)
313 l.second.accept_type_change();
314 return HWC2::Error::None;
315 }
316
CreateLayer(hwc2_layer_t * layer)317 HWC2::Error DrmHwcTwo::HwcDisplay::CreateLayer(hwc2_layer_t *layer) {
318 supported(__func__);
319 layers_.emplace(static_cast<hwc2_layer_t>(layer_idx_), HwcLayer());
320 *layer = static_cast<hwc2_layer_t>(layer_idx_);
321 ++layer_idx_;
322 return HWC2::Error::None;
323 }
324
DestroyLayer(hwc2_layer_t layer)325 HWC2::Error DrmHwcTwo::HwcDisplay::DestroyLayer(hwc2_layer_t layer) {
326 supported(__func__);
327 if (!get_layer(layer))
328 return HWC2::Error::BadLayer;
329
330 layers_.erase(layer);
331 return HWC2::Error::None;
332 }
333
GetActiveConfig(hwc2_config_t * config)334 HWC2::Error DrmHwcTwo::HwcDisplay::GetActiveConfig(hwc2_config_t *config) {
335 supported(__func__);
336 DrmMode const &mode = connector_->active_mode();
337 if (mode.id() == 0)
338 return HWC2::Error::BadConfig;
339
340 *config = mode.id();
341 return HWC2::Error::None;
342 }
343
GetChangedCompositionTypes(uint32_t * num_elements,hwc2_layer_t * layers,int32_t * types)344 HWC2::Error DrmHwcTwo::HwcDisplay::GetChangedCompositionTypes(
345 uint32_t *num_elements, hwc2_layer_t *layers, int32_t *types) {
346 supported(__func__);
347 uint32_t num_changes = 0;
348 for (std::pair<const hwc2_layer_t, DrmHwcTwo::HwcLayer> &l : layers_) {
349 if (l.second.type_changed()) {
350 if (layers && num_changes < *num_elements)
351 layers[num_changes] = l.first;
352 if (types && num_changes < *num_elements)
353 types[num_changes] = static_cast<int32_t>(l.second.validated_type());
354 ++num_changes;
355 }
356 }
357 if (!layers && !types)
358 *num_elements = num_changes;
359 return HWC2::Error::None;
360 }
361
GetClientTargetSupport(uint32_t width,uint32_t height,int32_t,int32_t dataspace)362 HWC2::Error DrmHwcTwo::HwcDisplay::GetClientTargetSupport(uint32_t width,
363 uint32_t height,
364 int32_t /*format*/,
365 int32_t dataspace) {
366 supported(__func__);
367 std::pair<uint32_t, uint32_t> min = drm_->min_resolution();
368 std::pair<uint32_t, uint32_t> max = drm_->max_resolution();
369
370 if (width < min.first || height < min.second)
371 return HWC2::Error::Unsupported;
372
373 if (width > max.first || height > max.second)
374 return HWC2::Error::Unsupported;
375
376 if (dataspace != HAL_DATASPACE_UNKNOWN &&
377 dataspace != HAL_DATASPACE_STANDARD_UNSPECIFIED)
378 return HWC2::Error::Unsupported;
379
380 // TODO: Validate format can be handled by either GL or planes
381 return HWC2::Error::None;
382 }
383
GetColorModes(uint32_t * num_modes,int32_t * modes)384 HWC2::Error DrmHwcTwo::HwcDisplay::GetColorModes(uint32_t *num_modes,
385 int32_t *modes) {
386 supported(__func__);
387 if (!modes)
388 *num_modes = 1;
389
390 if (modes)
391 *modes = HAL_COLOR_MODE_NATIVE;
392
393 return HWC2::Error::None;
394 }
395
GetDisplayAttribute(hwc2_config_t config,int32_t attribute_in,int32_t * value)396 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayAttribute(hwc2_config_t config,
397 int32_t attribute_in,
398 int32_t *value) {
399 supported(__func__);
400 auto mode = std::find_if(connector_->modes().begin(),
401 connector_->modes().end(),
402 [config](DrmMode const &m) {
403 return m.id() == config;
404 });
405 if (mode == connector_->modes().end()) {
406 ALOGE("Could not find active mode for %d", config);
407 return HWC2::Error::BadConfig;
408 }
409
410 static const int32_t kUmPerInch = 25400;
411 uint32_t mm_width = connector_->mm_width();
412 uint32_t mm_height = connector_->mm_height();
413 auto attribute = static_cast<HWC2::Attribute>(attribute_in);
414 switch (attribute) {
415 case HWC2::Attribute::Width:
416 *value = mode->h_display();
417 break;
418 case HWC2::Attribute::Height:
419 *value = mode->v_display();
420 break;
421 case HWC2::Attribute::VsyncPeriod:
422 // in nanoseconds
423 *value = 1000 * 1000 * 1000 / mode->v_refresh();
424 break;
425 case HWC2::Attribute::DpiX:
426 // Dots per 1000 inches
427 *value = mm_width ? (mode->h_display() * kUmPerInch) / mm_width : -1;
428 break;
429 case HWC2::Attribute::DpiY:
430 // Dots per 1000 inches
431 *value = mm_height ? (mode->v_display() * kUmPerInch) / mm_height : -1;
432 break;
433 default:
434 *value = -1;
435 return HWC2::Error::BadConfig;
436 }
437 return HWC2::Error::None;
438 }
439
GetDisplayConfigs(uint32_t * num_configs,hwc2_config_t * configs)440 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayConfigs(uint32_t *num_configs,
441 hwc2_config_t *configs) {
442 supported(__func__);
443 // Since this callback is normally invoked twice (once to get the count, and
444 // once to populate configs), we don't really want to read the edid
445 // redundantly. Instead, only update the modes on the first invocation. While
446 // it's possible this will result in stale modes, it'll all come out in the
447 // wash when we try to set the active config later.
448 if (!configs) {
449 int ret = connector_->UpdateModes();
450 if (ret) {
451 ALOGE("Failed to update display modes %d", ret);
452 return HWC2::Error::BadDisplay;
453 }
454 }
455
456 // Since the upper layers only look at vactive/hactive/refresh, height and
457 // width, it doesn't differentiate interlaced from progressive and other
458 // similar modes. Depending on the order of modes we return to SF, it could
459 // end up choosing a suboptimal configuration and dropping the preferred
460 // mode. To workaround this, don't offer interlaced modes to SF if there is
461 // at least one non-interlaced alternative and only offer a single WxH@R
462 // mode with at least the prefered mode from in DrmConnector::UpdateModes()
463
464 // TODO: Remove the following block of code until AOSP handles all modes
465 std::vector<DrmMode> sel_modes;
466
467 // Add the preferred mode first to be sure it's not dropped
468 auto mode = std::find_if(connector_->modes().begin(),
469 connector_->modes().end(), [&](DrmMode const &m) {
470 return m.id() ==
471 connector_->get_preferred_mode_id();
472 });
473 if (mode != connector_->modes().end())
474 sel_modes.push_back(*mode);
475
476 // Add the active mode if different from preferred mode
477 if (connector_->active_mode().id() != connector_->get_preferred_mode_id())
478 sel_modes.push_back(connector_->active_mode());
479
480 // Cycle over the modes and filter out "similar" modes, keeping only the
481 // first ones in the order given by DRM (from CEA ids and timings order)
482 for (const DrmMode &mode : connector_->modes()) {
483 // TODO: Remove this when 3D Attributes are in AOSP
484 if (mode.flags() & DRM_MODE_FLAG_3D_MASK)
485 continue;
486
487 // TODO: Remove this when the Interlaced attribute is in AOSP
488 if (mode.flags() & DRM_MODE_FLAG_INTERLACE) {
489 auto m = std::find_if(connector_->modes().begin(),
490 connector_->modes().end(),
491 [&mode](DrmMode const &m) {
492 return !(m.flags() & DRM_MODE_FLAG_INTERLACE) &&
493 m.h_display() == mode.h_display() &&
494 m.v_display() == mode.v_display();
495 });
496 if (m == connector_->modes().end())
497 sel_modes.push_back(mode);
498
499 continue;
500 }
501
502 // Search for a similar WxH@R mode in the filtered list and drop it if
503 // another mode with the same WxH@R has already been selected
504 // TODO: Remove this when AOSP handles duplicates modes
505 auto m = std::find_if(sel_modes.begin(), sel_modes.end(),
506 [&mode](DrmMode const &m) {
507 return m.h_display() == mode.h_display() &&
508 m.v_display() == mode.v_display() &&
509 m.v_refresh() == mode.v_refresh();
510 });
511 if (m == sel_modes.end())
512 sel_modes.push_back(mode);
513 }
514
515 auto num_modes = static_cast<uint32_t>(sel_modes.size());
516 if (!configs) {
517 *num_configs = num_modes;
518 return HWC2::Error::None;
519 }
520
521 uint32_t idx = 0;
522 for (const DrmMode &mode : sel_modes) {
523 if (idx >= *num_configs)
524 break;
525 configs[idx++] = mode.id();
526 }
527 *num_configs = idx;
528 return HWC2::Error::None;
529 }
530
GetDisplayName(uint32_t * size,char * name)531 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayName(uint32_t *size, char *name) {
532 supported(__func__);
533 std::ostringstream stream;
534 stream << "display-" << connector_->id();
535 std::string string = stream.str();
536 size_t length = string.length();
537 if (!name) {
538 *size = length;
539 return HWC2::Error::None;
540 }
541
542 *size = std::min<uint32_t>(static_cast<uint32_t>(length - 1), *size);
543 strncpy(name, string.c_str(), *size);
544 return HWC2::Error::None;
545 }
546
GetDisplayRequests(int32_t * display_requests,uint32_t * num_elements,hwc2_layer_t * layers,int32_t * layer_requests)547 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayRequests(int32_t *display_requests,
548 uint32_t *num_elements,
549 hwc2_layer_t *layers,
550 int32_t *layer_requests) {
551 supported(__func__);
552 // TODO: I think virtual display should request
553 // HWC2_DISPLAY_REQUEST_WRITE_CLIENT_TARGET_TO_OUTPUT here
554 unsupported(__func__, display_requests, num_elements, layers, layer_requests);
555 *num_elements = 0;
556 return HWC2::Error::None;
557 }
558
GetDisplayType(int32_t * type)559 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayType(int32_t *type) {
560 supported(__func__);
561 *type = static_cast<int32_t>(type_);
562 return HWC2::Error::None;
563 }
564
GetDozeSupport(int32_t * support)565 HWC2::Error DrmHwcTwo::HwcDisplay::GetDozeSupport(int32_t *support) {
566 supported(__func__);
567 *support = 0;
568 return HWC2::Error::None;
569 }
570
GetHdrCapabilities(uint32_t * num_types,int32_t *,float *,float *,float *)571 HWC2::Error DrmHwcTwo::HwcDisplay::GetHdrCapabilities(
572 uint32_t *num_types, int32_t * /*types*/, float * /*max_luminance*/,
573 float * /*max_average_luminance*/, float * /*min_luminance*/) {
574 supported(__func__);
575 *num_types = 0;
576 return HWC2::Error::None;
577 }
578
GetReleaseFences(uint32_t * num_elements,hwc2_layer_t * layers,int32_t * fences)579 HWC2::Error DrmHwcTwo::HwcDisplay::GetReleaseFences(uint32_t *num_elements,
580 hwc2_layer_t *layers,
581 int32_t *fences) {
582 supported(__func__);
583 uint32_t num_layers = 0;
584
585 for (std::pair<const hwc2_layer_t, DrmHwcTwo::HwcLayer> &l : layers_) {
586 ++num_layers;
587 if (layers == NULL || fences == NULL) {
588 continue;
589 } else if (num_layers > *num_elements) {
590 ALOGW("Overflow num_elements %d/%d", num_layers, *num_elements);
591 return HWC2::Error::None;
592 }
593
594 layers[num_layers - 1] = l.first;
595 fences[num_layers - 1] = l.second.take_release_fence();
596 }
597 *num_elements = num_layers;
598 return HWC2::Error::None;
599 }
600
AddFenceToPresentFence(int fd)601 void DrmHwcTwo::HwcDisplay::AddFenceToPresentFence(int fd) {
602 if (fd < 0)
603 return;
604
605 if (present_fence_.get() >= 0) {
606 int old_fence = present_fence_.get();
607 present_fence_.Set(sync_merge("dc_present", old_fence, fd));
608 close(fd);
609 } else {
610 present_fence_.Set(fd);
611 }
612 }
613
HardwareSupportsLayerType(HWC2::Composition comp_type)614 bool DrmHwcTwo::HwcDisplay::HardwareSupportsLayerType(
615 HWC2::Composition comp_type) {
616 return comp_type == HWC2::Composition::Device ||
617 comp_type == HWC2::Composition::Cursor;
618 }
619
CreateComposition(bool test)620 HWC2::Error DrmHwcTwo::HwcDisplay::CreateComposition(bool test) {
621 std::vector<DrmCompositionDisplayLayersMap> layers_map;
622 layers_map.emplace_back();
623 DrmCompositionDisplayLayersMap &map = layers_map.back();
624
625 map.display = static_cast<int>(handle_);
626 map.geometry_changed = true; // TODO: Fix this
627
628 // order the layers by z-order
629 bool use_client_layer = false;
630 uint32_t client_z_order = UINT32_MAX;
631 std::map<uint32_t, DrmHwcTwo::HwcLayer *> z_map;
632 for (std::pair<const hwc2_layer_t, DrmHwcTwo::HwcLayer> &l : layers_) {
633 switch (l.second.validated_type()) {
634 case HWC2::Composition::Device:
635 z_map.emplace(std::make_pair(l.second.z_order(), &l.second));
636 break;
637 case HWC2::Composition::Client:
638 // Place it at the z_order of the lowest client layer
639 use_client_layer = true;
640 client_z_order = std::min(client_z_order, l.second.z_order());
641 break;
642 default:
643 continue;
644 }
645 }
646 if (use_client_layer)
647 z_map.emplace(std::make_pair(client_z_order, &client_layer_));
648
649 if (z_map.empty())
650 return HWC2::Error::BadLayer;
651
652 // now that they're ordered by z, add them to the composition
653 for (std::pair<const uint32_t, DrmHwcTwo::HwcLayer *> &l : z_map) {
654 DrmHwcLayer layer;
655 l.second->PopulateDrmLayer(&layer);
656 int ret = layer.ImportBuffer(importer_.get());
657 if (ret) {
658 ALOGE("Failed to import layer, ret=%d", ret);
659 return HWC2::Error::NoResources;
660 }
661 map.layers.emplace_back(std::move(layer));
662 }
663
664 std::unique_ptr<DrmDisplayComposition> composition = compositor_
665 .CreateComposition();
666 composition->Init(drm_, crtc_, importer_.get(), planner_.get(), frame_no_);
667
668 // TODO: Don't always assume geometry changed
669 int ret = composition->SetLayers(map.layers.data(), map.layers.size(), true);
670 if (ret) {
671 ALOGE("Failed to set layers in the composition ret=%d", ret);
672 return HWC2::Error::BadLayer;
673 }
674
675 std::vector<DrmPlane *> primary_planes(primary_planes_);
676 std::vector<DrmPlane *> overlay_planes(overlay_planes_);
677 ret = composition->Plan(&primary_planes, &overlay_planes);
678 if (ret) {
679 ALOGE("Failed to plan the composition ret=%d", ret);
680 return HWC2::Error::BadConfig;
681 }
682
683 // Disable the planes we're not using
684 for (auto i = primary_planes.begin(); i != primary_planes.end();) {
685 composition->AddPlaneDisable(*i);
686 i = primary_planes.erase(i);
687 }
688 for (auto i = overlay_planes.begin(); i != overlay_planes.end();) {
689 composition->AddPlaneDisable(*i);
690 i = overlay_planes.erase(i);
691 }
692
693 if (test) {
694 ret = compositor_.TestComposition(composition.get());
695 } else {
696 ret = compositor_.ApplyComposition(std::move(composition));
697 AddFenceToPresentFence(compositor_.TakeOutFence());
698 }
699 if (ret) {
700 if (!test)
701 ALOGE("Failed to apply the frame composition ret=%d", ret);
702 return HWC2::Error::BadParameter;
703 }
704 return HWC2::Error::None;
705 }
706
PresentDisplay(int32_t * present_fence)707 HWC2::Error DrmHwcTwo::HwcDisplay::PresentDisplay(int32_t *present_fence) {
708 supported(__func__);
709 HWC2::Error ret;
710
711 ++total_stats_.total_frames_;
712
713 ret = CreateComposition(false);
714 if (ret != HWC2::Error::None)
715 ++total_stats_.failed_kms_present_;
716
717 if (ret == HWC2::Error::BadLayer) {
718 // Can we really have no client or device layers?
719 *present_fence = -1;
720 return HWC2::Error::None;
721 }
722 if (ret != HWC2::Error::None)
723 return ret;
724
725 *present_fence = present_fence_.Release();
726
727 ++frame_no_;
728 return HWC2::Error::None;
729 }
730
SetActiveConfig(hwc2_config_t config)731 HWC2::Error DrmHwcTwo::HwcDisplay::SetActiveConfig(hwc2_config_t config) {
732 supported(__func__);
733 auto mode = std::find_if(connector_->modes().begin(),
734 connector_->modes().end(),
735 [config](DrmMode const &m) {
736 return m.id() == config;
737 });
738 if (mode == connector_->modes().end()) {
739 ALOGE("Could not find active mode for %d", config);
740 return HWC2::Error::BadConfig;
741 }
742
743 std::unique_ptr<DrmDisplayComposition> composition = compositor_
744 .CreateComposition();
745 composition->Init(drm_, crtc_, importer_.get(), planner_.get(), frame_no_);
746 int ret = composition->SetDisplayMode(*mode);
747 ret = compositor_.ApplyComposition(std::move(composition));
748 if (ret) {
749 ALOGE("Failed to queue dpms composition on %d", ret);
750 return HWC2::Error::BadConfig;
751 }
752
753 connector_->set_active_mode(*mode);
754
755 // Setup the client layer's dimensions
756 hwc_rect_t display_frame = {.left = 0,
757 .top = 0,
758 .right = static_cast<int>(mode->h_display()),
759 .bottom = static_cast<int>(mode->v_display())};
760 client_layer_.SetLayerDisplayFrame(display_frame);
761
762 return HWC2::Error::None;
763 }
764
SetClientTarget(buffer_handle_t target,int32_t acquire_fence,int32_t dataspace,hwc_region_t)765 HWC2::Error DrmHwcTwo::HwcDisplay::SetClientTarget(buffer_handle_t target,
766 int32_t acquire_fence,
767 int32_t dataspace,
768 hwc_region_t /*damage*/) {
769 supported(__func__);
770 UniqueFd uf(acquire_fence);
771
772 client_layer_.set_buffer(target);
773 client_layer_.set_acquire_fence(uf.get());
774 client_layer_.SetLayerDataspace(dataspace);
775
776 /* TODO: Do not update source_crop every call.
777 * It makes sense to do it once after every hotplug event. */
778 hwc_drm_bo bo{};
779 BufferInfoGetter::GetInstance()->ConvertBoInfo(target, &bo);
780
781 hwc_frect_t source_crop = {.left = 0.0f,
782 .top = 0.0f,
783 .right = bo.width + 0.0f,
784 .bottom = bo.height + 0.0f};
785 client_layer_.SetLayerSourceCrop(source_crop);
786
787 return HWC2::Error::None;
788 }
789
SetColorMode(int32_t mode)790 HWC2::Error DrmHwcTwo::HwcDisplay::SetColorMode(int32_t mode) {
791 supported(__func__);
792
793 if (mode < HAL_COLOR_MODE_NATIVE || mode > HAL_COLOR_MODE_BT2100_HLG)
794 return HWC2::Error::BadParameter;
795
796 if (mode != HAL_COLOR_MODE_NATIVE)
797 return HWC2::Error::Unsupported;
798
799 color_mode_ = mode;
800 return HWC2::Error::None;
801 }
802
SetColorTransform(const float * matrix,int32_t hint)803 HWC2::Error DrmHwcTwo::HwcDisplay::SetColorTransform(const float *matrix,
804 int32_t hint) {
805 supported(__func__);
806 if (hint < HAL_COLOR_TRANSFORM_IDENTITY ||
807 hint > HAL_COLOR_TRANSFORM_CORRECT_TRITANOPIA)
808 return HWC2::Error::BadParameter;
809
810 if (!matrix && hint == HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX)
811 return HWC2::Error::BadParameter;
812
813 color_transform_hint_ = static_cast<android_color_transform_t>(hint);
814 if (color_transform_hint_ == HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX)
815 std::copy(matrix, matrix + MATRIX_SIZE, color_transform_matrix_.begin());
816
817 return HWC2::Error::None;
818 }
819
SetOutputBuffer(buffer_handle_t buffer,int32_t release_fence)820 HWC2::Error DrmHwcTwo::HwcDisplay::SetOutputBuffer(buffer_handle_t buffer,
821 int32_t release_fence) {
822 supported(__func__);
823 // TODO: Need virtual display support
824 return unsupported(__func__, buffer, release_fence);
825 }
826
SetPowerMode(int32_t mode_in)827 HWC2::Error DrmHwcTwo::HwcDisplay::SetPowerMode(int32_t mode_in) {
828 supported(__func__);
829 uint64_t dpms_value = 0;
830 auto mode = static_cast<HWC2::PowerMode>(mode_in);
831 switch (mode) {
832 case HWC2::PowerMode::Off:
833 dpms_value = DRM_MODE_DPMS_OFF;
834 break;
835 case HWC2::PowerMode::On:
836 dpms_value = DRM_MODE_DPMS_ON;
837 break;
838 case HWC2::PowerMode::Doze:
839 case HWC2::PowerMode::DozeSuspend:
840 return HWC2::Error::Unsupported;
841 default:
842 ALOGI("Power mode %d is unsupported\n", mode);
843 return HWC2::Error::BadParameter;
844 };
845
846 std::unique_ptr<DrmDisplayComposition> composition = compositor_
847 .CreateComposition();
848 composition->Init(drm_, crtc_, importer_.get(), planner_.get(), frame_no_);
849 composition->SetDpmsMode(dpms_value);
850 int ret = compositor_.ApplyComposition(std::move(composition));
851 if (ret) {
852 ALOGE("Failed to apply the dpms composition ret=%d", ret);
853 return HWC2::Error::BadParameter;
854 }
855 return HWC2::Error::None;
856 }
857
SetVsyncEnabled(int32_t enabled)858 HWC2::Error DrmHwcTwo::HwcDisplay::SetVsyncEnabled(int32_t enabled) {
859 supported(__func__);
860 vsync_worker_.VSyncControl(HWC2_VSYNC_ENABLE == enabled);
861 return HWC2::Error::None;
862 }
863
CalcPixOps(std::map<uint32_t,DrmHwcTwo::HwcLayer * > & z_map,size_t first_z,size_t size)864 uint32_t DrmHwcTwo::HwcDisplay::CalcPixOps(
865 std::map<uint32_t, DrmHwcTwo::HwcLayer *> &z_map, size_t first_z,
866 size_t size) {
867 uint32_t pixops = 0;
868 for (std::pair<const uint32_t, DrmHwcTwo::HwcLayer *> &l : z_map) {
869 if (l.first >= first_z && l.first < first_z + size) {
870 hwc_rect_t df = l.second->display_frame();
871 pixops += (df.right - df.left) * (df.bottom - df.top);
872 }
873 }
874 return pixops;
875 }
876
MarkValidated(std::map<uint32_t,DrmHwcTwo::HwcLayer * > & z_map,size_t client_first_z,size_t client_size)877 void DrmHwcTwo::HwcDisplay::MarkValidated(
878 std::map<uint32_t, DrmHwcTwo::HwcLayer *> &z_map, size_t client_first_z,
879 size_t client_size) {
880 for (std::pair<const uint32_t, DrmHwcTwo::HwcLayer *> &l : z_map) {
881 if (l.first >= client_first_z && l.first < client_first_z + client_size)
882 l.second->set_validated_type(HWC2::Composition::Client);
883 else
884 l.second->set_validated_type(HWC2::Composition::Device);
885 }
886 }
887
ValidateDisplay(uint32_t * num_types,uint32_t * num_requests)888 HWC2::Error DrmHwcTwo::HwcDisplay::ValidateDisplay(uint32_t *num_types,
889 uint32_t *num_requests) {
890 supported(__func__);
891
892 return backend_->ValidateDisplay(this, num_types, num_requests);
893 }
894
895 #if PLATFORM_SDK_VERSION > 28
GetDisplayIdentificationData(uint8_t * outPort,uint32_t * outDataSize,uint8_t * outData)896 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayIdentificationData(
897 uint8_t *outPort, uint32_t *outDataSize, uint8_t *outData) {
898 supported(__func__);
899
900 drmModePropertyBlobPtr blob;
901
902 if (connector_->GetEdidBlob(blob)) {
903 ALOGE("Failed to get edid property value.");
904 return HWC2::Error::Unsupported;
905 }
906
907 if (outData) {
908 *outDataSize = std::min(*outDataSize, blob->length);
909 memcpy(outData, blob->data, *outDataSize);
910 } else {
911 *outDataSize = blob->length;
912 }
913 *outPort = connector_->id();
914
915 return HWC2::Error::None;
916 }
917
GetDisplayCapabilities(uint32_t * outNumCapabilities,uint32_t * outCapabilities)918 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayCapabilities(
919 uint32_t *outNumCapabilities, uint32_t *outCapabilities) {
920 unsupported(__func__, outCapabilities);
921
922 if (outNumCapabilities == NULL) {
923 return HWC2::Error::BadParameter;
924 }
925
926 *outNumCapabilities = 0;
927
928 return HWC2::Error::None;
929 }
930
GetDisplayBrightnessSupport(bool * supported)931 HWC2::Error DrmHwcTwo::HwcDisplay::GetDisplayBrightnessSupport(
932 bool *supported) {
933 *supported = false;
934 return HWC2::Error::None;
935 }
936
SetDisplayBrightness(float)937 HWC2::Error DrmHwcTwo::HwcDisplay::SetDisplayBrightness(
938 float /* brightness */) {
939 return HWC2::Error::Unsupported;
940 }
941
942 #endif /* PLATFORM_SDK_VERSION > 28 */
943
944 #if PLATFORM_SDK_VERSION > 27
945
GetRenderIntents(int32_t mode,uint32_t * outNumIntents,int32_t * outIntents)946 HWC2::Error DrmHwcTwo::HwcDisplay::GetRenderIntents(
947 int32_t mode, uint32_t *outNumIntents,
948 int32_t * /*android_render_intent_v1_1_t*/ outIntents) {
949 if (mode != HAL_COLOR_MODE_NATIVE) {
950 return HWC2::Error::BadParameter;
951 }
952
953 if (outIntents == nullptr) {
954 *outNumIntents = 1;
955 return HWC2::Error::None;
956 }
957 *outNumIntents = 1;
958 outIntents[0] = HAL_RENDER_INTENT_COLORIMETRIC;
959 return HWC2::Error::None;
960 }
961
SetColorModeWithIntent(int32_t mode,int32_t intent)962 HWC2::Error DrmHwcTwo::HwcDisplay::SetColorModeWithIntent(int32_t mode,
963 int32_t intent) {
964 if (intent < HAL_RENDER_INTENT_COLORIMETRIC ||
965 intent > HAL_RENDER_INTENT_TONE_MAP_ENHANCE)
966 return HWC2::Error::BadParameter;
967
968 if (mode < HAL_COLOR_MODE_NATIVE || mode > HAL_COLOR_MODE_BT2100_HLG)
969 return HWC2::Error::BadParameter;
970
971 if (mode != HAL_COLOR_MODE_NATIVE)
972 return HWC2::Error::Unsupported;
973
974 if (intent != HAL_RENDER_INTENT_COLORIMETRIC)
975 return HWC2::Error::Unsupported;
976
977 color_mode_ = mode;
978 return HWC2::Error::None;
979 }
980
981 #endif /* PLATFORM_SDK_VERSION > 27 */
982
SetCursorPosition(int32_t x,int32_t y)983 HWC2::Error DrmHwcTwo::HwcLayer::SetCursorPosition(int32_t x, int32_t y) {
984 supported(__func__);
985 cursor_x_ = x;
986 cursor_y_ = y;
987 return HWC2::Error::None;
988 }
989
SetLayerBlendMode(int32_t mode)990 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerBlendMode(int32_t mode) {
991 supported(__func__);
992 blending_ = static_cast<HWC2::BlendMode>(mode);
993 return HWC2::Error::None;
994 }
995
SetLayerBuffer(buffer_handle_t buffer,int32_t acquire_fence)996 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerBuffer(buffer_handle_t buffer,
997 int32_t acquire_fence) {
998 supported(__func__);
999 UniqueFd uf(acquire_fence);
1000
1001 set_buffer(buffer);
1002 set_acquire_fence(uf.get());
1003 return HWC2::Error::None;
1004 }
1005
SetLayerColor(hwc_color_t color)1006 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerColor(hwc_color_t color) {
1007 // TODO: Put to client composition here?
1008 supported(__func__);
1009 layer_color_ = color;
1010 return HWC2::Error::None;
1011 }
1012
SetLayerCompositionType(int32_t type)1013 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerCompositionType(int32_t type) {
1014 sf_type_ = static_cast<HWC2::Composition>(type);
1015 return HWC2::Error::None;
1016 }
1017
SetLayerDataspace(int32_t dataspace)1018 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerDataspace(int32_t dataspace) {
1019 supported(__func__);
1020 dataspace_ = static_cast<android_dataspace_t>(dataspace);
1021 return HWC2::Error::None;
1022 }
1023
SetLayerDisplayFrame(hwc_rect_t frame)1024 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerDisplayFrame(hwc_rect_t frame) {
1025 supported(__func__);
1026 display_frame_ = frame;
1027 return HWC2::Error::None;
1028 }
1029
SetLayerPlaneAlpha(float alpha)1030 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerPlaneAlpha(float alpha) {
1031 supported(__func__);
1032 alpha_ = alpha;
1033 return HWC2::Error::None;
1034 }
1035
SetLayerSidebandStream(const native_handle_t * stream)1036 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerSidebandStream(
1037 const native_handle_t *stream) {
1038 supported(__func__);
1039 // TODO: We don't support sideband
1040 return unsupported(__func__, stream);
1041 }
1042
SetLayerSourceCrop(hwc_frect_t crop)1043 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerSourceCrop(hwc_frect_t crop) {
1044 supported(__func__);
1045 source_crop_ = crop;
1046 return HWC2::Error::None;
1047 }
1048
SetLayerSurfaceDamage(hwc_region_t damage)1049 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerSurfaceDamage(hwc_region_t damage) {
1050 supported(__func__);
1051 // TODO: We don't use surface damage, marking as unsupported
1052 unsupported(__func__, damage);
1053 return HWC2::Error::None;
1054 }
1055
SetLayerTransform(int32_t transform)1056 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerTransform(int32_t transform) {
1057 supported(__func__);
1058 transform_ = static_cast<HWC2::Transform>(transform);
1059 return HWC2::Error::None;
1060 }
1061
SetLayerVisibleRegion(hwc_region_t visible)1062 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerVisibleRegion(hwc_region_t visible) {
1063 supported(__func__);
1064 // TODO: We don't use this information, marking as unsupported
1065 unsupported(__func__, visible);
1066 return HWC2::Error::None;
1067 }
1068
SetLayerZOrder(uint32_t order)1069 HWC2::Error DrmHwcTwo::HwcLayer::SetLayerZOrder(uint32_t order) {
1070 supported(__func__);
1071 z_order_ = order;
1072 return HWC2::Error::None;
1073 }
1074
PopulateDrmLayer(DrmHwcLayer * layer)1075 void DrmHwcTwo::HwcLayer::PopulateDrmLayer(DrmHwcLayer *layer) {
1076 supported(__func__);
1077 switch (blending_) {
1078 case HWC2::BlendMode::None:
1079 layer->blending = DrmHwcBlending::kNone;
1080 break;
1081 case HWC2::BlendMode::Premultiplied:
1082 layer->blending = DrmHwcBlending::kPreMult;
1083 break;
1084 case HWC2::BlendMode::Coverage:
1085 layer->blending = DrmHwcBlending::kCoverage;
1086 break;
1087 default:
1088 ALOGE("Unknown blending mode b=%d", blending_);
1089 layer->blending = DrmHwcBlending::kNone;
1090 break;
1091 }
1092
1093 OutputFd release_fence = release_fence_output();
1094
1095 layer->sf_handle = buffer_;
1096 layer->acquire_fence = acquire_fence_.Release();
1097 layer->release_fence = std::move(release_fence);
1098 layer->SetDisplayFrame(display_frame_);
1099 layer->alpha = static_cast<uint16_t>(65535.0f * alpha_ + 0.5f);
1100 layer->SetSourceCrop(source_crop_);
1101 layer->SetTransform(static_cast<int32_t>(transform_));
1102 }
1103
HandleDisplayHotplug(hwc2_display_t displayid,int state)1104 void DrmHwcTwo::HandleDisplayHotplug(hwc2_display_t displayid, int state) {
1105 const std::lock_guard<std::mutex> lock(hotplug_callback_lock);
1106
1107 if (hotplug_callback_hook_ && hotplug_callback_data_)
1108 hotplug_callback_hook_(hotplug_callback_data_, displayid,
1109 state == DRM_MODE_CONNECTED
1110 ? HWC2_CONNECTION_CONNECTED
1111 : HWC2_CONNECTION_DISCONNECTED);
1112 }
1113
HandleInitialHotplugState(DrmDevice * drmDevice)1114 void DrmHwcTwo::HandleInitialHotplugState(DrmDevice *drmDevice) {
1115 for (auto &conn : drmDevice->connectors()) {
1116 if (conn->state() != DRM_MODE_CONNECTED)
1117 continue;
1118 HandleDisplayHotplug(conn->display(), conn->state());
1119 }
1120 }
1121
HandleEvent(uint64_t timestamp_us)1122 void DrmHwcTwo::DrmHotplugHandler::HandleEvent(uint64_t timestamp_us) {
1123 for (auto &conn : drm_->connectors()) {
1124 drmModeConnection old_state = conn->state();
1125 drmModeConnection cur_state = conn->UpdateModes()
1126 ? DRM_MODE_UNKNOWNCONNECTION
1127 : conn->state();
1128
1129 if (cur_state == old_state)
1130 continue;
1131
1132 ALOGI("%s event @%" PRIu64 " for connector %u on display %d",
1133 cur_state == DRM_MODE_CONNECTED ? "Plug" : "Unplug", timestamp_us,
1134 conn->id(), conn->display());
1135
1136 int display_id = conn->display();
1137 if (cur_state == DRM_MODE_CONNECTED) {
1138 auto &display = hwc2_->displays_.at(display_id);
1139 display.ChosePreferredConfig();
1140 } else {
1141 auto &display = hwc2_->displays_.at(display_id);
1142 display.ClearDisplay();
1143 }
1144
1145 hwc2_->HandleDisplayHotplug(display_id, cur_state);
1146 }
1147 }
1148
1149 // static
HookDevClose(hw_device_t *)1150 int DrmHwcTwo::HookDevClose(hw_device_t * /*dev*/) {
1151 unsupported(__func__);
1152 return 0;
1153 }
1154
1155 // static
HookDevGetCapabilities(hwc2_device_t *,uint32_t * out_count,int32_t *)1156 void DrmHwcTwo::HookDevGetCapabilities(hwc2_device_t * /*dev*/,
1157 uint32_t *out_count,
1158 int32_t * /*out_capabilities*/) {
1159 supported(__func__);
1160 *out_count = 0;
1161 }
1162
1163 // static
HookDevGetFunction(struct hwc2_device *,int32_t descriptor)1164 hwc2_function_pointer_t DrmHwcTwo::HookDevGetFunction(
1165 struct hwc2_device * /*dev*/, int32_t descriptor) {
1166 supported(__func__);
1167 auto func = static_cast<HWC2::FunctionDescriptor>(descriptor);
1168 switch (func) {
1169 // Device functions
1170 case HWC2::FunctionDescriptor::CreateVirtualDisplay:
1171 return ToHook<HWC2_PFN_CREATE_VIRTUAL_DISPLAY>(
1172 DeviceHook<int32_t, decltype(&DrmHwcTwo::CreateVirtualDisplay),
1173 &DrmHwcTwo::CreateVirtualDisplay, uint32_t, uint32_t,
1174 int32_t *, hwc2_display_t *>);
1175 case HWC2::FunctionDescriptor::DestroyVirtualDisplay:
1176 return ToHook<HWC2_PFN_DESTROY_VIRTUAL_DISPLAY>(
1177 DeviceHook<int32_t, decltype(&DrmHwcTwo::DestroyVirtualDisplay),
1178 &DrmHwcTwo::DestroyVirtualDisplay, hwc2_display_t>);
1179 case HWC2::FunctionDescriptor::Dump:
1180 return ToHook<HWC2_PFN_DUMP>(
1181 DeviceHook<void, decltype(&DrmHwcTwo::Dump), &DrmHwcTwo::Dump,
1182 uint32_t *, char *>);
1183 case HWC2::FunctionDescriptor::GetMaxVirtualDisplayCount:
1184 return ToHook<HWC2_PFN_GET_MAX_VIRTUAL_DISPLAY_COUNT>(
1185 DeviceHook<uint32_t, decltype(&DrmHwcTwo::GetMaxVirtualDisplayCount),
1186 &DrmHwcTwo::GetMaxVirtualDisplayCount>);
1187 case HWC2::FunctionDescriptor::RegisterCallback:
1188 return ToHook<HWC2_PFN_REGISTER_CALLBACK>(
1189 DeviceHook<int32_t, decltype(&DrmHwcTwo::RegisterCallback),
1190 &DrmHwcTwo::RegisterCallback, int32_t,
1191 hwc2_callback_data_t, hwc2_function_pointer_t>);
1192
1193 // Display functions
1194 case HWC2::FunctionDescriptor::AcceptDisplayChanges:
1195 return ToHook<HWC2_PFN_ACCEPT_DISPLAY_CHANGES>(
1196 DisplayHook<decltype(&HwcDisplay::AcceptDisplayChanges),
1197 &HwcDisplay::AcceptDisplayChanges>);
1198 case HWC2::FunctionDescriptor::CreateLayer:
1199 return ToHook<HWC2_PFN_CREATE_LAYER>(
1200 DisplayHook<decltype(&HwcDisplay::CreateLayer),
1201 &HwcDisplay::CreateLayer, hwc2_layer_t *>);
1202 case HWC2::FunctionDescriptor::DestroyLayer:
1203 return ToHook<HWC2_PFN_DESTROY_LAYER>(
1204 DisplayHook<decltype(&HwcDisplay::DestroyLayer),
1205 &HwcDisplay::DestroyLayer, hwc2_layer_t>);
1206 case HWC2::FunctionDescriptor::GetActiveConfig:
1207 return ToHook<HWC2_PFN_GET_ACTIVE_CONFIG>(
1208 DisplayHook<decltype(&HwcDisplay::GetActiveConfig),
1209 &HwcDisplay::GetActiveConfig, hwc2_config_t *>);
1210 case HWC2::FunctionDescriptor::GetChangedCompositionTypes:
1211 return ToHook<HWC2_PFN_GET_CHANGED_COMPOSITION_TYPES>(
1212 DisplayHook<decltype(&HwcDisplay::GetChangedCompositionTypes),
1213 &HwcDisplay::GetChangedCompositionTypes, uint32_t *,
1214 hwc2_layer_t *, int32_t *>);
1215 case HWC2::FunctionDescriptor::GetClientTargetSupport:
1216 return ToHook<HWC2_PFN_GET_CLIENT_TARGET_SUPPORT>(
1217 DisplayHook<decltype(&HwcDisplay::GetClientTargetSupport),
1218 &HwcDisplay::GetClientTargetSupport, uint32_t, uint32_t,
1219 int32_t, int32_t>);
1220 case HWC2::FunctionDescriptor::GetColorModes:
1221 return ToHook<HWC2_PFN_GET_COLOR_MODES>(
1222 DisplayHook<decltype(&HwcDisplay::GetColorModes),
1223 &HwcDisplay::GetColorModes, uint32_t *, int32_t *>);
1224 case HWC2::FunctionDescriptor::GetDisplayAttribute:
1225 return ToHook<HWC2_PFN_GET_DISPLAY_ATTRIBUTE>(
1226 DisplayHook<decltype(&HwcDisplay::GetDisplayAttribute),
1227 &HwcDisplay::GetDisplayAttribute, hwc2_config_t, int32_t,
1228 int32_t *>);
1229 case HWC2::FunctionDescriptor::GetDisplayConfigs:
1230 return ToHook<HWC2_PFN_GET_DISPLAY_CONFIGS>(
1231 DisplayHook<decltype(&HwcDisplay::GetDisplayConfigs),
1232 &HwcDisplay::GetDisplayConfigs, uint32_t *,
1233 hwc2_config_t *>);
1234 case HWC2::FunctionDescriptor::GetDisplayName:
1235 return ToHook<HWC2_PFN_GET_DISPLAY_NAME>(
1236 DisplayHook<decltype(&HwcDisplay::GetDisplayName),
1237 &HwcDisplay::GetDisplayName, uint32_t *, char *>);
1238 case HWC2::FunctionDescriptor::GetDisplayRequests:
1239 return ToHook<HWC2_PFN_GET_DISPLAY_REQUESTS>(
1240 DisplayHook<decltype(&HwcDisplay::GetDisplayRequests),
1241 &HwcDisplay::GetDisplayRequests, int32_t *, uint32_t *,
1242 hwc2_layer_t *, int32_t *>);
1243 case HWC2::FunctionDescriptor::GetDisplayType:
1244 return ToHook<HWC2_PFN_GET_DISPLAY_TYPE>(
1245 DisplayHook<decltype(&HwcDisplay::GetDisplayType),
1246 &HwcDisplay::GetDisplayType, int32_t *>);
1247 case HWC2::FunctionDescriptor::GetDozeSupport:
1248 return ToHook<HWC2_PFN_GET_DOZE_SUPPORT>(
1249 DisplayHook<decltype(&HwcDisplay::GetDozeSupport),
1250 &HwcDisplay::GetDozeSupport, int32_t *>);
1251 case HWC2::FunctionDescriptor::GetHdrCapabilities:
1252 return ToHook<HWC2_PFN_GET_HDR_CAPABILITIES>(
1253 DisplayHook<decltype(&HwcDisplay::GetHdrCapabilities),
1254 &HwcDisplay::GetHdrCapabilities, uint32_t *, int32_t *,
1255 float *, float *, float *>);
1256 case HWC2::FunctionDescriptor::GetReleaseFences:
1257 return ToHook<HWC2_PFN_GET_RELEASE_FENCES>(
1258 DisplayHook<decltype(&HwcDisplay::GetReleaseFences),
1259 &HwcDisplay::GetReleaseFences, uint32_t *, hwc2_layer_t *,
1260 int32_t *>);
1261 case HWC2::FunctionDescriptor::PresentDisplay:
1262 return ToHook<HWC2_PFN_PRESENT_DISPLAY>(
1263 DisplayHook<decltype(&HwcDisplay::PresentDisplay),
1264 &HwcDisplay::PresentDisplay, int32_t *>);
1265 case HWC2::FunctionDescriptor::SetActiveConfig:
1266 return ToHook<HWC2_PFN_SET_ACTIVE_CONFIG>(
1267 DisplayHook<decltype(&HwcDisplay::SetActiveConfig),
1268 &HwcDisplay::SetActiveConfig, hwc2_config_t>);
1269 case HWC2::FunctionDescriptor::SetClientTarget:
1270 return ToHook<HWC2_PFN_SET_CLIENT_TARGET>(
1271 DisplayHook<decltype(&HwcDisplay::SetClientTarget),
1272 &HwcDisplay::SetClientTarget, buffer_handle_t, int32_t,
1273 int32_t, hwc_region_t>);
1274 case HWC2::FunctionDescriptor::SetColorMode:
1275 return ToHook<HWC2_PFN_SET_COLOR_MODE>(
1276 DisplayHook<decltype(&HwcDisplay::SetColorMode),
1277 &HwcDisplay::SetColorMode, int32_t>);
1278 case HWC2::FunctionDescriptor::SetColorTransform:
1279 return ToHook<HWC2_PFN_SET_COLOR_TRANSFORM>(
1280 DisplayHook<decltype(&HwcDisplay::SetColorTransform),
1281 &HwcDisplay::SetColorTransform, const float *, int32_t>);
1282 case HWC2::FunctionDescriptor::SetOutputBuffer:
1283 return ToHook<HWC2_PFN_SET_OUTPUT_BUFFER>(
1284 DisplayHook<decltype(&HwcDisplay::SetOutputBuffer),
1285 &HwcDisplay::SetOutputBuffer, buffer_handle_t, int32_t>);
1286 case HWC2::FunctionDescriptor::SetPowerMode:
1287 return ToHook<HWC2_PFN_SET_POWER_MODE>(
1288 DisplayHook<decltype(&HwcDisplay::SetPowerMode),
1289 &HwcDisplay::SetPowerMode, int32_t>);
1290 case HWC2::FunctionDescriptor::SetVsyncEnabled:
1291 return ToHook<HWC2_PFN_SET_VSYNC_ENABLED>(
1292 DisplayHook<decltype(&HwcDisplay::SetVsyncEnabled),
1293 &HwcDisplay::SetVsyncEnabled, int32_t>);
1294 case HWC2::FunctionDescriptor::ValidateDisplay:
1295 return ToHook<HWC2_PFN_VALIDATE_DISPLAY>(
1296 DisplayHook<decltype(&HwcDisplay::ValidateDisplay),
1297 &HwcDisplay::ValidateDisplay, uint32_t *, uint32_t *>);
1298 #if PLATFORM_SDK_VERSION > 27
1299 case HWC2::FunctionDescriptor::GetRenderIntents:
1300 return ToHook<HWC2_PFN_GET_RENDER_INTENTS>(
1301 DisplayHook<decltype(&HwcDisplay::GetRenderIntents),
1302 &HwcDisplay::GetRenderIntents, int32_t, uint32_t *,
1303 int32_t *>);
1304 case HWC2::FunctionDescriptor::SetColorModeWithRenderIntent:
1305 return ToHook<HWC2_PFN_SET_COLOR_MODE_WITH_RENDER_INTENT>(
1306 DisplayHook<decltype(&HwcDisplay::SetColorModeWithIntent),
1307 &HwcDisplay::SetColorModeWithIntent, int32_t, int32_t>);
1308 #endif
1309 #if PLATFORM_SDK_VERSION > 28
1310 case HWC2::FunctionDescriptor::GetDisplayIdentificationData:
1311 return ToHook<HWC2_PFN_GET_DISPLAY_IDENTIFICATION_DATA>(
1312 DisplayHook<decltype(&HwcDisplay::GetDisplayIdentificationData),
1313 &HwcDisplay::GetDisplayIdentificationData, uint8_t *,
1314 uint32_t *, uint8_t *>);
1315 case HWC2::FunctionDescriptor::GetDisplayCapabilities:
1316 return ToHook<HWC2_PFN_GET_DISPLAY_CAPABILITIES>(
1317 DisplayHook<decltype(&HwcDisplay::GetDisplayCapabilities),
1318 &HwcDisplay::GetDisplayCapabilities, uint32_t *,
1319 uint32_t *>);
1320 case HWC2::FunctionDescriptor::GetDisplayBrightnessSupport:
1321 return ToHook<HWC2_PFN_GET_DISPLAY_BRIGHTNESS_SUPPORT>(
1322 DisplayHook<decltype(&HwcDisplay::GetDisplayBrightnessSupport),
1323 &HwcDisplay::GetDisplayBrightnessSupport, bool *>);
1324 case HWC2::FunctionDescriptor::SetDisplayBrightness:
1325 return ToHook<HWC2_PFN_SET_DISPLAY_BRIGHTNESS>(
1326 DisplayHook<decltype(&HwcDisplay::SetDisplayBrightness),
1327 &HwcDisplay::SetDisplayBrightness, float>);
1328 #endif /* PLATFORM_SDK_VERSION > 28 */
1329 // Layer functions
1330 case HWC2::FunctionDescriptor::SetCursorPosition:
1331 return ToHook<HWC2_PFN_SET_CURSOR_POSITION>(
1332 LayerHook<decltype(&HwcLayer::SetCursorPosition),
1333 &HwcLayer::SetCursorPosition, int32_t, int32_t>);
1334 case HWC2::FunctionDescriptor::SetLayerBlendMode:
1335 return ToHook<HWC2_PFN_SET_LAYER_BLEND_MODE>(
1336 LayerHook<decltype(&HwcLayer::SetLayerBlendMode),
1337 &HwcLayer::SetLayerBlendMode, int32_t>);
1338 case HWC2::FunctionDescriptor::SetLayerBuffer:
1339 return ToHook<HWC2_PFN_SET_LAYER_BUFFER>(
1340 LayerHook<decltype(&HwcLayer::SetLayerBuffer),
1341 &HwcLayer::SetLayerBuffer, buffer_handle_t, int32_t>);
1342 case HWC2::FunctionDescriptor::SetLayerColor:
1343 return ToHook<HWC2_PFN_SET_LAYER_COLOR>(
1344 LayerHook<decltype(&HwcLayer::SetLayerColor),
1345 &HwcLayer::SetLayerColor, hwc_color_t>);
1346 case HWC2::FunctionDescriptor::SetLayerCompositionType:
1347 return ToHook<HWC2_PFN_SET_LAYER_COMPOSITION_TYPE>(
1348 LayerHook<decltype(&HwcLayer::SetLayerCompositionType),
1349 &HwcLayer::SetLayerCompositionType, int32_t>);
1350 case HWC2::FunctionDescriptor::SetLayerDataspace:
1351 return ToHook<HWC2_PFN_SET_LAYER_DATASPACE>(
1352 LayerHook<decltype(&HwcLayer::SetLayerDataspace),
1353 &HwcLayer::SetLayerDataspace, int32_t>);
1354 case HWC2::FunctionDescriptor::SetLayerDisplayFrame:
1355 return ToHook<HWC2_PFN_SET_LAYER_DISPLAY_FRAME>(
1356 LayerHook<decltype(&HwcLayer::SetLayerDisplayFrame),
1357 &HwcLayer::SetLayerDisplayFrame, hwc_rect_t>);
1358 case HWC2::FunctionDescriptor::SetLayerPlaneAlpha:
1359 return ToHook<HWC2_PFN_SET_LAYER_PLANE_ALPHA>(
1360 LayerHook<decltype(&HwcLayer::SetLayerPlaneAlpha),
1361 &HwcLayer::SetLayerPlaneAlpha, float>);
1362 case HWC2::FunctionDescriptor::SetLayerSidebandStream:
1363 return ToHook<HWC2_PFN_SET_LAYER_SIDEBAND_STREAM>(
1364 LayerHook<decltype(&HwcLayer::SetLayerSidebandStream),
1365 &HwcLayer::SetLayerSidebandStream,
1366 const native_handle_t *>);
1367 case HWC2::FunctionDescriptor::SetLayerSourceCrop:
1368 return ToHook<HWC2_PFN_SET_LAYER_SOURCE_CROP>(
1369 LayerHook<decltype(&HwcLayer::SetLayerSourceCrop),
1370 &HwcLayer::SetLayerSourceCrop, hwc_frect_t>);
1371 case HWC2::FunctionDescriptor::SetLayerSurfaceDamage:
1372 return ToHook<HWC2_PFN_SET_LAYER_SURFACE_DAMAGE>(
1373 LayerHook<decltype(&HwcLayer::SetLayerSurfaceDamage),
1374 &HwcLayer::SetLayerSurfaceDamage, hwc_region_t>);
1375 case HWC2::FunctionDescriptor::SetLayerTransform:
1376 return ToHook<HWC2_PFN_SET_LAYER_TRANSFORM>(
1377 LayerHook<decltype(&HwcLayer::SetLayerTransform),
1378 &HwcLayer::SetLayerTransform, int32_t>);
1379 case HWC2::FunctionDescriptor::SetLayerVisibleRegion:
1380 return ToHook<HWC2_PFN_SET_LAYER_VISIBLE_REGION>(
1381 LayerHook<decltype(&HwcLayer::SetLayerVisibleRegion),
1382 &HwcLayer::SetLayerVisibleRegion, hwc_region_t>);
1383 case HWC2::FunctionDescriptor::SetLayerZOrder:
1384 return ToHook<HWC2_PFN_SET_LAYER_Z_ORDER>(
1385 LayerHook<decltype(&HwcLayer::SetLayerZOrder),
1386 &HwcLayer::SetLayerZOrder, uint32_t>);
1387 case HWC2::FunctionDescriptor::Invalid:
1388 default:
1389 return NULL;
1390 }
1391 }
1392
1393 // static
HookDevOpen(const struct hw_module_t * module,const char * name,struct hw_device_t ** dev)1394 int DrmHwcTwo::HookDevOpen(const struct hw_module_t *module, const char *name,
1395 struct hw_device_t **dev) {
1396 supported(__func__);
1397 if (strcmp(name, HWC_HARDWARE_COMPOSER)) {
1398 ALOGE("Invalid module name- %s", name);
1399 return -EINVAL;
1400 }
1401
1402 std::unique_ptr<DrmHwcTwo> ctx(new DrmHwcTwo());
1403 if (!ctx) {
1404 ALOGE("Failed to allocate DrmHwcTwo");
1405 return -ENOMEM;
1406 }
1407
1408 HWC2::Error err = ctx->Init();
1409 if (err != HWC2::Error::None) {
1410 ALOGE("Failed to initialize DrmHwcTwo err=%d\n", err);
1411 return -EINVAL;
1412 }
1413
1414 ctx->common.module = const_cast<hw_module_t *>(module);
1415 *dev = &ctx->common;
1416 ctx.release();
1417 return 0;
1418 }
1419 } // namespace android
1420
1421 static struct hw_module_methods_t hwc2_module_methods = {
1422 .open = android::DrmHwcTwo::HookDevOpen,
1423 };
1424
1425 hw_module_t HAL_MODULE_INFO_SYM = {
1426 .tag = HARDWARE_MODULE_TAG,
1427 .module_api_version = HARDWARE_MODULE_API_VERSION(2, 0),
1428 .id = HWC_HARDWARE_MODULE_ID,
1429 .name = "DrmHwcTwo module",
1430 .author = "The Android Open Source Project",
1431 .methods = &hwc2_module_methods,
1432 .dso = NULL,
1433 .reserved = {0},
1434 };
1435