src/starboard/shared/directfb/application_directfb.cc - cobalt - Git at Google

 // Copyright 2016 The Cobalt Authors. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include "starboard/shared/directfb/application_directfb.h"

 #include <algorithm>
 #include <iomanip>

 #include <directfb/directfb_version.h>  // NOLINT(build/include_order)

 // Anything less than 1.7.x needs special behavior on teardown.
 // Issue confirmed on 1.7.7, and separate issue perhaps seen on 1.2.x
 #define NEEDS_DIRECTFB_TEARDOWN_WORKAROUND \
     ((DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION <= 7))

 #if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
 #include <setjmp.h>
 #include <signal.h>
 #include <unistd.h>
 #endif

 #include "starboard/input.h"
 #include "starboard/key.h"
 #include "starboard/log.h"
 #include "starboard/memory.h"
 #include "starboard/shared/directfb/window_internal.h"
 #include "starboard/shared/posix/time_internal.h"
 #include "starboard/shared/starboard/audio_sink/audio_sink_internal.h"
 #include "starboard/time.h"

 namespace starboard {

 namespace {

 SbKey DFBKeyEventToSbKey(const DFBInputEvent& event) {
   SB_DCHECK(event.type == DIET_KEYPRESS || event.type == DIET_KEYRELEASE);
   SB_DCHECK(event.flags & DIEF_KEYID);

   // The following Starboard keys are currently not being generated by the code
   // below:
   //   kSbKeyKana
   //   kSbKeyHangul
   //   kSbKeyHanja
   //   kSbKeyKanji
   //   kSbKeyConvert
   //   kSbKeyNonconvert
   //   kSbKeyDbeDbcschar
   //   kSbKeyExecute
   //   kSbKeyF13
   //   kSbKeyF14
   //   kSbKeyF15
   //   kSbKeyF16
   //   kSbKeyF17
   //   kSbKeyF18
   //   kSbKeyF19
   //   kSbKeyF20
   //   kSbKeyF21
   //   kSbKeyF22
   //   kSbKeyF23
   //   kSbKeyF24
   //   kSbKeyBrowserSearch
   //   kSbKeyBrowserHome
   //   kSbKeyMediaLaunchApp
   //   kSbKeyWla
   //   kSbKeyBrightnessDown
   //   kSbKeyBrightnessUp
   //   kSbKeyKbdBrightnessDown
   //   kSbKeyKbdBrightnessUp
   //   kSbKeyBrowserBack
   //   kSbKeyBrowserForward
   //   kSbKeyBrowserRefresh
   //   kSbKeyBrowserStop
   //   kSbKeyBrowserFavorites

   if (event.flags & DIEF_KEYSYMBOL) {
     switch (event.key_symbol) {
       case DIKS_CLEAR:
         return kSbKeyClear;
       case DIKS_SELECT:
         return kSbKeySelect;
       case DIKS_HELP:
         return kSbKeyHelp;
       case DIKS_MENU:
         return kSbKeyApps;

       // For supporting multimedia buttons on a USB keyboard.
       case DIKS_MUTE:
         return kSbKeyVolumeMute;
       case DIKS_VOLUME_DOWN:
         return kSbKeyVolumeDown;
       case DIKS_VOLUME_UP:
         return kSbKeyVolumeUp;
       case DIKS_NEXT:
         return kSbKeyMediaNextTrack;
       case DIKS_PREVIOUS:
         return kSbKeyMediaPrevTrack;
       case DIKS_STOP:
         return kSbKeyMediaStop;
       case DIKS_PLAY:
         return kSbKeyMediaPlayPause;
       case DIKS_MAIL:
         return kSbKeyMediaLaunchMail;
       case DIKS_CALCULATOR:
         return kSbKeyMediaLaunchApp2;
       case DIKS_POWER:
       case DIKS_POWER2:
         return kSbKeyPower;

       default: {
         // Follow through to switching on event.key_id.
       }
     }
   }

   switch (event.key_id) {
     case DIKI_BACKSPACE:
       return kSbKeyBack;
     case DIKI_DELETE:
       return kSbKeyDelete;
     case DIKI_TAB:
       return kSbKeyTab;
     case DIKI_ENTER:
     case DIKI_KP_ENTER:
       return kSbKeyReturn;
     case DIKI_SPACE:
       return kSbKeySpace;
     case DIKI_HOME:
       return kSbKeyHome;
     case DIKI_END:
       return kSbKeyEnd;
     case DIKI_PAGE_UP:
       return kSbKeyPrior;
     case DIKI_PAGE_DOWN:
       return kSbKeyNext;
     case DIKI_LEFT:
       return kSbKeyLeft;
     case DIKI_RIGHT:
       return kSbKeyRight;
     case DIKI_DOWN:
       return kSbKeyDown;
     case DIKI_UP:
       return kSbKeyUp;
     case DIKI_ESCAPE:
       return kSbKeyEscape;
     case DIKI_A:
       return kSbKeyA;
     case DIKI_B:
       return kSbKeyB;
     case DIKI_C:
       return kSbKeyC;
     case DIKI_D:
       return kSbKeyD;
     case DIKI_E:
       return kSbKeyE;
     case DIKI_F:
       return kSbKeyF;
     case DIKI_G:
       return kSbKeyG;
     case DIKI_H:
       return kSbKeyH;
     case DIKI_I:
       return kSbKeyI;
     case DIKI_J:
       return kSbKeyJ;
     case DIKI_K:
       return kSbKeyK;
     case DIKI_L:
       return kSbKeyL;
     case DIKI_M:
       return kSbKeyM;
     case DIKI_N:
       return kSbKeyN;
     case DIKI_O:
       return kSbKeyO;
     case DIKI_P:
       return kSbKeyP;
     case DIKI_Q:
       return kSbKeyQ;
     case DIKI_R:
       return kSbKeyR;
     case DIKI_S:
       return kSbKeyS;
     case DIKI_T:
       return kSbKeyT;
     case DIKI_U:
       return kSbKeyU;
     case DIKI_V:
       return kSbKeyV;
     case DIKI_W:
       return kSbKeyW;
     case DIKI_X:
       return kSbKeyX;
     case DIKI_Y:
       return kSbKeyY;
     case DIKI_Z:
       return kSbKeyZ;

     case DIKI_0:
     case DIKI_1:
     case DIKI_2:
     case DIKI_3:
     case DIKI_4:
     case DIKI_5:
     case DIKI_6:
     case DIKI_7:
     case DIKI_8:
     case DIKI_9:
       return static_cast<SbKey>(kSbKey0 + (event.key_id - DIKI_0));

     case DIKI_KP_0:
     case DIKI_KP_1:
     case DIKI_KP_2:
     case DIKI_KP_3:
     case DIKI_KP_4:
     case DIKI_KP_5:
     case DIKI_KP_6:
     case DIKI_KP_7:
     case DIKI_KP_8:
     case DIKI_KP_9:
       return static_cast<SbKey>(kSbKeyNumpad0 + (event.key_id - DIKI_KP_0));

     case DIKI_KP_MULT:
       return kSbKeyMultiply;
     case DIKI_KP_PLUS:
       return kSbKeyAdd;
     case DIKI_KP_SEPARATOR:
       return kSbKeySeparator;
     case DIKI_KP_MINUS:
       return kSbKeySubtract;
     case DIKI_KP_DECIMAL:
       return kSbKeyDecimal;
     case DIKI_KP_DIV:
       return kSbKeyDivide;
     case DIKI_KP_EQUAL:
     case DIKI_EQUALS_SIGN:
       return kSbKeyOemPlus;
     case DIKI_COMMA:
       return kSbKeyOemComma;
     case DIKI_MINUS_SIGN:
       return kSbKeyOemMinus;
     case DIKI_PERIOD:
       return kSbKeyOemPeriod;
     case DIKI_SEMICOLON:
       return kSbKeyOem1;
     case DIKI_SLASH:
       return kSbKeyOem2;
     case DIKI_QUOTE_LEFT:
       return kSbKeyOem3;
     case DIKI_BRACKET_LEFT:
       return kSbKeyOem4;
     case DIKI_BACKSLASH:
       return kSbKeyOem5;
     case DIKI_BRACKET_RIGHT:
       return kSbKeyOem6;
     case DIKI_QUOTE_RIGHT:
       return kSbKeyOem7;
     case DIKI_SHIFT_L:
     case DIKI_SHIFT_R:
       return kSbKeyShift;
     case DIKI_CONTROL_L:
     case DIKI_CONTROL_R:
       return kSbKeyControl;
     case DIKI_META_L:
     case DIKI_META_R:
     case DIKI_ALT_L:
     case DIKI_ALT_R:
       return kSbKeyMenu;
     case DIKI_PAUSE:
       return kSbKeyPause;
     case DIKI_CAPS_LOCK:
       return kSbKeyCapital;
     case DIKI_NUM_LOCK:
       return kSbKeyNumlock;
     case DIKI_SCROLL_LOCK:
       return kSbKeyScroll;
     case DIKI_PRINT:
       return kSbKeyPrint;
     case DIKI_INSERT:
       return kSbKeyInsert;
     case DIKI_SUPER_L:
       return kSbKeyLwin;
     case DIKI_SUPER_R:
       return kSbKeyRwin;
     case DIKI_F1:
     case DIKI_F2:
     case DIKI_F3:
     case DIKI_F4:
     case DIKI_F5:
     case DIKI_F6:
     case DIKI_F7:
     case DIKI_F8:
     case DIKI_F9:
     case DIKI_F10:
     case DIKI_F11:
     case DIKI_F12:
       return static_cast<SbKey>(kSbKeyF1 + (event.key_id - DIKI_F1));
     case DIKI_KP_F1:
     case DIKI_KP_F2:
     case DIKI_KP_F3:
     case DIKI_KP_F4:
       return static_cast<SbKey>(kSbKeyF1 + (event.key_id - DIKI_KP_F1));

     default: {
       SB_DLOG(WARNING) << "Unknown event.key_id: 0x" << std::hex
                        << event.key_id;
     }
   }

   return kSbKeyUnknown;
 }  // NOLINT(readability/fn_size)

 SbKeyLocation DFBKeyEventToSbKeyLocation(const DFBInputEvent& event) {
   SB_DCHECK(event.type == DIET_KEYPRESS || event.type == DIET_KEYRELEASE);
   SB_DCHECK(event.flags & DIEF_KEYID);

   switch (event.key_id) {
     case DIKI_SHIFT_L:
     case DIKI_CONTROL_L:
     case DIKI_META_L:
     case DIKI_ALT_L:
       return kSbKeyLocationLeft;
     case DIKI_SHIFT_R:
     case DIKI_CONTROL_R:
     case DIKI_META_R:
     case DIKI_ALT_R:
       return kSbKeyLocationRight;

     default: {}
   }

   return kSbKeyLocationUnspecified;
 }

 unsigned int DFBKeyEventToSbKeyModifiers(const DFBInputEvent& event) {
   unsigned int key_modifiers = kSbKeyModifiersNone;
   if (event.modifiers & DIMM_ALT) {
     key_modifiers |= kSbKeyModifiersAlt;
   }
   if (event.modifiers & DIMM_CONTROL) {
     key_modifiers |= kSbKeyModifiersCtrl;
   }
   if (event.modifiers & DIMM_SHIFT) {
     key_modifiers |= kSbKeyModifiersShift;
   }
   return key_modifiers;
 }

 }  // namespace

 ApplicationDirectFB::ApplicationDirectFB()
     : directfb_(NULL), window_(kSbWindowInvalid) {
   SbAudioSinkPrivate::Initialize();
 }

 ApplicationDirectFB::~ApplicationDirectFB() {
   SbAudioSinkPrivate::TearDown();
 }

 SbWindow ApplicationDirectFB::CreateWindow(const SbWindowOptions* options) {
   if (SbWindowIsValid(window_)) {
     // Cannot create a window if one is already created.
     return kSbWindowInvalid;
   }

   window_ = new SbWindowPrivate(GetDirectFB(), options);
   return window_;
 }

 bool ApplicationDirectFB::DestroyWindow(SbWindow window) {
   if (!SbWindowIsValid(window)) {
     return false;
   }
   if (window != window_) {
     return false;
   }

   delete window_;
   window_ = kSbWindowInvalid;

   return true;
 }

 IDirectFB* ApplicationDirectFB::GetDirectFB() {
   if (!directfb_) {
     // We only support one DirectFB device, so set it up and return it here.
     int argc = 0;
     if (DirectFBInit(&argc, NULL) != DFB_OK) {
       SB_NOTREACHED() << "Error calling DirectFBInit().";
     }

     // Setup DirectFB to not provide any default window background.
     DirectFBSetOption("bg-none", NULL);
     // Setup DirectFB to not show their default mouse cursor.
     DirectFBSetOption("no-cursor", NULL);

     // Create the DirectFB object.
     if (DirectFBCreate(&directfb_) != DFB_OK) {
       SB_NOTREACHED() << "Error calling DirectFBCreate().";
     }
     if (directfb_->SetCooperativeLevel(directfb_, DFSCL_NORMAL) != DFB_OK) {
       SB_NOTREACHED() << "Error calling SetCooperativeLevel().";
     }
   }
   return directfb_;
 }

 SbWindow ApplicationDirectFB::GetWindow() {
   return window_;
 }

 void ApplicationDirectFB::Initialize() {
 }

 namespace {

 #if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
 jmp_buf signal_jmp_buffer;

 void on_segv(int sig /*, siginfo_t *info, void *ucontext*/) {
   siglongjmp(signal_jmp_buffer, 1);
 }
 #endif  // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND

 }  // namespace

 void ApplicationDirectFB::Teardown() {
   SB_DCHECK(!SbWindowIsValid(window_));

   if (directfb_) {
     // DirectFB 1.7.7 has an uninitialized variable that causes
     // crashes at teardown time.
     // We swallow this crash here so that automated testing continues to
     // work.
     // See: http://lists.openembedded.org/pipermail/openembedded-core/2016-June/122843.html
     // We've also seen teardown problems on 1.2.x.
 #if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
     if (sigsetjmp(signal_jmp_buffer, 1)) {
       SB_LOG(WARNING) << "DirectFB segv during teardown. Expect memory leaks.";
       // Calling _exit here to skip atexit handlers because we've seen
       // directfb 1.2.10 hang on shutdown after this during an atexit handler.
       // Note we exit with success so unit tests pass.
       _exit(0);
     } else {
       struct sigaction sigaction_config;
       SbMemorySet(&sigaction_config, 0, sizeof(sigaction_config));

       sigaction_config.sa_handler = on_segv;
       sigemptyset(&sigaction_config.sa_mask);
       sigaction_config.sa_flags = 0;

       // Unblock SIGSEGV, which has been blocked earlier (perhaps by
       // libdirectfb)
       sigset_t set;
       sigemptyset(&set);
       sigaddset(&set, SIGSEGV);
       sigprocmask(SIG_UNBLOCK, &set, nullptr);

       int err = sigaction(SIGSEGV, &sigaction_config, nullptr);

       directfb_->Release(directfb_);
     }
 #else  // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
     directfb_->Release(directfb_);
 #endif  // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
     directfb_ = nullptr;
   }
 }

 shared::starboard::Application::Event*
 ApplicationDirectFB::PollNextSystemEvent() {
   DFBInputEvent dfb_event;
   if (window_->event_buffer->GetEvent(window_->event_buffer,
                                       DFB_EVENT(&dfb_event)) == DFB_OK) {
     return DFBEventToEvent(dfb_event);
   } else {
     return NULL;
   }
 }

 shared::starboard::Application::Event*
 ApplicationDirectFB::WaitForSystemEventWithTimeout(SbTime time) {
   unsigned int seconds = time / kSbTimeSecond;
   unsigned int milliseconds = (time % kSbTimeSecond) / kSbTimeMillisecond;
   window_->event_buffer->WaitForEventWithTimeout(window_->event_buffer, seconds,
                                                  milliseconds);

   return PollNextSystemEvent();
 }

 bool ApplicationDirectFB::MayHaveSystemEvents() {
   return SbWindowIsValid(window_);
 }

 void ApplicationDirectFB::WakeSystemEventWait() {
   if (IsCurrentThread()) {
     return;
   }

   SB_DCHECK(SbWindowIsValid(window_));

   // The window is valid, call WakeUp() to break out of
   // WaitForEventWithTimeout(), if a thread is waiting in that function right
   // now.
   window_->event_buffer->WakeUp(window_->event_buffer);
 }

 shared::starboard::Application::Event* ApplicationDirectFB::DFBEventToEvent(
     const DFBInputEvent& event) {
   const int kKeyboardDeviceId = 1;

   if (event.type == DIET_KEYPRESS || event.type == DIET_KEYRELEASE) {
     SB_DCHECK(event.flags & DIEF_KEYID);

     SbInputData* data = new SbInputData();
     SbMemorySet(data, 0, sizeof(*data));
 #if SB_API_VERSION >= 10
     data->timestamp = SbTimeGetMonotonicNow();
 #endif  // SB_API_VERSION >= 10
     data->window = window_;
     SB_DCHECK(SbWindowIsValid(data->window));
     data->type = (event.type == DIET_KEYPRESS ? kSbInputEventTypePress
                                               : kSbInputEventTypeUnpress);
     data->device_type = kSbInputDeviceTypeKeyboard;
     data->device_id = kKeyboardDeviceId;
     data->key = DFBKeyEventToSbKey(event);
     data->key_location = DFBKeyEventToSbKeyLocation(event);
     data->key_modifiers = DFBKeyEventToSbKeyModifiers(event);
     return new Event(kSbEventTypeInput, data, &DeleteDestructor<SbInputData>);
   }

   return NULL;
 }

 }  // namespace starboard
	// Copyright 2016 The Cobalt Authors. All Rights Reserved.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include "starboard/shared/directfb/application_directfb.h"

	#include <algorithm>
	#include <iomanip>

	#include <directfb/directfb_version.h> // NOLINT(build/include_order)

	// Anything less than 1.7.x needs special behavior on teardown.
	// Issue confirmed on 1.7.7, and separate issue perhaps seen on 1.2.x
	#define NEEDS_DIRECTFB_TEARDOWN_WORKAROUND \
	((DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION <= 7))

	#if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
	#include <setjmp.h>
	#include <signal.h>
	#include <unistd.h>
	#endif

	#include "starboard/input.h"
	#include "starboard/key.h"
	#include "starboard/log.h"
	#include "starboard/memory.h"
	#include "starboard/shared/directfb/window_internal.h"
	#include "starboard/shared/posix/time_internal.h"
	#include "starboard/shared/starboard/audio_sink/audio_sink_internal.h"
	#include "starboard/time.h"

	namespace starboard {

	namespace {

	SbKey DFBKeyEventToSbKey(const DFBInputEvent& event) {
	SB_DCHECK(event.type == DIET_KEYPRESS \|\| event.type == DIET_KEYRELEASE);
	SB_DCHECK(event.flags & DIEF_KEYID);

	// The following Starboard keys are currently not being generated by the code
	// below:
	// kSbKeyKana
	// kSbKeyHangul
	// kSbKeyHanja
	// kSbKeyKanji
	// kSbKeyConvert
	// kSbKeyNonconvert
	// kSbKeyDbeDbcschar
	// kSbKeyExecute
	// kSbKeyF13
	// kSbKeyF14
	// kSbKeyF15
	// kSbKeyF16
	// kSbKeyF17
	// kSbKeyF18
	// kSbKeyF19
	// kSbKeyF20
	// kSbKeyF21
	// kSbKeyF22
	// kSbKeyF23
	// kSbKeyF24
	// kSbKeyBrowserSearch
	// kSbKeyBrowserHome
	// kSbKeyMediaLaunchApp
	// kSbKeyWla
	// kSbKeyBrightnessDown
	// kSbKeyBrightnessUp
	// kSbKeyKbdBrightnessDown
	// kSbKeyKbdBrightnessUp
	// kSbKeyBrowserBack
	// kSbKeyBrowserForward
	// kSbKeyBrowserRefresh
	// kSbKeyBrowserStop
	// kSbKeyBrowserFavorites

	if (event.flags & DIEF_KEYSYMBOL) {
	switch (event.key_symbol) {
	case DIKS_CLEAR:
	return kSbKeyClear;
	case DIKS_SELECT:
	return kSbKeySelect;
	case DIKS_HELP:
	return kSbKeyHelp;
	case DIKS_MENU:
	return kSbKeyApps;

	// For supporting multimedia buttons on a USB keyboard.
	case DIKS_MUTE:
	return kSbKeyVolumeMute;
	case DIKS_VOLUME_DOWN:
	return kSbKeyVolumeDown;
	case DIKS_VOLUME_UP:
	return kSbKeyVolumeUp;
	case DIKS_NEXT:
	return kSbKeyMediaNextTrack;
	case DIKS_PREVIOUS:
	return kSbKeyMediaPrevTrack;
	case DIKS_STOP:
	return kSbKeyMediaStop;
	case DIKS_PLAY:
	return kSbKeyMediaPlayPause;
	case DIKS_MAIL:
	return kSbKeyMediaLaunchMail;
	case DIKS_CALCULATOR:
	return kSbKeyMediaLaunchApp2;
	case DIKS_POWER:
	case DIKS_POWER2:
	return kSbKeyPower;

	default: {
	// Follow through to switching on event.key_id.
	}
	}
	}

	switch (event.key_id) {
	case DIKI_BACKSPACE:
	return kSbKeyBack;
	case DIKI_DELETE:
	return kSbKeyDelete;
	case DIKI_TAB:
	return kSbKeyTab;
	case DIKI_ENTER:
	case DIKI_KP_ENTER:
	return kSbKeyReturn;
	case DIKI_SPACE:
	return kSbKeySpace;
	case DIKI_HOME:
	return kSbKeyHome;
	case DIKI_END:
	return kSbKeyEnd;
	case DIKI_PAGE_UP:
	return kSbKeyPrior;
	case DIKI_PAGE_DOWN:
	return kSbKeyNext;
	case DIKI_LEFT:
	return kSbKeyLeft;
	case DIKI_RIGHT:
	return kSbKeyRight;
	case DIKI_DOWN:
	return kSbKeyDown;
	case DIKI_UP:
	return kSbKeyUp;
	case DIKI_ESCAPE:
	return kSbKeyEscape;
	case DIKI_A:
	return kSbKeyA;
	case DIKI_B:
	return kSbKeyB;
	case DIKI_C:
	return kSbKeyC;
	case DIKI_D:
	return kSbKeyD;
	case DIKI_E:
	return kSbKeyE;
	case DIKI_F:
	return kSbKeyF;
	case DIKI_G:
	return kSbKeyG;
	case DIKI_H:
	return kSbKeyH;
	case DIKI_I:
	return kSbKeyI;
	case DIKI_J:
	return kSbKeyJ;
	case DIKI_K:
	return kSbKeyK;
	case DIKI_L:
	return kSbKeyL;
	case DIKI_M:
	return kSbKeyM;
	case DIKI_N:
	return kSbKeyN;
	case DIKI_O:
	return kSbKeyO;
	case DIKI_P:
	return kSbKeyP;
	case DIKI_Q:
	return kSbKeyQ;
	case DIKI_R:
	return kSbKeyR;
	case DIKI_S:
	return kSbKeyS;
	case DIKI_T:
	return kSbKeyT;
	case DIKI_U:
	return kSbKeyU;
	case DIKI_V:
	return kSbKeyV;
	case DIKI_W:
	return kSbKeyW;
	case DIKI_X:
	return kSbKeyX;
	case DIKI_Y:
	return kSbKeyY;
	case DIKI_Z:
	return kSbKeyZ;

	case DIKI_0:
	case DIKI_1:
	case DIKI_2:
	case DIKI_3:
	case DIKI_4:
	case DIKI_5:
	case DIKI_6:
	case DIKI_7:
	case DIKI_8:
	case DIKI_9:
	return static_cast<SbKey>(kSbKey0 + (event.key_id - DIKI_0));

	case DIKI_KP_0:
	case DIKI_KP_1:
	case DIKI_KP_2:
	case DIKI_KP_3:
	case DIKI_KP_4:
	case DIKI_KP_5:
	case DIKI_KP_6:
	case DIKI_KP_7:
	case DIKI_KP_8:
	case DIKI_KP_9:
	return static_cast<SbKey>(kSbKeyNumpad0 + (event.key_id - DIKI_KP_0));

	case DIKI_KP_MULT:
	return kSbKeyMultiply;
	case DIKI_KP_PLUS:
	return kSbKeyAdd;
	case DIKI_KP_SEPARATOR:
	return kSbKeySeparator;
	case DIKI_KP_MINUS:
	return kSbKeySubtract;
	case DIKI_KP_DECIMAL:
	return kSbKeyDecimal;
	case DIKI_KP_DIV:
	return kSbKeyDivide;
	case DIKI_KP_EQUAL:
	case DIKI_EQUALS_SIGN:
	return kSbKeyOemPlus;
	case DIKI_COMMA:
	return kSbKeyOemComma;
	case DIKI_MINUS_SIGN:
	return kSbKeyOemMinus;
	case DIKI_PERIOD:
	return kSbKeyOemPeriod;
	case DIKI_SEMICOLON:
	return kSbKeyOem1;
	case DIKI_SLASH:
	return kSbKeyOem2;
	case DIKI_QUOTE_LEFT:
	return kSbKeyOem3;
	case DIKI_BRACKET_LEFT:
	return kSbKeyOem4;
	case DIKI_BACKSLASH:
	return kSbKeyOem5;
	case DIKI_BRACKET_RIGHT:
	return kSbKeyOem6;
	case DIKI_QUOTE_RIGHT:
	return kSbKeyOem7;
	case DIKI_SHIFT_L:
	case DIKI_SHIFT_R:
	return kSbKeyShift;
	case DIKI_CONTROL_L:
	case DIKI_CONTROL_R:
	return kSbKeyControl;
	case DIKI_META_L:
	case DIKI_META_R:
	case DIKI_ALT_L:
	case DIKI_ALT_R:
	return kSbKeyMenu;
	case DIKI_PAUSE:
	return kSbKeyPause;
	case DIKI_CAPS_LOCK:
	return kSbKeyCapital;
	case DIKI_NUM_LOCK:
	return kSbKeyNumlock;
	case DIKI_SCROLL_LOCK:
	return kSbKeyScroll;
	case DIKI_PRINT:
	return kSbKeyPrint;
	case DIKI_INSERT:
	return kSbKeyInsert;
	case DIKI_SUPER_L:
	return kSbKeyLwin;
	case DIKI_SUPER_R:
	return kSbKeyRwin;
	case DIKI_F1:
	case DIKI_F2:
	case DIKI_F3:
	case DIKI_F4:
	case DIKI_F5:
	case DIKI_F6:
	case DIKI_F7:
	case DIKI_F8:
	case DIKI_F9:
	case DIKI_F10:
	case DIKI_F11:
	case DIKI_F12:
	return static_cast<SbKey>(kSbKeyF1 + (event.key_id - DIKI_F1));
	case DIKI_KP_F1:
	case DIKI_KP_F2:
	case DIKI_KP_F3:
	case DIKI_KP_F4:
	return static_cast<SbKey>(kSbKeyF1 + (event.key_id - DIKI_KP_F1));

	default: {
	SB_DLOG(WARNING) << "Unknown event.key_id: 0x" << std::hex
	<< event.key_id;
	}
	}

	return kSbKeyUnknown;
	} // NOLINT(readability/fn_size)

	SbKeyLocation DFBKeyEventToSbKeyLocation(const DFBInputEvent& event) {
	SB_DCHECK(event.type == DIET_KEYPRESS \|\| event.type == DIET_KEYRELEASE);
	SB_DCHECK(event.flags & DIEF_KEYID);

	switch (event.key_id) {
	case DIKI_SHIFT_L:
	case DIKI_CONTROL_L:
	case DIKI_META_L:
	case DIKI_ALT_L:
	return kSbKeyLocationLeft;
	case DIKI_SHIFT_R:
	case DIKI_CONTROL_R:
	case DIKI_META_R:
	case DIKI_ALT_R:
	return kSbKeyLocationRight;

	default: {}
	}

	return kSbKeyLocationUnspecified;
	}

	unsigned int DFBKeyEventToSbKeyModifiers(const DFBInputEvent& event) {
	unsigned int key_modifiers = kSbKeyModifiersNone;
	if (event.modifiers & DIMM_ALT) {
	key_modifiers \|= kSbKeyModifiersAlt;
	}
	if (event.modifiers & DIMM_CONTROL) {
	key_modifiers \|= kSbKeyModifiersCtrl;
	}
	if (event.modifiers & DIMM_SHIFT) {
	key_modifiers \|= kSbKeyModifiersShift;
	}
	return key_modifiers;
	}

	} // namespace

	ApplicationDirectFB::ApplicationDirectFB()
	: directfb_(NULL), window_(kSbWindowInvalid) {
	SbAudioSinkPrivate::Initialize();
	}

	ApplicationDirectFB::~ApplicationDirectFB() {
	SbAudioSinkPrivate::TearDown();
	}

	SbWindow ApplicationDirectFB::CreateWindow(const SbWindowOptions* options) {
	if (SbWindowIsValid(window_)) {
	// Cannot create a window if one is already created.
	return kSbWindowInvalid;
	}

	window_ = new SbWindowPrivate(GetDirectFB(), options);
	return window_;
	}

	bool ApplicationDirectFB::DestroyWindow(SbWindow window) {
	if (!SbWindowIsValid(window)) {
	return false;
	}
	if (window != window_) {
	return false;
	}

	delete window_;
	window_ = kSbWindowInvalid;

	return true;
	}

	IDirectFB* ApplicationDirectFB::GetDirectFB() {
	if (!directfb_) {
	// We only support one DirectFB device, so set it up and return it here.
	int argc = 0;
	if (DirectFBInit(&argc, NULL) != DFB_OK) {
	SB_NOTREACHED() << "Error calling DirectFBInit().";
	}

	// Setup DirectFB to not provide any default window background.
	DirectFBSetOption("bg-none", NULL);
	// Setup DirectFB to not show their default mouse cursor.
	DirectFBSetOption("no-cursor", NULL);

	// Create the DirectFB object.
	if (DirectFBCreate(&directfb_) != DFB_OK) {
	SB_NOTREACHED() << "Error calling DirectFBCreate().";
	}
	if (directfb_->SetCooperativeLevel(directfb_, DFSCL_NORMAL) != DFB_OK) {
	SB_NOTREACHED() << "Error calling SetCooperativeLevel().";
	}
	}
	return directfb_;
	}

	SbWindow ApplicationDirectFB::GetWindow() {
	return window_;
	}

	void ApplicationDirectFB::Initialize() {
	}

	namespace {

	#if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
	jmp_buf signal_jmp_buffer;

	void on_segv(int sig /, siginfo_t info, void ucontext/) {
	siglongjmp(signal_jmp_buffer, 1);
	}
	#endif // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND

	} // namespace

	void ApplicationDirectFB::Teardown() {
	SB_DCHECK(!SbWindowIsValid(window_));

	if (directfb_) {
	// DirectFB 1.7.7 has an uninitialized variable that causes
	// crashes at teardown time.
	// We swallow this crash here so that automated testing continues to
	// work.
	// See: http://lists.openembedded.org/pipermail/openembedded-core/2016-June/122843.html
	// We've also seen teardown problems on 1.2.x.
	#if NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
	if (sigsetjmp(signal_jmp_buffer, 1)) {
	SB_LOG(WARNING) << "DirectFB segv during teardown. Expect memory leaks.";
	// Calling _exit here to skip atexit handlers because we've seen
	// directfb 1.2.10 hang on shutdown after this during an atexit handler.
	// Note we exit with success so unit tests pass.
	_exit(0);
	} else {
	struct sigaction sigaction_config;
	SbMemorySet(&sigaction_config, 0, sizeof(sigaction_config));

	sigaction_config.sa_handler = on_segv;
	sigemptyset(&sigaction_config.sa_mask);
	sigaction_config.sa_flags = 0;

	// Unblock SIGSEGV, which has been blocked earlier (perhaps by
	// libdirectfb)
	sigset_t set;
	sigemptyset(&set);
	sigaddset(&set, SIGSEGV);
	sigprocmask(SIG_UNBLOCK, &set, nullptr);

	int err = sigaction(SIGSEGV, &sigaction_config, nullptr);

	directfb_->Release(directfb_);
	}
	#else // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
	directfb_->Release(directfb_);
	#endif // NEEDS_DIRECTFB_TEARDOWN_WORKAROUND
	directfb_ = nullptr;
	}
	}

	shared::starboard::Application::Event*
	ApplicationDirectFB::PollNextSystemEvent() {
	DFBInputEvent dfb_event;
	if (window_->event_buffer->GetEvent(window_->event_buffer,
	DFB_EVENT(&dfb_event)) == DFB_OK) {
	return DFBEventToEvent(dfb_event);
	} else {
	return NULL;
	}
	}

	shared::starboard::Application::Event*
	ApplicationDirectFB::WaitForSystemEventWithTimeout(SbTime time) {
	unsigned int seconds = time / kSbTimeSecond;
	unsigned int milliseconds = (time % kSbTimeSecond) / kSbTimeMillisecond;
	window_->event_buffer->WaitForEventWithTimeout(window_->event_buffer, seconds,
	milliseconds);

	return PollNextSystemEvent();
	}

	bool ApplicationDirectFB::MayHaveSystemEvents() {
	return SbWindowIsValid(window_);
	}

	void ApplicationDirectFB::WakeSystemEventWait() {
	if (IsCurrentThread()) {
	return;
	}

	SB_DCHECK(SbWindowIsValid(window_));

	// The window is valid, call WakeUp() to break out of
	// WaitForEventWithTimeout(), if a thread is waiting in that function right
	// now.
	window_->event_buffer->WakeUp(window_->event_buffer);
	}

	shared::starboard::Application::Event* ApplicationDirectFB::DFBEventToEvent(
	const DFBInputEvent& event) {
	const int kKeyboardDeviceId = 1;

	if (event.type == DIET_KEYPRESS \|\| event.type == DIET_KEYRELEASE) {
	SB_DCHECK(event.flags & DIEF_KEYID);

	SbInputData* data = new SbInputData();
	SbMemorySet(data, 0, sizeof(*data));
	#if SB_API_VERSION >= 10
	data->timestamp = SbTimeGetMonotonicNow();
	#endif // SB_API_VERSION >= 10
	data->window = window_;
	SB_DCHECK(SbWindowIsValid(data->window));
	data->type = (event.type == DIET_KEYPRESS ? kSbInputEventTypePress
	: kSbInputEventTypeUnpress);
	data->device_type = kSbInputDeviceTypeKeyboard;
	data->device_id = kKeyboardDeviceId;
	data->key = DFBKeyEventToSbKey(event);
	data->key_location = DFBKeyEventToSbKeyLocation(event);
	data->key_modifiers = DFBKeyEventToSbKeyModifiers(event);
	return new Event(kSbEventTypeInput, data, &DeleteDestructor<SbInputData>);
	}

	return NULL;
	}

	} // namespace starboard