HWC 1.1: hook up hotplug event, use new display config queries (1bd20e0f) · Commits · e / os / android_frameworks_native-old

services/surfaceflinger/DisplayHardware/HWComposer.cpp

+103 −13

Original line number	Original line	Diff line number	Diff line
	@@ -132,23 +132,21 @@ HWComposer::HWComposer(
	mCBContext->hwc = this;		mCBContext->hwc = this;
	mCBContext->procs.invalidate = &hook_invalidate;		mCBContext->procs.invalidate = &hook_invalidate;
	mCBContext->procs.vsync = &hook_vsync;		mCBContext->procs.vsync = &hook_vsync;
			if (hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1))
			mCBContext->procs.hotplug = &hook_hotplug;
			else
			mCBContext->procs.hotplug = NULL;
	memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));		memset(mCBContext->procs.zero, 0, sizeof(mCBContext->procs.zero));
	mHwc->registerProcs(mHwc, &mCBContext->procs);		mHwc->registerProcs(mHwc, &mCBContext->procs);
	}		}

	// always turn vsync off when we start		// always turn vsync off when we start
	needVSyncThread = false;		needVSyncThread = false;
	mHwc->eventControl(mHwc, 0, HWC_EVENT_VSYNC, 0);		mHwc->eventControl(mHwc, HWC_DISPLAY_PRIMARY, HWC_EVENT_VSYNC, 0);

	int period;
	if (mHwc->query(mHwc, HWC_VSYNC_PERIOD, &period) == NO_ERROR) {
	mDisplayData[HWC_DISPLAY_PRIMARY].refresh = nsecs_t(period);
	}

	// these IDs are always reserved		// these IDs are always reserved
	for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) {		for (size_t i=0 ; i<HWC_NUM_DISPLAY_TYPES ; i++) {
	mAllocatedDisplayIDs.markBit(i);		mAllocatedDisplayIDs.markBit(i);
	// TODO: we query xdpi / ydpi / refresh
	}		}

	// the number of displays we actually have depends on the		// the number of displays we actually have depends on the
	@@ -166,7 +164,9 @@ HWComposer::HWComposer(
	}		}

	if (fbDev) {		if (fbDev) {
	// if we're here it means we are on version 1.0		ALOG_ASSERT(!(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1)),
			"should only have fbdev if no hwc or hwc is 1.0");

	DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);		DisplayData& disp(mDisplayData[HWC_DISPLAY_PRIMARY]);
	disp.xdpi = fbDev->xdpi;		disp.xdpi = fbDev->xdpi;
	disp.ydpi = fbDev->ydpi;		disp.ydpi = fbDev->ydpi;
	@@ -176,8 +176,11 @@ HWComposer::HWComposer(
	}		}
	if (disp.refresh == 0) {		if (disp.refresh == 0) {
	disp.refresh = nsecs_t(1e9 / 60.0);		disp.refresh = nsecs_t(1e9 / 60.0);
	ALOGW("getting VSYNC period thin air: %lld", mDisplayData[HWC_DISPLAY_PRIMARY].refresh);		ALOGW("getting VSYNC period from thin air: %lld",
			mDisplayData[HWC_DISPLAY_PRIMARY].refresh);
	}		}
			} else if (mHwc) {
			queryDisplayProperties(HWC_DISPLAY_PRIMARY);
	}		}

	if (needVSyncThread) {		if (needVSyncThread) {
	@@ -207,24 +210,111 @@ void HWComposer::hook_invalidate(const struct hwc_procs* procs) {
	ctx->hwc->invalidate();		ctx->hwc->invalidate();
	}		}

	void HWComposer::hook_vsync(const struct hwc_procs* procs, int dpy,		void HWComposer::hook_vsync(const struct hwc_procs* procs, int disp,
	int64_t timestamp) {		int64_t timestamp) {
	cb_context* ctx = reinterpret_cast<cb_context*>(		cb_context* ctx = reinterpret_cast<cb_context*>(
	const_cast<hwc_procs_t*>(procs));		const_cast<hwc_procs_t*>(procs));
	ctx->hwc->vsync(dpy, timestamp);		ctx->hwc->vsync(disp, timestamp);
			}

			void HWComposer::hook_hotplug(const struct hwc_procs* procs, int disp,
			int connected) {
			cb_context* ctx = reinterpret_cast<cb_context*>(
			const_cast<hwc_procs_t*>(procs));
			ctx->hwc->hotplug(disp, connected);
	}		}

	void HWComposer::invalidate() {		void HWComposer::invalidate() {
	mFlinger->repaintEverything();		mFlinger->repaintEverything();
	}		}

	void HWComposer::vsync(int dpy, int64_t timestamp) {		void HWComposer::vsync(int disp, int64_t timestamp) {
	ATRACE_INT("VSYNC", ++mVSyncCount&1);		ATRACE_INT("VSYNC", ++mVSyncCount&1);
	mEventHandler.onVSyncReceived(dpy, timestamp);		mEventHandler.onVSyncReceived(disp, timestamp);
	Mutex::Autolock _l(mLock);		Mutex::Autolock _l(mLock);
	mLastHwVSync = timestamp;		mLastHwVSync = timestamp;
	}		}

			void HWComposer::hotplug(int disp, int connected) {
			if (disp == HWC_DISPLAY_PRIMARY \|\| disp >= HWC_NUM_DISPLAY_TYPES) {
			ALOGE("hotplug event received for invalid display: disp=%d connected=%d",
			disp, connected);
			return;
			}

			if (connected)
			queryDisplayProperties(disp);

			// TODO: tell someone else about this
			}

			static const uint32_t DISPLAY_ATTRIBUTES[] = {
			HWC_DISPLAY_VSYNC_PERIOD,
			HWC_DISPLAY_RESOLUTION_X,
			HWC_DISPLAY_RESOLUTION_Y,
			HWC_DISPLAY_DPI_X,
			HWC_DISPLAY_DPI_Y,
			HWC_DISPLAY_NO_ATTRIBUTE,
			};
			#define NUM_DISPLAY_ATTRIBUTES (sizeof(DISPLAY_ATTRIBUTES) / sizeof(DISPLAY_ATTRIBUTES)[0])

			// http://developer.android.com/reference/android/util/DisplayMetrics.html
			#define ANDROID_DENSITY_TV 213
			#define ANDROID_DENSITY_XHIGH 320

			void HWComposer::queryDisplayProperties(int disp) {
			ALOG_ASSERT(mHwc && hwcHasApiVersion(mHwc, HWC_DEVICE_API_VERSION_1_1));

			int32_t values[NUM_DISPLAY_ATTRIBUTES - 1];
			memset(values, 0, sizeof(values));

			uint32_t config;
			size_t numConfigs = 1;
			status_t err = mHwc->getDisplayConfigs(mHwc, disp, &config, &numConfigs);
			if (err == NO_ERROR) {
			mHwc->getDisplayAttributes(mHwc, disp, config, DISPLAY_ATTRIBUTES,
			values);
			}

			int32_t w = 0, h = 0;
			for (size_t i = 0; i < NUM_DISPLAY_ATTRIBUTES - 1; i++) {
			switch (DISPLAY_ATTRIBUTES[i]) {
			case HWC_DISPLAY_VSYNC_PERIOD:
			mDisplayData[disp].refresh = nsecs_t(values[i]);
			break;
			case HWC_DISPLAY_RESOLUTION_X:
			// TODO: we'll probably want to remember this eventually
			w = values[i];
			break;
			case HWC_DISPLAY_RESOLUTION_Y:
			// TODO: we'll probably want to remember this eventually
			h = values[i];
			break;
			case HWC_DISPLAY_DPI_X:
			mDisplayData[disp].xdpi = values[i] / 1000.0f;
			break;
			case HWC_DISPLAY_DPI_Y:
			mDisplayData[disp].ydpi = values[i] / 1000.0f;
			break;
			default:
			ALOG_ASSERT(false, "unknown display attribute %#x",
			DISPLAY_ATTRIBUTES[i]);
			break;
			}
			}

			if (mDisplayData[disp].xdpi == 0.0f \|\| mDisplayData[disp].ydpi == 0.0f) {
			// is there anything smarter we can do?
			if (h >= 1080) {
			mDisplayData[disp].xdpi = ANDROID_DENSITY_XHIGH;
			mDisplayData[disp].ydpi = ANDROID_DENSITY_XHIGH;
			} else {
			mDisplayData[disp].xdpi = ANDROID_DENSITY_TV;
			mDisplayData[disp].ydpi = ANDROID_DENSITY_TV;
			}
			}
			}

	int32_t HWComposer::allocateDisplayId() {		int32_t HWComposer::allocateDisplayId() {
	if (mAllocatedDisplayIDs.count() >= mNumDisplays) {		if (mAllocatedDisplayIDs.count() >= mNumDisplays) {
	return NO_MEMORY;		return NO_MEMORY;

services/surfaceflinger/DisplayHardware/HWComposer.h

+7 −3

Original line number	Original line	Diff line number	Diff line
	@@ -53,7 +53,7 @@ class HWComposer
	public:		public:
	class EventHandler {		class EventHandler {
	friend class HWComposer;		friend class HWComposer;
	virtual void onVSyncReceived(int dpy, nsecs_t timestamp) = 0;		virtual void onVSyncReceived(int disp, nsecs_t timestamp) = 0;
	protected:		protected:
	virtual ~EventHandler() {}		virtual ~EventHandler() {}
	};		};
	@@ -242,12 +242,16 @@ private:
	struct cb_context;		struct cb_context;

	static void hook_invalidate(const struct hwc_procs* procs);		static void hook_invalidate(const struct hwc_procs* procs);
	static void hook_vsync(const struct hwc_procs* procs, int dpy,		static void hook_vsync(const struct hwc_procs* procs, int disp,
	int64_t timestamp);		int64_t timestamp);
			static void hook_hotplug(const struct hwc_procs* procs, int disp,
			int connected);

	inline void invalidate();		inline void invalidate();
	inline void vsync(int dpy, int64_t timestamp);		inline void vsync(int disp, int64_t timestamp);
			inline void hotplug(int disp, int connected);

			void queryDisplayProperties(int disp);

	struct DisplayData {		struct DisplayData {
	DisplayData() : xdpi(0), ydpi(0), refresh(0),		DisplayData() : xdpi(0), ydpi(0), refresh(0),