Make ANativeWindow available over stable AIDL (4b3e4a9b) · Commits · e / devices / smdk4412 / android_frameworks_native

aidl/gui/android/view/Surface.aidl

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -17,4 +17,4 @@

	package android.view;		package android.view;

	parcelable Surface cpp_header "gui/view/Surface.h";		@JavaOnlyStableParcelable @NdkOnlyStableParcelable parcelable Surface cpp_header "gui/view/Surface.h" ndk_header "android/native_window_aidl.h";

libs/gui/include/gui/Surface.h

+18 −0

Original line number	Original line	Diff line number	Diff line
	@@ -113,6 +113,24 @@ public:
	return surface != nullptr && surface->getIGraphicBufferProducer() != nullptr;		return surface != nullptr && surface->getIGraphicBufferProducer() != nullptr;
	}		}

			static sp<IGraphicBufferProducer> getIGraphicBufferProducer(ANativeWindow* window) {
			int val;
			if (window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &val) >= 0 &&
			val == NATIVE_WINDOW_SURFACE) {
			return ((Surface*) window)->mGraphicBufferProducer;
			}
			return nullptr;
			}

			static sp<IBinder> getSurfaceControlHandle(ANativeWindow* window) {
			int val;
			if (window->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &val) >= 0 &&
			val == NATIVE_WINDOW_SURFACE) {
			return ((Surface*) window)->mSurfaceControlHandle;
			}
			return nullptr;
			}

	/* Attaches a sideband buffer stream to the Surface's IGraphicBufferProducer.		/* Attaches a sideband buffer stream to the Surface's IGraphicBufferProducer.
	*		*
	* A sideband stream is a device-specific mechanism for passing buffers		* A sideband stream is a device-specific mechanism for passing buffers

libs/nativewindow/ANativeWindow.cpp

+48 −0

Original line number	Original line	Diff line number	Diff line
	@@ -20,10 +20,15 @@
	// from nativewindow/includes/system/window.h		// from nativewindow/includes/system/window.h
	// (not to be confused with the compatibility-only window.h from system/core/includes)		// (not to be confused with the compatibility-only window.h from system/core/includes)
	#include <system/window.h>		#include <system/window.h>
			#include <android/native_window_aidl.h>

	#include <private/android/AHardwareBufferHelpers.h>		#include <private/android/AHardwareBufferHelpers.h>

			#include <log/log.h>
	#include <ui/GraphicBuffer.h>		#include <ui/GraphicBuffer.h>
			#include <gui/Surface.h>
			#include <gui/view/Surface.h>
			#include <android/binder_libbinder.h>

	using namespace android;		using namespace android;

	@@ -59,6 +64,13 @@ static bool isDataSpaceValid(ANativeWindow* window, int32_t dataSpace) {
	return false;		return false;
	}		}
	}		}
			static sp<IGraphicBufferProducer> IGraphicBufferProducer_from_ANativeWindow(ANativeWindow* window) {
			return Surface::getIGraphicBufferProducer(window);
			}

			static sp<IBinder> SurfaceControlHandle_from_ANativeWindow(ANativeWindow* window) {
			return Surface::getSurfaceControlHandle(window);
			}

	/**************************************************************************************************		/**************************************************************************************************
	* NDK		* NDK
	@@ -350,6 +362,42 @@ int ANativeWindow_setAutoPrerotation(ANativeWindow* window, bool autoPrerotation
	return native_window_set_auto_prerotation(window, autoPrerotation);		return native_window_set_auto_prerotation(window, autoPrerotation);
	}		}

			binder_status_t ANativeWindow_readFromParcel(
			const AParcel* _Nonnull parcel, ANativeWindow* _Nullable* _Nonnull outWindow) {
			const Parcel* nativeParcel = AParcel_viewPlatformParcel(parcel);

			// Use a android::view::Surface to unparcel the window
			std::shared_ptr<android::view::Surface> shimSurface = std::shared_ptr<android::view::Surface>();
			status_t ret = shimSurface->readFromParcel(nativeParcel);
			if (ret != OK) {
			ALOGE("%s: Error: Failed to create android::view::Surface from AParcel", __FUNCTION__);
			return STATUS_BAD_VALUE;
			}
			sp<Surface> surface = sp<Surface>::make(
			shimSurface->graphicBufferProducer, false, shimSurface->surfaceControlHandle);
			ANativeWindow* anw = surface.get();
			ANativeWindow_acquire(anw);
			*outWindow = anw;
			return STATUS_OK;
			}

			binder_status_t ANativeWindow_writeToParcel(
			ANativeWindow* _Nonnull window, AParcel* _Nonnull parcel) {
			int value;
			int err = (*window->query)(window, NATIVE_WINDOW_CONCRETE_TYPE, &value);
			if (err != OK \|\| value != NATIVE_WINDOW_SURFACE) {
			ALOGE("Error: ANativeWindow is not backed by Surface");
			return STATUS_BAD_VALUE;
			}
			// Use a android::view::Surface to parcelize the window
			std::shared_ptr<android::view::Surface> shimSurface = std::shared_ptr<android::view::Surface>();
			shimSurface->graphicBufferProducer = IGraphicBufferProducer_from_ANativeWindow(window);
			shimSurface->surfaceControlHandle = SurfaceControlHandle_from_ANativeWindow(window);

			Parcel* nativeParcel = AParcel_viewPlatformParcel(parcel);
			return shimSurface->writeToParcel(nativeParcel);
			}

	/**************************************************************************************************		/**************************************************************************************************
	* apex-stable		* apex-stable
	**************************************************************************************************/		**************************************************************************************************/

libs/nativewindow/Android.bp

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -110,9 +110,11 @@ cc_library {
	static_libs: [		static_libs: [
	"libarect",		"libarect",
	"libgrallocusage",		"libgrallocusage",
			"libgui_aidl_static",
	],		],

	header_libs: [		header_libs: [
			"libgui_headers",
	"libarect_headers",		"libarect_headers",
	"libnativebase_headers",		"libnativebase_headers",
	"libnativewindow_headers",		"libnativewindow_headers",

libs/nativewindow/include/android/native_window.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -376,7 +376,7 @@ int32_t ANativeWindow_clearFrameRate(ANativeWindow* window)
	__INTRODUCED_IN(__ANDROID_API_U__);		__INTRODUCED_IN(__ANDROID_API_U__);

	#ifdef __cplusplus		#ifdef __cplusplus
	};		}
	#endif		#endif

	#endif // ANDROID_NATIVE_WINDOW_H		#endif // ANDROID_NATIVE_WINDOW_H