From ca5edbeba92b96913291792a4df984e158853b6d Mon Sep 17 00:00:00 2001 From: Mathias Agopian Date: Fri, 24 Sep 2010 11:26:58 -0700 Subject: add support for [1974164] Be able to take a screen shot on the device screenshots are taken using ISurfaceComposer::captureScreen() which returns the size of the screenshot and an IMemoryHeap containing the data. screenshots have limitations: - they will always fail if a secure window is up on screen - require GL_OES_framebuffer_object extension - in some situation, video planes won't been captured Change-Id: I741c68a2d2984fb139039301c3349e6780e2cd58 --- libs/surfaceflinger_client/ISurfaceComposer.cpp | 28 +++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'libs') diff --git a/libs/surfaceflinger_client/ISurfaceComposer.cpp b/libs/surfaceflinger_client/ISurfaceComposer.cpp index 5c111f6..040060e 100644 --- a/libs/surfaceflinger_client/ISurfaceComposer.cpp +++ b/libs/surfaceflinger_client/ISurfaceComposer.cpp @@ -124,6 +124,21 @@ public: remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply); } + virtual status_t captureScreen(DisplayID dpy, + sp* heap, + uint32_t* width, uint32_t* height, PixelFormat* format) + { + Parcel data, reply; + data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor()); + data.writeInt32(dpy); + remote()->transact(BnSurfaceComposer::CAPTURE_SCREEN, data, &reply); + *heap = interface_cast(reply.readStrongBinder()); + *width = reply.readInt32(); + *height = reply.readInt32(); + *format = reply.readInt32(); + return reply.readInt32(); + } + virtual void signal() const { Parcel data, reply; @@ -190,6 +205,19 @@ status_t BnSurfaceComposer::onTransact( sp b = getCblk()->asBinder(); reply->writeStrongBinder(b); } break; + case CAPTURE_SCREEN: { + CHECK_INTERFACE(ISurfaceComposer, data, reply); + DisplayID dpy = data.readInt32(); + sp heap; + uint32_t w, h; + PixelFormat f; + status_t res = captureScreen(dpy, &heap, &w, &h, &f); + reply->writeStrongBinder(heap->asBinder()); + reply->writeInt32(w); + reply->writeInt32(h); + reply->writeInt32(f); + reply->writeInt32(res); + } break; default: return BBinder::onTransact(code, data, reply, flags); } -- cgit v1.1