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Commit 16f0453f authored by Glenn Kasten's avatar Glenn Kasten
Browse files

Protected surface API 

To be used by DRM framework, implemented by display HAL

Change-Id: I054a07a94f4d5dbe792f3a597e2e49a100d90eb2
parent b7d342c6

include/surfaceflinger/ISurfaceComposer.h

+2 −0
Original line number Diff line number Diff line
@@ -44,6 +44,8 @@ public: 
        eSecure             = 0x00000080,

        eNonPremultiplied   = 0x00000100,

        eOpaque             = 0x00000400,

        eProtectedByApp     = 0x00000800,

        eProtectedByDRM     = 0x00001000,



        eFXSurfaceNormal    = 0x00000000,

        eFXSurfaceBlur      = 0x00010000,

include/ui/GraphicBuffer.h

+4 −2
Original line number Diff line number Diff line
@@ -57,6 +57,8 @@ public: 


        USAGE_SOFTWARE_MASK     = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,



        USAGE_PROTECTED         = GRALLOC_USAGE_PROTECTED,



        USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,

        USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,

        USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,

services/surfaceflinger/Layer.cpp

+8 −0
Original line number Diff line number Diff line
@@ -56,6 +56,8 @@ Layer::Layer(SurfaceFlinger* flinger, 
        mNeedsBlending(true),

        mNeedsDithering(false),

        mSecure(false),

        mProtectedByApp(false),

        mProtectedByDRM(false),

        mTextureManager(),

        mBufferManager(mTextureManager),

        mWidth(0), mHeight(0), mNeedsScaling(false), mFixedSize(false)
@@ -191,6 +193,8 @@ status_t Layer::setBuffers( uint32_t w, uint32_t h, 
    mReqHeight = h;



    mSecure = (flags & ISurfaceComposer::eSecure) ? true : false;

    mProtectedByApp = (flags & ISurfaceComposer::eProtectedByApp) ? true : false;

    mProtectedByDRM = (flags & ISurfaceComposer::eProtectedByDRM) ? true : false;

    mNeedsBlending = (info.h_alpha - info.l_alpha) > 0 &&

            (flags & ISurfaceComposer::eOpaque) == 0;
@@ -476,6 +480,10 @@ uint32_t Layer::getEffectiveUsage(uint32_t usage) const 
        // request EGLImage for all buffers

        usage |= GraphicBuffer::USAGE_HW_TEXTURE;

    }

    if (mProtectedByApp || mProtectedByDRM) {

        // need a hardware-protected path to external video sink

        usage |= GraphicBuffer::USAGE_PROTECTED;

    }

    return usage;

}

services/surfaceflinger/Layer.h

+5 −1
Original line number Diff line number Diff line
@@ -79,6 +79,8 @@ public: 
    virtual bool needsDithering() const     { return mNeedsDithering; }

    virtual bool needsFiltering() const;

    virtual bool isSecure() const           { return mSecure; }

    virtual bool isProtectedByApp() const   { return mProtectedByApp; }

    virtual bool isProtectedByDRM() const   { return mProtectedByDRM; }

    virtual sp<Surface> createSurface() const;

    virtual status_t ditch();

    virtual void onRemoved();
@@ -218,7 +220,9 @@ private: 
    bool mNeedsDithering;



    // page-flip thread (currently main thread)

    bool mSecure;

    bool mSecure;         // no screenshots

    bool mProtectedByApp; // application requires protected path to external sink

    bool mProtectedByDRM; // DRM agent requires protected path to external sink

    Region mPostedDirtyRegion;



    // page-flip thread and transaction thread (currently main thread)

services/surfaceflinger/LayerBase.h

+12 −0
Original line number Diff line number Diff line
@@ -196,6 +196,18 @@ public: 
     */

    virtual bool isSecure() const       { return false; }



    /**

     * isProtectedByApp - true if application says this surface is protected, that

     * is if it requires a hardware-protected data path to an external sink.

     */

    virtual bool isProtectedByApp() const   { return false; }



    /**

     * isProtectedByDRM - true if DRM agent says this surface is protected, that

     * is if it requires a hardware-protected data path to an external sink.

     */

    virtual bool isProtectedByDRM() const   { return false; }



    /** Called from the main thread, when the surface is removed from the

     * draw list */

    virtual status_t ditch() { return NO_ERROR; }