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      1 /*
      2 // Copyright(c)2014 IntelCorporation
      3 //
      4 // LicensedundertheApacheLicense,Version2.0(the"License");
      5 // youmaynotusethisfileexceptincompliancewiththeLicense.
      6 // YoumayobtainacopyoftheLicenseat
      7 //
      8 // http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unlessrequiredbyapplicablelaworagreedtoinwriting,software
     11 // distributedundertheLicenseisdistributedonan"ASIS"BASIS,
     12 // WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied.
     13 // SeetheLicenseforthespecificlanguagegoverningpermissionsand
     14 // limitationsundertheLicense.
     15 */
     16 #ifndef DISPLAYPLANEMANAGER_H_
     17 #define DISPLAYPLANEMANAGER_H_
     18 
     19 #include <common/utils/Dump.h>
     20 #include <DisplayPlane.h>
     21 #include <common/base/HwcLayer.h>
     22 #include <utils/Vector.h>
     23 
     24 namespace android {
     25 namespace intel {
     26 
     27 struct ZOrderLayer
     28 {
     29     ZOrderLayer() {
     30         memset(this, 0, sizeof(ZOrderLayer));
     31     }
     32 
     33     inline bool operator<(const ZOrderLayer& rhs) const {
     34         return zorder < rhs.zorder;
     35     }
     36 
     37     int planeType;
     38     int zorder;
     39     DisplayPlane *plane;
     40     HwcLayer *hwcLayer;
     41 };
     42 
     43 class ZOrderConfig : public SortedVector<ZOrderLayer*> {
     44 public:
     45     ZOrderConfig() {}
     46 
     47     int do_compare(const void* lhs, const void* rhs) const {
     48         const ZOrderLayer *l = *(ZOrderLayer**)lhs;
     49         const ZOrderLayer *r = *(ZOrderLayer**)rhs;
     50 
     51         // sorted from z order 0 to n
     52         return l->zorder - r->zorder;
     53     }
     54 };
     55 
     56 
     57 class DisplayPlaneManager {
     58 public:
     59     DisplayPlaneManager();
     60     virtual ~DisplayPlaneManager();
     61 
     62 public:
     63     virtual bool initialize();
     64     virtual void deinitialize();
     65 
     66     virtual bool isValidZOrder(int dsp, ZOrderConfig& config) = 0;
     67     virtual bool assignPlanes(int dsp, ZOrderConfig& config) = 0;
     68     // TODO: remove this API
     69     virtual void* getZOrderConfig() const = 0;
     70     virtual int getFreePlanes(int dsp, int type);
     71     virtual void reclaimPlane(int dsp, DisplayPlane& plane);
     72     virtual void disableReclaimedPlanes();
     73     virtual bool isOverlayPlanesDisabled();
     74     // dump interface
     75     virtual void dump(Dump& d);
     76 
     77 protected:
     78     // plane allocation & free
     79     int getPlane(uint32_t& mask);
     80     int getPlane(uint32_t& mask, int index);
     81     DisplayPlane* getPlane(int type, int index);
     82     DisplayPlane* getAnyPlane(int type);
     83     void putPlane(int index, uint32_t& mask);
     84     void putPlane(int dsp, DisplayPlane& plane);
     85     bool isFreePlane(int type, int index);
     86     virtual DisplayPlane* allocPlane(int index, int type) = 0;
     87 
     88 protected:
     89     int mPlaneCount[DisplayPlane::PLANE_MAX];
     90     int mTotalPlaneCount;
     91     int mPrimaryPlaneCount;
     92     int mSpritePlaneCount;
     93     int mOverlayPlaneCount;
     94     int mCursorPlaneCount;
     95 
     96     Vector<DisplayPlane*> mPlanes[DisplayPlane::PLANE_MAX];
     97 
     98     // Bitmap of free planes. Bit0 - plane A, bit 1 - plane B, etc.
     99     uint32_t mFreePlanes[DisplayPlane::PLANE_MAX];
    100     uint32_t mReclaimedPlanes[DisplayPlane::PLANE_MAX];
    101 
    102     bool mInitialized;
    103 
    104 enum {
    105     DEFAULT_PRIMARY_PLANE_COUNT = 3
    106 };
    107 };
    108 
    109 } // namespace intel
    110 } // namespace android
    111 
    112 #endif /* DISPLAYPLANEMANAGER_H_ */
    113