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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_STRUCTURED_TYPE_H
     18 #define ANDROID_STRUCTURED_TYPE_H
     19 
     20 #include "rsElement.h"
     21 
     22 // ---------------------------------------------------------------------------
     23 namespace android {
     24 namespace renderscript {
     25 /*****************************************************************************
     26  * CAUTION
     27  *
     28  * Any layout changes for this class may require a corresponding change to be
     29  * made to frameworks/compile/libbcc/lib/ScriptCRT/rs_core.c, which contains
     30  * a partial copy of the information below.
     31  *
     32  *****************************************************************************/
     33 
     34 class Type : public ObjectBase {
     35 public:
     36     struct Hal {
     37         mutable void *drv;
     38 
     39         struct State {
     40             const Element * element;
     41 
     42             // Size of the structure in the various dimensions.  A missing Dimension is
     43             // specified as a 0 and not a 1.
     44             uint32_t dimX;
     45             uint32_t dimY;
     46             uint32_t dimZ;
     47             uint32_t *lodDimX;
     48             uint32_t *lodDimY;
     49             uint32_t *lodDimZ;
     50             uint32_t *lodOffset;
     51             uint32_t lodCount;
     52             uint32_t dimYuv;
     53             bool faces;
     54         };
     55         State state;
     56     };
     57     Hal mHal;
     58 
     59     Type * createTex2D(const Element *, size_t w, size_t h, bool mip);
     60 
     61     size_t getOffsetForFace(uint32_t face) const;
     62 
     63     size_t getSizeBytes() const {return mTotalSizeBytes;}
     64     size_t getElementSizeBytes() const {return mElement->getSizeBytes();}
     65     const Element * getElement() const {return mElement.get();}
     66 
     67     uint32_t getDimX() const {return mHal.state.dimX;}
     68     uint32_t getDimY() const {return mHal.state.dimY;}
     69     uint32_t getDimZ() const {return mHal.state.dimZ;}
     70     bool getDimLOD() const {return mDimLOD;}
     71     bool getDimFaces() const {return mHal.state.faces;}
     72     uint32_t getDimYuv() const {return mHal.state.dimYuv;}
     73 
     74     uint32_t getLODDimX(uint32_t lod) const {
     75         rsAssert(lod < mHal.state.lodCount);
     76         return mHal.state.lodDimX[lod];
     77     }
     78     uint32_t getLODDimY(uint32_t lod) const {
     79         rsAssert(lod < mHal.state.lodCount);
     80         return mHal.state.lodDimY[lod];
     81     }
     82     uint32_t getLODDimZ(uint32_t lod) const {
     83         rsAssert(lod < mHal.state.lodCount);
     84         return mHal.state.lodDimZ[lod];
     85     }
     86     uint32_t getLODOffset(uint32_t lod) const {
     87         rsAssert(lod < mHal.state.lodCount);
     88         return mHal.state.lodOffset[lod];
     89     }
     90     uint32_t getLODOffset(uint32_t lod, uint32_t x) const;
     91     uint32_t getLODOffset(uint32_t lod, uint32_t x, uint32_t y) const;
     92     uint32_t getLODOffset(uint32_t lod, uint32_t x, uint32_t y, uint32_t z) const;
     93 
     94     uint32_t getLODFaceOffset(uint32_t lod, RsAllocationCubemapFace face,
     95                               uint32_t x, uint32_t y) const;
     96 
     97     uint32_t getLODCount() const {return mHal.state.lodCount;}
     98     bool getIsNp2() const;
     99 
    100     void clear();
    101     void compute();
    102 
    103     void dumpLOGV(const char *prefix) const;
    104     virtual void serialize(Context *rsc, OStream *stream) const;
    105     virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_TYPE; }
    106     static Type *createFromStream(Context *rsc, IStream *stream);
    107 
    108     ObjectBaseRef<Type> cloneAndResize1D(Context *rsc, uint32_t dimX) const;
    109     ObjectBaseRef<Type> cloneAndResize2D(Context *rsc, uint32_t dimX, uint32_t dimY) const;
    110 
    111     static ObjectBaseRef<Type> getTypeRef(Context *rsc, const Element *e,
    112                                           uint32_t dimX, uint32_t dimY, uint32_t dimZ,
    113                                           bool dimLOD, bool dimFaces, uint32_t dimYuv);
    114 
    115     static Type* getType(Context *rsc, const Element *e,
    116                          uint32_t dimX, uint32_t dimY, uint32_t dimZ,
    117                          bool dimLOD, bool dimFaces, uint32_t yuv) {
    118         ObjectBaseRef<Type> type = getTypeRef(rsc, e, dimX, dimY, dimZ, dimLOD, dimFaces, yuv);
    119         type->incUserRef();
    120         return type.get();
    121     }
    122 
    123     void incRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
    124     void decRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
    125 
    126 protected:
    127     void makeLODTable();
    128     bool mDimLOD;
    129 
    130     // Internal structure from most to least significant.
    131     // * Array dimensions
    132     // * Faces
    133     // * Mipmaps
    134     // * xyz
    135 
    136     ObjectBaseRef<const Element> mElement;
    137 
    138     // count of mipmap levels, 0 indicates no mipmapping
    139 
    140     size_t mMipChainSizeBytes;
    141     size_t mTotalSizeBytes;
    142 protected:
    143     virtual void preDestroy() const;
    144     virtual ~Type();
    145 
    146 private:
    147     Type(Context *);
    148     Type(const Type &);
    149 };
    150 
    151 
    152 class TypeState {
    153 public:
    154     TypeState();
    155     ~TypeState();
    156 
    157     // Cache of all existing types.
    158     Vector<Type *> mTypes;
    159 };
    160 
    161 
    162 }
    163 }
    164 #endif //ANDROID_STRUCTURED_TYPE
    165