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      1 /*
      2  * Copyright (C) 2011 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             bool faces;
     53         };
     54         State state;
     55     };
     56     Hal mHal;
     57 
     58     Type * createTex2D(const Element *, size_t w, size_t h, bool mip);
     59 
     60     size_t getOffsetForFace(uint32_t face) const;
     61 
     62     size_t getSizeBytes() const {return mTotalSizeBytes;}
     63     size_t getElementSizeBytes() const {return mElement->getSizeBytes();}
     64     const Element * getElement() const {return mElement.get();}
     65 
     66     uint32_t getDimX() const {return mHal.state.dimX;}
     67     uint32_t getDimY() const {return mHal.state.dimY;}
     68     uint32_t getDimZ() const {return mHal.state.dimZ;}
     69     bool getDimLOD() const {return mDimLOD;}
     70     bool getDimFaces() const {return mHal.state.faces;}
     71 
     72     uint32_t getLODDimX(uint32_t lod) const {
     73         rsAssert(lod < mHal.state.lodCount);
     74         return mHal.state.lodDimX[lod];
     75     }
     76     uint32_t getLODDimY(uint32_t lod) const {
     77         rsAssert(lod < mHal.state.lodCount);
     78         return mHal.state.lodDimY[lod];
     79     }
     80     uint32_t getLODDimZ(uint32_t lod) const {
     81         rsAssert(lod < mHal.state.lodCount);
     82         return mHal.state.lodDimZ[lod];
     83     }
     84     uint32_t getLODOffset(uint32_t lod) const {
     85         rsAssert(lod < mHal.state.lodCount);
     86         return mHal.state.lodOffset[lod];
     87     }
     88     uint32_t getLODOffset(uint32_t lod, uint32_t x) const;
     89     uint32_t getLODOffset(uint32_t lod, uint32_t x, uint32_t y) const;
     90     uint32_t getLODOffset(uint32_t lod, uint32_t x, uint32_t y, uint32_t z) const;
     91 
     92     uint32_t getLODFaceOffset(uint32_t lod, RsAllocationCubemapFace face,
     93                               uint32_t x, uint32_t y) const;
     94 
     95     uint32_t getLODCount() const {return mHal.state.lodCount;}
     96     bool getIsNp2() const;
     97 
     98     void clear();
     99     void compute();
    100 
    101     void dumpLOGV(const char *prefix) const;
    102     virtual void serialize(OStream *stream) const;
    103     virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_TYPE; }
    104     static Type *createFromStream(Context *rsc, IStream *stream);
    105 
    106     ObjectBaseRef<Type> cloneAndResize1D(Context *rsc, uint32_t dimX) const;
    107     ObjectBaseRef<Type> cloneAndResize2D(Context *rsc, uint32_t dimX, uint32_t dimY) const;
    108 
    109     static ObjectBaseRef<Type> getTypeRef(Context *rsc, const Element *e,
    110                                           uint32_t dimX, uint32_t dimY, uint32_t dimZ,
    111                                           bool dimLOD, bool dimFaces);
    112 
    113     static Type* getType(Context *rsc, const Element *e,
    114                          uint32_t dimX, uint32_t dimY, uint32_t dimZ,
    115                          bool dimLOD, bool dimFaces) {
    116         ObjectBaseRef<Type> type = getTypeRef(rsc, e, dimX, dimY, dimZ, dimLOD, dimFaces);
    117         type->incUserRef();
    118         return type.get();
    119     }
    120 
    121     void incRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
    122     void decRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
    123 
    124 protected:
    125     void makeLODTable();
    126     bool mDimLOD;
    127 
    128     // Internal structure from most to least significant.
    129     // * Array dimensions
    130     // * Faces
    131     // * Mipmaps
    132     // * xyz
    133 
    134     ObjectBaseRef<const Element> mElement;
    135 
    136     // count of mipmap levels, 0 indicates no mipmapping
    137 
    138     size_t mMipChainSizeBytes;
    139     size_t mTotalSizeBytes;
    140 protected:
    141     virtual void preDestroy() const;
    142     virtual ~Type();
    143 
    144 private:
    145     Type(Context *);
    146     Type(const Type &);
    147 };
    148 
    149 
    150 class TypeState {
    151 public:
    152     TypeState();
    153     ~TypeState();
    154 
    155     // Cache of all existing types.
    156     Vector<Type *> mTypes;
    157 };
    158 
    159 
    160 }
    161 }
    162 #endif //ANDROID_STRUCTURED_TYPE
    163