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      1 /*
      2  * Copyright (C) 2009-2011 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_RS_PROGRAM_RASTER_H
     18 #define ANDROID_RS_PROGRAM_RASTER_H
     19 
     20 #include "rsProgramBase.h"
     21 
     22 // ---------------------------------------------------------------------------
     23 namespace android {
     24 namespace renderscript {
     25 
     26 class ProgramRasterState;
     27 /*****************************************************************************
     28  * CAUTION
     29  *
     30  * Any layout changes for this class may require a corresponding change to be
     31  * made to frameworks/compile/libbcc/lib/ScriptCRT/rs_core.c, which contains
     32  * a partial copy of the information below.
     33  *
     34  *****************************************************************************/
     35 class ProgramRaster : public ProgramBase {
     36 public:
     37     struct Hal {
     38         mutable void *drv;
     39 
     40         struct State {
     41             bool pointSprite;
     42             RsCullMode cull;
     43         };
     44         State state;
     45     };
     46     Hal mHal;
     47 
     48     virtual void setup(const Context *, ProgramRasterState *);
     49     virtual void serialize(Context *rsc, OStream *stream) const;
     50     virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_PROGRAM_RASTER; }
     51     static ProgramRaster *createFromStream(Context *rsc, IStream *stream);
     52 
     53     static ObjectBaseRef<ProgramRaster> getProgramRaster(Context *rsc,
     54                                                          bool pointSprite,
     55                                                          RsCullMode cull);
     56 protected:
     57     virtual void preDestroy() const;
     58     virtual ~ProgramRaster();
     59 
     60 private:
     61     ProgramRaster(Context *rsc,
     62                   bool pointSprite,
     63                   RsCullMode cull);
     64 
     65 };
     66 
     67 class ProgramRasterState {
     68 public:
     69     ProgramRasterState();
     70     ~ProgramRasterState();
     71     void init(Context *rsc);
     72     void deinit(Context *rsc);
     73 
     74     ObjectBaseRef<ProgramRaster> mDefault;
     75     ObjectBaseRef<ProgramRaster> mLast;
     76 
     77     // Cache of all existing raster programs.
     78     Vector<ProgramRaster *> mRasterPrograms;
     79 };
     80 
     81 
     82 }
     83 }
     84 #endif
     85 
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     89