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      1 /*
      2  * Copyright (C) 2009 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_VERTEX_ARRAY_H
     18 #define ANDROID_VERTEX_ARRAY_H
     19 
     20 
     21 #include "rsObjectBase.h"
     22 
     23 // ---------------------------------------------------------------------------
     24 namespace android {
     25 namespace renderscript {
     26 
     27 class ShaderCache;
     28 
     29 // An element is a group of Components that occupies one cell in a structure.
     30 class VertexArray
     31 {
     32 public:
     33     VertexArray();
     34     virtual ~VertexArray();
     35 
     36 
     37     class Attrib {
     38     public:
     39         uint32_t buffer;
     40         uint32_t offset;
     41         uint32_t type;
     42         uint32_t size;
     43         uint32_t stride;
     44         bool normalized;
     45         String8 name;
     46         RsDataKind kind;
     47 
     48         Attrib();
     49         void set(const Attrib &);
     50         void clear();
     51     };
     52 
     53 
     54     void clearAll();
     55     void setActiveBuffer(uint32_t id) {mActiveBuffer = id;}
     56     void addUser(const Attrib &, uint32_t stride);
     57     void addLegacy(uint32_t type, uint32_t size, uint32_t stride, RsDataKind kind, bool normalized, uint32_t offset);
     58 
     59     void setupGL(const Context *rsc, class VertexArrayState *) const;
     60     void setupGL2(const Context *rsc, class VertexArrayState *, ShaderCache *) const;
     61     void logAttrib(uint32_t idx, uint32_t slot) const;
     62 
     63 protected:
     64     void clear(uint32_t index);
     65     uint32_t mActiveBuffer;
     66     uint32_t mCount;
     67 
     68     Attrib mAttribs[RS_MAX_ATTRIBS];
     69 };
     70 
     71 
     72 class VertexArrayState {
     73 public:
     74     void init(Context *);
     75 
     76     uint32_t mLastEnableCount;
     77     //VertexArray::Attrib mAttribs[VertexArray::_LAST];
     78 };
     79 
     80 
     81 }
     82 }
     83 #endif //ANDROID_LIGHT_H
     84 
     85 
     86 
     87