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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_RSD_VERTEX_ARRAY_H
     18 #define ANDROID_RSD_VERTEX_ARRAY_H
     19 
     20 #include "rsUtils.h"
     21 
     22 namespace android {
     23 namespace renderscript {
     24 
     25 class Context;
     26 
     27 }
     28 }
     29 
     30 // An element is a group of Components that occupies one cell in a structure.
     31 class RsdVertexArray {
     32 public:
     33     class Attrib {
     34     public:
     35         uint32_t buffer;
     36         const uint8_t * ptr;
     37         size_t offset;
     38         uint32_t type;
     39         uint32_t size;
     40         uint32_t stride;
     41         bool normalized;
     42         android::String8 name;
     43 
     44         Attrib();
     45         void clear();
     46         void set(uint32_t type, uint32_t size, uint32_t stride, bool normalized, size_t offset, const char *name);
     47     };
     48 
     49     RsdVertexArray(const Attrib *attribs, uint32_t numAttribs);
     50     virtual ~RsdVertexArray();
     51 
     52     void setup(const android::renderscript::Context *rsc) const;
     53     void logAttrib(uint32_t idx, uint32_t slot) const;
     54 
     55 protected:
     56     void clear(uint32_t index);
     57     uint32_t mActiveBuffer;
     58     const uint8_t * mActivePointer;
     59     uint32_t mCount;
     60 
     61     const Attrib *mAttribs;
     62 };
     63 
     64 
     65 class RsdVertexArrayState {
     66 public:
     67     RsdVertexArrayState();
     68     ~RsdVertexArrayState();
     69     void init(uint32_t maxAttrs);
     70 
     71     bool *mAttrsEnabled;
     72     uint32_t mAttrsEnabledSize;
     73 };
     74 
     75 
     76 #endif //ANDROID_RSD_VERTEX_ARRAY_H
     77 
     78 
     79 
     80