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 #include <string>
23 
24 namespace android {
25 namespace renderscript {
26 
27 class Context;
28 
29 } // namespace renderscript
30 } // namespace android
31 
32 // An element is a group of Components that occupies one cell in a structure.
33 class RsdVertexArray {
34 public:
35     class Attrib {
36     public:
37         uint32_t buffer;
38         const uint8_t * ptr;
39         size_t offset;
40         uint32_t type;
41         uint32_t size;
42         uint32_t stride;
43         bool normalized;
44         std::string name;
45 
46         Attrib();
47         void clear();
48         void set(uint32_t type, uint32_t size, uint32_t stride, bool normalized, size_t offset, const char *name);
49     };
50 
51     RsdVertexArray(const Attrib *attribs, uint32_t numAttribs);
52     virtual ~RsdVertexArray();
53 
54     void setup(const android::renderscript::Context *rsc) const;
55     void logAttrib(uint32_t idx, uint32_t slot) const;
56 
57 protected:
58     void clear(uint32_t index);
59     uint32_t mActiveBuffer;
60     const uint8_t * mActivePointer;
61     uint32_t mCount;
62 
63     const Attrib *mAttribs;
64 };
65 
66 
67 class RsdVertexArrayState {
68 public:
69     RsdVertexArrayState();
70     ~RsdVertexArrayState();
71     void init(uint32_t maxAttrs);
72 
73     bool *mAttrsEnabled;
74     uint32_t mAttrsEnabledSize;
75 };
76 
77 
78 #endif //ANDROID_RSD_VERTEX_ARRAY_H
79 
80 
81 
82