rsMesh.h revision ba4aa5c768a498bc3fbb8cb5547b7a9ad6f4b771 
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_RS_MESH_H
18#define ANDROID_RS_MESH_H
19
20
21#include "RenderScript.h"
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27
28// An element is a group of Components that occupies one cell in a structure.
29class Mesh : public ObjectBase
30{
31public:
32    Mesh(Context *);
33    ~Mesh();
34
35    // Contains vertex data
36    // Position, normal, texcoord, etc could either be strided in one allocation
37    // of provided separetely in multiple ones
38    ObjectBaseRef<Allocation> *mVertexBuffers;
39    uint32_t mVertexBufferCount;
40
41    // Either mIndexBuffer, mPrimitiveBuffer or both could have a NULL reference
42    // If both are null, mPrimitive only would be used to render the mesh
43    struct Primitive_t
44    {
45        ObjectBaseRef<Allocation> mIndexBuffer;
46
47        RsPrimitive mPrimitive;
48        uint32_t mGLPrimitive;
49    };
50
51    Primitive_t ** mPrimitives;
52    uint32_t mPrimitivesCount;
53
54    void render(Context *) const;
55    void renderPrimitive(Context *, uint32_t primIndex) const;
56    void renderPrimitiveRange(Context *, uint32_t primIndex, uint32_t start, uint32_t len) const;
57    void uploadAll(Context *);
58    void updateGLPrimitives();
59
60    virtual void serialize(OStream *stream) const;
61    virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_MESH; }
62    static Mesh *createFromStream(Context *rsc, IStream *stream);
63
64    // Bounding volumes
65    float mBBoxMin[3];
66    float mBBoxMax[3];
67    void computeBBox();
68
69protected:
70};
71
72class MeshContext
73{
74public:
75    MeshContext();
76    ~MeshContext();
77
78};
79
80
81}
82}
83#endif //ANDROID_RS_TRIANGLE_MESH_H
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