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_RS_PATH_H
18#define ANDROID_RS_PATH_H
19
20
21#include "rsObjectBase.h"
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27class Path : public ObjectBase {
28public:
29    struct {
30        mutable void * drv;
31
32        struct State {
33            RsPathPrimitive primitive;
34            float quality;
35        };
36        State state;
37    } mHal;
38
39    Path(Context *);
40    Path(Context *, uint32_t vertexBuffersCount, uint32_t primitivesCount);
41    Path(Context *, RsPathPrimitive pp, bool isStatic, Allocation *vtx, Allocation *loop, float q);
42
43    ~Path();
44
45    void render(Context *);
46    virtual void serialize(Context *rsc, OStream *stream) const;
47    virtual RsA3DClassID getClassId() const;
48
49private:
50
51
52    typedef struct {
53        float x[4];
54        float y[4];
55    } BezierSegment_t;
56
57    bool subdivideCheck(const BezierSegment_t *s, float u1, float u2);
58
59    void rasterize(const BezierSegment_t *s, uint32_t num, Allocation *alloc);
60
61
62};
63
64}
65}
66#endif //ANDROID_RS_PATH_H
67
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70