1/*
2 * Copyright (C) 2008 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
17package android.renderscript;
18
19
20/**
21 * @hide
22 * @deprecated in API 16
23 * Program raster is primarily used to specify whether point sprites are enabled and to control
24 * the culling mode. By default, back faces are culled.
25 **/
26public class ProgramRaster extends BaseObj {
27
28    /**
29     * @deprecated in API 16
30     **/
31    public enum CullMode {
32        /**
33         * @deprecated in API 16
34         **/
35        BACK (0),
36        /**
37         * @deprecated in API 16
38         **/
39        FRONT (1),
40        /**
41         * @deprecated in API 16
42         **/
43        NONE (2);
44
45        int mID;
46        CullMode(int id) {
47            mID = id;
48        }
49    }
50
51    boolean mPointSprite;
52    CullMode mCullMode;
53
54    ProgramRaster(long id, RenderScript rs) {
55        super(id, rs);
56
57        mPointSprite = false;
58        mCullMode = CullMode.BACK;
59    }
60
61    /**
62     * @deprecated in API 16
63     * Specifies whether vertices are rendered as screen aligned
64     * elements of a specified size
65     * @return whether point sprites are enabled
66     */
67    public boolean isPointSpriteEnabled() {
68        return mPointSprite;
69    }
70
71    /**
72     * @deprecated in API 16
73     * Specifies how triangles are culled based on their orientation
74     * @return cull mode
75     */
76    public CullMode getCullMode() {
77        return mCullMode;
78    }
79
80    /**
81     * @deprecated in API 16
82     */
83    public static ProgramRaster CULL_BACK(RenderScript rs) {
84        if(rs.mProgramRaster_CULL_BACK == null) {
85            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
86            builder.setCullMode(CullMode.BACK);
87            rs.mProgramRaster_CULL_BACK = builder.create();
88        }
89        return rs.mProgramRaster_CULL_BACK;
90    }
91
92    /**
93     * @deprecated in API 16
94     */
95    public static ProgramRaster CULL_FRONT(RenderScript rs) {
96        if(rs.mProgramRaster_CULL_FRONT == null) {
97            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
98            builder.setCullMode(CullMode.FRONT);
99            rs.mProgramRaster_CULL_FRONT = builder.create();
100        }
101        return rs.mProgramRaster_CULL_FRONT;
102    }
103
104    /**
105     * @deprecated in API 16
106     */
107    public static ProgramRaster CULL_NONE(RenderScript rs) {
108        if(rs.mProgramRaster_CULL_NONE == null) {
109            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
110            builder.setCullMode(CullMode.NONE);
111            rs.mProgramRaster_CULL_NONE = builder.create();
112        }
113        return rs.mProgramRaster_CULL_NONE;
114    }
115
116    /**
117     * @deprecated in API 16
118     */
119    public static class Builder {
120        RenderScript mRS;
121        boolean mPointSprite;
122        CullMode mCullMode;
123
124        /**
125         * @deprecated in API 16
126         */
127        public Builder(RenderScript rs) {
128            mRS = rs;
129            mPointSprite = false;
130            mCullMode = CullMode.BACK;
131        }
132
133        /**
134         * @deprecated in API 16
135         */
136        public Builder setPointSpriteEnabled(boolean enable) {
137            mPointSprite = enable;
138            return this;
139        }
140
141        /**
142         * @deprecated in API 16
143         */
144        public Builder setCullMode(CullMode m) {
145            mCullMode = m;
146            return this;
147        }
148
149        /**
150         * @deprecated in API 16
151         */
152        public ProgramRaster create() {
153            mRS.validate();
154            long id = mRS.nProgramRasterCreate(mPointSprite, mCullMode.mID);
155            ProgramRaster programRaster = new ProgramRaster(id, mRS);
156            programRaster.mPointSprite = mPointSprite;
157            programRaster.mCullMode = mCullMode;
158            return programRaster;
159        }
160    }
161
162}
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