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
20import android.util.Log;
21
22
23/**
24 * @hide
25 * @deprecated in API 16
26 * Program raster is primarily used to specify whether point sprites are enabled and to control
27 * the culling mode. By default, back faces are culled.
28 **/
29public class ProgramRaster extends BaseObj {
30
31    /**
32     * @deprecated in API 16
33     **/
34    public enum CullMode {
35        /**
36         * @deprecated in API 16
37         **/
38        BACK (0),
39        /**
40         * @deprecated in API 16
41         **/
42        FRONT (1),
43        /**
44         * @deprecated in API 16
45         **/
46        NONE (2);
47
48        int mID;
49        CullMode(int id) {
50            mID = id;
51        }
52    }
53
54    boolean mPointSprite;
55    CullMode mCullMode;
56
57    ProgramRaster(int id, RenderScript rs) {
58        super(id, rs);
59
60        mPointSprite = false;
61        mCullMode = CullMode.BACK;
62    }
63
64    /**
65     * @deprecated in API 16
66     * Specifies whether vertices are rendered as screen aligned
67     * elements of a specified size
68     * @return whether point sprites are enabled
69     */
70    public boolean isPointSpriteEnabled() {
71        return mPointSprite;
72    }
73
74    /**
75     * @deprecated in API 16
76     * Specifies how triangles are culled based on their orientation
77     * @return cull mode
78     */
79    public CullMode getCullMode() {
80        return mCullMode;
81    }
82
83    /**
84     * @deprecated in API 16
85     */
86    public static ProgramRaster CULL_BACK(RenderScript rs) {
87        if(rs.mProgramRaster_CULL_BACK == null) {
88            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
89            builder.setCullMode(CullMode.BACK);
90            rs.mProgramRaster_CULL_BACK = builder.create();
91        }
92        return rs.mProgramRaster_CULL_BACK;
93    }
94
95    /**
96     * @deprecated in API 16
97     */
98    public static ProgramRaster CULL_FRONT(RenderScript rs) {
99        if(rs.mProgramRaster_CULL_FRONT == null) {
100            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
101            builder.setCullMode(CullMode.FRONT);
102            rs.mProgramRaster_CULL_FRONT = builder.create();
103        }
104        return rs.mProgramRaster_CULL_FRONT;
105    }
106
107    /**
108     * @deprecated in API 16
109     */
110    public static ProgramRaster CULL_NONE(RenderScript rs) {
111        if(rs.mProgramRaster_CULL_NONE == null) {
112            ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
113            builder.setCullMode(CullMode.NONE);
114            rs.mProgramRaster_CULL_NONE = builder.create();
115        }
116        return rs.mProgramRaster_CULL_NONE;
117    }
118
119    /**
120     * @deprecated in API 16
121     */
122    public static class Builder {
123        RenderScript mRS;
124        boolean mPointSprite;
125        CullMode mCullMode;
126
127        /**
128         * @deprecated in API 16
129         */
130        public Builder(RenderScript rs) {
131            mRS = rs;
132            mPointSprite = false;
133            mCullMode = CullMode.BACK;
134        }
135
136        /**
137         * @deprecated in API 16
138         */
139        public Builder setPointSpriteEnabled(boolean enable) {
140            mPointSprite = enable;
141            return this;
142        }
143
144        /**
145         * @deprecated in API 16
146         */
147        public Builder setCullMode(CullMode m) {
148            mCullMode = m;
149            return this;
150        }
151
152        /**
153         * @deprecated in API 16
154         */
155        public ProgramRaster create() {
156            mRS.validate();
157            int id = mRS.nProgramRasterCreate(mPointSprite, mCullMode.mID);
158            ProgramRaster programRaster = new ProgramRaster(id, mRS);
159            programRaster.mPointSprite = mPointSprite;
160            programRaster.mCullMode = mCullMode;
161            return programRaster;
162        }
163    }
164
165}
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