ProgramFragment.java revision 22534176fb5c1257130ef4ee589739ca42766a32 
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.Config;
21import android.util.Log;
22
23
24/**
25 * @hide
26 *
27 **/
28public class ProgramFragment extends BaseObj {
29    public enum EnvMode {
30        REPLACE (0),
31        MODULATE (1),
32        DECAL (2);
33
34        int mID;
35        EnvMode(int id) {
36            mID = id;
37        }
38    }
39
40
41    ProgramFragment(int id, RenderScript rs) {
42        super(rs);
43        mID = id;
44    }
45
46    public void destroy() {
47        mRS.nProgramFragmentStoreDestroy(mID);
48        mID = 0;
49    }
50
51    public void bindTexture(Allocation va, int slot) {
52        mRS.nProgramFragmentBindTexture(mID, slot, va.mID);
53    }
54
55    public void bindSampler(RenderScript.Sampler vs, int slot) {
56        mRS.nProgramFragmentBindSampler(mID, slot, vs.mID);
57    }
58
59
60    public static class Builder {
61        public static final int MAX_SLOT = 2;
62        RenderScript mRS;
63        Element mIn;
64        Element mOut;
65
66        private class Slot {
67            Type mType;
68            EnvMode mEnv;
69            boolean mTexEnable;
70
71            Slot() {
72                mTexEnable = false;
73            }
74        }
75        Slot[] mSlots;
76
77        public Builder(RenderScript rs, Element in, Element out) {
78            mRS = rs;
79            mIn = in;
80            mOut = out;
81            mSlots = new Slot[MAX_SLOT];
82            for(int ct=0; ct < MAX_SLOT; ct++) {
83                mSlots[ct] = new Slot();
84            }
85        }
86
87        public void setType(int slot, Type t)
88            throws IllegalArgumentException {
89            if((slot < 0) || (slot >= MAX_SLOT)) {
90                throw new IllegalArgumentException("Slot ID out of range.");
91            }
92
93            mSlots[slot].mType = t;
94        }
95
96        public void setTexEnable(boolean enable, int slot)
97            throws IllegalArgumentException {
98            if((slot < 0) || (slot >= MAX_SLOT)) {
99                throw new IllegalArgumentException("Slot ID out of range.");
100            }
101
102            mSlots[slot].mTexEnable = enable;
103        }
104
105        public void setTexEnvMode(EnvMode env, int slot)
106            throws IllegalArgumentException {
107            if((slot < 0) || (slot >= MAX_SLOT)) {
108                throw new IllegalArgumentException("Slot ID out of range.");
109            }
110
111            mSlots[slot].mEnv = env;
112        }
113
114
115        static synchronized ProgramFragment internalCreate(RenderScript rs, Builder b) {
116            int inID = 0;
117            int outID = 0;
118            if (b.mIn != null) {
119                inID = b.mIn.mID;
120            }
121            if (b.mOut != null) {
122                outID = b.mOut.mID;
123            }
124            rs.nProgramFragmentBegin(inID, outID);
125            for(int ct=0; ct < MAX_SLOT; ct++) {
126                if(b.mSlots[ct].mTexEnable) {
127                    Slot s = b.mSlots[ct];
128                    if(s.mType != null) {
129                        rs.nProgramFragmentSetType(ct, s.mType.mID);
130                    }
131                    rs.nProgramFragmentSetTexEnable(ct, true);
132                    if(s.mEnv != null) {
133                        rs.nProgramFragmentSetEnvMode(ct, s.mEnv.mID);
134                    }
135                }
136            }
137
138
139            int id = rs.nProgramFragmentCreate();
140            return new ProgramFragment(id, rs);
141        }
142
143        public ProgramFragment create() {
144            return internalCreate(mRS, this);
145        }
146    }
147}
148
149
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151