1/*
2 * Copyright (C) 2012 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_SCRIPT_GROUP_H
18#define ANDROID_RS_SCRIPT_GROUP_H
19
20#include "rsScriptGroupBase.h"
21
22#include <vector>
23
24// ---------------------------------------------------------------------------
25namespace android {
26namespace renderscript {
27
28class Allocation;
29class Context;
30class ProgramVertex;
31class ProgramFragment;
32class ProgramRaster;
33class ProgramStore;
34class Script;
35class ScriptFieldID;
36class ScriptKernelID;
37class Type;
38
39class ScriptGroup : public ScriptGroupBase {
40public:
41    virtual SG_API_Version getApiVersion() const { return SG_V1; }
42    virtual void execute(Context *rsc);
43
44    std::vector<ObjectBaseRef<ScriptKernelID> > mKernels;
45
46    class Link {
47    public:
48        ObjectBaseRef<const ScriptKernelID> mSource;
49        ObjectBaseRef<const ScriptKernelID> mDstKernel;
50        ObjectBaseRef<const ScriptFieldID> mDstField;
51        ObjectBaseRef<const Type> mType;
52        ObjectBaseRef<Allocation> mAlloc;
53        Link();
54        ~Link();
55    };
56
57    class Node {
58    public:
59        explicit Node(Script *);
60
61        std::vector<const ScriptKernelID *> mKernels;
62        std::vector<Link *> mOutputs;
63        std::vector<Link *> mInputs;
64        bool mSeen;
65        int mOrder;
66        Script *mScript;
67    };
68
69    class IO {
70    public:
71        explicit IO(const ScriptKernelID *);
72
73        const ScriptKernelID *mKernel;
74        ObjectBaseRef<Allocation> mAlloc;
75    };
76
77    std::vector<Link *> mLinks;
78    std::vector<Node *> mNodes;
79    std::vector<IO *> mInputs;
80    std::vector<IO *> mOutputs;
81
82    static ScriptGroup * create(Context *rsc,
83                           ScriptKernelID ** kernels, size_t kernelsSize,
84                           ScriptKernelID ** src, size_t srcSize,
85                           ScriptKernelID ** dstK, size_t dstKSize,
86                           ScriptFieldID ** dstF, size_t dstFSize,
87                           const Type ** type, size_t typeSize);
88
89    void setInput(Context *rsc, ScriptKernelID *kid, Allocation *a);
90    void setOutput(Context *rsc, ScriptKernelID *kid, Allocation *a);
91
92protected:
93    virtual ~ScriptGroup();
94    bool mInitialized;
95
96
97private:
98    bool calcOrderRecurse(Node *n, int depth);
99    bool calcOrder();
100    Node * findNode(Script *s) const;
101    // Check if input/output Allocations are correctly set for a ScriptGroup.
102    // Send any error back to the client (app). Called before the ScriptGroup
103    // executes. Skips the exeuction if validation fails.
104    bool validateInputAndOutput(Context *);
105
106    explicit ScriptGroup(Context *);
107};
108
109
110} // namespace renderscript
111} // namespace android
112#endif
113
114