rsProgram.h revision f2a5d7326b38e5a28b6618f9b1e5a021aef7179f 
1/*
2 * Copyright (C) 2009 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_PROGRAM_H
18#define ANDROID_RS_PROGRAM_H
19
20#include "rsObjectBase.h"
21#include "rsElement.h"
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27
28class ShaderCache;
29
30class Program : public ObjectBase
31{
32public:
33    const static uint32_t MAX_ATTRIBS = 8;
34    const static uint32_t MAX_UNIFORMS = 16;
35
36    Program(Context *, Element *in, Element *out);
37    virtual ~Program();
38
39    void bindAllocation(Allocation *);
40    virtual void createShader();
41
42    uint32_t getShaderID() const {return mShaderID;}
43    void setShader(const char *, uint32_t len);
44
45    uint32_t getAttribCount() const {return mAttribCount;}
46    uint32_t getUniformCount() const {return mUniformCount;}
47    const String8 & getAttribName(uint32_t i) const {return mAttribNames[i];}
48    const String8 & getUniformName(uint32_t i) const {return mUniformNames[i];}
49
50protected:
51    // Components not listed in "in" will be passed though
52    // unless overwritten by components in out.
53    ObjectBaseRef<Element> mElementIn;
54    ObjectBaseRef<Element> mElementOut;
55
56    ObjectBaseRef<Allocation> mConstants;
57
58    mutable bool mDirty;
59    String8 mShader;
60    String8 mUserShader;
61    uint32_t mShaderID;
62
63    uint32_t mAttribCount;
64    uint32_t mUniformCount;
65    String8 mAttribNames[MAX_ATTRIBS];
66    String8 mUniformNames[MAX_UNIFORMS];
67
68    bool loadShader(uint32_t type);
69
70public:
71    void forceDirty() const {mDirty = true;}
72};
73
74
75
76}
77}
78#endif
79
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82