rsProgram.h revision cd50653f99c960e1a47c2c30e53b369b8805344a 
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 *);
37    Program(Context *, const char * shaderText, uint32_t shaderLength,
38                       const uint32_t * params, uint32_t paramLength);
39    virtual ~Program();
40
41    void bindAllocation(Allocation *);
42    virtual void createShader();
43
44    uint32_t getShaderID() const {return mShaderID;}
45    void setShader(const char *, uint32_t len);
46
47    uint32_t getAttribCount() const {return mAttribCount;}
48    uint32_t getUniformCount() const {return mUniformCount;}
49    const String8 & getAttribName(uint32_t i) const {return mAttribNames[i];}
50    const String8 & getUniformName(uint32_t i) const {return mUniformNames[i];}
51
52protected:
53    // Components not listed in "in" will be passed though
54    // unless overwritten by components in out.
55    ObjectBaseRef<Element> *mInputElements;
56    ObjectBaseRef<Element> *mOutputElements;
57    ObjectBaseRef<Type> *mConstantTypes;
58    uint32_t mInputCount;
59    uint32_t mOutputCount;
60    uint32_t mConstantCount;
61
62    ObjectBaseRef<Allocation> mConstants;
63
64    mutable bool mDirty;
65    String8 mShader;
66    String8 mUserShader;
67    uint32_t mShaderID;
68
69    uint32_t mTextureCount;
70    uint32_t mAttribCount;
71    uint32_t mUniformCount;
72    String8 mAttribNames[MAX_ATTRIBS];
73    String8 mUniformNames[MAX_UNIFORMS];
74
75    bool loadShader(Context *, uint32_t type);
76
77public:
78    void forceDirty() const {mDirty = true;}
79};
80
81
82
83}
84}
85#endif
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