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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_FRAGMENT_H
18 #define ANDROID_RS_PROGRAM_FRAGMENT_H
19 
20 #include "rsProgram.h"
21 
22 // ---------------------------------------------------------------------------
23 namespace android {
24 namespace renderscript {
25 
26 class ProgramFragmentState;
27 
28 class ProgramFragment : public Program
29 {
30 public:
31     const static uint32_t MAX_TEXTURE = 2;
32 
33 
34 
35     ProgramFragment(Context *, Element *in, Element *out, bool pointSpriteEnable);
36     virtual ~ProgramFragment();
37 
38     virtual void setupGL(const Context *, ProgramFragmentState *);
39 
40 
41 
42     void bindTexture(uint32_t slot, Allocation *);
43     void bindSampler(uint32_t slot, Sampler *);
44     void setType(uint32_t slot, const Element *, uint32_t dim);
45 
46     void setEnvMode(uint32_t slot, RsTexEnvMode);
47     void setTexEnable(uint32_t slot, bool);
48 
49 
50 
51 protected:
52     // The difference between Textures and Constants is how they are accessed
53     // Texture lookups go though a sampler which in effect converts normalized
54     // coordinates into type specific.  Multiple samples may also be taken
55     // and filtered.
56     //
57     // Constants are strictly accessed by programetic loads.
58     ObjectBaseRef<Allocation> mTextures[MAX_TEXTURE];
59     ObjectBaseRef<Sampler> mSamplers[MAX_TEXTURE];
60     ObjectBaseRef<const Element> mTextureFormats[MAX_TEXTURE];
61     uint32_t mTextureDimensions[MAX_TEXTURE];
62 
63 
64     // Hacks to create a program for now
65     RsTexEnvMode mEnvModes[MAX_TEXTURE];
66     uint32_t mTextureEnableMask;
67     bool mPointSpriteEnable;
68 };
69 
70 class ProgramFragmentState
71 {
72 public:
73     ProgramFragmentState();
74     ~ProgramFragmentState();
75 
76     ProgramFragment *mPF;
77     void init(Context *rsc, int32_t w, int32_t h);
78     void deinit(Context *rsc);
79 
80     ObjectBaseRef<Type> mTextureTypes[ProgramFragment::MAX_TEXTURE];
81     ObjectBaseRef<ProgramFragment> mDefault;
82     Vector<ProgramFragment *> mPrograms;
83 
84     ObjectBaseRef<ProgramFragment> mLast;
85 };
86 
87 
88 }
89 }
90 #endif
91 
92 
93 
94 
95