rsSampler.h revision afb743aca56c18beb7ab924e75cb6e070ef3e55a 
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_SAMPLER_H
18#define ANDROID_RS_SAMPLER_H
19
20#include "rsAllocation.h"
21#include "RenderScript.h"
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27const static uint32_t RS_MAX_SAMPLER_SLOT = 16;
28
29class SamplerState;
30
31class Sampler : public ObjectBase {
32public:
33    Sampler(Context *,
34            RsSamplerValue magFilter,
35            RsSamplerValue minFilter,
36            RsSamplerValue wrapS,
37            RsSamplerValue wrapT,
38            RsSamplerValue wrapR,
39            float aniso = 1.0f);
40
41    virtual ~Sampler();
42
43    void bind(Allocation *);
44    void setupGL(const Context *, const Allocation *);
45
46    void bindToContext(SamplerState *, uint32_t slot);
47    void unbindFromContext(SamplerState *);
48
49    virtual void serialize(OStream *stream) const;
50    virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_SAMPLER; }
51    static Sampler *createFromStream(Context *rsc, IStream *stream);
52
53protected:
54    RsSamplerValue mMagFilter;
55    RsSamplerValue mMinFilter;
56    RsSamplerValue mWrapS;
57    RsSamplerValue mWrapT;
58    RsSamplerValue mWrapR;
59    float mAniso;
60
61    int32_t mBoundSlot;
62
63private:
64    Sampler(Context *);
65};
66
67
68class SamplerState {
69public:
70    RsSamplerValue mMagFilter;
71    RsSamplerValue mMinFilter;
72    RsSamplerValue mWrapS;
73    RsSamplerValue mWrapT;
74    RsSamplerValue mWrapR;
75    float mAniso;
76
77    ObjectBaseRef<Sampler> mSamplers[RS_MAX_SAMPLER_SLOT];
78};
79
80}
81}
82#endif //ANDROID_RS_SAMPLER_H
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