rsProgram.h revision 7f126c78a107257090c6675ea40ffac41516a9dc 
1/*
2 * Copyright (C) 2011 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 "rsProgramBase.h"
21#include "rsElement.h"
22
23// ---------------------------------------------------------------------------
24namespace android {
25namespace renderscript {
26
27#define RS_SHADER_INTERNAL "//rs_shader_internal\n"
28#define RS_SHADER_ATTR "ATTRIB_"
29#define RS_SHADER_UNI "UNI_"
30
31class Program : public ProgramBase {
32public:
33
34    Program(Context *, const char * shaderText, uint32_t shaderLength,
35                       const uint32_t * params, uint32_t paramLength);
36    virtual ~Program();
37
38    void bindAllocation(Context *, Allocation *, uint32_t slot);
39
40    bool isUserProgram() const {return !mIsInternal;}
41
42    void bindTexture(Context *, uint32_t slot, Allocation *);
43    void bindSampler(Context *, uint32_t slot, Sampler *);
44
45    struct Hal {
46        mutable void *drv;
47
48        struct State {
49            // The difference between Textures and Constants is how they are accessed
50            // Texture lookups go though a sampler which in effect converts normalized
51            // coordinates into type specific.  Multiple samples may also be taken
52            // and filtered.
53            //
54            // Constants are strictly accessed by the shader code
55            ObjectBaseRef<Allocation> *textures;
56            RsTextureTarget *textureTargets;
57            uint32_t texturesCount;
58
59            ObjectBaseRef<Sampler> *samplers;
60            uint32_t samplersCount;
61
62            ObjectBaseRef<Allocation> *constants;
63            ObjectBaseRef<Type> *constantTypes;
64            uint32_t constantsCount;
65
66            ObjectBaseRef<Element> *inputElements;
67            uint32_t inputElementsCount;
68        };
69        State state;
70    };
71    Hal mHal;
72
73protected:
74    bool mIsInternal;
75    String8 mUserShader;
76    void initMemberVars();
77};
78
79}
80}
81#endif // ANDROID_RS_PROGRAM_H
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