rsProgram.h revision c7cec1e3577cc77a5a73d5bd5a82733b1b9936a1 
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    virtual bool freeChildren();
38
39    void bindAllocation(Context *, Allocation *, uint32_t slot);
40
41    bool isUserProgram() const {return !mIsInternal;}
42
43    void bindTexture(Context *, uint32_t slot, Allocation *);
44    void bindSampler(Context *, uint32_t slot, Sampler *);
45
46    struct Hal {
47        mutable void *drv;
48
49        struct State {
50            // The difference between Textures and Constants is how they are accessed
51            // Texture lookups go though a sampler which in effect converts normalized
52            // coordinates into type specific.  Multiple samples may also be taken
53            // and filtered.
54            //
55            // Constants are strictly accessed by the shader code
56            ObjectBaseRef<Allocation> *textures;
57            RsTextureTarget *textureTargets;
58            uint32_t texturesCount;
59
60            ObjectBaseRef<Sampler> *samplers;
61            uint32_t samplersCount;
62
63            ObjectBaseRef<Allocation> *constants;
64            ObjectBaseRef<Type> *constantTypes;
65            uint32_t constantsCount;
66
67            ObjectBaseRef<Element> *inputElements;
68            uint32_t inputElementsCount;
69        };
70        State state;
71    };
72    Hal mHal;
73
74protected:
75    bool mIsInternal;
76    String8 mUserShader;
77    void initMemberVars();
78};
79
80}
81}
82#endif // ANDROID_RS_PROGRAM_H
83
84
85
86