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 // --------------------------------------------------------------------------- 24 namespace android { 25 namespace renderscript { 26 27 #define RS_SHADER_INTERNAL "//rs_shader_internal\n" 28 #define RS_SHADER_ATTR "ATTRIB_" 29 #define RS_SHADER_UNI "UNI_" 30 31 class Program : public ProgramBase { 32 public: 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 isUserProgram()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 74 protected: 75 bool mIsInternal; 76 String8 mUserShader; 77 void initMemberVars(); 78 }; 79 80 } 81 } 82 #endif // ANDROID_RS_PROGRAM_H 83 84 85 86