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 struct Hal { 34 mutable void *drv; 35 36 struct State { 37 // The difference between Textures and Constants is how they are accessed 38 // Texture lookups go though a sampler which in effect converts normalized 39 // coordinates into type specific. Multiple samples may also be taken 40 // and filtered. 41 // 42 // Constants are strictly accessed by the shader code 43 Allocation **textures; 44 RsTextureTarget *textureTargets; 45 uint32_t texturesCount; 46 47 Sampler **samplers; 48 uint32_t samplersCount; 49 50 Allocation **constants; 51 Type **constantTypes; 52 uint32_t constantsCount; 53 54 Element **inputElements; 55 uint32_t inputElementsCount; 56 }; 57 State state; 58 }; 59 Hal mHal; 60 61 Program(Context *, const char * shaderText, size_t shaderLength, 62 const uintptr_t * params, size_t paramLength); 63 virtual ~Program(); 64 virtual bool freeChildren(); 65 66 void bindAllocation(Context *, Allocation *, uint32_t slot); 67 isUserProgram()68 bool isUserProgram() const {return !mIsInternal;} 69 70 void bindTexture(Context *, uint32_t slot, Allocation *); 71 void bindSampler(Context *, uint32_t slot, Sampler *); 72 73 protected: 74 ObjectBaseRef<Allocation> *mTextures; 75 ObjectBaseRef<Sampler> *mSamplers; 76 ObjectBaseRef<Allocation> *mConstants; 77 ObjectBaseRef<Type> *mConstantTypes; 78 ObjectBaseRef<Element> *mInputElements; 79 80 bool mIsInternal; 81 const char *mUserShader; 82 size_t mUserShaderLen; 83 void initMemberVars(); 84 }; 85 86 } // namespace renderscript 87 } // namespace android 88 #endif // ANDROID_RS_PROGRAM_H 89 90 91 92