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 22 // --------------------------------------------------------------------------- 23 namespace android { 24 namespace renderscript { 25 26 const static uint32_t RS_MAX_SAMPLER_SLOT = 16; 27 28 class SamplerState; 29 /***************************************************************************** 30 * CAUTION 31 * 32 * Any layout changes for this class may require a corresponding change to be 33 * made to frameworks/compile/libbcc/lib/ScriptCRT/rs_core.c, which contains 34 * a partial copy of the information below. 35 * 36 *****************************************************************************/ 37 class Sampler : public ObjectBase { 38 public: 39 struct Hal { 40 mutable void *drv; 41 42 struct State { 43 RsSamplerValue magFilter; 44 RsSamplerValue minFilter; 45 RsSamplerValue wrapS; 46 RsSamplerValue wrapT; 47 RsSamplerValue wrapR; 48 float aniso; 49 }; 50 State state; 51 }; 52 Hal mHal; 53 54 void operator delete(void* ptr); 55 56 static ObjectBaseRef<Sampler> getSampler(Context *, 57 RsSamplerValue magFilter, 58 RsSamplerValue minFilter, 59 RsSamplerValue wrapS, 60 RsSamplerValue wrapT, 61 RsSamplerValue wrapR, 62 float aniso = 1.0f); 63 void bindToContext(SamplerState *, uint32_t slot); 64 void unbindFromContext(SamplerState *); 65 66 virtual void serialize(Context *rsc, OStream *stream) const; getClassId()67 virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_SAMPLER; } 68 static Sampler *createFromStream(Context *rsc, IStream *stream); 69 70 protected: 71 int32_t mBoundSlot; 72 73 virtual void preDestroy() const; 74 virtual ~Sampler(); 75 76 private: 77 Sampler(Context *); 78 Sampler(Context *, 79 RsSamplerValue magFilter, 80 RsSamplerValue minFilter, 81 RsSamplerValue wrapS, 82 RsSamplerValue wrapT, 83 RsSamplerValue wrapR, 84 float aniso = 1.0f); 85 }; 86 87 88 class SamplerState { 89 public: 90 ObjectBaseRef<Sampler> mSamplers[RS_MAX_SAMPLER_SLOT]; init(Context * rsc)91 void init(Context *rsc) { 92 } deinit(Context * rsc)93 void deinit(Context *rsc) { 94 for (uint32_t i = 0; i < RS_MAX_SAMPLER_SLOT; i ++) { 95 mSamplers[i].clear(); 96 } 97 } 98 // Cache of all existing raster programs. 99 Vector<Sampler *> mAllSamplers; 100 }; 101 102 } 103 } 104 #endif //ANDROID_RS_SAMPLER_H 105 106 107 108