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