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_MESH_H 18 #define ANDROID_RS_MESH_H 19 20 21 #include "RenderScript.h" 22 23 // --------------------------------------------------------------------------- 24 namespace android { 25 namespace renderscript { 26 27 28 // An element is a group of Components that occupies one cell in a structure. 29 class Mesh : public ObjectBase { 30 public: 31 Mesh(Context *); 32 Mesh(Context *, uint32_t vertexBuffersCount, uint32_t primitivesCount); 33 ~Mesh(); 34 35 // Either mIndexBuffer, mPrimitiveBuffer or both could have a NULL reference 36 // If both are null, mPrimitive only would be used to render the mesh 37 struct Primitive_t { 38 ObjectBaseRef<Allocation> mIndexBuffer; 39 RsPrimitive mPrimitive; 40 }; 41 42 virtual void serialize(OStream *stream) const; getClassId()43 virtual RsA3DClassID getClassId() const { return RS_A3D_CLASS_ID_MESH; } 44 static Mesh *createFromStream(Context *rsc, IStream *stream); 45 void init(); 46 47 struct Hal { 48 mutable void *drv; 49 50 struct State { 51 // Contains vertex data 52 // Position, normal, texcoord, etc could either be strided in one allocation 53 // of provided separetely in multiple ones 54 ObjectBaseRef<Allocation> *vertexBuffers; 55 uint32_t vertexBuffersCount; 56 57 Primitive_t ** primitives; 58 uint32_t primitivesCount; 59 }; 60 State state; 61 }; 62 Hal mHal; 63 setVertexBuffer(Allocation * vb,uint32_t index)64 void setVertexBuffer(Allocation *vb, uint32_t index) { 65 mHal.state.vertexBuffers[index].set(vb); 66 } 67 setPrimitive(Allocation * idx,RsPrimitive prim,uint32_t index)68 void setPrimitive(Allocation *idx, RsPrimitive prim, uint32_t index) { 69 mHal.state.primitives[index]->mIndexBuffer.set(idx); 70 mHal.state.primitives[index]->mPrimitive = prim; 71 } 72 73 void render(Context *) const; 74 void renderPrimitive(Context *, uint32_t primIndex) const; 75 void renderPrimitiveRange(Context *, uint32_t primIndex, uint32_t start, uint32_t len) const; 76 void uploadAll(Context *); 77 78 // Bounding volumes 79 float mBBoxMin[3]; 80 float mBBoxMax[3]; 81 void computeBBox(); 82 protected: 83 bool mInitialized; 84 }; 85 86 class MeshContext { 87 public: MeshContext()88 MeshContext() { 89 } ~MeshContext()90 ~MeshContext() { 91 } 92 }; 93 94 } 95 } 96 #endif //ANDROID_RS_MESH_H 97 98 99 100