1 /* 2 Copyright (c) 2013 yvt 3 4 This file is part of OpenSpades. 5 6 OpenSpades is free software: you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation, either version 3 of the License, or 9 (at your option) any later version. 10 11 OpenSpades is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with OpenSpades. If not, see <http://www.gnu.org/licenses/>. 18 19 */ 20 21 #pragma once 22 23 #include <vector> 24 #include <atomic> 25 26 #include <Core/Debug.h> 27 #include <Core/Math.h> 28 #include "IGLDevice.h" 29 30 namespace spades { 31 namespace client { 32 class GameMap; 33 } 34 namespace draw { 35 class GLRenderer; 36 class IGLDevice; 37 class GLAmbientShadowRenderer { 38 39 class UpdateDispatch; 40 enum { NumRays = 16, ChunkSize = 16, ChunkSizeBits = 4 }; 41 GLRenderer *renderer; 42 IGLDevice *device; 43 client::GameMap *map; 44 Vector3 rays[NumRays]; 45 46 struct Chunk { 47 int cx, cy, cz; 48 float data[ChunkSize][ChunkSize][ChunkSize]; 49 bool dirty = true; 50 int dirtyMinX = 0, dirtyMaxX = ChunkSize - 1; 51 int dirtyMinY = 0, dirtyMaxY = ChunkSize - 1; 52 int dirtyMinZ = 0, dirtyMaxZ = ChunkSize - 1; 53 54 std::atomic<bool> transferDone {true}; 55 }; 56 57 IGLDevice::UInteger texture; 58 59 int w, h, d; 60 int chunkW, chunkH, chunkD; 61 62 std::vector<Chunk> chunks; 63 GetChunk(int cx,int cy,int cz)64 inline Chunk &GetChunk(int cx, int cy, int cz) { 65 SPAssert(cx >= 0); 66 SPAssert(cx < chunkW); 67 SPAssert(cy >= 0); 68 SPAssert(cy < chunkH); 69 SPAssert(cz >= 0); 70 SPAssert(cz < chunkD); 71 return chunks[(cx + cy * chunkW) * chunkD + cz]; 72 } 73 GetChunkWrapped(int cx,int cy,int cz)74 inline Chunk &GetChunkWrapped(int cx, int cy, int cz) { 75 // FIXME: support for non-POT dimensions? 76 return GetChunk(cx & (chunkW - 1), cy & (chunkH - 1), cz); 77 } 78 79 void Invalidate(int minX, int minY, int minZ, int maxX, int maxY, int maxZ); 80 81 void UpdateChunk(int cx, int cy, int cz); 82 void UpdateDirtyChunks(); 83 int GetNumDirtyChunks(); 84 85 UpdateDispatch *dispatch; 86 87 public: 88 GLAmbientShadowRenderer(GLRenderer *renderer, client::GameMap *map); 89 ~GLAmbientShadowRenderer(); 90 91 float Evaluate(IntVector3); 92 93 void GameMapChanged(int x, int y, int z, client::GameMap *); 94 95 void Update(); 96 GetTexture()97 IGLDevice::UInteger GetTexture() { return texture; } 98 }; 99 } 100 } 101