1 /* 2 * Copyright 2016, Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT license. 4 * 5 * Authors: 6 * Augustin Cavalier <waddlesplash> 7 * kerwizzy 8 */ 9 #ifndef FRACTALENGINE_H 10 #define FRACTALENGINE_H 11 12 #include <SupportDefs.h> 13 #include <Looper.h> 14 #include <Messenger.h> 15 16 class BBitmap; 17 18 19 #define MAX_RENDER_THREADS 16 20 21 22 class FractalEngine : public BLooper { 23 public: 24 enum { 25 MSG_CHANGE_SET = 'Frct', 26 MSG_SET_PALETTE, 27 MSG_SET_ITERATIONS, 28 MSG_RESIZE, 29 MSG_BUFFER_CREATED, 30 MSG_RENDER, 31 MSG_RENDER_COMPLETE, 32 MSG_THREAD_RENDER_COMPLETE, 33 }; 34 35 FractalEngine(BHandler* parent, BLooper* looper); 36 ~FractalEngine(); 37 38 virtual void MessageReceived(BMessage* msg); 39 void WriteToBitmap(BBitmap*); 40 41 private: 42 uint16 fWidth; 43 uint16 fHeight; 44 45 uint8* fRenderBuffer; 46 uint32 fRenderBufferLen; 47 48 BMessenger fMessenger; 49 50 uint8 fThreadCount; 51 thread_id fRenderThreads[MAX_RENDER_THREADS]; 52 sem_id fRenderSem; 53 sem_id fRenderStoppedSem; 54 55 bool fStopRender; 56 bool fRenderStopped; 57 58 double fLocationX; 59 double fLocationY; 60 double fSize; 61 62 uint16 fIterations; 63 64 const uint8* fColorset; 65 66 int32 (FractalEngine::*fDoSet)(double real, double imaginary); 67 68 void Render(double locationX, double locationY, double size); 69 void StopRender(); 70 static status_t RenderThread(void* data); 71 void RenderPixel(uint32 x, uint32 y); 72 73 int32 DoSet_Mandelbrot(double real, double imaginary); 74 int32 DoSet_BurningShip(double real, double imaginary); 75 int32 DoSet_Tricorn(double real, double imaginary); 76 int32 DoSet_Julia(double real, double imaginary); 77 int32 DoSet_OrbitTrap(double real, double imaginary); 78 int32 DoSet_Multibrot(double real, double imaginary); 79 }; 80 81 82 #endif /* FRACTALENGINE_H */ 83