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annotate dmrender.h @ 62:baccf2044289

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Move the OpenGL rendering, setup etc. into a separate module/class, perhaps facilitating other types of renderers in future .. maybe.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 14 Dec 2019 16:39:20 +0200
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children d6ffc59bb84d
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baccf2044289 Move the OpenGL rendering, setup etc. into a separate module/class, perhaps
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1 //
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2 // GLDragon - OpenGL PLY model viewer / simple benchmark
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3 // -- Basic renderer template
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4 // Programmed and designed by Matti 'ccr' Hämäläinen <ccr@tnsp.org>
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5 // (C) Copyright 2019 Tecnic Software productions (TNSP)
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6 //
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7 // See file "COPYING" for license information.
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8 //
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9 #ifndef DMRENDER_H
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10 #define DMRENDER_H 1
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11
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12 #include "dmscene.h"
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13 #include <SDL.h>
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14
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15
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16 struct DMSimpleRenderer
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17 {
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18 bool useShaders;
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19
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20 DMSimpleRenderer()
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21 {
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22 useShaders = false;
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23 }
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24
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25 virtual bool checkErrors(void)
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26 {
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27 return true;
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28 }
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29
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30 virtual bool initRender1(void)
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31 {
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32 return false;
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33 }
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34
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35 virtual bool initRender2(SDL_Window *window)
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36 {
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37 (void) window;
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38 return false;
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39 }
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40
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41 virtual bool initRender3(const int width, const int height)
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42 {
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43 (void) width;
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44 (void) height;
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45
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46 return false;
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47 }
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48
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49 virtual void shutdownRenderer(void)
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50 {
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51 }
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52
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53 virtual void drawModel(const DMSimpleScene &scene, const DMModel &model, const float time)
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54 {
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55 (void) scene;
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56 (void) model;
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57 (void) time;
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58 }
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59
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60 virtual void drawScene(const DMSimpleScene &scene, const float time)
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61 {
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62 (void) scene;
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63 (void) time;
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64 }
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65
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66 virtual bool compileModelShaders(DMModel &model)
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67 {
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68 (void) model;
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69 return false;
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70 }
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71
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72 virtual bool compileSceneShaders(DMSimpleScene &scene)
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73 {
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74 if (useShaders)
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75 {
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76 for (DMModel &model : scene.models)
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77 {
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78 if (!compileModelShaders(model))
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79 return false;
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80 }
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81 }
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82 return true;
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83 }
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84
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85 virtual bool setupLight(const int n, DMLight &light)
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86 {
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87 (void) n;
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88 (void) light;
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89 return true;
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90 }
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91
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92 virtual bool setupLights(DMSimpleScene &scene)
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93 {
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94 for (size_t n = 0; n < scene.lights.size(); n++)
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95 {
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96 if (!setupLight(n, scene.lights[n]))
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97 return false;
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98 }
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99 return true;
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100 }
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101
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102 virtual bool setupCamera(DMCamera &camera)
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103 {
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104 (void) camera;
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105 return true;
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106 }
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107
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108 virtual bool animate(DMSimpleScene &scene, const float time)
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109 {
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110 (void) scene;
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111 (void) time;
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112 return true;
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113 }
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114 };
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115
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116 #endif