annotate test/testdyngl.c @ 2825:620a91b6d263

Date: Tue, 02 Dec 2008 23:38:26 +0100 From: Couriersud Subject: Re: SDL: Keyboard layout unknown I have attached a diff which will add an additional keyboard layout to the x11 driver. The issue arose, when I moved to ubuntu intrepid. I was only able to map the keys available on my keyboard. The differences to the existing keyboard was the mapping of HOME,UP,DOWN and some other keys. Now only one issue remains. Dead keys (e.g. ^, ` ') on european keyboards do not generate a "scancode" event. Just a text event when the key is composed (e.g. ?? ?? ??).
author Sam Lantinga <slouken@libsdl.org>
date Wed, 03 Dec 2008 04:32:24 +0000
parents 204be4fc2726
children 8d0889509afb
rev   line source
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1 /*
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2 * Small SDL example to demonstrate dynamically loading
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3 * OpenGL lib and functions
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4 *
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5 * (FYI it was supposed to look like snow in the wind or something...)
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6 *
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7 * Compile with :
847
0afe0e38e02c *** empty log message ***
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8 * gcc testdyngl.c `sdl-config --libs --cflags` -o testdyngl -DHAVE_OPENGL
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9 *
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10 * You can specify a different OpenGL lib on the command line, i.e. :
7b255f0290da Added a test program for dynamically loading OpenGL
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11 * ./testdyngl /usr/X11R6/lib/libGL.so.1.2
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12 * or
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13 * ./testdyngl /usr/lib/libGL.so.1.0.4496
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14 *
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15 */
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16
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17 #include <stdio.h>
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18 #include <stdlib.h>
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19
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20 #include "SDL.h"
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21
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22 #ifdef __MACOS__
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23 #define HAVE_OPENGL
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24 #endif
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25
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26 #ifdef HAVE_OPENGL
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27
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28 #include "SDL_opengl.h"
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29
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30 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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31 static void
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32 quit(int rc)
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33 {
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34 SDL_Quit();
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35 exit(rc);
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36 }
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37
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38 void *
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39 get_funcaddr(const char *p)
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40 {
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41 void *f = SDL_GL_GetProcAddress(p);
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42 if (f) {
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43 return f;
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44 } else {
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45 printf("Unable to get function pointer for %s\n", p);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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46 quit(1);
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47 }
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48 return NULL;
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49 }
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50
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51 typedef struct
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52 {
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53 void (APIENTRY * glBegin) (GLenum);
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54 void (APIENTRY * glEnd) ();
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55 void (APIENTRY * glVertex3f) (GLfloat, GLfloat, GLfloat);
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56 void (APIENTRY * glClearColor) (GLfloat, GLfloat, GLfloat, GLfloat);
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57 void (APIENTRY * glClear) (GLbitfield);
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58 void (APIENTRY * glDisable) (GLenum);
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59 void (APIENTRY * glEnable) (GLenum);
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60 void (APIENTRY * glColor4ub) (GLubyte, GLubyte, GLubyte, GLubyte);
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61 void (APIENTRY * glPointSize) (GLfloat);
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62 void (APIENTRY * glHint) (GLenum, GLenum);
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63 void (APIENTRY * glBlendFunc) (GLenum, GLenum);
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64 void (APIENTRY * glMatrixMode) (GLenum);
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65 void (APIENTRY * glLoadIdentity) ();
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66 void (APIENTRY * glOrtho) (GLdouble, GLdouble, GLdouble, GLdouble,
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67 GLdouble, GLdouble);
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68 void (APIENTRY * glRotatef) (GLfloat, GLfloat, GLfloat, GLfloat);
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69 void (APIENTRY * glViewport) (GLint, GLint, GLsizei, GLsizei);
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70 void (APIENTRY * glFogf) (GLenum, GLfloat);
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71 }
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72 glfuncs;
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73
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74 void
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75 init_glfuncs(glfuncs * f)
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76 {
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77 f->glBegin = get_funcaddr("glBegin");
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78 f->glEnd = get_funcaddr("glEnd");
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79 f->glVertex3f = get_funcaddr("glVertex3f");
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80 f->glClearColor = get_funcaddr("glClearColor");
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81 f->glClear = get_funcaddr("glClear");
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82 f->glDisable = get_funcaddr("glDisable");
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83 f->glEnable = get_funcaddr("glEnable");
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84 f->glColor4ub = get_funcaddr("glColor4ub");
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85 f->glPointSize = get_funcaddr("glPointSize");
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86 f->glHint = get_funcaddr("glHint");
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87 f->glBlendFunc = get_funcaddr("glBlendFunc");
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88 f->glMatrixMode = get_funcaddr("glMatrixMode");
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89 f->glLoadIdentity = get_funcaddr("glLoadIdentity");
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90 f->glOrtho = get_funcaddr("glOrtho");
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91 f->glRotatef = get_funcaddr("glRotatef");
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92 f->glViewport = get_funcaddr("glViewport");
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93 f->glFogf = get_funcaddr("glFogf");
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94 }
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95
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96 #define NB_PIXELS 1000
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97
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98 int
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99 main(int argc, char *argv[])
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100 {
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101 glfuncs f;
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102 int i;
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103 SDL_Event event;
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104 int done = 0;
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105 GLfloat pixels[NB_PIXELS * 3];
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106 const char *gl_library = NULL; /* Use the default GL library */
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107
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108 if (argv[1]) {
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109 gl_library = argv[1];
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110 }
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111
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112 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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113 printf("Unable to init SDL : %s\n", SDL_GetError());
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114 return (1);
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115 }
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116
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117 if (SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1) < 0) {
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118 printf("Unable to set GL attribute : %s\n", SDL_GetError());
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119 quit(1);
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120 }
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121
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122 if (SDL_GL_LoadLibrary(gl_library) < 0) {
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123 printf("Unable to dynamically open GL lib : %s\n", SDL_GetError());
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124 quit(1);
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125 }
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126
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127 if (SDL_SetVideoMode(640, 480, 0, SDL_OPENGL) == NULL) {
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128 printf("Unable to open video mode : %s\n", SDL_GetError());
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129 quit(1);
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130 }
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131
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132 /* Set the window manager title bar */
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133 SDL_WM_SetCaption("SDL Dynamic OpenGL Loading Test", "testdyngl");
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134
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135 init_glfuncs(&f);
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136
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137 for (i = 0; i < NB_PIXELS; i++) {
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138 pixels[3 * i] = rand() % 250 - 125;
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139 pixels[3 * i + 1] = rand() % 250 - 125;
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140 pixels[3 * i + 2] = rand() % 250 - 125;
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141 }
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142
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143 f.glViewport(0, 0, 640, 480);
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144
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145 f.glMatrixMode(GL_PROJECTION);
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146 f.glLoadIdentity();
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147 f.glOrtho(-100, 100, -100, 100, -500, 500);
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148
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149 f.glMatrixMode(GL_MODELVIEW);
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150 f.glLoadIdentity();
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151
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152 f.glEnable(GL_DEPTH_TEST);
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153 f.glDisable(GL_TEXTURE_2D);
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154 f.glEnable(GL_BLEND);
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155 f.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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156
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157 f.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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158 f.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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159
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160 f.glEnable(GL_POINT_SMOOTH);
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161 f.glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
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162 f.glPointSize(5.0f);
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163 f.glEnable(GL_FOG);
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164 f.glFogf(GL_FOG_START, -500);
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165 f.glFogf(GL_FOG_END, 500);
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166 f.glFogf(GL_FOG_DENSITY, 0.005);
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167
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168 do {
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169 f.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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170
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171 f.glRotatef(2.0, 1.0, 1.0, 1.0);
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172 f.glRotatef(1.0, 0.0, 1.0, 1.0);
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173
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174 f.glColor4ub(255, 255, 255, 255);
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175 f.glBegin(GL_POINTS);
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176 for (i = 0; i < NB_PIXELS; i++) {
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177 f.glVertex3f(pixels[3 * i], pixels[3 * i + 1], pixels[3 * i + 2]);
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178 }
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179 f.glEnd();
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180 SDL_GL_SwapBuffers();
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181
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182 while (SDL_PollEvent(&event)) {
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183 if (event.type == SDL_KEYDOWN)
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184 done = 1;
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185 }
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186
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187 SDL_Delay(20);
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188 } while (!done);
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189
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190 SDL_Quit();
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191 return 0;
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192 }
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193
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194 #else /* HAVE_OPENGL */
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195
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196 int
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197 main(int argc, char *argv[])
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198 {
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199 printf("No OpenGL support on this system\n");
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200 return 1;
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201 }
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202
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203 #endif /* HAVE_OPENGL */