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annotate test/testgl2.c @ 5133:ec13e48ee0d9

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Fixed bug #1112 (retina display support) Vittorio Giovara 2011-02-01 02:21:50 PST with the attached patch, the opengles context will always use the maximum screensize available; this is particularly useful for supporting retina display on latest iphone. please note: Apple documentation warns that using the "upscaled" gl context actually uses more memory and bandwitdh, so it might be worth to let the user decide whether to disable it or not, either with a flag or a sdl function...
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Feb 2011 08:54:34 -0800
parents 19691cebb866
children 762e40fb8e28
rev   line source
1914
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1 #include <stdlib.h>
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2 #include <stdio.h>
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3 #include <string.h>
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4 #include <math.h>
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5
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6 #include "common.h"
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7
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8 #ifdef __MACOS__
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9 #define HAVE_OPENGL
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10 #endif
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11
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12 #ifdef HAVE_OPENGL
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13
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14 #include "SDL_opengl.h"
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15
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16 /* Undefine this if you want a flat cube instead of a rainbow cube */
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17 #define SHADED_CUBE
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18
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19 static CommonState *state;
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20 static SDL_GLContext context;
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21
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22 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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23 static void
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24 quit(int rc)
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25 {
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26 if (context) {
2328
91e601d9df8b re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being
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27 /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */
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28 SDL_GL_DeleteContext(context);
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29 }
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30 CommonQuit(state);
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31 exit(rc);
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32 }
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33
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34 static void
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35 Render()
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36 {
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37 static float color[8][3] = {
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38 {1.0, 1.0, 0.0},
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39 {1.0, 0.0, 0.0},
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40 {0.0, 0.0, 0.0},
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41 {0.0, 1.0, 0.0},
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42 {0.0, 1.0, 1.0},
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43 {1.0, 1.0, 1.0},
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44 {1.0, 0.0, 1.0},
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45 {0.0, 0.0, 1.0}
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46 };
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47 static float cube[8][3] = {
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48 {0.5, 0.5, -0.5},
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49 {0.5, -0.5, -0.5},
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50 {-0.5, -0.5, -0.5},
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51 {-0.5, 0.5, -0.5},
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52 {-0.5, 0.5, 0.5},
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53 {0.5, 0.5, 0.5},
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54 {0.5, -0.5, 0.5},
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55 {-0.5, -0.5, 0.5}
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56 };
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57
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58 /* Do our drawing, too. */
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59 glClearColor(0.0, 0.0, 0.0, 1.0);
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60 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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61
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62 glBegin(GL_QUADS);
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63
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64 #ifdef SHADED_CUBE
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65 glColor3fv(color[0]);
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66 glVertex3fv(cube[0]);
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67 glColor3fv(color[1]);
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68 glVertex3fv(cube[1]);
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69 glColor3fv(color[2]);
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70 glVertex3fv(cube[2]);
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71 glColor3fv(color[3]);
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72 glVertex3fv(cube[3]);
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73
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74 glColor3fv(color[3]);
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75 glVertex3fv(cube[3]);
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76 glColor3fv(color[4]);
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77 glVertex3fv(cube[4]);
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78 glColor3fv(color[7]);
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79 glVertex3fv(cube[7]);
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80 glColor3fv(color[2]);
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81 glVertex3fv(cube[2]);
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82
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83 glColor3fv(color[0]);
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84 glVertex3fv(cube[0]);
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85 glColor3fv(color[5]);
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86 glVertex3fv(cube[5]);
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87 glColor3fv(color[6]);
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88 glVertex3fv(cube[6]);
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89 glColor3fv(color[1]);
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90 glVertex3fv(cube[1]);
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91
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92 glColor3fv(color[5]);
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93 glVertex3fv(cube[5]);
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94 glColor3fv(color[4]);
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95 glVertex3fv(cube[4]);
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96 glColor3fv(color[7]);
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97 glVertex3fv(cube[7]);
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98 glColor3fv(color[6]);
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99 glVertex3fv(cube[6]);
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100
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101 glColor3fv(color[5]);
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102 glVertex3fv(cube[5]);
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103 glColor3fv(color[0]);
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104 glVertex3fv(cube[0]);
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105 glColor3fv(color[3]);
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106 glVertex3fv(cube[3]);
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107 glColor3fv(color[4]);
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108 glVertex3fv(cube[4]);
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109
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110 glColor3fv(color[6]);
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111 glVertex3fv(cube[6]);
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112 glColor3fv(color[1]);
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113 glVertex3fv(cube[1]);
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114 glColor3fv(color[2]);
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115 glVertex3fv(cube[2]);
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116 glColor3fv(color[7]);
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117 glVertex3fv(cube[7]);
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118 #else /* flat cube */
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119 glColor3f(1.0, 0.0, 0.0);
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120 glVertex3fv(cube[0]);
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121 glVertex3fv(cube[1]);
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122 glVertex3fv(cube[2]);
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123 glVertex3fv(cube[3]);
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124
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125 glColor3f(0.0, 1.0, 0.0);
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126 glVertex3fv(cube[3]);
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127 glVertex3fv(cube[4]);
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128 glVertex3fv(cube[7]);
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129 glVertex3fv(cube[2]);
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130
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131 glColor3f(0.0, 0.0, 1.0);
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132 glVertex3fv(cube[0]);
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133 glVertex3fv(cube[5]);
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134 glVertex3fv(cube[6]);
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135 glVertex3fv(cube[1]);
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136
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parents: 1914
diff changeset
137 glColor3f(0.0, 1.0, 1.0);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
138 glVertex3fv(cube[5]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
139 glVertex3fv(cube[4]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
140 glVertex3fv(cube[7]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
141 glVertex3fv(cube[6]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
142
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
143 glColor3f(1.0, 1.0, 0.0);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
144 glVertex3fv(cube[5]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
145 glVertex3fv(cube[0]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
146 glVertex3fv(cube[3]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
147 glVertex3fv(cube[4]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
148
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
149 glColor3f(1.0, 0.0, 1.0);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
150 glVertex3fv(cube[6]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
151 glVertex3fv(cube[1]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
152 glVertex3fv(cube[2]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
153 glVertex3fv(cube[7]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
154 #endif /* SHADED_CUBE */
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
155
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
156 glEnd();
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
157
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
158 glMatrixMode(GL_MODELVIEW);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
159 glRotatef(5.0, 1.0, 1.0, 1.0);
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 }
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 int
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
163 main(int argc, char *argv[])
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 {
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
165 int fsaa, accel;
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
166 int value;
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
167 int i, done;
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
168 SDL_DisplayMode mode;
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
169 SDL_Event event;
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
170 Uint32 then, now, frames;
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
171 int status;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
173 /* Initialize parameters */
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
174 fsaa = 0;
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
175 accel = -1;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
177 /* Initialize test framework */
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
178 state = CommonCreateState(argv, SDL_INIT_VIDEO);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
179 if (!state) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
180 return 1;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 }
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
182 for (i = 1; i < argc;) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
183 int consumed;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
185 consumed = CommonArg(state, i);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
186 if (consumed == 0) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
187 if (SDL_strcasecmp(argv[i], "--fsaa") == 0) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
188 ++fsaa;
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
189 consumed = 1;
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
190 } else if (SDL_strcasecmp(argv[i], "--accel") == 0 && i+1 < argc) {
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
191 accel = atoi(argv[i+1]);
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
192 consumed = 2;
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
193 } else {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
194 consumed = -1;
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
195 }
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
196 }
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
197 if (consumed < 0) {
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
198 fprintf(stderr, "Usage: %s %s [--fsaa] [--accel n]\n", argv[0],
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
199 CommonUsage(state));
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
200 quit(1);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
201 }
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
202 i += consumed;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 }
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
205 /* Set OpenGL parameters */
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
206 state->window_flags |= SDL_WINDOW_OPENGL;
3408
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
207 state->gl_red_size = 5;
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
208 state->gl_green_size = 5;
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
209 state->gl_blue_size = 5;
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
210 state->gl_depth_size = 16;
3418
fba883490f72 Fixed compile error
Sam Lantinga <slouken@libsdl.org>
parents: 3408
diff changeset
211 state->gl_double_buffer = 1;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 if (fsaa) {
3408
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
213 state->gl_multisamplebuffers = 1;
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
214 state->gl_multisamplesamples = fsaa;
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 }
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
216 if (accel >= 0) {
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
217 state->gl_accelerated = accel;
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
218 }
3408
55541ddf13e3 Support for GL initialization parameters has been added.
Mike Gorchak <lestat@i.com.ua>
parents: 3139
diff changeset
219
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
220 if (!CommonInit(state)) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
221 quit(2);
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
222 }
1915
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
223
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
224 /* Create OpenGL context */
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
225 context = SDL_GL_CreateContext(state->windows[0]);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
226 if (!context) {
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
227 fprintf(stderr, "SDL_GL_CreateContext(): %s\n", SDL_GetError());
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
228 quit(2);
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
229 }
a228436a2404 Implemented multi-window OpenGL program with test framework.
Sam Lantinga <slouken@libsdl.org>
parents: 1914
diff changeset
230
1965
a788656ca29a SDL constants are all uppercase.
Sam Lantinga <slouken@libsdl.org>
parents: 1936
diff changeset
231 if (state->render_flags & SDL_RENDERER_PRESENTVSYNC) {
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
232 SDL_GL_SetSwapInterval(1);
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 } else {
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 SDL_GL_SetSwapInterval(0);
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 }
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236
1967
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
237 SDL_GetCurrentDisplayMode(&mode);
01e29c3e9a29 In general, fill in pointers to structures, rather than return them.
Sam Lantinga <slouken@libsdl.org>
parents: 1965
diff changeset
238 printf("Screen BPP: %d\n", SDL_BITSPERPIXEL(mode.format));
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 printf("\n");
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240 printf("Vendor : %s\n", glGetString(GL_VENDOR));
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 printf("Renderer : %s\n", glGetString(GL_RENDERER));
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 printf("Version : %s\n", glGetString(GL_VERSION));
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 printf("Extensions : %s\n", glGetString(GL_EXTENSIONS));
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 printf("\n");
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
246 status = SDL_GL_GetAttribute(SDL_GL_RED_SIZE, &value);
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
247 if (!status) {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
248 printf("SDL_GL_RED_SIZE: requested %d, got %d\n", 5, value);
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
249 } else {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
250 printf("Failed to get SDL_GL_RED_SIZE: %s\n", SDL_GetError());
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
251 }
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
252 status = SDL_GL_GetAttribute(SDL_GL_GREEN_SIZE, &value);
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
253 if (!status) {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
254 printf("SDL_GL_GREEN_SIZE: requested %d, got %d\n", 5, value);
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
255 } else {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
256 printf("Failed to get SDL_GL_GREEN_SIZE: %s\n", SDL_GetError());
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
257 }
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
258 status = SDL_GL_GetAttribute(SDL_GL_BLUE_SIZE, &value);
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
259 if (!status) {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
260 printf("SDL_GL_BLUE_SIZE: requested %d, got %d\n", 5, value);
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
261 } else {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
262 printf("Failed to get SDL_GL_BLUE_SIZE: %s\n", SDL_GetError());
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
263 }
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
264 status = SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &value);
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
265 if (!status) {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
266 printf("SDL_GL_DEPTH_SIZE: requested %d, got %d\n", 16, value);
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
267 } else {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
268 printf("Failed to get SDL_GL_DEPTH_SIZE: %s\n", SDL_GetError());
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
269 }
1914
051df511279c Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 if (fsaa) {
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
271 status = SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &value);
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
272 if (!status) {
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
273 printf("SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value);
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
274 } else {
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
275 printf("Failed to get SDL_GL_MULTISAMPLEBUFFERS: %s\n",
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
276 SDL_GetError());
3099
82e60908fab1 Date: Mon, 23 Mar 2009 09:17:24 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2328
diff changeset
277 }
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3099
diff changeset
278 status = SDL_GL_GetAttribute(SDL_GL_MULTISAMPLESAMPLES, &value);
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279 if (!status) {
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280 printf("SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa,
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281 value);
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282 } else {
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283 printf("Failed to get SDL_GL_MULTISAMPLESAMPLES: %s\n",
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284 SDL_GetError());
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285 }
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286 }
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287 if (accel >= 0) {
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288 status = SDL_GL_GetAttribute(SDL_GL_ACCELERATED_VISUAL, &value);
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289 if (!status) {
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290 printf("SDL_GL_ACCELERATED_VISUAL: requested %d, got %d\n", accel,
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291 value);
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292 } else {
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293 printf("Failed to get SDL_GL_ACCELERATED_VISUAL: %s\n",
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294 SDL_GetError());
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295 }
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296 }
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297
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298 /* Set rendering settings */
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299 glMatrixMode(GL_PROJECTION);
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300 glLoadIdentity();
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301 glOrtho(-2.0, 2.0, -2.0, 2.0, -20.0, 20.0);
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302 glMatrixMode(GL_MODELVIEW);
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303 glLoadIdentity();
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304 glEnable(GL_DEPTH_TEST);
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305 glDepthFunc(GL_LESS);
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306 glShadeModel(GL_SMOOTH);
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307
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308 /* Main render loop */
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309 frames = 0;
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310 then = SDL_GetTicks();
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311 done = 0;
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312 while (!done) {
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313 /* Check for events */
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314 ++frames;
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315 while (SDL_PollEvent(&event)) {
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316 CommonEvent(state, &event, &done);
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317 }
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318 for (i = 0; i < state->num_windows; ++i) {
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319 int w, h;
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320 SDL_GL_MakeCurrent(state->windows[i], context);
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321 SDL_GetWindowSize(state->windows[i], &w, &h);
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322 glViewport(0, 0, w, h);
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323 Render();
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324 SDL_GL_SwapWindow(state->windows[i]);
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325 }
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326 }
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327
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328 /* Print out some timing information */
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329 now = SDL_GetTicks();
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330 if (now > then) {
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331 printf("%2.2f frames per second\n",
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332 ((double) frames * 1000) / (now - then));
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333 }
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334 quit(0);
2232
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335 return 0;
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336 }
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337
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338 #else /* HAVE_OPENGL */
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339
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340 int
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341 main(int argc, char *argv[])
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342 {
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343 printf("No OpenGL support on this system\n");
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344 return 1;
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345 }
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346
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347 #endif /* HAVE_OPENGL */