Mercurial > sdl-ios-xcode
annotate test/testdyngles.c @ 3099:82e60908fab1
Date: Mon, 23 Mar 2009 09:17:24 +0200
From: "Mike Gorchak"
Subject: New QNX patches
Please apply patch qnx4.diff, which is attached. What has been done:
1)Added back OpenGL ES renderer for QNX target. Added few corrections to
OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not
support textures under QNX, so I think some additional work must be done.
2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which
required by OpenGL ES 1.1 specification.
3) Added attribute clearing at the entrance of function
SDL_GL_GetAttribure(). Added error checking into the function
SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL
ES 1.0.
4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and
glColor4f() functions, but 1.0 has glColor4f() only).
5) Added error checking after obtaining attributes using
SDL_GL_GetAttribute() function to the testgl2 and testgles.
6) Small correction to testmultiaudio with printing errors.
7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF
driver.
Please remove ./src/audio/nto directory - it will not be used anymore.
Please create ./src/audio/qsa directory and add content of the archive
qsa.tar.gz into this directory. I rewrote some sound code, added support for
multiple audio cards, enumeration, etc. Added initial support for capture.
As far as I can understand SDL 1.3 is not supporting audio capture right now
? Sam, Am I right ? Or audio capture must be supported through the
PlayDevice routine ?
And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf
directory. It is OpenGL ES 1.1 emulation layer for some functions, which are
not supported by OpenGL ES 1.0.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 24 Mar 2009 10:33:12 +0000 |
parents | 0b6f51c29267 |
children | 7f684f249ec9 |
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 : |
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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. : |
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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 __IPHONEOS__ |
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23 #define HAVE_OPENGLES |
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24 #endif |
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25 |
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26 #ifdef HAVE_OPENGLES |
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27 |
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28 #include "SDL_opengles.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); |
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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 |
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57 void (APIENTRY * glEnableClientState) (GLenum array); |
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58 void (APIENTRY * glVertexPointer) (GLint size, GLenum type, |
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59 GLsizei stride, |
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60 const GLvoid * pointer); |
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61 void (APIENTRY * glDrawArrays) (GLenum mode, GLint first, GLsizei count); |
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62 |
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63 |
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64 void (APIENTRY * glClearColor) (GLfloat, GLfloat, GLfloat, GLfloat); |
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65 void (APIENTRY * glClear) (GLbitfield); |
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66 void (APIENTRY * glDisable) (GLenum); |
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67 void (APIENTRY * glEnable) (GLenum); |
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68 void (APIENTRY * glColor4f) (GLfloat, GLfloat, GLfloat, GLfloat); |
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69 void (APIENTRY * glPointSize) (GLfloat); |
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70 void (APIENTRY * glHint) (GLenum, GLenum); |
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71 void (APIENTRY * glBlendFunc) (GLenum, GLenum); |
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72 void (APIENTRY * glMatrixMode) (GLenum); |
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73 void (APIENTRY * glLoadIdentity) (); |
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74 void (APIENTRY * glOrthof) (GLfloat, GLfloat, GLfloat, GLfloat, |
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75 GLfloat, GLfloat); |
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76 void (APIENTRY * glRotatef) (GLfloat, GLfloat, GLfloat, GLfloat); |
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77 void (APIENTRY * glViewport) (GLint, GLint, GLsizei, GLsizei); |
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78 void (APIENTRY * glFogf) (GLenum, GLfloat); |
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79 } |
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80 glfuncs; |
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81 |
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82 void |
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83 init_glfuncs(glfuncs * f) |
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84 { |
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85 f->glEnableClientState = get_funcaddr("glEnableClientState"); |
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86 f->glVertexPointer = get_funcaddr("glVertexPointer"); |
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87 f->glDrawArrays = get_funcaddr("glDrawArrays"); |
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88 f->glClearColor = get_funcaddr("glClearColor"); |
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89 f->glClear = get_funcaddr("glClear"); |
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90 f->glDisable = get_funcaddr("glDisable"); |
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91 f->glEnable = get_funcaddr("glEnable"); |
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92 f->glColor4f = get_funcaddr("glColor4f"); |
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93 f->glPointSize = get_funcaddr("glPointSize"); |
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94 f->glHint = get_funcaddr("glHint"); |
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95 f->glBlendFunc = get_funcaddr("glBlendFunc"); |
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96 f->glMatrixMode = get_funcaddr("glMatrixMode"); |
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97 f->glLoadIdentity = get_funcaddr("glLoadIdentity"); |
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98 f->glOrthof = get_funcaddr("glOrthof"); |
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99 f->glRotatef = get_funcaddr("glRotatef"); |
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100 f->glViewport = get_funcaddr("glViewport"); |
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101 f->glFogf = get_funcaddr("glFogf"); |
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102 } |
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103 |
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104 #define NB_PIXELS 1000 |
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105 |
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106 int |
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107 main(int argc, char *argv[]) |
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108 { |
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109 glfuncs f; |
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110 int i; |
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111 SDL_Event event; |
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112 int done = 0; |
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113 GLfloat pixels[NB_PIXELS * 3]; |
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114 const char *gl_library = NULL; /* Use the default GL library */ |
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115 |
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116 int video_w, video_h; |
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117 |
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118 /* you may want to change these according to the platform */ |
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119 video_w = 320; |
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120 video_h = 480; |
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121 #ifdef __QNXNTO__ |
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122 video_h = 640; |
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123 video_w = 480; |
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124 #endif /* __QNXNTO__ */ |
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125 |
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126 if (argv[1]) { |
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127 gl_library = argv[1]; |
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128 } |
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129 |
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130 if (SDL_Init(SDL_INIT_VIDEO) < 0) { |
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131 printf("Unable to init SDL : %s\n", SDL_GetError()); |
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132 return (1); |
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133 } |
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134 |
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135 if (SDL_GL_LoadLibrary(gl_library) < 0) { |
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136 printf("Unable to dynamically open GL ES lib : %s\n", SDL_GetError()); |
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137 quit(1); |
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138 } |
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139 |
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140 if (SDL_SetVideoMode(video_h, video_w, 0, SDL_OPENGL) == NULL) { |
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141 printf("Unable to open video mode : %s\n", SDL_GetError()); |
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142 quit(1); |
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143 } |
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144 |
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145 /* Set the window manager title bar */ |
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146 SDL_WM_SetCaption("SDL Dynamic OpenGL ES Loading Test", "testdyngles"); |
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147 |
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148 init_glfuncs(&f); |
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149 |
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150 for (i = 0; i < NB_PIXELS; i++) { |
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151 pixels[3 * i] = rand() % 250 - 125; |
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152 pixels[3 * i + 1] = rand() % 250 - 125; |
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153 pixels[3 * i + 2] = rand() % 250 - 125; |
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154 } |
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155 |
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156 #ifdef __QNXNTO__ |
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157 f.glViewport(0, 0, video_h, video_w); |
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158 #else |
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159 f.glViewport(0, 0, video_w, video_h); |
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160 #endif /* __QNXNTO__ */ |
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161 |
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162 f.glMatrixMode(GL_PROJECTION); |
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163 f.glLoadIdentity(); |
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164 f.glOrthof(-100, 100, -100, 100, -500, 500); |
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165 |
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166 f.glMatrixMode(GL_MODELVIEW); |
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167 f.glLoadIdentity(); |
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168 |
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169 f.glEnable(GL_DEPTH_TEST); |
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170 f.glDisable(GL_TEXTURE_2D); |
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171 f.glEnable(GL_BLEND); |
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172 f.glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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173 |
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174 f.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); |
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175 f.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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176 |
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177 f.glEnable(GL_POINT_SMOOTH); |
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178 f.glHint(GL_POINT_SMOOTH_HINT, GL_NICEST); |
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179 f.glPointSize(5.0f); |
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180 f.glEnable(GL_FOG); |
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181 f.glFogf(GL_FOG_START, -500); |
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182 f.glFogf(GL_FOG_END, 500); |
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183 f.glFogf(GL_FOG_DENSITY, 0.005); |
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184 |
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185 do { |
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186 f.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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187 |
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188 f.glRotatef(2.0, 1.0, 1.0, 1.0); |
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189 f.glRotatef(1.0, 0.0, 1.0, 1.0); |
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190 |
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191 f.glColor4f(1.0, 1.0, 1.0, 1.0); |
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192 |
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193 f.glEnableClientState(GL_VERTEX_ARRAY); |
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194 f.glVertexPointer(3, GL_FLOAT, 0, pixels); |
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195 f.glDrawArrays(GL_POINTS, 0, NB_PIXELS); |
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196 |
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197 SDL_GL_SwapBuffers(); |
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198 |
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199 while (SDL_PollEvent(&event)) { |
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200 if (event.type == SDL_QUIT) |
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201 done = 1; |
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202 if (event.type == SDL_KEYDOWN) |
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203 done = 1; |
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204 } |
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205 |
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206 SDL_Delay(20); |
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207 } |
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208 while (!done); |
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209 |
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210 SDL_Quit(); |
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211 return 0; |
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212 } |
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213 |
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214 #else /* HAVE_OPENGLES */ |
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215 |
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216 int |
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217 main(int argc, char *argv[]) |
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218 { |
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219 printf("No OpenGL ES support on this system\n"); |
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220 return 1; |
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221 } |
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222 |
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223 #endif /* HAVE_OPENGLES */ |