Mercurial > sdl-ios-xcode
annotate test/testgl.c @ 1643:51038e80ae59
More general fix for bug #189
The clipping is done at a higher level, and the low level functions are
passed clipped rectangles. Drivers which don't support source clipping
have not been changed, so the image will be squished instead of clipped,
but at least they will no longer crash when the destination rect was out
of bounds.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 17 Apr 2006 06:47:23 +0000 |
| parents | 4d3bb026cd16 |
| children | 0a53c90a37f9 3b2a92126f4d |
| rev | line source |
|---|---|
| 0 | 1 #include <stdlib.h> |
| 2 #include <stdio.h> | |
| 3 #include <string.h> | |
| 4 #include <math.h> | |
| 5 | |
| 6 #include "SDL.h" | |
| 7 | |
| 8 #ifdef HAVE_OPENGL | |
|
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9 |
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10 #include "SDL_opengl.h" |
| 0 | 11 |
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12 /* Undefine this if you want a flat cube instead of a rainbow cube */ |
| 0 | 13 #define SHADED_CUBE |
| 14 | |
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15 /* Define this to be the name of the logo image to use with -logo */ |
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16 #define LOGO_FILE "icon.bmp" |
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17 |
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18 /* The SDL_OPENGLBLIT interface is deprecated. |
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19 The code is still available for benchmark purposes though. |
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20 */ |
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21 |
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22 static SDL_bool USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
| 0 | 23 |
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24 static SDL_Surface *global_image = NULL; |
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25 static GLuint global_texture = 0; |
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26 static GLuint cursor_texture = 0; |
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27 |
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28 /**********************************************************************/ |
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29 |
| 0 | 30 void HotKey_ToggleFullScreen(void) |
| 31 { | |
| 32 SDL_Surface *screen; | |
| 33 | |
| 34 screen = SDL_GetVideoSurface(); | |
| 35 if ( SDL_WM_ToggleFullScreen(screen) ) { | |
| 36 printf("Toggled fullscreen mode - now %s\n", | |
| 37 (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); | |
| 38 } else { | |
| 39 printf("Unable to toggle fullscreen mode\n"); | |
| 40 } | |
| 41 } | |
| 42 | |
| 43 void HotKey_ToggleGrab(void) | |
| 44 { | |
| 45 SDL_GrabMode mode; | |
| 46 | |
| 47 printf("Ctrl-G: toggling input grab!\n"); | |
| 48 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
| 49 if ( mode == SDL_GRAB_ON ) { | |
| 50 printf("Grab was on\n"); | |
| 51 } else { | |
| 52 printf("Grab was off\n"); | |
| 53 } | |
| 54 mode = SDL_WM_GrabInput(!mode); | |
| 55 if ( mode == SDL_GRAB_ON ) { | |
| 56 printf("Grab is now on\n"); | |
| 57 } else { | |
| 58 printf("Grab is now off\n"); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 void HotKey_Iconify(void) | |
| 63 { | |
| 64 printf("Ctrl-Z: iconifying window!\n"); | |
| 65 SDL_WM_IconifyWindow(); | |
| 66 } | |
| 67 | |
| 68 int HandleEvent(SDL_Event *event) | |
| 69 { | |
| 70 int done; | |
| 71 | |
| 72 done = 0; | |
| 73 switch( event->type ) { | |
| 74 case SDL_ACTIVEEVENT: | |
| 75 /* See what happened */ | |
| 76 printf( "app %s ", event->active.gain ? "gained" : "lost" ); | |
| 77 if ( event->active.state & SDL_APPACTIVE ) { | |
| 78 printf( "active " ); | |
| 79 } else if ( event->active.state & SDL_APPMOUSEFOCUS ) { | |
| 80 printf( "mouse " ); | |
| 81 } else if ( event->active.state & SDL_APPINPUTFOCUS ) { | |
| 82 printf( "input " ); | |
| 83 } | |
| 84 printf( "focus\n" ); | |
| 85 break; | |
| 86 | |
| 87 | |
| 88 case SDL_KEYDOWN: | |
| 89 if ( event->key.keysym.sym == SDLK_ESCAPE ) { | |
| 90 done = 1; | |
| 91 } | |
| 92 if ( (event->key.keysym.sym == SDLK_g) && | |
| 93 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 94 HotKey_ToggleGrab(); | |
| 95 } | |
| 96 if ( (event->key.keysym.sym == SDLK_z) && | |
| 97 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 98 HotKey_Iconify(); | |
| 99 } | |
| 100 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 101 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 102 HotKey_ToggleFullScreen(); | |
| 103 } | |
| 104 printf("key '%s' pressed\n", | |
| 105 SDL_GetKeyName(event->key.keysym.sym)); | |
| 106 break; | |
| 107 case SDL_QUIT: | |
| 108 done = 1; | |
| 109 break; | |
| 110 } | |
| 111 return(done); | |
| 112 } | |
| 113 | |
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114 void SDL_GL_Enter2DMode() |
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115 { |
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116 SDL_Surface *screen = SDL_GetVideoSurface(); |
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117 |
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118 /* Note, there may be other things you need to change, |
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119 depending on how you have your OpenGL state set up. |
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120 */ |
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121 glPushAttrib(GL_ENABLE_BIT); |
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122 glDisable(GL_DEPTH_TEST); |
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123 glDisable(GL_CULL_FACE); |
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124 glEnable(GL_TEXTURE_2D); |
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125 |
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126 /* This allows alpha blending of 2D textures with the scene */ |
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127 glEnable(GL_BLEND); |
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128 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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129 |
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130 glViewport(0, 0, screen->w, screen->h); |
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131 |
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132 glMatrixMode(GL_PROJECTION); |
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133 glPushMatrix(); |
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134 glLoadIdentity(); |
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135 |
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136 glOrtho(0.0, (GLdouble)screen->w, (GLdouble)screen->h, 0.0, 0.0, 1.0); |
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137 |
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138 glMatrixMode(GL_MODELVIEW); |
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139 glPushMatrix(); |
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140 glLoadIdentity(); |
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141 |
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142 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); |
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143 } |
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144 |
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145 void SDL_GL_Leave2DMode() |
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146 { |
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147 glMatrixMode(GL_MODELVIEW); |
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148 glPopMatrix(); |
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149 |
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150 glMatrixMode(GL_PROJECTION); |
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151 glPopMatrix(); |
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152 |
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153 glPopAttrib(); |
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154 } |
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155 |
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156 /* Quick utility function for texture creation */ |
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157 static int power_of_two(int input) |
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158 { |
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159 int value = 1; |
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160 |
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161 while ( value < input ) { |
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162 value <<= 1; |
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163 } |
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164 return value; |
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165 } |
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166 |
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167 GLuint SDL_GL_LoadTexture(SDL_Surface *surface, GLfloat *texcoord) |
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168 { |
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169 GLuint texture; |
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170 int w, h; |
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171 SDL_Surface *image; |
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172 SDL_Rect area; |
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173 Uint32 saved_flags; |
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174 Uint8 saved_alpha; |
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175 |
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176 /* Use the surface width and height expanded to powers of 2 */ |
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177 w = power_of_two(surface->w); |
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178 h = power_of_two(surface->h); |
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179 texcoord[0] = 0.0f; /* Min X */ |
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180 texcoord[1] = 0.0f; /* Min Y */ |
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181 texcoord[2] = (GLfloat)surface->w / w; /* Max X */ |
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182 texcoord[3] = (GLfloat)surface->h / h; /* Max Y */ |
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183 |
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184 image = SDL_CreateRGBSurface( |
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185 SDL_SWSURFACE, |
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186 w, h, |
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187 32, |
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188 #if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */ |
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189 0x000000FF, |
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190 0x0000FF00, |
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191 0x00FF0000, |
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192 0xFF000000 |
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193 #else |
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194 0xFF000000, |
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195 0x00FF0000, |
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196 0x0000FF00, |
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197 0x000000FF |
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198 #endif |
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199 ); |
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200 if ( image == NULL ) { |
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201 return 0; |
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202 } |
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203 |
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204 /* Save the alpha blending attributes */ |
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205 saved_flags = surface->flags&(SDL_SRCALPHA|SDL_RLEACCELOK); |
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206 saved_alpha = surface->format->alpha; |
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207 if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
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208 SDL_SetAlpha(surface, 0, 0); |
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209 } |
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210 |
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211 /* Copy the surface into the GL texture image */ |
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212 area.x = 0; |
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213 area.y = 0; |
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214 area.w = surface->w; |
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215 area.h = surface->h; |
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216 SDL_BlitSurface(surface, &area, image, &area); |
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217 |
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218 /* Restore the alpha blending attributes */ |
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219 if ( (saved_flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
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220 SDL_SetAlpha(surface, saved_flags, saved_alpha); |
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221 } |
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222 |
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223 /* Create an OpenGL texture for the image */ |
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224 glGenTextures(1, &texture); |
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225 glBindTexture(GL_TEXTURE_2D, texture); |
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226 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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227 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
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228 glTexImage2D(GL_TEXTURE_2D, |
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229 0, |
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230 GL_RGBA, |
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231 w, h, |
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232 0, |
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233 GL_RGBA, |
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234 GL_UNSIGNED_BYTE, |
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235 image->pixels); |
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236 SDL_FreeSurface(image); /* No longer needed */ |
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237 |
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238 return texture; |
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239 } |
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240 |
|
933
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241 void DrawLogoCursor(void) |
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242 { |
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243 static GLfloat texMinX, texMinY; |
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244 static GLfloat texMaxX, texMaxY; |
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245 static int w, h; |
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246 int x, y; |
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247 |
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248 if ( ! cursor_texture ) { |
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249 SDL_Surface *image; |
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250 GLfloat texcoord[4]; |
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251 |
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252 /* Load the image (could use SDL_image library here) */ |
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253 image = SDL_LoadBMP(LOGO_FILE); |
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254 if ( image == NULL ) { |
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255 return; |
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256 } |
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257 w = image->w; |
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258 h = image->h; |
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259 |
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260 /* Convert the image into an OpenGL texture */ |
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261 cursor_texture = SDL_GL_LoadTexture(image, texcoord); |
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262 |
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263 /* Make texture coordinates easy to understand */ |
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264 texMinX = texcoord[0]; |
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265 texMinY = texcoord[1]; |
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266 texMaxX = texcoord[2]; |
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267 texMaxY = texcoord[3]; |
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268 |
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269 /* We don't need the original image anymore */ |
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270 SDL_FreeSurface(image); |
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271 |
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272 /* Make sure that the texture conversion is okay */ |
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273 if ( ! cursor_texture ) { |
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274 return; |
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275 } |
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276 } |
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277 |
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278 /* Move the image around */ |
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279 SDL_GetMouseState(&x, &y); |
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280 x -= w/2; |
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281 y -= h/2; |
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282 |
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283 /* Show the image on the screen */ |
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284 SDL_GL_Enter2DMode(); |
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285 glBindTexture(GL_TEXTURE_2D, cursor_texture); |
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286 glBegin(GL_TRIANGLE_STRIP); |
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287 glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
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288 glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
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289 glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
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290 glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
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291 glEnd(); |
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292 SDL_GL_Leave2DMode(); |
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293 } |
|
492
c59692dcdce0
*** empty log message ***
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294 |
|
234
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295 void DrawLogoTexture(void) |
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296 { |
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297 static GLfloat texMinX, texMinY; |
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298 static GLfloat texMaxX, texMaxY; |
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299 static int x = 0; |
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300 static int y = 0; |
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301 static int w, h; |
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302 static int delta_x = 1; |
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303 static int delta_y = 1; |
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304 |
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305 SDL_Surface *screen = SDL_GetVideoSurface(); |
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306 |
|
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307 if ( ! global_texture ) { |
|
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308 SDL_Surface *image; |
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309 GLfloat texcoord[4]; |
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310 |
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311 /* Load the image (could use SDL_image library here) */ |
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312 image = SDL_LoadBMP(LOGO_FILE); |
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313 if ( image == NULL ) { |
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314 return; |
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315 } |
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316 w = image->w; |
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317 h = image->h; |
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318 |
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319 /* Convert the image into an OpenGL texture */ |
|
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320 global_texture = SDL_GL_LoadTexture(image, texcoord); |
|
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321 |
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322 /* Make texture coordinates easy to understand */ |
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323 texMinX = texcoord[0]; |
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324 texMinY = texcoord[1]; |
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325 texMaxX = texcoord[2]; |
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326 texMaxY = texcoord[3]; |
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327 |
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328 /* We don't need the original image anymore */ |
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329 SDL_FreeSurface(image); |
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330 |
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331 /* Make sure that the texture conversion is okay */ |
|
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332 if ( ! global_texture ) { |
|
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333 return; |
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334 } |
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335 } |
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336 |
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337 /* Move the image around */ |
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338 x += delta_x; |
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339 if ( x < 0 ) { |
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340 x = 0; |
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341 delta_x = -delta_x; |
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342 } else |
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343 if ( (x+w) > screen->w ) { |
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344 x = screen->w-w; |
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345 delta_x = -delta_x; |
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346 } |
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347 y += delta_y; |
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348 if ( y < 0 ) { |
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349 y = 0; |
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350 delta_y = -delta_y; |
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351 } else |
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352 if ( (y+h) > screen->h ) { |
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353 y = screen->h-h; |
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354 delta_y = -delta_y; |
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355 } |
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356 |
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357 /* Show the image on the screen */ |
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358 SDL_GL_Enter2DMode(); |
|
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359 glBindTexture(GL_TEXTURE_2D, global_texture); |
|
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360 glBegin(GL_TRIANGLE_STRIP); |
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361 glTexCoord2f(texMinX, texMinY); glVertex2i(x, y ); |
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362 glTexCoord2f(texMaxX, texMinY); glVertex2i(x+w, y ); |
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363 glTexCoord2f(texMinX, texMaxY); glVertex2i(x, y+h); |
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364 glTexCoord2f(texMaxX, texMaxY); glVertex2i(x+w, y+h); |
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365 glEnd(); |
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366 SDL_GL_Leave2DMode(); |
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367 } |
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368 |
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369 /* This code is deprecated, but available for speed comparisons */ |
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370 void DrawLogoBlit(void) |
| 0 | 371 { |
| 372 static int x = 0; | |
| 373 static int y = 0; | |
|
233
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374 static int w, h; |
| 0 | 375 static int delta_x = 1; |
| 376 static int delta_y = 1; | |
| 377 | |
| 378 SDL_Rect dst; | |
|
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379 SDL_Surface *screen = SDL_GetVideoSurface(); |
| 0 | 380 |
|
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381 if ( global_image == NULL ) { |
| 0 | 382 SDL_Surface *temp; |
| 383 | |
|
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384 /* Load the image (could use SDL_image library here) */ |
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385 temp = SDL_LoadBMP(LOGO_FILE); |
| 0 | 386 if ( temp == NULL ) { |
| 387 return; | |
| 388 } | |
|
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389 w = temp->w; |
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390 h = temp->h; |
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391 |
|
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392 /* Convert the image into the screen format */ |
|
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393 global_image = SDL_CreateRGBSurface( |
| 0 | 394 SDL_SWSURFACE, |
|
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395 w, h, |
|
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396 screen->format->BitsPerPixel, |
|
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397 screen->format->Rmask, |
|
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398 screen->format->Gmask, |
|
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399 screen->format->Bmask, |
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400 screen->format->Amask); |
|
492
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|
401 if ( global_image ) { |
|
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|
402 SDL_BlitSurface(temp, NULL, global_image, NULL); |
| 0 | 403 } |
| 404 SDL_FreeSurface(temp); | |
|
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405 |
|
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|
406 /* Make sure that the texture conversion is okay */ |
|
492
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|
407 if ( ! global_image ) { |
| 0 | 408 return; |
| 409 } | |
| 410 } | |
| 411 | |
|
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412 /* Move the image around |
| 0 | 413 Note that we do not clear the old position. This is because we |
| 414 perform a glClear() which clears the framebuffer and then only | |
| 415 update the new area. | |
| 416 Note that you can also achieve interesting effects by modifying | |
| 417 the screen surface alpha channel. It's set to 255 by default.. | |
| 418 */ | |
|
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419 x += delta_x; |
|
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420 if ( x < 0 ) { |
|
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421 x = 0; |
|
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422 delta_x = -delta_x; |
|
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423 } else |
|
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Modified the logo texture load to accept any width/height image
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|
424 if ( (x+w) > screen->w ) { |
|
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Modified the logo texture load to accept any width/height image
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425 x = screen->w-w; |
|
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426 delta_x = -delta_x; |
| 0 | 427 } |
|
234
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428 y += delta_y; |
|
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429 if ( y < 0 ) { |
|
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430 y = 0; |
|
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431 delta_y = -delta_y; |
|
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432 } else |
|
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Modified the logo texture load to accept any width/height image
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433 if ( (y+h) > screen->h ) { |
|
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434 y = screen->h-h; |
|
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Modified the logo texture load to accept any width/height image
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|
435 delta_y = -delta_y; |
|
233
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|
436 } |
|
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|
437 dst.x = x; |
|
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Modified the logo texture load to accept any width/height image
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438 dst.y = y; |
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439 dst.w = w; |
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440 dst.h = h; |
|
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441 SDL_BlitSurface(global_image, NULL, screen, &dst); |
|
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442 |
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443 /* Show the image on the screen */ |
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444 SDL_UpdateRects(screen, 1, &dst); |
| 0 | 445 } |
| 446 | |
| 447 int RunGLTest( int argc, char* argv[], | |
|
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448 int logo, int logocursor, int slowly, int bpp, float gamma, int noframe, int fsaa ) |
| 0 | 449 { |
| 450 int i; | |
| 451 int rgb_size[3]; | |
| 452 int w = 640; | |
| 453 int h = 480; | |
| 454 int done = 0; | |
| 455 int frames; | |
| 456 Uint32 start_time, this_time; | |
| 457 float color[8][3]= {{ 1.0, 1.0, 0.0}, | |
| 458 { 1.0, 0.0, 0.0}, | |
| 459 { 0.0, 0.0, 0.0}, | |
| 460 { 0.0, 1.0, 0.0}, | |
| 461 { 0.0, 1.0, 1.0}, | |
| 462 { 1.0, 1.0, 1.0}, | |
| 463 { 1.0, 0.0, 1.0}, | |
| 464 { 0.0, 0.0, 1.0}}; | |
| 465 float cube[8][3]= {{ 0.5, 0.5, -0.5}, | |
| 466 { 0.5, -0.5, -0.5}, | |
| 467 {-0.5, -0.5, -0.5}, | |
| 468 {-0.5, 0.5, -0.5}, | |
| 469 {-0.5, 0.5, 0.5}, | |
| 470 { 0.5, 0.5, 0.5}, | |
| 471 { 0.5, -0.5, 0.5}, | |
| 472 {-0.5, -0.5, 0.5}}; | |
| 473 Uint32 video_flags; | |
| 474 int value; | |
| 475 | |
| 476 if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) { | |
| 477 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 478 exit( 1 ); | |
| 479 } | |
| 480 | |
| 481 /* See if we should detect the display depth */ | |
| 482 if ( bpp == 0 ) { | |
| 483 if ( SDL_GetVideoInfo()->vfmt->BitsPerPixel <= 8 ) { | |
| 484 bpp = 8; | |
| 485 } else { | |
| 486 bpp = 16; /* More doesn't seem to work */ | |
| 487 } | |
| 488 } | |
| 489 | |
| 490 /* Set the flags we want to use for setting the video mode */ | |
|
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491 if ( logo && USE_DEPRECATED_OPENGLBLIT ) { |
| 0 | 492 video_flags = SDL_OPENGLBLIT; |
| 493 } else { | |
| 494 video_flags = SDL_OPENGL; | |
| 495 } | |
| 496 for ( i=1; argv[i]; ++i ) { | |
|
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497 if ( strcmp(argv[i], "-fullscreen") == 0 ) { |
| 0 | 498 video_flags |= SDL_FULLSCREEN; |
| 499 } | |
| 500 } | |
| 501 | |
|
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502 if (noframe) { |
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503 video_flags |= SDL_NOFRAME; |
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504 } |
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505 |
| 0 | 506 /* Initialize the display */ |
| 507 switch (bpp) { | |
| 508 case 8: | |
|
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509 rgb_size[0] = 3; |
| 0 | 510 rgb_size[1] = 3; |
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511 rgb_size[2] = 2; |
| 0 | 512 break; |
| 513 case 15: | |
| 514 case 16: | |
| 515 rgb_size[0] = 5; | |
| 516 rgb_size[1] = 5; | |
| 517 rgb_size[2] = 5; | |
| 518 break; | |
| 519 default: | |
| 520 rgb_size[0] = 8; | |
| 521 rgb_size[1] = 8; | |
| 522 rgb_size[2] = 8; | |
| 523 break; | |
| 524 } | |
| 525 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, rgb_size[0] ); | |
| 526 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, rgb_size[1] ); | |
| 527 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, rgb_size[2] ); | |
| 528 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 ); | |
| 529 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); | |
|
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530 if ( fsaa ) { |
|
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531 SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 ); |
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532 SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, fsaa ); |
|
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533 } |
| 0 | 534 if ( SDL_SetVideoMode( w, h, bpp, video_flags ) == NULL ) { |
| 535 fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError()); | |
| 536 SDL_Quit(); | |
| 537 exit(1); | |
| 538 } | |
| 539 | |
| 540 printf("Screen BPP: %d\n", SDL_GetVideoSurface()->format->BitsPerPixel); | |
| 541 printf("\n"); | |
| 542 printf( "Vendor : %s\n", glGetString( GL_VENDOR ) ); | |
| 543 printf( "Renderer : %s\n", glGetString( GL_RENDERER ) ); | |
| 544 printf( "Version : %s\n", glGetString( GL_VERSION ) ); | |
| 545 printf( "Extensions : %s\n", glGetString( GL_EXTENSIONS ) ); | |
| 546 printf("\n"); | |
| 547 | |
| 548 SDL_GL_GetAttribute( SDL_GL_RED_SIZE, &value ); | |
| 549 printf( "SDL_GL_RED_SIZE: requested %d, got %d\n", rgb_size[0],value); | |
| 550 SDL_GL_GetAttribute( SDL_GL_GREEN_SIZE, &value ); | |
| 551 printf( "SDL_GL_GREEN_SIZE: requested %d, got %d\n", rgb_size[1],value); | |
| 552 SDL_GL_GetAttribute( SDL_GL_BLUE_SIZE, &value ); | |
| 553 printf( "SDL_GL_BLUE_SIZE: requested %d, got %d\n", rgb_size[2],value); | |
| 554 SDL_GL_GetAttribute( SDL_GL_DEPTH_SIZE, &value ); | |
| 555 printf( "SDL_GL_DEPTH_SIZE: requested %d, got %d\n", bpp, value ); | |
| 556 SDL_GL_GetAttribute( SDL_GL_DOUBLEBUFFER, &value ); | |
| 557 printf( "SDL_GL_DOUBLEBUFFER: requested 1, got %d\n", value ); | |
|
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558 if ( fsaa ) { |
|
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559 SDL_GL_GetAttribute( SDL_GL_MULTISAMPLEBUFFERS, &value ); |
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560 printf( "SDL_GL_MULTISAMPLEBUFFERS: requested 1, got %d\n", value ); |
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561 SDL_GL_GetAttribute( SDL_GL_MULTISAMPLESAMPLES, &value ); |
|
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562 printf( "SDL_GL_MULTISAMPLESAMPLES: requested %d, got %d\n", fsaa, value ); |
|
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563 } |
| 0 | 564 |
| 565 /* Set the window manager title bar */ | |
| 566 SDL_WM_SetCaption( "SDL GL test", "testgl" ); | |
| 567 | |
| 568 /* Set the gamma for the window */ | |
| 569 if ( gamma != 0.0 ) { | |
| 570 SDL_SetGamma(gamma, gamma, gamma); | |
| 571 } | |
| 572 | |
| 573 glViewport( 0, 0, w, h ); | |
| 574 glMatrixMode( GL_PROJECTION ); | |
| 575 glLoadIdentity( ); | |
| 576 | |
| 577 glOrtho( -2.0, 2.0, -2.0, 2.0, -20.0, 20.0 ); | |
| 578 | |
| 579 glMatrixMode( GL_MODELVIEW ); | |
| 580 glLoadIdentity( ); | |
| 581 | |
| 582 glEnable(GL_DEPTH_TEST); | |
| 583 | |
| 584 glDepthFunc(GL_LESS); | |
| 585 | |
| 586 glShadeModel(GL_SMOOTH); | |
| 587 | |
| 588 /* Loop until done. */ | |
| 589 start_time = SDL_GetTicks(); | |
| 590 frames = 0; | |
| 591 while( !done ) { | |
| 592 GLenum gl_error; | |
| 593 char* sdl_error; | |
| 594 SDL_Event event; | |
| 595 | |
| 596 /* Do our drawing, too. */ | |
| 597 glClearColor( 0.0, 0.0, 0.0, 1.0 ); | |
| 598 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); | |
| 599 | |
| 600 glBegin( GL_QUADS ); | |
| 601 | |
| 602 #ifdef SHADED_CUBE | |
| 603 glColor3fv(color[0]); | |
| 604 glVertex3fv(cube[0]); | |
| 605 glColor3fv(color[1]); | |
| 606 glVertex3fv(cube[1]); | |
| 607 glColor3fv(color[2]); | |
| 608 glVertex3fv(cube[2]); | |
| 609 glColor3fv(color[3]); | |
| 610 glVertex3fv(cube[3]); | |
| 611 | |
| 612 glColor3fv(color[3]); | |
| 613 glVertex3fv(cube[3]); | |
| 614 glColor3fv(color[4]); | |
| 615 glVertex3fv(cube[4]); | |
| 616 glColor3fv(color[7]); | |
| 617 glVertex3fv(cube[7]); | |
| 618 glColor3fv(color[2]); | |
| 619 glVertex3fv(cube[2]); | |
| 620 | |
| 621 glColor3fv(color[0]); | |
| 622 glVertex3fv(cube[0]); | |
| 623 glColor3fv(color[5]); | |
| 624 glVertex3fv(cube[5]); | |
| 625 glColor3fv(color[6]); | |
| 626 glVertex3fv(cube[6]); | |
| 627 glColor3fv(color[1]); | |
| 628 glVertex3fv(cube[1]); | |
| 629 | |
| 630 glColor3fv(color[5]); | |
| 631 glVertex3fv(cube[5]); | |
| 632 glColor3fv(color[4]); | |
| 633 glVertex3fv(cube[4]); | |
| 634 glColor3fv(color[7]); | |
| 635 glVertex3fv(cube[7]); | |
| 636 glColor3fv(color[6]); | |
| 637 glVertex3fv(cube[6]); | |
| 638 | |
| 639 glColor3fv(color[5]); | |
| 640 glVertex3fv(cube[5]); | |
| 641 glColor3fv(color[0]); | |
| 642 glVertex3fv(cube[0]); | |
| 643 glColor3fv(color[3]); | |
| 644 glVertex3fv(cube[3]); | |
| 645 glColor3fv(color[4]); | |
| 646 glVertex3fv(cube[4]); | |
| 647 | |
| 648 glColor3fv(color[6]); | |
| 649 glVertex3fv(cube[6]); | |
| 650 glColor3fv(color[1]); | |
| 651 glVertex3fv(cube[1]); | |
| 652 glColor3fv(color[2]); | |
| 653 glVertex3fv(cube[2]); | |
| 654 glColor3fv(color[7]); | |
| 655 glVertex3fv(cube[7]); | |
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656 #else /* flat cube */ |
| 0 | 657 glColor3f(1.0, 0.0, 0.0); |
| 658 glVertex3fv(cube[0]); | |
| 659 glVertex3fv(cube[1]); | |
| 660 glVertex3fv(cube[2]); | |
| 661 glVertex3fv(cube[3]); | |
| 662 | |
| 663 glColor3f(0.0, 1.0, 0.0); | |
| 664 glVertex3fv(cube[3]); | |
| 665 glVertex3fv(cube[4]); | |
| 666 glVertex3fv(cube[7]); | |
| 667 glVertex3fv(cube[2]); | |
| 668 | |
| 669 glColor3f(0.0, 0.0, 1.0); | |
| 670 glVertex3fv(cube[0]); | |
| 671 glVertex3fv(cube[5]); | |
| 672 glVertex3fv(cube[6]); | |
| 673 glVertex3fv(cube[1]); | |
| 674 | |
| 675 glColor3f(0.0, 1.0, 1.0); | |
| 676 glVertex3fv(cube[5]); | |
| 677 glVertex3fv(cube[4]); | |
| 678 glVertex3fv(cube[7]); | |
| 679 glVertex3fv(cube[6]); | |
| 680 | |
| 681 glColor3f(1.0, 1.0, 0.0); | |
| 682 glVertex3fv(cube[5]); | |
| 683 glVertex3fv(cube[0]); | |
| 684 glVertex3fv(cube[3]); | |
| 685 glVertex3fv(cube[4]); | |
| 686 | |
| 687 glColor3f(1.0, 0.0, 1.0); | |
| 688 glVertex3fv(cube[6]); | |
| 689 glVertex3fv(cube[1]); | |
| 690 glVertex3fv(cube[2]); | |
| 691 glVertex3fv(cube[7]); | |
| 692 #endif /* SHADED_CUBE */ | |
| 693 | |
| 694 glEnd( ); | |
| 695 | |
| 696 glMatrixMode(GL_MODELVIEW); | |
| 697 glRotatef(5.0, 1.0, 1.0, 1.0); | |
| 698 | |
| 699 /* Draw 2D logo onto the 3D display */ | |
| 700 if ( logo ) { | |
|
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701 if ( USE_DEPRECATED_OPENGLBLIT ) { |
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702 DrawLogoBlit(); |
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703 } else { |
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704 DrawLogoTexture(); |
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705 } |
| 0 | 706 } |
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707 if ( logocursor ) { |
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708 DrawLogoCursor(); |
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709 } |
| 0 | 710 |
| 711 SDL_GL_SwapBuffers( ); | |
| 712 | |
| 713 /* Check for error conditions. */ | |
| 714 gl_error = glGetError( ); | |
| 715 | |
| 716 if( gl_error != GL_NO_ERROR ) { | |
| 717 fprintf( stderr, "testgl: OpenGL error: %d\n", gl_error ); | |
| 718 } | |
| 719 | |
| 720 sdl_error = SDL_GetError( ); | |
| 721 | |
| 722 if( sdl_error[0] != '\0' ) { | |
| 723 fprintf(stderr, "testgl: SDL error '%s'\n", sdl_error); | |
| 724 SDL_ClearError(); | |
| 725 } | |
| 726 | |
| 727 /* Allow the user to see what's happening */ | |
| 728 if ( slowly ) { | |
| 729 SDL_Delay( 20 ); | |
| 730 } | |
| 731 | |
| 732 /* Check if there's a pending event. */ | |
| 733 while( SDL_PollEvent( &event ) ) { | |
| 734 done = HandleEvent(&event); | |
| 735 } | |
| 736 ++frames; | |
| 737 } | |
| 738 | |
| 739 /* Print out the frames per second */ | |
| 740 this_time = SDL_GetTicks(); | |
| 741 if ( this_time != start_time ) { | |
| 742 printf("%2.2f FPS\n", | |
| 743 ((float)frames/(this_time-start_time))*1000.0); | |
| 744 } | |
| 745 | |
|
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746 if ( global_image ) { |
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747 SDL_FreeSurface(global_image); |
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748 global_image = NULL; |
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749 } |
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750 if ( global_texture ) { |
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751 glDeleteTextures( 1, &global_texture ); |
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752 global_texture = 0; |
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753 } |
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754 if ( cursor_texture ) { |
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755 glDeleteTextures( 1, &cursor_texture ); |
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Added an option to show the logo at the cursor position for debugging
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756 cursor_texture = 0; |
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757 } |
|
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758 |
| 0 | 759 /* Destroy our GL context, etc. */ |
| 760 SDL_Quit( ); | |
| 761 return(0); | |
| 762 } | |
| 763 | |
| 764 int main(int argc, char *argv[]) | |
| 765 { | |
|
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766 int i, logo, logocursor = 0; |
| 0 | 767 int numtests; |
| 768 int bpp = 0; | |
| 769 int slowly; | |
| 770 float gamma = 0.0; | |
|
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771 int noframe = 0; |
|
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772 int fsaa = 0; |
| 0 | 773 |
| 774 logo = 0; | |
| 775 slowly = 0; | |
| 776 numtests = 1; | |
| 777 for ( i=1; argv[i]; ++i ) { | |
| 778 if ( strcmp(argv[i], "-twice") == 0 ) { | |
| 779 ++numtests; | |
| 780 } | |
| 781 if ( strcmp(argv[i], "-logo") == 0 ) { | |
| 782 logo = 1; | |
|
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783 USE_DEPRECATED_OPENGLBLIT = SDL_FALSE; |
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784 } |
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785 if ( strcmp(argv[i], "-logoblit") == 0 ) { |
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786 logo = 1; |
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787 USE_DEPRECATED_OPENGLBLIT = SDL_TRUE; |
| 0 | 788 } |
|
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789 if ( strcmp(argv[i], "-logocursor") == 0 ) { |
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790 logocursor = 1; |
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791 } |
| 0 | 792 if ( strcmp(argv[i], "-slow") == 0 ) { |
| 793 slowly = 1; | |
| 794 } | |
| 795 if ( strcmp(argv[i], "-bpp") == 0 ) { | |
| 796 bpp = atoi(argv[++i]); | |
| 797 } | |
| 798 if ( strcmp(argv[i], "-gamma") == 0 ) { | |
| 799 gamma = (float)atof(argv[++i]); | |
| 800 } | |
|
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801 if ( strcmp(argv[i], "-noframe") == 0 ) { |
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802 noframe = 1; |
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803 } |
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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804 if ( strcmp(argv[i], "-fsaa") == 0 ) { |
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805 ++fsaa; |
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806 } |
| 0 | 807 if ( strncmp(argv[i], "-h", 2) == 0 ) { |
| 808 printf( | |
|
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809 "Usage: %s [-twice] [-logo] [-logocursor] [-slow] [-bpp n] [-gamma n] [-noframe] [-fsaa] [-fullscreen]\n", |
| 0 | 810 argv[0]); |
| 811 exit(0); | |
| 812 } | |
| 813 } | |
| 814 for ( i=0; i<numtests; ++i ) { | |
|
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815 RunGLTest(argc, argv, logo, logocursor, slowly, bpp, gamma, noframe, fsaa); |
| 0 | 816 } |
| 817 return 0; | |
| 818 } | |
| 819 | |
| 820 #else /* HAVE_OPENGL */ | |
| 821 | |
| 822 int main(int argc, char *argv[]) | |
| 823 { | |
| 824 printf("No OpenGL support on this system\n"); | |
| 825 return 1; | |
| 826 } | |
| 827 | |
| 828 #endif /* HAVE_OPENGL */ |