diff options
Diffstat (limited to 'src/glut/fbdev/gamemode.c')
-rw-r--r-- | src/glut/fbdev/gamemode.c | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/src/glut/fbdev/gamemode.c b/src/glut/fbdev/gamemode.c deleted file mode 100644 index 30be36af7af..00000000000 --- a/src/glut/fbdev/gamemode.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * Copyright (C) 1995-2006 Brian Paul - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * Library for glut using mesa fbdev driver - * - * Written by Sean D'Epagnier (c) 2006 - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <linux/fb.h> - -#include <GL/glut.h> - -#include "internal.h" - -int GameMode; - -static int ModePossible, DispChanged; -static struct fb_var_screeninfo NormVarInfo, GameVarInfo; - -static GLFBDevContextPtr GameContext; -static GLFBDevVisualPtr NormVisual; - -/* storage for non-gamemode callbacks */ -void (*KeyFuncs[2])(unsigned char key, int x, int y); -static void (*NormFuncs[8])(); - -static const char*SetOpers(const char *p, unsigned int *min, unsigned int *max) -{ - char *endptr; - int comp = *p, val, neq = 0; - - if(p[1] == '=') { - neq = 0; - p++; - } - - val = strtol(p+1, &endptr, 10); - if(endptr == p+1) - return p; - - switch(comp) { - case '=': - *min = *max = val; - break; - case '!': - *min = val + 1; - *max = val - 1; - break; - case '<': - *max = val - neq; - break; - case '>': - *min = val + neq; - break; - } - return endptr; -} - -void glutGameModeString(const char *string) -{ - const char *p = string; - unsigned int minb = 15, maxb = 32; - unsigned int minw = 0, maxw = -1; - unsigned int minh, maxh = -1; - unsigned int minf = 0, maxf = MAX_VSYNC; - char *endptr; - int count = -1, val; - - ModePossible = 0; - - if(DisplayMode & GLUT_INDEX) - minb = maxb = 8; - - again: - count++; - if((val = strtol(p, &endptr, 10)) && *endptr=='x') { - maxw = minw = val; - p = endptr + 1; - maxh = minh = strtol(p, &endptr, 10); - p = endptr; - goto again; - } - - if(*p == ':') { - minb = strtol(p+1, &endptr, 10); - p = endptr; - if(DisplayMode & GLUT_INDEX) { - if(minb != 8) - return; - } else - if(minb != 15 && minb != 16 && minb != 24 && minb != 32) - return; - maxb = minb; - goto again; - } - - if(*p == '@') { - minf = strtol(p+1, &endptr, 10) - 5; - maxf = minf + 10; - p = endptr; - goto again; - } - - if(count == 0) - while(*p) { - if(*p == ' ') - p++; - else - if(memcmp(p, "bpp", 3) == 0) - p = SetOpers(p+3, &minb, &maxb); - else - if(memcmp(p, "height", 6) == 0) - p = SetOpers(p+6, &minh, &maxh); - else - if(memcmp(p, "hertz", 5) == 0) - p = SetOpers(p+5, &minf, &maxf); - else - if(memcmp(p, "width", 5) == 0) - p = SetOpers(p+5, &minw, &maxw); - else - if(p = strchr(p, ' ')) - p++; - else - break; - } - - NormVarInfo = VarInfo; - if(!ParseFBModes(minw, maxw, minh, maxh, minf, maxf)) - return; - - GameVarInfo = VarInfo; - VarInfo = NormVarInfo; - - /* determine optimal bitdepth, make sure we have enough video memory */ - if(VarInfo.bits_per_pixel && VarInfo.bits_per_pixel <= maxb) - GameVarInfo.bits_per_pixel = VarInfo.bits_per_pixel; - else - GameVarInfo.bits_per_pixel = maxb; - - while(FixedInfo.smem_len < GameVarInfo.xres * GameVarInfo.yres - * GameVarInfo.bits_per_pixel / 8) { - if(GameVarInfo.bits_per_pixel < minb) - return; - GameVarInfo.bits_per_pixel = ((GameVarInfo.bits_per_pixel+1)/8)*8-8; - } - - ModePossible = 1; -} - -int glutEnterGameMode(void) -{ - if(ActiveMenu) - return 0; - - if(!ModePossible) - return 0; - - if(GameMode) { - if(!memcmp(&GameVarInfo, &VarInfo, sizeof VarInfo)) { - DispChanged = 0; - return 1; - } - glutLeaveGameMode(); - } - - if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &GameVarInfo)) - return 0; - - NormVarInfo = VarInfo; - VarInfo = GameVarInfo; - - NormVisual = Visual; - SetVideoMode(); - CreateVisual(); - CreateBuffer(); - - if(!(GameContext = glFBDevCreateContext(Visual, NULL))) { - sprintf(exiterror, "Failure to create Context\n"); - exit(0); - } - - if(!glFBDevMakeCurrent( GameContext, Buffer, Buffer )) { - sprintf(exiterror, "Failure to Make Game Current\n"); - exit(0); - } - - InitializeCursor(); - - KeyFuncs[0] = KeyboardFunc; - KeyFuncs[1] = KeyboardUpFunc; - - NormFuncs[0] = DisplayFunc; - NormFuncs[1] = ReshapeFunc; - NormFuncs[2] = MouseFunc; - NormFuncs[3] = MotionFunc; - NormFuncs[4] = PassiveMotionFunc; - NormFuncs[5] = VisibilityFunc; - NormFuncs[6] = SpecialFunc; - NormFuncs[7] = SpecialUpFunc; - - DisplayFunc = NULL; - ReshapeFunc = NULL; - KeyboardFunc = NULL; - KeyboardUpFunc = NULL; - MouseFunc = NULL; - MotionFunc = NULL; - PassiveMotionFunc = NULL; - VisibilityFunc = NULL; - SpecialFunc = SpecialUpFunc = NULL; - - DispChanged = 1; - GameMode = 1; - Visible = 1; - VisibleSwitch = 1; - Redisplay = 1; - return 1; -} - -void glutLeaveGameMode(void) -{ - if(!GameMode) - return; - - glFBDevDestroyContext(GameContext); - glFBDevDestroyVisual(Visual); - - VarInfo = NormVarInfo; - Visual = NormVisual; - - if(Visual) { - SetVideoMode(); - CreateBuffer(); - - if(!glFBDevMakeCurrent( Context, Buffer, Buffer )) { - sprintf(exiterror, "Failure to Make Current\n"); - exit(0); - } - - Redisplay = 1; - } - - KeyboardFunc = KeyFuncs[0]; - KeyboardUpFunc = KeyFuncs[1]; - - DisplayFunc = NormFuncs[0]; - ReshapeFunc = NormFuncs[1]; - MouseFunc = NormFuncs[2]; - MotionFunc = NormFuncs[3]; - PassiveMotionFunc = NormFuncs[4]; - VisibilityFunc = NormFuncs[5]; - SpecialFunc = NormFuncs[6]; - SpecialUpFunc = NormFuncs[7]; - - GameMode = 0; -} - -int glutGameModeGet(GLenum mode) { - switch(mode) { - case GLUT_GAME_MODE_ACTIVE: - return GameMode; - case GLUT_GAME_MODE_POSSIBLE: - return ModePossible; - case GLUT_GAME_MODE_DISPLAY_CHANGED: - return DispChanged; - } - - if(!ModePossible) - return -1; - - switch(mode) { - case GLUT_GAME_MODE_WIDTH: - return GameVarInfo.xres; - case GLUT_GAME_MODE_HEIGHT: - return GameVarInfo.yres; - case GLUT_GAME_MODE_PIXEL_DEPTH: - return GameVarInfo.bits_per_pixel; - case GLUT_GAME_MODE_REFRESH_RATE: - return 1E12/GameVarInfo.pixclock - / (GameVarInfo.left_margin + GameVarInfo.xres - + GameVarInfo.right_margin + GameVarInfo.hsync_len) - / (GameVarInfo.upper_margin + GameVarInfo.yres - + GameVarInfo.lower_margin + GameVarInfo.vsync_len); - } -} |