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Diffstat (limited to 'src/glut/fbdev/state.c')
| -rw-r--r-- | src/glut/fbdev/state.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/glut/fbdev/state.c b/src/glut/fbdev/state.c new file mode 100644 index 0000000..dadd2ad --- /dev/null +++ b/src/glut/fbdev/state.c @@ -0,0 +1,205 @@ +/* + * 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 <sys/time.h> + +#include <linux/fb.h> + +#include <GL/glut.h> + +#include "../../mesa/main/config.h" + +#include "internal.h" + +int AccumSize = 16; /* per channel size of accumulation buffer */ +int DepthSize = DEFAULT_SOFTWARE_DEPTH_BITS; +int StencilSize = STENCIL_BITS; + +int glutGet(GLenum state) +{ + switch(state) { + case GLUT_WINDOW_X: + return 0; + case GLUT_WINDOW_Y: + return 0; + case GLUT_INIT_WINDOW_WIDTH: + case GLUT_WINDOW_WIDTH: + case GLUT_SCREEN_WIDTH: + return VarInfo.xres; + case GLUT_INIT_WINDOW_HEIGHT: + case GLUT_WINDOW_HEIGHT: + case GLUT_SCREEN_HEIGHT: + return VarInfo.yres; + case GLUT_WINDOW_BUFFER_SIZE: + return VarInfo.bits_per_pixel; + case GLUT_WINDOW_STENCIL_SIZE: + return StencilSize; + case GLUT_WINDOW_DEPTH_SIZE: + return DepthSize; + case GLUT_WINDOW_RED_SIZE: + return VarInfo.red.length; + case GLUT_WINDOW_GREEN_SIZE: + return VarInfo.green.length; + case GLUT_WINDOW_BLUE_SIZE: + return VarInfo.green.length; + case GLUT_WINDOW_ALPHA_SIZE: + return VarInfo.transp.length; + case GLUT_WINDOW_ACCUM_RED_SIZE: + case GLUT_WINDOW_ACCUM_GREEN_SIZE: + case GLUT_WINDOW_ACCUM_BLUE_SIZE: + case GLUT_WINDOW_ACCUM_ALPHA_SIZE: + return AccumSize; + case GLUT_WINDOW_DOUBLEBUFFER: + if(DisplayMode & GLUT_DOUBLE) + return 1; + return 0; + case GLUT_WINDOW_RGBA: + if(DisplayMode & GLUT_INDEX) + return 0; + return 1; + case GLUT_WINDOW_PARENT: + return 0; + case GLUT_WINDOW_NUM_CHILDREN: + return 0; + case GLUT_WINDOW_COLORMAP_SIZE: + if(DisplayMode & GLUT_INDEX) + return 256; + return 0; + case GLUT_WINDOW_NUM_SAMPLES: + return 0; + case GLUT_WINDOW_STEREO: + return 0; + case GLUT_WINDOW_CURSOR: + return CurrentCursor; + case GLUT_SCREEN_WIDTH_MM: + return VarInfo.width; + case GLUT_SCREEN_HEIGHT_MM: + return VarInfo.height; + case GLUT_MENU_NUM_ITEMS: + if(CurrentMenu) + return Menus[CurrentMenu].NumItems; + return 0; + case GLUT_DISPLAY_MODE_POSSIBLE: + if((DisplayMode & GLUT_MULTISAMPLE) + || (DisplayMode & GLUT_STEREO) + || (DisplayMode & GLUT_LUMINANCE) + || (DisplayMode & GLUT_ALPHA) && (DisplayMode & GLUT_INDEX)) + return 0; + return 1; + case GLUT_INIT_DISPLAY_MODE: + return DisplayMode; + case GLUT_INIT_WINDOW_X: + case GLUT_INIT_WINDOW_Y: + return 0; + case GLUT_ELAPSED_TIME: + { + static struct timeval tv; + gettimeofday(&tv, 0); + return 1000 * (tv.tv_sec - StartTime.tv_sec) + + (tv.tv_usec - StartTime.tv_usec) / 1000; + } + } + return -1; +} + +int glutLayerGet(GLenum info) +{ + switch(info) { + case GLUT_OVERLAY_POSSIBLE: + return 0; + case GLUT_LAYER_IN_USE: + return GLUT_NORMAL; + case GLUT_HAS_OVERLAY: + return 0; + case GLUT_TRANSPARENT_INDEX: + return -1; + case GLUT_NORMAL_DAMAGED: + return Redisplay; + case GLUT_OVERLAY_DAMAGED: + return -1; + } + return -1; +} + +int glutDeviceGet(GLenum info) +{ + switch(info) { + case GLUT_HAS_KEYBOARD: + return ConsoleFD != -1 ? 1 : 0; + case GLUT_HAS_MOUSE: + case GLUT_NUM_MOUSE_BUTTONS: + return NumMouseButtons; + case GLUT_HAS_SPACEBALL: + case GLUT_HAS_DIAL_AND_BUTTON_BOX: + case GLUT_HAS_TABLET: + return 0; + case GLUT_NUM_SPACEBALL_BUTTONS: + case GLUT_NUM_BUTTON_BOX_BUTTONS: + case GLUT_NUM_DIALS: + case GLUT_NUM_TABLET_BUTTONS: + return 0; + case GLUT_DEVICE_IGNORE_KEY_REPEAT: + return KeyRepeatMode == GLUT_KEY_REPEAT_OFF; + case GLUT_DEVICE_KEY_REPEAT: + return KeyRepeatMode; + case GLUT_JOYSTICK_POLL_RATE: + case GLUT_HAS_JOYSTICK: + case GLUT_JOYSTICK_BUTTONS: + case GLUT_JOYSTICK_AXES: + return 0; + } + return -1; +} + +int glutVideoResizeGet(GLenum param) +{ + switch(param) { + case GLUT_VIDEO_RESIZE_POSSIBLE: + return 0; + + } + return -1; +} + +int glutGetModifiers(void){ + return KeyboardModifiers; +} + +int glutExtensionSupported(const char *extension) +{ + const char *exts = (const char *) glGetString(GL_EXTENSIONS); + const char *start = exts; + int len = strlen(extension); + for(;;) { + const char *p = strstr(exts, extension); + if(!p) + break; + if((p == start || p[-1] == ' ') && (p[len] == ' ' || p[len] == 0)) + return 1; + exts = p + len; + } + return 0; +} |