diff options
Diffstat (limited to 'src/glut')
| -rw-r--r-- | src/glut/fbdev/fbdev.c | 17 | ||||
| -rw-r--r-- | src/glut/fbdev/glut_fbdev.c | 2199 |
2 files changed, 16 insertions, 2200 deletions
diff --git a/src/glut/fbdev/fbdev.c b/src/glut/fbdev/fbdev.c index 3b63cd70ea..80237f5bc7 100644 --- a/src/glut/fbdev/fbdev.c +++ b/src/glut/fbdev/fbdev.c @@ -173,6 +173,9 @@ void glutInit (int *argcp, char **argv) int RequiredWidth = 0, RequiredHeight; char *fbdev; + stack_t stack; + struct sigaction sa; + /* parse out args */ for (i = 1; i < *argcp;) { if (!strcmp(argv[i], "-geometry")) { @@ -239,7 +242,19 @@ void glutInit (int *argcp, char **argv) gettimeofday(&StartTime, 0); atexit(Cleanup); - signal(SIGSEGV, CrashHandler); + /* set up SIGSEGV to use alternate stack */ + stack.ss_flags = 0; + stack.ss_size = SIGSTKSZ; + if(!(stack.ss_sp = malloc(SIGSTKSZ))) + sprintf(exiterror, "Failed to allocate alternate stack for SIGSEGV!\n"); + + sigaltstack(&stack, NULL); + + sa.sa_handler = CrashHandler; + sa.sa_flags = SA_ONSTACK; + sigemptyset(&sa.sa_mask); + sigaction(SIGSEGV, &sa, NULL); + signal(SIGINT, CrashHandler); signal(SIGTERM, CrashHandler); signal(SIGABRT, CrashHandler); diff --git a/src/glut/fbdev/glut_fbdev.c b/src/glut/fbdev/glut_fbdev.c deleted file mode 100644 index 3ed8fe90e3..0000000000 --- a/src/glut/fbdev/glut_fbdev.c +++ /dev/null @@ -1,2199 +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 <assert.h> -#include <errno.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <unistd.h> -#include <termios.h> -#include <inttypes.h> - -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sys/types.h> -#include <sys/time.h> -#include <sys/poll.h> -#include <sys/types.h> -#include <sys/kd.h> - -#include <linux/fb.h> -#include <linux/keyboard.h> -#include <linux/vt.h> - -#include <GL/gl.h> -#include <GL/glfbdev.h> -#include <GL/glut.h> - -#include <math.h> - -#include "../../mesa/main/config.h" - -#define MULTIHEAD /* enable multihead hacks, - it allows the program to continue drawing - without reading input when a second fbdev - has keyboard focus it can cause - screen corruption that requires C-l to fix */ - -#define FBMODES "/etc/fb.modes" - -#define HAVE_GPM - -#ifdef HAVE_GPM -#include <gpm.h> -static int GpmMouse; -#endif - -#define MOUSEDEV "/dev/gpmdata" - -static int CurrentVT; -static int ConsoleFD = - 1; - -/* save settings to restore on exit */ -static int OldKDMode = -1; -static int OldMode; -struct vt_mode OldVTMode; -struct termios OldTermios; - -static struct fb_fix_screeninfo FixedInfo; -static struct fb_var_screeninfo VarInfo, OrigVarInfo; -struct fb_cmap ColorMap; - -static int DesiredDepth = 0; - -static int FrameBufferFD = -1; -static caddr_t FrameBuffer = (caddr_t) -1; -static caddr_t BackBuffer = NULL; -static int DisplayMode; - -static int AccumSize = 16; /* per channel size of accumulation buffer */ -static int DepthSize = DEFAULT_SOFTWARE_DEPTH_BITS; -static int StencilSize = STENCIL_BITS; - -#define MENU_FONT_WIDTH 9 -#define MENU_FONT_HEIGHT 15 -#define MENU_FONT GLUT_BITMAP_9_BY_15 -#define SUBMENU_OFFSET 20 - -static int AttachedMenus[3]; -static int ActiveMenu; -static int SelectedMenu; -static int CurrentMenu; -static int NumMenus = 1; - -static struct { - int NumItems; - int x, y; - int width; - int selected; - struct { - int value; - int submenu; - char *name; - } *Items; - void (*func)(int); -} *Menus = NULL; - -struct GlutTimer { - int time; - void (*func)(int); - int value; - struct GlutTimer *next; -}; - -struct GlutTimer *GlutTimers = NULL; - -static struct timeval StartTime; - -static int KeyboardModifiers; -static int KeyboardLedState; - -static int MouseFD; -static int NumMouseButtons; -static int MouseX; -static int MouseY; -static double MouseSpeed = 0; -static int CurrentCursor = GLUT_CURSOR_LEFT_ARROW; -/* only display the mouse if there is a registered callback for it */ -static int MouseEnabled = 0; - -/* per window data */ -static GLFBDevContextPtr Context; -static GLFBDevBufferPtr Buffer; -static GLFBDevVisualPtr Visual; -static void (*DisplayFunc)(void) = NULL; -static void (*ReshapeFunc)(int width, int height) = NULL; -static void (*KeyboardFunc)(unsigned char key, int x, int y) = NULL; -static void (*MouseFunc)(int key, int state, int x, int y) = NULL; -static void (*MotionFunc)(int x, int y) = NULL; -static void (*PassiveMotionFunc)(int x, int y) = NULL; -static void (*VisibilityFunc)(int state) = NULL; -static void (*SpecialFunc)(int key, int x, int y) = NULL; -static void (*IdleFunc)(void) = NULL; -static void (*MenuStatusFunc)(int state, int x, int y) = NULL; -static void (*MenuStateFunc)(int state) = NULL; - -static int Redisplay; -static int Visible; -static int VisibleSwitch; -static int Active; -/* we have to poll to see if we are visible - on a framebuffer that is not active */ -static int VisiblePoll; -static int FramebufferIndex; - -static int RequiredWidth; -static int RequiredHeight; -static int InitialWidthHint; -static int InitialHeightHint; - -static char exiterror[256]; - -/* --------- Initialization ------------*/ -/* test if the active console is attached to the same framebuffer */ -static void TestVisible(void) { - struct fb_con2fbmap confb; - struct vt_stat st; - int ret; - ioctl(ConsoleFD, VT_GETSTATE, &st); - confb.console = st.v_active; - - ret = ioctl(FrameBufferFD, FBIOGET_CON2FBMAP, &confb); - - if(ret == -1 || confb.framebuffer == FramebufferIndex) { - VisibleSwitch = 1; - Visible = 0; - VisiblePoll = 0; - } -} - -static void VTSwitchHandler(int sig) -{ - struct vt_stat st; - switch(sig) { - case SIGUSR1: - ioctl(ConsoleFD, VT_RELDISP, 1); - Active = 0; -#ifdef MULTIHEAD - VisiblePoll = 1; - TestVisible(); -#else - VisibleSwitch = 1; - Visible = 0; -#endif - break; - case SIGUSR2: - ioctl(ConsoleFD, VT_GETSTATE, &st); - if(st.v_active) - ioctl(ConsoleFD, VT_RELDISP, VT_ACKACQ); - - /* this is a hack to turn the cursor off */ - ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &VarInfo); - - /* restore color map */ - if(DisplayMode & GLUT_INDEX) { - ColorMap.start = 0; - ColorMap.len = 256; - - if (ioctl(FrameBufferFD, FBIOPUTCMAP, (void *) &ColorMap) < 0) - fprintf(stderr, "ioctl(FBIOPUTCMAP) failed!\n"); - } - - Active = 1; - Visible = 1; - VisibleSwitch = 1; - - Redisplay = 1; - - break; - } -} - -static void Cleanup(void) -{ - if(ConsoleFD >= 0) - if (tcsetattr(0, TCSANOW, &OldTermios) < 0) - fprintf(stderr, "tcsetattr failed\n"); - - if(ConsoleFD > 0) { - /* restore keyboard state */ - if (ioctl(ConsoleFD, VT_SETMODE, &OldVTMode) < 0) - fprintf(stderr, "Failed to set vtmode\n"); - - if (ioctl(ConsoleFD, KDSKBMODE, OldKDMode) < 0) - fprintf(stderr, "ioctl KDSKBMODE failed!\n"); - - if(ioctl(ConsoleFD, KDSETMODE, OldMode) < 0) - fprintf(stderr, "ioctl KDSETMODE failed!\n"); - - close(ConsoleFD); - } - - /* close mouse */ -#ifdef HAVE_GPM - if(GpmMouse) { - if(NumMouseButtons) - Gpm_Close(); - } else -#endif - if(MouseFD >= 0) - close(MouseFD); - - glFBDevMakeCurrent( NULL, NULL, NULL); - - glFBDevDestroyContext(Context); - glFBDevDestroyBuffer(Buffer); - glFBDevDestroyVisual(Visual); - - struct vt_mode VT; - - /* restore original variable screen info */ - if(FrameBufferFD != -1) { - if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &OrigVarInfo)) - fprintf(stderr, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n", - strerror(errno)); - - munmap(FrameBuffer, FixedInfo.smem_len); - close(FrameBufferFD); - } - - /* free allocated back buffer */ - if(DisplayMode & GLUT_DOUBLE) - free(BackBuffer); - - /* free menu items */ - int i, j; - - for(i = 1; i<NumMenus; i++) { - for(i = 1; i<Menus[i].NumItems; i++) - free(Menus[i].Items[j].name); - free(Menus[i].Items); - } - free(Menus); - - if(exiterror[0]) - fprintf(stderr, "[glfbdev glut] %s", exiterror); -} - -static void CrashHandler(int sig) -{ - sprintf(exiterror, "Caught signal %d, cleaning up\n", sig); - exit(0); -} - -static void InitializeVT(int usestdin) -{ - /* terminos settings for straight-through mode */ - if (tcgetattr(0, &OldTermios) < 0) { - sprintf(exiterror, "tcgetattr failed\n"); - exit(0); - } - - struct termios tio = OldTermios; - - tio.c_lflag &= ~(ICANON | ECHO | ISIG); - tio.c_iflag &= ~(ISTRIP | IGNCR | ICRNL | INLCR | IXOFF | IXON); - tio.c_iflag |= IGNBRK; - tio.c_cc[VMIN] = 0; - tio.c_cc[VTIME] = 0; - - if (tcsetattr(0, TCSANOW, &tio) < 0) { - sprintf(exiterror, "tcsetattr failed\n"); - exit(0); - } - - if(fcntl(0, F_SETFL, O_NONBLOCK) < 0) { - sprintf(exiterror, "Failed to set keyboard to non-blocking\n"); - exit(0); - } - - Active = 1; - - if(usestdin) { - ConsoleFD = 0; - return; - } - - /* detect the current vt if it was not specified */ - if(CurrentVT == 0) { - int fd = open("/dev/tty", O_RDWR | O_NDELAY, 0); - struct vt_stat st; - if(fd == -1) { - sprintf(exiterror, "Failed to open /dev/tty\n"); - exit(0); - } - if(ioctl(fd, VT_GETSTATE, &st) == -1) { - fprintf(stderr, "Could not detect current vt, specify with -vt\n"); - fprintf(stderr, "Defaulting to stdin input\n"); - ConsoleFD = 0; - close(fd); - return; - } else - CurrentVT = st.v_active; - - close(fd); - } - - /* open the console tty */ - char console[128]; - sprintf(console, "/dev/tty%d", CurrentVT); - ConsoleFD = open(console, O_RDWR | O_NDELAY, 0); - if (ConsoleFD < 0) { - sprintf(exiterror, "error couldn't open %s," - " defaulting to stdin \n", console); - ConsoleFD = 0; - return; - } - - signal(SIGUSR1, VTSwitchHandler); - signal(SIGUSR2, VTSwitchHandler); - - struct vt_mode vt; - - if (ioctl(ConsoleFD, VT_GETMODE, &OldVTMode) < 0) { - sprintf(exiterror,"Failed to grab %s, defaulting to stdin\n", console); - close(ConsoleFD); - ConsoleFD = 0; - return; - } - - vt = OldVTMode; - - vt.mode = VT_PROCESS; - vt.waitv = 0; - vt.relsig = SIGUSR1; - vt.acqsig = SIGUSR2; - if (ioctl(ConsoleFD, VT_SETMODE, &vt) < 0) { - sprintf(exiterror, "error: ioctl(VT_SETMODE) failed: %s\n", - strerror(errno)); - close(ConsoleFD); - ConsoleFD = 0; - exit(1); - } - - if (ioctl(ConsoleFD, KDGKBMODE, &OldKDMode) < 0) { - fprintf(stderr, "warning: ioctl KDGKBMODE failed!\n"); - OldKDMode = K_XLATE; - } - - if(ioctl(ConsoleFD, KDGETMODE, &OldMode) < 0) - sprintf(exiterror, "Warning: Failed to get terminal mode\n"); - -#ifdef HAVE_GPM - if(!GpmMouse) -#endif - if(ioctl(ConsoleFD, KDSETMODE, KD_GRAPHICS) < 0) - sprintf(exiterror,"Warning: Failed to set terminal to graphics\n"); - - - if (ioctl(ConsoleFD, KDSKBMODE, K_MEDIUMRAW) < 0) { - sprintf(exiterror, "ioctl KDSKBMODE failed!\n"); - tcsetattr(0, TCSANOW, &OldTermios); - exit(0); - } - - if( ioctl(ConsoleFD, KDGKBLED, &KeyboardLedState) < 0) { - sprintf(exiterror, "ioctl KDGKBLED failed!\n"); - exit(0); - } -} - -static void InitializeMouse(void) -{ -#ifdef HAVE_GPM - if(GpmMouse) { - Gpm_Connect conn; - int c; - conn.eventMask = ~0; /* Want to know about all the events */ - conn.defaultMask = 0; /* don't handle anything by default */ - conn.minMod = 0; /* want everything */ - conn.maxMod = ~0; /* all modifiers included */ - if(Gpm_Open(&conn, 0) == -1) { - fprintf(stderr, "Cannot open gpmctl. Continuing without Mouse\n"); - return; - } - - if(!MouseSpeed) - MouseSpeed = 5; - } else -#endif - { - const char *mousedev = getenv("MOUSE"); - if(!mousedev) - mousedev = MOUSEDEV; - if((MouseFD = open(mousedev, O_RDONLY)) < 0) { - fprintf(stderr,"Cannot open %s.\n" - "Continuing without Mouse\n", MOUSEDEV); - return; - } - - if(!MouseSpeed) - MouseSpeed = 1; - } - - NumMouseButtons = 3; -} - -static void removeArgs(int *argcp, char **argv, int num) -{ - int i; - for (i = 0; argv[i+num]; i++) - argv[i] = argv[i+num]; - - argv[i] = NULL; - *argcp -= num; -} - -#define REQPARAM(PARAM) \ - if (i >= *argcp - 1) { \ - fprintf(stderr, PARAM" requires a parameter\n"); \ - exit(0); \ - } - -void glutInit (int *argcp, char **argv) -{ - int i; - int nomouse = 0; - int nokeyboard = 0; - int usestdin = 0; - - /* parse out args */ - for (i = 1; i < *argcp;) { - if (!strcmp(argv[i], "-geometry")) { - REQPARAM("geometry"); - if(sscanf(argv[i+1], "%dx%d", &RequiredWidth, - &RequiredHeight) != 2) { - fprintf(stderr,"Please specify geometry as widthxheight\n"); - exit(0); - } - removeArgs(argcp, &argv[i], 2); - } else - if (!strcmp(argv[i], "-bpp")) { - REQPARAM("bpp"); - if(sscanf(argv[i+1], "%d", &DesiredDepth) != 1) { - fprintf(stderr, "Please specify a parameter for bpp\n"); - exit(0); - } - - removeArgs(argcp, &argv[i], 2); - } else - if (!strcmp(argv[i], "-vt")) { - REQPARAM("vt"); - if(sscanf(argv[i+1], "%d", &CurrentVT) != 1) { - fprintf(stderr, "Please specify a parameter for vt\n"); - exit(0); - } - removeArgs(argcp, &argv[i], 2); - } else - if (!strcmp(argv[i], "-mousespeed")) { - REQPARAM("mousespeed"); - if(sscanf(argv[i+1], "%lf", &MouseSpeed) != 1) { - fprintf(stderr, "Please specify a mouse speed, eg: 2.5\n"); - exit(0); - } - removeArgs(argcp, &argv[i], 2); - } else - if (!strcmp(argv[i], "-nomouse")) { - nomouse = 1; - removeArgs(argcp, &argv[i], 1); - } else - if (!strcmp(argv[i], "-nokeyboard")) { - nokeyboard = 1; - removeArgs(argcp, &argv[i], 1); - } else - if (!strcmp(argv[i], "-stdin")) { - usestdin = 1; - removeArgs(argcp, &argv[i], 1); - } else - if (!strcmp(argv[i], "-gpmmouse")) { -#ifdef HAVE_GPM - GpmMouse = 1; -#else - fprintf(stderr, "gpm support was not compiled\n"); - exit(0); -#endif - removeArgs(argcp, &argv[i], 1); - } else - if (!strcmp(argv[i], "--")) { - removeArgs(argcp, &argv[i], 1); - break; - } else - i++; - } - - gettimeofday(&StartTime, 0); - atexit(Cleanup); - - signal(SIGSEGV, CrashHandler); - signal(SIGINT, CrashHandler); - signal(SIGTERM, CrashHandler); - - if(nomouse == 0) - InitializeMouse(); - if(nokeyboard == 0) - InitializeVT(usestdin); -} - -void glutInitDisplayMode (unsigned int mode) -{ - DisplayMode = mode; -} - -void glutInitWindowPosition (int x, int y) -{ -} - -void glutInitWindowSize (int width, int height) -{ - InitialWidthHint = width; - InitialHeightHint = height; -} - -/* --------- Mouse Rendering ------------*/ -#include "cursors.h" -static int LastMouseX; -static int LastMouseY; -static unsigned char *MouseBuffer; - -static void EraseCursor(void) -{ - int off = LastMouseY * FixedInfo.line_length - + LastMouseX * VarInfo.bits_per_pixel / 8; - int stride = CURSOR_WIDTH * VarInfo.bits_per_pixel / 8; - int i; - - unsigned char *src = MouseBuffer; - - for(i = 0; i<CURSOR_HEIGHT; i++) { - memcpy(BackBuffer + off, src, stride); - src += stride; - off += FixedInfo.line_length; - } -} - -static void SaveCursor(int x, int y) -{ - if(x < 0) - LastMouseX = 0; - else - if(x > (int)VarInfo.xres - CURSOR_WIDTH) - LastMouseX = VarInfo.xres - CURSOR_WIDTH; - else - LastMouseX = x; - - if(y < 0) - LastMouseY = 0; - else - if(y > (int)VarInfo.yres - CURSOR_HEIGHT) - LastMouseY = VarInfo.yres - CURSOR_HEIGHT; - else - LastMouseY = y; - - int off = LastMouseY * FixedInfo.line_length - + LastMouseX * VarInfo.bits_per_pixel / 8; - int stride = CURSOR_WIDTH * VarInfo.bits_per_pixel / 8; - int i; - unsigned char *src = MouseBuffer; - for(i = 0; i<CURSOR_HEIGHT; i++) { - memcpy(src, BackBuffer + off, stride); - src += stride; - off += FixedInfo.line_length; - } -} - -static void DrawCursor(void) -{ - if(CurrentCursor < 0 || CurrentCursor >= NUM_CURSORS) - return; - - int px = MouseX - CursorsXOffset[CurrentCursor]; - int py = MouseY - CursorsYOffset[CurrentCursor]; - - SaveCursor(px, py); - - int xoff = 0; - if(px < 0) - xoff = -px; - - int xlen = CURSOR_WIDTH; - if(px + CURSOR_WIDTH > VarInfo.xres) - xlen = VarInfo.xres - px; - - int yoff = 0; - if(py < 0) - yoff = -py; - - int ylen = CURSOR_HEIGHT; - if(py + CURSOR_HEIGHT > VarInfo.yres) - ylen = VarInfo.yres - py; - - int bypp = VarInfo.bits_per_pixel / 8; - - unsigned char *c = BackBuffer + FixedInfo.line_length * (py + yoff) - + (px + xoff) * bypp; - - unsigned char *d = Cursors[CurrentCursor] + (CURSOR_WIDTH * yoff + xoff)*4; - int i, j; - - int dstride = (CURSOR_WIDTH - xlen + xoff) * 4; - int cstride = FixedInfo.line_length - bypp * (xlen - xoff); - - switch(bypp) { - case 1: /* no support for 8bpp mouse yet */ - break; - case 2: - { - uint16_t *e = (void*)c; - cstride /= 2; - for(i = yoff; i < ylen; i++) { - for(j = xoff; j < xlen; j++) { - e[0] = ((((d[0] + (((int)(((e[0] >> 8) & 0xf8) - | ((c[0] >> 11) & 0x7)) * d[3]) >> 8)) & 0xf8) << 8) - | (((d[1] + (((int)(((e[0] >> 3) & 0xfc) - | ((e[0] >> 5) & 0x3)) * d[3]) >> 8)) & 0xfc) << 3) - | ((d[2] + (((int)(((e[0] << 3) & 0xf8) - | (e[0] & 0x7)) * d[3]) >> 8)) >> 3)); - - e++; - d+=4; - } - d += dstride; - e += cstride; - } - } - break; - case 3: - case 4: - for(i = yoff; i < ylen; i++) { - for(j = xoff; j < xlen; j++) { - c[0] = d[0] + (((int)c[0] * d[3]) >> 8); - c[1] = d[1] + (((int)c[1] * d[3]) >> 8); - c[2] = d[2] + (((int)c[2] * d[3]) >> 8); - - c+=bypp; - d+=4; - } - d += dstride; - c += cstride; - } break; - } -} - -#define MIN(x, y) x < y ? x : y -static void SwapCursor(void) -{ - int px = MouseX - CursorsXOffset[CurrentCursor]; - int py = MouseY - CursorsYOffset[CurrentCursor]; - - int minx = MIN(px, LastMouseX); - int sizex = abs(px - LastMouseX); - - int miny = MIN(py, LastMouseY); - int sizey = abs(py - LastMouseY); - - DrawCursor(); - /* now update the portion of the screen that has changed */ - - if(DisplayMode & GLUT_DOUBLE && (sizex || sizey)) { - if(minx < 0) - minx = 0; - if(miny < 0) - miny = 0; - - if(minx + sizex > VarInfo.xres) - sizex = VarInfo.xres - minx; - if(miny + sizey > VarInfo.yres) - sizey = VarInfo.yres - miny; - int off = FixedInfo.line_length * miny - + minx * VarInfo.bits_per_pixel / 8; - int stride = (sizex + CURSOR_WIDTH) * VarInfo.bits_per_pixel / 8; - int i; - for(i = 0; i< sizey + CURSOR_HEIGHT; i++) { - memcpy(FrameBuffer+off, BackBuffer+off, stride); - off += FixedInfo.line_length; - } - } -} - -/* --------- Menu Rendering ------------*/ -static double MenuProjection[16]; -static double MenuModelview[16]; - -static void InitMenuMatrices(void) -{ - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluOrtho2D(0.0,VarInfo.xres,VarInfo.yres,0.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glViewport(0,0,VarInfo.xres,VarInfo.yres); - glGetDoublev(GL_PROJECTION_MATRIX, MenuProjection); - glGetDoublev(GL_MODELVIEW_MATRIX, MenuModelview); -} - -static int DrawMenu(int menu, int x, int *y) -{ - int i; - int ret = 1; - for(i=0; i < Menus[menu].NumItems; i++) { - char *s = Menus[menu].Items[i].name; - int a =0; - if(MouseY >= *y && MouseY < *y + MENU_FONT_HEIGHT && - MouseX >= x && MouseX < x + Menus[menu].width) { - a = 1; - SelectedMenu = menu; - ret = 0; - Menus[menu].selected = i; - glColor3f(1,0,0); - } else - glColor3f(0,0,1); - - *y += MENU_FONT_HEIGHT; - glRasterPos2i(x, *y); - for(; *s; s++) - glutBitmapCharacter(MENU_FONT, *s); - - if(Menus[menu].selected == i) - if(Menus[menu].Items[i].submenu) - if(DrawMenu(Menus[menu].Items[i].submenu, x - + SUBMENU_OFFSET, y)) { - if(!a) - Menus[menu].selected = -1; - } else - ret = 0; - } - return ret; -} - -static void DrawMenus(void) -{ - /* save old settings */ - glPushAttrib(-1); - - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - glLoadMatrixd(MenuModelview); - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadMatrixd(MenuProjection); - - glDisable(GL_DEPTH_TEST); - glDisable(GL_ALPHA_TEST); - glDisable(GL_LIGHTING); - glDisable(GL_FOG); - glDisable(GL_TEXTURE_2D); - // glEnable(GL_LOGIC_OP); - //glEnable(GL_COLOR_LOGIC_OP); - // glLogicOp(GL_XOR); - - int x = Menus[ActiveMenu].x; - int y = Menus[ActiveMenu].y; - - if(DrawMenu(ActiveMenu, x, &y)) - Menus[ActiveMenu].selected = -1; - - /* restore settings */ - - glPopMatrix(); - glMatrixMode(GL_MODELVIEW); - glPopMatrix(); - - glPopAttrib(); -} - -/* --------- Event Processing ------------*/ -#define MODIFIER(mod) \ - KeyboardModifiers = release ? KeyboardModifiers & ~mod \ - : KeyboardModifiers | mod; - -#define READKEY read(ConsoleFD, &code, 1) - -static void LedModifier(int led, int release) -{ - static int releaseflag = K_CAPS | K_NUM; - if(release) - releaseflag |= led; - else - if(releaseflag & led) { - KeyboardLedState ^= led; - releaseflag &= ~led; - } - ioctl(ConsoleFD, KDSKBLED, KeyboardLedState); - ioctl(ConsoleFD, KDSETLED, 0x80); -} - -static int ReadKey(void) -{ - int x; - unsigned char code; - int specialkey = 0; - if(READKEY == 0) - return 0; - - if(code == 0) - return 0; - - /* stdin input escape code based */ - if(ConsoleFD == 0) { - KeyboardModifiers = 0; - altset: - if(code == 27 && READKEY == 1) { - switch(code) { - case 79: /* function key */ - READKEY; - if(code == 50) { - READKEY; - shiftfunc: - KeyboardModifiers |= GLUT_ACTIVE_SHIFT; - specialkey = GLUT_KEY_F1 + code - 53; - READKEY; - } else { - READKEY; - specialkey = GLUT_KEY_F1 + code - 80; - } - break; - case 91: - READKEY; - switch(code) { - case 68: - specialkey = GLUT_KEY_LEFT; break; - case 65: - specialkey = GLUT_KEY_UP; break; - case 67: - specialkey = GLUT_KEY_RIGHT; break; - case 66: - specialkey = GLUT_KEY_DOWN; break; - case 53: - specialkey = GLUT_KEY_PAGE_UP; READKEY; break; - case 54: - specialkey = GLUT_KEY_PAGE_DOWN; READKEY; break; - case 49: - specialkey = GLUT_KEY_HOME; READKEY; break; - case 52: - specialkey = GLUT_KEY_END; READKEY; break; - case 50: - READKEY; - if(code != 126) - goto shiftfunc; - specialkey = GLUT_KEY_INSERT; - break; - case 51: - code = '\b'; goto stdkey; - case 91: - READKEY; - specialkey = GLUT_KEY_F1 + code - 65; - break; - default: - return 0; - } - break; - default: - KeyboardModifiers |= GLUT_ACTIVE_ALT; - goto altset; - } - } - stdkey: - if(specialkey) { - if(SpecialFunc) - SpecialFunc(specialkey, MouseX, MouseY); - } else { - if(code >= 1 && code <= 26) { - KeyboardModifiers |= GLUT_ACTIVE_CTRL; - code += 'a' - 1; - } - if((code >= 43 && code <= 34) || (code == 60) - || (code >= 62 && code <= 90) || (code == 94) - || (code == 95) || (code >= 123 && code <= 126)) - KeyboardModifiers |= GLUT_ACTIVE_SHIFT; - - if(KeyboardFunc) - KeyboardFunc(code, MouseX, MouseY); - } - return 1; - } - - /* linux kbd reading */ - struct kbentry entry; - entry.kb_table = 0; - if(KeyboardModifiers & GLUT_ACTIVE_SHIFT) - entry.kb_table |= K_SHIFTTAB; - - int release = code & 0x80; - code &= 0x7F; - - entry.kb_index = code; - - if (ioctl(ConsoleFD, KDGKBENT, &entry) < 0) { - sprintf(exiterror, "ioctl(KDGKBENT) failed.\n"); - exit(0); - } - - int labelval = entry.kb_value; - - switch(labelval) { - case K_SHIFT: - case K_SHIFTL: - MODIFIER(GLUT_ACTIVE_SHIFT); - return 0; - case K_CTRL: - MODIFIER(GLUT_ACTIVE_CTRL); - return 0; - case K_ALT: - case K_ALTGR: - MODIFIER(GLUT_ACTIVE_ALT); - return 0; - } - - if(!release && labelval >= K_F1 && labelval <= K_F12) - if(KeyboardModifiers & GLUT_ACTIVE_ALT) { - /* VT switch, we must do it */ - if(ioctl(ConsoleFD, VT_ACTIVATE, labelval - K_F1 + 1) < 0) - sprintf(exiterror, "Error switching console\n"); - return 0; - } - - switch(labelval) { - case K_CAPS: - LedModifier(LED_CAP, release); - return 0; - case K_NUM: - LedModifier(LED_NUM, release); - return 0; - case K_HOLD: /* scroll lock suspends glut */ - LedModifier(LED_SCR, release); - while(KeyboardLedState & LED_SCR) { - usleep(10000); - ReadKey(); - } - return 0; - } - - /* we could queue keypresses here */ - if(KeyboardLedState & LED_SCR) - return 0; - - if(release) - return 0; - - if(labelval >= K_F1 && labelval <= K_F12) - specialkey = GLUT_KEY_F1 + labelval - K_F1; - else - switch(labelval) { - case K_LEFT: - specialkey = GLUT_KEY_LEFT; break; - case K_UP: - specialkey = GLUT_KEY_UP; break; - case K_RIGHT: - specialkey = GLUT_KEY_RIGHT; break; - case K_DOWN: - specialkey = GLUT_KEY_DOWN; break; - case K_PGUP: - specialkey = GLUT_KEY_PAGE_UP; break; - case K_PGDN: - specialkey = GLUT_KEY_PAGE_DOWN; break; - case K_FIND: - specialkey = GLUT_KEY_HOME; break; - case K_SELECT: - specialkey = GLUT_KEY_END; break; - case K_INSERT: - specialkey = GLUT_KEY_INSERT; break; - case K_REMOVE: - labelval = '\b'; break; - case K_ENTER: - labelval = '\n'; break; - } - - if(specialkey) { - if(SpecialFunc) - SpecialFunc(specialkey, MouseX, MouseY); - } else - if(KeyboardFunc) { - char c = labelval; - if(KeyboardLedState & LED_CAP) { - if(c >= 'A' && c <= 'Z') - c += 'a' - 'A'; - else - if(c >= 'a' && c <= 'z') - c += 'A' - 'a'; - } - KeyboardFunc(c, MouseX, MouseY); - } - return 1; -} - -static void HandleMousePress(int button, int pressed) -{ - if(ActiveMenu && !pressed) { - if(MenuStatusFunc) - MenuStatusFunc(GLUT_MENU_NOT_IN_USE, MouseX, MouseY); - if(MenuStateFunc) - MenuStateFunc(GLUT_MENU_NOT_IN_USE); - if(SelectedMenu > 0) { - int selected = Menus[SelectedMenu].selected; - if(selected >= 0) - if(Menus[SelectedMenu].Items[selected].submenu == 0) - Menus[SelectedMenu].func(Menus[SelectedMenu].Items - [selected].value); - } - ActiveMenu = 0; - Redisplay = 1; - return; - } - - if(AttachedMenus[button] && pressed) { - ActiveMenu = AttachedMenus[button]; - if(MenuStatusFunc) - MenuStatusFunc(GLUT_MENU_IN_USE, MouseX, MouseY); - if(MenuStateFunc) - MenuStateFunc(GLUT_MENU_IN_USE); - Menus[ActiveMenu].x = MouseX - Menus[ActiveMenu].width/2; - Menus[ActiveMenu].y = MouseY - Menus[ActiveMenu].NumItems*MENU_FONT_HEIGHT/2; - Menus[ActiveMenu].selected = -1; - Redisplay = 1; - return; - } - - if(MouseFunc) - MouseFunc(button, pressed ? GLUT_DOWN : GLUT_UP, MouseX, MouseY); -} - -static int ReadMouse(void) -{ - int l, r, m; - static int ll, lm, lr; - signed char dx, dy; - -#ifdef HAVE_GPM - if(GpmMouse) { - Gpm_Event event; - struct pollfd pfd; - pfd.fd = gpm_fd; - pfd.events = POLLIN; - if(poll(&pfd, 1, 1) != 1) - return 0; - - if(Gpm_GetEvent(&event) != 1) - return 0; - - l = event.buttons & GPM_B_LEFT; - m = event.buttons & GPM_B_MIDDLE; - r = event.buttons & GPM_B_RIGHT; - - /* gpm is weird in that it gives a button number when the button - is released, with type set to GPM_UP, this is only a problem - if it is the last button released */ - - if(event.type & GPM_UP) - if(event.buttons == GPM_B_LEFT || event.buttons == GPM_B_MIDDLE || - event.buttons == GPM_B_RIGHT || event.buttons == GPM_B_FOURTH) - l = m = r = 0; - - dx = event.dx; - dy = event.dy; - } else -#endif - { - if(MouseFD == -1) - return 0; - - if(fcntl(MouseFD, F_SETFL, O_NONBLOCK) == -1) { - close(MouseFD); - MouseFD = -1; - return 0; - } - - char data[4]; - if(read(MouseFD, data, 4) != 4) - return 0; - - l = ((data[0] & 0x20) >> 3); - m = ((data[3] & 0x10) >> 3); - r = ((data[0] & 0x10) >> 4); - - dx = (((data[0] & 0x03) << 6) | (data[1] & 0x3F)); - dy = (((data[0] & 0x0C) << 4) | (data[2] & 0x3F)); - } - - MouseX += dx * MouseSpeed; - if(MouseX < 0) - MouseX = 0; - else - if(MouseX >= VarInfo.xres) - MouseX = VarInfo.xres - 1; - - MouseY += dy * MouseSpeed; - if(MouseY < 0) - MouseY = 0; - else - if(MouseY >= VarInfo.yres) - MouseY = VarInfo.yres - 1; - - if(l != ll) - HandleMousePress(GLUT_LEFT_BUTTON, l); - if(m != lm) - HandleMousePress(GLUT_MIDDLE_BUTTON, m); - if(r != lr) - HandleMousePress(GLUT_RIGHT_BUTTON, r); - - ll = l, lm = m, lr = r; - - if(dx || dy) { - if(l || m || r) { - if(MotionFunc) - MotionFunc(MouseX, MouseY); - } else - if(PassiveMotionFunc) - PassiveMotionFunc(MouseX, MouseY); - - EraseCursor(); - if(ActiveMenu) - Redisplay = 1; - else - SwapCursor(); - } - - return 1; -} - -static void RecieveEvents(void) -{ - while(ReadKey()); - - if(MouseEnabled) - while(ReadMouse()); -} - -static void ProcessTimers(void) -{ - if(GlutTimers && GlutTimers->time < glutGet(GLUT_ELAPSED_TIME)) { - struct GlutTimer *timer = GlutTimers; - timer->func(timer->value); - GlutTimers = timer->next; - free(timer); - } -} - -void glutMainLoop(void) -{ - if(ReshapeFunc) - ReshapeFunc(VarInfo.xres, VarInfo.yres); - - if(!DisplayFunc) { - sprintf(exiterror, "Fatal Error: No Display Function registered\n"); - exit(0); - } - - for(;;) { - ProcessTimers(); - - if(Active) - RecieveEvents(); - else - if(VisiblePoll) - TestVisible(); - - if(IdleFunc) - IdleFunc(); - - if(VisibleSwitch) { - VisibleSwitch = 0; - if(VisibilityFunc) - VisibilityFunc(Visible ? GLUT_VISIBLE : GLUT_NOT_VISIBLE); - } - - if(Visible && Redisplay) { - Redisplay = 0; - if(MouseEnabled) - EraseCursor(); - DisplayFunc(); - if(!(DisplayMode & GLUT_DOUBLE)) { - if(ActiveMenu) - DrawMenus(); - if(MouseEnabled) - DrawCursor(); - } - } - } -} - -/* ---------- Window Management ----------*/ -static void ParseFBModes(void) -{ - char buf[1024]; - struct fb_var_screeninfo vi = VarInfo; - - FILE *fbmodes = fopen(FBMODES, "r"); - - if(!fbmodes) { - sprintf(exiterror, "Warning: could not open " - FBMODES" using current mode\n"); - return; - } - - if(InitialWidthHint == 0 && InitialHeightHint == 0 - && RequiredWidth == 0) - return; /* use current mode */ - - while(fgets(buf, sizeof buf, fbmodes)) { - char *c; - int v; - - if(!(c = strstr(buf, "geometry"))) - continue; - v = sscanf(c, "geometry %d %d %d %d %d", &vi.xres, &vi.yres, - &vi.xres_virtual, &vi.yres_virtual, &vi.bits_per_pixel); - if(v != 5) - continue; - - /* now we have to decide what is best */ - if(RequiredWidth) { - if(RequiredWidth != vi.xres || RequiredHeight != vi.yres) - continue; - } else { - if(VarInfo.xres < vi.xres && VarInfo.xres < InitialWidthHint) - v++; - if(VarInfo.xres > vi.xres && vi.xres > InitialWidthHint) - v++; - - if(VarInfo.yres < vi.yres && VarInfo.yres < InitialHeightHint) - v++; - if(VarInfo.yres > vi.yres && vi.yres > InitialHeightHint) - v++; - - if(v < 7) - continue; - } - - fgets(buf, sizeof buf, fbmodes); - if(!(c = strstr(buf, "timings"))) - continue; - - v = sscanf(c, "timings %d %d %d %d %d %d %d", &vi.pixclock, - &vi.left_margin, &vi.right_margin, &vi.upper_margin, - &vi.lower_margin, &vi.hsync_len, &vi.vsync_len); - if(v != 7) - continue; - - VarInfo = vi; /* finally found a better mode */ - if(RequiredWidth) { - fclose(fbmodes); - return; - } - } - - fclose(fbmodes); - - if(RequiredWidth) { - sprintf(exiterror, "No mode (%dx%d) found in "FBMODES"\n", - RequiredWidth, RequiredHeight); - exit(0); - } -} - -int glutCreateWindow (const char *title) -{ - if(ConsoleFD == -1) { - int argc = 0; - char *argv[] = {NULL}; - glutInit(&argc, argv); - } - - if(Context) - return 0; - - char *fbdev = getenv("FRAMEBUFFER"); - if(fbdev) { -#ifdef MULTIHEAD - if(!sscanf(fbdev, "/dev/fb%d", &FramebufferIndex)) - if(!sscanf(fbdev, "/dev/fb/%d", &FramebufferIndex)) - sprintf(exiterror, "Could not determine Framebuffer index!\n"); -#endif - } else { - static char fb[128]; - FramebufferIndex = 0; - struct fb_con2fbmap confb; - int fd = open("/dev/fb0", O_RDWR); - confb.console = CurrentVT; - if(ioctl(fd, FBIOGET_CON2FBMAP, &confb) != -1) - FramebufferIndex = confb.framebuffer; - sprintf(fb, "/dev/fb%d", FramebufferIndex); - fbdev = fb; - close(fd); - } - - /* open the framebuffer device */ - FrameBufferFD = open(fbdev, O_RDWR); - if (FrameBufferFD < 0) { - sprintf(exiterror, "Error opening %s: %s\n", fbdev, strerror(errno)); - exit(0); - } - - /* Get the fixed screen info */ - if (ioctl(FrameBufferFD, FBIOGET_FSCREENINFO, &FixedInfo)) { - sprintf(exiterror, "error: ioctl(FBIOGET_FSCREENINFO) failed: %s\n", - strerror(errno)); - exit(0); - } - - /* get the variable screen info */ - if (ioctl(FrameBufferFD, FBIOGET_VSCREENINFO, &OrigVarInfo)) { - sprintf(exiterror, "error: ioctl(FBIOGET_VSCREENINFO) failed: %s\n", - strerror(errno)); - exit(0); - } - - /* operate on a copy */ - VarInfo = OrigVarInfo; - - /* set the depth, resolution, etc */ - ParseFBModes(); - - if(DisplayMode & GLUT_INDEX) - VarInfo.bits_per_pixel = 8; - else - if(VarInfo.bits_per_pixel == 8) - VarInfo.bits_per_pixel = 32; - - if (DesiredDepth) - VarInfo.bits_per_pixel = DesiredDepth; - - VarInfo.xoffset = 0; - VarInfo.yoffset = 0; - VarInfo.nonstd = 0; - VarInfo.vmode &= ~FB_VMODE_YWRAP; /* turn off scrolling */ - - /* set new variable screen info */ - if (ioctl(FrameBufferFD, FBIOPUT_VSCREENINFO, &VarInfo)) { - sprintf(exiterror, "ioctl(FBIOPUT_VSCREENINFO failed): %s\n", - strerror(errno)); - exit(0); - } - - /* reload the screen info to update offsets */ - if (ioctl(FrameBufferFD, FBIOGET_VSCREENINFO, &VarInfo)) { - sprintf(exiterror, "error: ioctl(FBIOGET_VSCREENINFO) failed: %s\n", - strerror(errno)); - exit(0); - } - - /* reload the fixed info to update color mode */ - if (ioctl(FrameBufferFD, FBIOGET_FSCREENINFO, &FixedInfo)) { - sprintf(exiterror, "error: ioctl(FBIOGET_FSCREENINFO) failed: %s\n", - strerror(errno)); - exit(0); - } - - if(DisplayMode & GLUT_INDEX) { - /* initialize colormap */ - if (FixedInfo.visual != FB_VISUAL_DIRECTCOLOR) { - static unsigned short red[256], green[256], blue[256]; - /* we're assuming 256 entries here */ - - ColorMap.start = 0; - ColorMap.len = 256; - ColorMap.red = red; - ColorMap.green = green; - ColorMap.blue = blue; - ColorMap.transp = NULL; - - if (ioctl(FrameBufferFD, FBIOGETCMAP, (void *) &ColorMap) < 0) - sprintf(exiterror, "ioctl(FBIOGETCMAP) failed!\n"); - - } else { - sprintf(exiterror, "error: Could not set 8 bit color mode\n"); - exit(0); - } - } - - /* mmap the framebuffer into our address space */ - FrameBuffer = mmap(0, FixedInfo.smem_len, PROT_READ | PROT_WRITE, - MAP_SHARED, FrameBufferFD, 0); - if (FrameBuffer == MAP_FAILED) { - sprintf(exiterror, "error: unable to mmap framebuffer: %s\n", - strerror(errno)); - exit(0); - } - - int attribs[9]; - int i; - - int mask = DisplayMode; - for(i=0; i<8 && mask; i++) { - if(mask & GLUT_DOUBLE) { - attribs[i] = GLFBDEV_DOUBLE_BUFFER; - mask &= ~GLUT_DOUBLE; - continue; - } - - if(mask & GLUT_INDEX) { - attribs[i] = GLFBDEV_COLOR_INDEX; - mask &= ~GLUT_INDEX; - continue; - } - - if(mask & GLUT_DEPTH) { - attribs[i] = GLFBDEV_DEPTH_SIZE; - attribs[++i] = DepthSize; - mask &= ~GLUT_DEPTH; - continue; - } - - if(mask & GLUT_STENCIL) { - attribs[i] = GLFBDEV_STENCIL_SIZE; - attribs[++i] = StencilSize; - mask &= ~GLUT_STENCIL; - continue; - } - - if(mask & GLUT_ACCUM) { - attribs[i] = GLFBDEV_ACCUM_SIZE; - attribs[++i] = AccumSize; - mask &= ~GLUT_ACCUM; - continue; - } - - if(mask & GLUT_ALPHA) - if(!(DisplayMode & GLUT_INDEX)) { - mask &= ~GLUT_ALPHA; - i--; - continue; - } - - sprintf(exiterror, "Invalid mode from glutInitDisplayMode\n"); - exit(0); - } - - attribs[i] = GLFBDEV_NONE; - - if(!(Visual = glFBDevCreateVisual( &FixedInfo, &VarInfo, attribs ))) { - sprintf(exiterror, "Failure to create Visual\n"); - exit(0); - } - - int size = VarInfo.xres_virtual * VarInfo.yres_virtual - * VarInfo.bits_per_pixel / 8; - if(DisplayMode & GLUT_DOUBLE) { - if(!(BackBuffer = malloc(size))) { - sprintf(exiterror, "Failed to allocate double buffer\n"); - exit(0); - } - } else - BackBuffer = FrameBuffer; - - if(!(Buffer = glFBDevCreateBuffer( &FixedInfo, &VarInfo, Visual, - FrameBuffer, BackBuffer, size))) { - sprintf(exiterror, "Failure to create Buffer\n"); - exit(0); - } - - if(!(Context = glFBDevCreateContext(Visual, NULL))) { - sprintf(exiterror, "Failure to create Context\n"); - exit(0); - } - - if(!glFBDevMakeCurrent( Context, Buffer, Buffer )) { - sprintf(exiterror, "Failure to Make Current\n"); - exit(0); - } - - Visible = 1; - VisibleSwitch = 1; - Redisplay = 1; - - /* set up mouse */ - if((MouseBuffer = malloc(CURSOR_WIDTH * CURSOR_HEIGHT - * VarInfo.bits_per_pixel / 8)) == NULL) { - sprintf(exiterror, "malloc failure\n"); - exit(0); - } - - MouseX = VarInfo.xres / 2; - MouseY = VarInfo.yres / 2; - - /* set up menus */ - InitMenuMatrices(); - return 1; -} - -int glutCreateSubWindow(int win, int x, int y, int width, int height) -{ - return 0; -} - -void glutSetWindow(int win) -{ -} - -int glutGetWindow(void) -{ - return 1; -} - -void glutDestroyWindow(int win) -{ -} - -void glutPostRedisplay(void) -{ - Redisplay = 1; -} - -void glutSwapBuffers(void) -{ - glFlush(); - - if(DisplayMode & GLUT_DOUBLE) { - if(ActiveMenu) - DrawMenus(); - if(MouseEnabled) - DrawCursor(); - glFBDevSwapBuffers(Buffer); - } -} - -void glutPositionWindow(int x, int y) -{ -} - -void glutReshapeWindow(int width, int height) -{ -} - -void glutFullScreen(void) -{ -} - -void glutPopWindow(void) -{ -} - -void glutPushWindow(void) -{ -} - -void glutShowWindow(void) -{ -} - -void glutHideWindow(void) -{ -} - -void glutIconifyWindow(void) -{ -} - -void glutSetWindowTitle(const char *name) -{ -} - -void glutSetIconTitle(const char *name) -{ -} - -void glutSetCursor(int cursor) -{ - if(cursor == GLUT_CURSOR_FULL_CROSSHAIR) - cursor = GLUT_CURSOR_CROSSHAIR; - CurrentCursor = cursor; - MouseEnabled = 1; - EraseCursor(); - SwapCursor(); -} - -/* --------- Overlays ------------*/ -void glutEstablishOverlay(void) -{ - exit(0); -} - -void glutUseLayer(GLenum layer) -{ -} - -void glutRemoveOverlay(void) -{ -} - -void glutPostOverlayRedisplay(void) -{ -} - -void glutShowOverlay(void) -{ -} - -void glutHideOverlay(void) -{ -} - -/* --------- Menus ------------*/ -int glutCreateMenu(void (*func)(int value)) -{ - MouseEnabled = 1; - CurrentMenu = NumMenus; - NumMenus++; - Menus = realloc(Menus, sizeof(*Menus) * NumMenus); - Menus[CurrentMenu].NumItems = 0; - Menus[CurrentMenu].Items = NULL; - Menus[CurrentMenu].func = func; - Menus[CurrentMenu].width = 0; - return CurrentMenu; -} - -void glutSetMenu(int menu) -{ - CurrentMenu = menu; -} - -int glutGetMenu(void) -{ - return CurrentMenu; -} - -void glutDestroyMenu(int menu) -{ - if(menu == CurrentMenu) - CurrentMenu = 0; -} - -static void NameMenuEntry(int entry, const char *name) -{ - int cm = CurrentMenu; - if(!(Menus[cm].Items[entry-1].name = realloc(Menus[cm].Items[entry-1].name, - strlen(name) + 1))) { - sprintf(exiterror, "realloc failed in NameMenuEntry\n"); - exit(0); - } - strcpy(Menus[cm].Items[entry-1].name, name); - if(strlen(name) * MENU_FONT_WIDTH > Menus[cm].width) - Menus[cm].width = strlen(name) * MENU_FONT_WIDTH; -} - -static int AddMenuItem(const char *name) -{ - int cm = CurrentMenu; - int item = Menus[cm].NumItems++; - if(!(Menus[cm].Items = realloc(Menus[cm].Items, - Menus[cm].NumItems * sizeof(*Menus[0].Items)))) { - sprintf(exiterror, "realloc failed in AddMenuItem\n"); - exit(0); - } - Menus[cm].Items[item].name = NULL; - NameMenuEntry(item+1, name); - return item; -} - -void glutAddMenuEntry(const char *name, int value) -{ - int item = AddMenuItem(name); - Menus[CurrentMenu].Items[item].value = value; - Menus[CurrentMenu].Items[item].submenu = 0; -} - -void glutAddSubMenu(const char *name, int menu) -{ - int item = AddMenuItem(name); - if(menu == CurrentMenu) { - sprintf(exiterror, "Recursive menus not supported\n"); - exit(0); - } - Menus[CurrentMenu].Items[item].submenu = menu; -} - -void glutChangeToMenuEntry(int entry, const char *name, int value) -{ - NameMenuEntry(entry, name); - Menus[CurrentMenu].Items[entry-1].value = value; - Menus[CurrentMenu].Items[entry-1].submenu = 0; -} - -void glutChangeToSubMenu(int entry, const char *name, int menu) -{ - NameMenuEntry(entry, name); - Menus[CurrentMenu].Items[entry-1].submenu = menu; -} - -void glutRemoveMenuItem(int entry) -{ - memmove(Menus[CurrentMenu].Items + entry - 1, - Menus[CurrentMenu].Items + entry, - sizeof(*Menus[0].Items) * (Menus[CurrentMenu].NumItems - entry)); - Menus[CurrentMenu].NumItems--; -} - -void glutAttachMenu(int button) -{ - AttachedMenus[button] = CurrentMenu; -} - -void glutDetachMenu(int button) -{ - AttachedMenus[button] = 0; -} - -/* --------- Callbacks ------------ */ -void glutDisplayFunc(void (*func)(void)) -{ - DisplayFunc = func; -} - -void glutOverlayDisplayFunc(void (*func)(void)) -{ -} - -void glutReshapeFunc(void (*func)(int width, int height)) -{ - ReshapeFunc = func; -} - -void glutKeyboardFunc(void (*func)(unsigned char key, int x, int y)) -{ - KeyboardFunc = func; -} - -void glutMouseFunc(void (*func)(int button, int state, int x, int y)) -{ - MouseEnabled = 1; - MouseFunc = func; -} - -void glutMotionFunc(void (*func)(int x, int y)) -{ - MouseEnabled = 1; - MotionFunc = func; -} - -void glutPassiveMotionFunc(void (*func)(int x, int y)) -{ - MouseEnabled = 1; - PassiveMotionFunc = func; -} - -void glutVisibilityFunc(void (*func)(int state)) -{ - VisibilityFunc = func; -} - -void glutEntryFunc(void (*func)(int state)) -{ -} - -void glutSpecialFunc(void (*func)(int key, int x, int y)) -{ - SpecialFunc = func; -} - -void glutSpaceballMotionFunc(void (*func)(int x, int y, int z)) -{ -} - -void glutSpaceballRotateFunc(void (*func)(int x, int y, int z)) -{ -} - -void glutButtonBoxFunc(void (*func)(int button, int state)) -{ -} - -void glutDialsFunc(void (*func)(int dial, int value)) -{ -} - -void glutTabletMotionFunc(void (*func)(int x, int y)) -{ -} - -void glutTabletButtonFunc(void (*func)(int button, int state, - int x, int y)) -{ -} - -void glutMenuStatusFunc(void (*func)(int status, int x, int y)) -{ - MenuStatusFunc = func; -} - -void glutMenuStateFunc(void (*func)(int status)) -{ - MenuStateFunc = func; -} - -void glutIdleFunc(void (*func)(void)) -{ - IdleFunc = func; -} - -void glutTimerFunc(unsigned int msecs, - void (*func)(int value), int value) -{ - struct GlutTimer *timer = malloc(sizeof *timer); - timer->time = glutGet(GLUT_ELAPSED_TIME) + msecs; - timer->func = func; - timer->value = value; - - struct GlutTimer **head = &GlutTimers; - while(*head && (*head)->time < timer->time) - head = &(*head)->next; - - timer->next = *head; - *head = timer; -} - -/* --------- Color Map ------------*/ -#define TOCMAP(x) (unsigned short)((x<0?0:x>1?1:x) * (GLfloat) (2<<16)) -#define FROMCMAP(x) (GLfloat)x / (GLfloat)(2<<16) - -void glutSetColor(int cell, GLfloat red, GLfloat green, GLfloat blue) -{ - if(cell >=0 && cell < 256) { - - ColorMap.red[cell] = TOCMAP(red); - ColorMap.green[cell] = TOCMAP(green); - ColorMap.blue[cell] = TOCMAP(blue); - - ColorMap.start = cell; - ColorMap.len = 1; - - if (ioctl(FrameBufferFD, FBIOPUTCMAP, (void *) &ColorMap) < 0) - fprintf(stderr, "ioctl(FBIOPUTCMAP) failed [%d]\n", cell); - } -} - -GLfloat glutGetColor(int cell, int component) -{ - if(!(DisplayMode & GLUT_INDEX)) - return -1.0; - - if(cell < 0 || cell > 256) - return -1.0; - - switch(component) { - case GLUT_RED: - return FROMCMAP(ColorMap.red[cell]); - case GLUT_GREEN: - return FROMCMAP(ColorMap.green[cell]); - case GLUT_BLUE: - return FROMCMAP(ColorMap.blue[cell]); - } - return -1.0; -} - -void glutCopyColormap(int win) -{ -} - -/* --------- State ------------*/ -void glutWarpPointer(int x, int y) -{ - if(x < 0) - x = 0; - if(x >= VarInfo.xres) - x = VarInfo.xres - 1; - MouseX = x; - - if(y < 0) - y = 0; - if(y >= VarInfo.yres) - y = VarInfo.yres - 1; - MouseY = y; - - EraseCursor(); - SwapCursor(); -} - -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; - } - } -} - -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 1; - 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; - } - return -1; -} - -int glutGetModifiers(void){ - return KeyboardModifiers; -} - -/* ------------- extensions ------------ */ -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; -} - -void glutReportErrors(void) -{ - GLenum error; - - while ((error = glGetError()) != GL_NO_ERROR) - fprintf(stderr, "GL error: %s", gluErrorString(error)); -} - -static struct { - const char *name; - const GLUTproc address; -} glut_functions[] = { - { "glutInit", (const GLUTproc) glutInit }, - { "glutInitDisplayMode", (const GLUTproc) glutInitDisplayMode }, - { "glutInitWindowPosition", (const GLUTproc) glutInitWindowPosition }, - { "glutInitWindowSize", (const GLUTproc) glutInitWindowSize }, - { "glutMainLoop", (const GLUTproc) glutMainLoop }, - { "glutCreateWindow", (const GLUTproc) glutCreateWindow }, - { "glutCreateSubWindow", (const GLUTproc) glutCreateSubWindow }, - { "glutDestroyWindow", (const GLUTproc) glutDestroyWindow }, - { "glutPostRedisplay", (const GLUTproc) glutPostRedisplay }, - { "glutSwapBuffers", (const GLUTproc) glutSwapBuffers }, - { "glutGetWindow", (const GLUTproc) glutGetWindow }, - { "glutSetWindow", (const GLUTproc) glutSetWindow }, - { "glutSetWindowTitle", (const GLUTproc) glutSetWindowTitle }, - { "glutSetIconTitle", (const GLUTproc) glutSetIconTitle }, - { "glutPositionWindow", (const GLUTproc) glutPositionWindow }, - { "glutReshapeWindow", (const GLUTproc) glutReshapeWindow }, - { "glutPopWindow", (const GLUTproc) glutPopWindow }, - { "glutPushWindow", (const GLUTproc) glutPushWindow }, - { "glutIconifyWindow", (const GLUTproc) glutIconifyWindow }, - { "glutShowWindow", (const GLUTproc) glutShowWindow }, - { "glutHideWindow", (const GLUTproc) glutHideWindow }, - { "glutFullScreen", (const GLUTproc) glutFullScreen }, - { "glutSetCursor", (const GLUTproc) glutSetCursor }, - { "glutWarpPointer", (const GLUTproc) glutWarpPointer }, - { "glutEstablishOverlay", (const GLUTproc) glutEstablishOverlay }, - { "glutRemoveOverlay", (const GLUTproc) glutRemoveOverlay }, - { "glutUseLayer", (const GLUTproc) glutUseLayer }, - { "glutPostOverlayRedisplay", (const GLUTproc) glutPostOverlayRedisplay }, - { "glutShowOverlay", (const GLUTproc) glutShowOverlay }, - { "glutHideOverlay", (const GLUTproc) glutHideOverlay }, - { "glutCreateMenu", (const GLUTproc) glutCreateMenu }, - { "glutDestroyMenu", (const GLUTproc) glutDestroyMenu }, - { "glutGetMenu", (const GLUTproc) glutGetMenu }, - { "glutSetMenu", (const GLUTproc) glutSetMenu }, - { "glutAddMenuEntry", (const GLUTproc) glutAddMenuEntry }, - { "glutAddSubMenu", (const GLUTproc) glutAddSubMenu }, - { "glutChangeToMenuEntry", (const GLUTproc) glutChangeToMenuEntry }, - { "glutChangeToSubMenu", (const GLUTproc) glutChangeToSubMenu }, - { "glutRemoveMenuItem", (const GLUTproc) glutRemoveMenuItem }, - { "glutAttachMenu", (const GLUTproc) glutAttachMenu }, - { "glutDetachMenu", (const GLUTproc) glutDetachMenu }, - { "glutDisplayFunc", (const GLUTproc) glutDisplayFunc }, - { "glutReshapeFunc", (const GLUTproc) glutReshapeFunc }, - { "glutKeyboardFunc", (const GLUTproc) glutKeyboardFunc }, - { "glutMouseFunc", (const GLUTproc) glutMouseFunc }, - { "glutMotionFunc", (const GLUTproc) glutMotionFunc }, - { "glutPassiveMotionFunc", (const GLUTproc) glutPassiveMotionFunc }, - { "glutEntryFunc", (const GLUTproc) glutEntryFunc }, - { "glutVisibilityFunc", (const GLUTproc) glutVisibilityFunc }, - { "glutIdleFunc", (const GLUTproc) glutIdleFunc }, - { "glutTimerFunc", (const GLUTproc) glutTimerFunc }, - { "glutMenuStateFunc", (const GLUTproc) glutMenuStateFunc }, - { "glutSpecialFunc", (const GLUTproc) glutSpecialFunc }, - { "glutSpaceballRotateFunc", (const GLUTproc) glutSpaceballRotateFunc }, - { "glutButtonBoxFunc", (const GLUTproc) glutButtonBoxFunc }, - { "glutDialsFunc", (const GLUTproc) glutDialsFunc }, - { "glutTabletMotionFunc", (const GLUTproc) glutTabletMotionFunc }, - { "glutTabletButtonFunc", (const GLUTproc) glutTabletButtonFunc }, - { "glutMenuStatusFunc", (const GLUTproc) glutMenuStatusFunc }, - { "glutOverlayDisplayFunc", (const GLUTproc) glutOverlayDisplayFunc }, - { "glutSetColor", (const GLUTproc) glutSetColor }, - { "glutGetColor", (const GLUTproc) glutGetColor }, - { "glutCopyColormap", (const GLUTproc) glutCopyColormap }, - { "glutGet", (const GLUTproc) glutGet }, - { "glutDeviceGet", (const GLUTproc) glutDeviceGet }, - { "glutExtensionSupported", (const GLUTproc) glutExtensionSupported }, - { "glutGetModifiers", (const GLUTproc) glutGetModifiers }, - { "glutLayerGet", (const GLUTproc) glutLayerGet }, - { "glutGetProcAddress", (const GLUTproc) glutGetProcAddress }, - { "glutBitmapCharacter", (const GLUTproc) glutBitmapCharacter }, - { "glutBitmapWidth", (const GLUTproc) glutBitmapWidth }, - { "glutStrokeCharacter", (const GLUTproc) glutStrokeCharacter }, - { "glutStrokeWidth", (const GLUTproc) glutStrokeWidth }, - { "glutBitmapLength", (const GLUTproc) glutBitmapLength }, - { "glutStrokeLength", (const GLUTproc) glutStrokeLength }, - { "glutWireSphere", (const GLUTproc) glutWireSphere }, - { "glutSolidSphere", (const GLUTproc) glutSolidSphere }, - { "glutWireCone", (const GLUTproc) glutWireCone }, - { "glutSolidCone", (const GLUTproc) glutSolidCone }, - { "glutWireCube", (const GLUTproc) glutWireCube }, - { "glutSolidCube", (const GLUTproc) glutSolidCube }, - { "glutWireTorus", (const GLUTproc) glutWireTorus }, - { "glutSolidTorus", (const GLUTproc) glutSolidTorus }, - { "glutWireDodecahedron", (const GLUTproc) glutWireDodecahedron }, - { "glutSolidDodecahedron", (const GLUTproc) glutSolidDodecahedron }, - { "glutWireTeapot", (const GLUTproc) glutWireTeapot }, - { "glutSolidTeapot", (const GLUTproc) glutSolidTeapot }, - { "glutWireOctahedron", (const GLUTproc) glutWireOctahedron }, - { "glutSolidOctahedron", (const GLUTproc) glutSolidOctahedron }, - { "glutWireTetrahedron", (const GLUTproc) glutWireTetrahedron }, - { "glutSolidTetrahedron", (const GLUTproc) glutSolidTetrahedron }, - { "glutWireIcosahedron", (const GLUTproc) glutWireIcosahedron }, - { "glutSolidIcosahedron", (const GLUTproc) glutSolidIcosahedron }, - { "glutReportErrors", (const GLUTproc) glutReportErrors }, - { NULL, NULL } -}; - -GLUTproc glutGetProcAddress(const char *procName) -{ - /* Try GLUT functions first */ - int i; - for (i = 0; glut_functions[i].name; i++) { - if (strcmp(glut_functions[i].name, procName) == 0) - return glut_functions[i].address; - } - - /* Try core GL functions */ - return (GLUTproc) glFBDevGetProcAddress(procName); -} |