| /* |
| * DOS/DJGPP Mesa Utility Toolkit |
| * Version: 1.0 |
| * |
| * Copyright (C) 2005 Daniel Borca All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * DANIEL BORCA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| #include <string.h> |
| |
| #include <GL/glut.h> |
| #include "GL/dmesa.h" |
| |
| #include "PC_HW/pc_hw.h" |
| #include "internal.h" |
| |
| |
| static int looping = 0; |
| |
| |
| #define DO_REDISPLAY(w, ccin, ccout) \ |
| do { \ |
| if (w->redisplay && w->display) { \ |
| int rv = GL_TRUE; \ |
| \ |
| idle = GL_FALSE; \ |
| w->redisplay = GL_FALSE; \ |
| \ |
| /* test IN condition (whether we need to `MakeCurrent') */\ |
| if (ccin) { \ |
| rv = DMesaMakeCurrent(w->context, w->buffer); \ |
| } \ |
| \ |
| /* do the display only if `MakeCurrent' didn't failed */ \ |
| if (rv) { \ |
| if (w->show_mouse && !(_glut_default.mode & GLUT_DOUBLE)) {\ |
| /* XXX scare mouse */ \ |
| w->display(); \ |
| /* XXX unscare mouse */ \ |
| } else { \ |
| w->display(); \ |
| } \ |
| \ |
| /* update OUT condition */ \ |
| ccout; \ |
| } \ |
| } \ |
| } while (0) |
| |
| |
| void APIENTRY |
| glutMainLoopEvent (void) |
| { |
| int i, n; |
| GLUTwindow *w; |
| GLboolean idle; |
| static int old_mouse_x = 0; |
| static int old_mouse_y = 0; |
| static int old_mouse_b = 0; |
| |
| static GLboolean virgin = GL_TRUE; |
| if (virgin) { |
| pc_install_keyb(); |
| _glut_mouse_init(); |
| |
| for (i = 0; i < MAX_WINDOWS; i++) { |
| w = _glut_windows[i]; |
| if (w != NULL) { |
| glutSetWindow(w->num); |
| glutPostRedisplay(); |
| if (w->reshape) { |
| w->reshape(w->width, w->height); |
| } |
| if (w->visibility) { |
| w->visibility(GLUT_VISIBLE); |
| } |
| } |
| } |
| virgin = GL_FALSE; |
| } |
| |
| idle = GL_TRUE; |
| |
| n = 0; |
| for (i = 0; i < MAX_WINDOWS; i++) { |
| w = _glut_windows[i]; |
| if ((w != NULL) && (w != _glut_current)) { |
| /* 1) redisplay `w' |
| * 2) `MakeCurrent' always |
| * 3) update number of non-default windows |
| */ |
| DO_REDISPLAY(w, GL_TRUE, n++); |
| } |
| } |
| /* 1) redisplay `_glut_current' |
| * 2) `MakeCurrent' only if we previously did non-default windows |
| * 3) don't update anything |
| */ |
| DO_REDISPLAY(_glut_current, n, n); |
| |
| if (_glut_mouse) { |
| int mouse_x; |
| int mouse_y; |
| int mouse_z; |
| int mouse_b; |
| |
| /* query mouse */ |
| mouse_b = pc_query_mouse(&mouse_x, &mouse_y, &mouse_z); |
| |
| /* relative to window coordinates */ |
| _glut_mouse_x = mouse_x - _glut_current->xpos; |
| _glut_mouse_y = mouse_y - _glut_current->ypos; |
| |
| /* mouse was moved? */ |
| if ((mouse_x != old_mouse_x) || (mouse_y != old_mouse_y)) { |
| idle = GL_FALSE; |
| old_mouse_x = mouse_x; |
| old_mouse_y = mouse_y; |
| |
| if (mouse_b) { |
| /* any button pressed */ |
| if (_glut_current->motion) { |
| _glut_current->motion(_glut_mouse_x, _glut_mouse_y); |
| } |
| } else { |
| /* no button pressed */ |
| if (_glut_current->passive) { |
| _glut_current->passive(_glut_mouse_x, _glut_mouse_y); |
| } |
| } |
| } |
| |
| /* button state changed? */ |
| if (mouse_b != old_mouse_b) { |
| GLUTmouseCB mouse_func; |
| |
| if ((mouse_func = _glut_current->mouse)) { |
| if ((old_mouse_b & 1) && !(mouse_b & 1)) |
| mouse_func(GLUT_LEFT_BUTTON, GLUT_UP, _glut_mouse_x, _glut_mouse_y); |
| else if (!(old_mouse_b & 1) && (mouse_b & 1)) |
| mouse_func(GLUT_LEFT_BUTTON, GLUT_DOWN, _glut_mouse_x, _glut_mouse_y); |
| |
| if ((old_mouse_b & 2) && !(mouse_b & 2)) |
| mouse_func(GLUT_RIGHT_BUTTON, GLUT_UP, _glut_mouse_x, _glut_mouse_y); |
| else if (!(old_mouse_b & 2) && (mouse_b & 2)) |
| mouse_func(GLUT_RIGHT_BUTTON, GLUT_DOWN, _glut_mouse_x, _glut_mouse_y); |
| |
| if ((old_mouse_b & 4) && !(mouse_b & 4)) |
| mouse_func(GLUT_MIDDLE_BUTTON, GLUT_UP, _glut_mouse_x, _glut_mouse_y); |
| else if (!(old_mouse_b & 3) && (mouse_b & 4)) |
| mouse_func(GLUT_MIDDLE_BUTTON, GLUT_DOWN, _glut_mouse_x, _glut_mouse_y); |
| } |
| |
| idle = GL_FALSE; |
| old_mouse_b = mouse_b; |
| } |
| } |
| |
| if (pc_keypressed()) { |
| int key; |
| int glut_key; |
| |
| idle = GL_FALSE; |
| key = pc_readkey(); |
| |
| switch (key>>16) { |
| case KEY_F1: glut_key = GLUT_KEY_F1; goto special; |
| case KEY_F2: glut_key = GLUT_KEY_F2; goto special; |
| case KEY_F3: glut_key = GLUT_KEY_F3; goto special; |
| case KEY_F4: glut_key = GLUT_KEY_F4; goto special; |
| case KEY_F5: glut_key = GLUT_KEY_F5; goto special; |
| case KEY_F6: glut_key = GLUT_KEY_F6; goto special; |
| case KEY_F7: glut_key = GLUT_KEY_F7; goto special; |
| case KEY_F8: glut_key = GLUT_KEY_F8; goto special; |
| case KEY_F9: glut_key = GLUT_KEY_F9; goto special; |
| case KEY_F10: glut_key = GLUT_KEY_F10; goto special; |
| case KEY_F11: glut_key = GLUT_KEY_F11; goto special; |
| case KEY_F12: glut_key = GLUT_KEY_F12; goto special; |
| case KEY_LEFT: glut_key = GLUT_KEY_LEFT; goto special; |
| case KEY_UP: glut_key = GLUT_KEY_UP; goto special; |
| case KEY_RIGHT: glut_key = GLUT_KEY_RIGHT; goto special; |
| case KEY_DOWN: glut_key = GLUT_KEY_DOWN; goto special; |
| case KEY_PGUP: glut_key = GLUT_KEY_PAGE_UP; goto special; |
| case KEY_PGDN: glut_key = GLUT_KEY_PAGE_DOWN; goto special; |
| case KEY_HOME: glut_key = GLUT_KEY_HOME; goto special; |
| case KEY_END: glut_key = GLUT_KEY_END; goto special; |
| case KEY_INSERT: glut_key = GLUT_KEY_INSERT; goto special; |
| special: |
| if (_glut_current->special) { |
| _glut_current->special(glut_key, _glut_mouse_x, _glut_mouse_y); |
| } |
| break; |
| default: |
| if (_glut_current->keyboard) { |
| _glut_current->keyboard(key & 0xFF, _glut_mouse_x, _glut_mouse_y); |
| } |
| } |
| } |
| |
| if (idle && _glut_idle_func) |
| _glut_idle_func(); |
| |
| for (i = 0; i < MAX_TIMER_CB; i++) { |
| int time = glutGet(GLUT_ELAPSED_TIME); |
| GLUTSShotCB *cb = &_glut_timer_cb[i]; |
| if (cb->func && (time >= cb->time)) { |
| cb->func(cb->value); |
| cb->func = NULL; |
| } |
| } |
| } |
| |
| |
| void APIENTRY |
| glutMainLoop (void) |
| { |
| looping++; |
| while (looping) { |
| glutMainLoopEvent(); |
| } |
| } |
| |
| |
| void APIENTRY |
| glutLeaveMainLoop (void) |
| { |
| looping--; |
| } |
