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/*
* 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--;
}
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