src/glut/dos/window.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  4.1
   4  * Copyright (C) 1995-1998  Brian Paul
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /*
  22  * DOS/DJGPP glut driver v1.3 for Mesa 5.0
  23  *
  24  *  Copyright (C) 2002 - Borca Daniel
  25  *  Email : dborca@yahoo.com
  26  *  Web   : http://www.geocities.com/dborca
  27  */
  28
  29
  30 #include "GL/glut.h"
  31 #include "GL/dmesa.h"
  32 #include "internal.h"
  33
  34
  35
  36 static int window;
  37
  38 static DMesaVisual  visual  = NULL;
  39 static DMesaContext context = NULL;
  40 static DMesaBuffer  buffer[MAX_WINDOWS];
  41
  42
  43
  44 static void clean (void)
  45 {
  46  int i;
  47
  48  for (i=0; i<MAX_WINDOWS; i++) {
  49      glutDestroyWindow(i+1);
  50  }
  51  if (context) DMesaDestroyContext(context);
  52  if (visual)  DMesaDestroyVisual(visual);
  53
  54  pc_close_stdout();
  55  pc_close_stderr();
  56 }
  57
  58
  59
  60 int APIENTRY glutCreateWindow (const char *title)
  61 {
  62  int i;
  63
  64  if (!visual) {
  65     if ((visual=DMesaCreateVisual(g_xpos + g_width, g_ypos + g_height, g_bpp, g_refresh,
  66                                   g_display_mode & GLUT_DOUBLE,
  67                                   !(g_display_mode & GLUT_INDEX),
  68                                   g_display_mode & GLUT_ALPHA,
  69                                   g_display_mode & GLUT_DEPTH  ?DEPTH_SIZE  :0,
  70                                   g_display_mode & GLUT_STENCIL?STENCIL_SIZE:0,
  71                                   g_display_mode & GLUT_ACCUM  ?ACCUM_SIZE  :0))==NULL) {
  72        return 0;
  73     }
  74
  75     if ((context=DMesaCreateContext(visual, NULL))==NULL) {
  76        DMesaDestroyVisual(visual);
  77        return 0;
  78     }
  79
  80     pc_open_stdout();
  81     pc_open_stderr();
  82     pc_atexit(clean);
  83  }
  84
  85  for (i=0; i<MAX_WINDOWS; i++) {
  86      if (!buffer[i]) {
  87         DMesaBuffer b;
  88
  89         if ((b=DMesaCreateBuffer(visual, g_xpos, g_ypos, g_width, g_height))==NULL) {
  90            return 0;
  91         }
  92         if (!DMesaMakeCurrent(context, b)) {
  93            DMesaDestroyBuffer(b);
  94            return 0;
  95         }
  96         if (g_mouse) {
  97            pc_mouse_area(g_xpos, g_ypos, g_xpos + g_width - 1, g_ypos + g_height - 1);
  98         }
  99
 100         buffer[window = i] = b;
 101         return i+1;
 102      }
 103  }
 104
 105  return 0;
 106 }
 107
 108
 109 int APIENTRY glutCreateSubWindow (int win, int x, int y, int width, int height)
 110 {
 111  return GL_FALSE;
 112 }
 113
 114
 115 void APIENTRY glutDestroyWindow (int win)
 116 {
 117  if (buffer[win-1]) {
 118     DMesaDestroyBuffer(buffer[win-1]);
 119     buffer[win-1] = NULL;
 120  }
 121 }
 122
 123
 124 void APIENTRY glutPostRedisplay (void)
 125 {
 126  g_redisplay = GL_TRUE;
 127 }
 128
 129
 130 void APIENTRY glutSwapBuffers (void)
 131 {
 132  if (g_mouse) pc_scare_mouse();
 133  DMesaSwapBuffers(buffer[window]);
 134  if (g_mouse) pc_unscare_mouse();
 135 }
 136
 137
 138 int APIENTRY glutGetWindow (void)
 139 {
 140  return window + 1;
 141 }
 142
 143
 144 void APIENTRY glutSetWindow (int win)
 145 {
 146  window = win - 1;
 147 }
 148
 149
 150 void APIENTRY glutSetWindowTitle (const char *title)
 151 {
 152 }
 153
 154
 155 void APIENTRY glutSetIconTitle (const char *title)
 156 {
 157 }
 158
 159
 160 void APIENTRY glutPositionWindow (int x, int y)
 161 {
 162  if (DMesaViewport(buffer[window], x, y, g_width, g_height)) {
 163     g_xpos = x;
 164     g_ypos = y;
 165  }
 166 }
 167
 168
 169 void APIENTRY glutReshapeWindow (int width, int height)
 170 {
 171  if (DMesaViewport(buffer[window], g_xpos, g_ypos, width, height)) {
 172     g_width = width;
 173     g_height = height;
 174     if (reshape_func) {
 175        reshape_func(width, height);
 176     } else {
 177        glViewport(0, 0, width, height);
 178     }
 179  }
 180 }
 181
 182
 183 void APIENTRY glutPopWindow (void)
 184 {
 185 }
 186
 187
 188 void APIENTRY glutPushWindow (void)
 189 {
 190 }
 191
 192
 193 void APIENTRY glutIconifyWindow (void)
 194 {
 195 }
 196
 197
 198 void APIENTRY glutShowWindow (void)
 199 {
 200 }
 201
 202
 203 void APIENTRY glutHideWindow (void)
 204 {
 205 }