src/glut/dos/window.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  4.0
   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 v1.0 for Mesa 4.0
  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     int screen_w = DEFAULT_WIDTH;
  66     int screen_h = DEFAULT_HEIGHT;
  67
  68     if ((g_width<=640) && (g_height<=480)) {
  69        screen_w = 640;
  70        screen_h = 480;
  71     } else if ((g_width<=800) && (g_height<=600)) {
  72        screen_w = 800;
  73        screen_h = 600;
  74     } else if ((g_width<=1024) && (g_height<=768)) {
  75        screen_w = 1024;
  76        screen_h = 768;
  77     }
  78
  79     if ((visual=DMesaCreateVisual(screen_w, screen_h, DEFAULT_BPP,
  80                                   g_display_mode & GLUT_DOUBLE,
  81                                   g_display_mode & GLUT_DEPTH  ?DEPTH_SIZE  :0,
  82                                   g_display_mode & GLUT_STENCIL?STENCIL_SIZE:0,
  83                                   g_display_mode & GLUT_ACCUM  ?ACCUM_SIZE  :0))==NULL) {
  84        return 0;
  85     }
  86
  87     if ((context=DMesaCreateContext(visual, NULL))==NULL) {
  88        DMesaDestroyVisual(visual);
  89        return 0;
  90     }
  91
  92     pc_open_stdout();
  93     pc_open_stderr();
  94     pc_atexit(clean);
  95  }
  96
  97  for (i=0; i<MAX_WINDOWS; i++) {
  98      if (!buffer[i]) {
  99         DMesaBuffer b;
 100
 101         if ((b=DMesaCreateBuffer(visual, g_xpos, g_ypos, g_width, g_height))==NULL) {
 102            return 0;
 103         }
 104         if (!DMesaMakeCurrent(context, b)) {
 105            DMesaDestroyBuffer(b);
 106            return 0;
 107         }
 108         if (g_mouse) {
 109            pc_mouse_area(g_xpos, g_ypos, g_xpos + g_width - 1, g_ypos + g_height - 1);
 110         }
 111
 112         buffer[window = i] = b;
 113         return i+1;
 114      }
 115  }
 116
 117  return 0;
 118 }
 119
 120
 121 int APIENTRY glutCreateSubWindow (int win, int x, int y, int width, int height)
 122 {
 123  return GL_FALSE;
 124 }
 125
 126
 127 void APIENTRY glutDestroyWindow (int win)
 128 {
 129  if (buffer[win-1]) {
 130     DMesaDestroyBuffer(buffer[win-1]);
 131     buffer[win-1] = NULL;
 132  }
 133 }
 134
 135
 136 void APIENTRY glutPostRedisplay (void)
 137 {
 138  g_redisplay = GL_TRUE;
 139 }
 140
 141
 142 void APIENTRY glutSwapBuffers (void)
 143 {
 144  if (g_mouse) pc_scare_mouse();
 145  DMesaSwapBuffers(buffer[window]);
 146  if (g_mouse) pc_unscare_mouse();
 147 }
 148
 149
 150 int APIENTRY glutGetWindow (void)
 151 {
 152  return window + 1;
 153 }
 154
 155
 156 void APIENTRY glutSetWindow (int win)
 157 {
 158  window = win - 1;
 159 }
 160
 161
 162 void APIENTRY glutSetWindowTitle (const char *title)
 163 {
 164 }
 165
 166
 167 void APIENTRY glutSetIconTitle (const char *title)
 168 {
 169 }
 170
 171
 172 void APIENTRY glutPositionWindow (int x, int y)
 173 {
 174  if (DMesaViewport(buffer[window], x, y, g_width, g_height)) {
 175     g_xpos = x;
 176     g_ypos = y;
 177  }
 178 }
 179
 180
 181 void APIENTRY glutReshapeWindow (int width, int height)
 182 {
 183  if (DMesaViewport(buffer[window], g_xpos, g_ypos, width, height)) {
 184     g_width = width;
 185     g_height = height;
 186     if (reshape_func) {
 187        reshape_func(width, height);
 188     } else {
 189        glViewport(0, 0, width, height);
 190     }
 191  }
 192 }
 193
 194
 195 void APIENTRY glutPopWindow (void)
 196 {
 197 }
 198
 199
 200 void APIENTRY glutPushWindow (void)
 201 {
 202 }
 203
 204
 205 void APIENTRY glutIconifyWindow (void)
 206 {
 207 }
 208
 209
 210 void APIENTRY glutShowWindow (void)
 211 {
 212 }
 213
 214
 215 void APIENTRY glutHideWindow (void)
 216 {
 217 }