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 v1.1 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 #ifndef FX
  32 #include "GL/dmesa.h"
  33 #else
  34 #include "GL/fxmesa.h"
  35 #endif
  36 #include "internal.h"
  37
  38
  39
  40 static int window;
  41
  42 #ifndef FX
  43 static DMesaVisual  visual  = NULL;
  44 static DMesaContext context = NULL;
  45 static DMesaBuffer  buffer[MAX_WINDOWS];
  46 #else
  47 static void *visual = NULL;
  48 static fxMesaContext context = NULL;
  49 static int fx_attrib[32];
  50 #endif
  51
  52
  53
  54 static void clean (void)
  55 {
  56  int i;
  57
  58  for (i=0; i<MAX_WINDOWS; i++) {
  59      glutDestroyWindow(i+1);
  60  }
  61 #ifndef FX
  62  if (context) DMesaDestroyContext(context);
  63  if (visual)  DMesaDestroyVisual(visual);
  64 #else
  65  if (context) fxMesaDestroyContext(context);
  66 #endif
  67
  68  pc_close_stdout();
  69  pc_close_stderr();
  70 }
  71
  72
  73
  74 int APIENTRY glutCreateWindow (const char *title)
  75 {
  76  int i;
  77
  78  if (!visual) {
  79     int screen_w = DEFAULT_WIDTH;
  80     int screen_h = DEFAULT_HEIGHT;
  81
  82     if ((g_width<=640) && (g_height<=480)) {
  83        screen_w = 640;
  84        screen_h = 480;
  85     } else if ((g_width<=800) && (g_height<=600)) {
  86        screen_w = 800;
  87        screen_h = 600;
  88     } else if ((g_width<=1024) && (g_height<=768)) {
  89        screen_w = 1024;
  90        screen_h = 768;
  91     }
  92
  93 #ifndef FX
  94     if ((visual=DMesaCreateVisual(screen_w, screen_h, DEFAULT_BPP,
  95                                   g_display_mode & GLUT_DOUBLE,
  96                                   g_display_mode & GLUT_DEPTH  ?DEPTH_SIZE  :0,
  97                                   g_display_mode & GLUT_STENCIL?STENCIL_SIZE:0,
  98                                   g_display_mode & GLUT_ACCUM  ?ACCUM_SIZE  :0))==NULL) {
  99        return 0;
 100     }
 101
 102     if ((context=DMesaCreateContext(visual, NULL))==NULL) {
 103        DMesaDestroyVisual(visual);
 104        return 0;
 105     }
 106 #else
 107     i = 0;
 108     if (g_display_mode & GLUT_DOUBLE) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;
 109     if (g_display_mode & GLUT_DEPTH) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = DEPTH_SIZE; }
 110     if (g_display_mode & GLUT_STENCIL) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = STENCIL_SIZE; }
 111     if (g_display_mode & GLUT_ACCUM) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = ACCUM_SIZE; }
 112     fx_attrib[i] = FXMESA_NONE;
 113     if ((context=fxMesaCreateBestContext(-1, screen_w, screen_h, fx_attrib))==NULL) {
 114        return 0;
 115     }
 116 #endif
 117
 118     pc_open_stdout();
 119     pc_open_stderr();
 120     pc_atexit(clean);
 121  }
 122
 123 #ifndef FX
 124  for (i=0; i<MAX_WINDOWS; i++) {
 125      if (!buffer[i]) {
 126         DMesaBuffer b;
 127
 128         if ((b=DMesaCreateBuffer(visual, g_xpos, g_ypos, g_width, g_height))==NULL) {
 129            return 0;
 130         }
 131         if (!DMesaMakeCurrent(context, b)) {
 132            DMesaDestroyBuffer(b);
 133            return 0;
 134         }
 135         if (g_mouse) {
 136            pc_mouse_area(g_xpos, g_ypos, g_xpos + g_width - 1, g_ypos + g_height - 1);
 137         }
 138
 139         buffer[window = i] = b;
 140         return i+1;
 141      }
 142  }
 143
 144  return 0;
 145 #else
 146  fxMesaMakeCurrent(context);
 147
 148  return 1;
 149 #endif
 150 }
 151
 152
 153 int APIENTRY glutCreateSubWindow (int win, int x, int y, int width, int height)
 154 {
 155  return GL_FALSE;
 156 }
 157
 158
 159 void APIENTRY glutDestroyWindow (int win)
 160 {
 161 #ifndef FX
 162  if (buffer[win-1]) {
 163     DMesaDestroyBuffer(buffer[win-1]);
 164     buffer[win-1] = NULL;
 165  }
 166 #endif
 167 }
 168
 169
 170 void APIENTRY glutPostRedisplay (void)
 171 {
 172  g_redisplay = GL_TRUE;
 173 }
 174
 175
 176 void APIENTRY glutSwapBuffers (void)
 177 {
 178  if (g_mouse) pc_scare_mouse();
 179 #ifndef FX
 180  DMesaSwapBuffers(buffer[window]);
 181 #else
 182  fxMesaSwapBuffers();
 183 #endif
 184  if (g_mouse) pc_unscare_mouse();
 185 }
 186
 187
 188 int APIENTRY glutGetWindow (void)
 189 {
 190  return window + 1;
 191 }
 192
 193
 194 void APIENTRY glutSetWindow (int win)
 195 {
 196  window = win - 1;
 197 }
 198
 199
 200 void APIENTRY glutSetWindowTitle (const char *title)
 201 {
 202 }
 203
 204
 205 void APIENTRY glutSetIconTitle (const char *title)
 206 {
 207 }
 208
 209
 210 void APIENTRY glutPositionWindow (int x, int y)
 211 {
 212 #ifndef FX
 213  if (DMesaViewport(buffer[window], x, y, g_width, g_height)) {
 214     g_xpos = x;
 215     g_ypos = y;
 216  }
 217 #endif
 218 }
 219
 220
 221 void APIENTRY glutReshapeWindow (int width, int height)
 222 {
 223 #ifndef FX
 224  if (DMesaViewport(buffer[window], g_xpos, g_ypos, width, height)) {
 225     g_width = width;
 226     g_height = height;
 227     if (reshape_func) {
 228        reshape_func(width, height);
 229     } else {
 230        glViewport(0, 0, width, height);
 231     }
 232  }
 233 #endif
 234 }
 235
 236
 237 void APIENTRY glutPopWindow (void)
 238 {
 239 }
 240
 241
 242 void APIENTRY glutPushWindow (void)
 243 {
 244 }
 245
 246
 247 void APIENTRY glutIconifyWindow (void)
 248 {
 249 }
 250
 251
 252 void APIENTRY glutShowWindow (void)
 253 {
 254 }
 255
 256
 257 void APIENTRY glutHideWindow (void)
 258 {
 259 }