Subversion Repositories shark

/*

 * Mesa 3-D graphics library

 * Version:  4.1

 * Copyright (C) 1995-1998  Brian Paul

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the Free

 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

/*

 * DOS/DJGPP glut driver v1.2 for Mesa 4.1

 *

 *  Copyright (C) 2002 - Borca Daniel

 *  Email : dborca@yahoo.com

 *  Web   : http://www.geocities.com/dborca

 */

#include "GL/glut.h"

#ifndef FX

#include "GL/dmesa.h"

#else

#include "GL/fxmesa.h"

#endif

#include "internal.h"

static int window;

#ifndef FX

static DMesaVisual  visual  = NULL;

static DMesaContext context = NULL;

static DMesaBuffer  buffer[MAX_WINDOWS];

#else

static void *visual = NULL;

static fxMesaContext context = NULL;

static int fx_attrib[32];

#endif

static void clean (void)

{

 int i;

 for (i=0; i<MAX_WINDOWS; i++) {

     glutDestroyWindow(i+1);

 }

#ifndef FX

 if (context) DMesaDestroyContext(context);

 if (visual)  DMesaDestroyVisual(visual);

#else

 if (context) fxMesaDestroyContext(context);

#endif

 pc_close_stdout();

 pc_close_stderr();

}

int APIENTRY glutCreateWindow (const char *title)

{

 int i;

 if (!visual) {

    int screen_w = DEFAULT_WIDTH;

    int screen_h = DEFAULT_HEIGHT;

    if ((g_width<=640) && (g_height<=480)) {

       screen_w = 640;

       screen_h = 480;

    } else if ((g_width<=800) && (g_height<=600)) {

       screen_w = 800;

       screen_h = 600;

    } else if ((g_width<=1024) && (g_height<=768)) {

       screen_w = 1024;

       screen_h = 768;

    }

#ifndef FX

    if ((visual=DMesaCreateVisual(screen_w, screen_h, DEFAULT_BPP,

                                  g_display_mode & GLUT_DOUBLE,

                                  g_display_mode & GLUT_DEPTH  ?DEPTH_SIZE  :0,

                                  g_display_mode & GLUT_STENCIL?STENCIL_SIZE:0,

                                  g_display_mode & GLUT_ACCUM  ?ACCUM_SIZE  :0))==NULL) {

       return 0;

    }

    if ((context=DMesaCreateContext(visual, NULL))==NULL) {

       DMesaDestroyVisual(visual);

       return 0;

    }

#else

    i = 0;

    if (g_display_mode & GLUT_DOUBLE) fx_attrib[i++] = FXMESA_DOUBLEBUFFER;

    if (g_display_mode & GLUT_DEPTH) { fx_attrib[i++] = FXMESA_DEPTH_SIZE; fx_attrib[i++] = DEPTH_SIZE; }

    if (g_display_mode & GLUT_STENCIL) { fx_attrib[i++] = FXMESA_STENCIL_SIZE; fx_attrib[i++] = STENCIL_SIZE; }

    if (g_display_mode & GLUT_ACCUM) { fx_attrib[i++] = FXMESA_ACCUM_SIZE; fx_attrib[i++] = ACCUM_SIZE; }

    fx_attrib[i] = FXMESA_NONE;

    if ((context=fxMesaCreateBestContext(-1, screen_w, screen_h, fx_attrib))==NULL) {

       return 0;

    }

    visual = context;

#endif

    pc_open_stdout();

    pc_open_stderr();

    pc_atexit(clean);

 }

#ifndef FX

 for (i=0; i<MAX_WINDOWS; i++) {

     if (!buffer[i]) {

        DMesaBuffer b;

        if ((b=DMesaCreateBuffer(visual, g_xpos, g_ypos, g_width, g_height))==NULL) {

           return 0;

        }

        if (!DMesaMakeCurrent(context, b)) {

           DMesaDestroyBuffer(b);

           return 0;

        }

        if (g_mouse) {

           pc_mouse_area(g_xpos, g_ypos, g_xpos + g_width - 1, g_ypos + g_height - 1);

        }

        buffer[window = i] = b;

        return i+1;

     }

 }

 return 0;

#else

 fxMesaMakeCurrent(context);

 return 1;

#endif

}

int APIENTRY glutCreateSubWindow (int win, int x, int y, int width, int height)

{

 return GL_FALSE;

}

void APIENTRY glutDestroyWindow (int win)

{

#ifndef FX

 if (buffer[win-1]) {

    DMesaDestroyBuffer(buffer[win-1]);

    buffer[win-1] = NULL;

 }

#endif

}

void APIENTRY glutPostRedisplay (void)

{

 g_redisplay = GL_TRUE;

}

void APIENTRY glutSwapBuffers (void)

{

 if (g_mouse) pc_scare_mouse();

#ifndef FX

 DMesaSwapBuffers(buffer[window]);

#else

 fxMesaSwapBuffers();

#endif

 if (g_mouse) pc_unscare_mouse();

}

int APIENTRY glutGetWindow (void)

{

 return window + 1;

}

void APIENTRY glutSetWindow (int win)

{

 window = win - 1;

}

void APIENTRY glutSetWindowTitle (const char *title)

{

}

void APIENTRY glutSetIconTitle (const char *title)

{

}

void APIENTRY glutPositionWindow (int x, int y)

{

#ifndef FX

 if (DMesaViewport(buffer[window], x, y, g_width, g_height)) {

    g_xpos = x;

    g_ypos = y;

 }

#endif

}

void APIENTRY glutReshapeWindow (int width, int height)

{

#ifndef FX

 if (DMesaViewport(buffer[window], g_xpos, g_ypos, width, height)) {

    g_width = width;

    g_height = height;

    if (reshape_func) {

       reshape_func(width, height);

    } else {

       glViewport(0, 0, width, height);

    }

 }

#endif

}

void APIENTRY glutPopWindow (void)

{

}

void APIENTRY glutPushWindow (void)

{

}

void APIENTRY glutIconifyWindow (void)

{

}

void APIENTRY glutShowWindow (void)

{

}

void APIENTRY glutHideWindow (void)

{

}