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/*
* 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)
{
}
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