4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "bcpbuffer.h"
23 #include "bcresources.h"
24 #include "bcsignals.h"
25 #include "bcsynchronous.h"
26 #include "bcwindowbase.h"
31 BC_PBuffer::BC_PBuffer(int w, int h)
39 BC_PBuffer::~BC_PBuffer()
42 BC_WindowBase::get_synchronous()->release_pbuffer(window_id, pbuffer);
47 void BC_PBuffer::reset()
57 GLXPbuffer BC_PBuffer::get_pbuffer()
64 void BC_PBuffer::create_pbuffer(int w, int h)
68 int ww = (w + 3) & ~3, hh = (h + 3) & ~3;
72 BC_WindowBase *current_window = BC_WindowBase::get_synchronous()->current_window;
73 window_id = current_window->get_id();
75 pbuffer = BC_WindowBase::get_synchronous()->get_pbuffer(ww, hh, &glx_context);
79 GLX_PBUFFER_WIDTH, ww,
80 GLX_PBUFFER_HEIGHT, hh,
81 GLX_LARGEST_PBUFFER, False,
82 GLX_PRESERVED_CONTENTS, True,
86 Display *dpy = current_window->get_display();
87 GLXFBConfig *fb_cfgs = current_window->glx_pbuffer_fb_configs();
88 int nfb_cfgs = current_window->n_fbcfgs_pbuffer;
89 XVisualInfo *visinfo = 0;
91 for( int i=0; !pbuffer && i<nfb_cfgs; ++i ) {
92 if( visinfo ) { XFree(visinfo); visinfo = 0; }
93 BC_Resources::error = 0;
94 visinfo = glXGetVisualFromFBConfig(dpy, fb_cfgs[i]);
95 if( !visinfo || BC_Resources::error ) continue;
96 pbuffer = glXCreatePbuffer(dpy, fb_cfgs[i], pb_attrs);
97 if( BC_Resources::error ) pbuffer = 0;
100 // printf("BC_PBuffer::create_pbuffer %d current_config=%d visinfo=%p error=%d pbuffer=%p\n",
101 // __LINE__, current_config, visinfo, BC_Resources::error, pbuffer);
104 glx_context = glXCreateContext(dpy, visinfo, current_window->glx_win_context, 1);
105 BC_WindowBase::get_synchronous()->put_pbuffer(ww, hh, pbuffer, glx_context);
108 printf("BC_PBuffer::create_pbuffer: failed\n");
110 if( visinfo ) XFree(visinfo);
115 int bcgl_enable_ret; // debug
117 void BC_PBuffer::enable_opengl()
120 BC_WindowBase *current_window = BC_WindowBase::get_synchronous()->current_window;
121 bcgl_enable_ret = current_window->glx_make_current(pbuffer);
122 BC_WindowBase::get_synchronous()->is_pbuffer = 1;