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lxdream.org :: lxdream/src/drivers/video_gtk.c
lxdream 0.9.1
released Jun 29
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filename src/drivers/video_gtk.c
changeset 1236:d93175c36387
prev1076:18c164e8aec4
next1251:b8ab59d39756
author nkeynes
date Fri Feb 24 21:17:47 2012 +1000 (9 years ago)
permissions -rw-r--r--
last change Factor video_width/video_height out into video_gl.c
Convert immediate-mode bits in video_gl.c into a structure for glDrawArray
Move setOrtho into defineOrthoMatrix in glutil.c
Rearrange various GL settings to keep a consistent state
file annotate diff log raw
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/**
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 * $Id$
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 *
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 * The PC side of the video support (responsible for actually displaying / 
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 * rendering frames)
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 */
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#include <gdk/gdkkeysyms.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "lxdream.h"
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#include "display.h"
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#include "dckeysyms.h"
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#include "drivers/video_gl.h"
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#include "drivers/joy_linux.h"
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#include "pvr2/pvr2.h"
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#include "gtkui/gtkui.h"
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#ifdef HAVE_GTK_X11
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#include <gdk/gdkx.h>
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#include "drivers/video_glx.h"
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/************* X11-specificness **********/
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guint gdk_keycode_to_modifier( GdkDisplay *display, guint keycode )
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{
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    int i;
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    int result = 0;
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    Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
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    XModifierKeymap *keymap = XGetModifierMapping( xdisplay );
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    for( i=0; i<8*keymap->max_keypermod; i++ ) {
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        if( keymap->modifiermap[i] == keycode ) {
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            result = 1 << (i/keymap->max_keypermod);
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            break;
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        }
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    }
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    XFreeModifiermap(keymap);
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    return result;
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}
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#if !(GTK_CHECK_VERSION(2,8,0))
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/* gdk_display_warp_pointer was added in GTK 2.8. If we're using an earlier
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 * version, include the code here. (Can't just set the dependency on 2.8 as
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 * it still hasn't been included in fink yet...) Original copyright statement
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 * below.
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 */
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/* GDK - The GIMP Drawing Kit
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 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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 * Boston, MA 02111-1307, USA.
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 */
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/*
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 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
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 * file for a list of people on the GTK+ Team.  See the ChangeLog
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 * files for a list of changes.  These files are distributed with
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 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
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 */
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void gdk_display_warp_pointer (GdkDisplay *display,
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                               GdkScreen  *screen,
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                               gint        x,
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                               gint        y)
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{
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    Display *xdisplay;
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    Window dest;
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    xdisplay = GDK_DISPLAY_XDISPLAY (display);
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    dest = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (screen));
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    XWarpPointer (xdisplay, None, dest, 0, 0, 0, 0, x, y);  
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}
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#endif
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#endif
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#ifdef HAVE_GTK_OSX
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#include "drivers/video_nsgl.h"
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// Include this prototype as some systems don't have gdkquartz.h installed
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NSView  *gdk_quartz_window_get_nsview( GdkWindow *window);
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guint gdk_keycode_to_modifier( GdkDisplay *display, guint keycode )
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{
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    return 0;
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}
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#endif
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GtkWidget *gtk_video_drawable = NULL;
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gboolean video_gtk_init();
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void video_gtk_shutdown();
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void video_gtk_display_blank( uint32_t colour );
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static uint16_t video_gtk_resolve_keysym( const gchar *keysym );
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static uint16_t video_gtk_keycode_to_dckeysym(uint16_t keycode);
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static gchar *video_gtk_keycode_to_keysym(uint16_t keycode);
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struct display_driver display_gtk_driver = { 
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        "gtk",
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        N_("GTK-based OpenGL driver"),
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        video_gtk_init, 
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        video_gtk_shutdown,
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        video_gtk_resolve_keysym,
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        video_gtk_keycode_to_dckeysym,
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        video_gtk_keycode_to_keysym,
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        NULL, NULL, NULL, NULL, NULL, NULL, 
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        video_gtk_display_blank, NULL, NULL };
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gboolean video_gtk_expose_callback(GtkWidget *widget, GdkEventExpose *event, gpointer data )
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{
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    pvr2_draw_frame();
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    return TRUE;
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}
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gboolean video_gtk_resize_callback(GtkWidget *widget, GdkEventConfigure *event, gpointer data )
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{
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    gl_set_video_size(event->width, event->height);
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    pvr2_draw_frame();
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    return TRUE;
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}
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static uint16_t video_gtk_resolve_keysym( const gchar *keysym )
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{
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    int val = gdk_keyval_from_name( keysym );
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    if( val == GDK_VoidSymbol )
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        return 0;
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    return (uint16_t)val;
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}
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static gchar *video_gtk_keycode_to_keysym( uint16_t keycode )
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{
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    return g_strdup(gdk_keyval_name(keycode));
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}
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static uint16_t video_gtk_keycode_to_dckeysym(uint16_t keycode)
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{
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    if( keycode >= 'a' && keycode <= 'z' ) {
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        return (keycode - 'a') + DCKB_a;
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    } else if( keycode >= '1' && keycode <= '9' ) {
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        return (keycode - '1') + DCKB_1;
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    }
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    switch(keycode) {
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    case GDK_0:         return DCKB_0;
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    case GDK_Return:    return DCKB_Return;
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    case GDK_Escape:    return DCKB_Escape;
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    case GDK_BackSpace: return DCKB_BackSpace;
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    case GDK_Tab:       return DCKB_Tab;
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    case GDK_space:     return DCKB_space;
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    case GDK_minus:     return DCKB_minus;
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    case GDK_equal:     return DCKB_equal;
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    case GDK_bracketleft: return DCKB_bracketleft;
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    case GDK_bracketright: return DCKB_bracketright;
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    case GDK_semicolon: return DCKB_semicolon;
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    case GDK_apostrophe:return DCKB_apostrophe;
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    case GDK_grave : return DCKB_grave;
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    case GDK_comma:     return DCKB_comma;
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    case GDK_period:    return DCKB_period;
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    case GDK_slash:     return DCKB_slash; 
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    case GDK_Caps_Lock: return DCKB_Caps_Lock;
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    case GDK_F1:        return DCKB_F1;
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    case GDK_F2:        return DCKB_F2;
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    case GDK_F3:        return DCKB_F3;
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    case GDK_F4:        return DCKB_F4;
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    case GDK_F5:        return DCKB_F5;
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    case GDK_F6:        return DCKB_F6;
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    case GDK_F7:        return DCKB_F7;
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    case GDK_F8:        return DCKB_F8;
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    case GDK_F9:        return DCKB_F9;
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    case GDK_F10:       return DCKB_F10;
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    case GDK_F11:       return DCKB_F11;
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    case GDK_F12:       return DCKB_F12;
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    case GDK_Scroll_Lock: return DCKB_Scroll_Lock;
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    case GDK_Pause:     return DCKB_Pause;
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    case GDK_Insert:    return DCKB_Insert;
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    case GDK_Home:      return DCKB_Home;
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    case GDK_Page_Up:   return DCKB_Page_Up;
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    case GDK_Delete:    return DCKB_Delete;
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    case GDK_End:       return DCKB_End;
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    case GDK_Page_Down: return DCKB_Page_Down;
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    case GDK_Right:     return DCKB_Right;
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    case GDK_Left:      return DCKB_Left;
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    case GDK_Down:      return DCKB_Down;
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    case GDK_Up:        return DCKB_Up;
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    case GDK_Num_Lock:  return DCKB_Num_Lock;
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    case GDK_KP_Divide: return DCKB_KP_Divide;
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    case GDK_KP_Multiply: return DCKB_KP_Multiply;
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    case GDK_KP_Subtract: return DCKB_KP_Subtract;
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    case GDK_KP_Add:    return DCKB_KP_Add;
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    case GDK_KP_Enter:  return DCKB_KP_Enter;
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    case GDK_KP_End:    return DCKB_KP_End;
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    case GDK_KP_Down:   return DCKB_KP_Down;
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    case GDK_KP_Page_Down: return DCKB_KP_Page_Down;
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    case GDK_KP_Left:   return DCKB_KP_Left;
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    case GDK_KP_Begin:  return DCKB_KP_Begin;
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    case GDK_KP_Right:  return DCKB_KP_Right;
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    case GDK_KP_Home:   return DCKB_KP_Home;
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    case GDK_KP_Up:     return DCKB_KP_Up;
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    case GDK_KP_Page_Up:return DCKB_KP_Page_Up;
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    case GDK_KP_Insert: return DCKB_KP_Insert;
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    case GDK_KP_Delete: return DCKB_KP_Delete;
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    case GDK_backslash: return DCKB_backslash;
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    case GDK_Control_L: return DCKB_Control_L;
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    case GDK_Shift_L:   return DCKB_Shift_L;
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    case GDK_Alt_L:     return DCKB_Alt_L;
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    case GDK_Meta_L:    return DCKB_Meta_L;
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    case GDK_Control_R: return DCKB_Control_R;
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    case GDK_Shift_R:   return DCKB_Shift_R;
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    case GDK_Alt_R:     return DCKB_Alt_R;
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    case GDK_Meta_R:    return DCKB_Meta_R;
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    }
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    return DCKB_NONE;
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}
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GtkWidget *video_gtk_create_drawable()
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{
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    GtkWidget *drawable = gtk_drawing_area_new();
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    GTK_WIDGET_SET_FLAGS(drawable, GTK_CAN_FOCUS|GTK_CAN_DEFAULT);
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    g_signal_connect( drawable, "expose_event",
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                      G_CALLBACK(video_gtk_expose_callback), NULL );
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    g_signal_connect( drawable, "configure_event",
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                      G_CALLBACK(video_gtk_resize_callback), NULL );
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#ifdef HAVE_GLX
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    Display *display = gdk_x11_display_get_xdisplay( gtk_widget_get_display(drawable));
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    Screen *screen = gdk_x11_screen_get_xscreen( gtk_widget_get_screen(drawable));
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    int screen_no = XScreenNumberOfScreen(screen);
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    if( !video_glx_init(display, screen_no) ) {
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        ERROR( "Unable to initialize GLX, aborting" );
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        exit(3);
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    }
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    XVisualInfo *visual = video_glx_get_visual();
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    if( visual != NULL ) {
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        GdkVisual *gdkvis = gdk_x11_screen_lookup_visual( gtk_widget_get_screen(drawable), visual->visualid );
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        GdkColormap *colormap = gdk_colormap_new( gdkvis, FALSE );
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        gtk_widget_set_colormap( drawable, colormap );
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    }
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#endif
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    gtk_video_drawable = drawable;
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    return drawable;
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}
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gboolean video_gtk_init()
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{
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    if( gtk_video_drawable == NULL ) {
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        return FALSE;
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    }
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    gl_set_video_size(gtk_video_drawable->allocation.width, gtk_video_drawable->allocation.height);
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#ifdef HAVE_OSMESA
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    video_gdk_init_driver( &display_gtk_driver );
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#else
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#ifdef HAVE_GLX
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    Display *display = gdk_x11_display_get_xdisplay( gtk_widget_get_display(GTK_WIDGET(gtk_video_drawable)));
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    Window window = GDK_WINDOW_XWINDOW( GTK_WIDGET(gtk_video_drawable)->window );
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    if( ! video_glx_init_context( display, window ) ||
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            ! video_glx_init_driver( &display_gtk_driver ) ) {
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        return FALSE;
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    }
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#else
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#ifdef HAVE_NSGL
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    NSView *view = gdk_quartz_window_get_nsview(gtk_video_drawable->window);
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    if( ! video_nsgl_init_driver( view, &display_gtk_driver ) ) {
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        return FALSE;
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    }
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#endif
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#endif
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#endif
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    pvr2_setup_gl_context();
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#ifdef HAVE_LINUX_JOYSTICK
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    linux_joystick_init();
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#endif
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    return TRUE;
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}
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void video_gtk_display_blank( uint32_t colour )
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{
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    GdkGC *gc = gdk_gc_new(gtk_video_drawable->window);
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    GdkColor color = {0, ((colour>>16)&0xFF)*257, ((colour>>8)&0xFF)*257, ((colour)&0xFF)*257 };
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    GdkColormap *cmap = gdk_colormap_get_system();
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    gdk_colormap_alloc_color( cmap, &color, TRUE, TRUE );
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    gdk_gc_set_foreground( gc, &color );
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    gdk_gc_set_background( gc, &color );
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    gdk_draw_rectangle( gtk_video_drawable->window, gc, TRUE, 0, 0, video_width, video_height );
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    gdk_gc_destroy(gc);
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    gdk_colormap_free_colors( cmap, &color, 1 );
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}
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void video_gtk_shutdown()
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{
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    if( gtk_video_drawable != NULL ) {
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#ifdef HAVE_OSMESA
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        video_gdk_shutdown();
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#else
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#ifdef HAVE_GLX
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        video_glx_shutdown();
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#else
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#ifdef HAVE_NSGL
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        video_nsgl_shutdown();
nkeynes@663
   334
#endif
nkeynes@653
   335
#endif
nkeynes@635
   336
#endif
nkeynes@530
   337
    }
nkeynes@620
   338
#ifdef HAVE_LINUX_JOYSTICK
nkeynes@620
   339
    linux_joystick_shutdown();
nkeynes@620
   340
#endif
nkeynes@94
   341
}
nkeynes@94
   342
.