filename | src/drivers/video_gtk.c |
changeset | 552:02ddb55a507b |
prev | 545:fdcdcd8b9fd1 |
next | 561:533f6b478071 |
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author | nkeynes |
date | Wed Dec 19 00:47:13 2007 +0000 (16 years ago) |
permissions | -rw-r--r-- |
last change | Fix video_gtk_init() not returning a failing status if the glx init failed Add a gtk-based blank method to prevent crash on expose |
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1 /**
2 * $Id: video_gtk.c,v 1.19 2007-10-31 12:43:51 nkeynes Exp $
3 *
4 * The PC side of the video support (responsible for actually displaying /
5 * rendering frames)
6 *
7 * Copyright (c) 2005 Nathan Keynes.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
20 #include <gdk/gdkx.h>
21 #include <gdk/gdkkeysyms.h>
22 #include <stdint.h>
23 #include "dream.h"
24 #include "display.h"
25 #include "drivers/video_glx.h"
26 #include "drivers/gl_common.h"
27 #include "gtkui/gtkui.h"
29 static GtkWidget *video_win = NULL;
30 int video_width = 640;
31 int video_height = 480;
33 gboolean video_gtk_init();
34 void video_gtk_shutdown();
35 gboolean video_gtk_display_blank( uint32_t colour );
36 uint16_t video_gtk_resolve_keysym( const gchar *keysym );
38 struct display_driver display_gtk_driver = { "gtk", video_gtk_init, video_gtk_shutdown,
39 video_gtk_resolve_keysym,
40 NULL, NULL, NULL, NULL, NULL,
41 video_gtk_display_blank, NULL };
43 /**
44 * Extract the keyval of the key event if no modifier keys were pressed -
45 * in other words get the keyval of the key by itself. The other way around
46 * would be to use the hardware keysyms directly rather than the keyvals,
47 * but the mapping looks to be messier.
48 */
49 uint16_t video_gtk_unmodified_keyval( GdkEventKey *event )
50 {
51 GdkKeymap *keymap = gdk_keymap_get_default();
52 guint keyval;
54 gdk_keymap_translate_keyboard_state( keymap, event->hardware_keycode, 0, 0, &keyval,
55 NULL, NULL, NULL );
56 return keyval;
57 }
59 gboolean video_gtk_keydown_callback(GtkWidget *widget,
60 GdkEventKey *event,
61 gpointer user_data)
62 {
63 input_event_keydown( video_gtk_unmodified_keyval(event) );
64 return TRUE;
65 }
67 gboolean video_gtk_keyup_callback(GtkWidget *widget,
68 GdkEventKey *event,
69 gpointer user_data)
70 {
71 input_event_keyup( video_gtk_unmodified_keyval(event) );
72 return TRUE;
73 }
75 uint16_t video_gtk_resolve_keysym( const gchar *keysym )
76 {
77 int val = gdk_keyval_from_name( keysym );
78 if( val == GDK_VoidSymbol )
79 return 0;
80 return (uint16_t)val;
81 }
83 gboolean video_gtk_expose_callback(GtkWidget *widget, GdkEventExpose *event, gpointer data )
84 {
85 render_buffer_t buffer = pvr2_get_front_buffer();
86 if( buffer == NULL ) {
87 display_gtk_driver.display_blank(pvr2_get_border_colour());
88 } else {
89 display_gtk_driver.display_render_buffer(buffer);
90 }
91 return TRUE;
92 }
94 gboolean video_gtk_resize_callback(GtkWidget *widget, GdkEventConfigure *event, gpointer data )
95 {
96 video_width = event->width;
97 video_height = event->height;
98 video_gtk_expose_callback(widget, NULL, data);
99 return TRUE;
100 }
102 gboolean video_gtk_init()
103 {
105 video_win = gtk_gui_get_renderarea();
106 if( video_win == NULL ) {
107 return FALSE;
108 }
110 g_signal_connect( video_win, "key_press_event",
111 G_CALLBACK(video_gtk_keydown_callback), NULL );
112 g_signal_connect( video_win, "key_release_event",
113 G_CALLBACK(video_gtk_keyup_callback), NULL );
114 g_signal_connect( video_win, "expose_event",
115 G_CALLBACK(video_gtk_expose_callback), NULL );
116 g_signal_connect( video_win, "configure_event",
117 G_CALLBACK(video_gtk_resize_callback), NULL );
118 gtk_widget_add_events( video_win,
119 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
120 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK );
121 gtk_widget_set_double_buffered( video_win, FALSE );
122 video_width = video_win->allocation.width;
123 video_height = video_win->allocation.height;
124 Display *display = gdk_x11_display_get_xdisplay( gtk_widget_get_display(GTK_WIDGET(video_win)));
125 Window window = GDK_WINDOW_XWINDOW( GTK_WIDGET(video_win)->window );
126 if( ! video_glx_init_context( display, window ) ||
127 ! video_glx_init_driver( &display_gtk_driver ) ) {
128 return FALSE;
129 }
130 return TRUE;
131 }
133 gboolean video_gtk_display_blank( uint32_t colour )
134 {
135 GdkGC *gc = gdk_gc_new(video_win->window);
136 GdkColor color = {0, ((colour>>16)&0xFF)*257, ((colour>>8)&0xFF)*257, ((colour)&0xFF)*257 };
137 GdkColormap *cmap = gdk_colormap_get_system();
138 gdk_colormap_alloc_color( cmap, &color, TRUE, TRUE );
139 gdk_gc_set_foreground( gc, &color );
140 gdk_gc_set_background( gc, &color );
141 gdk_draw_rectangle( video_win->window, gc, TRUE, 0, 0, video_width, video_height );
142 gdk_gc_destroy(gc);
143 gdk_colormap_free_colors( cmap, &color, 1 );
144 }
146 void video_gtk_shutdown()
147 {
148 if( video_win != NULL ) {
149 video_glx_shutdown();
150 }
152 }
.