filename | src/drivers/video_gtk.c |
changeset | 565:a44f0465bbbe |
prev | 561:533f6b478071 |
next | 1065:bc1cc0c54917 |
author | nkeynes |
date | Mon Jan 14 10:23:49 2008 +0000 (16 years ago) |
branch | lxdream-mmu |
permissions | -rw-r--r-- |
last change | Remove asm file and convert to inline (easier to cope with platform conventions) Add breakpoint support Add MMU store-queue support |
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1 /**
2 * $Id$
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 "pvr2/pvr2.h"
28 #include "gtkui/gtkui.h"
30 static GtkWidget *video_win = NULL;
31 int video_width = 640;
32 int video_height = 480;
34 gboolean video_gtk_init();
35 void video_gtk_shutdown();
36 gboolean video_gtk_display_blank( uint32_t colour );
37 uint16_t video_gtk_resolve_keysym( const gchar *keysym );
39 struct display_driver display_gtk_driver = { "gtk", video_gtk_init, video_gtk_shutdown,
40 video_gtk_resolve_keysym,
41 NULL, NULL, NULL, NULL, NULL,
42 video_gtk_display_blank, NULL };
44 /**
45 * Extract the keyval of the key event if no modifier keys were pressed -
46 * in other words get the keyval of the key by itself. The other way around
47 * would be to use the hardware keysyms directly rather than the keyvals,
48 * but the mapping looks to be messier.
49 */
50 uint16_t video_gtk_unmodified_keyval( GdkEventKey *event )
51 {
52 GdkKeymap *keymap = gdk_keymap_get_default();
53 guint keyval;
55 gdk_keymap_translate_keyboard_state( keymap, event->hardware_keycode, 0, 0, &keyval,
56 NULL, NULL, NULL );
57 return keyval;
58 }
60 gboolean video_gtk_keydown_callback(GtkWidget *widget,
61 GdkEventKey *event,
62 gpointer user_data)
63 {
64 input_event_keydown( video_gtk_unmodified_keyval(event) );
65 return TRUE;
66 }
68 gboolean video_gtk_keyup_callback(GtkWidget *widget,
69 GdkEventKey *event,
70 gpointer user_data)
71 {
72 input_event_keyup( video_gtk_unmodified_keyval(event) );
73 return TRUE;
74 }
76 uint16_t video_gtk_resolve_keysym( const gchar *keysym )
77 {
78 int val = gdk_keyval_from_name( keysym );
79 if( val == GDK_VoidSymbol )
80 return 0;
81 return (uint16_t)val;
82 }
84 gboolean video_gtk_expose_callback(GtkWidget *widget, GdkEventExpose *event, gpointer data )
85 {
86 render_buffer_t buffer = pvr2_get_front_buffer();
87 if( buffer == NULL ) {
88 display_gtk_driver.display_blank(pvr2_get_border_colour());
89 } else {
90 display_gtk_driver.display_render_buffer(buffer);
91 }
92 return TRUE;
93 }
95 gboolean video_gtk_resize_callback(GtkWidget *widget, GdkEventConfigure *event, gpointer data )
96 {
97 video_width = event->width;
98 video_height = event->height;
99 video_gtk_expose_callback(widget, NULL, data);
100 return TRUE;
101 }
103 gboolean video_gtk_init()
104 {
106 video_win = gtk_gui_get_renderarea();
107 if( video_win == NULL ) {
108 return FALSE;
109 }
111 g_signal_connect( video_win, "key_press_event",
112 G_CALLBACK(video_gtk_keydown_callback), NULL );
113 g_signal_connect( video_win, "key_release_event",
114 G_CALLBACK(video_gtk_keyup_callback), NULL );
115 g_signal_connect( video_win, "expose_event",
116 G_CALLBACK(video_gtk_expose_callback), NULL );
117 g_signal_connect( video_win, "configure_event",
118 G_CALLBACK(video_gtk_resize_callback), NULL );
119 gtk_widget_add_events( video_win,
120 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
121 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK );
122 gtk_widget_set_double_buffered( video_win, FALSE );
123 video_width = video_win->allocation.width;
124 video_height = video_win->allocation.height;
125 Display *display = gdk_x11_display_get_xdisplay( gtk_widget_get_display(GTK_WIDGET(video_win)));
126 Window window = GDK_WINDOW_XWINDOW( GTK_WIDGET(video_win)->window );
127 if( ! video_glx_init_context( display, window ) ||
128 ! video_glx_init_driver( &display_gtk_driver ) ) {
129 return FALSE;
130 }
131 return TRUE;
132 }
134 gboolean video_gtk_display_blank( uint32_t colour )
135 {
136 GdkGC *gc = gdk_gc_new(video_win->window);
137 GdkColor color = {0, ((colour>>16)&0xFF)*257, ((colour>>8)&0xFF)*257, ((colour)&0xFF)*257 };
138 GdkColormap *cmap = gdk_colormap_get_system();
139 gdk_colormap_alloc_color( cmap, &color, TRUE, TRUE );
140 gdk_gc_set_foreground( gc, &color );
141 gdk_gc_set_background( gc, &color );
142 gdk_draw_rectangle( video_win->window, gc, TRUE, 0, 0, video_width, video_height );
143 gdk_gc_destroy(gc);
144 gdk_colormap_free_colors( cmap, &color, 1 );
145 }
147 void video_gtk_shutdown()
148 {
149 if( video_win != NULL ) {
150 video_glx_shutdown();
151 }
153 }
.