1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/drivers/video_gtk.c	Sun Feb 05 04:05:27 2006 +0000
     1.3 @@ -0,0 +1,136 @@
     1.4 +/**
     1.5 + * $Id: video_gtk.c,v 1.1 2006-02-05 04:05:27 nkeynes Exp $
     1.6 + *
     1.7 + * The PC side of the video support (responsible for actually displaying / 
     1.8 + * rendering frames)
     1.9 + *
    1.10 + * Copyright (c) 2005 Nathan Keynes.
    1.11 + *
    1.12 + * This program is free software; you can redistribute it and/or modify
    1.13 + * it under the terms of the GNU General Public License as published by
    1.14 + * the Free Software Foundation; either version 2 of the License, or
    1.15 + * (at your option) any later version.
    1.16 + *
    1.17 + * This program is distributed in the hope that it will be useful,
    1.18 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.19 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.20 + * GNU General Public License for more details.
    1.21 + */
    1.22 +
    1.23 +#include <gnome.h>
    1.24 +#include <gdk/gdkx.h>
    1.25 +#include <stdint.h>
    1.26 +#include "video.h"
    1.27 +#include "drivers/video_x11.h"
    1.28 +
    1.29 +GdkImage *video_img = NULL;
    1.30 +GtkWindow *video_win = NULL;
    1.31 +GtkWidget *video_area = NULL;
    1.32 +uint32_t video_width = 640;
    1.33 +uint32_t video_height = 480;
    1.34 +uint32_t video_frame_count = 0;
    1.35 +
    1.36 +gboolean video_gtk_set_output_format( uint32_t width, uint32_t height,  
    1.37 +				      int colour_format );
    1.38 +gboolean video_gtk_display_frame( video_buffer_t frame );
    1.39 +gboolean video_gtk_blank( uint32_t rgb );
    1.40 +
    1.41 +struct video_driver video_gtk_driver = { "Gtk", video_gtk_set_output_format,
    1.42 +					 video_gtk_display_frame,
    1.43 +					 video_gtk_blank };
    1.44 +
    1.45 +gboolean video_gtk_set_output_format( uint32_t width, uint32_t height,  
    1.46 +				      int colour_format )
    1.47 +{
    1.48 +    video_width = width;
    1.49 +    video_height = height;
    1.50 +    if( video_win == NULL ) {
    1.51 +	video_win = GTK_WINDOW(gtk_window_new( GTK_WINDOW_TOPLEVEL ));
    1.52 +	gtk_window_set_title( video_win, "DreamOn! - Emulation Window" );
    1.53 +	gtk_window_set_policy( video_win, FALSE, FALSE, FALSE );
    1.54 +	gtk_window_set_default_size( video_win, width, height );
    1.55 +    
    1.56 +	video_area = gtk_image_new();
    1.57 +	gtk_widget_show( GTK_WIDGET(video_area) );
    1.58 +	gtk_container_add( GTK_CONTAINER(video_win), GTK_WIDGET(video_area) );
    1.59 +	gtk_widget_show( GTK_WIDGET(video_win) );
    1.60 +	video_x11_set_display( gdk_x11_display_get_xdisplay( gtk_widget_get_display(video_area)),
    1.61 +			       gdk_x11_screen_get_xscreen( gtk_widget_get_screen(video_area)),
    1.62 +			       GDK_WINDOW_XWINDOW( GTK_WIDGET(video_win)->window ) );
    1.63 +			       
    1.64 +    }
    1.65 +    gtk_window_set_default_size( video_win, width, height );
    1.66 +    video_img = gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(),
    1.67 +			       width, height );
    1.68 +    gtk_image_set_from_image( GTK_IMAGE(video_area), video_img, NULL );
    1.69 +    /* Note old image is auto de-refed */
    1.70 +    return TRUE;
    1.71 +}
    1.72 +
    1.73 +
    1.74 +/**
    1.75 + * Fill the entire frame with the specified colour (00RRGGBB)
    1.76 + */
    1.77 +gboolean video_gtk_blank( uint32_t colour ) 
    1.78 +{
    1.79 +    char *p = video_img->mem;
    1.80 +    int i;
    1.81 +    for( i=0; i<video_width*video_height; i++ ) {
    1.82 +	*p++ = (colour>>16) & 0xFF;
    1.83 +	*p++ = (colour>>8) & 0xFF;
    1.84 +	*p++ = (colour) & 0xFF;
    1.85 +	*p++ = 0;
    1.86 +    }
    1.87 +}
    1.88 +
    1.89 +gboolean video_gtk_display_frame( video_buffer_t frame ) 
    1.90 +{
    1.91 +    uint32_t bytes_per_line, x, y;
    1.92 +    char *src = frame->data;
    1.93 +    char *dest = video_img->mem;
    1.94 +
    1.95 +    switch( frame->colour_format ) {
    1.96 +    case COLFMT_RGB15:
    1.97 +	for( y=0; y < frame->vres; y++ ) {
    1.98 +	    uint16_t *p = (uint16_t *)src;
    1.99 +	    for( x=0; x < frame->vres; x++ ) {
   1.100 +		uint16_t pixel = *p++;
   1.101 +		*dest++ = (pixel & 0x1F) << 3;
   1.102 +		*dest++ = (pixel & 0x3E0) >> 2;
   1.103 +		*dest++ = (pixel & 0x7C00) >> 7;
   1.104 +		*dest++ = 0;
   1.105 +	    }
   1.106 +	    src += frame->rowstride;
   1.107 +	}
   1.108 +	break;
   1.109 +    case COLFMT_RGB16:
   1.110 +	for( y=0; y < frame->vres; y++ ) {
   1.111 +	    uint16_t *p = (uint16_t *)src;
   1.112 +	    for( x=0; x < frame->vres; x++ ) {
   1.113 +		uint16_t pixel = *p++;
   1.114 +		*dest++ = (pixel & 0x1F) << 3;
   1.115 +		*dest++ = (pixel & 0x7E0) >> 3;
   1.116 +		*dest++ = (pixel & 0xF800) >> 8;
   1.117 +		*dest++ = 0;
   1.118 +	    }
   1.119 +	    src += frame->rowstride;
   1.120 +	}
   1.121 +	break;
   1.122 +    case COLFMT_RGB32:
   1.123 +	bytes_per_line = frame->hres << 2;
   1.124 +	if( bytes_per_line == frame->rowstride ) {
   1.125 +	    /* A little bit faster */
   1.126 +	    memcpy( dest, src, bytes_per_line * frame->vres );
   1.127 +	} else {
   1.128 +	    for( y=0; y< frame->vres; y++ ) {
   1.129 +		memcpy( dest, src, bytes_per_line );
   1.130 +		src += frame->rowstride;
   1.131 +		dest += bytes_per_line;
   1.132 +	    }
   1.133 +	}
   1.134 +	break;
   1.135 +    }
   1.136 +    gtk_widget_queue_draw( video_area );
   1.137 +    return TRUE;
   1.138 +}
   1.139 +