Search
lxdream.org :: lxdream/src/drivers/video_gtk.c :: diff
lxdream 0.9.1
released Jun 29
Download Now
filename src/drivers/video_gtk.c
changeset 94:8d80d9c7cc7d
next103:9b9cfc5855e0
author nkeynes
date Sun Feb 05 04:05:27 2006 +0000 (13 years ago)
permissions -rw-r--r--
last change Video code reshuffle to start getting real video happening.
Implement colourspace conversions
Various tweaks
file annotate diff log raw
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 +
.