bool
GtkGlExtGlue::init(int argc, char** argv[])
{
// GNASH_REPORT_FUNCTION;
gtk_gl_init (&argc, argv);
gint major, minor;
gdk_gl_query_version (&major, &minor);
log_debug ("OpenGL extension version - %d.%d", (int)major, (int)minor);
GdkGLConfigMode glcmode = (GdkGLConfigMode)(GDK_GL_MODE_RGB |
GDK_GL_MODE_STENCIL |
GDK_GL_MODE_DOUBLE |
GDK_GL_MODE_ACCUM);
_glconfig = gdk_gl_config_new_by_mode (glcmode);
if (!_glconfig) {
log_error (_("Cannot find the double-buffered visual.\n"
"Trying single-buffered visual."));
glcmode = (GdkGLConfigMode)(GDK_GL_MODE_RGB | GDK_GL_MODE_DEPTH);
_glconfig = gdk_gl_config_new_by_mode (glcmode);
if (!_glconfig) {
log_error (_("No appropriate OpenGL-capable visual found."));
gtk_main_quit(); // XXX
} else {
log_debug ("Got single-buffered visual.");
}
} else {
log_debug ("Got double-buffered visual.");
}
return true;
}
static int lglext_query_version(lua_State* L)
{
int major, minor;
gdk_gl_query_version(&major, &minor);
lua_pushinteger(L, major);
lua_pushinteger(L, minor);
return 2;
}
static gboolean
__init ()
{
dbg(2, "...");
if(!gl_context){
gtk_gl_init(NULL, NULL);
if(wf_debug){
gint major, minor;
gdk_gl_query_version (&major, &minor);
g_print ("GtkGLExt version %d.%d\n", major, minor);
}
}
glconfig = gdk_gl_config_new_by_mode( GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH | GDK_GL_MODE_DOUBLE );
if (!glconfig) { gerr ("Cannot initialise gtkglext."); return false; }
return true;
}
bool
GtkGlExtGlue::init(int argc, char** argv[])
{
// GNASH_REPORT_FUNCTION;
#ifdef FIX_I810_LOD_BIAS
int c = getopt (argc, *argv, "m:");
if (c == 'm') {
_tex_lod_bias = (float) strtof(optarg, NULL);
}
#endif
gtk_gl_init (&argc, argv);
gint major, minor;
gdk_gl_query_version (&major, &minor);
log_debug (_("OpenGL extension version - %d.%d"),
(int)major, (int)minor);
GdkGLConfigMode glcmode = (GdkGLConfigMode)(GDK_GL_MODE_RGB |
GDK_GL_MODE_STENCIL |
GDK_GL_MODE_DOUBLE |
GDK_GL_MODE_ACCUM);
_glconfig = gdk_gl_config_new_by_mode (glcmode);
if (!_glconfig) {
log_error (_("Cannot find the double-buffered visual.\n"
"Trying single-buffered visual."));
glcmode = (GdkGLConfigMode)(GDK_GL_MODE_RGB | GDK_GL_MODE_DEPTH);
_glconfig = gdk_gl_config_new_by_mode (glcmode);
if (!_glconfig) {
log_error (_("No appropriate OpenGL-capable visual found."));
gtk_main_quit(); // XXX
} else {
log_debug (_("Got single-buffered visual."));
}
} else {
log_debug (_("Got double-buffered visual."));
}
return true;
}
int
main (int argc,
char *argv[])
{
GdkGLConfig *glconfig;
gint major, minor;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GtkWidget *button;
/*
* Init GTK.
*/
gtk_init (&argc, &argv);
/*
* Init GtkGLExt.
*/
gtk_gl_init (&argc, &argv);
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version (&major, &minor);
g_print ("\nOpenGL extension version - %d.%d\n",
major, minor);
/*
* Configure OpenGL-capable visual.
*/
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH |
GDK_GL_MODE_SINGLE);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
examine_gl_config_attrib (glconfig);
/*
* Top-level window.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "simple");
/* Get automatically redrawn if any of their children changed allocation. */
gtk_container_set_reallocate_redraws (GTK_CONTAINER (window), TRUE);
g_signal_connect (G_OBJECT (window), "delete_event",
G_CALLBACK (gtk_main_quit), NULL);
/*
* VBox.
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/*
* Drawing area for drawing OpenGL scene.
*/
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 200, 200);
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability (drawing_area,
glconfig,
NULL,
TRUE,
GDK_GL_RGBA_TYPE);
g_signal_connect_after (G_OBJECT (drawing_area), "realize",
G_CALLBACK (realize), NULL);
g_signal_connect (G_OBJECT (drawing_area), "configure_event",
G_CALLBACK (configure_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "expose_event",
G_CALLBACK (expose_event), NULL);
gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show (drawing_area);
/*
* Simple quit button.
*/
button = gtk_button_new_with_label ("Quit");
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (gtk_main_quit), NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/*
* Show window.
*/
gtk_widget_show (window);
/*
* Main loop.
*/
gtk_main ();
return 0;
}
int
main (int argc,
char *argv[])
{
gint major, minor;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GtkWidget *button;
/*
* Init GTK.
*/
gtk_init (&argc, &argv);
/*
* Init GtkGLExt.
*/
gtk_gl_init (&argc, &argv);
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version (&major, &minor);
g_print ("\nOpenGL extension version - %d.%d\n",
major, minor);
/*
* Configure OpenGL-capable visual.
*/
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH |
GDK_GL_MODE_SINGLE);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
examine_gl_config_attrib (glconfig);
/*
* Top-level window.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "pixmap");
/*
* If window manager doesn't watch the WM_COLORMAP_WINDOWS property on
* the top-level window, we have to set OpenGL window's colormap to the
* top-level window.
*/
gtk_widget_set_colormap (window,
gdk_gl_config_get_colormap (glconfig));
g_signal_connect (G_OBJECT (window), "delete_event",
G_CALLBACK (gtk_main_quit), NULL);
/*
* VBox.
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/*
* Drawing area for drawing OpenGL scene.
*/
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 200, 200);
/* Set OpenGL-capable colormap. */
gtk_widget_set_colormap (drawing_area,
gdk_gl_config_get_colormap (glconfig));
g_signal_connect (G_OBJECT (drawing_area), "configure_event",
G_CALLBACK (configure_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "expose_event",
G_CALLBACK (expose_event), NULL);
gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show (drawing_area);
/*
* Simple quit button.
*/
button = gtk_button_new_with_label ("Quit");
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (gtk_main_quit), NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/*
* Show window.
*/
gtk_widget_show (window);
/*
* Main loop.
*/
/* Destroy the GLX context explicitly when application is terminated. */
gtk_quit_add (0, (GtkFunction) destroy_gl_context, NULL);
gtk_main ();
return 0;
}
int main (int argc, char **argv)
{
SDL_SysWMinfo info;
Display *gtkglext_display = NULL;
Window gtkglext_window = 0;
GLXContext gtkglext_gl_context = NULL;
GstPipeline *pipeline = NULL;
GstBus *bus = NULL;
GstElement *glfilter = NULL;
GstElement *fakesink = NULL;
GstState state;
GAsyncQueue *queue_input_buf = NULL;
GAsyncQueue *queue_output_buf = NULL;
gst_init (&argc, &argv);
gtk_init (&argc, &argv);
gtk_gl_init(&argc, &argv);
gint major;
gint minor;
gdk_gl_query_version(&major, &minor);
g_print("\nOpenGL extension version - %d.%d\n", major, minor);
/* Try double-buffered visual */
GdkGLConfig* glconfig;
// the line above does not work in C++ if the cast is not there.
glconfig = gdk_gl_config_new_by_mode(static_cast<GdkGLConfigMode>(GDK_GL_MODE_RGB | GDK_GL_MODE_DOUBLE));
if (glconfig == NULL)
{
g_print("*** Cannot find the double-buffered visual.\n");
g_print("*** Trying single-buffered visual.\n");
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode(static_cast<GdkGLConfigMode>(GDK_GL_MODE_RGB));
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit(1);
}
}
examine_gl_config_attrib(glconfig);
// Main GTK window
GtkWidget* window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request(window, 640, 480);
gtk_window_set_title(GTK_WINDOW (window), "Toonloop 1.3 experimental");
GdkGeometry geometry;
geometry.min_width = 1;
geometry.min_height = 1;
geometry.max_width = -1;
geometry.max_height = -1;
gtk_window_set_geometry_hints(GTK_WINDOW(window), window, &geometry, GDK_HINT_MIN_SIZE);
g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK(on_delete_event), NULL);
//area where the video is drawn
GtkWidget* drawing_area = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), drawing_area);
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability(drawing_area, glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE);
/* Loop, drawing and checking events */
g_signal_connect_after(G_OBJECT(drawing_area), "realize", G_CALLBACK(on_realize), NULL);
g_signal_connect(G_OBJECT(drawing_area), "configure_event", G_CALLBACK(on_configure_event), NULL);
g_signal_connect(G_OBJECT(drawing_area), "expose_event", G_CALLBACK(on_expose_event), NULL);
gtk_widget_show_all(window);
// ------------------ done with the GTK GUI
/* retrieve and turn off gtkglext opengl context */
SDL_VERSION (&info.version);
SDL_GetWMInfo (&info);
gtkglext_display = info.info.x11.display;
gtkglext_window = info.info.x11.window;
gtkglext_gl_context = glXGetCurrentContext ();
glXMakeCurrent (gtkglext_display, None, 0);
pipeline =
GST_PIPELINE (gst_parse_launch
("videotestsrc ! video/x-raw-yuv, width=320, height=240, framerate=(fraction)30/1 ! "
"glupload ! gleffects effect=5 ! fakesink sync=1", NULL));
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (bus, "message::error", G_CALLBACK (end_stream_cb), NULL);
g_signal_connect (bus, "message::warning", G_CALLBACK (end_stream_cb), NULL);
g_signal_connect (bus, "message::eos", G_CALLBACK (end_stream_cb), NULL);
gst_object_unref (bus);
/* gtkglext_gl_context is an external OpenGL context with which gst-plugins-gl want to share textures */
glfilter = gst_bin_get_by_name (GST_BIN (pipeline), "gleffects0");
g_object_set (G_OBJECT (glfilter), "external-opengl-context",
gtkglext_gl_context, NULL);
g_object_unref (glfilter);
/* NULL to PAUSED state pipeline to make sure the gst opengl context is created and
* shared with the gtkglext one */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED);
state = GST_STATE_PAUSED;
if (gst_element_get_state (GST_ELEMENT (pipeline), &state, NULL,
GST_CLOCK_TIME_NONE) != GST_STATE_CHANGE_SUCCESS) {
g_debug ("failed to pause pipeline\n");
return -1;
}
/* turn on back gtk opengl context */
glXMakeCurrent (gtkglext_display, gtkglext_window, gtkglext_gl_context);
/* append a gst-gl texture to this queue when you do not need it no more */
fakesink = gst_bin_get_by_name (GST_BIN (pipeline), "fakesink0");
g_object_set (G_OBJECT (fakesink), "signal-handoffs", TRUE, NULL);
g_signal_connect (fakesink, "handoff", G_CALLBACK (on_gst_buffer), NULL);
queue_input_buf = g_async_queue_new ();
queue_output_buf = g_async_queue_new ();
g_object_set_data (G_OBJECT (fakesink), "queue_input_buf", queue_input_buf);
g_object_set_data (G_OBJECT (fakesink), "queue_output_buf", queue_output_buf);
g_object_unref (fakesink);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
gtk_main();
/* before to deinitialize the gst-gl-opengl context,
* no shared context (here the gtkglext one) must be current
*/
glXMakeCurrent (gtkglext_display, gtkglext_window, gtkglext_gl_context);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
g_object_unref (pipeline);
/* turn on back gtkglext opengl context */
glXMakeCurrent (gtkglext_display, None, 0);
/* make sure there is no pending gst gl buffer in the communication queues
* between gtkglext and gst-gl
*/
while (g_async_queue_length (queue_input_buf) > 0) {
GstBuffer *buf = (GstBuffer *) g_async_queue_pop (queue_input_buf);
gst_buffer_unref (buf);
}
while (g_async_queue_length (queue_output_buf) > 0) {
GstBuffer *buf = (GstBuffer *) g_async_queue_pop (queue_output_buf);
gst_buffer_unref (buf);
}
return 0;
}
/*
run this function only once to create and customize gtk based opengl canvas
all signal, socket connections are done here for opengl interractions
params:gl config object, gtk container widget for opengl canvas
return value:none
*/
void create_window(GdkGLConfig * glconfig, GtkWidget * vbox)
{
gint major, minor;
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version(&major, &minor);
g_print("\nOpenGL extension version - %d.%d\n", major, minor);
/* Try double-buffered visual */
if (IS_TEST_MODE_ON) //printf some gl values, to test if your system has opengl stuff
examine_gl_config_attrib(glconfig);
/* Drawing area for drawing OpenGL scene. */
view->drawing_area = gtk_drawing_area_new();
gtk_widget_set_size_request(view->drawing_area, 300, 300);
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability(view->drawing_area,
glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE);
gtk_widget_add_events(view->drawing_area,
// GDK_BUTTON_MOTION_MASK = 1 << 4,
GDK_BUTTON_MOTION_MASK |
GDK_POINTER_MOTION_MASK|
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_VISIBILITY_NOTIFY_MASK);
g_signal_connect_after(G_OBJECT(view->drawing_area), "realize",
G_CALLBACK(realize), NULL);
g_signal_connect(G_OBJECT(view->drawing_area), "configure_event",
G_CALLBACK(configure_event), NULL);
g_signal_connect(G_OBJECT(view->drawing_area), "expose_event",
G_CALLBACK(expose_event), NULL);
g_signal_connect(G_OBJECT(view->drawing_area), "button_press_event",
G_CALLBACK(button_press_event), NULL);
g_signal_connect(G_OBJECT(view->drawing_area), "button_release_event",
G_CALLBACK(button_release_event), NULL);
g_signal_connect(G_OBJECT(view->drawing_area), "motion_notify_event",
G_CALLBACK(motion_notify_event), NULL);
gtk_box_pack_start(GTK_BOX(vbox), view->drawing_area, TRUE, TRUE, 0);
gtk_widget_show(view->drawing_area);
/* Popup menu. */
#if 0
menu = create_popup_menu(view->drawing_area);
/* Signal handler */
g_signal_connect_swapped(G_OBJECT(view->drawing_area),
"button_press_event",
G_CALLBACK(button_press_event_popup_menu),
menu);
#endif
}
int
main (int argc,
char *argv[])
{
gint major, minor;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GtkWidget *button;
/*
* Init GTK.
*/
gtk_init (&argc, &argv);
/*
* Init GdkGLExt.
*/
gdk_gl_init (&argc, &argv);
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version (&major, &minor);
g_print ("\nOpenGL extension version - %d.%d\n",
major, minor);
/*
* Configure OpenGL-capable visual.
*/
/* Try double-buffered visual */
glconfig = gdk_gl_config_new (&config_attributes[0]);
if (glconfig == NULL)
{
g_print ("*** Cannot find the double-buffered visual.\n");
g_print ("*** Trying single-buffered visual.\n");
/* Try single-buffered visual */
glconfig = gdk_gl_config_new (&config_attributes[1]);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
}
examine_gl_config_attrib (glconfig);
/*
* Top-level window.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "low-level");
/*
* If window manager doesn't watch the WM_COLORMAP_WINDOWS property on
* the top-level window, we have to set OpenGL window's colormap to the
* top-level window.
*/
gtk_widget_set_colormap (window,
gdk_gl_config_get_colormap (glconfig));
/* Get automatically redrawn if any of their children changed allocation. */
gtk_container_set_reallocate_redraws (GTK_CONTAINER (window), TRUE);
g_signal_connect (G_OBJECT (window), "delete_event",
G_CALLBACK (gtk_main_quit), NULL);
/*
* VBox.
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/*
* Drawing area for drawing OpenGL scene.
*/
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 200, 200);
/* Set OpenGL-capable colormap. */
gtk_widget_set_colormap (drawing_area,
gdk_gl_config_get_colormap (glconfig));
/* Disable backing store feature of the widget. */
gtk_widget_set_double_buffered (drawing_area, FALSE);
g_signal_connect_after (G_OBJECT (drawing_area), "realize",
G_CALLBACK (realize), NULL);
g_signal_connect (G_OBJECT (drawing_area), "size_allocate",
G_CALLBACK (size_allocate), NULL);
g_signal_connect (G_OBJECT (drawing_area), "configure_event",
G_CALLBACK (configure_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "expose_event",
G_CALLBACK (expose_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "unrealize",
G_CALLBACK (unrealize), NULL);
gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show (drawing_area);
/*
* Simple quit button.
*/
button = gtk_button_new_with_label ("Quit");
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (gtk_main_quit), NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/*
* Show window.
*/
gtk_widget_show (window);
/*
* Main loop.
*/
/* Destroy the GLX context explicitly when application is terminated. */
gtk_quit_add_destroy (gtk_main_level () + 1,
GTK_OBJECT (drawing_area));
gtk_main ();
return 0;
}
int
main (int argc,
char *argv[])
{
GdkGLConfig *glconfig;
gint major, minor;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GtkWidget *button;
/*
* Init GTK.
*/
gtk_init (&argc, &argv);
/*
* Init GtkGLExt.
*/
gtk_gl_init (&argc, &argv);
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version (&major, &minor);
g_print ("\nOpenGL extension version - %d.%d\n\n",
major, minor);
/*
* Configure OpenGL-capable visual.
*/
/* Try double-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH |
GDK_GL_MODE_DOUBLE);
if (glconfig == NULL)
{
g_print ("*** Cannot find the double-buffered visual.\n");
g_print ("*** Trying single-buffered visual.\n");
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
}
/*
* GLX extensions.
*/
if (!gdk_x11_gl_query_glx_extension (glconfig, "GLX_SGIX_fbconfig"))
{
g_print ("GLX_SGIX_fbconfig extension is not supported.\n");
exit (1);
}
GetFBConfigFromVisualSGIX =
(GLXFBConfigSGIX (APIENTRY *)(Display*, XVisualInfo*))
gdk_gl_get_proc_address ("glXGetFBConfigFromVisualSGIX");
if (!gdk_x11_gl_query_glx_extension (glconfig, "GLX_SGIX_pbuffer"))
{
g_print ("GLX_SGIX_pbuffer extension is not supported.\n");
exit (1);
}
CreateGLXPbufferSGIX =
(GLXPbufferSGIX (APIENTRY *)(Display*, GLXFBConfigSGIX, unsigned int, unsigned int, int*))
gdk_gl_get_proc_address ("glXCreateGLXPbufferSGIX");
DestroyGLXPbufferSGIX =
(void (APIENTRY *)(Display*, GLXPbufferSGIX))
gdk_gl_get_proc_address ("glXDestroyGLXPbufferSGIX");
/*
* Top-level window.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "simple");
/* Get automatically redrawn if any of their children changed allocation. */
gtk_container_set_reallocate_redraws (GTK_CONTAINER (window), TRUE);
g_signal_connect (G_OBJECT (window), "delete_event",
G_CALLBACK (gtk_main_quit), NULL);
/*
* VBox.
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/*
* Drawing area for drawing OpenGL scene.
*/
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 200, 200);
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability (drawing_area,
glconfig,
NULL,
TRUE,
GDK_GL_RGBA_TYPE);
gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_set_events (drawing_area,
GDK_EXPOSURE_MASK |
GDK_BUTTON_PRESS_MASK);
g_signal_connect_after (G_OBJECT (drawing_area), "realize",
G_CALLBACK (realize), NULL);
g_signal_connect (G_OBJECT (drawing_area), "configure_event",
G_CALLBACK (configure_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "draw",
G_CALLBACK (draw), NULL);
gtk_widget_show (drawing_area);
/*
* Render button.
*/
button = gtk_button_new_with_label ("Render to file");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (render_to_file), drawing_area);
gtk_widget_show (button);
/*
* Simple quit button.
*/
button = gtk_button_new_with_label ("Quit");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (gtk_main_quit), NULL);
gtk_widget_show (button);
/*
* Show window.
*/
gtk_widget_show (window);
/*
* Main loop.
*/
gtk_main ();
return 0;
}
int
main(int argc,
char *argv[])
{
GdkGLConfig *glconfig;
gint major, minor;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GtkWidget *menu;
GtkWidget *button;
int i;
gboolean arg_count = FALSE;
/*
* Init GTK.
*/
gtk_init (&argc, &argv);
/*
* Init GtkGLExt.
*/
gtk_gl_init (&argc, &argv);
/*
* Parse arguments.
*/
for (i = 1; i < argc; i++)
{
if (arg_count)
rot_count = atoi (argv[i]);
if (strcmp (argv[i], "--help") == 0 ||
strcmp (argv[i], "-h") == 0)
{
g_print ("Usage: %s [--count num] [--no-anim] [--help]\n", argv[0]);
exit (0);
}
if (strcmp (argv[i], "--count") == 0)
arg_count = TRUE;
if (strcmp (argv[i], "--no-anim") == 0)
animate = FALSE;
}
/*
* Query OpenGL extension version.
*/
gdk_gl_query_version (&major, &minor);
g_print ("\nOpenGL extension version - %d.%d\n",
major, minor);
/*
* Configure OpenGL-capable visual.
*/
/* Try double-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH |
GDK_GL_MODE_DOUBLE);
if (glconfig == NULL)
{
g_print ("*** Cannot find the double-buffered visual.\n");
g_print ("*** Trying single-buffered visual.\n");
/* Try single-buffered visual */
glconfig = gdk_gl_config_new_by_mode (GDK_GL_MODE_RGB |
GDK_GL_MODE_DEPTH);
if (glconfig == NULL)
{
g_print ("*** No appropriate OpenGL-capable visual found.\n");
exit (1);
}
}
examine_gl_config_attrib (glconfig);
/*
* Top-level window.
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "logo");
/* Get automatically redrawn if any of their children changed allocation. */
gtk_container_set_reallocate_redraws (GTK_CONTAINER (window), TRUE);
g_signal_connect (G_OBJECT (window), "delete_event",
G_CALLBACK (gtk_main_quit), NULL);
/*
* VBox.
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (vbox);
/*
* Drawing area for drawing OpenGL scene.
*/
drawing_area = gtk_drawing_area_new ();
gtk_widget_set_size_request (drawing_area, 300, 300);
/* Set OpenGL-capability to the widget. */
gtk_widget_set_gl_capability (drawing_area,
glconfig,
NULL,
TRUE,
GDK_GL_RGBA_TYPE);
gtk_widget_add_events (drawing_area,
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON2_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_VISIBILITY_NOTIFY_MASK);
g_signal_connect_after (G_OBJECT (drawing_area), "realize",
G_CALLBACK (realize), NULL);
g_signal_connect (G_OBJECT (drawing_area), "configure_event",
G_CALLBACK (configure_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "expose_event",
G_CALLBACK (expose_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "button_press_event",
G_CALLBACK (button_press_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "motion_notify_event",
G_CALLBACK (motion_notify_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "map_event",
G_CALLBACK (map_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "unmap_event",
G_CALLBACK (unmap_event), NULL);
g_signal_connect (G_OBJECT (drawing_area), "visibility_notify_event",
G_CALLBACK (visibility_notify_event), NULL);
g_signal_connect_swapped (G_OBJECT (window), "key_press_event",
G_CALLBACK (key_press_event), drawing_area);
gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show (drawing_area);
/*
* Popup menu.
*/
menu = create_popup_menu (drawing_area);
/* Signal handler */
g_signal_connect_swapped (G_OBJECT (drawing_area), "button_press_event",
G_CALLBACK (button_press_event_popup_menu), menu);
/*
* Simple quit button.
*/
button = gtk_button_new_with_label ("Quit");
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (gtk_main_quit), NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/*
* Show window.
*/
gtk_widget_show (window);
/*
* Main loop.
*/
gtk_main ();
return 0;
}