mirror of
https://github.com/id-Software/GtkRadiant.git
synced 2026-03-20 08:59:32 +01:00
The GtkRadiant sources as originally released under the GPL license.
This commit is contained in:
Travis Bradshaw
274
libs/gtkutil/glwidget.cpp
Normal file
274
libs/gtkutil/glwidget.cpp
Normal file
@@ -0,0 +1,274 @@
|
||||
/*
|
||||
Copyright (C) 2001-2006, William Joseph.
|
||||
All Rights Reserved.
|
||||
|
||||
This file is part of GtkRadiant.
|
||||
|
||||
GtkRadiant is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
GtkRadiant is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GtkRadiant; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
// OpenGL widget based on GtkGLExt
|
||||
|
||||
#include "glwidget.h"
|
||||
|
||||
#include "debugging/debugging.h"
|
||||
|
||||
#include "igl.h"
|
||||
|
||||
#include <gtk/gtkdrawingarea.h>
|
||||
#include <gtk/gtkglwidget.h>
|
||||
|
||||
#include "pointer.h"
|
||||
|
||||
void (*GLWidget_sharedContextCreated)() = 0;
|
||||
void (*GLWidget_sharedContextDestroyed)() = 0;
|
||||
|
||||
|
||||
typedef int* attribs_t;
|
||||
struct config_t
|
||||
{
|
||||
const char* name;
|
||||
attribs_t attribs;
|
||||
};
|
||||
typedef const config_t* configs_iterator;
|
||||
|
||||
int config_rgba32[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 24,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 16,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
const config_t configs[] = {
|
||||
{
|
||||
"colour-buffer = 32bpp, depth-buffer = none",
|
||||
config_rgba32,
|
||||
},
|
||||
{
|
||||
"colour-buffer = 16bpp, depth-buffer = none",
|
||||
config_rgba,
|
||||
}
|
||||
};
|
||||
|
||||
GdkGLConfig* glconfig_new()
|
||||
{
|
||||
GdkGLConfig* glconfig = 0;
|
||||
|
||||
for(configs_iterator i = configs, end = configs + 2; i != end; ++i)
|
||||
{
|
||||
glconfig = gdk_gl_config_new((*i).attribs);
|
||||
if(glconfig != 0)
|
||||
{
|
||||
globalOutputStream() << "OpenGL window configuration: " << (*i).name << "\n";
|
||||
return glconfig;
|
||||
}
|
||||
}
|
||||
|
||||
globalOutputStream() << "OpenGL window configuration: colour-buffer = auto, depth-buffer = none\n";
|
||||
return gdk_gl_config_new_by_mode((GdkGLConfigMode)(GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE));
|
||||
}
|
||||
|
||||
int config_rgba32_depth32[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 24,
|
||||
GDK_GL_DEPTH_SIZE, 32,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba32_depth24[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 24,
|
||||
GDK_GL_DEPTH_SIZE, 24,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba32_depth16[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 24,
|
||||
GDK_GL_DEPTH_SIZE, 16,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba32_depth[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 24,
|
||||
GDK_GL_DEPTH_SIZE, 1,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba_depth16[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 16,
|
||||
GDK_GL_DEPTH_SIZE, 16,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
int config_rgba_depth[] = {
|
||||
GDK_GL_RGBA,
|
||||
GDK_GL_DOUBLEBUFFER,
|
||||
GDK_GL_BUFFER_SIZE, 16,
|
||||
GDK_GL_DEPTH_SIZE, 1,
|
||||
GDK_GL_ATTRIB_LIST_NONE,
|
||||
};
|
||||
|
||||
const config_t configs_with_depth[] =
|
||||
{
|
||||
{
|
||||
"colour-buffer = 32bpp, depth-buffer = 32bpp",
|
||||
config_rgba32_depth32,
|
||||
},
|
||||
{
|
||||
"colour-buffer = 32bpp, depth-buffer = 24bpp",
|
||||
config_rgba32_depth24,
|
||||
},
|
||||
{
|
||||
"colour-buffer = 32bpp, depth-buffer = 16bpp",
|
||||
config_rgba32_depth16,
|
||||
},
|
||||
{
|
||||
"colour-buffer = 32bpp, depth-buffer = auto",
|
||||
config_rgba32_depth,
|
||||
},
|
||||
{
|
||||
"colour-buffer = 16bpp, depth-buffer = 16bpp",
|
||||
config_rgba_depth16,
|
||||
},
|
||||
{
|
||||
"colour-buffer = auto, depth-buffer = auto",
|
||||
config_rgba_depth,
|
||||
},
|
||||
};
|
||||
|
||||
GdkGLConfig* glconfig_new_with_depth()
|
||||
{
|
||||
GdkGLConfig* glconfig = 0;
|
||||
|
||||
for(configs_iterator i = configs_with_depth, end = configs_with_depth + 6; i != end; ++i)
|
||||
{
|
||||
glconfig = gdk_gl_config_new((*i).attribs);
|
||||
if(glconfig != 0)
|
||||
{
|
||||
globalOutputStream() << "OpenGL window configuration: " << (*i).name << "\n";
|
||||
return glconfig;
|
||||
}
|
||||
}
|
||||
|
||||
globalOutputStream() << "OpenGL window configuration: colour-buffer = auto, depth-buffer = auto (fallback)\n";
|
||||
return gdk_gl_config_new_by_mode((GdkGLConfigMode)(GDK_GL_MODE_RGBA | GDK_GL_MODE_DOUBLE | GDK_GL_MODE_DEPTH));
|
||||
}
|
||||
|
||||
unsigned int g_context_count = 0;
|
||||
|
||||
namespace
|
||||
{
|
||||
GtkWidget* g_shared = 0;
|
||||
}
|
||||
|
||||
gint glwidget_context_created(GtkWidget* widget, gpointer data)
|
||||
{
|
||||
if(++g_context_count == 1)
|
||||
{
|
||||
g_shared = widget;
|
||||
gtk_widget_ref(g_shared);
|
||||
|
||||
glwidget_make_current(g_shared);
|
||||
GlobalOpenGL().contextValid = true;
|
||||
|
||||
GLWidget_sharedContextCreated();
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
gint glwidget_context_destroyed(GtkWidget* widget, gpointer data)
|
||||
{
|
||||
if(--g_context_count == 0)
|
||||
{
|
||||
GlobalOpenGL().contextValid = false;
|
||||
|
||||
GLWidget_sharedContextDestroyed();
|
||||
|
||||
gtk_widget_unref(g_shared);
|
||||
g_shared = 0;
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
gboolean glwidget_enable_gl(GtkWidget* widget, GtkWidget* widget2, gpointer data)
|
||||
{
|
||||
if(widget2 == 0 && !gtk_widget_is_gl_capable(widget))
|
||||
{
|
||||
GdkGLConfig* glconfig = (g_object_get_data(G_OBJECT(widget), "zbuffer")) ? glconfig_new_with_depth() : glconfig_new();
|
||||
ASSERT_MESSAGE(glconfig != 0, "failed to create OpenGL config");
|
||||
|
||||
gtk_widget_set_gl_capability(widget, glconfig, g_shared != 0 ? gtk_widget_get_gl_context(g_shared) : 0, TRUE, GDK_GL_RGBA_TYPE);
|
||||
|
||||
gtk_widget_realize(widget);
|
||||
if(g_shared == 0)
|
||||
{
|
||||
g_shared = widget;
|
||||
}
|
||||
|
||||
// free glconfig?
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
GtkWidget* glwidget_new(gboolean zbuffer)
|
||||
{
|
||||
GtkWidget* widget = gtk_drawing_area_new();
|
||||
|
||||
g_object_set_data(G_OBJECT(widget), "zbuffer", gint_to_pointer(zbuffer));
|
||||
|
||||
g_signal_connect(G_OBJECT(widget), "hierarchy-changed", G_CALLBACK(glwidget_enable_gl), 0);
|
||||
|
||||
g_signal_connect(G_OBJECT(widget), "realize", G_CALLBACK(glwidget_context_created), 0);
|
||||
g_signal_connect(G_OBJECT(widget), "unrealize", G_CALLBACK(glwidget_context_destroyed), 0);
|
||||
|
||||
return widget;
|
||||
}
|
||||
|
||||
void glwidget_destroy_context (GtkWidget *widget)
|
||||
{
|
||||
}
|
||||
|
||||
void glwidget_create_context (GtkWidget *widget)
|
||||
{
|
||||
}
|
||||
|
||||
void glwidget_swap_buffers (GtkWidget *widget)
|
||||
{
|
||||
GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget);
|
||||
gdk_gl_drawable_swap_buffers (gldrawable);
|
||||
}
|
||||
|
||||
gboolean glwidget_make_current (GtkWidget *widget)
|
||||
{
|
||||
GdkGLContext *glcontext = gtk_widget_get_gl_context (widget);
|
||||
GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (widget);
|
||||
return gdk_gl_drawable_gl_begin (gldrawable, glcontext);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user