--- /dev/null
+/*
+Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
+
+This file is part of the 3dengfx, realtime visualization system.
+
+3dengfx 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.
+
+3dengfx 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 3dengfx; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+/* OpenGL through GTK
+ *
+ * Author: John Tsiombikas 2004
+ */
+
+#include "3dengfx_config.h"
+
+#if GFX_LIBRARY == GTK
+
+#include <stdlib.h>
+#include "init.hpp"
+#include "gfx_library.h"
+#include "3dengfx/3denginefx.hpp"
+#include "common/err_msg.h"
+
+GtkWidget *gl_window;
+GtkWidget *gl_drawing_area;
+GdkGLConfig *glconfig;
+
+bool fxwt::init_graphics(GraphicsInitParameters *gparams) {
+ info("Initializing GTK and GTK-GLext");
+
+ char *argv[] = {"foo", (char*)0};
+ int argc = 1;
+ gtk_gl_init(&argc, (char***)&argv);
+
+ info("Trying to set video mode %dx%dx%d, d:%d s:%d %s",gparams->x, gparams->y, gparams->bpp, gparams->depth_bits, gparams->stencil_bits, gparams->fullscreen ? "fullscreen" : "windowed");
+
+ int rbits, gbits, bbits;
+ switch(gparams->bpp) {
+ case 32:
+ rbits = gbits = bbits = 8;
+ break;
+
+ case 16:
+ rbits = bbits = 6;
+ gbits = 5;
+ break;
+
+ default:
+ error("%s: Tried to set unsupported pixel format: %d bpp", __func__, gparams->bpp);
+ return false;
+ }
+
+ int gdkgl_attr[] = {
+ GDK_GL_USE_GL, GDK_GL_DOUBLEBUFFER, GDK_GL_RGBA,
+ GDK_GL_RED_SIZE, rbits,
+ GDK_GL_GREEN_SIZE, gbits,
+ GDK_GL_BLUE_SIZE, bbits,
+ GDK_GL_DEPTH_SIZE, gparams->depth_bits,
+ GDK_GL_STENCIL_SIZE, gparams->stencil_bits,
+ GDK_GL_ATTRIB_LIST_NONE
+ };
+
+ //GdkGLConfig *glconfig;
+ if(!(glconfig = gdk_gl_config_new(gdkgl_attr))) {
+ if(gparams->depth_bits == 32) gdkgl_attr[10] = 24;
+
+ if(!(glconfig = gdk_gl_config_new(gdkgl_attr))) {
+ error("%s: Could not set requested video mode", __func__);
+ }
+ }
+
+ // now check the actual video mode we got
+ int arbits, agbits, abbits, azbits, astencilbits;
+ gdk_gl_config_get_attrib(glconfig, GDK_GL_RED_SIZE, &arbits);
+ gdk_gl_config_get_attrib(glconfig, GDK_GL_GREEN_SIZE, &agbits);
+ gdk_gl_config_get_attrib(glconfig, GDK_GL_BLUE_SIZE, &abbits);
+ gdk_gl_config_get_attrib(glconfig, GDK_GL_DEPTH_SIZE, &azbits);
+ gdk_gl_config_get_attrib(glconfig, GDK_GL_STENCIL_SIZE, &astencilbits);
+
+ info("Initialized video mode:");
+ info(" bpp: %d (%d%d%d)", arbits + agbits + abbits, arbits, agbits, abbits);
+ info("zbuffer: %d", azbits);
+ info("stencil: %d", astencilbits);
+
+ /* if the dont_care_flags does not contain DONT_CARE_BPP and our color bits
+ * does not match, we should return failure, however we test against
+ * the difference allowing a +/-1 difference in order to allow for 16bpp
+ * formats of either 565 or 555 and consider them equal.
+ */
+ if(!(gparams->dont_care_flags & DONT_CARE_BPP) && abs(arbits - rbits) > 1 && abs(agbits - gbits) > 1 && abs(abbits - bbits) > 1) {
+ error("%s: Could not set requested exact bpp mode", __func__);
+ return false;
+ }
+
+ // now if we don't have DONT_CARE_DEPTH in the dont_care_flags check for
+ // exact depth buffer format, however consider 24 and 32 bit the same
+ if(!(gparams->dont_care_flags & DONT_CARE_DEPTH) && azbits != gparams->depth_bits) {
+ if(!(gparams->depth_bits == 32 && azbits == 24 || gparams->depth_bits == 24 && azbits == 32)) {
+ error("%s: Could not set requested exact zbuffer depth", __func__);
+ return false;
+ }
+ }
+
+ // if we don't have DONT_CARE_STENCIL make sure we have the stencil format
+ // that was asked.
+ if(!(gparams->dont_care_flags & DONT_CARE_STENCIL) && astencilbits != gparams->stencil_bits) {
+ error("%s: Could not set exact stencil format", __func__);
+ return false;
+ }
+
+ //gl_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+ //gtk_window_set_title(gtk_window(gl_window), "3dengfx visualization window");
+ //gtk_container_set_reallocate_redraws(gtk_container(gl_window), TRUE);
+ //g_signal_connect(g_object(gl_window), "delete_event", g_callback(gtk_main_quit), NULL);
+
+ gl_drawing_area = gtk_drawing_area_new();
+ gtk_widget_set_size_request(gl_drawing_area, gparams->x, gparams->y);
+
+ if(!gtk_widget_set_gl_capability(gl_drawing_area, glconfig, 0, TRUE, GDK_GL_RGBA_TYPE)) {
+ error("%s: gtk_widget_set_gl_capability() failed", __func__);
+ return false;
+ }
+
+ extern void set_gtk_callbacks(GtkWidget*);
+ set_gtk_callbacks(gl_drawing_area);
+
+ //gtk_container_add(gtk_container(gl_window), gl_drawing_area);
+ //gtk_widget_show(gl_drawing_area);
+ //gtk_widget_show(gl_window);
+
+ return true;
+}
+
+void fxwt::destroy_graphics() {
+ info("Shutting down GTK+");
+}
+
+#endif // GTK
projects / summerhack / blobdiff