X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2F3dengfx%2Fsrc%2Ffxwt%2Finit_gtk.cpp;fp=src%2F3dengfx%2Fsrc%2Ffxwt%2Finit_gtk.cpp;h=279bdef82c0819695c74f86b96e4a0b9c7dafedd;hb=6e23259dbabaeb1711a2a5ca25b9cb421f693759;hp=0000000000000000000000000000000000000000;hpb=fe068fa879814784c45e0cb2e65dac489e8f5594;p=summerhack diff --git a/src/3dengfx/src/fxwt/init_gtk.cpp b/src/3dengfx/src/fxwt/init_gtk.cpp new file mode 100644 index 0000000..279bdef --- /dev/null +++ b/src/3dengfx/src/fxwt/init_gtk.cpp @@ -0,0 +1,150 @@ +/* +Copyright 2004 John Tsiombikas + +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 +#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