GODOT IS OPEN SOURCE

1 files changed, 197 insertions, 0 deletions

diff --git a/platform/x11/context_gl_x11.cpp b/platform/x11/context_gl_x11.cpp
new file mode 100644
index 0000000000..12708f52e2
--- /dev/null
+++ b/platform/x11/context_gl_x11.cpp
@@ -0,0 +1,197 @@
+/*************************************************************************/
+/*  context_gl_x11.cpp                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "context_gl_x11.h"
+
+#ifdef X11_ENABLED
+#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED)
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <GL/glx.h>
+
+#define GLX_CONTEXT_MAJOR_VERSION_ARB		0x2091
+#define GLX_CONTEXT_MINOR_VERSION_ARB		0x2092
+
+typedef GLXContext (*GLXCREATECONTEXTATTRIBSARBPROC)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
+
+struct ContextGL_X11_Private { 
+
+	::GLXContext glx_context;
+};
+
+
+void ContextGL_X11::release_current() {
+
+	glXMakeCurrent(x11_display, None, NULL);
+}
+
+void ContextGL_X11::make_current() {
+
+	glXMakeCurrent(x11_display, x11_window, p->glx_context);
+}
+void ContextGL_X11::swap_buffers() {
+
+	glXSwapBuffers(x11_display,x11_window);
+}
+/*
+static GLWrapperFuncPtr wrapper_get_proc_address(const char* p_function) {
+
+	//print_line(String()+"getting proc of: "+p_function);
+	GLWrapperFuncPtr func=(GLWrapperFuncPtr)glXGetProcAddress( (const GLubyte*) p_function);
+	if (!func) {
+		print_line("Couldn't find function: "+String(p_function));
+	}
+
+	return func;
+
+}*/
+
+Error ContextGL_X11::initialize() {
+
+	
+	GLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB = NULL;
+	
+//	const char *extensions = glXQueryExtensionsString(x11_display, DefaultScreen(x11_display));
+	
+	glXCreateContextAttribsARB = (GLXCREATECONTEXTATTRIBSARBPROC)glXGetProcAddress((const GLubyte*)"glXCreateContextAttribsARB");
+	
+	ERR_FAIL_COND_V( !glXCreateContextAttribsARB, ERR_UNCONFIGURED );
+
+
+	static int visual_attribs[] = {
+	    GLX_RENDER_TYPE, GLX_RGBA_BIT,
+	    GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
+	    GLX_DOUBLEBUFFER, true,
+	    GLX_RED_SIZE, 1,
+	    GLX_GREEN_SIZE, 1,
+	    GLX_BLUE_SIZE, 1,
+	    GLX_DEPTH_SIZE,0,
+	    None 
+	};
+
+	int fbcount;
+	GLXFBConfig *fbc = glXChooseFBConfig(x11_display, DefaultScreen(x11_display), visual_attribs, &fbcount);
+	ERR_FAIL_COND_V(!fbc,ERR_UNCONFIGURED);
+	
+	XVisualInfo *vi = glXGetVisualFromFBConfig(x11_display, fbc[0]);
+
+	XSetWindowAttributes swa;
+
+	swa.colormap = XCreateColormap(x11_display, RootWindow(x11_display, vi->screen), vi->visual, AllocNone);
+	swa.border_pixel = 0;
+	swa.event_mask = StructureNotifyMask;
+
+	/*
+	char* windowid = getenv("GODOT_WINDOWID");
+	if (windowid) {
+
+		//freopen("/home/punto/stdout", "w", stdout);
+		//reopen("/home/punto/stderr", "w", stderr);
+		x11_window = atol(windowid);
+	} else {
+	*/
+		x11_window = XCreateWindow(x11_display, RootWindow(x11_display, vi->screen), 0, 0, OS::get_singleton()->get_video_mode().width, OS::get_singleton()->get_video_mode().height, 0, vi->depth, InputOutput, vi->visual, CWBorderPixel|CWColormap|CWEventMask, &swa);
+		ERR_FAIL_COND_V(!x11_window,ERR_UNCONFIGURED);
+		XMapWindow(x11_display, x11_window);
+		while(true) {
+			// wait for mapnotify (window created)
+			XEvent e;
+			XNextEvent(x11_display, &e);
+			if (e.type == MapNotify)
+				break;
+		}
+		//};
+
+	if (!opengl_3_context) {
+		//oldstyle context:
+		p->glx_context = glXCreateContext(x11_display, vi, 0, GL_TRUE);
+	} else {
+		static int context_attribs[] = {
+			GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
+			GLX_CONTEXT_MINOR_VERSION_ARB, 0,
+			None
+		};
+	
+		p->glx_context = glXCreateContextAttribsARB(x11_display, fbc[0], NULL, true, context_attribs);
+		ERR_FAIL_COND_V(!p->glx_context,ERR_UNCONFIGURED);
+	}
+
+	glXMakeCurrent(x11_display, x11_window, p->glx_context);
+
+	/*
+	glWrapperInit(wrapper_get_proc_address);
+	glFlush();
+	
+	glXSwapBuffers(x11_display,x11_window);
+*/
+	//glXMakeCurrent(x11_display, None, NULL);
+
+	return OK;
+}
+
+int ContextGL_X11::get_window_width() {
+
+	XWindowAttributes xwa;
+	XGetWindowAttributes(x11_display,x11_window,&xwa);
+	
+	return xwa.width;
+}
+int ContextGL_X11::get_window_height() {
+	XWindowAttributes xwa;
+	XGetWindowAttributes(x11_display,x11_window,&xwa);
+	
+	return xwa.height;
+
+}
+
+
+ContextGL_X11::ContextGL_X11(::Display *p_x11_display,::Window &p_x11_window,const OS::VideoMode& p_default_video_mode,bool p_opengl_3_context) : x11_window(p_x11_window) {
+
+	default_video_mode=p_default_video_mode;
+	x11_display=p_x11_display;
+	
+	opengl_3_context=p_opengl_3_context;
+	
+	double_buffer=false;
+	direct_render=false;
+	glx_minor=glx_major=0;
+	p = memnew( ContextGL_X11_Private );
+	p->glx_context=0;
+}
+
+
+ContextGL_X11::~ContextGL_X11() {
+
+	memdelete( p );
+}
+
+
+#endif
+#endif