2002-11-15 05:58:57 -05:00
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/*
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* Copyright (c) 2002 Light Weight Java Game Library Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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2002-11-15 06:00:19 -05:00
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* $Id$
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2002-11-15 05:58:57 -05:00
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*
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2002-11-15 06:10:32 -05:00
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* Linux specific library for display handling.
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2002-11-15 05:58:57 -05:00
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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2002-11-15 06:00:19 -05:00
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* @version $Revision$
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2002-11-15 05:58:57 -05:00
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*/
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2002-12-11 02:16:31 -05:00
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#include "extgl.h"
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2002-11-15 05:40:55 -05:00
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/xf86vmode.h>
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#include <X11/Xutil.h>
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#include <stdio.h>
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2002-12-22 15:58:25 -05:00
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#include <stdlib.h>
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2002-11-15 05:40:55 -05:00
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#include <jni.h>
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#include "org_lwjgl_Display.h"
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Display * disp;
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int screen;
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2002-11-16 15:10:42 -05:00
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int current_fullscreen;
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2002-11-20 05:33:37 -05:00
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int current_focused;
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2002-11-15 05:40:55 -05:00
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Window win;
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2002-11-28 16:49:11 -05:00
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int win_width;
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int win_height;
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2002-11-15 05:40:55 -05:00
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XF86VidModeModeInfo **avail_modes;
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XVisualInfo * vis_info;
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2002-12-23 06:31:32 -05:00
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int gl_loaded = 0;
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2002-11-15 05:40:55 -05:00
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2002-12-22 15:58:25 -05:00
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struct pixelformat {
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2002-12-23 06:31:32 -05:00
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int bpp;
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2002-12-22 15:58:25 -05:00
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int depth;
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int alpha;
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int stencil;
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};
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2002-12-23 06:31:32 -05:00
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int fillFormat(struct pixelformat *formats, int index, int bpp, int depth, int alpha, int stencil) {
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for (int i = 0; i < index; i++)
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if (formats[i].bpp == bpp &&
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formats[i].depth == depth &&
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formats[i].alpha == alpha &&
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formats[i].stencil == stencil)
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return 0;
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formats[index].bpp = bpp;
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formats[index].depth = depth;
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formats[index].stencil = stencil;
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formats[index].alpha = alpha;
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return 1;
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}
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struct pixelformat *getGLXAvailablePixelFormats(Display *disp, int screen, int *length) {
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if (extgl_Extensions.glx.GLX13 == 1) {
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int num_formats;
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int attriblist[] = {GLX_DOUBLEBUFFER, True,
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GLX_STEREO, False,
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GLX_RENDER_TYPE, GLX_RGBA_BIT,
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GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
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GLX_CONFIG_CAVEAT, GLX_NONE,
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None};
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GLXFBConfig *configs = glXChooseFBConfig(disp, screen, attriblist, &num_formats);
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struct pixelformat *formats = (struct pixelformat *)malloc(num_formats*sizeof(struct pixelformat));
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*length = 0;
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for (int i = 0; i < num_formats; i++) {
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int bpp, depth, alpha, stencil;
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int val;
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_RED_SIZE, &val) != 0) {
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free(formats);
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return NULL;
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}
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bpp = val;
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_GREEN_SIZE, &val) != 0) {
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free(formats);
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return NULL;
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}
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bpp += val;
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_BLUE_SIZE, &val) != 0) {
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free(formats);
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return NULL;
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}
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bpp += val;
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_ALPHA_SIZE, &alpha) != 0) {
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free(formats);
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return NULL;
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}
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_DEPTH_SIZE, &depth) != 0) {
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free(formats);
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return NULL;
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}
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if (glXGetFBConfigAttrib(disp, configs[i], GLX_STENCIL_SIZE, &stencil) != 0) {
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free(formats);
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return NULL;
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}
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if (fillFormat(formats, *length, bpp, depth, alpha, stencil) == 1)
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(*length)++;
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}
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return formats;
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}
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return NULL;
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}
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XVisualInfo *chooseVisual(Display *disp, int screen, int bpp, int depth, int alpha, int stencil) {
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int bpe;
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switch (bpp) {
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case 32:
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case 24:
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bpe = 8;
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break;
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case 16:
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bpe = 4;
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break;
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default:
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return JNI_FALSE;
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}
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int attriblist[] = { GLX_RGBA,
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GLX_DOUBLEBUFFER,
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GLX_DEPTH_SIZE, depth,
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GLX_RED_SIZE, bpe,
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GLX_GREEN_SIZE, bpe,
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GLX_BLUE_SIZE, bpe,
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GLX_ALPHA_SIZE, alpha,
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GLX_STENCIL_SIZE, stencil,
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None };
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return glXChooseVisual(disp, screen, attriblist);
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}
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struct pixelformat *getAvailablePixelFormats(Display *disp, int screen, int *length) {
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struct pixelformat *formats = getGLXAvailablePixelFormats(disp, screen, length);
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if (formats != NULL)
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return formats;
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*length = 16;
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formats = (struct pixelformat *)malloc((*length)*sizeof(struct pixelformat));
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*length = 0;
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for (int bpp = 16; bpp <= 24; bpp += 8)
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for (int depth = 16; depth <= 24; depth += 8)
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for (int alpha = 0; alpha <= 8; alpha += 8)
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for (int stencil = 0; stencil <= 8; stencil += 8) {
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XVisualInfo * visual = chooseVisual(disp, screen, bpp, depth, alpha, stencil);
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if (visual != NULL) {
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if (fillFormat(formats, *length, bpp, depth, alpha, stencil) == 1)
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(*length)++;
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XFree(visual);
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}
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}
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2002-12-22 15:58:25 -05:00
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return formats;
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}
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2002-11-15 05:40:55 -05:00
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void waitMapped(Display *disp, Window win) {
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XEvent event;
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do {
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XMaskEvent(disp, StructureNotifyMask, &event);
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} while ((event.type != MapNotify) || (event.xmap.event != win));
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}
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2002-11-20 05:33:37 -05:00
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int isFocused(void) {
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XEvent event;
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while (XCheckMaskEvent(disp, EnterWindowMask | LeaveWindowMask, &event)) {
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if (event.type == EnterNotify)
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current_focused = 1;
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else if (event.type == LeaveNotify)
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current_focused = 0;
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}
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return current_focused;
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}
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2002-12-23 06:31:32 -05:00
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int loadGL(Display *disp, int screen) {
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if (gl_loaded == 1)
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return JNI_TRUE;
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if (extgl_Open(disp, screen) != 0) {
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#ifdef _DEBUG
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printf("Could not load gl libs\n");
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#endif
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return JNI_FALSE;
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}
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gl_loaded = 1;
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return JNI_TRUE;
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}
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2002-12-28 05:41:17 -05:00
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void closeGL(void) {
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gl_loaded = 0;
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extgl_Close();
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}
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2002-11-15 05:40:55 -05:00
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int getDisplayModes(Display *disp, int screen, int *num_modes, XF86VidModeModeInfo ***avail_modes) {
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2002-11-19 03:50:57 -05:00
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int event_base, error_base, xvid_ver, xvid_rev;
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2002-11-15 05:40:55 -05:00
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if (!XF86VidModeQueryExtension(disp, &event_base, &error_base)) {
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#ifdef _DEBUG
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2002-11-20 05:33:37 -05:00
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printf("XF86VidMode extension not available\n");
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2002-11-15 05:40:55 -05:00
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#endif
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return 0;
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}
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XF86VidModeQueryVersion(disp, &xvid_ver, &xvid_rev);
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#ifdef _DEBUG
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2002-11-20 05:33:37 -05:00
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printf("XF86VidMode extension version %i.%i\n", xvid_ver, xvid_rev);
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2002-11-15 05:40:55 -05:00
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#endif
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XF86VidModeGetAllModeLines(disp, screen, num_modes, avail_modes);
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return 1;
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}
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2002-12-19 11:35:35 -05:00
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_nCreate(JNIEnv * env, jclass clazz, jint width, jint height, jint bpp, jint freq, jint alpha_bits, jint depth_bits, jint stencil_bits, jboolean fullscreen) {
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2002-11-15 05:40:55 -05:00
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Window root_win;
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XSetWindowAttributes attribs;
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Colormap cmap;
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int attribmask;
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2002-11-25 22:30:41 -05:00
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int num_modes, i;
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2002-11-28 16:49:11 -05:00
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win_width = width;
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win_height = height;
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2002-11-16 15:10:42 -05:00
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current_fullscreen = fullscreen;
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2002-11-20 05:33:37 -05:00
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current_focused = 0;
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2002-11-15 05:40:55 -05:00
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disp = XOpenDisplay(NULL);
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if (disp == NULL) {
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#ifdef _DEBUG
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printf("Could not open X connection\n");
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#endif
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return JNI_FALSE;
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}
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screen = DefaultScreen(disp);
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2002-12-23 06:31:32 -05:00
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if (loadGL(disp, screen) != JNI_TRUE) {
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2002-11-17 11:14:53 -05:00
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#ifdef _DEBUG
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2002-12-23 06:31:32 -05:00
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printf("Could not load GL libs\n");
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2002-11-17 11:14:53 -05:00
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#endif
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return JNI_FALSE;
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}
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2002-12-23 06:31:32 -05:00
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if (!getDisplayModes(disp, screen, &num_modes, &avail_modes)) {
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XCloseDisplay(disp);
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2002-12-11 02:26:49 -05:00
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#ifdef _DEBUG
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2002-12-23 06:31:32 -05:00
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printf("Could not get display modes\n");
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2002-12-11 02:26:49 -05:00
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#endif
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return JNI_FALSE;
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}
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2002-12-23 06:31:32 -05:00
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root_win = RootWindow(disp, screen);
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vis_info = chooseVisual(disp, screen, bpp, depth_bits, alpha_bits, stencil_bits);
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2002-11-25 22:30:41 -05:00
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if (vis_info == NULL) {
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2002-11-17 11:14:53 -05:00
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XCloseDisplay(disp);
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2002-11-15 05:40:55 -05:00
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#ifdef _DEBUG
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printf("Could not choose glx visual\n");
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#endif
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return JNI_FALSE;
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}
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cmap = XCreateColormap(disp, root_win, vis_info->visual, AllocNone);
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attribs.colormap = cmap;
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2002-11-20 05:33:37 -05:00
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attribs.event_mask = StructureNotifyMask | EnterWindowMask | LeaveWindowMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
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2002-11-15 05:40:55 -05:00
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attribs.background_pixel = 0xFF000000;
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attribmask = CWColormap | CWBackPixel | CWEventMask;
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if (fullscreen) {
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attribmask |= CWOverrideRedirect;
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attribs.override_redirect = True;
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}
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win = XCreateWindow(disp, root_win, 0, 0, width, height, 0, vis_info->depth, InputOutput, vis_info->visual, attribmask, &attribs);
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#ifdef _DEBUG
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printf("Created window\n");
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#endif
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2002-11-20 05:33:37 -05:00
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XMapRaised(disp, win);
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waitMapped(disp, win);
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2002-11-15 05:40:55 -05:00
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if (fullscreen) {
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for ( i = 0; i < num_modes; ++i ) {
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#ifdef _DEBUG
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printf("Mode %d: %dx%d\n", i, avail_modes[i]->hdisplay, avail_modes[i]->vdisplay);
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#endif
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if (avail_modes[i]->hdisplay == width && avail_modes[i]->vdisplay == height) {
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if (!XF86VidModeSwitchToMode(disp, screen, avail_modes[i])) {
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2002-11-17 11:14:53 -05:00
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XFree(vis_info);
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XFree(avail_modes);
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XDestroyWindow(disp, win);
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XCloseDisplay(disp);
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2002-11-15 05:40:55 -05:00
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#ifdef _DEBUG
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printf("Could not switch mode\n");
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#endif
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return JNI_FALSE;
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}
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}
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}
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XF86VidModeSetViewPort(disp, screen, 0, 0);
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}
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XClearWindow(disp, win);
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XSync(disp, True);
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2002-11-20 05:33:37 -05:00
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isFocused();
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2002-11-15 05:40:55 -05:00
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return JNI_TRUE;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_Display_nDestroy(JNIEnv * env, jclass clazz) {
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XDestroyWindow(disp, win);
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2002-11-16 15:10:42 -05:00
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if (current_fullscreen) {
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if (!XF86VidModeSwitchToMode(disp, screen, avail_modes[0])) {
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2002-11-15 05:40:55 -05:00
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#ifdef _DEBUG
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2002-11-16 15:10:42 -05:00
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printf("Could not switch mode\n");
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2002-11-15 05:40:55 -05:00
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#endif
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2002-11-16 15:10:42 -05:00
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}
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2002-11-15 05:40:55 -05:00
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}
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2002-11-17 11:14:53 -05:00
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XFree(avail_modes);
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2002-11-15 05:40:55 -05:00
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XFree(vis_info);
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XCloseDisplay(disp);
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2002-12-28 05:41:17 -05:00
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closeGL();
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2002-11-15 05:40:55 -05:00
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#ifdef _DEBUG
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printf("Closed X connection\n");
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#endif
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}
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/*
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* Class: org_lwjgl_Display
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* Method: getAvailableDisplayModes
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* Signature: ()[Lorg/lwjgl/DisplayMode;
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*/
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JNIEXPORT jobjectArray JNICALL Java_org_lwjgl_Display_getAvailableDisplayModes
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(JNIEnv * env, jclass clazz)
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{
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int num_modes, i;
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Display *disp = XOpenDisplay(NULL);
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int screen = DefaultScreen(disp);
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XF86VidModeModeInfo **avail_modes;
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if (disp == NULL) {
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#ifdef _DEBUG
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printf("Could not open X connection\n");
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#endif
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2002-12-23 06:31:32 -05:00
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XCloseDisplay(disp);
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2002-11-15 05:40:55 -05:00
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return NULL;
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}
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2002-12-23 06:31:32 -05:00
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if (loadGL(disp, screen) != JNI_TRUE) {
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#ifdef _DEBUG
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printf("Could not load GL\n");
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#endif
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XCloseDisplay(disp);
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return JNI_FALSE;
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}
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2002-11-15 05:40:55 -05:00
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if (!getDisplayModes(disp, screen, &num_modes, &avail_modes)) {
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#ifdef _DEBUG
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printf("Could not get display modes\n");
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#endif
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2002-12-23 06:31:32 -05:00
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XCloseDisplay(disp);
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2002-11-15 05:40:55 -05:00
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return NULL;
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}
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2002-12-22 15:58:25 -05:00
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int num_pixelformats;
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2002-12-23 06:31:32 -05:00
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struct pixelformat *formats = getAvailablePixelFormats(disp, screen, &num_pixelformats);
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2002-11-15 05:40:55 -05:00
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// Allocate an array of DisplayModes big enough
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2002-11-19 03:50:57 -05:00
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jclass displayModeClass = env->FindClass("org/lwjgl/DisplayMode");
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2002-12-22 15:58:25 -05:00
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jobjectArray ret = env->NewObjectArray(num_modes*num_pixelformats, displayModeClass, NULL);
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jmethodID displayModeConstructor = env->GetMethodID(displayModeClass, "<init>", "(IIIIIII)V");
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2002-11-15 05:40:55 -05:00
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for (i = 0; i < num_modes; i++) {
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2002-12-22 15:58:25 -05:00
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for (int j = 0; j < num_pixelformats; j++) {
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2002-12-23 06:31:32 -05:00
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jobject displayMode = env->NewObject(displayModeClass, displayModeConstructor, avail_modes[i]->hdisplay, avail_modes[i]->vdisplay, formats[j].bpp, 0, formats[j].alpha, formats[j].depth, formats[j].stencil);
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2002-12-22 15:58:25 -05:00
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env->SetObjectArrayElement(ret, i*num_pixelformats + j, displayMode);
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}
|
2002-11-15 05:40:55 -05:00
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}
|
2002-12-22 15:58:25 -05:00
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free(formats);
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2002-11-15 05:40:55 -05:00
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|
XFree(avail_modes);
|
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|
|
XCloseDisplay(disp);
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|
return ret;
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}
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