2002-08-15 11:46:18 -04:00
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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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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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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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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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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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* $Id$
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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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* Win32 specific library for display handdling.
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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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* @author cix_foo <cix_foo@users.sourceforge.net>
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* @version $Revision$
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2002-08-11 07:49:32 -04:00
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*/
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#include <windows.h>
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#include "org_lwjgl_Display.h"
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2002-08-15 10:53:18 -04:00
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2002-08-26 14:14:22 -04:00
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#undef DIRECTINPUT_VERSION
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#define DIRECTINPUT_VERSION 0x0300
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2002-08-15 10:53:18 -04:00
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2002-08-11 07:49:32 -04:00
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#include <dinput.h>
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2002-08-17 10:13:12 -04:00
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#define WINDOWCLASSNAME "LWJGLWINDOW"
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2002-08-11 07:49:32 -04:00
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// Initialise static variables
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bool oneShotInitialised = false;
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HWND hwnd = NULL; // Handle to the window
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HDC hdc = NULL; // Device context
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LPDIRECTINPUT lpdi = NULL;
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2002-12-14 10:23:53 -05:00
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void dumpLastError(void) {
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LPVOID lpMsgBuf;
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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GetLastError(),
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0, // Default language
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(LPTSTR) &lpMsgBuf,
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0,
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NULL
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);
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printf("System error: %s\n", lpMsgBuf);
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LocalFree(lpMsgBuf);
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}
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2002-08-11 07:49:32 -04:00
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/*
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* A dummy WindowProc which does nothing. Used so we can have an invisible OpenGL window
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*/
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LRESULT CALLBACK WindowProc(HWND hWnd,
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UINT msg,
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WPARAM wParam,
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LPARAM lParam)
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{
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switch (msg) {
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// disable screen saver and monitor power down messages which wreak havoc
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case WM_SYSCOMMAND:
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{
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switch (wParam) {
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case SC_SCREENSAVE:
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case SC_MONITORPOWER:
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return 0;
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break;
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default:
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break;
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}
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}
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2002-08-17 10:13:12 -04:00
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case WM_PAINT:
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return 0;
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2002-08-11 07:49:32 -04:00
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}
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// default action
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return DefWindowProc(hWnd, msg, wParam, lParam);
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}
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/*
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* Sets the fullscreen display mode.
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* Returns 1 for success and -1 for failure.
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*/
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int SetDisplayMode(int width, int height, int bpp, int freq)
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{
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// Step 2: set display mode using OpenGL friendly tactics
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DEVMODE devmode;
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devmode.dmSize = sizeof(DEVMODE);
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devmode.dmBitsPerPel = bpp;
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devmode.dmPelsWidth = width;
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devmode.dmPelsHeight = height;
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devmode.dmDisplayFlags = 0;
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devmode.dmDisplayFrequency = freq;
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2002-11-24 12:12:36 -05:00
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devmode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFLAGS;
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if (freq != 0)
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devmode.dmFields |= DM_DISPLAYFREQUENCY;
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2002-08-11 07:49:32 -04:00
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LONG cdsret = ChangeDisplaySettings(&devmode, CDS_FULLSCREEN);
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switch (cdsret) {
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case DISP_CHANGE_BADFLAGS :
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printf("Failed to set screen mode: bad flags\n");
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return -1;
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case DISP_CHANGE_FAILED:
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printf("Failed to set screen mode: change failed\n");
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return -1;
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case DISP_CHANGE_BADMODE:
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printf("Failed to set screen mode: bad mode\n");
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return -1;
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case DISP_CHANGE_SUCCESSFUL :
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// Success!
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break;
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default:
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printf("Failed to set screen mode: unknown error\n");
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return -1;
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}
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return 1;
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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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2002-08-24 17:19:06 -04:00
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DEVMODE mode;
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// First count the number of display modes.
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int i = 0, n = 0;
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while (EnumDisplaySettings(NULL, i ++, &mode) != 0) {
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// Filter out indexed modes
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if (mode.dmBitsPerPel < 16) {
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continue;
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} else
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n ++;
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}
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; // Do nothing
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// Allocate an array of DisplayModes big enough
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jclass displayModeClass = env->FindClass("org/lwjgl/DisplayMode");
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jobjectArray ret = env->NewObjectArray(n, displayModeClass, NULL);
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jmethodID displayModeConstructor = env->GetMethodID(displayModeClass, "<init>", "(IIII)V");
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i = n = 0;
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while (EnumDisplaySettings(NULL, i ++, &mode) != 0) {
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// Filter out indexed modes
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if (mode.dmBitsPerPel < 16) {
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continue;
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} else {
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jobject displayMode = env->NewObject(displayModeClass, displayModeConstructor, mode.dmPelsWidth, mode.dmPelsHeight,
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mode.dmBitsPerPel, mode.dmDisplayFrequency);
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env->SetObjectArrayElement(ret, n ++, displayMode);
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}
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}
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return ret;
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2002-08-11 07:49:32 -04:00
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}
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/*
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* Class: org_lwjgl_Display
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* Method: nCreate
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* Signature: (IIIIZ)Z
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_nCreate
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2002-08-24 17:19:06 -04:00
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(JNIEnv * env, jclass clazz, jint width, jint height, jint bpp, jint freq, jboolean fullscreen)
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2002-08-11 07:49:32 -04:00
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{
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#ifdef _DEBUG
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printf("Creating display: size %dx%d %dhz %dbpp...\n", width, height, freq, bpp);
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#endif
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2002-08-24 17:19:06 -04:00
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if (fullscreen && SetDisplayMode(width, height, bpp, freq) != 1)
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2002-08-11 07:49:32 -04:00
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return JNI_FALSE;
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/*
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Register a window. This window does nothing, it's just a requirement that we get
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a handle to it so we can do other things
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*/
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if (!oneShotInitialised) {
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WNDCLASS windowClass;
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windowClass.style = CS_GLOBALCLASS | CS_OWNDC;
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windowClass.lpfnWndProc = WindowProc;
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windowClass.cbClsExtra = 0;
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windowClass.cbWndExtra = 0;
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windowClass.hInstance = (HINSTANCE) GetCurrentProcess();
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windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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windowClass.hCursor = LoadIcon(NULL, IDC_ARROW);
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windowClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
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windowClass.lpszMenuName = NULL;
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windowClass.lpszClassName = WINDOWCLASSNAME;
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if (RegisterClass(&windowClass) == 0) {
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2002-12-14 10:23:53 -05:00
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dumpLastError();
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2002-08-11 07:49:32 -04:00
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printf("Failed to register window class\n");
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return JNI_FALSE;
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}
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oneShotInitialised = true;
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}
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// Create the window now, using that class:
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hwnd = CreateWindow(
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WINDOWCLASSNAME,
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"LWJGL",
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WS_POPUP, // | WS_MAXIMIZE,
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0, 0,
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width, height,
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NULL,
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NULL,
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2002-08-17 10:13:12 -04:00
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GetModuleHandle(NULL),
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2002-08-11 07:49:32 -04:00
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NULL);
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// And we never look at windowClass again...
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ShowWindow(hwnd, SW_SHOW);
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UpdateWindow(hwnd);
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hdc = GetWindowDC(hwnd);
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// Success! Now you need to initialize a GL object, which creates a GL rendering context;
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// and then to issue commands to it, you need to call gl::makeCurrent().
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#ifdef _DEBUG
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printf("Created display\n");
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#endif
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// Hide the mouse
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ShowCursor(FALSE);
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// Create input
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2002-08-17 10:13:12 -04:00
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HRESULT ret = DirectInputCreate(GetModuleHandle(NULL), DIRECTINPUT_VERSION, &lpdi, NULL);
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2002-08-11 07:49:32 -04:00
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if (ret != DI_OK && ret != DIERR_BETADIRECTINPUTVERSION ) {
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2002-08-17 10:13:12 -04:00
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printf("Failed to create directinput");
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switch (ret) {
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case DIERR_BETADIRECTINPUTVERSION :
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printf(" - Beta versio0n\n");
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break;
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case DIERR_INVALIDPARAM :
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printf(" - Invalid parameter\n");
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break;
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case DIERR_OLDDIRECTINPUTVERSION :
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printf(" - Old Version\n");
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break;
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case DIERR_OUTOFMEMORY :
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printf(" - Out Of Memory\n");
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break;
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default:
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printf("\n");
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}
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2002-08-11 07:49:32 -04:00
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return JNI_FALSE;
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}
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2002-08-17 10:13:12 -04:00
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jfieldID fid_handle = env->GetStaticFieldID(clazz, "handle", "I");
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env->SetStaticIntField(clazz, fid_handle, (jint) hwnd);
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2002-08-11 07:49:32 -04:00
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return JNI_TRUE;
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}
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/*
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* Class: org_lwjgl_Display
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* Method: nDestroy
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_Display_nDestroy
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(JNIEnv * env, jclass clazz)
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{
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// Reset the display if necessary
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ChangeDisplaySettings(NULL, 0);
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if (hwnd != NULL) {
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// Vape the window
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DestroyWindow(hwnd);
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hwnd = NULL;
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}
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#ifdef _DEBUG
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printf("Destroyed display\n");
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#endif
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// Show the mouse
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ShowCursor(TRUE);
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}
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