New getPlatform() method added
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8575ae0496
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c6a231cf43
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@ -63,6 +63,20 @@ public final class Display {
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/** Whether or not the display has been requested to shutdown by the user */
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private static boolean closeRequested = false;
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/*
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* Platforms. This will let you determine which platform you are running
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* on, which is handy to know for some GL context calls.
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*/
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/** Windows platform */
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public static final int PLATFORM_WGL = 0;
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/** GLX (Linux/Unix) platform */
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public static final int PLATFORM_GLX = 1;
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/** MacOSX platform */
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public static final int PLATFORM_AGL = 2;
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/**
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* No construction allowed.
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*/
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@ -79,30 +93,30 @@ public final class Display {
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* @return an array of all display modes the system reckons it can handle.
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*/
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public static DisplayMode[] getAvailableDisplayModes() {
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DisplayMode[] unfilteredModes = nGetAvailableDisplayModes();
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DisplayMode[] unfilteredModes = nGetAvailableDisplayModes();
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if (unfilteredModes == null) {
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return new DisplayMode[0];
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}
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if (unfilteredModes == null) {
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return new DisplayMode[0];
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}
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// We'll use a HashSet to filter out the duplicated modes
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HashSet modes = new HashSet(unfilteredModes.length);
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// We'll use a HashSet to filter out the duplicated modes
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HashSet modes = new HashSet(unfilteredModes.length);
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modes.addAll(Arrays.asList(unfilteredModes));
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DisplayMode[] filteredModes = new DisplayMode[modes.size()];
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modes.toArray(filteredModes);
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modes.addAll(Arrays.asList(unfilteredModes));
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DisplayMode[] filteredModes = new DisplayMode[modes.size()];
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modes.toArray(filteredModes);
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if(Sys.DEBUG) {
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System.out.println("Removed " + (unfilteredModes.length - filteredModes.length) + " duplicate displaymodes");
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}
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if (Sys.DEBUG) {
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System.out.println("Removed " + (unfilteredModes.length - filteredModes.length) + " duplicate displaymodes");
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}
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return filteredModes;
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return filteredModes;
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}
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/**
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* Native method for getting displaymodes
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*/
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public static native DisplayMode[] nGetAvailableDisplayModes();
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/**
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* Native method for getting displaymodes
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*/
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public static native DisplayMode[] nGetAvailableDisplayModes();
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/**
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* Create a display with the specified display mode. If the display is
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@ -118,13 +132,7 @@ public final class Display {
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* @throws Exception if the display mode could not be set
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* @see #destroy()
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*/
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public static void create(
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DisplayMode displayMode,
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int alpha,
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int depth,
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int stencil,
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boolean fullscreen,
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String title)
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public static void create(DisplayMode displayMode, int alpha, int depth, int stencil, boolean fullscreen, String title)
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throws Exception {
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if (created) {
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@ -280,4 +288,16 @@ public final class Display {
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public static boolean isCloseRequested() {
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return closeRequested;
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}
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/**
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* Returns the operating system windowing platform. This will be one of the
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* constants defined above. There is no "unknown" platform; a native library port
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* has to provide a unique platform number for this mechanism to work. If the LWJGL
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* is ported to, say, QNX, we will have a PLATFORM_QNX at the ready.
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*
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* @return the windowing system
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*/
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public static native int getPlatform();
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}
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@ -32,6 +32,10 @@
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package org.lwjgl;
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import java.nio.*;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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/**
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* $Id$
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*
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@ -790,13 +794,36 @@ public final class Math {
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return (float) java.lang.Math.toDegrees(java.lang.Math.atan(theta));
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}
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/* We use NIO to do our bit fiddling */
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private static final ByteBuffer sqrtByteBuf = ByteBuffer.allocate(4).order(ByteOrder.nativeOrder());
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private static final IntBuffer sqrtIntBuf = sqrtByteBuf.asIntBuffer();
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private static final FloatBuffer sqrtFloatBuf = sqrtByteBuf.asFloatBuffer();
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/**
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* Return the square root of a value
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* @param n the number for which you want the square root
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* @return sqrt(n)
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* Approximate inverse square root function (Newton-Raphson?). This is a very approximate
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* root, accurate to maybe 1 or 2 dp.
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* @param x
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* @return ~x^0.5
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*/
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public static float sqrt(float n) {
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return (float) java.lang.Math.sqrt(n);
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public static float invsqrt(float x) {
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float xhalf = 0.5f * x;
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sqrtFloatBuf.put(0, x);
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int i = sqrtIntBuf.get(0);
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i = 0x5f375a86 - (i >> 1);
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sqrtIntBuf.put(0, i);
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x = sqrtFloatBuf.get(0);
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x *= (1.5f - xhalf * x * x); // This line may be duplicated for more accuracy.
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return x;
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}
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/**
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* Approximate square root function (Newton-Raphson?). This is a very approximate
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* root, accurate to maybe 1 or 2 dp.
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* @param x
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* @return ~x^0.5
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*/
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public static float sqrt(float x) {
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return 1.0f / invsqrt(x);
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}
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/*
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@ -1101,4 +1128,5 @@ public final class Math {
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}
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}
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@ -101,19 +101,6 @@ public final class Sys {
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}
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}
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/*
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* Platforms. This will let you determine which platform you are running
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* on, which is handy to know for some GL calls.
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*/
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/** Windows platform */
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public static final int PLATFORM_WGL = 0;
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/** GLX (Linux/Unix) platform */
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public static final int PLATFORM_GLX = 1;
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/** MacOSX platform */
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public static final int PLATFORM_AGL = 2;
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/**
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* @return the name of the native library to load
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@ -223,14 +210,4 @@ public final class Sys {
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*/
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public static native void alert(String title, String message);
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/**
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* Returns the operating system windowing platform. This will be one of the
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* constants defined above. There is no "unknown" platform; a native library port
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* has to provide a unique platform number for this mechanism to work. If the LWJGL
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* is ported to, say, QNX, we will have a PLATFORM_QNX at the ready.
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*
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* @return the windowing system
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*/
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public static native int getPlatform();
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}
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@ -189,4 +189,5 @@ abstract class BaseGL {
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&& currentContext == this
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&& Thread.currentThread() == renderThread;
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}
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}
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@ -12,7 +12,13 @@ extern "C" {
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/* Inaccessible static: mode */
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/* Inaccessible static: handle */
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/* Inaccessible static: closeRequested */
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/* Inaccessible static: class_00024org_00024lwjgl_00024Display */
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#undef org_lwjgl_Display_PLATFORM_WGL
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#define org_lwjgl_Display_PLATFORM_WGL 0L
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#undef org_lwjgl_Display_PLATFORM_GLX
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#define org_lwjgl_Display_PLATFORM_GLX 1L
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#undef org_lwjgl_Display_PLATFORM_AGL
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#define org_lwjgl_Display_PLATFORM_AGL 2L
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/* Inaccessible static: class_000240 */
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/*
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* Class: org_lwjgl_Display
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* Method: nGetAvailableDisplayModes
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@ -45,6 +51,14 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Display_nDestroy
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_isMinimized
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(JNIEnv *, jclass);
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/*
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* Class: org_lwjgl_Display
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* Method: getPlatform
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* Signature: ()I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_Display_getPlatform
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(JNIEnv *, jclass);
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#ifdef __cplusplus
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}
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#endif
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@ -19,12 +19,6 @@ extern "C" {
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/* Inaccessible static: LIBRARY_NAME */
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/* Inaccessible static: DEBUG */
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/* Inaccessible static: _debug */
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#undef org_lwjgl_Sys_PLATFORM_WGL
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#define org_lwjgl_Sys_PLATFORM_WGL 0L
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#undef org_lwjgl_Sys_PLATFORM_GLX
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#define org_lwjgl_Sys_PLATFORM_GLX 1L
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#undef org_lwjgl_Sys_PLATFORM_AGL
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#define org_lwjgl_Sys_PLATFORM_AGL 2L
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/* Inaccessible static: class_000240 */
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/*
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* Class: org_lwjgl_Sys
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@ -82,14 +76,6 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_setProcessPriority
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JNIEXPORT void JNICALL Java_org_lwjgl_Sys_alert
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(JNIEnv *, jclass, jstring, jstring);
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/*
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* Class: org_lwjgl_Sys
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* Method: getPlatform
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* Signature: ()I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_Sys_getPlatform
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(JNIEnv *, jclass);
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#ifdef __cplusplus
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}
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#endif
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@ -536,14 +536,6 @@ JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_nCreate
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0, 0, 0 // layer masks ignored
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};
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// Ensure desktop color depth is adequate
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int availableBitDepth = GetDeviceCaps(hdc, BITSPIXEL);
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if (availableBitDepth < bpp) {
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printf("This application requires a greater colour depth.\n");
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destroyAll();
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return JNI_FALSE;
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};
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int iPixelFormat;
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// get the best available match of pixel format for the device context
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@ -561,11 +553,13 @@ JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_nCreate
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return JNI_FALSE;
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}
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/*
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if (desc.cColorBits < bpp) {
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printf("This application requires a greater colour depth.\n");
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destroyAll();
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return JNI_FALSE;
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}
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*/
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if (desc.cAlphaBits < alphaBits) {
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printf("This application requires a greater alpha depth.\n");
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@ -643,3 +637,16 @@ JNIEXPORT jboolean JNICALL Java_org_lwjgl_Display_isMinimized
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return isMinimized ? JNI_TRUE : JNI_FALSE;
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}
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/*
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* Class: org_lwjgl_Display
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* Method: getPlatform
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* Signature: ()I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_Display_getPlatform
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(JNIEnv * env, jclass clazz)
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{
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return org_lwjgl_Display_PLATFORM_WGL;
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}
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@ -163,15 +163,3 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_alert
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env->ReleaseStringUTFChars(message, eMessageText);
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env->ReleaseStringUTFChars(title, cTitleBarText);
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: getPlatform
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* Signature: ()I
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_Sys_getPlatform
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(JNIEnv * env, jclass clazz)
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{
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return org_lwjgl_Sys_PLATFORM_WGL;
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}
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