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New context stuff - complete for win32, incomplete for linux / mac

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Caspian Rychlik-Prince 2004-02-24 14:31:39 +00:00
parent c50ded0d22
commit 9592f68c8e
9 changed files with 71 additions and 110 deletions
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42
src/java/org/lwjgl/opengl/GLContext.java
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@ -35,9 +35,7 @@ package org.lwjgl.opengl;
import java.lang.ref.WeakReference;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.lwjgl.Sys;
@ -56,13 +54,7 @@ public final class GLContext {
/** The currently initialised context */
private static WeakReference currentContext;
/** A map of WeakReferences to contexts to LWJGL pointers-to-extension-structs */
private static final Map contextMap = new HashMap();
/** A map of WeakReferences to contents to Sets of extension names */
private static final Map extensionsMap = new HashMap();
/*
* Available extensions
*/
@ -212,7 +204,10 @@ public final class GLContext {
* in the future, freeing up a little RAM.
* @param context The context object, which uniquely identifies a GL context
*/
public static synchronized void setContext(Object context) {
public static synchronized void useContext(Object context) {
if (context == null) {
throw new NullPointerException("Can't use a null context");
}
// Is this the same as last time?
Object current = currentContext == null ? null : currentContext.get();
if (current == context) {
@ -222,35 +217,16 @@ public final class GLContext {
// Ok, now it's the current context.
currentContext = new WeakReference(context);
// Look in the context map to see if we've encountered this context before
Integer encountered = (Integer) contextMap.get(currentContext);
Set exts;
if (encountered != null) {
exts = (Set) extensionsMap.get(currentContext);
reinit(encountered.intValue());
} else {
exts = new HashSet();
contextMap.put(currentContext, new Integer(init(exts)));
}
HashSet exts = new HashSet();
init(exts);
determineAvailableExtensions(exts);
VBOTracker.setCurrent(currentContext);
}
/**
* Native method to initialize a context from scratch or load its function pointers from a
* cache.
* Native method to initialize a context
* @param exts An empty Set of Strings that will be filled with the names of enabled extensions
* @return a LWJGL context-index-pointer
*/
private static native int init(Set exts);
/**
* Native method to re-initialize a context.
* @param context Hash code of the context object
*/
private static native void reinit(int context);
private static native void init(Set exts);
}