From 774cd9d1685bd3f4dbb19ed06b57c6d11f118e1e Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Fri, 14 Nov 2008 05:08:29 +0000
Subject: - EGL     - Adding 'eglGetProcAddress(long eglGetProcAddressHandle,
 String funcName)',       to be able to bootstrap 'eglGetProcAddress'.

- EGLDrawableFactory
    - Adding ES2 libname GLES20
    - Adding dynamicLookupFunctionOnLibs: Lookup in the libraries (dlsym)
    - Change dynamicLookupFunction:
        - Bootstrap 'eglGetProcAddress' first
        - 1st try eglGetProcAddress
        - 2nd try dynamicLookupFunctionOnLibs

- GLContextImpl.isFunctionAvailable()
    - 1st try GL proc table (cached)
    - 2nd try platform extension proc table (cached)
    - 3rd try EGLDrawableFactory.dynamicLookupFunction (not cached)


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/branches/JOGL_2_SANDBOX@1787 232f8b59-042b-4e1e-8c03-345bb8c30851
---
 .../sun/opengl/impl/egl/EGLDrawableFactory.java    | 33 +++++++++++++++++++---
 1 file changed, 29 insertions(+), 4 deletions(-)

(limited to 'src/classes/com/sun/opengl/impl/egl/EGLDrawableFactory.java')

diff --git a/src/classes/com/sun/opengl/impl/egl/EGLDrawableFactory.java b/src/classes/com/sun/opengl/impl/egl/EGLDrawableFactory.java
index b7c62bfd0..ed045939b 100755
--- a/src/classes/com/sun/opengl/impl/egl/EGLDrawableFactory.java
+++ b/src/classes/com/sun/opengl/impl/egl/EGLDrawableFactory.java
@@ -71,9 +71,11 @@ public class EGLDrawableFactory extends GLDrawableFactoryImpl {
 
         if (GLProfile.isGLES2()) {
             // Unix
+            glesLibNames.add("libGLES20");
             glesLibNames.add("libGLESv2");
             glesLibNames.add("libGLESv2_CM");
             // Windows
+            glesLibNames.add("GLES20");
             glesLibNames.add("GLESv2");
             glesLibNames.add("GLESv2_CM");
         } else if (GLProfile.isGLES1()) {
@@ -161,11 +163,8 @@ public class EGLDrawableFactory extends GLDrawableFactoryImpl {
     public void loadGLULibrary() {
     }
 
-    public long dynamicLookupFunction(String glFuncName) {
+    private long dynamicLookupFunctionOnLibs(String glFuncName) {
         // Look up this function name in all known libraries
-        // 
-        // Note that we aren't using eglGetProcAddress; maybe we
-        // should once it's bootstrapped (FIXME)
         for (Iterator iter = glesLibraries.iterator(); iter.hasNext(); ) {
             NativeLibrary lib = (NativeLibrary) iter.next();
             long addr = lib.lookupFunction(glFuncName);
@@ -177,6 +176,32 @@ public class EGLDrawableFactory extends GLDrawableFactoryImpl {
         return 0;
     }
 
+    private long eglGetProcAddressHandle = 0;
+
+    public long dynamicLookupFunction(String glFuncName) {
+        if(null==glFuncName) {
+            return 0;
+        }
+
+        // bootstrap eglGetProcAddress
+        if(0==eglGetProcAddressHandle) {
+            eglGetProcAddressHandle = dynamicLookupFunctionOnLibs("eglGetProcAddress");
+            if(0==eglGetProcAddressHandle) {
+                throw new GLException("Couldn't find eglGetProcAddress function entry");
+            }
+        }
+
+        if(glFuncName.equals("eglGetProcAddress")) {
+            return eglGetProcAddressHandle;
+        }
+
+        long addr = EGL.eglGetProcAddress(eglGetProcAddressHandle, glFuncName);
+        if(0==addr) {
+            addr = dynamicLookupFunctionOnLibs(glFuncName);
+        }
+        return addr;
+    }
+
     public boolean canCreateContextOnJava2DSurface() {
         return false;
     }
-- 
cgit v1.2.3