The memory footprint question was brought up in this morning meeting. So here is a short analysis I have put together to help us better understand what we have achieved and what can be improved on the prism-es2 pipe in term of memory footprint reduction.

Here is the breakdown of prism-es2 related native libraries and jars (note that prism-util.jar is also used by prism-d3d)

Current in my workspace:
-rw-r--r-- 1 cyang staff 407152 Dec 13 13:06 artifacts/sdk/build/lib/desktop/libprism-es2.jnilib
-rw-r--r-- 1 cyang staff 38135 Dec 13 13:06 artifacts/sdk/build/lib/desktop/prism-es2-mac.jar
-rw-r--r-- 1 cyang staff 274694 Dec 13 13:06 artifacts/sdk/build/lib/desktop/prism-es2.jar
-rw-r--r-- 1 cyang staff 55166 Dec 13 13:06 artifacts/sdk/build/lib/desktop/prism-util.jar

55166 + 407152 + 38135 + 274694
=775147 bytes (uncompressed)

jfx-202:
-rw-r--r-- 1 cyang staff 493928 Nov 10 08:50 202/jfx/artifacts/sdk/build/lib/desktop/libprism_jogl_gl2.jnilib
-rw-r--r-- 1 cyang staff 24800 Nov 10 08:50 202/jfx/artifacts/sdk/build/lib/desktop/libprism_nativewindow_jvm.jnilib
-rw-r--r-- 1 cyang staff 29688 Nov 10 08:50 202/jfx/artifacts/sdk/build/lib/desktop/libprism_nativewindow_util.jnilib
-rw-r--r-- 1 cyang staff 143151 Nov 10 08:55 202/jfx/artifacts/sdk/build/lib/desktop/prism-es2.jar
-rw-r--r-- 1 cyang staff 278994 Nov 10 08:50 202/jfx/artifacts/sdk/build/lib/desktop/prism-jogl-common.jar
-rw-r--r-- 1 cyang staff 123792 Nov 10 08:50 202/jfx/artifacts/sdk/build/lib/desktop/prism-jogl-glu.jar
-rw-r--r-- 1 cyang staff 40836 Nov 10 08:52 202/jfx/artifacts/sdk/build/lib/desktop/decora-ogl.jar

143151 + 278994 + 123792 + 493928 + 24800 + 29688 + 40836
=1135189 bytes (uncompressed)

Percentage reduction: ~ 32%
Reduced # of native libraries: 2
Reduced # of packages: 1

There is still room where we can further reduce the memory footprint by possibly 50% simply by trimming away unused GL binding methods (in Java and in native). This is a relative safe work which is best to wait till we have a functional X11 port.

Listing of the top 5 largest files in prism-es2 projects:

prism-es2
     525 ./GLCapabilities.java
     880 ./GL.java
    1076 ./GL2GL3.java
    2669 ./GL2.java
    6323 ./impl/gl2/GL2Impl.java
   18226 total

prism-es2-mac
     248 ./src/com/sun/prism/opengl/impl/macosx/cgl/MacOSXPbufferCGLDrawable.java
     274 ./src/com/sun/prism/opengl/impl/macosx/cgl/MacOSXCGLGraphicsConfiguration.java
     324 ./src/com/sun/prism/opengl/impl/macosx/cgl/MacOSXPbufferCGLContext.java
     335 ./src/com/sun/prism/opengl/impl/macosx/cgl/MacOSXCGLContext.java
     539 ./src/com/sun/prism/opengl/impl/macosx/cgl/CGL.java
    2679 total

prism-es2-native
     792 ./src/macosx/CGL_JNI.c
    1269 ./src/x11/GLX_JNI.c
    1585 ./src/windows/WGLExtImpl_JNI.c
    1661 ./src/x11/GLXExtImpl_JNI.c
    8174 ./src/GL2Impl_JNI.c
   15458 total