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automatically detect duplicate constant and function definitions
between vendor and ARB extensions and the OpenGL core, and to remove
the suffixes of ARB extensions. This code has helped automate the
process of discovering extensions that were promoted into the OpenGL
core.
While this code has saved some manual effort, it has also caused
several problems:
1. It causes obsolete ARB extensions to be incorrectly moved into the
core OpenGL namespace. GL_ARB_texture_rectangle, GL_ARB_vertex_blend,
and GL_ARB_matrix_palette are examples of extensions that should not
have their ARB suffixes removed because they are dead-end extensions.
Definitions which are explicitly specified that they will change, such
as those in the EGL_KHR_sync extension, were also incorrectly moved
into the core namespace.
2. It has caused certain OpenGL ES-specific definitions to
accidentally be promoted into the core OpenGL namespace: for example,
the constants associated with the GL_OES_point_size_array extension,
which were incorrectly placed into the GL2ES1 interface.
3. It causes namespace collisions between certain ARB extensions that
are only accessible via their ARB entry points and core OpenGL
routines: specifically GL_ARB_vertex_program and GL_ARB_fragment
program. Based on tests on NVIDIA's drivers, when a developer wants to
use the earlier ARB_vertex_program and ARB_fragment_program semantics
rather than GLSL, it is mandatory to use the ARB entry points rather
than the core OpenGL entry points.
4. It is not easy to configure the behavior of this automatic merging,
nor easy to see how it would be extended to be configurable.
5. It does not address the problem of detecting which extensions are
common between desktop OpenGL and OpenGL ES. A different algorithm
would be needed to solve that problem.
6. It has a high degree of functional overlap to the IgnoreExtension
directive which has previously been used to ignore ARB extensions that
were promoted into the OpenGL core. There were already IgnoreExtension
directives in place for all of the OpenGL extensions subsumed in
OpenGL 1.1 through 1.3.
7. It has been the cause of several bugs and unexpected interactions
with the Ignore and ForceProcAddressGen directives.
After careful consideration, it appears that the problems with this
code outweigh the benefits and it has been removed. The run-time code
which attempts to find extension variants of core entry points has
been retained, however.
To reduce the amount of subsequent manual work, the following
additions have been made:
1. A generic SymbolFilter mechanism has been added to GlueGen, which
can be used to pre-process the entire set of constant and function
definitions at any time during glue code generation (although it is
recommended to do so at the beginning of processing, i.e., in
GlueEmitter.beginEmission()).
2. The RenameJavaMethod directive has been generalized to
RenameJavaSymbol, and can now work on constant definitions.
3. A ConstantDefinition class has been added.
4. A RenameExtensionIntoCore directive has been added to the GLEmitter
which will rename all constant definitions and entry points associated
with a particular OpenGL extension into the core namespace, i.e.,
stripping off any ARB or similar suffixes.
5. An AutoUnifyExtensions directive has been added which is disabled
by default but which will automatically ignore any OpenGL extension
which has been completely subsumed into the OpenGL core and, if not,
print out the first declaration in that extension which caused it to
fail to be ignored.
The extensions common between OpenGL ES and desktop OpenGL have now
largely been moved into the core namespace using the
RenameExtensionIntoCore directive. A couple of these extensions had
slight differences between desktop OpenGL and OpenGL ES; the common
declarations were renamed manually.
IgnoreExtension directives have been added for those ARB extensions
promoted into the OpenGL core up to OpenGL 2.1. A few extensions which
were either silently promoted into the core specification
(GL_EXT_paletted_texture) or are obsolete (GL_EXT_multisample,
GL_EXT_point_parameters) were also ignored. The GlueGen runtime code
which looks up extension versions of core APIs via GLExtensionNames
makes this possible without breaking compatibility on older machines
that do not support OpenGL 2.1 directly.
With these changes, the same effect as the automatic extension
unification mechanism has been achieved, with much more explainable
and controllable results. Before-and-after versions of all of the
public interfaces (GL, GL2ES1, GL2ES2, GLES1, GLES2, and GL2) have
been compared by hand to ensure that the results are as expected and
desired.
Bugs in BuildStaticGLInfo were fixed which were preventing the
extension associations in the OpenGL ES headers from being discovered.
getExtensions() was added to be able to enumerate the discovered
extensions. Most .cfg files were changed to parse both the desktop
OpenGL and the OpenGL ES headers using the GLHeaders directive so that
the extension associations are known for both sets of APIs.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@134 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@102 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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All enums and functions within the specified interface (or abstract class),
will not be emitted in the resulting interface.
This simplifies the GL profile config's a lot, as well reducing the footprint.
- Adding JavaParser 'com.sun.gluegen.jgram.JavaParser',
which collects enums and functions.
- New config feature 'UnsupportedExceptionType <exception name>',
which complements the 'RuntimeExceptionType <exception name>' feature.
UnsupportedExceptionType's are thrown in case a function is not available.
- Fix: BuildComposablePipeline
- Method names are now unique by:
- name, return type, modifiers and arguments
- Cleanup:
- mv: com.sun.gluegen.runtime.opengl.GLUnifiedName -> com.sun.gluegen.opengl.GLUnifiedName
- contains only the compile time portion of the former
- add: com.sun.gluegen.opengl.runtime.GLExtensionNames
- contains the extension name handling
- bulletproof GL function and GL enum recognition.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@101 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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while adding the generic function name '__ALL__'.
This action applies to all generated functions then,
hence it lowers the maintenance of the gluegen cfg files.
Example:
ForceProcAddressGen __ALL__
LocalProcAddressCallingConvention __ALL__ GL_APIENTRY
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@97 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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typedefs where the calling convention was not specified. Provided new
LocalProcAddressCallingConvention directive to allow developer to
specify the calling convention on a per-function basis; used this in
gl-es1.cfg and gl-es2.cfg. Changed GLEmitter to force the calling
convention of the locally typedefed function pointers for OpenGL
function name unification to GL_APIENTRY, compatible with OpenGL ES 1
and OpenGL ES 2. Changed generated native glue code to #define
GL_APIENTRY appropriately on the desktop. Refactored custom C code.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@96 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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Terminology:
ARB Extensions: "GL2", "ARB", "OES", "OML"
Vendor Extensions: "EXT", "NV", "ATI", "SGI", "SGIS", "SGIX", "HP", "IBM", "WIN"
Pass-1 Unify ARB extensions with the same value
Pass-2 Unify vendor extensions,
if exist as an ARB extension with the same value.
Pass-3 Emit
Done:
- Unification of GL enumerates
- Unification of GL functions
- dynamic extension lookup
- ..
TODO:
- Break down GL.java: GL + GL2ES1ES2 (for future GL3, etc)
- Add a GL2 small implementation, to only support the GL2ES2 subset,
'GL2SubES2' ..
+++
- Fixed X11 build breakage of 'jawt' linkage.
- Fixed NEWT native code mouse- and keyevent id's,
missed sync while moving them from the bitfield notation.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@93 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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- Using GL.getContext() interface directly
- Adding javax.media.opengl.* to imports
ProcAddressEmitter, ProcAddressTable
- Generated class implements gluegen runtime's ProcAddressTable,
to allow generic access to 'getAddressFor(String functionName)'
JavaConfiguration, JavaEmitter
- NEW: ParentClass <ThisClass> <ParentClass>,
to allow the implementing classes to extend a user spec one
- NEW: AccessControl type 'PUBLIC_ABSTRACT",
to allow a generated impl. class to be abstract.
JavaType.getDescriptor()
- Throw a meaningfull exception in case of an unknown type,
ie a used type/struct, which could not be generated.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/branches/JOGL_2_SANDBOX@84 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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non-const arrays of compound types and the associated copies back to
Java, in support of constructs like eglChooseConfig. Generated code
has been compiled but not yet tested. Refactorings to allow generated
glue code using StructAccessors to work on Java ME / CDC / FP +
JSR-239 NIO, as well as Java SE. Bug fix to ForceProcAddressGen.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@77 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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procedure addresses
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@65 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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those helper classes into their apps
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@62 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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whether to search the system path first; perhaps useful if
applications ship only a backup version of native libraries associated
with a particular Java binding. In the case of JOAL we plan to ship a
recent OpenAL implementation so we will not need to search the system
path first. Changed ForceProcAddressGen directive to force
call-through-function-pointer semantics for the targeted function.
Changed JOAL to not link directly against the OpenAL library at all,
but instead to look up all entry points using the GlueGen
NativeLibrary class (instead of the custom dlsym code, now removed) in
particular to solve DSO versioning problems on Linux. Updated EAX
binding to work with dynamically loading OpenAL. Tested on Windows so
far; more testing needed on Linux in Java Web Start scenarios.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@42 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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Restructured JOGL and JOAL build processes to separately invoke
GlueGen's main build.xml before using it to generate their code.
Refactored OS/CPU detection code into gluegen-cpptasks.xml build file
in GlueGen workspace, which is now imported by both the JOGL and JOAL
build processes. Unfortunately it seems to be somewhat difficult to
completely factor out the C compiler configuration into the GlueGen
workspace so this has been left for a later date. Added missed
ALProcAddressLookup file to JOAL workspace. Updated JOGL and JOAL
build documentation. More documentation for the GlueGen workspace is
forthcoming.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/gluegen/trunk@3 a78bb65f-1512-4460-ba86-f6dc96a7bf27
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