Age | Commit message (Collapse) | Author |
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should be defined. It was flawed on some platforms (e.g., Darwin & mingw).
Instead, rely on the build system to define it on the compiler command line.
This also reverts ajax's hand-edit to indirect_size.c. I'll fix that on the
X.org side of things later today.
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src/mesa/glapi. Basically, the scripts that did simple things (like
gl_offsets.py) were simple, and the scripts that did more complicated things
(like glX_proto_send.py) were getting progressively more and more out of
control. So, I re-write the foundation classes on which everything is based.
One problem with the existing code is that the division between the GL API
database representation and the way the output code is generated was either
blury or nonexistant. The new code somewhat follows the
Model-View-Controller pattern, minus the Controller. There is a distinct
set of classes that model the API data, and there is a distinct set of
classes that generate code from that data.
One big change is in the class that represents GL functions (was glFunction,
is now gl_function). There used to be an instance of this calls for each
function and for each alias to that function. For example, there was an
instance for PointParameterivSGIS, PointParameterivEXT, PointParameterivARB,
and PointParameteriv. In the new code, there is one instance. Each
instance has a list of entrypoint names for the function. In the next
revision, this will allow a couple useful things. The script will be able
to verify that the parameters, return type, and GLX protocol for a function
and all it's aliases match.
It will also allow aliases to be represented in the XML more compactly.
Instead of repeating all the information, an alias can be listed as:
<function name="PointParameterivARB" alias="PointParameterivEXT"/>
Because the data representation was changed, the order that the alias
functions are processed by the scripts also changed. This accounts for at
least 2,700 of the ~3,600 lines of diffs in the generated code.
Most of the remaining ~900 lines of diffs are the result of bugs *fixed* by
the new scripts. The old scripts also generated code with some bugs in it.
These bugs were discovered while the new code was being written.
These changes were discussed on the mesa3d-dev mailing list back at the end
of May:
http://marc.theaimsgroup.com/?t=111714569000004&r=1&w=2
Xorg bug: 3197, 3208
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parse_GL_API, in gl_XML.py.
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functions. There are two parts to this. First, a size element with a name
"Get" is shorthand for having four separate size elements with names
"GetIntegerv", "GetDoublev", "GetFloatv", and "GetBooleanv". Additionally,
a count of "?" is treated specially. This causes a call to a handcoded
function named "__gl<base name>_variable_size". This is *only* needed to
support GL_COMPRESSED_TEXTURE_FORMATS. That enum can return a variable
number of values depending how many compressed texture formats are supported
by the implementation.
Fix a problem with glGetProgram{Local,Env}Parameter[df]vARB,
glAreProgramsResidentNV, and glGetVertexAttribivNV. These changes only
affect code generated for the server-side.
The changes to enum.c are caused by enums added for the server-side
__glGetBooleanv_size functions.
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same set of functions will be iterated for both the generated C-source file
and the generated header file.
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glFunctionIterator and is used by GlxProto. The difference between the two
iterator classes is that glXFunctionIterator skips functions that the GLX
protocol code does not care about.
Replace all the remaining occurances of glParameter::p_count_parameters and
glFunction::count_parameters with the count_parameter_list.
Add GlxProto::size_call to generate the C code to calculate 'compsize'.
These trivially modify the generated code.
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FilterGLAPISpecBase (in gl_XML.py). When these functions are used to emit
common #define lines, the will automatically be undefined in
FilterGLAPISpecBase::printFooter if header_tag is set (i.e., the file is a
header file).
These changes do not modify the generated code.
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glXEnumFunction constructor. The allows sub-classes of GlxProto to
over-ride the concrete class used for glXEnumFunction.
In addition to tracking p_count_parameters in glParameter, break the comma
separated list of parameter names into a Python list called
count_parameter_list. It is now possible to query if a name is the name of
one of the count parameters just by comparing
param.count_parameter_list.count(n) to zero. Eventually the remaining uses
of p_count_parameters will be replaced with uses of count_parameter_list.
Make sure that 'void *' parameters are handled correctly in
glParameter::size_string.
Add PrintGlxReqSize_h and PrintGlxReqSize_c. These classes emit prototypes
and functions used on the server-side to determine the expected size of an
incoming GL command.
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FilterGLAPISpecBase. Since the size_h mode of glX_proto_size.py will be
used to generate multiple header files, add an option to specify the define
that is used for multiple-inclusion protection.
The changes to the header files in this commit are just a side-effect of the
changes to the Python scripts.
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Parameters to glX_proto_size.py are now used to determine whether to emit
either get-type function, set-type functions, or both. When only get-type
functions are emitted, they can optionally alias set-type functions. This
would be useful if, for example, the two types were in different source
files.
The real work to implement this is in SizeStubFunctionIterator class. All
of the logic for which functions to iterate and in which order is
implemented there.
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source file.
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