Subversion Repositories Kolibri OS

#!/usr/bin/env python

# Copyright (C) 2012 Intel Corporation

#

# Permission is hereby granted, free of charge, to any person obtaining a

# copy of this software and associated documentation files (the "Software"),

# to deal in the Software without restriction, including without limitation

# the rights to use, copy, modify, merge, publish, distribute, sublicense,

# and/or sell copies of the Software, and to permit persons to whom the

# Software is furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice (including the next

# paragraph) shall be included in all copies or substantial portions of the

# Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

# IN THE SOFTWARE.

# This script generates the file api_exec.c, which contains

# _mesa_initialize_exec_table().  It is responsible for populating all

# entries in the "exec" dispatch table that aren't dynamic.

import collections

import license

import gl_XML

import sys, getopt

exec_flavor_map = {

    'dynamic': None,

    'mesa': '_mesa_',

    'skip': None,

    }

header = """/**

 * \\file api_exec.c

 * Initialize dispatch table.

 */

#include "main/accum.h"

#include "main/api_loopback.h"

#include "main/api_exec.h"

#include "main/arbprogram.h"

#include "main/atifragshader.h"

#include "main/attrib.h"

#include "main/blend.h"

#include "main/bufferobj.h"

#include "main/arrayobj.h"

#include "main/buffers.h"

#include "main/clear.h"

#include "main/clip.h"

#include "main/colortab.h"

#include "main/condrender.h"

#include "main/context.h"

#include "main/convolve.h"

#include "main/depth.h"

#include "main/dlist.h"

#include "main/drawpix.h"

#include "main/drawtex.h"

#include "main/rastpos.h"

#include "main/enable.h"

#include "main/errors.h"

#include "main/es1_conversion.h"

#include "main/eval.h"

#include "main/get.h"

#include "main/feedback.h"

#include "main/fog.h"

#include "main/fbobject.h"

#include "main/framebuffer.h"

#include "main/hint.h"

#include "main/histogram.h"

#include "main/imports.h"

#include "main/light.h"

#include "main/lines.h"

#include "main/matrix.h"

#include "main/multisample.h"

#include "main/pixel.h"

#include "main/pixelstore.h"

#include "main/points.h"

#include "main/polygon.h"

#include "main/querymatrix.h"

#include "main/queryobj.h"

#include "main/readpix.h"

#include "main/samplerobj.h"

#include "main/scissor.h"

#include "main/stencil.h"

#include "main/texenv.h"

#include "main/texgetimage.h"

#include "main/teximage.h"

#include "main/texgen.h"

#include "main/texobj.h"

#include "main/texparam.h"

#include "main/texstate.h"

#include "main/texstorage.h"

#include "main/texturebarrier.h"

#include "main/transformfeedback.h"

#include "main/mtypes.h"

#include "main/varray.h"

#include "main/viewport.h"

#include "main/shaderapi.h"

#include "main/uniforms.h"

#include "main/syncobj.h"

#include "main/formatquery.h"

#include "main/dispatch.h"

#include "vbo/vbo.h"

/**

 * Initialize a context's exec table with pointers to Mesa's supported

 * GL functions.

 *

 * This function depends on ctx->Version.

 *

 * \param ctx  GL context to which \c exec belongs.

 */

void

_mesa_initialize_exec_table(struct gl_context *ctx)

{

   struct _glapi_table *exec;

   exec = ctx->Exec;

   assert(exec != NULL);

   assert(ctx->Version > 0);

   vbo_initialize_exec_dispatch(ctx, exec);

"""

footer = """

}

"""

class PrintCode(gl_XML.gl_print_base):

    def __init__(self):

        gl_XML.gl_print_base.__init__(self)

        self.name = 'gl_genexec.py'

        self.license = license.bsd_license_template % (

            'Copyright (C) 2012 Intel Corporation',

            'Intel Corporation')

    def printRealHeader(self):

        print header

    def printRealFooter(self):

        print footer

    def printBody(self, api):

        # Collect SET_* calls by the condition under which they should

        # be called.

        settings_by_condition = collections.defaultdict(lambda: [])

        for f in api.functionIterateAll():

            if f.exec_flavor not in exec_flavor_map:

                raise Exception(

                    'Unrecognized exec flavor {0!r}'.format(f.exec_flavor))

            condition_parts = []

            if f.desktop:

                if f.deprecated:

                    condition_parts.append('ctx->API == API_OPENGL_COMPAT')

                else:

                    condition_parts.append('_mesa_is_desktop_gl(ctx)')

            if 'es1' in f.api_map:

                condition_parts.append('ctx->API == API_OPENGLES')

            if 'es2' in f.api_map:

                if f.api_map['es2'] == 3:

                    condition_parts.append('_mesa_is_gles3(ctx)')

                else:

                    condition_parts.append('ctx->API == API_OPENGLES2')

            if not condition_parts:

                # This function does not exist in any API.

                continue

            condition = ' || '.join(condition_parts)

            prefix = exec_flavor_map[f.exec_flavor]

            if prefix is None:

                # This function is not implemented, or is dispatched

                # dynamically.

                continue

            settings_by_condition[condition].append(

                'SET_{0}(exec, {1}{0});'.format(f.name, prefix, f.name))

        # Print out an if statement for each unique condition, with

        # the SET_* calls nested inside it.

        for condition in sorted(settings_by_condition.keys()):

            print '   if ({0}) {{'.format(condition)

            for setting in sorted(settings_by_condition[condition]):

                print '      {0}'.format(setting)

            print '   }'

def show_usage():

    print "Usage: %s [-f input_file_name]" % sys.argv[0]

    sys.exit(1)

if __name__ == '__main__':

    file_name = "gl_and_es_API.xml"

    try:

        (args, trail) = getopt.getopt(sys.argv[1:], "m:f:")

    except Exception,e:

        show_usage()

    for (arg,val) in args:

        if arg == "-f":

            file_name = val

    printer = PrintCode()

    api = gl_XML.parse_GL_API(file_name)

    printer.Print(api)