5f1f229f8d
glX_proto_send.py script. This eliminates ~600 lines of non-generated code. With proper compiler optimization settings, it also decreases the size of libGL.so by about 3KB.
916 lines
26 KiB
Python
916 lines
26 KiB
Python
#!/usr/bin/python2
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# (C) Copyright IBM Corporation 2004, 2005
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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from xml.sax import saxutils
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from xml.sax import make_parser
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from xml.sax.handler import feature_namespaces
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import gl_XML
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import glX_XML
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import license
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import sys, getopt, copy
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def hash_pixel_function(func):
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"""Generate a 'unique' key for a pixel function. The key is based on
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the parameters written in the command packet. This includes any
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padding that might be added for the original function and the 'NULL
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image' flag."""
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[dim, junk, junk, junk, junk] = func.dimensions()
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d = (dim + 1) & ~1
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h = "%uD%uD_" % (d - 1, d)
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for p in func.parameterIterator(1, 1):
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h = "%s%u" % (h, p.size())
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if func.pad_after(p):
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h += "4"
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if func.image.img_null_flag:
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h += "_NF"
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n = func.name.replace("%uD" % (dim), "")
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n = "__glx_%s_%uD%uD" % (n, d - 1, d)
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return [h, n]
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class glXPixelFunctionUtility(glX_XML.glXFunction):
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"""Dummy class used to generate pixel "utility" functions that are
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shared by multiple dimension image functions. For example, these
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objects are used to generate shared functions used to send GLX
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protocol for TexImage1D and TexImage2D, TexSubImage1D and
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TexSubImage2D, etc."""
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def __init__(self, func, name):
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# The parameters to the utility function are the same as the
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# parameters to the real function except for the added "pad"
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# parameters.
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self.name = name
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self.image = copy.copy(func.image)
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self.fn_parameters = []
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for p in gl_XML.glFunction.parameterIterator(func):
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self.fn_parameters.append(p)
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pad_name = func.pad_after(p)
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if pad_name:
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pad = copy.copy(p)
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pad.name = pad_name
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self.fn_parameters.append(pad)
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if self.image.height == None:
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self.image.height = "height"
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if self.image.img_yoff == None:
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self.image.img_yoff = "yoffset"
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if func.image.depth:
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if self.image.extent == None:
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self.image.extent = "extent"
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if self.image.img_woff == None:
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self.image.img_woff = "woffset"
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self.set_return_type( func.fn_return_type )
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self.glx_rop = ~0
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self.can_be_large = func.can_be_large
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self.count_parameters = func.count_parameters
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self.counter = func.counter
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return
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class PrintGlxProtoStubs(glX_XML.GlxProto):
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def __init__(self):
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glX_XML.GlxProto.__init__(self)
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self.last_category = ""
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self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004, 2005", "IBM")
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self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32]
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self.pixel_stubs = {}
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return
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def printRealHeader(self):
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print ''
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print '#include <GL/gl.h>'
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print '#include "indirect.h"'
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print '#include "glxclient.h"'
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print '#include "indirect_size.h"'
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print '#include <GL/glxproto.h>'
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print ''
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print '#define __GLX_PAD(n) (((n) + 3) & ~3)'
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print ''
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glX_XML.printFastcall()
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glX_XML.printNoinline()
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print ''
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print '#if !defined __GNUC__ || __GNUC__ < 3'
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print '# define __builtin_expect(x, y) x'
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print '#endif'
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print ''
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print '/* If the size and opcode values are known at compile-time, this will, on'
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print ' * x86 at least, emit them with a single instruction.'
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print ' */'
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print '#define emit_header(dest, op, size) \\'
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print ' do { union { short s[2]; int i; } temp; \\'
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print ' temp.s[0] = (size); temp.s[1] = (op); \\'
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print ' *((int *)(dest)) = temp.i; } while(0)'
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print ''
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print """static NOINLINE CARD32
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read_reply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array )
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{
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xGLXSingleReply reply;
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(void) _XReply(dpy, (xReply *) & reply, 0, False);
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if (size != 0) {
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if ((reply.length > 0) || reply_is_always_array) {
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const GLint bytes = (reply_is_always_array)
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? (4 * reply.length) : (reply.size * size);
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const GLint extra = 4 - (bytes & 3);
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_XRead(dpy, dest, bytes);
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if ( extra < 4 ) {
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_XEatData(dpy, extra);
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}
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}
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else {
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(void) memcpy( dest, &(reply.pad3), size);
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}
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}
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return reply.retval;
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}
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#define X_GLXSingle 0
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static NOINLINE FASTCALL GLubyte *
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setup_single_request( __GLXcontext * gc, GLint sop, GLint cmdlen )
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{
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xGLXSingleReq * req;
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Display * const dpy = gc->currentDpy;
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(void) __glXFlushRenderBuffer(gc, gc->pc);
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LockDisplay(dpy);
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GetReqExtra(GLXSingle, cmdlen, req);
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req->reqType = gc->majorOpcode;
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req->contextTag = gc->currentContextTag;
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req->glxCode = sop;
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return (GLubyte *)(req) + sz_xGLXSingleReq;
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}
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static NOINLINE FASTCALL GLubyte *
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setup_vendor_request( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen )
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{
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xGLXVendorPrivateReq * req;
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Display * const dpy = gc->currentDpy;
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(void) __glXFlushRenderBuffer(gc, gc->pc);
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LockDisplay(dpy);
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GetReqExtra(GLXVendorPrivate, cmdlen, req);
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req->reqType = gc->majorOpcode;
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req->glxCode = code;
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req->vendorCode = vop;
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req->contextTag = gc->currentContextTag;
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return (GLubyte *)(req) + sz_xGLXVendorPrivateReq;
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}
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const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
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#define zero (__glXDefaultPixelStore+0)
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#define one (__glXDefaultPixelStore+8)
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#define default_pixel_store_1D (__glXDefaultPixelStore+4)
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#define default_pixel_store_1D_size 20
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#define default_pixel_store_2D (__glXDefaultPixelStore+4)
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#define default_pixel_store_2D_size 20
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#define default_pixel_store_3D (__glXDefaultPixelStore+0)
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#define default_pixel_store_3D_size 36
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#define default_pixel_store_4D (__glXDefaultPixelStore+0)
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#define default_pixel_store_4D_size 36
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"""
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for size in self.generic_sizes:
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self.print_generic_function(size)
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return
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def printFunction(self, f):
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if f.fn_offset < 0 or f.handcode or f.ignore: return
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if f.glx_rop != 0 or f.vectorequiv != None:
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if f.image:
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self.printPixelFunction(f)
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else:
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self.printRenderFunction(f)
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elif f.glx_sop != 0 or f.glx_vendorpriv != 0:
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self.printSingleFunction(f)
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else:
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print "/* Missing GLX protocol for %s. */" % (f.name)
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def print_generic_function(self, n):
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size = (n + 3) & ~3
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print """static FASTCALL NOINLINE void
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generic_%u_byte( GLint rop, const void * ptr )
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{
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__GLXcontext * const gc = __glXGetCurrentContext();
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const GLuint cmdlen = %u;
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emit_header(gc->pc, rop, cmdlen);
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(void) memcpy((void *)(gc->pc + 4), ptr, %u);
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gc->pc += cmdlen;
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if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }
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}
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""" % (n, size + 4, size)
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def common_emit_one_arg(self, p, offset, pc, indent, adjust):
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t = p.p_type
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if p.is_array():
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src_ptr = p.name
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else:
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src_ptr = "&" + p.name
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print '%s (void) memcpy((void *)(%s + %u), (void *)(%s), %s);' \
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% (indent, pc, offset + adjust, src_ptr, p.size_string() )
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def common_emit_args(self, f, pc, indent, adjust, skip_vla):
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offset = 0
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if skip_vla:
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r = 1
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else:
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r = 2
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for p in f.parameterIterator(1, r):
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self.common_emit_one_arg(p, offset, pc, indent, adjust)
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offset += p.size()
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return offset
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def pixel_emit_args(self, f, pc, indent, adjust, dim, large):
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"""Emit the arguments for a pixel function. This differs from
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common_emit_args in that pixel functions may require padding
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be inserted (i.e., for the missing width field for
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TexImage1D), and they may also require a 'NULL image' flag
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be inserted before the image data."""
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offset = 0
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for p in f.parameterIterator(1, 1):
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self.common_emit_one_arg(p, offset, pc, indent, adjust)
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offset += p.size()
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if f.pad_after(p):
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print '%s (void) memcpy((void *)(%s + %u), zero, 4);' % (indent, pc, offset + adjust)
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offset += 4
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if f.image.img_null_flag:
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if large:
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print '%s (void) memcpy((void *)(%s + %u), zero, 4);' % (indent, pc, offset + adjust)
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else:
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print '%s (void) memcpy((void *)(%s + %u), (void *)((%s == NULL) ? one : zero), 4);' % (indent, pc, offset + adjust, f.image.name)
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offset += 4
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return offset
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def large_emit_begin(self, indent, f, op_name = None):
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if not op_name:
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op_name = f.opcode_real_name()
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print '%s const GLint op = %s;' % (indent, op_name)
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print '%s const GLuint cmdlenLarge = cmdlen + 4;' % (indent)
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print '%s GLubyte * const pc = __glXFlushRenderBuffer(gc, gc->pc);' % (indent)
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print '%s (void) memcpy((void *)(pc + 0), (void *)(&cmdlenLarge), 4);' % (indent)
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print '%s (void) memcpy((void *)(pc + 4), (void *)(&op), 4);' % (indent)
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return
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def common_func_print_just_header(self, f):
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print '#define %s %d' % (f.opcode_name(), f.opcode_value())
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print '%s' % (f.fn_return_type)
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print '__indirect_gl%s(%s)' % (f.name, f.get_parameter_string())
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print '{'
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def common_func_print_just_start(self, f):
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print ' __GLXcontext * const gc = __glXGetCurrentContext();'
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# The only reason that single and vendor private commands need
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# a variable called 'dpy' is becuase they use the SyncHandle
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# macro. For whatever brain-dead reason, that macro is hard-
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# coded to use a variable called 'dpy' instead of taking a
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# parameter.
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if not f.glx_rop:
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print ' Display * const dpy = gc->currentDpy;'
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skip_condition = "dpy != NULL"
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elif f.can_be_large:
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skip_condition = "gc->currentDpy != NULL"
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else:
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skip_condition = None
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if f.fn_return_type != 'void':
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print ' %s retval = (%s) 0;' % (f.fn_return_type, f.fn_return_type)
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if f.count_parameters != None:
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print ' const GLuint compsize = __gl%s_size(%s);' % (f.name, f.count_parameters)
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elif f.image:
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[dim, w, h, d, junk] = f.dimensions()
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compsize = '__glImageSize(%s, %s, %s, %s, %s, %s)' % (w, h, d, f.image.img_format, f.image.img_type, f.image.img_target)
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if not f.image.img_send_null:
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compsize = '(%s != NULL) ? %s : 0' % (f.image.name, compsize)
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print ' const GLuint compsize = %s;' % (compsize)
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print ' const GLuint cmdlen = %s;' % (f.command_length())
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if f.counter:
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if skip_condition:
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skip_condition = "(%s >= 0) && (%s)" % (f.counter, skip_condition)
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else:
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skip_condition = "%s >= 0" % (f.counter)
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if skip_condition:
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print ' if (__builtin_expect(%s, 1)) {' % (skip_condition)
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return 1
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else:
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return 0
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def common_func_print_header(self, f):
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self.common_func_print_just_header(f)
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return self.common_func_print_just_start(f)
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def printSingleFunction(self, f):
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self.common_func_print_header(f)
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if f.fn_parameters != []:
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pc_decl = "GLubyte const * pc ="
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else:
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pc_decl = "(void)"
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if f.glx_vendorpriv != 0:
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print ' %s setup_vendor_request(gc, %s, %s, cmdlen);' % (pc_decl, f.opcode_real_name(), f.opcode_name())
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else:
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print ' %s setup_single_request(gc, %s, cmdlen);' % (pc_decl, f.opcode_name())
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self.common_emit_args(f, "pc", " ", 0, 0)
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if f.needs_reply():
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if f.output != None:
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output_size = f.output.p_type.size
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output_str = f.output.name
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else:
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output_size = 0
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output_str = "NULL"
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if f.fn_return_type != 'void':
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return_str = " retval = (%s)" % (f.fn_return_type)
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else:
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return_str = " (void)"
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if f.reply_always_array:
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aa = "GL_TRUE"
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else:
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aa = "GL_FALSE"
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print " %s read_reply(dpy, %s, %s, %s);" % (return_str, output_size, output_str, aa)
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print ' UnlockDisplay(dpy); SyncHandle();'
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print ' }'
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print ' %s' % f.return_string()
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print '}'
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print ''
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return
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def printPixelFunction(self, f):
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"""This function could use some major refactoring. :("""
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# There is a code-space optimization that we can do here.
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# Functions that are marked img_pad_dimensions have a version
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# with an odd number of dimensions and an even number of
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# dimensions. TexSubImage1D and TexSubImage2D are examples.
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# We can emit a single function that does both, and have the
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# real functions call the utility function with the correct
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# parameters.
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#
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# The only quirk to this is that utility funcitons will be
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# generated for 3D and 4D functions, but 4D (e.g.,
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# GL_SGIS_texture4D) isn't typically supported. This is
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# probably not an issue. However, it would be possible to
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# look at the total set of functions and determine if there
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# is another function that would actually use the utility
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# function. If not, then fallback to the normal way of
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# generating code.
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if f.image.img_pad_dimensions:
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# Determine the hash key and the name for the utility
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# function that is used to implement the real
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# function.
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[h, n] = hash_pixel_function(f)
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# If the utility function is not yet known, generate
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# it.
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if not self.pixel_stubs.has_key(h):
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self.pixel_stubs[h] = n
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pixel_func = glXPixelFunctionUtility(f, n)
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print 'static void'
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print '%s( unsigned opcode, unsigned dim, %s )' % (n, pixel_func.get_parameter_string())
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print '{'
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if self.common_func_print_just_start(pixel_func):
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indent = " "
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trailer = " }"
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else:
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indent = ""
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trailer = None
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if pixel_func.can_be_large:
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print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent)
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print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent)
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print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent)
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print '%s }' % (indent)
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indent += " "
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[dim, width, height, depth, extent] = pixel_func.dimensions()
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if dim < 3:
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adjust = 20 + 4
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else:
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adjust = 36 + 4
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print '%s emit_header(gc->pc, opcode, cmdlen);' % (indent)
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offset = self.pixel_emit_args(pixel_func, "gc->pc", indent, adjust, dim, 0)
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[s, junk] = pixel_func.command_payload_length()
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pixHeaderPtr = "gc->pc + 4"
|
|
pcPtr = "gc->pc + %u" % (s + 4)
|
|
|
|
if pixel_func.image.img_send_null:
|
|
condition = '(compsize > 0) && (%s != NULL)' % (pixel_func.image.name)
|
|
else:
|
|
condition = 'compsize > 0'
|
|
|
|
print '%s if (%s) {' % (indent, condition)
|
|
print '%s (*gc->fillImage)(gc, dim, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, width, height, depth, pixel_func.image.img_format, pixel_func.image.img_type, pixel_func.image.name, pcPtr, pixHeaderPtr)
|
|
print '%s }' % (indent)
|
|
print '%s else {' % (indent)
|
|
print '%s (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (indent, pixHeaderPtr, dim, dim)
|
|
print '%s }' % (indent)
|
|
|
|
print '%s gc->pc += cmdlen;' % (indent)
|
|
print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent)
|
|
|
|
if f.can_be_large:
|
|
adjust += 4
|
|
|
|
print '%s}' % (indent)
|
|
print '%selse {' % (indent)
|
|
|
|
self.large_emit_begin(indent, pixel_func, "opcode")
|
|
offset = self.pixel_emit_args(pixel_func, "pc", indent, adjust, dim, 1)
|
|
|
|
pixHeaderPtr = "pc + 8"
|
|
pcPtr = "pc + %u" % (s + 8)
|
|
|
|
print '%s __glXSendLargeImage(gc, compsize, dim, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr)
|
|
|
|
print '%s}' % (indent)
|
|
|
|
if trailer: print trailer
|
|
print '}'
|
|
print ''
|
|
|
|
|
|
|
|
# Generate the real function as a call to the
|
|
# utility function.
|
|
|
|
self.common_func_print_just_header(f)
|
|
|
|
[dim, junk, junk, junk, junk] = f.dimensions()
|
|
|
|
p_string = ""
|
|
for p in gl_XML.glFunction.parameterIterator(f):
|
|
p_string += ", " + p.name
|
|
|
|
if f.pad_after(p):
|
|
p_string += ", 1"
|
|
|
|
print ' %s(%s, %u%s );' % (n, f.opcode_name(), dim, p_string)
|
|
print '}'
|
|
print ''
|
|
return
|
|
|
|
|
|
if self.common_func_print_header(f):
|
|
indent = " "
|
|
trailer = " }"
|
|
else:
|
|
indent = ""
|
|
trailer = None
|
|
|
|
|
|
if f.can_be_large:
|
|
print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent)
|
|
print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent)
|
|
print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent)
|
|
print '%s }' % (indent)
|
|
indent += " "
|
|
|
|
[dim, width, height, depth, extent] = f.dimensions()
|
|
|
|
if dim < 3:
|
|
adjust = 20 + 4
|
|
else:
|
|
adjust = 36 + 4
|
|
|
|
|
|
print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name())
|
|
|
|
offset = self.pixel_emit_args(f, "gc->pc", indent, adjust, dim, 0)
|
|
|
|
[s, junk] = f.command_payload_length()
|
|
|
|
pixHeaderPtr = "gc->pc + 4"
|
|
pcPtr = "gc->pc + %u" % (s + 4)
|
|
|
|
if f.image.img_send_null:
|
|
condition = '(compsize > 0) && (%s != NULL)' % (f.image.name)
|
|
else:
|
|
condition = 'compsize > 0'
|
|
|
|
print '%s if (%s) {' % (indent, condition)
|
|
print '%s (*gc->fillImage)(gc, %u, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, dim, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr)
|
|
print '%s }' % (indent)
|
|
print '%s else {' % (indent)
|
|
print '%s (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (indent, pixHeaderPtr, dim, dim)
|
|
print '%s }' % (indent)
|
|
|
|
print '%s gc->pc += cmdlen;' % (indent)
|
|
print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent)
|
|
|
|
if f.can_be_large:
|
|
adjust += 4
|
|
|
|
print '%s}' % (indent)
|
|
print '%selse {' % (indent)
|
|
|
|
self.large_emit_begin(indent, f)
|
|
offset = self.pixel_emit_args(f, "pc", indent, adjust, dim, 1)
|
|
|
|
pixHeaderPtr = "pc + 8"
|
|
pcPtr = "pc + %u" % (s + 8)
|
|
|
|
print '%s __glXSendLargeImage(gc, compsize, %u, %s, %s, %s, %s, %s, %s, %s, %s);' % (indent, dim, width, height, depth, f.image.img_format, f.image.img_type, f.image.name, pcPtr, pixHeaderPtr)
|
|
|
|
print '%s}' % (indent)
|
|
|
|
if trailer: print trailer
|
|
print '}'
|
|
print ''
|
|
return
|
|
|
|
|
|
def printRenderFunction(self, f):
|
|
# There is a class of GL functions that take a single pointer
|
|
# as a parameter. This pointer points to a fixed-size chunk
|
|
# of data, and the protocol for this functions is very
|
|
# regular. Since they are so regular and there are so many
|
|
# of them, special case them with generic functions. On
|
|
# x86, this saves about 26KB in the libGL.so binary.
|
|
|
|
if f.variable_length_parameter() == None and len(f.fn_parameters) == 1:
|
|
p = f.fn_parameters[0]
|
|
if p.is_pointer:
|
|
[cmdlen, size_string] = f.command_payload_length()
|
|
if cmdlen in self.generic_sizes:
|
|
self.common_func_print_just_header(f)
|
|
print ' generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name)
|
|
print '}'
|
|
print ''
|
|
return
|
|
|
|
if self.common_func_print_header(f):
|
|
indent = " "
|
|
trailer = " }"
|
|
else:
|
|
indent = ""
|
|
trailer = None
|
|
|
|
if f.can_be_large:
|
|
print '%s if (cmdlen <= gc->maxSmallRenderCommandSize) {' % (indent)
|
|
print '%s if ( (gc->pc + cmdlen) > gc->bufEnd ) {' % (indent)
|
|
print '%s (void) __glXFlushRenderBuffer(gc, gc->pc);' % (indent)
|
|
print '%s }' % (indent)
|
|
indent += " "
|
|
|
|
print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name())
|
|
|
|
self.common_emit_args(f, "gc->pc", indent, 4, 0)
|
|
print '%s gc->pc += cmdlen;' % (indent)
|
|
print '%s if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent)
|
|
|
|
if f.can_be_large:
|
|
print '%s}' % (indent)
|
|
print '%selse {' % (indent)
|
|
|
|
self.large_emit_begin(indent, f)
|
|
offset = self.common_emit_args(f, "pc", indent, 8, 1)
|
|
|
|
p = f.variable_length_parameter()
|
|
print '%s __glXSendLargeCommand(gc, pc, %u, %s, %s);' % (indent, offset + 8, p.name, p.size_string())
|
|
print '%s}' % (indent)
|
|
|
|
if trailer: print trailer
|
|
print '}'
|
|
print ''
|
|
return
|
|
|
|
|
|
class PrintGlxProtoInit_c(glX_XML.GlxProto):
|
|
def __init__(self):
|
|
glX_XML.GlxProto.__init__(self)
|
|
self.last_category = ""
|
|
self.license = license.bsd_license_template % ( \
|
|
"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
|
|
(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
|
|
|
|
|
|
def printRealHeader(self):
|
|
print """/**
|
|
* \\file indirect_init.c
|
|
* Initialize indirect rendering dispatch table.
|
|
*
|
|
* \\author Kevin E. Martin <kevin@precisioninsight.com>
|
|
* \\author Brian Paul <brian@precisioninsight.com>
|
|
* \\author Ian Romanick <idr@us.ibm.com>
|
|
*/
|
|
|
|
#include "indirect_init.h"
|
|
#include "indirect.h"
|
|
#include "glapi.h"
|
|
|
|
|
|
/**
|
|
* No-op function used to initialize functions that have no GLX protocol
|
|
* support.
|
|
*/
|
|
static int NoOp(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Create and initialize a new GL dispatch table. The table is initialized
|
|
* with GLX indirect rendering protocol functions.
|
|
*/
|
|
__GLapi * __glXNewIndirectAPI( void )
|
|
{
|
|
__GLapi *glAPI;
|
|
GLuint entries;
|
|
|
|
entries = _glapi_get_dispatch_table_size();
|
|
glAPI = (__GLapi *) Xmalloc(entries * sizeof(void *));
|
|
|
|
/* first, set all entries to point to no-op functions */
|
|
{
|
|
int i;
|
|
void **dispatch = (void **) glAPI;
|
|
for (i = 0; i < entries; i++) {
|
|
dispatch[i] = (void *) NoOp;
|
|
}
|
|
}
|
|
|
|
/* now, initialize the entries we understand */"""
|
|
|
|
def printRealFooter(self):
|
|
print """
|
|
return glAPI;
|
|
}
|
|
"""
|
|
|
|
def printFunction(self, f):
|
|
if f.fn_offset < 0 or f.ignore: return
|
|
|
|
if f.category != self.last_category:
|
|
self.last_category = f.category
|
|
print ''
|
|
print ' /* %s */' % (self.last_category)
|
|
print ''
|
|
|
|
print ' glAPI->%s = __indirect_gl%s;' % (f.name, f.name)
|
|
|
|
|
|
class PrintGlxProtoInit_h(glX_XML.GlxProto):
|
|
def __init__(self):
|
|
glX_XML.GlxProto.__init__(self)
|
|
self.last_category = ""
|
|
self.license = license.bsd_license_template % ( \
|
|
"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
|
|
(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
|
|
|
|
|
|
def printRealHeader(self):
|
|
print """
|
|
/**
|
|
* \\file
|
|
* Prototypes for indirect rendering functions.
|
|
*
|
|
* \\author Kevin E. Martin <kevin@precisioninsight.com>
|
|
* \\author Ian Romanick <idr@us.ibm.com>
|
|
*/
|
|
|
|
#if !defined( _INDIRECT_H_ )
|
|
# define _INDIRECT_H_
|
|
|
|
"""
|
|
glX_XML.printVisibility( "HIDDEN", "hidden" )
|
|
|
|
|
|
def printRealFooter(self):
|
|
print "# undef HIDDEN"
|
|
print "#endif /* !defined( _INDIRECT_H_ ) */"
|
|
|
|
def printFunction(self, f):
|
|
if f.fn_offset < 0 or f.ignore: return
|
|
print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string())
|
|
|
|
|
|
class PrintGlxSizeStubs(glX_XML.GlxProto):
|
|
def __init__(self):
|
|
glX_XML.GlxProto.__init__(self)
|
|
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
|
self.aliases = []
|
|
self.glx_enum_sigs = {}
|
|
|
|
def printRealHeader(self):
|
|
print ''
|
|
print '#include <GL/gl.h>'
|
|
print '#include "indirect_size.h"'
|
|
|
|
print ''
|
|
glX_XML.printPure()
|
|
print ''
|
|
glX_XML.printFastcall()
|
|
print ''
|
|
glX_XML.printVisibility( "INTERNAL", "internal" )
|
|
print ''
|
|
print ''
|
|
print '#ifdef HAVE_ALIAS'
|
|
print '# define ALIAS2(from,to) \\'
|
|
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
|
|
print ' __attribute__ ((alias( # to )));'
|
|
print '# define ALIAS(from,to) ALIAS2( from, __gl ## to ## _size )'
|
|
print '#else'
|
|
print '# define ALIAS(from,to) \\'
|
|
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
|
|
print ' { return __gl ## to ## _size( e ); }'
|
|
print '#endif'
|
|
print ''
|
|
print ''
|
|
|
|
def printRealFooter(self):
|
|
for a in self.aliases:
|
|
print a
|
|
|
|
def printFunction(self, f):
|
|
if self.glx_enum_functions.has_key(f.name):
|
|
ef = self.glx_enum_functions[f.name]
|
|
|
|
sig = ef.signature();
|
|
if self.glx_enum_sigs.has_key(sig):
|
|
n = self.glx_enum_sigs[sig];
|
|
a = 'ALIAS( %s, %s )' % (f.name, n)
|
|
self.aliases.append(a)
|
|
else:
|
|
ef.Print( f.name )
|
|
self.glx_enum_sigs[sig] = f.name;
|
|
|
|
|
|
|
|
class PrintGlxSizeStubs_h(glX_XML.GlxProto):
|
|
def __init__(self):
|
|
glX_XML.GlxProto.__init__(self)
|
|
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
|
self.aliases = []
|
|
self.glx_enum_sigs = {}
|
|
|
|
def printRealHeader(self):
|
|
print """
|
|
/**
|
|
* \\file
|
|
* Prototypes for functions used to determine the number of data elements in
|
|
* various GLX protocol messages.
|
|
*
|
|
* \\author Ian Romanick <idr@us.ibm.com>
|
|
*/
|
|
|
|
#if !defined( _GLXSIZE_H_ )
|
|
# define _GLXSIZE_H_
|
|
|
|
"""
|
|
glX_XML.printPure();
|
|
print ''
|
|
glX_XML.printFastcall();
|
|
print ''
|
|
glX_XML.printVisibility( "INTERNAL", "internal" );
|
|
print ''
|
|
|
|
def printRealFooter(self):
|
|
print ''
|
|
print "# undef INTERNAL"
|
|
print "# undef PURE"
|
|
print "# undef FASTCALL"
|
|
print "#endif /* !defined( _GLXSIZE_H_ ) */"
|
|
|
|
|
|
def printFunction(self, f):
|
|
if self.glx_enum_functions.has_key(f.name):
|
|
ef = self.glx_enum_functions[f.name]
|
|
print 'extern INTERNAL PURE FASTCALL GLint __gl%s_size(GLenum);' % (f.name)
|
|
|
|
|
|
def show_usage():
|
|
print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0]
|
|
sys.exit(1)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
file_name = "gl_API.xml"
|
|
|
|
try:
|
|
(args, trail) = getopt.getopt(sys.argv[1:], "f:m:")
|
|
except Exception,e:
|
|
show_usage()
|
|
|
|
mode = "proto"
|
|
for (arg,val) in args:
|
|
if arg == "-f":
|
|
file_name = val
|
|
elif arg == "-m":
|
|
mode = val
|
|
|
|
if mode == "proto":
|
|
dh = PrintGlxProtoStubs()
|
|
elif mode == "init_c":
|
|
dh = PrintGlxProtoInit_c()
|
|
elif mode == "init_h":
|
|
dh = PrintGlxProtoInit_h()
|
|
elif mode == "size_c":
|
|
dh = PrintGlxSizeStubs()
|
|
elif mode == "size_h":
|
|
dh = PrintGlxSizeStubs_h()
|
|
else:
|
|
show_usage()
|
|
|
|
parser = make_parser()
|
|
parser.setFeature(feature_namespaces, 0)
|
|
parser.setContentHandler(dh)
|
|
|
|
f = open(file_name)
|
|
|
|
dh.printHeader()
|
|
parser.parse(f)
|
|
dh.printFooter()
|