2004-12-01 08:35:37 +00:00
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#!/usr/bin/python2
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# (C) Copyright IBM Corporation 2004
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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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2004-12-03 20:31:59 +00:00
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import glX_XML
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2004-12-01 08:35:37 +00:00
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import license
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import sys, getopt
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2004-12-03 20:31:59 +00:00
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class PrintGlxProtoStubs(glX_XML.GlxProto):
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2004-12-01 08:35:37 +00:00
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def __init__(self):
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2004-12-03 20:31:59 +00:00
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glX_XML.GlxProto.__init__(self)
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2004-12-01 08:35:37 +00:00
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self.last_category = ""
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self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
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self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32]
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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 "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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2004-12-03 20:31:59 +00:00
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glX_XML.printFastcall()
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glX_XML.printNoinline()
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2004-12-01 08:35:37 +00:00
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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.size >= 1) || 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 != 0 ) {
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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 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 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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"""
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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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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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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 (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }
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}
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""" % (n, n + 4, n)
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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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2004-12-21 21:26:36 +00:00
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r = 1
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2004-12-01 08:35:37 +00:00
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else:
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2004-12-21 21:26:36 +00:00
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r = 2
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2004-12-01 08:35:37 +00:00
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2004-12-21 21:26:36 +00:00
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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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2004-12-01 08:35:37 +00:00
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return offset
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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_header(self, f):
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self.common_func_print_just_header(f)
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print ' __GLXcontext * const gc = __glXGetCurrentContext();'
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print ' Display * const dpy = gc->currentDpy;'
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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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print ' const GLuint cmdlen = %s;' % (f.command_length())
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if f.counter != None:
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print ' if (%s < 0) %s' % (f.counter, f.return_string())
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if f.can_be_large:
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print ' if (dpy == NULL) return;'
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print ' if ( ((gc->pc + cmdlen) > gc->bufEnd)'
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print ' || (cmdlen > gc->maxSmallRenderCommandSize)) {'
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print ' (void) __glXFlushRenderBuffer(gc, gc->pc);'
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print ' }'
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else:
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print ' (void) dpy;'
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return
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def printSingleFunction(self, f):
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self.common_func_print_header(f)
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print ' if (dpy != NULL) {'
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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(gc->currentDpy, %s, %s, %s);" % (return_str, output_size, output_str, aa)
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print ' UnlockDisplay(gc->currentDpy); 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 printRenderFunction(self, f):
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2004-12-03 20:24:50 +00:00
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# There is a class of GL functions that take a single pointer
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# as a parameter. This pointer points to a fixed-size chunk
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# of data, and the protocol for this functions is very
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# regular. Since they are so regular and there are so many
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# of them, special case them with generic functions. On
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2004-12-21 21:26:36 +00:00
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# x86, this saves about 26KB in the libGL.so binary.
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2004-12-03 20:24:50 +00:00
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2004-12-01 08:35:37 +00:00
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if f.variable_length_parameter() == None and len(f.fn_parameters) == 1:
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p = f.fn_parameters[0]
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if p.is_pointer:
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[cmdlen, size_string] = f.command_payload_length()
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if cmdlen in self.generic_sizes:
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self.common_func_print_just_header(f)
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print ' generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name)
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print '}'
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print ''
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return
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self.common_func_print_header(f)
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if f.can_be_large:
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print ' if (cmdlen <= gc->maxSmallRenderCommandSize) {'
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indent = " "
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else:
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indent = ""
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print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name())
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self.common_emit_args(f, "gc->pc", indent, 4, 0)
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print '%s gc->pc += cmdlen;' % (indent)
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print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent)
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if f.can_be_large:
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print ' }'
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print ' else {'
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print ' const GLint op = %s;' % (f.opcode_real_name())
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print ' const GLuint cmdlenLarge = cmdlen + 4;'
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print ' (void) memcpy((void *)(gc->pc + 0), (void *)(&op), 4);'
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print ' (void) memcpy((void *)(gc->pc + 4), (void *)(&cmdlenLarge), 4);'
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offset = self.common_emit_args(f, "gc->pc", indent, 8, 1)
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p = f.variable_length_parameter()
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print ' __glXSendLargeCommand(gc, gc->pc, %u, %s, %s);' % (offset + 8, p.name, p.size_string())
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print ' }'
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print '}'
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print ''
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return
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2004-12-03 20:31:59 +00:00
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class PrintGlxProtoInit_c(glX_XML.GlxProto):
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2004-12-01 08:35:37 +00:00
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def __init__(self):
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2004-12-03 20:31:59 +00:00
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glX_XML.GlxProto.__init__(self)
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2004-12-01 08:35:37 +00:00
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self.last_category = ""
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self.license = license.bsd_license_template % ( \
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"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
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def printRealHeader(self):
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print """/**
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* \\file indirect_init.c
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* Initialize indirect rendering dispatch table.
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*
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* \\author Kevin E. Martin <kevin@precisioninsight.com>
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* \\author Brian Paul <brian@precisioninsight.com>
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* \\author Ian Romanick <idr@us.ibm.com>
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*/
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#include "indirect_init.h"
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#include "indirect.h"
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#include "glapi.h"
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/**
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* No-op function used to initialize functions that have no GLX protocol
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* support.
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*/
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static int NoOp(void)
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{
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return 0;
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}
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/**
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* Create and initialize a new GL dispatch table. The table is initialized
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* with GLX indirect rendering protocol functions.
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*/
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__GLapi * __glXNewIndirectAPI( void )
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{
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__GLapi *glAPI;
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GLuint entries;
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entries = _glapi_get_dispatch_table_size();
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glAPI = (__GLapi *) Xmalloc(entries * sizeof(void *));
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/* first, set all entries to point to no-op functions */
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{
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int i;
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void **dispatch = (void **) glAPI;
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for (i = 0; i < entries; i++) {
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dispatch[i] = (void *) NoOp;
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}
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}
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/* now, initialize the entries we understand */"""
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def printRealFooter(self):
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print """
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return glAPI;
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}
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"""
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def printFunction(self, f):
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if f.fn_offset < 0 or f.ignore: return
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if f.category != self.last_category:
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self.last_category = f.category
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print ''
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print ' /* %s */' % (self.last_category)
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print ''
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print ' glAPI->%s = __indirect_gl%s;' % (f.name, f.name)
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2004-12-03 20:31:59 +00:00
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class PrintGlxProtoInit_h(glX_XML.GlxProto):
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2004-12-01 08:35:37 +00:00
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def __init__(self):
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2004-12-03 20:31:59 +00:00
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glX_XML.GlxProto.__init__(self)
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2004-12-01 08:35:37 +00:00
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self.last_category = ""
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self.license = license.bsd_license_template % ( \
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"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
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def printRealHeader(self):
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print """
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/**
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* \\file
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* Prototypes for indirect rendering functions.
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*
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* \\author Kevin E. Martin <kevin@precisioninsight.com>
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* \\author Ian Romanick <idr@us.ibm.com>
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*/
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#if !defined( _INDIRECT_H_ )
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# define _INDIRECT_H_
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"""
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2004-12-03 20:31:59 +00:00
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glX_XML.printVisibility( "HIDDEN", "hidden" )
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2004-12-01 08:35:37 +00:00
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def printRealFooter(self):
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print "# undef HIDDEN"
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print "#endif /* !defined( _INDIRECT_H_ ) */"
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def printFunction(self, f):
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if f.fn_offset < 0 or f.ignore: return
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print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string())
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2004-12-03 20:31:59 +00:00
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class PrintGlxSizeStubs(glX_XML.GlxProto):
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2004-12-01 08:35:37 +00:00
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def __init__(self):
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2004-12-03 20:31:59 +00:00
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glX_XML.GlxProto.__init__(self)
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2004-12-01 08:35:37 +00:00
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self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
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self.aliases = []
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self.glx_enum_sigs = {}
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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_size.h"'
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print ''
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2004-12-03 20:31:59 +00:00
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glX_XML.printPure()
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2004-12-01 08:35:37 +00:00
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print ''
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2004-12-03 20:31:59 +00:00
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glX_XML.printFastcall()
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2004-12-01 08:35:37 +00:00
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print ''
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2004-12-03 20:31:59 +00:00
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glX_XML.printVisibility( "INTERNAL", "internal" )
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2004-12-01 08:35:37 +00:00
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print ''
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print ''
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print '#ifdef HAVE_ALIAS'
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print '# define ALIAS2(from,to) \\'
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print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
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print ' __attribute__ ((alias( # to )));'
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print '# define ALIAS(from,to) ALIAS2( from, __gl ## to ## _size )'
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print '#else'
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print '# define ALIAS(from,to) \\'
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print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
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print ' { return __gl ## to ## _size( e ); }'
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print '#endif'
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print ''
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print ''
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def printRealFooter(self):
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for a in self.aliases:
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print a
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def printFunction(self, f):
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if self.glx_enum_functions.has_key(f.name):
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ef = self.glx_enum_functions[f.name]
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sig = ef.signature();
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if self.glx_enum_sigs.has_key(sig):
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n = self.glx_enum_sigs[sig];
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a = 'ALIAS( %s, %s )' % (f.name, n)
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self.aliases.append(a)
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else:
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ef.Print( f.name )
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|
self.glx_enum_sigs[sig] = f.name;
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|
2004-12-03 20:31:59 +00:00
|
|
|
class PrintGlxSizeStubs_h(glX_XML.GlxProto):
|
2004-12-01 08:35:37 +00:00
|
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|
def __init__(self):
|
2004-12-03 20:31:59 +00:00
|
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|
glX_XML.GlxProto.__init__(self)
|
2004-12-01 08:35:37 +00:00
|
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|
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
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|
|
self.aliases = []
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|
|
self.glx_enum_sigs = {}
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|
|
|
|
|
|
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_
|
|
|
|
|
|
|
|
"""
|
2004-12-03 20:31:59 +00:00
|
|
|
glX_XML.printPure();
|
2004-12-01 08:35:37 +00:00
|
|
|
print ''
|
2004-12-03 20:31:59 +00:00
|
|
|
glX_XML.printFastcall();
|
2004-12-01 08:35:37 +00:00
|
|
|
print ''
|
2004-12-03 20:31:59 +00:00
|
|
|
glX_XML.printVisibility( "INTERNAL", "internal" );
|
2004-12-01 08:35:37 +00:00
|
|
|
print ''
|
|
|
|
|
|
|
|
def printRealFooter(self):
|
|
|
|
print ''
|
|
|
|
print "# undef INTERNAL"
|
|
|
|
print "# undef PURE"
|
|
|
|
print "# undef FASTCALL"
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|
|
|
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]
|
2004-12-01 09:06:34 +00:00
|
|
|
print 'extern INTERNAL PURE FASTCALL GLint __gl%s_size(GLenum);' % (f.name)
|
2004-12-01 08:35:37 +00:00
|
|
|
|
|
|
|
|
|
|
|
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()
|