svn merge ^/branches/released

1 files changed, 1042 insertions, 0 deletions

diff --git a/mesalib/src/mesa/glapi/glX_proto_send.py b/mesalib/src/mesa/glapi/glX_proto_send.py
new file mode 100644
index 000000000..daca1b767
--- /dev/null
+++ b/mesalib/src/mesa/glapi/glX_proto_send.py
@@ -0,0 +1,1042 @@
+#!/usr/bin/env python
+
+# (C) Copyright IBM Corporation 2004, 2005
+# All Rights Reserved.
+#
+# 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
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
+# IBM AND/OR ITS SUPPLIERS 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.
+#
+# Authors:
+#    Ian Romanick <idr@us.ibm.com>
+#    Jeremy Kolb <jkolb@brandeis.edu>
+
+import gl_XML, glX_XML, glX_proto_common, license
+import sys, getopt, copy, string
+
+def convertStringForXCB(str):
+    tmp = ""
+    special = [ "ARB" ]
+    i = 0
+    while i < len(str):
+        if str[i:i+3] in special:
+            tmp = '%s_%s' % (tmp, string.lower(str[i:i+3]))
+            i = i + 2;
+        elif str[i].isupper():
+            tmp = '%s_%s' % (tmp, string.lower(str[i]))
+        else:
+            tmp = '%s%s' % (tmp, str[i])
+        i += 1
+    return tmp
+
+def hash_pixel_function(func):
+	"""Generate a 'unique' key for a pixel function.  The key is based on
+	the parameters written in the command packet.  This includes any
+	padding that might be added for the original function and the 'NULL
+	image' flag."""
+
+
+	h = ""
+	hash_pre = ""
+	hash_suf = ""
+	for param in func.parameterIterateGlxSend():
+		if param.is_image():
+			[dim, junk, junk, junk, junk] = param.get_dimensions()
+
+			d = (dim + 1) & ~1
+			hash_pre = "%uD%uD_" % (d - 1, d)
+
+			if param.img_null_flag:
+				hash_suf = "_NF"
+
+		h += "%u" % (param.size())
+
+		if func.pad_after(param):
+			h += "4"
+
+
+	n = func.name.replace("%uD" % (dim), "")
+	n = "__glx_%s_%uD%uD" % (n, d - 1, d)
+
+	h = hash_pre + h + hash_suf
+	return [h, n]
+
+
+class glx_pixel_function_stub(glX_XML.glx_function):
+	"""Dummy class used to generate pixel "utility" functions that are
+	shared by multiple dimension image functions.  For example, these
+	objects are used to generate shared functions used to send GLX
+	protocol for TexImage1D and TexImage2D, TexSubImage1D and
+	TexSubImage2D, etc."""
+
+	def __init__(self, func, name):
+		# The parameters to the utility function are the same as the
+		# parameters to the real function except for the added "pad"
+		# parameters.
+
+		self.name = name
+		self.images = []
+		self.parameters = []
+		self.parameters_by_name = {}
+		for _p in func.parameterIterator():
+			p = copy.copy(_p)
+			self.parameters.append(p)
+			self.parameters_by_name[ p.name ] = p
+
+
+			if p.is_image():
+				self.images.append(p)
+				p.height = "height"
+
+				if p.img_yoff == None:
+					p.img_yoff = "yoffset"
+
+				if p.depth:
+					if p.extent == None:
+						p.extent = "extent"
+
+					if p.img_woff == None:
+						p.img_woff = "woffset"
+
+
+			pad_name = func.pad_after(p)
+			if pad_name:
+				pad = copy.copy(p)
+				pad.name = pad_name
+				self.parameters.append(pad)
+				self.parameters_by_name[ pad.name ] = pad
+				
+
+		self.return_type = func.return_type
+
+		self.glx_rop = ~0
+		self.glx_sop = 0
+		self.glx_vendorpriv = 0
+
+		self.glx_doubles_in_order = func.glx_doubles_in_order
+
+		self.vectorequiv = None
+		self.output = None
+		self.can_be_large = func.can_be_large
+		self.reply_always_array = func.reply_always_array
+		self.dimensions_in_reply = func.dimensions_in_reply
+		self.img_reset = None
+
+		self.server_handcode = 0
+		self.client_handcode = 0
+		self.ignore = 0
+
+		self.count_parameter_list = func.count_parameter_list
+		self.counter_list = func.counter_list
+		self.offsets_calculated = 0
+		return
+
+
+class PrintGlxProtoStubs(glX_proto_common.glx_print_proto):
+	def __init__(self):
+		glX_proto_common.glx_print_proto.__init__(self)
+		self.name = "glX_proto_send.py (from Mesa)"
+		self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004, 2005", "IBM")
+
+
+		self.last_category = ""
+		self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32]
+		self.pixel_stubs = {}
+		self.debug = 0
+		return
+
+	def printRealHeader(self):
+		print ''
+		print '#include <GL/gl.h>'
+		print '#include "indirect.h"'
+		print '#include "glxclient.h"'
+		print '#include "indirect_size.h"'
+		print '#include "dispatch.h"'
+		print '#include "glapi.h"'
+		print '#include "glthread.h"'
+		print '#include <GL/glxproto.h>'
+		print '#ifdef USE_XCB'
+		print '#include <X11/Xlib-xcb.h>'
+		print '#include <xcb/xcb.h>'
+		print '#include <xcb/glx.h>'
+		print '#endif /* USE_XCB */'
+
+		print ''
+		print '#define __GLX_PAD(n) (((n) + 3) & ~3)'
+		print ''
+		self.printFastcall()
+		self.printNoinline()
+		print ''
+		print '#if !defined __GNUC__ || __GNUC__ < 3'
+		print '#  define __builtin_expect(x, y) x'
+		print '#endif'
+		print ''
+		print '/* If the size and opcode values are known at compile-time, this will, on'
+		print ' * x86 at least, emit them with a single instruction.'
+		print ' */'
+		print '#define emit_header(dest, op, size)            \\'
+		print '    do { union { short s[2]; int i; } temp;    \\'
+		print '         temp.s[0] = (size); temp.s[1] = (op); \\'
+		print '         *((int *)(dest)) = temp.i; } while(0)'
+		print ''
+		print """NOINLINE CARD32
+__glXReadReply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array )
+{
+    xGLXSingleReply reply;
+    
+    (void) _XReply(dpy, (xReply *) & reply, 0, False);
+    if (size != 0) {
+        if ((reply.length > 0) || reply_is_always_array) {
+            const GLint bytes = (reply_is_always_array) 
+              ? (4 * reply.length) : (reply.size * size);
+            const GLint extra = 4 - (bytes & 3);
+
+            _XRead(dpy, dest, bytes);
+            if ( extra < 4 ) {
+                _XEatData(dpy, extra);
+            }
+        }
+        else {
+            (void) memcpy( dest, &(reply.pad3), size);
+        }
+    }
+
+    return reply.retval;
+}
+
+NOINLINE void
+__glXReadPixelReply( Display *dpy, __GLXcontext * gc, unsigned max_dim,
+    GLint width, GLint height, GLint depth, GLenum format, GLenum type,
+    void * dest, GLboolean dimensions_in_reply )
+{
+    xGLXSingleReply reply;
+    GLint size;
+    
+    (void) _XReply(dpy, (xReply *) & reply, 0, False);
+
+    if ( dimensions_in_reply ) {
+        width  = reply.pad3;
+        height = reply.pad4;
+        depth  = reply.pad5;
+	
+	if ((height == 0) || (max_dim < 2)) { height = 1; }
+	if ((depth  == 0) || (max_dim < 3)) { depth  = 1; }
+    }
+
+    size = reply.length * 4;
+    if (size != 0) {
+        void * buf = Xmalloc( size );
+
+        if ( buf == NULL ) {
+            _XEatData(dpy, size);
+            __glXSetError(gc, GL_OUT_OF_MEMORY);
+        }
+        else {
+            const GLint extra = 4 - (size & 3);
+
+            _XRead(dpy, buf, size);
+            if ( extra < 4 ) {
+                _XEatData(dpy, extra);
+            }
+
+            __glEmptyImage(gc, 3, width, height, depth, format, type,
+                           buf, dest);
+            Xfree(buf);
+        }
+    }
+}
+
+#define X_GLXSingle 0
+
+NOINLINE FASTCALL GLubyte *
+__glXSetupSingleRequest( __GLXcontext * gc, GLint sop, GLint cmdlen )
+{
+    xGLXSingleReq * req;
+    Display * const dpy = gc->currentDpy;
+
+    (void) __glXFlushRenderBuffer(gc, gc->pc);
+    LockDisplay(dpy);
+    GetReqExtra(GLXSingle, cmdlen, req);
+    req->reqType = gc->majorOpcode;
+    req->contextTag = gc->currentContextTag;
+    req->glxCode = sop;
+    return (GLubyte *)(req) + sz_xGLXSingleReq;
+}
+
+NOINLINE FASTCALL GLubyte *
+__glXSetupVendorRequest( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen )
+{
+    xGLXVendorPrivateReq * req;
+    Display * const dpy = gc->currentDpy;
+
+    (void) __glXFlushRenderBuffer(gc, gc->pc);
+    LockDisplay(dpy);
+    GetReqExtra(GLXVendorPrivate, cmdlen, req);
+    req->reqType = gc->majorOpcode;
+    req->glxCode = code;
+    req->vendorCode = vop;
+    req->contextTag = gc->currentContextTag;
+    return (GLubyte *)(req) + sz_xGLXVendorPrivateReq;
+}
+
+const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
+
+#define zero                        (__glXDefaultPixelStore+0)
+#define one                         (__glXDefaultPixelStore+8)
+#define default_pixel_store_1D      (__glXDefaultPixelStore+4)
+#define default_pixel_store_1D_size 20
+#define default_pixel_store_2D      (__glXDefaultPixelStore+4)
+#define default_pixel_store_2D_size 20
+#define default_pixel_store_3D      (__glXDefaultPixelStore+0)
+#define default_pixel_store_3D_size 36
+#define default_pixel_store_4D      (__glXDefaultPixelStore+0)
+#define default_pixel_store_4D_size 36
+"""
+
+		for size in self.generic_sizes:
+			self.print_generic_function(size)
+		return
+
+
+	def printBody(self, api):
+
+		self.pixel_stubs = {}
+		generated_stubs = []
+
+		for func in api.functionIterateGlx():
+			if func.client_handcode: continue
+
+			# If the function is a pixel function with a certain
+			# GLX protocol signature, create a fake stub function
+			# for it.  For example, create a single stub function
+			# that is used to implement both glTexImage1D and
+			# glTexImage2D.
+
+			if func.glx_rop != 0:
+				do_it = 0
+				for image in func.get_images():
+					if image.img_pad_dimensions:
+						do_it = 1
+						break
+
+
+				if do_it:
+					[h, n] = hash_pixel_function(func)
+
+
+					self.pixel_stubs[ func.name ] = n
+					if h not in generated_stubs:
+						generated_stubs.append(h)
+
+						fake_func = glx_pixel_function_stub( func, n )
+						self.printFunction(fake_func, fake_func.name)
+
+
+			self.printFunction(func, func.name)
+			if func.glx_sop and func.glx_vendorpriv:
+				self.printFunction(func, func.glx_vendorpriv_names[0])
+
+		return
+
+
+	def printFunction(self, func, name):
+		footer = '}\n'
+		if func.glx_rop == ~0:
+			print 'static %s' % (func.return_type)
+			print '%s( unsigned opcode, unsigned dim, %s )' % (func.name, func.get_parameter_string())
+			print '{'
+		else:
+			if func.has_different_protocol(name):
+				if func.return_type == "void":
+					ret_string = ''
+				else:
+					ret_string = "return "
+
+				func_name = func.static_glx_name(name)
+				print '#define %s %d' % (func.opcode_vendor_name(name), func.glx_vendorpriv)
+				print '%s gl%s(%s)' % (func.return_type, func_name, func.get_parameter_string())
+				print '{'
+				print '    __GLXcontext * const gc = __glXGetCurrentContext();'
+				print ''
+				print '#ifdef GLX_DIRECT_RENDERING'
+				print '    if (gc->driContext) {'
+				print '    %sCALL_%s(GET_DISPATCH(), (%s));' % (ret_string, func.name, func.get_called_parameter_string())
+				print '    } else'
+				print '#endif'
+				print '    {'
+
+				footer = '}\n}\n'
+			else:
+				print '#define %s %d' % (func.opcode_name(), func.opcode_value())
+
+				print '%s __indirect_gl%s(%s)' % (func.return_type, name, func.get_parameter_string())
+				print '{'
+
+
+		if func.glx_rop != 0 or func.vectorequiv != None:
+			if len(func.images):
+				self.printPixelFunction(func)
+			else:
+				self.printRenderFunction(func)
+		elif func.glx_sop != 0 or func.glx_vendorpriv != 0:
+			self.printSingleFunction(func, name)
+			pass
+		else:
+			print "/* Missing GLX protocol for %s. */" % (name)
+
+		print footer
+		return
+
+
+	def print_generic_function(self, n):
+		size = (n + 3) & ~3
+		print """static FASTCALL NOINLINE void
+generic_%u_byte( GLint rop, const void * ptr )
+{
+    __GLXcontext * const gc = __glXGetCurrentContext();
+    const GLuint cmdlen = %u;
+
+    emit_header(gc->pc, rop, cmdlen);
+    (void) memcpy((void *)(gc->pc + 4), ptr, %u);
+    gc->pc += cmdlen;
+    if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }
+}
+""" % (n, size + 4, size)
+		return
+
+
+	def common_emit_one_arg(self, p, pc, adjust, extra_offset):
+		if p.is_array():
+			src_ptr = p.name
+		else:
+			src_ptr = "&" + p.name
+
+		if p.is_padding:
+			print '(void) memset((void *)(%s + %u), 0, %s);' \
+			    % (pc, p.offset + adjust, p.size_string() )
+		elif not extra_offset:
+			print '(void) memcpy((void *)(%s + %u), (void *)(%s), %s);' \
+			    % (pc, p.offset + adjust, src_ptr, p.size_string() )
+		else:
+			print '(void) memcpy((void *)(%s + %u + %s), (void *)(%s), %s);' \
+			    % (pc, p.offset + adjust, extra_offset, src_ptr, p.size_string() )
+
+	def common_emit_args(self, f, pc, adjust, skip_vla):
+		extra_offset = None
+
+		for p in f.parameterIterateGlxSend( not skip_vla ):
+			if p.name != f.img_reset:
+				self.common_emit_one_arg(p, pc, adjust, extra_offset)
+				
+				if p.is_variable_length():
+					temp = p.size_string()
+					if extra_offset:
+						extra_offset += " + %s" % (temp)
+					else:
+						extra_offset = temp
+
+		return
+
+
+	def pixel_emit_args(self, f, pc, large):
+		"""Emit the arguments for a pixel function.  This differs from
+		common_emit_args in that pixel functions may require padding
+		be inserted (i.e., for the missing width field for
+		TexImage1D), and they may also require a 'NULL image' flag
+		be inserted before the image data."""
+
+		if large:
+			adjust = 8
+		else:
+			adjust = 4
+
+		for param in f.parameterIterateGlxSend():
+			if not param.is_image():
+				self.common_emit_one_arg(param, pc, adjust, None)
+
+				if f.pad_after(param):
+					print '(void) memcpy((void *)(%s + %u), zero, 4);' % (pc, (param.offset + param.size()) + adjust)
+
+			else:
+				[dim, width, height, depth, extent] = param.get_dimensions()
+				if f.glx_rop == ~0:
+					dim_str = "dim"
+				else:
+					dim_str = str(dim)
+
+				if param.is_padding:
+					print '(void) memset((void *)(%s + %u), 0, %s);' \
+					% (pc, (param.offset - 4) + adjust, param.size_string() )
+
+				if param.img_null_flag:
+					if large:
+						print '(void) memcpy((void *)(%s + %u), zero, 4);' % (pc, (param.offset - 4) + adjust)
+					else:
+						print '(void) memcpy((void *)(%s + %u), (void *)((%s == NULL) ? one : zero), 4);' % (pc, (param.offset - 4) + adjust, param.name)
+
+
+				pixHeaderPtr = "%s + %u" % (pc, adjust)
+				pcPtr = "%s + %u" % (pc, param.offset + adjust)
+
+				if not large:
+					if param.img_send_null:
+						condition = '(compsize > 0) && (%s != NULL)' % (param.name)
+					else:
+						condition = 'compsize > 0'
+
+					print 'if (%s) {' % (condition)
+					print '    (*gc->fillImage)(gc, %s, %s, %s, %s, %s, %s, %s, %s, %s);' % (dim_str, width, height, depth, param.img_format, param.img_type, param.name, pcPtr, pixHeaderPtr)
+					print '} else {'
+					print '    (void) memcpy( %s, default_pixel_store_%uD, default_pixel_store_%uD_size );' % (pixHeaderPtr, dim, dim)
+					print '}'
+				else:
+					print '__glXSendLargeImage(gc, compsize, %s, %s, %s, %s, %s, %s, %s, %s, %s);' % (dim_str, width, height, depth, param.img_format, param.img_type, param.name, pcPtr, pixHeaderPtr)
+
+		return
+
+
+	def large_emit_begin(self, f, op_name = None):
+		if not op_name:
+			op_name = f.opcode_real_name()
+
+		print 'const GLint op = %s;' % (op_name)
+		print 'const GLuint cmdlenLarge = cmdlen + 4;'
+		print 'GLubyte * const pc = __glXFlushRenderBuffer(gc, gc->pc);'
+		print '(void) memcpy((void *)(pc + 0), (void *)(&cmdlenLarge), 4);'
+		print '(void) memcpy((void *)(pc + 4), (void *)(&op), 4);'
+		return
+
+
+	def common_func_print_just_start(self, f, name):
+		print '    __GLXcontext * const gc = __glXGetCurrentContext();'
+
+		# The only reason that single and vendor private commands need
+		# a variable called 'dpy' is becuase they use the SyncHandle
+		# macro.  For whatever brain-dead reason, that macro is hard-
+		# coded to use a variable called 'dpy' instead of taking a
+		# parameter.
+
+		# FIXME Simplify the logic related to skip_condition and
+		# FIXME condition_list in this function.  Basically, remove
+		# FIXME skip_condition, and just append the "dpy != NULL" type
+		# FIXME condition to condition_list from the start.  The only
+		# FIXME reason it's done in this confusing way now is to
+		# FIXME minimize the diffs in the generated code.
+
+		if not f.glx_rop:
+			for p in f.parameterIterateOutputs():
+				if p.is_image() and (p.img_format != "GL_COLOR_INDEX" or p.img_type != "GL_BITMAP"):
+					print '    const __GLXattribute * const state = gc->client_state_private;'
+					break
+
+			print '    Display * const dpy = gc->currentDpy;'
+			skip_condition = "dpy != NULL"
+		elif f.can_be_large:
+			skip_condition = "gc->currentDpy != NULL"
+		else:
+			skip_condition = None
+
+
+		if f.return_type != 'void':
+			print '    %s retval = (%s) 0;' % (f.return_type, f.return_type)
+
+
+		if name != None and name not in f.glx_vendorpriv_names:
+			print '#ifndef USE_XCB'
+		self.emit_packet_size_calculation(f, 0)
+		if name != None and name not in f.glx_vendorpriv_names:
+			print '#endif'
+
+		condition_list = []
+		for p in f.parameterIterateCounters():
+			condition_list.append( "%s >= 0" % (p.name) )
+			# 'counter' parameters cannot be negative
+			print "    if (%s < 0) {" % p.name
+			print "        __glXSetError(gc, GL_INVALID_VALUE);"
+			if f.return_type != 'void':
+				print "        return 0;"
+			else:
+				print "        return;"
+			print "    }"
+
+		if skip_condition:
+			condition_list.append( skip_condition )
+
+		if len( condition_list ) > 0:
+			if len( condition_list ) > 1:
+				skip_condition = "(%s)" % (string.join( condition_list, ") && (" ))
+			else:
+				skip_condition = "%s" % (condition_list.pop(0))
+
+			print '    if (__builtin_expect(%s, 1)) {' % (skip_condition)
+			return 1
+		else:
+			return 0
+
+
+	def printSingleFunction(self, f, name):
+		self.common_func_print_just_start(f, name)
+
+		if self.debug:
+			print '        printf( "Enter %%s...\\n", "gl%s" );' % (f.name)
+
+		if name not in f.glx_vendorpriv_names:
+
+			# XCB specific:
+			print '#ifdef USE_XCB'
+			if self.debug:
+				print '        printf("\\tUsing XCB.\\n");'
+			print '        xcb_connection_t *c = XGetXCBConnection(dpy);'
+			print '        (void) __glXFlushRenderBuffer(gc, gc->pc);'
+			xcb_name = 'xcb_glx%s' % convertStringForXCB(name)
+
+			iparams=[]
+			extra_iparams = []
+			output = None
+			for p in f.parameterIterator():
+				if p.is_output:
+					output = p
+
+					if p.is_image():
+						if p.img_format != "GL_COLOR_INDEX" or p.img_type != "GL_BITMAP":
+							extra_iparams.append("state->storePack.swapEndian")
+						else:
+							extra_iparams.append("0")
+					
+						# Hardcode this in.  lsb_first param (apparently always GL_FALSE)
+						# also present in GetPolygonStipple, but taken care of above.
+						if xcb_name == "xcb_glx_read_pixels": 
+							extra_iparams.append("0")
+				else:
+					iparams.append(p.name)
+
+
+			xcb_request = '%s(%s)' % (xcb_name, ", ".join(["c", "gc->currentContextTag"] + iparams + extra_iparams))
+
+			if f.needs_reply():
+				print '        %s_reply_t *reply = %s_reply(c, %s, NULL);' % (xcb_name, xcb_name, xcb_request)
+				if output and f.reply_always_array:
+					print '        (void)memcpy(%s, %s_data(reply), %s_data_length(reply) * sizeof(%s));' % (output.name, xcb_name, xcb_name, output.get_base_type_string())
+
+				elif output and not f.reply_always_array:
+					if not output.is_image():
+						print '        if (%s_data_length(reply) == 0)' % (xcb_name)
+						print '            (void)memcpy(%s, &reply->datum, sizeof(reply->datum));' % (output.name)
+						print '        else'
+					print '        (void)memcpy(%s, %s_data(reply), %s_data_length(reply) * sizeof(%s));' % (output.name, xcb_name, xcb_name, output.get_base_type_string())
+
+
+				if f.return_type != 'void':
+					print '        retval = reply->ret_val;'
+				print '        free(reply);'
+			else:
+				print '        ' + xcb_request + ';'
+			print '#else'
+			# End of XCB specific.
+
+
+		if f.parameters != []:
+			pc_decl = "GLubyte const * pc ="
+		else:
+			pc_decl = "(void)"
+
+		if name in f.glx_vendorpriv_names:
+			print '        %s __glXSetupVendorRequest(gc, %s, %s, cmdlen);' % (pc_decl, f.opcode_real_name(), f.opcode_vendor_name(name))
+		else:
+			print '        %s __glXSetupSingleRequest(gc, %s, cmdlen);' % (pc_decl, f.opcode_name())
+
+		self.common_emit_args(f, "pc", 0, 0)
+
+		images = f.get_images()
+
+		for img in images:
+			if img.is_output:
+				o = f.command_fixed_length() - 4
+				print '        *(int32_t *)(pc + %u) = 0;' % (o)
+				if img.img_format != "GL_COLOR_INDEX" or img.img_type != "GL_BITMAP":
+					print '        * (int8_t *)(pc + %u) = state->storePack.swapEndian;' % (o)
+		
+				if f.img_reset:
+					print '        * (int8_t *)(pc + %u) = %s;' % (o + 1, f.img_reset)
+
+
+		return_name = ''
+		if f.needs_reply():
+			if f.return_type != 'void':
+				return_name = " retval"
+				return_str = " retval = (%s)" % (f.return_type)
+			else:
+				return_str = " (void)"
+
+			got_reply = 0
+
+			for p in f.parameterIterateOutputs():
+				if p.is_image():
+					[dim, w, h, d, junk] = p.get_dimensions()
+					if f.dimensions_in_reply:
+						print "        __glXReadPixelReply(dpy, gc, %u, 0, 0, 0, %s, %s, %s, GL_TRUE);" % (dim, p.img_format, p.img_type, p.name)
+					else:
+						print "        __glXReadPixelReply(dpy, gc, %u, %s, %s, %s, %s, %s, %s, GL_FALSE);" % (dim, w, h, d, p.img_format, p.img_type, p.name)
+
+					got_reply = 1
+				else:
+					if f.reply_always_array:
+						aa = "GL_TRUE"
+					else:
+						aa = "GL_FALSE"
+
+					# gl_parameter.size() returns the size
+					# of the entire data item.  If the
+					# item is a fixed-size array, this is
+					# the size of the whole array.  This
+					# is not what __glXReadReply wants. It
+					# wants the size of a single data
+					# element in the reply packet.
+					# Dividing by the array size (1 for
+					# non-arrays) gives us this.
+
+					s = p.size() / p.get_element_count()
+					print "       %s __glXReadReply(dpy, %s, %s, %s);" % (return_str, s, p.name, aa)
+					got_reply = 1
+
+
+			# If a reply wasn't read to fill an output parameter,
+			# read a NULL reply to get the return value.
+
+			if not got_reply:
+				print "       %s __glXReadReply(dpy, 0, NULL, GL_FALSE);" % (return_str)
+
+
+		elif self.debug:
+			# Only emit the extra glFinish call for functions
+			# that don't already require a reply from the server.
+			print '        __indirect_glFinish();'
+
+		if self.debug:
+			print '        printf( "Exit %%s.\\n", "gl%s" );' % (name)
+
+
+		print '        UnlockDisplay(dpy); SyncHandle();'
+
+		if name not in f.glx_vendorpriv_names:
+			print '#endif /* USE_XCB */'
+
+		print '    }'
+		print '    return%s;' % (return_name)
+		return
+
+
+	def printPixelFunction(self, f):
+		if self.pixel_stubs.has_key( f.name ):
+			# Normally gl_function::get_parameter_string could be
+			# used.  However, this call needs to have the missing
+			# dimensions (e.g., a fake height value for
+			# glTexImage1D) added in.
+
+			p_string = ""
+			for param in f.parameterIterateGlxSend():
+				if param.is_padding:
+					continue
+
+				p_string += ", " + param.name
+
+				if param.is_image():
+					[dim, junk, junk, junk, junk] = param.get_dimensions()
+
+				if f.pad_after(param):
+					p_string += ", 1"
+
+			print '    %s(%s, %u%s );' % (self.pixel_stubs[f.name] , f.opcode_name(), dim, p_string)
+			return
+
+
+		if self.common_func_print_just_start(f, None):
+			trailer = "    }"
+		else:
+			trailer = None
+
+
+		if f.can_be_large:
+			print 'if (cmdlen <= gc->maxSmallRenderCommandSize) {'
+			print '    if ( (gc->pc + cmdlen) > gc->bufEnd ) {'
+			print '        (void) __glXFlushRenderBuffer(gc, gc->pc);'
+			print '    }'
+
+		if f.glx_rop == ~0:
+			opcode = "opcode"
+		else:
+			opcode = f.opcode_real_name()
+
+		print 'emit_header(gc->pc, %s, cmdlen);' % (opcode)
+
+		self.pixel_emit_args( f, "gc->pc", 0 )
+		print 'gc->pc += cmdlen;'
+		print 'if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }'
+
+		if f.can_be_large:
+			print '}'
+			print 'else {'
+
+			self.large_emit_begin(f, opcode)
+			self.pixel_emit_args(f, "pc", 1)
+
+			print '}'
+
+		if trailer: print trailer
+		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.parameters) == 1:
+			p = f.parameters[0]
+			if p.is_pointer():
+				cmdlen = f.command_fixed_length()
+				if cmdlen in self.generic_sizes:
+					print '    generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name)
+					return
+
+		if self.common_func_print_just_start(f, None):
+			trailer = "    }"
+		else:
+			trailer = None
+
+		if self.debug:
+			print 'printf( "Enter %%s...\\n", "gl%s" );' % (f.name)
+
+		if f.can_be_large:
+			print 'if (cmdlen <= gc->maxSmallRenderCommandSize) {'
+			print '    if ( (gc->pc + cmdlen) > gc->bufEnd ) {'
+			print '        (void) __glXFlushRenderBuffer(gc, gc->pc);'
+			print '    }'
+
+		print 'emit_header(gc->pc, %s, cmdlen);' % (f.opcode_real_name())
+
+		self.common_emit_args(f, "gc->pc", 4, 0)
+		print 'gc->pc += cmdlen;'
+		print 'if (__builtin_expect(gc->pc > gc->limit, 0)) { (void) __glXFlushRenderBuffer(gc, gc->pc); }'
+
+		if f.can_be_large:
+			print '}'
+			print 'else {'
+
+			self.large_emit_begin(f)
+			self.common_emit_args(f, "pc", 8, 1)
+
+			p = f.variable_length_parameter()
+			print '    __glXSendLargeCommand(gc, pc, %u, %s, %s);' % (p.offset + 8, p.name, p.size_string())
+			print '}'
+
+		if self.debug:
+			print '__indirect_glFinish();'
+			print 'printf( "Exit %%s.\\n", "gl%s" );' % (f.name)
+
+		if trailer: print trailer
+		return
+
+
+class PrintGlxProtoInit_c(gl_XML.gl_print_base):
+	def __init__(self):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.name = "glX_proto_send.py (from Mesa)"
+		self.license = license.bsd_license_template % ( \
+"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
+		return
+
+
+	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;
+}
+"""
+		return
+
+
+	def printBody(self, api):
+		for [name, number] in api.categoryIterate():
+			if number != None:
+				preamble = '\n    /* %3u. %s */\n\n' % (int(number), name)
+			else:
+				preamble = '\n    /* %s */\n\n' % (name)
+
+			for func in api.functionIterateByCategory(name):
+				if func.client_supported_for_indirect():
+					print '%s    glAPI->%s = __indirect_gl%s;' % (preamble, func.name, func.name)
+					preamble = ''
+
+		return
+
+
+class PrintGlxProtoInit_h(gl_XML.gl_print_base):
+	def __init__(self):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.name = "glX_proto_send.py (from Mesa)"
+		self.license = license.bsd_license_template % ( \
+"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
+		self.header_tag = "_INDIRECT_H_"
+
+		self.last_category = ""
+		return
+
+
+	def printRealHeader(self):
+		print """/**
+ * \\file
+ * Prototypes for indirect rendering functions.
+ *
+ * \\author Kevin E. Martin <kevin@precisioninsight.com>
+ * \\author Ian Romanick <idr@us.ibm.com>
+ */
+"""
+		self.printVisibility( "HIDDEN", "hidden" )
+		self.printFastcall()
+		self.printNoinline()
+
+		print """
+#include "glxclient.h"
+
+extern HIDDEN NOINLINE CARD32 __glXReadReply( Display *dpy, size_t size,
+    void * dest, GLboolean reply_is_always_array );
+
+extern HIDDEN NOINLINE void __glXReadPixelReply( Display *dpy,
+    __GLXcontext * gc, unsigned max_dim, GLint width, GLint height,
+    GLint depth, GLenum format, GLenum type, void * dest,
+    GLboolean dimensions_in_reply );
+
+extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupSingleRequest(
+    __GLXcontext * gc, GLint sop, GLint cmdlen );
+
+extern HIDDEN NOINLINE FASTCALL GLubyte * __glXSetupVendorRequest(
+    __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen );
+"""
+
+
+	def printBody(self, api):
+		for func in api.functionIterateGlx():
+			params = func.get_parameter_string()
+
+			print 'extern HIDDEN %s __indirect_gl%s(%s);' % (func.return_type, func.name, params)
+
+			for n in func.entry_points:
+				if func.has_different_protocol(n):
+					asdf = func.static_glx_name(n)
+					if asdf not in func.static_entry_points:
+						print 'extern HIDDEN %s gl%s(%s);' % (func.return_type, asdf, params)
+					else:
+						print 'GLAPI %s GLAPIENTRY gl%s(%s);' % (func.return_type, asdf, params)
+						
+					break
+
+
+
+def show_usage():
+	print "Usage: %s [-f input_file_name] [-m output_mode] [-d]" % sys.argv[0]
+	print "    -m output_mode   Output mode can be one of 'proto', 'init_c' or 'init_h'."
+	print "    -d               Enable extra debug information in the generated code."
+	sys.exit(1)
+
+
+if __name__ == '__main__':
+	file_name = "gl_API.xml"
+
+	try:
+		(args, trail) = getopt.getopt(sys.argv[1:], "f:m:d")
+	except Exception,e:
+		show_usage()
+
+	debug = 0
+	mode = "proto"
+	for (arg,val) in args:
+		if arg == "-f":
+			file_name = val
+		elif arg == "-m":
+			mode = val
+		elif arg == "-d":
+			debug = 1
+
+	if mode == "proto":
+		printer = PrintGlxProtoStubs()
+	elif mode == "init_c":
+		printer = PrintGlxProtoInit_c()
+	elif mode == "init_h":
+		printer = PrintGlxProtoInit_h()
+	else:
+		show_usage()
+
+
+	printer.debug = debug
+	api = gl_XML.parse_GL_API( file_name, glX_XML.glx_item_factory() )
+
+	printer.Print( api )