| 1 | # Copyright (c) 2001, Stanford University
|
|---|
| 2 | # All rights reserved.
|
|---|
| 3 | #
|
|---|
| 4 | # See the file LICENSE.txt for information on redistributing this software.
|
|---|
| 5 |
|
|---|
| 6 | # This script generates the packer.c file from the gl_header.parsed file.
|
|---|
| 7 |
|
|---|
| 8 | import sys, string, re
|
|---|
| 9 |
|
|---|
| 10 | import apiutil
|
|---|
| 11 |
|
|---|
| 12 |
|
|---|
| 13 |
|
|---|
| 14 | def WriteData( offset, arg_type, arg_name, is_swapped ):
|
|---|
| 15 | """Return a string to write a variable to the packing buffer."""
|
|---|
| 16 | retval = 9
|
|---|
| 17 | if apiutil.IsPointer(arg_type):
|
|---|
| 18 | retval = "\tWRITE_NETWORK_POINTER( %d, (void *) %s );" % (offset, arg_name )
|
|---|
| 19 | else:
|
|---|
| 20 | if is_swapped:
|
|---|
| 21 | if arg_type == "GLfloat" or arg_type == "GLclampf":
|
|---|
| 22 | retval = "\tWRITE_DATA( %d, GLuint, SWAPFLOAT(%s) );" % (offset, arg_name)
|
|---|
| 23 | elif arg_type == "GLdouble" or arg_type == "GLclampd":
|
|---|
| 24 | retval = "\tWRITE_SWAPPED_DOUBLE( %d, %s );" % (offset, arg_name)
|
|---|
| 25 | elif apiutil.sizeof(arg_type) == 1:
|
|---|
| 26 | retval = "\tWRITE_DATA( %d, %s, %s );" % (offset, arg_type, arg_name)
|
|---|
| 27 | elif apiutil.sizeof(arg_type) == 2:
|
|---|
| 28 | retval = "\tWRITE_DATA( %d, %s, SWAP16(%s) );" % (offset, arg_type, arg_name)
|
|---|
| 29 | elif apiutil.sizeof(arg_type) == 4:
|
|---|
| 30 | retval = "\tWRITE_DATA( %d, %s, SWAP32(%s) );" % (offset, arg_type, arg_name)
|
|---|
| 31 | else:
|
|---|
| 32 | if arg_type == "GLdouble" or arg_type == "GLclampd":
|
|---|
| 33 | retval = "\tWRITE_DOUBLE( %d, %s );" % (offset, arg_name)
|
|---|
| 34 | else:
|
|---|
| 35 | retval = "\tWRITE_DATA( %d, %s, %s );" % (offset, arg_type, arg_name)
|
|---|
| 36 | if retval == 9:
|
|---|
| 37 | print >>sys.stderr, "no retval for %s %s" % (arg_name, arg_type)
|
|---|
| 38 | assert 0
|
|---|
| 39 | return retval
|
|---|
| 40 |
|
|---|
| 41 |
|
|---|
| 42 | def UpdateCurrentPointer( func_name ):
|
|---|
| 43 | m = re.search( r"^(Color|Normal)([1234])(ub|b|us|s|ui|i|f|d)$", func_name )
|
|---|
| 44 | if m :
|
|---|
| 45 | k = m.group(1)
|
|---|
| 46 | name = '%s%s' % (k[:1].lower(),k[1:])
|
|---|
| 47 | type = m.group(3) + m.group(2)
|
|---|
| 48 | print "\tpc->current.c.%s.%s = data_ptr;" % (name,type)
|
|---|
| 49 | return
|
|---|
| 50 |
|
|---|
| 51 | m = re.search( r"^(SecondaryColor)(3)(ub|b|us|s|ui|i|f|d)EXT$", func_name )
|
|---|
| 52 | if m :
|
|---|
| 53 | k = m.group(1)
|
|---|
| 54 | name = 'secondaryColor'
|
|---|
| 55 | type = m.group(3) + m.group(2)
|
|---|
| 56 | print "\tpc->current.c.%s.%s = data_ptr;" % (name,type)
|
|---|
| 57 | return
|
|---|
| 58 |
|
|---|
| 59 | m = re.search( r"^(TexCoord)([1234])(ub|b|us|s|ui|i|f|d)$", func_name )
|
|---|
| 60 | if m :
|
|---|
| 61 | k = m.group(1)
|
|---|
| 62 | name = 'texCoord'
|
|---|
| 63 | type = m.group(3) + m.group(2)
|
|---|
| 64 | print "\tpc->current.c.%s.%s[0] = data_ptr;" % (name,type)
|
|---|
| 65 | return
|
|---|
| 66 |
|
|---|
| 67 | m = re.search( r"^(MultiTexCoord)([1234])(ub|b|us|s|ui|i|f|d)ARB$", func_name )
|
|---|
| 68 | if m :
|
|---|
| 69 | k = m.group(1)
|
|---|
| 70 | name = 'texCoord'
|
|---|
| 71 | type = m.group(3) + m.group(2)
|
|---|
| 72 | print "\tpc->current.c.%s.%s[texture-GL_TEXTURE0_ARB] = data_ptr + 4;" % (name,type)
|
|---|
| 73 | return
|
|---|
| 74 |
|
|---|
| 75 | m = re.match( r"^(Index)(ub|b|us|s|ui|i|f|d)$", func_name )
|
|---|
| 76 | if m :
|
|---|
| 77 | k = m.group(1)
|
|---|
| 78 | name = 'index'
|
|---|
| 79 | type = m.group(2) + "1"
|
|---|
| 80 | print "\tpc->current.c.%s.%s = data_ptr;" % (name,type)
|
|---|
| 81 | return
|
|---|
| 82 |
|
|---|
| 83 | m = re.match( r"^(EdgeFlag)$", func_name )
|
|---|
| 84 | if m :
|
|---|
| 85 | k = m.group(1)
|
|---|
| 86 | name = 'edgeFlag'
|
|---|
| 87 | type = "l1"
|
|---|
| 88 | print "\tpc->current.c.%s.%s = data_ptr;" % (name,type)
|
|---|
| 89 | return
|
|---|
| 90 |
|
|---|
| 91 | m = re.match( r"^(FogCoord)(f|d)EXT$", func_name )
|
|---|
| 92 | if m :
|
|---|
| 93 | k = m.group(1)
|
|---|
| 94 | name = 'fogCoord'
|
|---|
| 95 | type = m.group(2) + "1"
|
|---|
| 96 | print "\tpc->current.c.%s.%s = data_ptr;" % (name,type)
|
|---|
| 97 | return
|
|---|
| 98 |
|
|---|
| 99 |
|
|---|
| 100 | m = re.search( r"^(VertexAttrib)([1234])N?(ub|b|s|f|d)(NV|ARB)$", func_name )
|
|---|
| 101 | if m :
|
|---|
| 102 | k = m.group(1)
|
|---|
| 103 | name = 'vertexAttrib'
|
|---|
| 104 | type = m.group(3) + m.group(2)
|
|---|
| 105 | # Add 12 to skip the packet length, opcode and index fields
|
|---|
| 106 | print "\tpc->current.c.%s.%s[index] = data_ptr + 12;" % (name,type)
|
|---|
| 107 | if m.group(4) == "ARB" or m.group(4) == "NV":
|
|---|
| 108 | print "\tpc->current.attribsUsedMask |= (1 << index);"
|
|---|
| 109 | return
|
|---|
| 110 |
|
|---|
| 111 |
|
|---|
| 112 |
|
|---|
| 113 | def PrintFunc( func_name, params, is_swapped, can_have_pointers ):
|
|---|
| 114 | """Emit a packer function."""
|
|---|
| 115 | if is_swapped:
|
|---|
| 116 | print 'void PACK_APIENTRY crPack%sSWAP( %s )' % (func_name, apiutil.MakeDeclarationString(params))
|
|---|
| 117 | else:
|
|---|
| 118 | print 'void PACK_APIENTRY crPack%s( %s )' % (func_name, apiutil.MakeDeclarationString(params))
|
|---|
| 119 | print '{'
|
|---|
| 120 | print '\tGET_PACKER_CONTEXT(pc);'
|
|---|
| 121 |
|
|---|
| 122 | # Save original function name
|
|---|
| 123 | orig_func_name = func_name
|
|---|
| 124 |
|
|---|
| 125 | # Convert to a non-vector version of the function if possible
|
|---|
| 126 | func_name = apiutil.NonVectorFunction( func_name )
|
|---|
| 127 | if not func_name:
|
|---|
| 128 | func_name = orig_func_name
|
|---|
| 129 |
|
|---|
| 130 | # Check if there are any pointer parameters.
|
|---|
| 131 | # That's usually a problem so we'll emit an error function.
|
|---|
| 132 | nonVecParams = apiutil.Parameters(func_name)
|
|---|
| 133 | bail_out = 0
|
|---|
| 134 | for (name, type, vecSize) in nonVecParams:
|
|---|
| 135 | if apiutil.IsPointer(type) and vecSize == 0 and not can_have_pointers:
|
|---|
| 136 | bail_out = 1
|
|---|
| 137 | if bail_out:
|
|---|
| 138 | for (name, type, vecSize) in nonVecParams:
|
|---|
| 139 | print '\t(void)%s;' % (name)
|
|---|
| 140 | print '\tcrError ( "%s needs to be special cased %d %d!");' % (func_name, vecSize, can_have_pointers)
|
|---|
| 141 | print '\t(void) pc;'
|
|---|
| 142 | print '}'
|
|---|
| 143 | # XXX we should really abort here
|
|---|
| 144 | return
|
|---|
| 145 |
|
|---|
| 146 | if "extpack" in apiutil.ChromiumProps(func_name):
|
|---|
| 147 | is_extended = 1
|
|---|
| 148 | else:
|
|---|
| 149 | is_extended = 0
|
|---|
| 150 |
|
|---|
| 151 |
|
|---|
| 152 | print "\tunsigned char *data_ptr;"
|
|---|
| 153 | print '\t(void) pc;'
|
|---|
| 154 | #if func_name == "Enable" or func_name == "Disable":
|
|---|
| 155 | # print "\tCRASSERT(!pc->buffer.geometry_only); /* sanity check */"
|
|---|
| 156 |
|
|---|
| 157 | packet_length = apiutil.PacketLength(nonVecParams)
|
|---|
| 158 |
|
|---|
| 159 | if packet_length == 0 and not is_extended:
|
|---|
| 160 | print "\tGET_BUFFERED_POINTER_NO_ARGS( pc );"
|
|---|
| 161 | elif func_name[:9] == "Translate" or func_name[:5] == "Color":
|
|---|
| 162 | # XXX WTF is the purpose of this?
|
|---|
| 163 | if is_extended:
|
|---|
| 164 | packet_length += 8
|
|---|
| 165 | print "\tGET_BUFFERED_POINTER_NO_BEGINEND_FLUSH( pc, %d );" % packet_length
|
|---|
| 166 | else:
|
|---|
| 167 | if is_extended:
|
|---|
| 168 | packet_length += 8
|
|---|
| 169 | print "\tGET_BUFFERED_POINTER( pc, %d );" % packet_length
|
|---|
| 170 | UpdateCurrentPointer( func_name )
|
|---|
| 171 |
|
|---|
| 172 | if is_extended:
|
|---|
| 173 | counter = 8
|
|---|
| 174 | print WriteData( 0, 'GLint', packet_length, is_swapped )
|
|---|
| 175 | print WriteData( 4, 'GLenum', apiutil.ExtendedOpcodeName( func_name ), is_swapped )
|
|---|
| 176 | else:
|
|---|
| 177 | counter = 0
|
|---|
| 178 |
|
|---|
| 179 | # Now emit the WRITE_() macros for all parameters
|
|---|
| 180 | for index in range(0,len(params)):
|
|---|
| 181 | (name, type, vecSize) = params[index]
|
|---|
| 182 | # if we're converting a vector-valued function to a non-vector func:
|
|---|
| 183 | if vecSize > 0 and func_name != orig_func_name:
|
|---|
| 184 | ptrType = apiutil.PointerType(type)
|
|---|
| 185 | for i in range(0, vecSize):
|
|---|
| 186 | print WriteData( counter + i * apiutil.sizeof(ptrType),
|
|---|
| 187 | ptrType, "%s[%d]" % (name, i), is_swapped )
|
|---|
| 188 | # XXX increment counter here?
|
|---|
| 189 | else:
|
|---|
| 190 | print WriteData( counter, type, name, is_swapped )
|
|---|
| 191 | if apiutil.IsPointer(type):
|
|---|
| 192 | counter += apiutil.PointerSize()
|
|---|
| 193 | else:
|
|---|
| 194 | counter += apiutil.sizeof(type)
|
|---|
| 195 |
|
|---|
| 196 | # finish up
|
|---|
| 197 | if is_extended:
|
|---|
| 198 | print "\tWRITE_OPCODE( pc, CR_EXTEND_OPCODE );"
|
|---|
| 199 | else:
|
|---|
| 200 | print "\tWRITE_OPCODE( pc, %s );" % apiutil.OpcodeName( func_name )
|
|---|
| 201 | print '}\n'
|
|---|
| 202 |
|
|---|
| 203 |
|
|---|
| 204 |
|
|---|
| 205 |
|
|---|
| 206 | apiutil.CopyrightC()
|
|---|
| 207 |
|
|---|
| 208 | print """
|
|---|
| 209 | /* DO NOT EDIT - THIS FILE GENERATED BY THE packer.py SCRIPT */
|
|---|
| 210 |
|
|---|
| 211 | /* For each of the OpenGL functions we have a packer function which
|
|---|
| 212 | * packs the function's opcode and arguments into a buffer.
|
|---|
| 213 | */
|
|---|
| 214 |
|
|---|
| 215 | #include "packer.h"
|
|---|
| 216 | #include "cr_opcodes.h"
|
|---|
| 217 |
|
|---|
| 218 | """
|
|---|
| 219 |
|
|---|
| 220 |
|
|---|
| 221 | keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt")
|
|---|
| 222 |
|
|---|
| 223 | for func_name in keys:
|
|---|
| 224 | if apiutil.FindSpecial( "packer", func_name ):
|
|---|
| 225 | continue
|
|---|
| 226 |
|
|---|
| 227 | if not apiutil.HasPackOpcode(func_name):
|
|---|
| 228 | continue
|
|---|
| 229 |
|
|---|
| 230 | pointers_ok = 0
|
|---|
| 231 |
|
|---|
| 232 | return_type = apiutil.ReturnType(func_name)
|
|---|
| 233 | params = apiutil.Parameters(func_name)
|
|---|
| 234 |
|
|---|
| 235 | if return_type != 'void':
|
|---|
| 236 | # Yet another gross hack for glGetString
|
|---|
| 237 | if string.find( return_type, '*' ) == -1:
|
|---|
| 238 | return_type = return_type + " *"
|
|---|
| 239 | params.append(("return_value", return_type, 0))
|
|---|
| 240 |
|
|---|
| 241 | if "get" in apiutil.Properties(func_name):
|
|---|
| 242 | pointers_ok = 1
|
|---|
| 243 | params.append(("writeback", "int *", 0))
|
|---|
| 244 |
|
|---|
| 245 | if func_name == 'Writeback':
|
|---|
| 246 | pointers_ok = 1
|
|---|
| 247 |
|
|---|
| 248 | PrintFunc( func_name, params, 0, pointers_ok )
|
|---|
| 249 | PrintFunc( func_name, params, 1, pointers_ok )
|
|---|
