| 1 | # Copyright (c) 2001, Stanford University
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| 2 | # All rights reserved.
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| 3 | #
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| 4 | # See the file LICENSE.txt for information on redistributing this software.
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| 5 |
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| 6 | import sys
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| 7 |
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| 8 | import apiutil
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| 9 |
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| 10 |
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| 11 | apiutil.CopyrightC()
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| 12 |
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| 13 | print """/* DO NOT EDIT! THIS CODE IS AUTOGENERATED BY unpack.py */
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| 14 |
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| 15 | #include "unpacker.h"
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| 16 | #include "cr_opcodes.h"
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| 17 | #include "cr_error.h"
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| 18 | #include "cr_mem.h"
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| 19 | #include "cr_spu.h"
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| 20 | #include "unpack_extend.h"
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| 21 | #include <stdio.h>
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| 22 | #include <memory.h>
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| 23 |
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| 24 | #include <iprt/cdefs.h>
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| 25 |
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| 26 | DECLEXPORT(const unsigned char *) cr_unpackData = NULL;
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| 27 | SPUDispatchTable cr_unpackDispatch;
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| 28 |
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| 29 | static void crUnpackExtend(void);
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| 30 | static void crUnpackExtendDbg(void);
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| 31 |
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| 32 | /*#define CR_UNPACK_DEBUG_OPCODES*/
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| 33 | /*#define CR_UNPACK_DEBUG_LAST_OPCODES*/
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| 34 | """
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| 35 |
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| 36 | nodebug_opcodes = [
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| 37 | "CR_MULTITEXCOORD2FARB_OPCODE",
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| 38 | "CR_VERTEX3F_OPCODE",
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| 39 | "CR_NORMAL3F_OPCODE",
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| 40 | "CR_COLOR4UB_OPCODE",
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| 41 | "CR_LOADIDENTITY_OPCODE",
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| 42 | "CR_MATRIXMODE_OPCODE",
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| 43 | "CR_LOADMATRIXF_OPCODE",
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| 44 | "CR_DISABLE_OPCODE",
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| 45 | "CR_COLOR4F_OPCODE",
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| 46 | "CR_ENABLE_OPCODE",
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| 47 | "CR_BEGIN_OPCODE",
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| 48 | "CR_END_OPCODE",
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| 49 | "CR_SECONDARYCOLOR3FEXT_OPCODE"
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| 50 | ]
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| 51 |
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| 52 | nodebug_extopcodes = [
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| 53 | "CR_ACTIVETEXTUREARB_EXTEND_OPCODE"
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| 54 | ]
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| 55 |
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| 56 | #
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| 57 | # Useful functions
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| 58 | #
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| 59 |
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| 60 | def ReadData( offset, arg_type ):
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| 61 | """Emit a READ_DOUBLE or READ_DATA call for pulling a GL function
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| 62 | argument out of the buffer's operand area."""
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| 63 | if arg_type == "GLdouble" or arg_type == "GLclampd":
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| 64 | retval = "READ_DOUBLE( %d )" % offset
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| 65 | else:
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| 66 | retval = "READ_DATA( %d, %s )" % (offset, arg_type)
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| 67 | return retval
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| 68 |
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| 69 |
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| 70 | def FindReturnPointer( return_type, params ):
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| 71 | """For GL functions that return values (either as the return value or
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| 72 | through a pointer parameter) emit a SET_RETURN_PTR call."""
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| 73 | arg_len = apiutil.PacketLength( params )
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| 74 | if (return_type != 'void'):
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| 75 | print '\tSET_RETURN_PTR( %d );' % (arg_len + 8) # extended opcode plus packet length
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| 76 | else:
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| 77 | paramList = [ ('foo', 'void *', 0) ]
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| 78 | print '\tSET_RETURN_PTR( %d );' % (arg_len + 8 - apiutil.PacketLength(paramList))
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| 79 |
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| 80 |
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| 81 | def FindWritebackPointer( return_type, params ):
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| 82 | """Emit a SET_WRITEBACK_PTR call."""
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| 83 | arg_len = apiutil.PacketLength( params )
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| 84 | if return_type != 'void':
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| 85 | paramList = [ ('foo', 'void *', 0) ]
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| 86 | arg_len += apiutil.PacketLength( paramList )
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| 87 |
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| 88 | print '\tSET_WRITEBACK_PTR( %d );' % (arg_len + 8) # extended opcode plus packet length
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| 89 |
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| 90 |
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| 91 | def MakeNormalCall( return_type, func_name, params, counter_init = 0 ):
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| 92 | counter = counter_init
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| 93 | copy_of_params = params[:]
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| 94 |
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| 95 | for i in range( 0, len(params) ):
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| 96 | (name, type, vecSize) = params[i]
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| 97 | if apiutil.IsPointer(copy_of_params[i][1]):
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| 98 | params[i] = ('NULL', type, vecSize)
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| 99 | copy_of_params[i] = (copy_of_params[i][0], 'void', 0)
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| 100 | if not "get" in apiutil.Properties(func_name):
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| 101 | print '\tcrError( "%s needs to be special cased!" );' % func_name
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| 102 | else:
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| 103 | print "\t%s %s = %s;" % ( copy_of_params[i][1], name, ReadData( counter, copy_of_params[i][1] ) )
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| 104 | counter += apiutil.sizeof(copy_of_params[i][1])
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| 105 |
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| 106 | if ("get" in apiutil.Properties(func_name)):
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| 107 | FindReturnPointer( return_type, params )
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| 108 | FindWritebackPointer( return_type, params )
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| 109 |
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| 110 | if return_type != "void":
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| 111 | print "\t(void)",
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| 112 | else:
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| 113 | print "\t",
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| 114 | print "cr_unpackDispatch.%s( %s );" % (func_name, apiutil.MakeCallString(params))
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| 115 |
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| 116 |
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| 117 | def MakeVectorCall( return_type, func_name, arg_type ):
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| 118 | """Convert a call like glVertex3f to glVertex3fv."""
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| 119 | vec_func = apiutil.VectorFunction(func_name)
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| 120 | params = apiutil.Parameters(vec_func)
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| 121 | assert len(params) == 1
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| 122 | (arg_name, vecType, vecSize) = params[0]
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| 123 |
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| 124 | if arg_type == "GLdouble" or arg_type == "GLclampd":
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| 125 | print "#ifdef CR_UNALIGNED_ACCESS_OKAY"
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| 126 | print "\tcr_unpackDispatch.%s((%s) cr_unpackData);" % (vec_func, vecType)
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| 127 | print "#else"
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| 128 | for index in range(0, vecSize):
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| 129 | print "\tGLdouble v" + `index` + " = READ_DOUBLE(", `index * 8`, ");"
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| 130 | if return_type != "void":
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| 131 | print "\t(void) cr_unpackDispatch.%s(" % func_name,
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| 132 | else:
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| 133 | print "\tcr_unpackDispatch.%s(" % func_name,
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| 134 | for index in range(0, vecSize):
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| 135 | print "v" + `index`,
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| 136 | if index != vecSize - 1:
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| 137 | print ",",
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| 138 | print ");"
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| 139 | print "#endif"
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| 140 | else:
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| 141 | print "\tcr_unpackDispatch.%s((%s) cr_unpackData);" % (vec_func, vecType)
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| 142 |
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| 143 |
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| 144 |
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| 145 | keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt")
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| 146 |
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| 147 |
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| 148 | #
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| 149 | # Generate unpack functions for all the simple functions.
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| 150 | #
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| 151 | for func_name in keys:
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| 152 | if (not "pack" in apiutil.ChromiumProps(func_name) or
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| 153 | apiutil.FindSpecial( "unpacker", func_name )):
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| 154 | continue
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| 155 |
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| 156 | params = apiutil.Parameters(func_name)
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| 157 | return_type = apiutil.ReturnType(func_name)
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| 158 |
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| 159 | print "static void crUnpack%s(void)" % func_name
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| 160 | print "{"
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| 161 |
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| 162 | vector_func = apiutil.VectorFunction(func_name)
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| 163 | if (vector_func and len(apiutil.Parameters(vector_func)) == 1):
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| 164 | MakeVectorCall( return_type, func_name, params[0][1] )
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| 165 | else:
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| 166 | MakeNormalCall( return_type, func_name, params )
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| 167 | packet_length = apiutil.PacketLength( params )
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| 168 | if packet_length == 0:
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| 169 | print "\tINCR_DATA_PTR_NO_ARGS( );"
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| 170 | else:
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| 171 | print "\tINCR_DATA_PTR( %d );" % packet_length
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| 172 | print "}\n"
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| 173 |
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| 174 |
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| 175 | #
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| 176 | # Emit some code
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| 177 | #
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| 178 | print """
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| 179 | typedef struct __dispatchNode {
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| 180 | const unsigned char *unpackData;
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| 181 | struct __dispatchNode *next;
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| 182 | } DispatchNode;
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| 183 |
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| 184 | static DispatchNode *unpackStack = NULL;
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| 185 |
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| 186 | static SPUDispatchTable *cr_lastDispatch = NULL;
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| 187 |
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| 188 | void crUnpackPush(void)
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| 189 | {
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| 190 | DispatchNode *node = (DispatchNode*)crAlloc( sizeof( *node ) );
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| 191 | node->next = unpackStack;
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| 192 | unpackStack = node;
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| 193 | node->unpackData = cr_unpackData;
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| 194 | }
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| 195 |
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| 196 | void crUnpackPop(void)
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| 197 | {
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| 198 | DispatchNode *node = unpackStack;
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| 199 |
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| 200 | if (!node)
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| 201 | {
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| 202 | crError( "crUnpackPop called with an empty stack!" );
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| 203 | }
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| 204 | unpackStack = node->next;
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| 205 | cr_unpackData = node->unpackData;
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| 206 | crFree( node );
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| 207 | }
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| 208 |
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| 209 | void crUnpack( const void *data, const void *opcodes,
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| 210 | unsigned int num_opcodes, SPUDispatchTable *table )
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| 211 | {
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| 212 | unsigned int i;
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| 213 | const unsigned char *unpack_opcodes;
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| 214 | if (table != cr_lastDispatch)
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| 215 | {
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| 216 | crSPUCopyDispatchTable( &cr_unpackDispatch, table );
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| 217 | cr_lastDispatch = table;
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| 218 | }
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| 219 |
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| 220 | unpack_opcodes = (const unsigned char *)opcodes;
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| 221 | cr_unpackData = (const unsigned char *)data;
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| 222 |
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| 223 | #if defined(CR_UNPACK_DEBUG_OPCODES) || defined(CR_UNPACK_DEBUG_LAST_OPCODES)
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| 224 | crDebug("crUnpack: %d opcodes", num_opcodes);
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| 225 | #endif
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| 226 |
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| 227 | for (i = 0 ; i < num_opcodes ; i++)
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| 228 | {
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| 229 | /*crDebug(\"Unpacking opcode \%d\", *unpack_opcodes);*/
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| 230 | switch( *unpack_opcodes )
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| 231 | {"""
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| 232 |
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| 233 | #
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| 234 | # Emit switch cases for all unextended opcodes
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| 235 | #
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| 236 | for func_name in keys:
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| 237 | if "pack" in apiutil.ChromiumProps(func_name):
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| 238 | print '\t\t\tcase %s:' % apiutil.OpcodeName( func_name )
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| 239 | if not apiutil.OpcodeName(func_name) in nodebug_opcodes:
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| 240 | print """
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| 241 | #ifdef CR_UNPACK_DEBUG_LAST_OPCODES
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| 242 | if (i==(num_opcodes-1))
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| 243 | #endif
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| 244 | #if defined(CR_UNPACK_DEBUG_OPCODES) || defined(CR_UNPACK_DEBUG_LAST_OPCODES)
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| 245 | crDebug("Unpack: %s");
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| 246 | #endif """ % apiutil.OpcodeName(func_name)
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| 247 | print '\t\t\t\tcrUnpack%s(); \n\t\t\t\tbreak;' % func_name
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| 248 |
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| 249 | print """
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| 250 | case CR_EXTEND_OPCODE:
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| 251 | #ifdef CR_UNPACK_DEBUG_OPCODES
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| 252 | crUnpackExtendDbg();
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| 253 | #else
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| 254 | # ifdef CR_UNPACK_DEBUG_LAST_OPCODES
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| 255 | if (i==(num_opcodes-1)) crUnpackExtendDbg();
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| 256 | else
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| 257 | # endif
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| 258 | crUnpackExtend();
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| 259 | #endif
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| 260 | break;
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| 261 | default:
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| 262 | crError( "Unknown opcode: %d", *unpack_opcodes );
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| 263 | break;
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| 264 | }
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| 265 | unpack_opcodes--;
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| 266 | }
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| 267 | }"""
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| 268 |
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| 269 |
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| 270 | #
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| 271 | # Emit unpack functions for extended opcodes, non-special functions only.
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| 272 | #
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| 273 | for func_name in keys:
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| 274 | if ("extpack" in apiutil.ChromiumProps(func_name)
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| 275 | and not apiutil.FindSpecial("unpacker", func_name)):
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| 276 | return_type = apiutil.ReturnType(func_name)
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| 277 | params = apiutil.Parameters(func_name)
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| 278 | print 'static void crUnpackExtend%s(void)' % func_name
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| 279 | print '{'
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| 280 | MakeNormalCall( return_type, func_name, params, 8 )
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| 281 | print '}\n'
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| 282 |
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| 283 | print 'static void crUnpackExtend(void)'
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| 284 | print '{'
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| 285 | print '\tGLenum extend_opcode = %s;' % ReadData( 4, 'GLenum' );
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| 286 | print ''
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| 287 | print '\t/*crDebug(\"Unpacking extended opcode \%d", extend_opcode);*/'
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| 288 | print '\tswitch( extend_opcode )'
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| 289 | print '\t{'
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| 290 |
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| 291 |
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| 292 | #
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| 293 | # Emit switch statement for extended opcodes
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| 294 | #
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| 295 | for func_name in keys:
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| 296 | if "extpack" in apiutil.ChromiumProps(func_name):
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| 297 | print '\t\tcase %s:' % apiutil.ExtendedOpcodeName( func_name )
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| 298 | # print '\t\t\t\tcrDebug("Unpack: %s");' % apiutil.ExtendedOpcodeName( func_name )
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| 299 | print '\t\t\tcrUnpackExtend%s( );' % func_name
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| 300 | print '\t\t\tbreak;'
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| 301 |
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| 302 | print """ default:
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| 303 | crError( "Unknown extended opcode: %d", (int) extend_opcode );
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| 304 | break;
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| 305 | }
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| 306 | INCR_VAR_PTR();
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| 307 | }"""
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| 308 |
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| 309 | print 'static void crUnpackExtendDbg(void)'
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| 310 | print '{'
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| 311 | print '\tGLenum extend_opcode = %s;' % ReadData( 4, 'GLenum' );
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| 312 | print ''
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| 313 | print '\t/*crDebug(\"Unpacking extended opcode \%d", extend_opcode);*/'
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| 314 | print '\tswitch( extend_opcode )'
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| 315 | print '\t{'
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| 316 |
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| 317 |
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| 318 | #
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| 319 | # Emit switch statement for extended opcodes
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| 320 | #
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| 321 | for func_name in keys:
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| 322 | if "extpack" in apiutil.ChromiumProps(func_name):
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| 323 | print '\t\tcase %s:' % apiutil.ExtendedOpcodeName( func_name )
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| 324 | if not apiutil.ExtendedOpcodeName(func_name) in nodebug_extopcodes:
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| 325 | print '\t\t\tcrDebug("Unpack: %s");' % apiutil.ExtendedOpcodeName( func_name )
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| 326 | print '\t\t\tcrUnpackExtend%s( );' % func_name
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| 327 | print '\t\t\tbreak;'
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| 328 |
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| 329 | print """ default:
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| 330 | crError( "Unknown extended opcode: %d", (int) extend_opcode );
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| 331 | break;
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| 332 | }
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| 333 | INCR_VAR_PTR();
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| 334 | }"""
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