mirror of
https://github.com/astromaddie/HaloCE-VR.git
synced 2026-10-17 17:00:13 +02:00
Jonas Volman
709bfc3a3c
Import only independently reviewed production changes. Preserve canonical physics and virtual-keyboard repairs; keep B3 and all unresolved holds out. Record exactly four approved canary debits (6987 meaningful bytes), six Halo admissions and two revocations. Keep vendor ioinit/storage work separate. Full build, 8252-row sweep, 1318 tests, park/admission/fake audits and 621-object binding pass within approved debit bounds. Do not publish donor research dumps or private assets. README and unrelated user research remain untouched. See frontier_publication_reconciliation_20260927.md for complete evidence limits and accounting.
305 lines
8.0 KiB
C
305 lines
8.0 KiB
C
/*
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DATA_PACKET_GROUPS.C
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symbols in this file:
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0010A150 00d0:
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_data_packet_group_initialize (0000)
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0010A220 0040:
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_data_packet_groups_get_error (0000)
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0010A260 0170:
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_data_packet_group_decode_packet (0000)
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0010A3D0 00f0:
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_data_packet_group_append_packet_header (0000)
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0010A4C0 0130:
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_data_packet_group_encode_packet (0000)
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0027D608 000e:
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??_C@_0O@IOJDJFNI@packet_header?$AA@ (0000)
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0027D618 0067:
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??_C@_0GH@CHKGHAIM@packet?9?$DOdefinition?9?$DOsize?5?$CL?5sizeo@ (0000)
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0027D680 0048:
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??_C@_0EI@IKJFLLBL@packet?9?$DOdefinition?9?$DOsize?$DM?$DNgroup_@ (0000)
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0027D6C8 0055:
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??_C@_0FF@OGBKODEN@packet?9?$DOpacket_class?$DO?$DN0?5?$CG?$CG?5packe@ (0000)
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0027D720 002b:
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??_C@_0CL@ENPIFLLL@c?3?2halo?2SOURCE?2memory?2data_packe@ (0000)
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0027D74C 001a:
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??_C@_0BK@MIAMKHEE@got?5packet?5with?5no?5header?$AA@ (0000)
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0027D768 0019:
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??_C@_0BJ@BGAOCGIB@got?5packet?5with?5bad?5type?$AA@ (0000)
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0027D784 0021:
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??_C@_0CB@BPPNEFM@got?5packet?5with?5mismatched?5class@ (0000)
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0027D7A8 0021:
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??_C@_0CB@OKKGPBBC@got?5packet?5which?5wouldn?8t?5decode@ (0000)
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0027D7D0 0057:
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??_C@_0FH@FIMIEPDH@expected_packet_class?$DO?$DN0?5?$CG?$CG?5expe@ (0000)
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0027D828 001e:
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??_C@_0BO@KIMBAFNK@packet_type?5?$CG?$CG?5packet_version?$AA@ (0000)
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0027D848 0026:
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??_C@_0CG@PNFBKFHL@encoded_packet?5?$CG?$CG?5encoded_packet@ (0000)
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0027D870 000f:
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??_C@_0P@EDJPKHAL@decoded_packet?$AA@ (0000)
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0027D880 0029:
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??_C@_0CJ@LABNGHPB@couldn?8t?5append?5header?5to?5encode@ (0000)
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0027D8B0 0042:
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??_C@_0EC@JCNCOIDD@packet_type?$DO?$DN0?5?$CG?$CG?5packet_type?$DMgr@ (0000)
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0027D8F4 0018:
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??_C@_0BI@JKLMPOFI@?$CKencoded_packet_size?$DO?$DN0?$AA@ (0000)
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0027D90C 0017:
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??_C@_0BH@IFJMIBKD@couldn?8t?5encode?5packet?$AA@ (0000)
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0027D924 0013:
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??_C@_0BD@KMJAHOKI@packet?9?$DOdefinition?$AA@ (0000)
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0027D938 0011:
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??_C@_0BB@IACFGFHK@group_definition?$AA@ (0000)
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00309E38 0024:
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_data_00309e38 (0000)
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00456624 0004:
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_bss_00456624 (0000)
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*/
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/* ---------- headers */
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#include "memory/data_packet_groups.h"
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#include "memory/data_packets.h"
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#include "memory/byte_swapping.h"
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#include "cseries/cseries.h"
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/* ---------- constants */
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/* ---------- macros */
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/* ---------- structures */
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struct packet_header
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{
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char packet_type;
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};
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struct packet_header_byte_swap_data
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{
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byte_swap_code codes[4];
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struct byte_swap_definition definition;
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};
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/* ---------- prototypes */
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/* ---------- globals */
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static char const *global_data_packet_groups_error_string = NULL;
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static struct packet_header_byte_swap_data packet_header_bs =
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{
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{ _begin_bs_array, 1, _1byte, _end_bs_array },
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{ "packet_header", sizeof(struct packet_header), packet_header_bs.codes, BYTE_SWAP_DEFINITION_SIGNATURE, FALSE }
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};
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/* ---------- public code */
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void data_packet_group_initialize(
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struct data_packet_group_definition *group_definition)
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{
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short packet_index;
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for (packet_index = 0; packet_index < group_definition->packet_type_count; packet_index++)
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{
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struct data_packet_entry *packet = &group_definition->packets[packet_index];
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if (packet->definition)
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{
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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40,
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packet->packet_class>=0 && packet->packet_class<group_definition->packet_class_count);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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41,
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packet->definition->size<=group_definition->maximum_decoded_packet_size);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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42,
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packet->definition->size + sizeof(struct packet_header)<=group_definition->maximum_encoded_packet_size);
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data_packet_verify(packet->definition);
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}
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}
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return;
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}
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char const *data_packet_groups_get_error(
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void)
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{
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char const *result = global_data_packet_groups_error_string;
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global_data_packet_groups_error_string = NULL;
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match_assert("c:\\halo\\SOURCE\\memory\\data_packet_groups.c", 57, result);
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return result;
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}
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boolean data_packet_group_append_packet_header(
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struct data_packet_group_definition *group_definition,
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void *encoded_packet,
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short *encoded_packet_size,
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short packet_type)
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{
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struct packet_header *packet_header = (struct packet_header *)((byte *)encoded_packet + *encoded_packet_size);
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char const *error = NULL;
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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172,
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encoded_packet && encoded_packet_size);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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173,
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*encoded_packet_size>=0);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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174,
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packet_type>=0 && packet_type<group_definition->packet_type_count);
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if (*encoded_packet_size + sizeof(struct packet_header) < group_definition->maximum_encoded_packet_size)
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{
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packet_header->packet_type = (char)packet_type;
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byte_swap_data(&packet_header_bs.definition, packet_header, 1);
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++*encoded_packet_size;
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}
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else
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{
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error = "couldn't append header to encoded packet";
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}
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global_data_packet_groups_error_string = error;
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return error==NULL;
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}
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boolean data_packet_group_encode_packet(
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struct data_packet_group_definition *group_definition,
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void const *decoded_packet,
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void *encoded_packet,
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short *encoded_packet_size,
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short packet_type,
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long packet_version)
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{
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char const *error = NULL;
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struct data_packet_entry *packet;
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match_assert("c:\\halo\\SOURCE\\memory\\data_packet_groups.c", 132, group_definition);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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133,
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packet_type>=0 && packet_type<group_definition->packet_type_count);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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134,
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encoded_packet && encoded_packet_size);
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packet = &group_definition->packets[packet_type];
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match_assert("c:\\halo\\SOURCE\\memory\\data_packet_groups.c", 139, packet->definition);
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if (data_packet_encode(
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packet->definition,
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packet_version,
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decoded_packet,
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encoded_packet,
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encoded_packet_size,
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(short)group_definition->maximum_encoded_packet_size))
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{
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if (!data_packet_group_append_packet_header(
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group_definition,
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encoded_packet,
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encoded_packet_size,
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(short)packet_type))
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{
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error = global_data_packet_groups_error_string;
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}
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}
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else
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{
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error = "couldn't encode packet";
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}
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global_data_packet_groups_error_string = error;
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return error==NULL;
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}
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boolean data_packet_group_decode_packet(
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struct data_packet_group_definition *group_definition,
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void *decoded_packet,
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void const *encoded_packet,
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short *encoded_packet_size,
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short *packet_type,
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short *packet_version,
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short expected_packet_class)
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{
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char const *error = NULL;
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match_assert("c:\\halo\\SOURCE\\memory\\data_packet_groups.c", 73, decoded_packet);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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74,
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encoded_packet && encoded_packet_size);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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75,
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packet_type && packet_version);
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match_assert(
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"c:\\halo\\SOURCE\\memory\\data_packet_groups.c",
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77,
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expected_packet_class>=0 && expected_packet_class<group_definition->packet_class_count);
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if (*encoded_packet_size >= sizeof(struct packet_header))
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{
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struct packet_header *packet_header = (struct packet_header *)((byte const *)encoded_packet + *encoded_packet_size - sizeof(struct packet_header));
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byte_swap_data(&packet_header_bs.definition, packet_header, 1);
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if (packet_header->packet_type>=0 && packet_header->packet_type<group_definition->packet_type_count)
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{
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struct data_packet_entry *packet = &group_definition->packets[packet_header->packet_type];
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if (packet->packet_class == expected_packet_class)
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{
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--*encoded_packet_size;
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if (!packet->definition ||
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data_packet_decode(
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packet->definition,
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encoded_packet,
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*encoded_packet_size,
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decoded_packet,
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packet_version,
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FALSE))
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{
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*packet_type = packet_header->packet_type;
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}
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else
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{
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error = "got packet which wouldn't decode";
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}
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}
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else
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{
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error = "got packet with mismatched class";
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}
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}
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else
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{
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error = "got packet with bad type";
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}
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}
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else
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{
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error = "got packet with no header";
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}
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global_data_packet_groups_error_string = error;
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return error==NULL;
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}
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/* ---------- private code */
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