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patterns/fbx: Simplified the fbx hexpat (#277)

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Hikodroid
2024-07-26 19:52:01 +02:00
committed by GitHub
parent 120bc84548
commit 8a5cb1061b
1 changed files with 7 additions and 57 deletions
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64
patterns/fbx.hexpat
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@@ -85,9 +85,7 @@ struct PropertyRecord {
}
};
using NodeRecord32B;
struct NodeRecord32A {
struct NodeRecord32 {
u32 endOffset;
u32 numProperties;
u32 propertyListLen;
@@ -106,36 +104,11 @@ struct NodeRecord32A {
auto posAfterPropertyRecords = posBeforePropertyRecords + propertyListLen;
PropertyRecord propertyRecords[numProperties];
std::assert($ == posAfterPropertyRecords, std::format("Invalid size of propertyRecords @ {:#x} !", posBeforePropertyRecords));
NodeRecord32B nestedList[while($ < endOffset)];
NodeRecord32 nestedList[while($ < endOffset)];
std::assert($ == endOffset, std::format("Invalid size of nestedList @ {:#x} !", posAfterPropertyRecords));
};
struct NodeRecord32B {
u32 endOffset;
u32 numProperties;
u32 propertyListLen;
u8 nameLen;
// Detect sentinel record which marks the end of a list of node records
if (endOffset == 0
&& numProperties == 0
&& propertyListLen == 0
&& nameLen == 0) {
break;
}
char name[nameLen];
auto posBeforePropertyRecords = $;
auto posAfterPropertyRecords = posBeforePropertyRecords + propertyListLen;
PropertyRecord propertyRecords[numProperties];
std::assert($ == posAfterPropertyRecords, std::format("Invalid size of propertyRecords @ {:#x} !", posBeforePropertyRecords));
NodeRecord32A nestedList[while($ < endOffset)];
std::assert($ == endOffset, std::format("Invalid size of nestedList @ {:#x} !", posAfterPropertyRecords));
};
using NodeRecord64B;
struct NodeRecord64A {
struct NodeRecord64 {
u64 endOffset;
u64 numProperties;
u64 propertyListLen;
@@ -154,30 +127,7 @@ struct NodeRecord64A {
auto posAfterPropertyRecords = posBeforePropertyRecords + propertyListLen;
PropertyRecord propertyRecords[numProperties];
std::assert($ == posAfterPropertyRecords, std::format("Invalid size of propertyRecords @ {:#x} !", posBeforePropertyRecords));
NodeRecord64B nestedList[while($ < endOffset)];
std::assert($ == endOffset, std::format("Invalid size of nestedList @ {:#x} !", posAfterPropertyRecords));
};
struct NodeRecord64B {
u64 endOffset;
u64 numProperties;
u64 propertyListLen;
u8 nameLen;
// Detect sentinel record which marks the end of a list of node records
if (endOffset == 0
&& numProperties == 0
&& propertyListLen == 0
&& nameLen == 0) {
break;
}
char name[nameLen];
auto posBeforePropertyRecords = $;
auto posAfterPropertyRecords = posBeforePropertyRecords + propertyListLen;
PropertyRecord propertyRecords[numProperties];
std::assert($ == posAfterPropertyRecords, std::format("Invalid size of propertyRecords @ {:#x} !", posBeforePropertyRecords));
NodeRecord64A nestedList[while($ < endOffset)];
NodeRecord64 nestedList[while($ < endOffset)];
std::assert($ == endOffset, std::format("Invalid size of nestedList @ {:#x} !", posAfterPropertyRecords));
};
@@ -222,13 +172,13 @@ struct FBX {
Header header;
if (header.version < 7500) {
NodeRecord32A rootRecords[while(true)];
NodeRecord32 rootRecords[while(true)];
} else {
NodeRecord64A rootRecords[while(true)];
NodeRecord64 rootRecords[while(true)];
}
Footer footer;
std::assert_warn(header.version == footer.version, "Version numbers in header and footer do not match!");
};
FBX fbx @ 0x00;
FBX fbx @ 0x00;