Resource system: Difference between revisions
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→Resource size calculation: mention how the table is automatically generated by Nintendo
imported>NiceneNerd (Moved BFRES RSTB estimation to Help:Updating the RSTB) |
imported>Leoetlino (→Resource size calculation: mention how the table is automatically generated by Nintendo) |
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==== Resource size calculation ==== | ==== Resource size calculation ==== | ||
According to an internal source, Nintendo automatically generates the Resource Size Table using development builds of the game that are believed to contain instrumentation code (perhaps in the [[Patrol]] component) This is consistent with the fact that the RSTB asset has the "product" suffix in its name, which is used for machine-generated files, and also with the fact that a similar solution is used for actor instance heap size measurement. | |||
The resource loading heap is, for most factories, only used to allocate the file loading buffer (which is as large as the file to load), the C++ resource class, extra allocations depending on the resource class and some extra bytes to ensure data is aligned correctly in memory. | |||
Therefore, the following formula should give a correct size value for all resource types: | Therefore, the following formula should give a correct size value for all resource types: | ||
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PARSE_SIZE is the amount of memory allocated from the resource heap in the <code>Resource::parse</code> function. Determining the exact value of PARSE_SIZE requires reversing that function and tracking calls to <code>operator new()</code> because the amount of dynamically allocated memory depends on the resource. | PARSE_SIZE is the amount of memory allocated from the resource heap in the <code>Resource::parse</code> function. Determining the exact value of PARSE_SIZE requires reversing that function and tracking calls to <code>operator new()</code> because the amount of dynamically allocated memory depends on the resource. | ||
[[Category:Internals]] | [[Category:Internals]] | ||
<references /> | <references /> | ||